/******/ (function() { // webpackBootstrap
/******/ 	var __webpack_modules__ = ({

/***/ 7679:
/***/ (function(module, exports) {

var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;// addapted from the document.currentScript polyfill by Adam Miller
// MIT license
// source: https://github.com/amiller-gh/currentScript-polyfill

// added support for Firefox https://bugzilla.mozilla.org/show_bug.cgi?id=1620505

(function (root, factory) {
  if (true) {
    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
		__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
		(__WEBPACK_AMD_DEFINE_FACTORY__.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__)) : __WEBPACK_AMD_DEFINE_FACTORY__),
		__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
  } else {}
}(typeof self !== 'undefined' ? self : this, function () {
  function getCurrentScript () {
    var descriptor = Object.getOwnPropertyDescriptor(document, 'currentScript')
    // for chrome
    if (!descriptor && 'currentScript' in document && document.currentScript) {
      return document.currentScript
    }

    // for other browsers with native support for currentScript
    if (descriptor && descriptor.get !== getCurrentScript && document.currentScript) {
      return document.currentScript
    }
  
    // IE 8-10 support script readyState
    // IE 11+ & Firefox support stack trace
    try {
      throw new Error();
    }
    catch (err) {
      // Find the second match for the "at" string to get file src url from stack.
      var ieStackRegExp = /.*at [^(]*\((.*):(.+):(.+)\)$/ig,
        ffStackRegExp = /@([^@]*):(\d+):(\d+)\s*$/ig,
        stackDetails = ieStackRegExp.exec(err.stack) || ffStackRegExp.exec(err.stack),
        scriptLocation = (stackDetails && stackDetails[1]) || false,
        line = (stackDetails && stackDetails[2]) || false,
        currentLocation = document.location.href.replace(document.location.hash, ''),
        pageSource,
        inlineScriptSourceRegExp,
        inlineScriptSource,
        scripts = document.getElementsByTagName('script'); // Live NodeList collection
  
      if (scriptLocation === currentLocation) {
        pageSource = document.documentElement.outerHTML;
        inlineScriptSourceRegExp = new RegExp('(?:[^\\n]+?\\n){0,' + (line - 2) + '}[^<]*<script>([\\d\\D]*?)<\\/script>[\\d\\D]*', 'i');
        inlineScriptSource = pageSource.replace(inlineScriptSourceRegExp, '$1').trim();
      }
  
      for (var i = 0; i < scripts.length; i++) {
        // If ready state is interactive, return the script tag
        if (scripts[i].readyState === 'interactive') {
          return scripts[i];
        }
  
        // If src matches, return the script tag
        if (scripts[i].src === scriptLocation) {
          return scripts[i];
        }
  
        // If inline source matches, return the script tag
        if (
          scriptLocation === currentLocation &&
          scripts[i].innerHTML &&
          scripts[i].innerHTML.trim() === inlineScriptSource
        ) {
          return scripts[i];
        }
      }
  
      // If no match, return null
      return null;
    }
  };

  return getCurrentScript
}));


/***/ }),

/***/ 9662:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var isCallable = __webpack_require__(614);
var tryToString = __webpack_require__(6330);

var TypeError = global.TypeError;

// `Assert: IsCallable(argument) is true`
module.exports = function (argument) {
  if (isCallable(argument)) return argument;
  throw TypeError(tryToString(argument) + ' is not a function');
};


/***/ }),

/***/ 9483:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var isConstructor = __webpack_require__(4411);
var tryToString = __webpack_require__(6330);

var TypeError = global.TypeError;

// `Assert: IsConstructor(argument) is true`
module.exports = function (argument) {
  if (isConstructor(argument)) return argument;
  throw TypeError(tryToString(argument) + ' is not a constructor');
};


/***/ }),

/***/ 6077:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var isCallable = __webpack_require__(614);

var String = global.String;
var TypeError = global.TypeError;

module.exports = function (argument) {
  if (typeof argument == 'object' || isCallable(argument)) return argument;
  throw TypeError("Can't set " + String(argument) + ' as a prototype');
};


/***/ }),

/***/ 1223:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var wellKnownSymbol = __webpack_require__(5112);
var create = __webpack_require__(30);
var definePropertyModule = __webpack_require__(3070);

var UNSCOPABLES = wellKnownSymbol('unscopables');
var ArrayPrototype = Array.prototype;

// Array.prototype[@@unscopables]
// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
if (ArrayPrototype[UNSCOPABLES] == undefined) {
  definePropertyModule.f(ArrayPrototype, UNSCOPABLES, {
    configurable: true,
    value: create(null)
  });
}

// add a key to Array.prototype[@@unscopables]
module.exports = function (key) {
  ArrayPrototype[UNSCOPABLES][key] = true;
};


/***/ }),

/***/ 5787:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var isPrototypeOf = __webpack_require__(7976);

var TypeError = global.TypeError;

module.exports = function (it, Prototype) {
  if (isPrototypeOf(Prototype, it)) return it;
  throw TypeError('Incorrect invocation');
};


/***/ }),

/***/ 9670:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var isObject = __webpack_require__(111);

var String = global.String;
var TypeError = global.TypeError;

// `Assert: Type(argument) is Object`
module.exports = function (argument) {
  if (isObject(argument)) return argument;
  throw TypeError(String(argument) + ' is not an object');
};


/***/ }),

/***/ 1285:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var toObject = __webpack_require__(7908);
var toAbsoluteIndex = __webpack_require__(1400);
var lengthOfArrayLike = __webpack_require__(6244);

// `Array.prototype.fill` method implementation
// https://tc39.es/ecma262/#sec-array.prototype.fill
module.exports = function fill(value /* , start = 0, end = @length */) {
  var O = toObject(this);
  var length = lengthOfArrayLike(O);
  var argumentsLength = arguments.length;
  var index = toAbsoluteIndex(argumentsLength > 1 ? arguments[1] : undefined, length);
  var end = argumentsLength > 2 ? arguments[2] : undefined;
  var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
  while (endPos > index) O[index++] = value;
  return O;
};


/***/ }),

/***/ 1318:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var toIndexedObject = __webpack_require__(5656);
var toAbsoluteIndex = __webpack_require__(1400);
var lengthOfArrayLike = __webpack_require__(6244);

// `Array.prototype.{ indexOf, includes }` methods implementation
var createMethod = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIndexedObject($this);
    var length = lengthOfArrayLike(O);
    var index = toAbsoluteIndex(fromIndex, length);
    var value;
    // Array#includes uses SameValueZero equality algorithm
    // eslint-disable-next-line no-self-compare -- NaN check
    if (IS_INCLUDES && el != el) while (length > index) {
      value = O[index++];
      // eslint-disable-next-line no-self-compare -- NaN check
      if (value != value) return true;
    // Array#indexOf ignores holes, Array#includes - not
    } else for (;length > index; index++) {
      if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;
    } return !IS_INCLUDES && -1;
  };
};

module.exports = {
  // `Array.prototype.includes` method
  // https://tc39.es/ecma262/#sec-array.prototype.includes
  includes: createMethod(true),
  // `Array.prototype.indexOf` method
  // https://tc39.es/ecma262/#sec-array.prototype.indexof
  indexOf: createMethod(false)
};


/***/ }),

/***/ 1194:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var fails = __webpack_require__(7293);
var wellKnownSymbol = __webpack_require__(5112);
var V8_VERSION = __webpack_require__(7392);

var SPECIES = wellKnownSymbol('species');

module.exports = function (METHOD_NAME) {
  // We can't use this feature detection in V8 since it causes
  // deoptimization and serious performance degradation
  // https://github.com/zloirock/core-js/issues/677
  return V8_VERSION >= 51 || !fails(function () {
    var array = [];
    var constructor = array.constructor = {};
    constructor[SPECIES] = function () {
      return { foo: 1 };
    };
    return array[METHOD_NAME](Boolean).foo !== 1;
  });
};


/***/ }),

/***/ 206:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);

module.exports = uncurryThis([].slice);


/***/ }),

/***/ 7475:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var isArray = __webpack_require__(3157);
var isConstructor = __webpack_require__(4411);
var isObject = __webpack_require__(111);
var wellKnownSymbol = __webpack_require__(5112);

var SPECIES = wellKnownSymbol('species');
var Array = global.Array;

// a part of `ArraySpeciesCreate` abstract operation
// https://tc39.es/ecma262/#sec-arrayspeciescreate
module.exports = function (originalArray) {
  var C;
  if (isArray(originalArray)) {
    C = originalArray.constructor;
    // cross-realm fallback
    if (isConstructor(C) && (C === Array || isArray(C.prototype))) C = undefined;
    else if (isObject(C)) {
      C = C[SPECIES];
      if (C === null) C = undefined;
    }
  } return C === undefined ? Array : C;
};


/***/ }),

/***/ 5417:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var arraySpeciesConstructor = __webpack_require__(7475);

// `ArraySpeciesCreate` abstract operation
// https://tc39.es/ecma262/#sec-arrayspeciescreate
module.exports = function (originalArray, length) {
  return new (arraySpeciesConstructor(originalArray))(length === 0 ? 0 : length);
};


/***/ }),

/***/ 7072:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var wellKnownSymbol = __webpack_require__(5112);

var ITERATOR = wellKnownSymbol('iterator');
var SAFE_CLOSING = false;

try {
  var called = 0;
  var iteratorWithReturn = {
    next: function () {
      return { done: !!called++ };
    },
    'return': function () {
      SAFE_CLOSING = true;
    }
  };
  iteratorWithReturn[ITERATOR] = function () {
    return this;
  };
  // eslint-disable-next-line es-x/no-array-from, no-throw-literal -- required for testing
  Array.from(iteratorWithReturn, function () { throw 2; });
} catch (error) { /* empty */ }

module.exports = function (exec, SKIP_CLOSING) {
  if (!SKIP_CLOSING && !SAFE_CLOSING) return false;
  var ITERATION_SUPPORT = false;
  try {
    var object = {};
    object[ITERATOR] = function () {
      return {
        next: function () {
          return { done: ITERATION_SUPPORT = true };
        }
      };
    };
    exec(object);
  } catch (error) { /* empty */ }
  return ITERATION_SUPPORT;
};


/***/ }),

/***/ 4326:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);

var toString = uncurryThis({}.toString);
var stringSlice = uncurryThis(''.slice);

module.exports = function (it) {
  return stringSlice(toString(it), 8, -1);
};


/***/ }),

/***/ 648:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var TO_STRING_TAG_SUPPORT = __webpack_require__(1694);
var isCallable = __webpack_require__(614);
var classofRaw = __webpack_require__(4326);
var wellKnownSymbol = __webpack_require__(5112);

var TO_STRING_TAG = wellKnownSymbol('toStringTag');
var Object = global.Object;

// ES3 wrong here
var CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) == 'Arguments';

// fallback for IE11 Script Access Denied error
var tryGet = function (it, key) {
  try {
    return it[key];
  } catch (error) { /* empty */ }
};

// getting tag from ES6+ `Object.prototype.toString`
module.exports = TO_STRING_TAG_SUPPORT ? classofRaw : function (it) {
  var O, tag, result;
  return it === undefined ? 'Undefined' : it === null ? 'Null'
    // @@toStringTag case
    : typeof (tag = tryGet(O = Object(it), TO_STRING_TAG)) == 'string' ? tag
    // builtinTag case
    : CORRECT_ARGUMENTS ? classofRaw(O)
    // ES3 arguments fallback
    : (result = classofRaw(O)) == 'Object' && isCallable(O.callee) ? 'Arguments' : result;
};


/***/ }),

/***/ 9920:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var hasOwn = __webpack_require__(2597);
var ownKeys = __webpack_require__(3887);
var getOwnPropertyDescriptorModule = __webpack_require__(1236);
var definePropertyModule = __webpack_require__(3070);

module.exports = function (target, source, exceptions) {
  var keys = ownKeys(source);
  var defineProperty = definePropertyModule.f;
  var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    if (!hasOwn(target, key) && !(exceptions && hasOwn(exceptions, key))) {
      defineProperty(target, key, getOwnPropertyDescriptor(source, key));
    }
  }
};


/***/ }),

/***/ 8880:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var DESCRIPTORS = __webpack_require__(9781);
var definePropertyModule = __webpack_require__(3070);
var createPropertyDescriptor = __webpack_require__(9114);

module.exports = DESCRIPTORS ? function (object, key, value) {
  return definePropertyModule.f(object, key, createPropertyDescriptor(1, value));
} : function (object, key, value) {
  object[key] = value;
  return object;
};


/***/ }),

/***/ 9114:
/***/ (function(module) {

module.exports = function (bitmap, value) {
  return {
    enumerable: !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable: !(bitmap & 4),
    value: value
  };
};


/***/ }),

/***/ 6135:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var toPropertyKey = __webpack_require__(4948);
var definePropertyModule = __webpack_require__(3070);
var createPropertyDescriptor = __webpack_require__(9114);

module.exports = function (object, key, value) {
  var propertyKey = toPropertyKey(key);
  if (propertyKey in object) definePropertyModule.f(object, propertyKey, createPropertyDescriptor(0, value));
  else object[propertyKey] = value;
};


/***/ }),

/***/ 8052:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var isCallable = __webpack_require__(614);
var createNonEnumerableProperty = __webpack_require__(8880);
var makeBuiltIn = __webpack_require__(6339);
var setGlobal = __webpack_require__(3505);

module.exports = function (O, key, value, options) {
  var unsafe = options ? !!options.unsafe : false;
  var simple = options ? !!options.enumerable : false;
  var noTargetGet = options ? !!options.noTargetGet : false;
  var name = options && options.name !== undefined ? options.name : key;
  if (isCallable(value)) makeBuiltIn(value, name, options);
  if (O === global) {
    if (simple) O[key] = value;
    else setGlobal(key, value);
    return O;
  } else if (!unsafe) {
    delete O[key];
  } else if (!noTargetGet && O[key]) {
    simple = true;
  }
  if (simple) O[key] = value;
  else createNonEnumerableProperty(O, key, value);
  return O;
};


/***/ }),

/***/ 9781:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var fails = __webpack_require__(7293);

// Detect IE8's incomplete defineProperty implementation
module.exports = !fails(function () {
  // eslint-disable-next-line es-x/no-object-defineproperty -- required for testing
  return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;
});


/***/ }),

/***/ 317:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var isObject = __webpack_require__(111);

var document = global.document;
// typeof document.createElement is 'object' in old IE
var EXISTS = isObject(document) && isObject(document.createElement);

module.exports = function (it) {
  return EXISTS ? document.createElement(it) : {};
};


/***/ }),

/***/ 7871:
/***/ (function(module) {

module.exports = typeof window == 'object' && typeof Deno != 'object';


/***/ }),

/***/ 1528:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var userAgent = __webpack_require__(8113);
var global = __webpack_require__(7854);

module.exports = /ipad|iphone|ipod/i.test(userAgent) && global.Pebble !== undefined;


/***/ }),

/***/ 6833:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var userAgent = __webpack_require__(8113);

module.exports = /(?:ipad|iphone|ipod).*applewebkit/i.test(userAgent);


/***/ }),

/***/ 5268:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var classof = __webpack_require__(4326);
var global = __webpack_require__(7854);

module.exports = classof(global.process) == 'process';


/***/ }),

/***/ 1036:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var userAgent = __webpack_require__(8113);

module.exports = /web0s(?!.*chrome)/i.test(userAgent);


/***/ }),

/***/ 8113:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var getBuiltIn = __webpack_require__(5005);

module.exports = getBuiltIn('navigator', 'userAgent') || '';


/***/ }),

/***/ 7392:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var userAgent = __webpack_require__(8113);

var process = global.process;
var Deno = global.Deno;
var versions = process && process.versions || Deno && Deno.version;
var v8 = versions && versions.v8;
var match, version;

if (v8) {
  match = v8.split('.');
  // in old Chrome, versions of V8 isn't V8 = Chrome / 10
  // but their correct versions are not interesting for us
  version = match[0] > 0 && match[0] < 4 ? 1 : +(match[0] + match[1]);
}

// BrowserFS NodeJS `process` polyfill incorrectly set `.v8` to `0.0`
// so check `userAgent` even if `.v8` exists, but 0
if (!version && userAgent) {
  match = userAgent.match(/Edge\/(\d+)/);
  if (!match || match[1] >= 74) {
    match = userAgent.match(/Chrome\/(\d+)/);
    if (match) version = +match[1];
  }
}

module.exports = version;


/***/ }),

/***/ 748:
/***/ (function(module) {

// IE8- don't enum bug keys
module.exports = [
  'constructor',
  'hasOwnProperty',
  'isPrototypeOf',
  'propertyIsEnumerable',
  'toLocaleString',
  'toString',
  'valueOf'
];


/***/ }),

/***/ 2109:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var getOwnPropertyDescriptor = (__webpack_require__(1236).f);
var createNonEnumerableProperty = __webpack_require__(8880);
var defineBuiltIn = __webpack_require__(8052);
var setGlobal = __webpack_require__(3505);
var copyConstructorProperties = __webpack_require__(9920);
var isForced = __webpack_require__(4705);

/*
  options.target      - name of the target object
  options.global      - target is the global object
  options.stat        - export as static methods of target
  options.proto       - export as prototype methods of target
  options.real        - real prototype method for the `pure` version
  options.forced      - export even if the native feature is available
  options.bind        - bind methods to the target, required for the `pure` version
  options.wrap        - wrap constructors to preventing global pollution, required for the `pure` version
  options.unsafe      - use the simple assignment of property instead of delete + defineProperty
  options.sham        - add a flag to not completely full polyfills
  options.enumerable  - export as enumerable property
  options.noTargetGet - prevent calling a getter on target
  options.name        - the .name of the function if it does not match the key
*/
module.exports = function (options, source) {
  var TARGET = options.target;
  var GLOBAL = options.global;
  var STATIC = options.stat;
  var FORCED, target, key, targetProperty, sourceProperty, descriptor;
  if (GLOBAL) {
    target = global;
  } else if (STATIC) {
    target = global[TARGET] || setGlobal(TARGET, {});
  } else {
    target = (global[TARGET] || {}).prototype;
  }
  if (target) for (key in source) {
    sourceProperty = source[key];
    if (options.noTargetGet) {
      descriptor = getOwnPropertyDescriptor(target, key);
      targetProperty = descriptor && descriptor.value;
    } else targetProperty = target[key];
    FORCED = isForced(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);
    // contained in target
    if (!FORCED && targetProperty !== undefined) {
      if (typeof sourceProperty == typeof targetProperty) continue;
      copyConstructorProperties(sourceProperty, targetProperty);
    }
    // add a flag to not completely full polyfills
    if (options.sham || (targetProperty && targetProperty.sham)) {
      createNonEnumerableProperty(sourceProperty, 'sham', true);
    }
    defineBuiltIn(target, key, sourceProperty, options);
  }
};


/***/ }),

/***/ 7293:
/***/ (function(module) {

module.exports = function (exec) {
  try {
    return !!exec();
  } catch (error) {
    return true;
  }
};


/***/ }),

/***/ 2104:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var NATIVE_BIND = __webpack_require__(4374);

var FunctionPrototype = Function.prototype;
var apply = FunctionPrototype.apply;
var call = FunctionPrototype.call;

// eslint-disable-next-line es-x/no-reflect -- safe
module.exports = typeof Reflect == 'object' && Reflect.apply || (NATIVE_BIND ? call.bind(apply) : function () {
  return call.apply(apply, arguments);
});


/***/ }),

/***/ 9974:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);
var aCallable = __webpack_require__(9662);
var NATIVE_BIND = __webpack_require__(4374);

var bind = uncurryThis(uncurryThis.bind);

// optional / simple context binding
module.exports = function (fn, that) {
  aCallable(fn);
  return that === undefined ? fn : NATIVE_BIND ? bind(fn, that) : function (/* ...args */) {
    return fn.apply(that, arguments);
  };
};


/***/ }),

/***/ 4374:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var fails = __webpack_require__(7293);

module.exports = !fails(function () {
  // eslint-disable-next-line es-x/no-function-prototype-bind -- safe
  var test = (function () { /* empty */ }).bind();
  // eslint-disable-next-line no-prototype-builtins -- safe
  return typeof test != 'function' || test.hasOwnProperty('prototype');
});


/***/ }),

/***/ 6916:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var NATIVE_BIND = __webpack_require__(4374);

var call = Function.prototype.call;

module.exports = NATIVE_BIND ? call.bind(call) : function () {
  return call.apply(call, arguments);
};


/***/ }),

/***/ 6530:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var DESCRIPTORS = __webpack_require__(9781);
var hasOwn = __webpack_require__(2597);

var FunctionPrototype = Function.prototype;
// eslint-disable-next-line es-x/no-object-getownpropertydescriptor -- safe
var getDescriptor = DESCRIPTORS && Object.getOwnPropertyDescriptor;

var EXISTS = hasOwn(FunctionPrototype, 'name');
// additional protection from minified / mangled / dropped function names
var PROPER = EXISTS && (function something() { /* empty */ }).name === 'something';
var CONFIGURABLE = EXISTS && (!DESCRIPTORS || (DESCRIPTORS && getDescriptor(FunctionPrototype, 'name').configurable));

module.exports = {
  EXISTS: EXISTS,
  PROPER: PROPER,
  CONFIGURABLE: CONFIGURABLE
};


/***/ }),

/***/ 1702:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var NATIVE_BIND = __webpack_require__(4374);

var FunctionPrototype = Function.prototype;
var bind = FunctionPrototype.bind;
var call = FunctionPrototype.call;
var uncurryThis = NATIVE_BIND && bind.bind(call, call);

module.exports = NATIVE_BIND ? function (fn) {
  return fn && uncurryThis(fn);
} : function (fn) {
  return fn && function () {
    return call.apply(fn, arguments);
  };
};


/***/ }),

/***/ 5005:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var isCallable = __webpack_require__(614);

var aFunction = function (argument) {
  return isCallable(argument) ? argument : undefined;
};

module.exports = function (namespace, method) {
  return arguments.length < 2 ? aFunction(global[namespace]) : global[namespace] && global[namespace][method];
};


/***/ }),

/***/ 1246:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var classof = __webpack_require__(648);
var getMethod = __webpack_require__(8173);
var Iterators = __webpack_require__(7497);
var wellKnownSymbol = __webpack_require__(5112);

var ITERATOR = wellKnownSymbol('iterator');

module.exports = function (it) {
  if (it != undefined) return getMethod(it, ITERATOR)
    || getMethod(it, '@@iterator')
    || Iterators[classof(it)];
};


/***/ }),

/***/ 8554:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var call = __webpack_require__(6916);
var aCallable = __webpack_require__(9662);
var anObject = __webpack_require__(9670);
var tryToString = __webpack_require__(6330);
var getIteratorMethod = __webpack_require__(1246);

var TypeError = global.TypeError;

module.exports = function (argument, usingIterator) {
  var iteratorMethod = arguments.length < 2 ? getIteratorMethod(argument) : usingIterator;
  if (aCallable(iteratorMethod)) return anObject(call(iteratorMethod, argument));
  throw TypeError(tryToString(argument) + ' is not iterable');
};


/***/ }),

/***/ 8173:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var aCallable = __webpack_require__(9662);

// `GetMethod` abstract operation
// https://tc39.es/ecma262/#sec-getmethod
module.exports = function (V, P) {
  var func = V[P];
  return func == null ? undefined : aCallable(func);
};


/***/ }),

/***/ 7854:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var check = function (it) {
  return it && it.Math == Math && it;
};

// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
module.exports =
  // eslint-disable-next-line es-x/no-global-this -- safe
  check(typeof globalThis == 'object' && globalThis) ||
  check(typeof window == 'object' && window) ||
  // eslint-disable-next-line no-restricted-globals -- safe
  check(typeof self == 'object' && self) ||
  check(typeof __webpack_require__.g == 'object' && __webpack_require__.g) ||
  // eslint-disable-next-line no-new-func -- fallback
  (function () { return this; })() || Function('return this')();


/***/ }),

/***/ 2597:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);
var toObject = __webpack_require__(7908);

var hasOwnProperty = uncurryThis({}.hasOwnProperty);

// `HasOwnProperty` abstract operation
// https://tc39.es/ecma262/#sec-hasownproperty
// eslint-disable-next-line es-x/no-object-hasown -- safe
module.exports = Object.hasOwn || function hasOwn(it, key) {
  return hasOwnProperty(toObject(it), key);
};


/***/ }),

/***/ 3501:
/***/ (function(module) {

module.exports = {};


/***/ }),

/***/ 842:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);

module.exports = function (a, b) {
  var console = global.console;
  if (console && console.error) {
    arguments.length == 1 ? console.error(a) : console.error(a, b);
  }
};


/***/ }),

/***/ 490:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var getBuiltIn = __webpack_require__(5005);

module.exports = getBuiltIn('document', 'documentElement');


/***/ }),

/***/ 4664:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var DESCRIPTORS = __webpack_require__(9781);
var fails = __webpack_require__(7293);
var createElement = __webpack_require__(317);

// Thanks to IE8 for its funny defineProperty
module.exports = !DESCRIPTORS && !fails(function () {
  // eslint-disable-next-line es-x/no-object-defineproperty -- required for testing
  return Object.defineProperty(createElement('div'), 'a', {
    get: function () { return 7; }
  }).a != 7;
});


/***/ }),

/***/ 8361:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var uncurryThis = __webpack_require__(1702);
var fails = __webpack_require__(7293);
var classof = __webpack_require__(4326);

var Object = global.Object;
var split = uncurryThis(''.split);

// fallback for non-array-like ES3 and non-enumerable old V8 strings
module.exports = fails(function () {
  // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
  // eslint-disable-next-line no-prototype-builtins -- safe
  return !Object('z').propertyIsEnumerable(0);
}) ? function (it) {
  return classof(it) == 'String' ? split(it, '') : Object(it);
} : Object;


/***/ }),

/***/ 9587:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var isCallable = __webpack_require__(614);
var isObject = __webpack_require__(111);
var setPrototypeOf = __webpack_require__(7674);

// makes subclassing work correct for wrapped built-ins
module.exports = function ($this, dummy, Wrapper) {
  var NewTarget, NewTargetPrototype;
  if (
    // it can work only with native `setPrototypeOf`
    setPrototypeOf &&
    // we haven't completely correct pre-ES6 way for getting `new.target`, so use this
    isCallable(NewTarget = dummy.constructor) &&
    NewTarget !== Wrapper &&
    isObject(NewTargetPrototype = NewTarget.prototype) &&
    NewTargetPrototype !== Wrapper.prototype
  ) setPrototypeOf($this, NewTargetPrototype);
  return $this;
};


/***/ }),

/***/ 2788:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);
var isCallable = __webpack_require__(614);
var store = __webpack_require__(5465);

var functionToString = uncurryThis(Function.toString);

// this helper broken in `core-js@3.4.1-3.4.4`, so we can't use `shared` helper
if (!isCallable(store.inspectSource)) {
  store.inspectSource = function (it) {
    return functionToString(it);
  };
}

module.exports = store.inspectSource;


/***/ }),

/***/ 9909:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var NATIVE_WEAK_MAP = __webpack_require__(8536);
var global = __webpack_require__(7854);
var uncurryThis = __webpack_require__(1702);
var isObject = __webpack_require__(111);
var createNonEnumerableProperty = __webpack_require__(8880);
var hasOwn = __webpack_require__(2597);
var shared = __webpack_require__(5465);
var sharedKey = __webpack_require__(6200);
var hiddenKeys = __webpack_require__(3501);

var OBJECT_ALREADY_INITIALIZED = 'Object already initialized';
var TypeError = global.TypeError;
var WeakMap = global.WeakMap;
var set, get, has;

var enforce = function (it) {
  return has(it) ? get(it) : set(it, {});
};

var getterFor = function (TYPE) {
  return function (it) {
    var state;
    if (!isObject(it) || (state = get(it)).type !== TYPE) {
      throw TypeError('Incompatible receiver, ' + TYPE + ' required');
    } return state;
  };
};

if (NATIVE_WEAK_MAP || shared.state) {
  var store = shared.state || (shared.state = new WeakMap());
  var wmget = uncurryThis(store.get);
  var wmhas = uncurryThis(store.has);
  var wmset = uncurryThis(store.set);
  set = function (it, metadata) {
    if (wmhas(store, it)) throw new TypeError(OBJECT_ALREADY_INITIALIZED);
    metadata.facade = it;
    wmset(store, it, metadata);
    return metadata;
  };
  get = function (it) {
    return wmget(store, it) || {};
  };
  has = function (it) {
    return wmhas(store, it);
  };
} else {
  var STATE = sharedKey('state');
  hiddenKeys[STATE] = true;
  set = function (it, metadata) {
    if (hasOwn(it, STATE)) throw new TypeError(OBJECT_ALREADY_INITIALIZED);
    metadata.facade = it;
    createNonEnumerableProperty(it, STATE, metadata);
    return metadata;
  };
  get = function (it) {
    return hasOwn(it, STATE) ? it[STATE] : {};
  };
  has = function (it) {
    return hasOwn(it, STATE);
  };
}

module.exports = {
  set: set,
  get: get,
  has: has,
  enforce: enforce,
  getterFor: getterFor
};


/***/ }),

/***/ 7659:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var wellKnownSymbol = __webpack_require__(5112);
var Iterators = __webpack_require__(7497);

var ITERATOR = wellKnownSymbol('iterator');
var ArrayPrototype = Array.prototype;

// check on default Array iterator
module.exports = function (it) {
  return it !== undefined && (Iterators.Array === it || ArrayPrototype[ITERATOR] === it);
};


/***/ }),

/***/ 3157:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var classof = __webpack_require__(4326);

// `IsArray` abstract operation
// https://tc39.es/ecma262/#sec-isarray
// eslint-disable-next-line es-x/no-array-isarray -- safe
module.exports = Array.isArray || function isArray(argument) {
  return classof(argument) == 'Array';
};


/***/ }),

/***/ 614:
/***/ (function(module) {

// `IsCallable` abstract operation
// https://tc39.es/ecma262/#sec-iscallable
module.exports = function (argument) {
  return typeof argument == 'function';
};


/***/ }),

/***/ 4411:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);
var fails = __webpack_require__(7293);
var isCallable = __webpack_require__(614);
var classof = __webpack_require__(648);
var getBuiltIn = __webpack_require__(5005);
var inspectSource = __webpack_require__(2788);

var noop = function () { /* empty */ };
var empty = [];
var construct = getBuiltIn('Reflect', 'construct');
var constructorRegExp = /^\s*(?:class|function)\b/;
var exec = uncurryThis(constructorRegExp.exec);
var INCORRECT_TO_STRING = !constructorRegExp.exec(noop);

var isConstructorModern = function isConstructor(argument) {
  if (!isCallable(argument)) return false;
  try {
    construct(noop, empty, argument);
    return true;
  } catch (error) {
    return false;
  }
};

var isConstructorLegacy = function isConstructor(argument) {
  if (!isCallable(argument)) return false;
  switch (classof(argument)) {
    case 'AsyncFunction':
    case 'GeneratorFunction':
    case 'AsyncGeneratorFunction': return false;
  }
  try {
    // we can't check .prototype since constructors produced by .bind haven't it
    // `Function#toString` throws on some built-it function in some legacy engines
    // (for example, `DOMQuad` and similar in FF41-)
    return INCORRECT_TO_STRING || !!exec(constructorRegExp, inspectSource(argument));
  } catch (error) {
    return true;
  }
};

isConstructorLegacy.sham = true;

// `IsConstructor` abstract operation
// https://tc39.es/ecma262/#sec-isconstructor
module.exports = !construct || fails(function () {
  var called;
  return isConstructorModern(isConstructorModern.call)
    || !isConstructorModern(Object)
    || !isConstructorModern(function () { called = true; })
    || called;
}) ? isConstructorLegacy : isConstructorModern;


/***/ }),

/***/ 4705:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var fails = __webpack_require__(7293);
var isCallable = __webpack_require__(614);

var replacement = /#|\.prototype\./;

var isForced = function (feature, detection) {
  var value = data[normalize(feature)];
  return value == POLYFILL ? true
    : value == NATIVE ? false
    : isCallable(detection) ? fails(detection)
    : !!detection;
};

var normalize = isForced.normalize = function (string) {
  return String(string).replace(replacement, '.').toLowerCase();
};

var data = isForced.data = {};
var NATIVE = isForced.NATIVE = 'N';
var POLYFILL = isForced.POLYFILL = 'P';

module.exports = isForced;


/***/ }),

/***/ 111:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var isCallable = __webpack_require__(614);

module.exports = function (it) {
  return typeof it == 'object' ? it !== null : isCallable(it);
};


/***/ }),

/***/ 1913:
/***/ (function(module) {

module.exports = false;


/***/ }),

/***/ 2190:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var getBuiltIn = __webpack_require__(5005);
var isCallable = __webpack_require__(614);
var isPrototypeOf = __webpack_require__(7976);
var USE_SYMBOL_AS_UID = __webpack_require__(3307);

var Object = global.Object;

module.exports = USE_SYMBOL_AS_UID ? function (it) {
  return typeof it == 'symbol';
} : function (it) {
  var $Symbol = getBuiltIn('Symbol');
  return isCallable($Symbol) && isPrototypeOf($Symbol.prototype, Object(it));
};


/***/ }),

/***/ 408:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var bind = __webpack_require__(9974);
var call = __webpack_require__(6916);
var anObject = __webpack_require__(9670);
var tryToString = __webpack_require__(6330);
var isArrayIteratorMethod = __webpack_require__(7659);
var lengthOfArrayLike = __webpack_require__(6244);
var isPrototypeOf = __webpack_require__(7976);
var getIterator = __webpack_require__(8554);
var getIteratorMethod = __webpack_require__(1246);
var iteratorClose = __webpack_require__(9212);

var TypeError = global.TypeError;

var Result = function (stopped, result) {
  this.stopped = stopped;
  this.result = result;
};

var ResultPrototype = Result.prototype;

module.exports = function (iterable, unboundFunction, options) {
  var that = options && options.that;
  var AS_ENTRIES = !!(options && options.AS_ENTRIES);
  var IS_ITERATOR = !!(options && options.IS_ITERATOR);
  var INTERRUPTED = !!(options && options.INTERRUPTED);
  var fn = bind(unboundFunction, that);
  var iterator, iterFn, index, length, result, next, step;

  var stop = function (condition) {
    if (iterator) iteratorClose(iterator, 'normal', condition);
    return new Result(true, condition);
  };

  var callFn = function (value) {
    if (AS_ENTRIES) {
      anObject(value);
      return INTERRUPTED ? fn(value[0], value[1], stop) : fn(value[0], value[1]);
    } return INTERRUPTED ? fn(value, stop) : fn(value);
  };

  if (IS_ITERATOR) {
    iterator = iterable;
  } else {
    iterFn = getIteratorMethod(iterable);
    if (!iterFn) throw TypeError(tryToString(iterable) + ' is not iterable');
    // optimisation for array iterators
    if (isArrayIteratorMethod(iterFn)) {
      for (index = 0, length = lengthOfArrayLike(iterable); length > index; index++) {
        result = callFn(iterable[index]);
        if (result && isPrototypeOf(ResultPrototype, result)) return result;
      } return new Result(false);
    }
    iterator = getIterator(iterable, iterFn);
  }

  next = iterator.next;
  while (!(step = call(next, iterator)).done) {
    try {
      result = callFn(step.value);
    } catch (error) {
      iteratorClose(iterator, 'throw', error);
    }
    if (typeof result == 'object' && result && isPrototypeOf(ResultPrototype, result)) return result;
  } return new Result(false);
};


/***/ }),

/***/ 9212:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var call = __webpack_require__(6916);
var anObject = __webpack_require__(9670);
var getMethod = __webpack_require__(8173);

module.exports = function (iterator, kind, value) {
  var innerResult, innerError;
  anObject(iterator);
  try {
    innerResult = getMethod(iterator, 'return');
    if (!innerResult) {
      if (kind === 'throw') throw value;
      return value;
    }
    innerResult = call(innerResult, iterator);
  } catch (error) {
    innerError = true;
    innerResult = error;
  }
  if (kind === 'throw') throw value;
  if (innerError) throw innerResult;
  anObject(innerResult);
  return value;
};


/***/ }),

/***/ 7497:
/***/ (function(module) {

module.exports = {};


/***/ }),

/***/ 6244:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var toLength = __webpack_require__(7466);

// `LengthOfArrayLike` abstract operation
// https://tc39.es/ecma262/#sec-lengthofarraylike
module.exports = function (obj) {
  return toLength(obj.length);
};


/***/ }),

/***/ 6339:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var fails = __webpack_require__(7293);
var isCallable = __webpack_require__(614);
var hasOwn = __webpack_require__(2597);
var DESCRIPTORS = __webpack_require__(9781);
var CONFIGURABLE_FUNCTION_NAME = (__webpack_require__(6530).CONFIGURABLE);
var inspectSource = __webpack_require__(2788);
var InternalStateModule = __webpack_require__(9909);

var enforceInternalState = InternalStateModule.enforce;
var getInternalState = InternalStateModule.get;
// eslint-disable-next-line es-x/no-object-defineproperty -- safe
var defineProperty = Object.defineProperty;

var CONFIGURABLE_LENGTH = DESCRIPTORS && !fails(function () {
  return defineProperty(function () { /* empty */ }, 'length', { value: 8 }).length !== 8;
});

var TEMPLATE = String(String).split('String');

var makeBuiltIn = module.exports = function (value, name, options) {
  if (String(name).slice(0, 7) === 'Symbol(') {
    name = '[' + String(name).replace(/^Symbol\(([^)]*)\)/, '$1') + ']';
  }
  if (options && options.getter) name = 'get ' + name;
  if (options && options.setter) name = 'set ' + name;
  if (!hasOwn(value, 'name') || (CONFIGURABLE_FUNCTION_NAME && value.name !== name)) {
    defineProperty(value, 'name', { value: name, configurable: true });
  }
  if (CONFIGURABLE_LENGTH && options && hasOwn(options, 'arity') && value.length !== options.arity) {
    defineProperty(value, 'length', { value: options.arity });
  }
  if (options && hasOwn(options, 'constructor') && options.constructor) {
    if (DESCRIPTORS) try {
      defineProperty(value, 'prototype', { writable: false });
    } catch (error) { /* empty */ }
  } else value.prototype = undefined;
  var state = enforceInternalState(value);
  if (!hasOwn(state, 'source')) {
    state.source = TEMPLATE.join(typeof name == 'string' ? name : '');
  } return value;
};

// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
// eslint-disable-next-line no-extend-native -- required
Function.prototype.toString = makeBuiltIn(function toString() {
  return isCallable(this) && getInternalState(this).source || inspectSource(this);
}, 'toString');


/***/ }),

/***/ 5948:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var bind = __webpack_require__(9974);
var getOwnPropertyDescriptor = (__webpack_require__(1236).f);
var macrotask = (__webpack_require__(261).set);
var IS_IOS = __webpack_require__(6833);
var IS_IOS_PEBBLE = __webpack_require__(1528);
var IS_WEBOS_WEBKIT = __webpack_require__(1036);
var IS_NODE = __webpack_require__(5268);

var MutationObserver = global.MutationObserver || global.WebKitMutationObserver;
var document = global.document;
var process = global.process;
var Promise = global.Promise;
// Node.js 11 shows ExperimentalWarning on getting `queueMicrotask`
var queueMicrotaskDescriptor = getOwnPropertyDescriptor(global, 'queueMicrotask');
var queueMicrotask = queueMicrotaskDescriptor && queueMicrotaskDescriptor.value;

var flush, head, last, notify, toggle, node, promise, then;

// modern engines have queueMicrotask method
if (!queueMicrotask) {
  flush = function () {
    var parent, fn;
    if (IS_NODE && (parent = process.domain)) parent.exit();
    while (head) {
      fn = head.fn;
      head = head.next;
      try {
        fn();
      } catch (error) {
        if (head) notify();
        else last = undefined;
        throw error;
      }
    } last = undefined;
    if (parent) parent.enter();
  };

  // browsers with MutationObserver, except iOS - https://github.com/zloirock/core-js/issues/339
  // also except WebOS Webkit https://github.com/zloirock/core-js/issues/898
  if (!IS_IOS && !IS_NODE && !IS_WEBOS_WEBKIT && MutationObserver && document) {
    toggle = true;
    node = document.createTextNode('');
    new MutationObserver(flush).observe(node, { characterData: true });
    notify = function () {
      node.data = toggle = !toggle;
    };
  // environments with maybe non-completely correct, but existent Promise
  } else if (!IS_IOS_PEBBLE && Promise && Promise.resolve) {
    // Promise.resolve without an argument throws an error in LG WebOS 2
    promise = Promise.resolve(undefined);
    // workaround of WebKit ~ iOS Safari 10.1 bug
    promise.constructor = Promise;
    then = bind(promise.then, promise);
    notify = function () {
      then(flush);
    };
  // Node.js without promises
  } else if (IS_NODE) {
    notify = function () {
      process.nextTick(flush);
    };
  // for other environments - macrotask based on:
  // - setImmediate
  // - MessageChannel
  // - window.postMessage
  // - onreadystatechange
  // - setTimeout
  } else {
    // strange IE + webpack dev server bug - use .bind(global)
    macrotask = bind(macrotask, global);
    notify = function () {
      macrotask(flush);
    };
  }
}

module.exports = queueMicrotask || function (fn) {
  var task = { fn: fn, next: undefined };
  if (last) last.next = task;
  if (!head) {
    head = task;
    notify();
  } last = task;
};


/***/ }),

/***/ 133:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

/* eslint-disable es-x/no-symbol -- required for testing */
var V8_VERSION = __webpack_require__(7392);
var fails = __webpack_require__(7293);

// eslint-disable-next-line es-x/no-object-getownpropertysymbols -- required for testing
module.exports = !!Object.getOwnPropertySymbols && !fails(function () {
  var symbol = Symbol();
  // Chrome 38 Symbol has incorrect toString conversion
  // `get-own-property-symbols` polyfill symbols converted to object are not Symbol instances
  return !String(symbol) || !(Object(symbol) instanceof Symbol) ||
    // Chrome 38-40 symbols are not inherited from DOM collections prototypes to instances
    !Symbol.sham && V8_VERSION && V8_VERSION < 41;
});


/***/ }),

/***/ 8536:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var isCallable = __webpack_require__(614);
var inspectSource = __webpack_require__(2788);

var WeakMap = global.WeakMap;

module.exports = isCallable(WeakMap) && /native code/.test(inspectSource(WeakMap));


/***/ }),

/***/ 8523:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var aCallable = __webpack_require__(9662);

var PromiseCapability = function (C) {
  var resolve, reject;
  this.promise = new C(function ($$resolve, $$reject) {
    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
    resolve = $$resolve;
    reject = $$reject;
  });
  this.resolve = aCallable(resolve);
  this.reject = aCallable(reject);
};

// `NewPromiseCapability` abstract operation
// https://tc39.es/ecma262/#sec-newpromisecapability
module.exports.f = function (C) {
  return new PromiseCapability(C);
};


/***/ }),

/***/ 1574:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var DESCRIPTORS = __webpack_require__(9781);
var uncurryThis = __webpack_require__(1702);
var call = __webpack_require__(6916);
var fails = __webpack_require__(7293);
var objectKeys = __webpack_require__(1956);
var getOwnPropertySymbolsModule = __webpack_require__(5181);
var propertyIsEnumerableModule = __webpack_require__(5296);
var toObject = __webpack_require__(7908);
var IndexedObject = __webpack_require__(8361);

// eslint-disable-next-line es-x/no-object-assign -- safe
var $assign = Object.assign;
// eslint-disable-next-line es-x/no-object-defineproperty -- required for testing
var defineProperty = Object.defineProperty;
var concat = uncurryThis([].concat);

// `Object.assign` method
// https://tc39.es/ecma262/#sec-object.assign
module.exports = !$assign || fails(function () {
  // should have correct order of operations (Edge bug)
  if (DESCRIPTORS && $assign({ b: 1 }, $assign(defineProperty({}, 'a', {
    enumerable: true,
    get: function () {
      defineProperty(this, 'b', {
        value: 3,
        enumerable: false
      });
    }
  }), { b: 2 })).b !== 1) return true;
  // should work with symbols and should have deterministic property order (V8 bug)
  var A = {};
  var B = {};
  // eslint-disable-next-line es-x/no-symbol -- safe
  var symbol = Symbol();
  var alphabet = 'abcdefghijklmnopqrst';
  A[symbol] = 7;
  alphabet.split('').forEach(function (chr) { B[chr] = chr; });
  return $assign({}, A)[symbol] != 7 || objectKeys($assign({}, B)).join('') != alphabet;
}) ? function assign(target, source) { // eslint-disable-line no-unused-vars -- required for `.length`
  var T = toObject(target);
  var argumentsLength = arguments.length;
  var index = 1;
  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
  var propertyIsEnumerable = propertyIsEnumerableModule.f;
  while (argumentsLength > index) {
    var S = IndexedObject(arguments[index++]);
    var keys = getOwnPropertySymbols ? concat(objectKeys(S), getOwnPropertySymbols(S)) : objectKeys(S);
    var length = keys.length;
    var j = 0;
    var key;
    while (length > j) {
      key = keys[j++];
      if (!DESCRIPTORS || call(propertyIsEnumerable, S, key)) T[key] = S[key];
    }
  } return T;
} : $assign;


/***/ }),

/***/ 30:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

/* global ActiveXObject -- old IE, WSH */
var anObject = __webpack_require__(9670);
var definePropertiesModule = __webpack_require__(6048);
var enumBugKeys = __webpack_require__(748);
var hiddenKeys = __webpack_require__(3501);
var html = __webpack_require__(490);
var documentCreateElement = __webpack_require__(317);
var sharedKey = __webpack_require__(6200);

var GT = '>';
var LT = '<';
var PROTOTYPE = 'prototype';
var SCRIPT = 'script';
var IE_PROTO = sharedKey('IE_PROTO');

var EmptyConstructor = function () { /* empty */ };

var scriptTag = function (content) {
  return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;
};

// Create object with fake `null` prototype: use ActiveX Object with cleared prototype
var NullProtoObjectViaActiveX = function (activeXDocument) {
  activeXDocument.write(scriptTag(''));
  activeXDocument.close();
  var temp = activeXDocument.parentWindow.Object;
  activeXDocument = null; // avoid memory leak
  return temp;
};

// Create object with fake `null` prototype: use iframe Object with cleared prototype
var NullProtoObjectViaIFrame = function () {
  // Thrash, waste and sodomy: IE GC bug
  var iframe = documentCreateElement('iframe');
  var JS = 'java' + SCRIPT + ':';
  var iframeDocument;
  iframe.style.display = 'none';
  html.appendChild(iframe);
  // https://github.com/zloirock/core-js/issues/475
  iframe.src = String(JS);
  iframeDocument = iframe.contentWindow.document;
  iframeDocument.open();
  iframeDocument.write(scriptTag('document.F=Object'));
  iframeDocument.close();
  return iframeDocument.F;
};

// Check for document.domain and active x support
// No need to use active x approach when document.domain is not set
// see https://github.com/es-shims/es5-shim/issues/150
// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346
// avoid IE GC bug
var activeXDocument;
var NullProtoObject = function () {
  try {
    activeXDocument = new ActiveXObject('htmlfile');
  } catch (error) { /* ignore */ }
  NullProtoObject = typeof document != 'undefined'
    ? document.domain && activeXDocument
      ? NullProtoObjectViaActiveX(activeXDocument) // old IE
      : NullProtoObjectViaIFrame()
    : NullProtoObjectViaActiveX(activeXDocument); // WSH
  var length = enumBugKeys.length;
  while (length--) delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];
  return NullProtoObject();
};

hiddenKeys[IE_PROTO] = true;

// `Object.create` method
// https://tc39.es/ecma262/#sec-object.create
// eslint-disable-next-line es-x/no-object-create -- safe
module.exports = Object.create || function create(O, Properties) {
  var result;
  if (O !== null) {
    EmptyConstructor[PROTOTYPE] = anObject(O);
    result = new EmptyConstructor();
    EmptyConstructor[PROTOTYPE] = null;
    // add "__proto__" for Object.getPrototypeOf polyfill
    result[IE_PROTO] = O;
  } else result = NullProtoObject();
  return Properties === undefined ? result : definePropertiesModule.f(result, Properties);
};


/***/ }),

/***/ 6048:
/***/ (function(__unused_webpack_module, exports, __webpack_require__) {

var DESCRIPTORS = __webpack_require__(9781);
var V8_PROTOTYPE_DEFINE_BUG = __webpack_require__(3353);
var definePropertyModule = __webpack_require__(3070);
var anObject = __webpack_require__(9670);
var toIndexedObject = __webpack_require__(5656);
var objectKeys = __webpack_require__(1956);

// `Object.defineProperties` method
// https://tc39.es/ecma262/#sec-object.defineproperties
// eslint-disable-next-line es-x/no-object-defineproperties -- safe
exports.f = DESCRIPTORS && !V8_PROTOTYPE_DEFINE_BUG ? Object.defineProperties : function defineProperties(O, Properties) {
  anObject(O);
  var props = toIndexedObject(Properties);
  var keys = objectKeys(Properties);
  var length = keys.length;
  var index = 0;
  var key;
  while (length > index) definePropertyModule.f(O, key = keys[index++], props[key]);
  return O;
};


/***/ }),

/***/ 3070:
/***/ (function(__unused_webpack_module, exports, __webpack_require__) {

var global = __webpack_require__(7854);
var DESCRIPTORS = __webpack_require__(9781);
var IE8_DOM_DEFINE = __webpack_require__(4664);
var V8_PROTOTYPE_DEFINE_BUG = __webpack_require__(3353);
var anObject = __webpack_require__(9670);
var toPropertyKey = __webpack_require__(4948);

var TypeError = global.TypeError;
// eslint-disable-next-line es-x/no-object-defineproperty -- safe
var $defineProperty = Object.defineProperty;
// eslint-disable-next-line es-x/no-object-getownpropertydescriptor -- safe
var $getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
var ENUMERABLE = 'enumerable';
var CONFIGURABLE = 'configurable';
var WRITABLE = 'writable';

// `Object.defineProperty` method
// https://tc39.es/ecma262/#sec-object.defineproperty
exports.f = DESCRIPTORS ? V8_PROTOTYPE_DEFINE_BUG ? function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPropertyKey(P);
  anObject(Attributes);
  if (typeof O === 'function' && P === 'prototype' && 'value' in Attributes && WRITABLE in Attributes && !Attributes[WRITABLE]) {
    var current = $getOwnPropertyDescriptor(O, P);
    if (current && current[WRITABLE]) {
      O[P] = Attributes.value;
      Attributes = {
        configurable: CONFIGURABLE in Attributes ? Attributes[CONFIGURABLE] : current[CONFIGURABLE],
        enumerable: ENUMERABLE in Attributes ? Attributes[ENUMERABLE] : current[ENUMERABLE],
        writable: false
      };
    }
  } return $defineProperty(O, P, Attributes);
} : $defineProperty : function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPropertyKey(P);
  anObject(Attributes);
  if (IE8_DOM_DEFINE) try {
    return $defineProperty(O, P, Attributes);
  } catch (error) { /* empty */ }
  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};


/***/ }),

/***/ 1236:
/***/ (function(__unused_webpack_module, exports, __webpack_require__) {

var DESCRIPTORS = __webpack_require__(9781);
var call = __webpack_require__(6916);
var propertyIsEnumerableModule = __webpack_require__(5296);
var createPropertyDescriptor = __webpack_require__(9114);
var toIndexedObject = __webpack_require__(5656);
var toPropertyKey = __webpack_require__(4948);
var hasOwn = __webpack_require__(2597);
var IE8_DOM_DEFINE = __webpack_require__(4664);

// eslint-disable-next-line es-x/no-object-getownpropertydescriptor -- safe
var $getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;

// `Object.getOwnPropertyDescriptor` method
// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
exports.f = DESCRIPTORS ? $getOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {
  O = toIndexedObject(O);
  P = toPropertyKey(P);
  if (IE8_DOM_DEFINE) try {
    return $getOwnPropertyDescriptor(O, P);
  } catch (error) { /* empty */ }
  if (hasOwn(O, P)) return createPropertyDescriptor(!call(propertyIsEnumerableModule.f, O, P), O[P]);
};


/***/ }),

/***/ 8006:
/***/ (function(__unused_webpack_module, exports, __webpack_require__) {

var internalObjectKeys = __webpack_require__(6324);
var enumBugKeys = __webpack_require__(748);

var hiddenKeys = enumBugKeys.concat('length', 'prototype');

// `Object.getOwnPropertyNames` method
// https://tc39.es/ecma262/#sec-object.getownpropertynames
// eslint-disable-next-line es-x/no-object-getownpropertynames -- safe
exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return internalObjectKeys(O, hiddenKeys);
};


/***/ }),

/***/ 5181:
/***/ (function(__unused_webpack_module, exports) {

// eslint-disable-next-line es-x/no-object-getownpropertysymbols -- safe
exports.f = Object.getOwnPropertySymbols;


/***/ }),

/***/ 7976:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);

module.exports = uncurryThis({}.isPrototypeOf);


/***/ }),

/***/ 6324:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);
var hasOwn = __webpack_require__(2597);
var toIndexedObject = __webpack_require__(5656);
var indexOf = (__webpack_require__(1318).indexOf);
var hiddenKeys = __webpack_require__(3501);

var push = uncurryThis([].push);

module.exports = function (object, names) {
  var O = toIndexedObject(object);
  var i = 0;
  var result = [];
  var key;
  for (key in O) !hasOwn(hiddenKeys, key) && hasOwn(O, key) && push(result, key);
  // Don't enum bug & hidden keys
  while (names.length > i) if (hasOwn(O, key = names[i++])) {
    ~indexOf(result, key) || push(result, key);
  }
  return result;
};


/***/ }),

/***/ 1956:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var internalObjectKeys = __webpack_require__(6324);
var enumBugKeys = __webpack_require__(748);

// `Object.keys` method
// https://tc39.es/ecma262/#sec-object.keys
// eslint-disable-next-line es-x/no-object-keys -- safe
module.exports = Object.keys || function keys(O) {
  return internalObjectKeys(O, enumBugKeys);
};


/***/ }),

/***/ 5296:
/***/ (function(__unused_webpack_module, exports) {

"use strict";

var $propertyIsEnumerable = {}.propertyIsEnumerable;
// eslint-disable-next-line es-x/no-object-getownpropertydescriptor -- safe
var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;

// Nashorn ~ JDK8 bug
var NASHORN_BUG = getOwnPropertyDescriptor && !$propertyIsEnumerable.call({ 1: 2 }, 1);

// `Object.prototype.propertyIsEnumerable` method implementation
// https://tc39.es/ecma262/#sec-object.prototype.propertyisenumerable
exports.f = NASHORN_BUG ? function propertyIsEnumerable(V) {
  var descriptor = getOwnPropertyDescriptor(this, V);
  return !!descriptor && descriptor.enumerable;
} : $propertyIsEnumerable;


/***/ }),

/***/ 7674:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

/* eslint-disable no-proto -- safe */
var uncurryThis = __webpack_require__(1702);
var anObject = __webpack_require__(9670);
var aPossiblePrototype = __webpack_require__(6077);

// `Object.setPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.setprototypeof
// Works with __proto__ only. Old v8 can't work with null proto objects.
// eslint-disable-next-line es-x/no-object-setprototypeof -- safe
module.exports = Object.setPrototypeOf || ('__proto__' in {} ? function () {
  var CORRECT_SETTER = false;
  var test = {};
  var setter;
  try {
    // eslint-disable-next-line es-x/no-object-getownpropertydescriptor -- safe
    setter = uncurryThis(Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set);
    setter(test, []);
    CORRECT_SETTER = test instanceof Array;
  } catch (error) { /* empty */ }
  return function setPrototypeOf(O, proto) {
    anObject(O);
    aPossiblePrototype(proto);
    if (CORRECT_SETTER) setter(O, proto);
    else O.__proto__ = proto;
    return O;
  };
}() : undefined);


/***/ }),

/***/ 288:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var TO_STRING_TAG_SUPPORT = __webpack_require__(1694);
var classof = __webpack_require__(648);

// `Object.prototype.toString` method implementation
// https://tc39.es/ecma262/#sec-object.prototype.tostring
module.exports = TO_STRING_TAG_SUPPORT ? {}.toString : function toString() {
  return '[object ' + classof(this) + ']';
};


/***/ }),

/***/ 2140:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var call = __webpack_require__(6916);
var isCallable = __webpack_require__(614);
var isObject = __webpack_require__(111);

var TypeError = global.TypeError;

// `OrdinaryToPrimitive` abstract operation
// https://tc39.es/ecma262/#sec-ordinarytoprimitive
module.exports = function (input, pref) {
  var fn, val;
  if (pref === 'string' && isCallable(fn = input.toString) && !isObject(val = call(fn, input))) return val;
  if (isCallable(fn = input.valueOf) && !isObject(val = call(fn, input))) return val;
  if (pref !== 'string' && isCallable(fn = input.toString) && !isObject(val = call(fn, input))) return val;
  throw TypeError("Can't convert object to primitive value");
};


/***/ }),

/***/ 3887:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var getBuiltIn = __webpack_require__(5005);
var uncurryThis = __webpack_require__(1702);
var getOwnPropertyNamesModule = __webpack_require__(8006);
var getOwnPropertySymbolsModule = __webpack_require__(5181);
var anObject = __webpack_require__(9670);

var concat = uncurryThis([].concat);

// all object keys, includes non-enumerable and symbols
module.exports = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {
  var keys = getOwnPropertyNamesModule.f(anObject(it));
  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
  return getOwnPropertySymbols ? concat(keys, getOwnPropertySymbols(it)) : keys;
};


/***/ }),

/***/ 2534:
/***/ (function(module) {

module.exports = function (exec) {
  try {
    return { error: false, value: exec() };
  } catch (error) {
    return { error: true, value: error };
  }
};


/***/ }),

/***/ 3702:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var NativePromiseConstructor = __webpack_require__(2492);
var isCallable = __webpack_require__(614);
var isForced = __webpack_require__(4705);
var inspectSource = __webpack_require__(2788);
var wellKnownSymbol = __webpack_require__(5112);
var IS_BROWSER = __webpack_require__(7871);
var IS_PURE = __webpack_require__(1913);
var V8_VERSION = __webpack_require__(7392);

var NativePromisePrototype = NativePromiseConstructor && NativePromiseConstructor.prototype;
var SPECIES = wellKnownSymbol('species');
var SUBCLASSING = false;
var NATIVE_PROMISE_REJECTION_EVENT = isCallable(global.PromiseRejectionEvent);

var FORCED_PROMISE_CONSTRUCTOR = isForced('Promise', function () {
  var PROMISE_CONSTRUCTOR_SOURCE = inspectSource(NativePromiseConstructor);
  var GLOBAL_CORE_JS_PROMISE = PROMISE_CONSTRUCTOR_SOURCE !== String(NativePromiseConstructor);
  // V8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables
  // https://bugs.chromium.org/p/chromium/issues/detail?id=830565
  // We can't detect it synchronously, so just check versions
  if (!GLOBAL_CORE_JS_PROMISE && V8_VERSION === 66) return true;
  // We need Promise#{ catch, finally } in the pure version for preventing prototype pollution
  if (IS_PURE && !(NativePromisePrototype['catch'] && NativePromisePrototype['finally'])) return true;
  // We can't use @@species feature detection in V8 since it causes
  // deoptimization and performance degradation
  // https://github.com/zloirock/core-js/issues/679
  if (V8_VERSION >= 51 && /native code/.test(PROMISE_CONSTRUCTOR_SOURCE)) return false;
  // Detect correctness of subclassing with @@species support
  var promise = new NativePromiseConstructor(function (resolve) { resolve(1); });
  var FakePromise = function (exec) {
    exec(function () { /* empty */ }, function () { /* empty */ });
  };
  var constructor = promise.constructor = {};
  constructor[SPECIES] = FakePromise;
  SUBCLASSING = promise.then(function () { /* empty */ }) instanceof FakePromise;
  if (!SUBCLASSING) return true;
  // Unhandled rejections tracking support, NodeJS Promise without it fails @@species test
  return !GLOBAL_CORE_JS_PROMISE && IS_BROWSER && !NATIVE_PROMISE_REJECTION_EVENT;
});

module.exports = {
  CONSTRUCTOR: FORCED_PROMISE_CONSTRUCTOR,
  REJECTION_EVENT: NATIVE_PROMISE_REJECTION_EVENT,
  SUBCLASSING: SUBCLASSING
};


/***/ }),

/***/ 2492:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);

module.exports = global.Promise;


/***/ }),

/***/ 9478:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var anObject = __webpack_require__(9670);
var isObject = __webpack_require__(111);
var newPromiseCapability = __webpack_require__(8523);

module.exports = function (C, x) {
  anObject(C);
  if (isObject(x) && x.constructor === C) return x;
  var promiseCapability = newPromiseCapability.f(C);
  var resolve = promiseCapability.resolve;
  resolve(x);
  return promiseCapability.promise;
};


/***/ }),

/***/ 612:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var NativePromiseConstructor = __webpack_require__(2492);
var checkCorrectnessOfIteration = __webpack_require__(7072);
var FORCED_PROMISE_CONSTRUCTOR = (__webpack_require__(3702).CONSTRUCTOR);

module.exports = FORCED_PROMISE_CONSTRUCTOR || !checkCorrectnessOfIteration(function (iterable) {
  NativePromiseConstructor.all(iterable).then(undefined, function () { /* empty */ });
});


/***/ }),

/***/ 8572:
/***/ (function(module) {

var Queue = function () {
  this.head = null;
  this.tail = null;
};

Queue.prototype = {
  add: function (item) {
    var entry = { item: item, next: null };
    if (this.head) this.tail.next = entry;
    else this.head = entry;
    this.tail = entry;
  },
  get: function () {
    var entry = this.head;
    if (entry) {
      this.head = entry.next;
      if (this.tail === entry) this.tail = null;
      return entry.item;
    }
  }
};

module.exports = Queue;


/***/ }),

/***/ 4488:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);

var TypeError = global.TypeError;

// `RequireObjectCoercible` abstract operation
// https://tc39.es/ecma262/#sec-requireobjectcoercible
module.exports = function (it) {
  if (it == undefined) throw TypeError("Can't call method on " + it);
  return it;
};


/***/ }),

/***/ 3505:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);

// eslint-disable-next-line es-x/no-object-defineproperty -- safe
var defineProperty = Object.defineProperty;

module.exports = function (key, value) {
  try {
    defineProperty(global, key, { value: value, configurable: true, writable: true });
  } catch (error) {
    global[key] = value;
  } return value;
};


/***/ }),

/***/ 6340:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var getBuiltIn = __webpack_require__(5005);
var definePropertyModule = __webpack_require__(3070);
var wellKnownSymbol = __webpack_require__(5112);
var DESCRIPTORS = __webpack_require__(9781);

var SPECIES = wellKnownSymbol('species');

module.exports = function (CONSTRUCTOR_NAME) {
  var Constructor = getBuiltIn(CONSTRUCTOR_NAME);
  var defineProperty = definePropertyModule.f;

  if (DESCRIPTORS && Constructor && !Constructor[SPECIES]) {
    defineProperty(Constructor, SPECIES, {
      configurable: true,
      get: function () { return this; }
    });
  }
};


/***/ }),

/***/ 8003:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var defineProperty = (__webpack_require__(3070).f);
var hasOwn = __webpack_require__(2597);
var wellKnownSymbol = __webpack_require__(5112);

var TO_STRING_TAG = wellKnownSymbol('toStringTag');

module.exports = function (target, TAG, STATIC) {
  if (target && !STATIC) target = target.prototype;
  if (target && !hasOwn(target, TO_STRING_TAG)) {
    defineProperty(target, TO_STRING_TAG, { configurable: true, value: TAG });
  }
};


/***/ }),

/***/ 6200:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var shared = __webpack_require__(2309);
var uid = __webpack_require__(9711);

var keys = shared('keys');

module.exports = function (key) {
  return keys[key] || (keys[key] = uid(key));
};


/***/ }),

/***/ 5465:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var setGlobal = __webpack_require__(3505);

var SHARED = '__core-js_shared__';
var store = global[SHARED] || setGlobal(SHARED, {});

module.exports = store;


/***/ }),

/***/ 2309:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var IS_PURE = __webpack_require__(1913);
var store = __webpack_require__(5465);

(module.exports = function (key, value) {
  return store[key] || (store[key] = value !== undefined ? value : {});
})('versions', []).push({
  version: '3.22.5',
  mode: IS_PURE ? 'pure' : 'global',
  copyright: '© 2014-2022 Denis Pushkarev (zloirock.ru)',
  license: 'https://github.com/zloirock/core-js/blob/v3.22.5/LICENSE',
  source: 'https://github.com/zloirock/core-js'
});


/***/ }),

/***/ 6707:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var anObject = __webpack_require__(9670);
var aConstructor = __webpack_require__(9483);
var wellKnownSymbol = __webpack_require__(5112);

var SPECIES = wellKnownSymbol('species');

// `SpeciesConstructor` abstract operation
// https://tc39.es/ecma262/#sec-speciesconstructor
module.exports = function (O, defaultConstructor) {
  var C = anObject(O).constructor;
  var S;
  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? defaultConstructor : aConstructor(S);
};


/***/ }),

/***/ 3111:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);
var requireObjectCoercible = __webpack_require__(4488);
var toString = __webpack_require__(1340);
var whitespaces = __webpack_require__(1361);

var replace = uncurryThis(''.replace);
var whitespace = '[' + whitespaces + ']';
var ltrim = RegExp('^' + whitespace + whitespace + '*');
var rtrim = RegExp(whitespace + whitespace + '*$');

// `String.prototype.{ trim, trimStart, trimEnd, trimLeft, trimRight }` methods implementation
var createMethod = function (TYPE) {
  return function ($this) {
    var string = toString(requireObjectCoercible($this));
    if (TYPE & 1) string = replace(string, ltrim, '');
    if (TYPE & 2) string = replace(string, rtrim, '');
    return string;
  };
};

module.exports = {
  // `String.prototype.{ trimLeft, trimStart }` methods
  // https://tc39.es/ecma262/#sec-string.prototype.trimstart
  start: createMethod(1),
  // `String.prototype.{ trimRight, trimEnd }` methods
  // https://tc39.es/ecma262/#sec-string.prototype.trimend
  end: createMethod(2),
  // `String.prototype.trim` method
  // https://tc39.es/ecma262/#sec-string.prototype.trim
  trim: createMethod(3)
};


/***/ }),

/***/ 261:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var apply = __webpack_require__(2104);
var bind = __webpack_require__(9974);
var isCallable = __webpack_require__(614);
var hasOwn = __webpack_require__(2597);
var fails = __webpack_require__(7293);
var html = __webpack_require__(490);
var arraySlice = __webpack_require__(206);
var createElement = __webpack_require__(317);
var validateArgumentsLength = __webpack_require__(8053);
var IS_IOS = __webpack_require__(6833);
var IS_NODE = __webpack_require__(5268);

var set = global.setImmediate;
var clear = global.clearImmediate;
var process = global.process;
var Dispatch = global.Dispatch;
var Function = global.Function;
var MessageChannel = global.MessageChannel;
var String = global.String;
var counter = 0;
var queue = {};
var ONREADYSTATECHANGE = 'onreadystatechange';
var location, defer, channel, port;

try {
  // Deno throws a ReferenceError on `location` access without `--location` flag
  location = global.location;
} catch (error) { /* empty */ }

var run = function (id) {
  if (hasOwn(queue, id)) {
    var fn = queue[id];
    delete queue[id];
    fn();
  }
};

var runner = function (id) {
  return function () {
    run(id);
  };
};

var listener = function (event) {
  run(event.data);
};

var post = function (id) {
  // old engines have not location.origin
  global.postMessage(String(id), location.protocol + '//' + location.host);
};

// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
if (!set || !clear) {
  set = function setImmediate(handler) {
    validateArgumentsLength(arguments.length, 1);
    var fn = isCallable(handler) ? handler : Function(handler);
    var args = arraySlice(arguments, 1);
    queue[++counter] = function () {
      apply(fn, undefined, args);
    };
    defer(counter);
    return counter;
  };
  clear = function clearImmediate(id) {
    delete queue[id];
  };
  // Node.js 0.8-
  if (IS_NODE) {
    defer = function (id) {
      process.nextTick(runner(id));
    };
  // Sphere (JS game engine) Dispatch API
  } else if (Dispatch && Dispatch.now) {
    defer = function (id) {
      Dispatch.now(runner(id));
    };
  // Browsers with MessageChannel, includes WebWorkers
  // except iOS - https://github.com/zloirock/core-js/issues/624
  } else if (MessageChannel && !IS_IOS) {
    channel = new MessageChannel();
    port = channel.port2;
    channel.port1.onmessage = listener;
    defer = bind(port.postMessage, port);
  // Browsers with postMessage, skip WebWorkers
  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
  } else if (
    global.addEventListener &&
    isCallable(global.postMessage) &&
    !global.importScripts &&
    location && location.protocol !== 'file:' &&
    !fails(post)
  ) {
    defer = post;
    global.addEventListener('message', listener, false);
  // IE8-
  } else if (ONREADYSTATECHANGE in createElement('script')) {
    defer = function (id) {
      html.appendChild(createElement('script'))[ONREADYSTATECHANGE] = function () {
        html.removeChild(this);
        run(id);
      };
    };
  // Rest old browsers
  } else {
    defer = function (id) {
      setTimeout(runner(id), 0);
    };
  }
}

module.exports = {
  set: set,
  clear: clear
};


/***/ }),

/***/ 863:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);

// `thisNumberValue` abstract operation
// https://tc39.es/ecma262/#sec-thisnumbervalue
module.exports = uncurryThis(1.0.valueOf);


/***/ }),

/***/ 1400:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var toIntegerOrInfinity = __webpack_require__(9303);

var max = Math.max;
var min = Math.min;

// Helper for a popular repeating case of the spec:
// Let integer be ? ToInteger(index).
// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).
module.exports = function (index, length) {
  var integer = toIntegerOrInfinity(index);
  return integer < 0 ? max(integer + length, 0) : min(integer, length);
};


/***/ }),

/***/ 5656:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

// toObject with fallback for non-array-like ES3 strings
var IndexedObject = __webpack_require__(8361);
var requireObjectCoercible = __webpack_require__(4488);

module.exports = function (it) {
  return IndexedObject(requireObjectCoercible(it));
};


/***/ }),

/***/ 9303:
/***/ (function(module) {

var ceil = Math.ceil;
var floor = Math.floor;

// `ToIntegerOrInfinity` abstract operation
// https://tc39.es/ecma262/#sec-tointegerorinfinity
module.exports = function (argument) {
  var number = +argument;
  // eslint-disable-next-line no-self-compare -- safe
  return number !== number || number === 0 ? 0 : (number > 0 ? floor : ceil)(number);
};


/***/ }),

/***/ 7466:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var toIntegerOrInfinity = __webpack_require__(9303);

var min = Math.min;

// `ToLength` abstract operation
// https://tc39.es/ecma262/#sec-tolength
module.exports = function (argument) {
  return argument > 0 ? min(toIntegerOrInfinity(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
};


/***/ }),

/***/ 7908:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var requireObjectCoercible = __webpack_require__(4488);

var Object = global.Object;

// `ToObject` abstract operation
// https://tc39.es/ecma262/#sec-toobject
module.exports = function (argument) {
  return Object(requireObjectCoercible(argument));
};


/***/ }),

/***/ 7593:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var call = __webpack_require__(6916);
var isObject = __webpack_require__(111);
var isSymbol = __webpack_require__(2190);
var getMethod = __webpack_require__(8173);
var ordinaryToPrimitive = __webpack_require__(2140);
var wellKnownSymbol = __webpack_require__(5112);

var TypeError = global.TypeError;
var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');

// `ToPrimitive` abstract operation
// https://tc39.es/ecma262/#sec-toprimitive
module.exports = function (input, pref) {
  if (!isObject(input) || isSymbol(input)) return input;
  var exoticToPrim = getMethod(input, TO_PRIMITIVE);
  var result;
  if (exoticToPrim) {
    if (pref === undefined) pref = 'default';
    result = call(exoticToPrim, input, pref);
    if (!isObject(result) || isSymbol(result)) return result;
    throw TypeError("Can't convert object to primitive value");
  }
  if (pref === undefined) pref = 'number';
  return ordinaryToPrimitive(input, pref);
};


/***/ }),

/***/ 4948:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var toPrimitive = __webpack_require__(7593);
var isSymbol = __webpack_require__(2190);

// `ToPropertyKey` abstract operation
// https://tc39.es/ecma262/#sec-topropertykey
module.exports = function (argument) {
  var key = toPrimitive(argument, 'string');
  return isSymbol(key) ? key : key + '';
};


/***/ }),

/***/ 1694:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var wellKnownSymbol = __webpack_require__(5112);

var TO_STRING_TAG = wellKnownSymbol('toStringTag');
var test = {};

test[TO_STRING_TAG] = 'z';

module.exports = String(test) === '[object z]';


/***/ }),

/***/ 1340:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var classof = __webpack_require__(648);

var String = global.String;

module.exports = function (argument) {
  if (classof(argument) === 'Symbol') throw TypeError('Cannot convert a Symbol value to a string');
  return String(argument);
};


/***/ }),

/***/ 6330:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);

var String = global.String;

module.exports = function (argument) {
  try {
    return String(argument);
  } catch (error) {
    return 'Object';
  }
};


/***/ }),

/***/ 9711:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var uncurryThis = __webpack_require__(1702);

var id = 0;
var postfix = Math.random();
var toString = uncurryThis(1.0.toString);

module.exports = function (key) {
  return 'Symbol(' + (key === undefined ? '' : key) + ')_' + toString(++id + postfix, 36);
};


/***/ }),

/***/ 3307:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

/* eslint-disable es-x/no-symbol -- required for testing */
var NATIVE_SYMBOL = __webpack_require__(133);

module.exports = NATIVE_SYMBOL
  && !Symbol.sham
  && typeof Symbol.iterator == 'symbol';


/***/ }),

/***/ 3353:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var DESCRIPTORS = __webpack_require__(9781);
var fails = __webpack_require__(7293);

// V8 ~ Chrome 36-
// https://bugs.chromium.org/p/v8/issues/detail?id=3334
module.exports = DESCRIPTORS && fails(function () {
  // eslint-disable-next-line es-x/no-object-defineproperty -- required for testing
  return Object.defineProperty(function () { /* empty */ }, 'prototype', {
    value: 42,
    writable: false
  }).prototype != 42;
});


/***/ }),

/***/ 8053:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);

var TypeError = global.TypeError;

module.exports = function (passed, required) {
  if (passed < required) throw TypeError('Not enough arguments');
  return passed;
};


/***/ }),

/***/ 5112:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

var global = __webpack_require__(7854);
var shared = __webpack_require__(2309);
var hasOwn = __webpack_require__(2597);
var uid = __webpack_require__(9711);
var NATIVE_SYMBOL = __webpack_require__(133);
var USE_SYMBOL_AS_UID = __webpack_require__(3307);

var WellKnownSymbolsStore = shared('wks');
var Symbol = global.Symbol;
var symbolFor = Symbol && Symbol['for'];
var createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol : Symbol && Symbol.withoutSetter || uid;

module.exports = function (name) {
  if (!hasOwn(WellKnownSymbolsStore, name) || !(NATIVE_SYMBOL || typeof WellKnownSymbolsStore[name] == 'string')) {
    var description = 'Symbol.' + name;
    if (NATIVE_SYMBOL && hasOwn(Symbol, name)) {
      WellKnownSymbolsStore[name] = Symbol[name];
    } else if (USE_SYMBOL_AS_UID && symbolFor) {
      WellKnownSymbolsStore[name] = symbolFor(description);
    } else {
      WellKnownSymbolsStore[name] = createWellKnownSymbol(description);
    }
  } return WellKnownSymbolsStore[name];
};


/***/ }),

/***/ 1361:
/***/ (function(module) {

// a string of all valid unicode whitespaces
module.exports = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u2000\u2001\u2002' +
  '\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';


/***/ }),

/***/ 2222:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var $ = __webpack_require__(2109);
var global = __webpack_require__(7854);
var fails = __webpack_require__(7293);
var isArray = __webpack_require__(3157);
var isObject = __webpack_require__(111);
var toObject = __webpack_require__(7908);
var lengthOfArrayLike = __webpack_require__(6244);
var createProperty = __webpack_require__(6135);
var arraySpeciesCreate = __webpack_require__(5417);
var arrayMethodHasSpeciesSupport = __webpack_require__(1194);
var wellKnownSymbol = __webpack_require__(5112);
var V8_VERSION = __webpack_require__(7392);

var IS_CONCAT_SPREADABLE = wellKnownSymbol('isConcatSpreadable');
var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
var MAXIMUM_ALLOWED_INDEX_EXCEEDED = 'Maximum allowed index exceeded';
var TypeError = global.TypeError;

// We can't use this feature detection in V8 since it causes
// deoptimization and serious performance degradation
// https://github.com/zloirock/core-js/issues/679
var IS_CONCAT_SPREADABLE_SUPPORT = V8_VERSION >= 51 || !fails(function () {
  var array = [];
  array[IS_CONCAT_SPREADABLE] = false;
  return array.concat()[0] !== array;
});

var SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('concat');

var isConcatSpreadable = function (O) {
  if (!isObject(O)) return false;
  var spreadable = O[IS_CONCAT_SPREADABLE];
  return spreadable !== undefined ? !!spreadable : isArray(O);
};

var FORCED = !IS_CONCAT_SPREADABLE_SUPPORT || !SPECIES_SUPPORT;

// `Array.prototype.concat` method
// https://tc39.es/ecma262/#sec-array.prototype.concat
// with adding support of @@isConcatSpreadable and @@species
$({ target: 'Array', proto: true, arity: 1, forced: FORCED }, {
  // eslint-disable-next-line no-unused-vars -- required for `.length`
  concat: function concat(arg) {
    var O = toObject(this);
    var A = arraySpeciesCreate(O, 0);
    var n = 0;
    var i, k, length, len, E;
    for (i = -1, length = arguments.length; i < length; i++) {
      E = i === -1 ? O : arguments[i];
      if (isConcatSpreadable(E)) {
        len = lengthOfArrayLike(E);
        if (n + len > MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);
        for (k = 0; k < len; k++, n++) if (k in E) createProperty(A, n, E[k]);
      } else {
        if (n >= MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);
        createProperty(A, n++, E);
      }
    }
    A.length = n;
    return A;
  }
});


/***/ }),

/***/ 3290:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

var $ = __webpack_require__(2109);
var fill = __webpack_require__(1285);
var addToUnscopables = __webpack_require__(1223);

// `Array.prototype.fill` method
// https://tc39.es/ecma262/#sec-array.prototype.fill
$({ target: 'Array', proto: true }, {
  fill: fill
});

// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('fill');


/***/ }),

/***/ 8309:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

var DESCRIPTORS = __webpack_require__(9781);
var FUNCTION_NAME_EXISTS = (__webpack_require__(6530).EXISTS);
var uncurryThis = __webpack_require__(1702);
var defineProperty = (__webpack_require__(3070).f);

var FunctionPrototype = Function.prototype;
var functionToString = uncurryThis(FunctionPrototype.toString);
var nameRE = /function\b(?:\s|\/\*[\S\s]*?\*\/|\/\/[^\n\r]*[\n\r]+)*([^\s(/]*)/;
var regExpExec = uncurryThis(nameRE.exec);
var NAME = 'name';

// Function instances `.name` property
// https://tc39.es/ecma262/#sec-function-instances-name
if (DESCRIPTORS && !FUNCTION_NAME_EXISTS) {
  defineProperty(FunctionPrototype, NAME, {
    configurable: true,
    get: function () {
      try {
        return regExpExec(nameRE, functionToString(this))[1];
      } catch (error) {
        return '';
      }
    }
  });
}


/***/ }),

/***/ 9653:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var DESCRIPTORS = __webpack_require__(9781);
var global = __webpack_require__(7854);
var uncurryThis = __webpack_require__(1702);
var isForced = __webpack_require__(4705);
var defineBuiltIn = __webpack_require__(8052);
var hasOwn = __webpack_require__(2597);
var inheritIfRequired = __webpack_require__(9587);
var isPrototypeOf = __webpack_require__(7976);
var isSymbol = __webpack_require__(2190);
var toPrimitive = __webpack_require__(7593);
var fails = __webpack_require__(7293);
var getOwnPropertyNames = (__webpack_require__(8006).f);
var getOwnPropertyDescriptor = (__webpack_require__(1236).f);
var defineProperty = (__webpack_require__(3070).f);
var thisNumberValue = __webpack_require__(863);
var trim = (__webpack_require__(3111).trim);

var NUMBER = 'Number';
var NativeNumber = global[NUMBER];
var NumberPrototype = NativeNumber.prototype;
var TypeError = global.TypeError;
var arraySlice = uncurryThis(''.slice);
var charCodeAt = uncurryThis(''.charCodeAt);

// `ToNumeric` abstract operation
// https://tc39.es/ecma262/#sec-tonumeric
var toNumeric = function (value) {
  var primValue = toPrimitive(value, 'number');
  return typeof primValue == 'bigint' ? primValue : toNumber(primValue);
};

// `ToNumber` abstract operation
// https://tc39.es/ecma262/#sec-tonumber
var toNumber = function (argument) {
  var it = toPrimitive(argument, 'number');
  var first, third, radix, maxCode, digits, length, index, code;
  if (isSymbol(it)) throw TypeError('Cannot convert a Symbol value to a number');
  if (typeof it == 'string' && it.length > 2) {
    it = trim(it);
    first = charCodeAt(it, 0);
    if (first === 43 || first === 45) {
      third = charCodeAt(it, 2);
      if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix
    } else if (first === 48) {
      switch (charCodeAt(it, 1)) {
        case 66: case 98: radix = 2; maxCode = 49; break; // fast equal of /^0b[01]+$/i
        case 79: case 111: radix = 8; maxCode = 55; break; // fast equal of /^0o[0-7]+$/i
        default: return +it;
      }
      digits = arraySlice(it, 2);
      length = digits.length;
      for (index = 0; index < length; index++) {
        code = charCodeAt(digits, index);
        // parseInt parses a string to a first unavailable symbol
        // but ToNumber should return NaN if a string contains unavailable symbols
        if (code < 48 || code > maxCode) return NaN;
      } return parseInt(digits, radix);
    }
  } return +it;
};

// `Number` constructor
// https://tc39.es/ecma262/#sec-number-constructor
if (isForced(NUMBER, !NativeNumber(' 0o1') || !NativeNumber('0b1') || NativeNumber('+0x1'))) {
  var NumberWrapper = function Number(value) {
    var n = arguments.length < 1 ? 0 : NativeNumber(toNumeric(value));
    var dummy = this;
    // check on 1..constructor(foo) case
    return isPrototypeOf(NumberPrototype, dummy) && fails(function () { thisNumberValue(dummy); })
      ? inheritIfRequired(Object(n), dummy, NumberWrapper) : n;
  };
  for (var keys = DESCRIPTORS ? getOwnPropertyNames(NativeNumber) : (
    // ES3:
    'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +
    // ES2015 (in case, if modules with ES2015 Number statics required before):
    'EPSILON,MAX_SAFE_INTEGER,MIN_SAFE_INTEGER,isFinite,isInteger,isNaN,isSafeInteger,parseFloat,parseInt,' +
    // ESNext
    'fromString,range'
  ).split(','), j = 0, key; keys.length > j; j++) {
    if (hasOwn(NativeNumber, key = keys[j]) && !hasOwn(NumberWrapper, key)) {
      defineProperty(NumberWrapper, key, getOwnPropertyDescriptor(NativeNumber, key));
    }
  }
  NumberWrapper.prototype = NumberPrototype;
  NumberPrototype.constructor = NumberWrapper;
  defineBuiltIn(global, NUMBER, NumberWrapper, { constructor: true });
}


/***/ }),

/***/ 9601:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

var $ = __webpack_require__(2109);
var assign = __webpack_require__(1574);

// `Object.assign` method
// https://tc39.es/ecma262/#sec-object.assign
// eslint-disable-next-line es-x/no-object-assign -- required for testing
$({ target: 'Object', stat: true, arity: 2, forced: Object.assign !== assign }, {
  assign: assign
});


/***/ }),

/***/ 1539:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

var TO_STRING_TAG_SUPPORT = __webpack_require__(1694);
var defineBuiltIn = __webpack_require__(8052);
var toString = __webpack_require__(288);

// `Object.prototype.toString` method
// https://tc39.es/ecma262/#sec-object.prototype.tostring
if (!TO_STRING_TAG_SUPPORT) {
  defineBuiltIn(Object.prototype, 'toString', toString, { unsafe: true });
}


/***/ }),

/***/ 821:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var $ = __webpack_require__(2109);
var call = __webpack_require__(6916);
var aCallable = __webpack_require__(9662);
var newPromiseCapabilityModule = __webpack_require__(8523);
var perform = __webpack_require__(2534);
var iterate = __webpack_require__(408);
var PROMISE_STATICS_INCORRECT_ITERATION = __webpack_require__(612);

// `Promise.all` method
// https://tc39.es/ecma262/#sec-promise.all
$({ target: 'Promise', stat: true, forced: PROMISE_STATICS_INCORRECT_ITERATION }, {
  all: function all(iterable) {
    var C = this;
    var capability = newPromiseCapabilityModule.f(C);
    var resolve = capability.resolve;
    var reject = capability.reject;
    var result = perform(function () {
      var $promiseResolve = aCallable(C.resolve);
      var values = [];
      var counter = 0;
      var remaining = 1;
      iterate(iterable, function (promise) {
        var index = counter++;
        var alreadyCalled = false;
        remaining++;
        call($promiseResolve, C, promise).then(function (value) {
          if (alreadyCalled) return;
          alreadyCalled = true;
          values[index] = value;
          --remaining || resolve(values);
        }, reject);
      });
      --remaining || resolve(values);
    });
    if (result.error) reject(result.value);
    return capability.promise;
  }
});


/***/ }),

/***/ 4164:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var $ = __webpack_require__(2109);
var IS_PURE = __webpack_require__(1913);
var FORCED_PROMISE_CONSTRUCTOR = (__webpack_require__(3702).CONSTRUCTOR);
var NativePromiseConstructor = __webpack_require__(2492);
var getBuiltIn = __webpack_require__(5005);
var isCallable = __webpack_require__(614);
var defineBuiltIn = __webpack_require__(8052);

var NativePromisePrototype = NativePromiseConstructor && NativePromiseConstructor.prototype;

// `Promise.prototype.catch` method
// https://tc39.es/ecma262/#sec-promise.prototype.catch
$({ target: 'Promise', proto: true, forced: FORCED_PROMISE_CONSTRUCTOR, real: true }, {
  'catch': function (onRejected) {
    return this.then(undefined, onRejected);
  }
});

// makes sure that native promise-based APIs `Promise#catch` properly works with patched `Promise#then`
if (!IS_PURE && isCallable(NativePromiseConstructor)) {
  var method = getBuiltIn('Promise').prototype['catch'];
  if (NativePromisePrototype['catch'] !== method) {
    defineBuiltIn(NativePromisePrototype, 'catch', method, { unsafe: true });
  }
}


/***/ }),

/***/ 3401:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var $ = __webpack_require__(2109);
var IS_PURE = __webpack_require__(1913);
var IS_NODE = __webpack_require__(5268);
var global = __webpack_require__(7854);
var call = __webpack_require__(6916);
var defineBuiltIn = __webpack_require__(8052);
var setPrototypeOf = __webpack_require__(7674);
var setToStringTag = __webpack_require__(8003);
var setSpecies = __webpack_require__(6340);
var aCallable = __webpack_require__(9662);
var isCallable = __webpack_require__(614);
var isObject = __webpack_require__(111);
var anInstance = __webpack_require__(5787);
var speciesConstructor = __webpack_require__(6707);
var task = (__webpack_require__(261).set);
var microtask = __webpack_require__(5948);
var hostReportErrors = __webpack_require__(842);
var perform = __webpack_require__(2534);
var Queue = __webpack_require__(8572);
var InternalStateModule = __webpack_require__(9909);
var NativePromiseConstructor = __webpack_require__(2492);
var PromiseConstructorDetection = __webpack_require__(3702);
var newPromiseCapabilityModule = __webpack_require__(8523);

var PROMISE = 'Promise';
var FORCED_PROMISE_CONSTRUCTOR = PromiseConstructorDetection.CONSTRUCTOR;
var NATIVE_PROMISE_REJECTION_EVENT = PromiseConstructorDetection.REJECTION_EVENT;
var NATIVE_PROMISE_SUBCLASSING = PromiseConstructorDetection.SUBCLASSING;
var getInternalPromiseState = InternalStateModule.getterFor(PROMISE);
var setInternalState = InternalStateModule.set;
var NativePromisePrototype = NativePromiseConstructor && NativePromiseConstructor.prototype;
var PromiseConstructor = NativePromiseConstructor;
var PromisePrototype = NativePromisePrototype;
var TypeError = global.TypeError;
var document = global.document;
var process = global.process;
var newPromiseCapability = newPromiseCapabilityModule.f;
var newGenericPromiseCapability = newPromiseCapability;

var DISPATCH_EVENT = !!(document && document.createEvent && global.dispatchEvent);
var UNHANDLED_REJECTION = 'unhandledrejection';
var REJECTION_HANDLED = 'rejectionhandled';
var PENDING = 0;
var FULFILLED = 1;
var REJECTED = 2;
var HANDLED = 1;
var UNHANDLED = 2;

var Internal, OwnPromiseCapability, PromiseWrapper, nativeThen;

// helpers
var isThenable = function (it) {
  var then;
  return isObject(it) && isCallable(then = it.then) ? then : false;
};

var callReaction = function (reaction, state) {
  var value = state.value;
  var ok = state.state == FULFILLED;
  var handler = ok ? reaction.ok : reaction.fail;
  var resolve = reaction.resolve;
  var reject = reaction.reject;
  var domain = reaction.domain;
  var result, then, exited;
  try {
    if (handler) {
      if (!ok) {
        if (state.rejection === UNHANDLED) onHandleUnhandled(state);
        state.rejection = HANDLED;
      }
      if (handler === true) result = value;
      else {
        if (domain) domain.enter();
        result = handler(value); // can throw
        if (domain) {
          domain.exit();
          exited = true;
        }
      }
      if (result === reaction.promise) {
        reject(TypeError('Promise-chain cycle'));
      } else if (then = isThenable(result)) {
        call(then, result, resolve, reject);
      } else resolve(result);
    } else reject(value);
  } catch (error) {
    if (domain && !exited) domain.exit();
    reject(error);
  }
};

var notify = function (state, isReject) {
  if (state.notified) return;
  state.notified = true;
  microtask(function () {
    var reactions = state.reactions;
    var reaction;
    while (reaction = reactions.get()) {
      callReaction(reaction, state);
    }
    state.notified = false;
    if (isReject && !state.rejection) onUnhandled(state);
  });
};

var dispatchEvent = function (name, promise, reason) {
  var event, handler;
  if (DISPATCH_EVENT) {
    event = document.createEvent('Event');
    event.promise = promise;
    event.reason = reason;
    event.initEvent(name, false, true);
    global.dispatchEvent(event);
  } else event = { promise: promise, reason: reason };
  if (!NATIVE_PROMISE_REJECTION_EVENT && (handler = global['on' + name])) handler(event);
  else if (name === UNHANDLED_REJECTION) hostReportErrors('Unhandled promise rejection', reason);
};

var onUnhandled = function (state) {
  call(task, global, function () {
    var promise = state.facade;
    var value = state.value;
    var IS_UNHANDLED = isUnhandled(state);
    var result;
    if (IS_UNHANDLED) {
      result = perform(function () {
        if (IS_NODE) {
          process.emit('unhandledRejection', value, promise);
        } else dispatchEvent(UNHANDLED_REJECTION, promise, value);
      });
      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should
      state.rejection = IS_NODE || isUnhandled(state) ? UNHANDLED : HANDLED;
      if (result.error) throw result.value;
    }
  });
};

var isUnhandled = function (state) {
  return state.rejection !== HANDLED && !state.parent;
};

var onHandleUnhandled = function (state) {
  call(task, global, function () {
    var promise = state.facade;
    if (IS_NODE) {
      process.emit('rejectionHandled', promise);
    } else dispatchEvent(REJECTION_HANDLED, promise, state.value);
  });
};

var bind = function (fn, state, unwrap) {
  return function (value) {
    fn(state, value, unwrap);
  };
};

var internalReject = function (state, value, unwrap) {
  if (state.done) return;
  state.done = true;
  if (unwrap) state = unwrap;
  state.value = value;
  state.state = REJECTED;
  notify(state, true);
};

var internalResolve = function (state, value, unwrap) {
  if (state.done) return;
  state.done = true;
  if (unwrap) state = unwrap;
  try {
    if (state.facade === value) throw TypeError("Promise can't be resolved itself");
    var then = isThenable(value);
    if (then) {
      microtask(function () {
        var wrapper = { done: false };
        try {
          call(then, value,
            bind(internalResolve, wrapper, state),
            bind(internalReject, wrapper, state)
          );
        } catch (error) {
          internalReject(wrapper, error, state);
        }
      });
    } else {
      state.value = value;
      state.state = FULFILLED;
      notify(state, false);
    }
  } catch (error) {
    internalReject({ done: false }, error, state);
  }
};

// constructor polyfill
if (FORCED_PROMISE_CONSTRUCTOR) {
  // 25.4.3.1 Promise(executor)
  PromiseConstructor = function Promise(executor) {
    anInstance(this, PromisePrototype);
    aCallable(executor);
    call(Internal, this);
    var state = getInternalPromiseState(this);
    try {
      executor(bind(internalResolve, state), bind(internalReject, state));
    } catch (error) {
      internalReject(state, error);
    }
  };

  PromisePrototype = PromiseConstructor.prototype;

  // eslint-disable-next-line no-unused-vars -- required for `.length`
  Internal = function Promise(executor) {
    setInternalState(this, {
      type: PROMISE,
      done: false,
      notified: false,
      parent: false,
      reactions: new Queue(),
      rejection: false,
      state: PENDING,
      value: undefined
    });
  };

  // `Promise.prototype.then` method
  // https://tc39.es/ecma262/#sec-promise.prototype.then
  Internal.prototype = defineBuiltIn(PromisePrototype, 'then', function then(onFulfilled, onRejected) {
    var state = getInternalPromiseState(this);
    var reaction = newPromiseCapability(speciesConstructor(this, PromiseConstructor));
    state.parent = true;
    reaction.ok = isCallable(onFulfilled) ? onFulfilled : true;
    reaction.fail = isCallable(onRejected) && onRejected;
    reaction.domain = IS_NODE ? process.domain : undefined;
    if (state.state == PENDING) state.reactions.add(reaction);
    else microtask(function () {
      callReaction(reaction, state);
    });
    return reaction.promise;
  });

  OwnPromiseCapability = function () {
    var promise = new Internal();
    var state = getInternalPromiseState(promise);
    this.promise = promise;
    this.resolve = bind(internalResolve, state);
    this.reject = bind(internalReject, state);
  };

  newPromiseCapabilityModule.f = newPromiseCapability = function (C) {
    return C === PromiseConstructor || C === PromiseWrapper
      ? new OwnPromiseCapability(C)
      : newGenericPromiseCapability(C);
  };

  if (!IS_PURE && isCallable(NativePromiseConstructor) && NativePromisePrototype !== Object.prototype) {
    nativeThen = NativePromisePrototype.then;

    if (!NATIVE_PROMISE_SUBCLASSING) {
      // make `Promise#then` return a polyfilled `Promise` for native promise-based APIs
      defineBuiltIn(NativePromisePrototype, 'then', function then(onFulfilled, onRejected) {
        var that = this;
        return new PromiseConstructor(function (resolve, reject) {
          call(nativeThen, that, resolve, reject);
        }).then(onFulfilled, onRejected);
      // https://github.com/zloirock/core-js/issues/640
      }, { unsafe: true });
    }

    // make `.constructor === Promise` work for native promise-based APIs
    try {
      delete NativePromisePrototype.constructor;
    } catch (error) { /* empty */ }

    // make `instanceof Promise` work for native promise-based APIs
    if (setPrototypeOf) {
      setPrototypeOf(NativePromisePrototype, PromisePrototype);
    }
  }
}

$({ global: true, constructor: true, wrap: true, forced: FORCED_PROMISE_CONSTRUCTOR }, {
  Promise: PromiseConstructor
});

setToStringTag(PromiseConstructor, PROMISE, false, true);
setSpecies(PROMISE);


/***/ }),

/***/ 8674:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

// TODO: Remove this module from `core-js@4` since it's split to modules listed below
__webpack_require__(3401);
__webpack_require__(821);
__webpack_require__(4164);
__webpack_require__(6027);
__webpack_require__(683);
__webpack_require__(6294);


/***/ }),

/***/ 6027:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var $ = __webpack_require__(2109);
var call = __webpack_require__(6916);
var aCallable = __webpack_require__(9662);
var newPromiseCapabilityModule = __webpack_require__(8523);
var perform = __webpack_require__(2534);
var iterate = __webpack_require__(408);
var PROMISE_STATICS_INCORRECT_ITERATION = __webpack_require__(612);

// `Promise.race` method
// https://tc39.es/ecma262/#sec-promise.race
$({ target: 'Promise', stat: true, forced: PROMISE_STATICS_INCORRECT_ITERATION }, {
  race: function race(iterable) {
    var C = this;
    var capability = newPromiseCapabilityModule.f(C);
    var reject = capability.reject;
    var result = perform(function () {
      var $promiseResolve = aCallable(C.resolve);
      iterate(iterable, function (promise) {
        call($promiseResolve, C, promise).then(capability.resolve, reject);
      });
    });
    if (result.error) reject(result.value);
    return capability.promise;
  }
});


/***/ }),

/***/ 683:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var $ = __webpack_require__(2109);
var call = __webpack_require__(6916);
var newPromiseCapabilityModule = __webpack_require__(8523);
var FORCED_PROMISE_CONSTRUCTOR = (__webpack_require__(3702).CONSTRUCTOR);

// `Promise.reject` method
// https://tc39.es/ecma262/#sec-promise.reject
$({ target: 'Promise', stat: true, forced: FORCED_PROMISE_CONSTRUCTOR }, {
  reject: function reject(r) {
    var capability = newPromiseCapabilityModule.f(this);
    call(capability.reject, undefined, r);
    return capability.promise;
  }
});


/***/ }),

/***/ 6294:
/***/ (function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {

"use strict";

var $ = __webpack_require__(2109);
var getBuiltIn = __webpack_require__(5005);
var IS_PURE = __webpack_require__(1913);
var NativePromiseConstructor = __webpack_require__(2492);
var FORCED_PROMISE_CONSTRUCTOR = (__webpack_require__(3702).CONSTRUCTOR);
var promiseResolve = __webpack_require__(9478);

var PromiseConstructorWrapper = getBuiltIn('Promise');
var CHECK_WRAPPER = IS_PURE && !FORCED_PROMISE_CONSTRUCTOR;

// `Promise.resolve` method
// https://tc39.es/ecma262/#sec-promise.resolve
$({ target: 'Promise', stat: true, forced: IS_PURE || FORCED_PROMISE_CONSTRUCTOR }, {
  resolve: function resolve(x) {
    return promiseResolve(CHECK_WRAPPER && this === PromiseConstructorWrapper ? NativePromiseConstructor : this, x);
  }
});


/***/ }),

/***/ 4931:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _node_modules_css_loader_dist_runtime_noSourceMaps_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(8081);
/* harmony import */ var _node_modules_css_loader_dist_runtime_noSourceMaps_js__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_node_modules_css_loader_dist_runtime_noSourceMaps_js__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _node_modules_css_loader_dist_runtime_api_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(3645);
/* harmony import */ var _node_modules_css_loader_dist_runtime_api_js__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(_node_modules_css_loader_dist_runtime_api_js__WEBPACK_IMPORTED_MODULE_1__);
// Imports


var ___CSS_LOADER_EXPORT___ = _node_modules_css_loader_dist_runtime_api_js__WEBPACK_IMPORTED_MODULE_1___default()((_node_modules_css_loader_dist_runtime_noSourceMaps_js__WEBPACK_IMPORTED_MODULE_0___default()));
// Module
___CSS_LOADER_EXPORT___.push([module.id, ".scroll-wrapper[data-v-45828462]{height:100%;width:100%;overflow:hidden}.scroll-loading[data-v-45828462]{width:20px;height:20px}.pulldown-wrapper[data-v-45828462]{position:absolute;width:100%;left:0;display:flex;justify-content:center;align-items:center;transition:all}.pulldown-wrapper .after-trigger[data-v-45828462]{margin-top:10px}.pullup-wrapper[data-v-45828462]{width:100%;display:flex;justify-content:center;align-items:center;padding:16px 0}", ""]);
// Exports
/* harmony default export */ __webpack_exports__["default"] = (___CSS_LOADER_EXPORT___);


/***/ }),

/***/ 3645:
/***/ (function(module) {

"use strict";


/*
  MIT License http://www.opensource.org/licenses/mit-license.php
  Author Tobias Koppers @sokra
*/
module.exports = function (cssWithMappingToString) {
  var list = []; // return the list of modules as css string

  list.toString = function toString() {
    return this.map(function (item) {
      var content = "";
      var needLayer = typeof item[5] !== "undefined";

      if (item[4]) {
        content += "@supports (".concat(item[4], ") {");
      }

      if (item[2]) {
        content += "@media ".concat(item[2], " {");
      }

      if (needLayer) {
        content += "@layer".concat(item[5].length > 0 ? " ".concat(item[5]) : "", " {");
      }

      content += cssWithMappingToString(item);

      if (needLayer) {
        content += "}";
      }

      if (item[2]) {
        content += "}";
      }

      if (item[4]) {
        content += "}";
      }

      return content;
    }).join("");
  }; // import a list of modules into the list


  list.i = function i(modules, media, dedupe, supports, layer) {
    if (typeof modules === "string") {
      modules = [[null, modules, undefined]];
    }

    var alreadyImportedModules = {};

    if (dedupe) {
      for (var k = 0; k < this.length; k++) {
        var id = this[k][0];

        if (id != null) {
          alreadyImportedModules[id] = true;
        }
      }
    }

    for (var _k = 0; _k < modules.length; _k++) {
      var item = [].concat(modules[_k]);

      if (dedupe && alreadyImportedModules[item[0]]) {
        continue;
      }

      if (typeof layer !== "undefined") {
        if (typeof item[5] === "undefined") {
          item[5] = layer;
        } else {
          item[1] = "@layer".concat(item[5].length > 0 ? " ".concat(item[5]) : "", " {").concat(item[1], "}");
          item[5] = layer;
        }
      }

      if (media) {
        if (!item[2]) {
          item[2] = media;
        } else {
          item[1] = "@media ".concat(item[2], " {").concat(item[1], "}");
          item[2] = media;
        }
      }

      if (supports) {
        if (!item[4]) {
          item[4] = "".concat(supports);
        } else {
          item[1] = "@supports (".concat(item[4], ") {").concat(item[1], "}");
          item[4] = supports;
        }
      }

      list.push(item);
    }
  };

  return list;
};

/***/ }),

/***/ 8081:
/***/ (function(module) {

"use strict";


module.exports = function (i) {
  return i[1];
};

/***/ }),

/***/ 5650:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

// style-loader: Adds some css to the DOM by adding a <style> tag

// load the styles
var content = __webpack_require__(4931);
if(content.__esModule) content = content.default;
if(typeof content === 'string') content = [[module.id, content, '']];
if(content.locals) module.exports = content.locals;
// add the styles to the DOM
var add = (__webpack_require__(4402)/* ["default"] */ .Z)
var update = add("19457ba0", content, true, {"sourceMap":false,"shadowMode":false});

/***/ }),

/***/ 4402:
/***/ (function(__unused_webpack_module, __webpack_exports__, __webpack_require__) {

"use strict";

// EXPORTS
__webpack_require__.d(__webpack_exports__, {
  "Z": function() { return /* binding */ addStylesClient; }
});

;// CONCATENATED MODULE: ./node_modules/vue-style-loader/lib/listToStyles.js
/**
 * Translates the list format produced by css-loader into something
 * easier to manipulate.
 */
function listToStyles (parentId, list) {
  var styles = []
  var newStyles = {}
  for (var i = 0; i < list.length; i++) {
    var item = list[i]
    var id = item[0]
    var css = item[1]
    var media = item[2]
    var sourceMap = item[3]
    var part = {
      id: parentId + ':' + i,
      css: css,
      media: media,
      sourceMap: sourceMap
    }
    if (!newStyles[id]) {
      styles.push(newStyles[id] = { id: id, parts: [part] })
    } else {
      newStyles[id].parts.push(part)
    }
  }
  return styles
}

;// CONCATENATED MODULE: ./node_modules/vue-style-loader/lib/addStylesClient.js
/*
  MIT License http://www.opensource.org/licenses/mit-license.php
  Author Tobias Koppers @sokra
  Modified by Evan You @yyx990803
*/



var hasDocument = typeof document !== 'undefined'

if (typeof DEBUG !== 'undefined' && DEBUG) {
  if (!hasDocument) {
    throw new Error(
    'vue-style-loader cannot be used in a non-browser environment. ' +
    "Use { target: 'node' } in your Webpack config to indicate a server-rendering environment."
  ) }
}

/*
type StyleObject = {
  id: number;
  parts: Array<StyleObjectPart>
}

type StyleObjectPart = {
  css: string;
  media: string;
  sourceMap: ?string
}
*/

var stylesInDom = {/*
  [id: number]: {
    id: number,
    refs: number,
    parts: Array<(obj?: StyleObjectPart) => void>
  }
*/}

var head = hasDocument && (document.head || document.getElementsByTagName('head')[0])
var singletonElement = null
var singletonCounter = 0
var isProduction = false
var noop = function () {}
var options = null
var ssrIdKey = 'data-vue-ssr-id'

// Force single-tag solution on IE6-9, which has a hard limit on the # of <style>
// tags it will allow on a page
var isOldIE = typeof navigator !== 'undefined' && /msie [6-9]\b/.test(navigator.userAgent.toLowerCase())

function addStylesClient (parentId, list, _isProduction, _options) {
  isProduction = _isProduction

  options = _options || {}

  var styles = listToStyles(parentId, list)
  addStylesToDom(styles)

  return function update (newList) {
    var mayRemove = []
    for (var i = 0; i < styles.length; i++) {
      var item = styles[i]
      var domStyle = stylesInDom[item.id]
      domStyle.refs--
      mayRemove.push(domStyle)
    }
    if (newList) {
      styles = listToStyles(parentId, newList)
      addStylesToDom(styles)
    } else {
      styles = []
    }
    for (var i = 0; i < mayRemove.length; i++) {
      var domStyle = mayRemove[i]
      if (domStyle.refs === 0) {
        for (var j = 0; j < domStyle.parts.length; j++) {
          domStyle.parts[j]()
        }
        delete stylesInDom[domStyle.id]
      }
    }
  }
}

function addStylesToDom (styles /* Array<StyleObject> */) {
  for (var i = 0; i < styles.length; i++) {
    var item = styles[i]
    var domStyle = stylesInDom[item.id]
    if (domStyle) {
      domStyle.refs++
      for (var j = 0; j < domStyle.parts.length; j++) {
        domStyle.parts[j](item.parts[j])
      }
      for (; j < item.parts.length; j++) {
        domStyle.parts.push(addStyle(item.parts[j]))
      }
      if (domStyle.parts.length > item.parts.length) {
        domStyle.parts.length = item.parts.length
      }
    } else {
      var parts = []
      for (var j = 0; j < item.parts.length; j++) {
        parts.push(addStyle(item.parts[j]))
      }
      stylesInDom[item.id] = { id: item.id, refs: 1, parts: parts }
    }
  }
}

function createStyleElement () {
  var styleElement = document.createElement('style')
  styleElement.type = 'text/css'
  head.appendChild(styleElement)
  return styleElement
}

function addStyle (obj /* StyleObjectPart */) {
  var update, remove
  var styleElement = document.querySelector('style[' + ssrIdKey + '~="' + obj.id + '"]')

  if (styleElement) {
    if (isProduction) {
      // has SSR styles and in production mode.
      // simply do nothing.
      return noop
    } else {
      // has SSR styles but in dev mode.
      // for some reason Chrome can't handle source map in server-rendered
      // style tags - source maps in <style> only works if the style tag is
      // created and inserted dynamically. So we remove the server rendered
      // styles and inject new ones.
      styleElement.parentNode.removeChild(styleElement)
    }
  }

  if (isOldIE) {
    // use singleton mode for IE9.
    var styleIndex = singletonCounter++
    styleElement = singletonElement || (singletonElement = createStyleElement())
    update = applyToSingletonTag.bind(null, styleElement, styleIndex, false)
    remove = applyToSingletonTag.bind(null, styleElement, styleIndex, true)
  } else {
    // use multi-style-tag mode in all other cases
    styleElement = createStyleElement()
    update = applyToTag.bind(null, styleElement)
    remove = function () {
      styleElement.parentNode.removeChild(styleElement)
    }
  }

  update(obj)

  return function updateStyle (newObj /* StyleObjectPart */) {
    if (newObj) {
      if (newObj.css === obj.css &&
          newObj.media === obj.media &&
          newObj.sourceMap === obj.sourceMap) {
        return
      }
      update(obj = newObj)
    } else {
      remove()
    }
  }
}

var replaceText = (function () {
  var textStore = []

  return function (index, replacement) {
    textStore[index] = replacement
    return textStore.filter(Boolean).join('\n')
  }
})()

function applyToSingletonTag (styleElement, index, remove, obj) {
  var css = remove ? '' : obj.css

  if (styleElement.styleSheet) {
    styleElement.styleSheet.cssText = replaceText(index, css)
  } else {
    var cssNode = document.createTextNode(css)
    var childNodes = styleElement.childNodes
    if (childNodes[index]) styleElement.removeChild(childNodes[index])
    if (childNodes.length) {
      styleElement.insertBefore(cssNode, childNodes[index])
    } else {
      styleElement.appendChild(cssNode)
    }
  }
}

function applyToTag (styleElement, obj) {
  var css = obj.css
  var media = obj.media
  var sourceMap = obj.sourceMap

  if (media) {
    styleElement.setAttribute('media', media)
  }
  if (options.ssrId) {
    styleElement.setAttribute(ssrIdKey, obj.id)
  }

  if (sourceMap) {
    // https://developer.chrome.com/devtools/docs/javascript-debugging
    // this makes source maps inside style tags work properly in Chrome
    css += '\n/*# sourceURL=' + sourceMap.sources[0] + ' */'
    // http://stackoverflow.com/a/26603875
    css += '\n/*# sourceMappingURL=data:application/json;base64,' + btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))) + ' */'
  }

  if (styleElement.styleSheet) {
    styleElement.styleSheet.cssText = css
  } else {
    while (styleElement.firstChild) {
      styleElement.removeChild(styleElement.firstChild)
    }
    styleElement.appendChild(document.createTextNode(css))
  }
}


/***/ })

/******/ 	});
/************************************************************************/
/******/ 	// The module cache
/******/ 	var __webpack_module_cache__ = {};
/******/ 	
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/ 		// Check if module is in cache
/******/ 		var cachedModule = __webpack_module_cache__[moduleId];
/******/ 		if (cachedModule !== undefined) {
/******/ 			return cachedModule.exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = __webpack_module_cache__[moduleId] = {
/******/ 			id: moduleId,
/******/ 			// no module.loaded needed
/******/ 			exports: {}
/******/ 		};
/******/ 	
/******/ 		// Execute the module function
/******/ 		__webpack_modules__[moduleId].call(module.exports, module, module.exports, __webpack_require__);
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// This entry need to be wrapped in an IIFE because it need to be in strict mode.
!function() {
"use strict";
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__webpack_require__.r(__webpack_exports__);

// EXPORTS
__webpack_require__.d(__webpack_exports__, {
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});

;// CONCATENATED MODULE: ./node_modules/@vue/cli-service/lib/commands/build/setPublicPath.js
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// This file is imported into lib/wc client bundles.

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// EXTERNAL MODULE: ./node_modules/core-js/modules/es.function.name.js
var es_function_name = __webpack_require__(8309);
;// CONCATENATED MODULE: ./node_modules/@vue/vue-loader-v15/lib/loaders/templateLoader.js??vue-loader-options!./node_modules/@vue/vue-loader-v15/lib/index.js??vue-loader-options!./src/package/BScroll.vue?vue&type=template&id=45828462&scoped=true&
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"}})])]):_vm._e()]},{"pullUpLoad":_vm.pullUpLoad,"isPullUpLoad":_vm.isPullUpLoad})],2),_vm._t("pulldown",function(){return [(_vm.pullDownRefresh)?_c('div',{ref:"pulldown",staticClass:"pulldown-wrapper",style:(_vm.pullDownStyle)},[(_vm.beforePullDown)?_c('div',{staticClass:"before-trigger"},[_c('b-bubble',{attrs:{"y":_vm.bubbleY}})],1):_c('div',{staticClass:"after-trigger"},[(_vm.pulling)?_c('div',{staticClass:"loading"},[_c('img',{staticClass:"scroll-loading",attrs:{"src":"data:image/gif;base64,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"}})]):_c('div',[_c('span',[_vm._v(_vm._s(_vm.refreshTxt))])])])]):_vm._e()]},{"pullDownRefresh":_vm.pullDownRefresh,"pullDownStyle":_vm.pullDownStyle,"beforePullDown":_vm.beforePullDown,"pulling":_vm.pulling,"bubbleY":_vm.bubbleY})],2)}
var staticRenderFns = []


// EXTERNAL MODULE: ./node_modules/core-js/modules/es.number.constructor.js
var es_number_constructor = __webpack_require__(9653);
// EXTERNAL MODULE: ./node_modules/core-js/modules/es.object.assign.js
var es_object_assign = __webpack_require__(9601);
// EXTERNAL MODULE: ./node_modules/core-js/modules/es.object.to-string.js
var es_object_to_string = __webpack_require__(1539);
// EXTERNAL MODULE: ./node_modules/core-js/modules/es.promise.js
var es_promise = __webpack_require__(8674);
;// CONCATENATED MODULE: ./node_modules/better-scroll/dist/better-scroll.esm.js
/*!
 * better-scroll / better-scroll
 * (c) 2016-2021 ustbhuangyi
 * Released under the MIT License.
 */
/*! *****************************************************************************
Copyright (c) Microsoft Corporation.

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
/* global Reflect, Promise */

var extendStatics = function(d, b) {
    extendStatics = Object.setPrototypeOf ||
        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
        function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
    return extendStatics(d, b);
};

function __extends(d, b) {
    extendStatics(d, b);
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
}

var __assign = function() {
    __assign = Object.assign || function __assign(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};

function __awaiter(thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
}

function __generator(thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
        if (f) throw new TypeError("Generator is already executing.");
        while (_) try {
            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
                    _.trys.pop(); continue;
            }
            op = body.call(thisArg, _);
        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
}

function __spreadArrays() {
    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
    for (var r = Array(s), k = 0, i = 0; i < il; i++)
        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
            r[k] = a[j];
    return r;
}

var propertiesConfig$7 = [
    {
        sourceKey: 'scroller.scrollBehaviorX.currentPos',
        key: 'x'
    },
    {
        sourceKey: 'scroller.scrollBehaviorY.currentPos',
        key: 'y'
    },
    {
        sourceKey: 'scroller.scrollBehaviorX.hasScroll',
        key: 'hasHorizontalScroll'
    },
    {
        sourceKey: 'scroller.scrollBehaviorY.hasScroll',
        key: 'hasVerticalScroll'
    },
    {
        sourceKey: 'scroller.scrollBehaviorX.contentSize',
        key: 'scrollerWidth'
    },
    {
        sourceKey: 'scroller.scrollBehaviorY.contentSize',
        key: 'scrollerHeight'
    },
    {
        sourceKey: 'scroller.scrollBehaviorX.maxScrollPos',
        key: 'maxScrollX'
    },
    {
        sourceKey: 'scroller.scrollBehaviorY.maxScrollPos',
        key: 'maxScrollY'
    },
    {
        sourceKey: 'scroller.scrollBehaviorX.minScrollPos',
        key: 'minScrollX'
    },
    {
        sourceKey: 'scroller.scrollBehaviorY.minScrollPos',
        key: 'minScrollY'
    },
    {
        sourceKey: 'scroller.scrollBehaviorX.movingDirection',
        key: 'movingDirectionX'
    },
    {
        sourceKey: 'scroller.scrollBehaviorY.movingDirection',
        key: 'movingDirectionY'
    },
    {
        sourceKey: 'scroller.scrollBehaviorX.direction',
        key: 'directionX'
    },
    {
        sourceKey: 'scroller.scrollBehaviorY.direction',
        key: 'directionY'
    },
    {
        sourceKey: 'scroller.actions.enabled',
        key: 'enabled'
    },
    {
        sourceKey: 'scroller.animater.pending',
        key: 'pending'
    },
    {
        sourceKey: 'scroller.animater.stop',
        key: 'stop'
    },
    {
        sourceKey: 'scroller.scrollTo',
        key: 'scrollTo'
    },
    {
        sourceKey: 'scroller.scrollBy',
        key: 'scrollBy'
    },
    {
        sourceKey: 'scroller.scrollToElement',
        key: 'scrollToElement'
    },
    {
        sourceKey: 'scroller.resetPosition',
        key: 'resetPosition'
    }
];

function warn(msg) {
    console.error("[BScroll warn]: " + msg);
}
function assert(condition, msg) {
    if (!condition) {
        throw new Error('[BScroll] ' + msg);
    }
}

// ssr support
var inBrowser = typeof window !== 'undefined';
var ua = inBrowser && navigator.userAgent.toLowerCase();
var isWeChatDevTools = !!(ua && /wechatdevtools/.test(ua));
var isAndroid = ua && ua.indexOf('android') > 0;
/* istanbul ignore next */
var isIOSBadVersion = (function () {
    if (typeof ua === 'string') {
        var regex = /os (\d\d?_\d(_\d)?)/;
        var matches = regex.exec(ua);
        if (!matches)
            return false;
        var parts = matches[1].split('_').map(function (item) {
            return parseInt(item, 10);
        });
        // ios version >= 13.4 issue 982
        return !!(parts[0] === 13 && parts[1] >= 4);
    }
    return false;
})();
/* istanbul ignore next */
var supportsPassive = false;
/* istanbul ignore next */
if (inBrowser) {
    var EventName = 'test-passive';
    try {
        var opts = {};
        Object.defineProperty(opts, 'passive', {
            get: function () {
                supportsPassive = true;
            },
        }); // https://github.com/facebook/flow/issues/285
        window.addEventListener(EventName, function () { }, opts);
    }
    catch (e) { }
}

function getNow() {
    return window.performance &&
        window.performance.now &&
        window.performance.timing
        ? window.performance.now() + window.performance.timing.navigationStart
        : +new Date();
}
var extend = function (target, source) {
    for (var key in source) {
        target[key] = source[key];
    }
    return target;
};
function isUndef(v) {
    return v === undefined || v === null;
}
function getDistance(x, y) {
    return Math.sqrt(x * x + y * y);
}
function between(x, min, max) {
    if (x < min) {
        return min;
    }
    if (x > max) {
        return max;
    }
    return x;
}
function findIndex(ary, fn) {
    if (ary.findIndex) {
        return ary.findIndex(fn);
    }
    var index = -1;
    ary.some(function (item, i, ary) {
        var ret = fn(item, i, ary);
        if (ret) {
            index = i;
            return ret;
        }
    });
    return index;
}

var elementStyle = (inBrowser &&
    document.createElement('div').style);
var vendor = (function () {
    /* istanbul ignore if  */
    if (!inBrowser) {
        return false;
    }
    var transformNames = [
        {
            key: 'standard',
            value: 'transform',
        },
        {
            key: 'webkit',
            value: 'webkitTransform',
        },
        {
            key: 'Moz',
            value: 'MozTransform',
        },
        {
            key: 'O',
            value: 'OTransform',
        },
        {
            key: 'ms',
            value: 'msTransform',
        },
    ];
    for (var _i = 0, transformNames_1 = transformNames; _i < transformNames_1.length; _i++) {
        var obj = transformNames_1[_i];
        if (elementStyle[obj.value] !== undefined) {
            return obj.key;
        }
    }
    /* istanbul ignore next  */
    return false;
})();
/* istanbul ignore next  */
function prefixStyle(style) {
    if (vendor === false) {
        return style;
    }
    if (vendor === 'standard') {
        if (style === 'transitionEnd') {
            return 'transitionend';
        }
        return style;
    }
    return vendor + style.charAt(0).toUpperCase() + style.substr(1);
}
function getElement(el) {
    return (typeof el === 'string'
        ? document.querySelector(el)
        : el);
}
function addEvent(el, type, fn, capture) {
    var useCapture = supportsPassive
        ? {
            passive: false,
            capture: !!capture,
        }
        : !!capture;
    el.addEventListener(type, fn, useCapture);
}
function removeEvent(el, type, fn, capture) {
    el.removeEventListener(type, fn, {
        capture: !!capture,
    });
}
function offset(el) {
    var left = 0;
    var top = 0;
    while (el) {
        left -= el.offsetLeft;
        top -= el.offsetTop;
        el = el.offsetParent;
    }
    return {
        left: left,
        top: top,
    };
}
function offsetToBody(el) {
    var rect = el.getBoundingClientRect();
    return {
        left: -(rect.left + window.pageXOffset),
        top: -(rect.top + window.pageYOffset),
    };
}
var cssVendor = vendor && vendor !== 'standard' ? '-' + vendor.toLowerCase() + '-' : '';
var transform = prefixStyle('transform');
var transition = prefixStyle('transition');
var hasPerspective = inBrowser && prefixStyle('perspective') in elementStyle;
// fix issue #361
var hasTouch = inBrowser && ('ontouchstart' in window || isWeChatDevTools);
var hasTransition = inBrowser && transition in elementStyle;
var style = {
    transform: transform,
    transition: transition,
    transitionTimingFunction: prefixStyle('transitionTimingFunction'),
    transitionDuration: prefixStyle('transitionDuration'),
    transitionDelay: prefixStyle('transitionDelay'),
    transformOrigin: prefixStyle('transformOrigin'),
    transitionEnd: prefixStyle('transitionEnd'),
    transitionProperty: prefixStyle('transitionProperty'),
};
var eventTypeMap = {
    touchstart: 1,
    touchmove: 1,
    touchend: 1,
    touchcancel: 1,
    mousedown: 2,
    mousemove: 2,
    mouseup: 2,
};
function getRect(el) {
    /* istanbul ignore if  */
    if (el instanceof window.SVGElement) {
        var rect = el.getBoundingClientRect();
        return {
            top: rect.top,
            left: rect.left,
            width: rect.width,
            height: rect.height,
        };
    }
    else {
        return {
            top: el.offsetTop,
            left: el.offsetLeft,
            width: el.offsetWidth,
            height: el.offsetHeight,
        };
    }
}
function preventDefaultExceptionFn(el, exceptions) {
    for (var i in exceptions) {
        if (exceptions[i].test(el[i])) {
            return true;
        }
    }
    return false;
}
var tagExceptionFn = preventDefaultExceptionFn;
function tap(e, eventName) {
    var ev = document.createEvent('Event');
    ev.initEvent(eventName, true, true);
    ev.pageX = e.pageX;
    ev.pageY = e.pageY;
    e.target.dispatchEvent(ev);
}
function click(e, event) {
    if (event === void 0) { event = 'click'; }
    var eventSource;
    if (e.type === 'mouseup') {
        eventSource = e;
    }
    else if (e.type === 'touchend' || e.type === 'touchcancel') {
        eventSource = e.changedTouches[0];
    }
    var posSrc = {};
    if (eventSource) {
        posSrc.screenX = eventSource.screenX || 0;
        posSrc.screenY = eventSource.screenY || 0;
        posSrc.clientX = eventSource.clientX || 0;
        posSrc.clientY = eventSource.clientY || 0;
    }
    var ev;
    var bubbles = true;
    var cancelable = true;
    var ctrlKey = e.ctrlKey, shiftKey = e.shiftKey, altKey = e.altKey, metaKey = e.metaKey;
    var pressedKeysMap = {
        ctrlKey: ctrlKey,
        shiftKey: shiftKey,
        altKey: altKey,
        metaKey: metaKey,
    };
    if (typeof MouseEvent !== 'undefined') {
        try {
            ev = new MouseEvent(event, extend(__assign({ bubbles: bubbles,
                cancelable: cancelable }, pressedKeysMap), posSrc));
        }
        catch (e) {
            /* istanbul ignore next */
            createEvent();
        }
    }
    else {
        createEvent();
    }
    function createEvent() {
        ev = document.createEvent('Event');
        ev.initEvent(event, bubbles, cancelable);
        extend(ev, posSrc);
    }
    // forwardedTouchEvent set to true in case of the conflict with fastclick
    ev.forwardedTouchEvent = true;
    ev._constructed = true;
    e.target.dispatchEvent(ev);
}
function dblclick(e) {
    click(e, 'dblclick');
}
function prepend(el, target) {
    var firstChild = target.firstChild;
    if (firstChild) {
        before(el, firstChild);
    }
    else {
        target.appendChild(el);
    }
}
function before(el, target) {
    var parentNode = target.parentNode;
    parentNode.insertBefore(el, target);
}
function removeChild(el, child) {
    el.removeChild(child);
}
function hasClass(el, className) {
    var reg = new RegExp('(^|\\s)' + className + '(\\s|$)');
    return reg.test(el.className);
}
function HTMLCollectionToArray(el) {
    return Array.prototype.slice.call(el, 0);
}
function getClientSize(el) {
    return {
        width: el.clientWidth,
        height: el.clientHeight,
    };
}

var ease = {
    // easeOutQuint
    swipe: {
        style: 'cubic-bezier(0.23, 1, 0.32, 1)',
        fn: function (t) {
            return 1 + --t * t * t * t * t;
        }
    },
    // easeOutQuard
    swipeBounce: {
        style: 'cubic-bezier(0.25, 0.46, 0.45, 0.94)',
        fn: function (t) {
            return t * (2 - t);
        }
    },
    // easeOutQuart
    bounce: {
        style: 'cubic-bezier(0.165, 0.84, 0.44, 1)',
        fn: function (t) {
            return 1 - --t * t * t * t;
        }
    }
};

var DEFAULT_INTERVAL = 1000 / 60;
var windowCompat = inBrowser && window;
/* istanbul ignore next */
function noop$1() { }
var requestAnimationFrame = (function () {
    /* istanbul ignore if  */
    if (!inBrowser) {
        return noop$1;
    }
    return (windowCompat.requestAnimationFrame ||
        windowCompat.webkitRequestAnimationFrame ||
        windowCompat.mozRequestAnimationFrame ||
        windowCompat.oRequestAnimationFrame ||
        // if all else fails, use setTimeout
        function (callback) {
            return window.setTimeout(callback, callback.interval || DEFAULT_INTERVAL); // make interval as precise as possible.
        });
})();
var cancelAnimationFrame = (function () {
    /* istanbul ignore if  */
    if (!inBrowser) {
        return noop$1;
    }
    return (windowCompat.cancelAnimationFrame ||
        windowCompat.webkitCancelAnimationFrame ||
        windowCompat.mozCancelAnimationFrame ||
        windowCompat.oCancelAnimationFrame ||
        function (id) {
            window.clearTimeout(id);
        });
})();

/* istanbul ignore next */
var noop = function (val) { };
var sharedPropertyDefinition = {
    enumerable: true,
    configurable: true,
    get: noop,
    set: noop,
};
var getProperty = function (obj, key) {
    var keys = key.split('.');
    for (var i = 0; i < keys.length - 1; i++) {
        obj = obj[keys[i]];
        if (typeof obj !== 'object' || !obj)
            return;
    }
    var lastKey = keys.pop();
    if (typeof obj[lastKey] === 'function') {
        return function () {
            return obj[lastKey].apply(obj, arguments);
        };
    }
    else {
        return obj[lastKey];
    }
};
var setProperty = function (obj, key, value) {
    var keys = key.split('.');
    var temp;
    for (var i = 0; i < keys.length - 1; i++) {
        temp = keys[i];
        if (!obj[temp])
            obj[temp] = {};
        obj = obj[temp];
    }
    obj[keys.pop()] = value;
};
function propertiesProxy(target, sourceKey, key) {
    sharedPropertyDefinition.get = function proxyGetter() {
        return getProperty(this, sourceKey);
    };
    sharedPropertyDefinition.set = function proxySetter(val) {
        setProperty(this, sourceKey, val);
    };
    Object.defineProperty(target, key, sharedPropertyDefinition);
}

var EventEmitter = /** @class */ (function () {
    function EventEmitter(names) {
        this.events = {};
        this.eventTypes = {};
        this.registerType(names);
    }
    EventEmitter.prototype.on = function (type, fn, context) {
        if (context === void 0) { context = this; }
        this.hasType(type);
        if (!this.events[type]) {
            this.events[type] = [];
        }
        this.events[type].push([fn, context]);
        return this;
    };
    EventEmitter.prototype.once = function (type, fn, context) {
        var _this = this;
        if (context === void 0) { context = this; }
        this.hasType(type);
        var magic = function () {
            var args = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                args[_i] = arguments[_i];
            }
            _this.off(type, magic);
            var ret = fn.apply(context, args);
            if (ret === true) {
                return ret;
            }
        };
        magic.fn = fn;
        this.on(type, magic);
        return this;
    };
    EventEmitter.prototype.off = function (type, fn) {
        if (!type && !fn) {
            this.events = {};
            return this;
        }
        if (type) {
            this.hasType(type);
            if (!fn) {
                this.events[type] = [];
                return this;
            }
            var events = this.events[type];
            if (!events) {
                return this;
            }
            var count = events.length;
            while (count--) {
                if (events[count][0] === fn ||
                    (events[count][0] && events[count][0].fn === fn)) {
                    events.splice(count, 1);
                }
            }
            return this;
        }
    };
    EventEmitter.prototype.trigger = function (type) {
        var args = [];
        for (var _i = 1; _i < arguments.length; _i++) {
            args[_i - 1] = arguments[_i];
        }
        this.hasType(type);
        var events = this.events[type];
        if (!events) {
            return;
        }
        var len = events.length;
        var eventsCopy = __spreadArrays(events);
        var ret;
        for (var i = 0; i < len; i++) {
            var event_1 = eventsCopy[i];
            var fn = event_1[0], context = event_1[1];
            if (fn) {
                ret = fn.apply(context, args);
                if (ret === true) {
                    return ret;
                }
            }
        }
    };
    EventEmitter.prototype.registerType = function (names) {
        var _this = this;
        names.forEach(function (type) {
            _this.eventTypes[type] = type;
        });
    };
    EventEmitter.prototype.destroy = function () {
        this.events = {};
        this.eventTypes = {};
    };
    EventEmitter.prototype.hasType = function (type) {
        var types = this.eventTypes;
        var isType = types[type] === type;
        if (!isType) {
            warn("EventEmitter has used unknown event type: \"" + type + "\", should be oneof [" +
                ("" + Object.keys(types).map(function (_) { return JSON.stringify(_); })) +
                "]");
        }
    };
    return EventEmitter;
}());
var EventRegister = /** @class */ (function () {
    function EventRegister(wrapper, events) {
        this.wrapper = wrapper;
        this.events = events;
        this.addDOMEvents();
    }
    EventRegister.prototype.destroy = function () {
        this.removeDOMEvents();
        this.events = [];
    };
    EventRegister.prototype.addDOMEvents = function () {
        this.handleDOMEvents(addEvent);
    };
    EventRegister.prototype.removeDOMEvents = function () {
        this.handleDOMEvents(removeEvent);
    };
    EventRegister.prototype.handleDOMEvents = function (eventOperation) {
        var _this = this;
        var wrapper = this.wrapper;
        this.events.forEach(function (event) {
            eventOperation(wrapper, event.name, _this, !!event.capture);
        });
    };
    EventRegister.prototype.handleEvent = function (e) {
        var eventType = e.type;
        this.events.some(function (event) {
            if (event.name === eventType) {
                event.handler(e);
                return true;
            }
            return false;
        });
    };
    return EventRegister;
}());

var CustomOptions = /** @class */ (function () {
    function CustomOptions() {
    }
    return CustomOptions;
}());
var OptionsConstructor = /** @class */ (function (_super) {
    __extends(OptionsConstructor, _super);
    function OptionsConstructor() {
        var _this = _super.call(this) || this;
        _this.startX = 0;
        _this.startY = 0;
        _this.scrollX = false;
        _this.scrollY = true;
        _this.freeScroll = false;
        _this.directionLockThreshold = 0;
        _this.eventPassthrough = "" /* None */;
        _this.click = false;
        _this.dblclick = false;
        _this.tap = '';
        _this.bounce = {
            top: true,
            bottom: true,
            left: true,
            right: true,
        };
        _this.bounceTime = 800;
        _this.momentum = true;
        _this.momentumLimitTime = 300;
        _this.momentumLimitDistance = 15;
        _this.swipeTime = 2500;
        _this.swipeBounceTime = 500;
        _this.deceleration = 0.0015;
        _this.flickLimitTime = 200;
        _this.flickLimitDistance = 100;
        _this.resizePolling = 60;
        _this.probeType = 0 /* Default */;
        _this.stopPropagation = false;
        _this.preventDefault = true;
        _this.preventDefaultException = {
            tagName: /^(INPUT|TEXTAREA|BUTTON|SELECT|AUDIO)$/,
        };
        _this.tagException = {
            tagName: /^TEXTAREA$/,
        };
        _this.HWCompositing = true;
        _this.useTransition = true;
        _this.bindToWrapper = false;
        _this.bindToTarget = false;
        _this.disableMouse = hasTouch;
        _this.disableTouch = !hasTouch;
        _this.autoBlur = true;
        _this.autoEndDistance = 5;
        _this.outOfBoundaryDampingFactor = 1 / 3;
        _this.specifiedIndexAsContent = 0;
        _this.quadrant = 1 /* First */;
        return _this;
    }
    OptionsConstructor.prototype.merge = function (options) {
        if (!options)
            return this;
        for (var key in options) {
            if (key === 'bounce') {
                this.bounce = this.resolveBounce(options[key]);
                continue;
            }
            this[key] = options[key];
        }
        return this;
    };
    OptionsConstructor.prototype.process = function () {
        this.translateZ =
            this.HWCompositing && hasPerspective ? ' translateZ(1px)' : '';
        this.useTransition = this.useTransition && hasTransition;
        this.preventDefault = !this.eventPassthrough && this.preventDefault;
        // If you want eventPassthrough I have to lock one of the axes
        this.scrollX =
            this.eventPassthrough === "horizontal" /* Horizontal */
                ? false
                : this.scrollX;
        this.scrollY =
            this.eventPassthrough === "vertical" /* Vertical */ ? false : this.scrollY;
        // With eventPassthrough we also need lockDirection mechanism
        this.freeScroll = this.freeScroll && !this.eventPassthrough;
        // force true when freeScroll is true
        this.scrollX = this.freeScroll ? true : this.scrollX;
        this.scrollY = this.freeScroll ? true : this.scrollY;
        this.directionLockThreshold = this.eventPassthrough
            ? 0
            : this.directionLockThreshold;
        return this;
    };
    OptionsConstructor.prototype.resolveBounce = function (bounceOptions) {
        var DEFAULT_BOUNCE = {
            top: true,
            right: true,
            bottom: true,
            left: true,
        };
        var NEGATED_BOUNCE = {
            top: false,
            right: false,
            bottom: false,
            left: false,
        };
        var ret;
        if (typeof bounceOptions === 'object') {
            ret = extend(DEFAULT_BOUNCE, bounceOptions);
        }
        else {
            ret = bounceOptions ? DEFAULT_BOUNCE : NEGATED_BOUNCE;
        }
        return ret;
    };
    return OptionsConstructor;
}(CustomOptions));

var ActionsHandler = /** @class */ (function () {
    function ActionsHandler(wrapper, options) {
        this.wrapper = wrapper;
        this.options = options;
        this.hooks = new EventEmitter([
            'beforeStart',
            'start',
            'move',
            'end',
            'click',
        ]);
        this.handleDOMEvents();
    }
    ActionsHandler.prototype.handleDOMEvents = function () {
        var _a = this.options, bindToWrapper = _a.bindToWrapper, disableMouse = _a.disableMouse, disableTouch = _a.disableTouch, click = _a.click;
        var wrapper = this.wrapper;
        var target = bindToWrapper ? wrapper : window;
        var wrapperEvents = [];
        var targetEvents = [];
        var shouldRegisterTouch = !disableTouch;
        var shouldRegisterMouse = !disableMouse;
        if (click) {
            wrapperEvents.push({
                name: 'click',
                handler: this.click.bind(this),
                capture: true,
            });
        }
        if (shouldRegisterTouch) {
            wrapperEvents.push({
                name: 'touchstart',
                handler: this.start.bind(this),
            });
            targetEvents.push({
                name: 'touchmove',
                handler: this.move.bind(this),
            }, {
                name: 'touchend',
                handler: this.end.bind(this),
            }, {
                name: 'touchcancel',
                handler: this.end.bind(this),
            });
        }
        if (shouldRegisterMouse) {
            wrapperEvents.push({
                name: 'mousedown',
                handler: this.start.bind(this),
            });
            targetEvents.push({
                name: 'mousemove',
                handler: this.move.bind(this),
            }, {
                name: 'mouseup',
                handler: this.end.bind(this),
            });
        }
        this.wrapperEventRegister = new EventRegister(wrapper, wrapperEvents);
        this.targetEventRegister = new EventRegister(target, targetEvents);
    };
    ActionsHandler.prototype.beforeHandler = function (e, type) {
        var _a = this.options, preventDefault = _a.preventDefault, stopPropagation = _a.stopPropagation, preventDefaultException = _a.preventDefaultException;
        var preventDefaultConditions = {
            start: function () {
                return (preventDefault &&
                    !preventDefaultExceptionFn(e.target, preventDefaultException));
            },
            end: function () {
                return (preventDefault &&
                    !preventDefaultExceptionFn(e.target, preventDefaultException));
            },
            move: function () {
                return preventDefault;
            },
        };
        if (preventDefaultConditions[type]()) {
            e.preventDefault();
        }
        if (stopPropagation) {
            e.stopPropagation();
        }
    };
    ActionsHandler.prototype.setInitiated = function (type) {
        if (type === void 0) { type = 0; }
        this.initiated = type;
    };
    ActionsHandler.prototype.start = function (e) {
        var _eventType = eventTypeMap[e.type];
        if (this.initiated && this.initiated !== _eventType) {
            return;
        }
        this.setInitiated(_eventType);
        // if textarea or other html tags in options.tagException is manipulated
        // do not make bs scroll
        if (tagExceptionFn(e.target, this.options.tagException)) {
            this.setInitiated();
            return;
        }
        // only allow mouse left button
        if (_eventType === 2 /* Mouse */ && e.button !== 0 /* Left */)
            return;
        if (this.hooks.trigger(this.hooks.eventTypes.beforeStart, e)) {
            return;
        }
        this.beforeHandler(e, 'start');
        var point = (e.touches ? e.touches[0] : e);
        this.pointX = point.pageX;
        this.pointY = point.pageY;
        this.hooks.trigger(this.hooks.eventTypes.start, e);
    };
    ActionsHandler.prototype.move = function (e) {
        if (eventTypeMap[e.type] !== this.initiated) {
            return;
        }
        this.beforeHandler(e, 'move');
        var point = (e.touches ? e.touches[0] : e);
        var deltaX = point.pageX - this.pointX;
        var deltaY = point.pageY - this.pointY;
        this.pointX = point.pageX;
        this.pointY = point.pageY;
        if (this.hooks.trigger(this.hooks.eventTypes.move, {
            deltaX: deltaX,
            deltaY: deltaY,
            e: e,
        })) {
            return;
        }
        // auto end when out of viewport
        var scrollLeft = document.documentElement.scrollLeft ||
            window.pageXOffset ||
            document.body.scrollLeft;
        var scrollTop = document.documentElement.scrollTop ||
            window.pageYOffset ||
            document.body.scrollTop;
        var pX = this.pointX - scrollLeft;
        var pY = this.pointY - scrollTop;
        var autoEndDistance = this.options.autoEndDistance;
        if (pX > document.documentElement.clientWidth - autoEndDistance ||
            pY > document.documentElement.clientHeight - autoEndDistance ||
            pX < autoEndDistance ||
            pY < autoEndDistance) {
            this.end(e);
        }
    };
    ActionsHandler.prototype.end = function (e) {
        if (eventTypeMap[e.type] !== this.initiated) {
            return;
        }
        this.setInitiated();
        this.beforeHandler(e, 'end');
        this.hooks.trigger(this.hooks.eventTypes.end, e);
    };
    ActionsHandler.prototype.click = function (e) {
        this.hooks.trigger(this.hooks.eventTypes.click, e);
    };
    ActionsHandler.prototype.setContent = function (content) {
        if (content !== this.wrapper) {
            this.wrapper = content;
            this.rebindDOMEvents();
        }
    };
    ActionsHandler.prototype.rebindDOMEvents = function () {
        this.wrapperEventRegister.destroy();
        this.targetEventRegister.destroy();
        this.handleDOMEvents();
    };
    ActionsHandler.prototype.destroy = function () {
        this.wrapperEventRegister.destroy();
        this.targetEventRegister.destroy();
        this.hooks.destroy();
    };
    return ActionsHandler;
}());

var translaterMetaData = {
    x: ['translateX', 'px'],
    y: ['translateY', 'px'],
};
var Translater = /** @class */ (function () {
    function Translater(content) {
        this.setContent(content);
        this.hooks = new EventEmitter(['beforeTranslate', 'translate']);
    }
    Translater.prototype.getComputedPosition = function () {
        var cssStyle = window.getComputedStyle(this.content, null);
        var matrix = cssStyle[style.transform].split(')')[0].split(', ');
        var x = +(matrix[12] || matrix[4]) || 0;
        var y = +(matrix[13] || matrix[5]) || 0;
        return {
            x: x,
            y: y,
        };
    };
    Translater.prototype.translate = function (point) {
        var transformStyle = [];
        Object.keys(point).forEach(function (key) {
            if (!translaterMetaData[key]) {
                return;
            }
            var transformFnName = translaterMetaData[key][0];
            if (transformFnName) {
                var transformFnArgUnit = translaterMetaData[key][1];
                var transformFnArg = point[key];
                transformStyle.push(transformFnName + "(" + transformFnArg + transformFnArgUnit + ")");
            }
        });
        this.hooks.trigger(this.hooks.eventTypes.beforeTranslate, transformStyle, point);
        this.style[style.transform] = transformStyle.join(' ');
        this.hooks.trigger(this.hooks.eventTypes.translate, point);
    };
    Translater.prototype.setContent = function (content) {
        if (this.content !== content) {
            this.content = content;
            this.style = content.style;
        }
    };
    Translater.prototype.destroy = function () {
        this.hooks.destroy();
    };
    return Translater;
}());

var Base = /** @class */ (function () {
    function Base(content, translater, options) {
        this.translater = translater;
        this.options = options;
        this.timer = 0;
        this.hooks = new EventEmitter([
            'move',
            'end',
            'beforeForceStop',
            'forceStop',
            'callStop',
            'time',
            'timeFunction',
        ]);
        this.setContent(content);
    }
    Base.prototype.translate = function (endPoint) {
        this.translater.translate(endPoint);
    };
    Base.prototype.setPending = function (pending) {
        this.pending = pending;
    };
    Base.prototype.setForceStopped = function (forceStopped) {
        this.forceStopped = forceStopped;
    };
    Base.prototype.setCallStop = function (called) {
        this.callStopWhenPending = called;
    };
    Base.prototype.setContent = function (content) {
        if (this.content !== content) {
            this.content = content;
            this.style = content.style;
            this.stop();
        }
    };
    Base.prototype.clearTimer = function () {
        if (this.timer) {
            cancelAnimationFrame(this.timer);
            this.timer = 0;
        }
    };
    Base.prototype.destroy = function () {
        this.hooks.destroy();
        cancelAnimationFrame(this.timer);
    };
    return Base;
}());

// iOS 13.6 - 14.x, window.getComputedStyle sometimes will get wrong transform value
// when bs use transition mode
// eg: translateY -100px -> -200px, when the last frame which is about to scroll to -200px
// window.getComputedStyle(this.content) will calculate transformY to be -100px(startPoint)
// it is weird
// so we should validate position caculated by 'window.getComputedStyle'
var isValidPostion = function (startPoint, endPoint, currentPos, prePos) {
    var computeDirection = function (endValue, startValue) {
        var delta = endValue - startValue;
        var direction = delta > 0
            ? -1 /* Negative */
            : delta < 0
                ? 1 /* Positive */
                : 0 /* Default */;
        return direction;
    };
    var directionX = computeDirection(endPoint.x, startPoint.x);
    var directionY = computeDirection(endPoint.y, startPoint.y);
    var deltaX = currentPos.x - prePos.x;
    var deltaY = currentPos.y - prePos.y;
    return directionX * deltaX <= 0 && directionY * deltaY <= 0;
};

var Transition = /** @class */ (function (_super) {
    __extends(Transition, _super);
    function Transition() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    Transition.prototype.startProbe = function (startPoint, endPoint) {
        var _this = this;
        var prePos = startPoint;
        var probe = function () {
            var pos = _this.translater.getComputedPosition();
            if (isValidPostion(startPoint, endPoint, pos, prePos)) {
                _this.hooks.trigger(_this.hooks.eventTypes.move, pos);
            }
            // call bs.stop() should not dispatch end hook again.
            // forceStop hook will do this.
            /* istanbul ignore if  */
            if (!_this.pending) {
                if (_this.callStopWhenPending) {
                    _this.callStopWhenPending = false;
                }
                else {
                    // transition ends should dispatch end hook.
                    _this.hooks.trigger(_this.hooks.eventTypes.end, pos);
                }
            }
            prePos = pos;
            if (_this.pending) {
                _this.timer = requestAnimationFrame(probe);
            }
        };
        // when manually call bs.stop(), then bs.scrollTo()
        // we should reset callStopWhenPending to dispatch end hook
        if (this.callStopWhenPending) {
            this.setCallStop(false);
        }
        cancelAnimationFrame(this.timer);
        probe();
    };
    Transition.prototype.transitionTime = function (time) {
        if (time === void 0) { time = 0; }
        this.style[style.transitionDuration] = time + 'ms';
        this.hooks.trigger(this.hooks.eventTypes.time, time);
    };
    Transition.prototype.transitionTimingFunction = function (easing) {
        this.style[style.transitionTimingFunction] = easing;
        this.hooks.trigger(this.hooks.eventTypes.timeFunction, easing);
    };
    Transition.prototype.transitionProperty = function () {
        this.style[style.transitionProperty] = style.transform;
    };
    Transition.prototype.move = function (startPoint, endPoint, time, easingFn) {
        this.setPending(time > 0);
        this.transitionTimingFunction(easingFn);
        this.transitionProperty();
        this.transitionTime(time);
        this.translate(endPoint);
        var isRealtimeProbeType = this.options.probeType === 3 /* Realtime */;
        if (time && isRealtimeProbeType) {
            this.startProbe(startPoint, endPoint);
        }
        // if we change content's transformY in a tick
        // such as: 0 -> 50px -> 0
        // transitionend will not be triggered
        // so we forceupdate by reflow
        if (!time) {
            this._reflow = this.content.offsetHeight;
            if (isRealtimeProbeType) {
                this.hooks.trigger(this.hooks.eventTypes.move, endPoint);
            }
            this.hooks.trigger(this.hooks.eventTypes.end, endPoint);
        }
    };
    Transition.prototype.doStop = function () {
        var pending = this.pending;
        this.setForceStopped(false);
        this.setCallStop(false);
        // still in transition
        if (pending) {
            this.setPending(false);
            cancelAnimationFrame(this.timer);
            var _a = this.translater.getComputedPosition(), x = _a.x, y = _a.y;
            this.transitionTime();
            this.translate({ x: x, y: y });
            this.setForceStopped(true);
            this.setCallStop(true);
            this.hooks.trigger(this.hooks.eventTypes.forceStop, { x: x, y: y });
        }
        return pending;
    };
    Transition.prototype.stop = function () {
        var stopFromTransition = this.doStop();
        if (stopFromTransition) {
            this.hooks.trigger(this.hooks.eventTypes.callStop);
        }
    };
    return Transition;
}(Base));

var Animation = /** @class */ (function (_super) {
    __extends(Animation, _super);
    function Animation() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    Animation.prototype.move = function (startPoint, endPoint, time, easingFn) {
        // time is 0
        if (!time) {
            this.translate(endPoint);
            if (this.options.probeType === 3 /* Realtime */) {
                this.hooks.trigger(this.hooks.eventTypes.move, endPoint);
            }
            this.hooks.trigger(this.hooks.eventTypes.end, endPoint);
            return;
        }
        this.animate(startPoint, endPoint, time, easingFn);
    };
    Animation.prototype.animate = function (startPoint, endPoint, duration, easingFn) {
        var _this = this;
        var startTime = getNow();
        var destTime = startTime + duration;
        var isRealtimeProbeType = this.options.probeType === 3 /* Realtime */;
        var step = function () {
            var now = getNow();
            // js animation end
            if (now >= destTime) {
                _this.translate(endPoint);
                if (isRealtimeProbeType) {
                    _this.hooks.trigger(_this.hooks.eventTypes.move, endPoint);
                }
                _this.hooks.trigger(_this.hooks.eventTypes.end, endPoint);
                return;
            }
            now = (now - startTime) / duration;
            var easing = easingFn(now);
            var newPoint = {};
            Object.keys(endPoint).forEach(function (key) {
                var startValue = startPoint[key];
                var endValue = endPoint[key];
                newPoint[key] = (endValue - startValue) * easing + startValue;
            });
            _this.translate(newPoint);
            if (isRealtimeProbeType) {
                _this.hooks.trigger(_this.hooks.eventTypes.move, newPoint);
            }
            if (_this.pending) {
                _this.timer = requestAnimationFrame(step);
            }
            // call bs.stop() should not dispatch end hook again.
            // forceStop hook will do this.
            /* istanbul ignore if  */
            if (!_this.pending) {
                if (_this.callStopWhenPending) {
                    _this.callStopWhenPending = false;
                }
                else {
                    // raf ends should dispatch end hook.
                    _this.hooks.trigger(_this.hooks.eventTypes.end, endPoint);
                }
            }
        };
        this.setPending(true);
        // when manually call bs.stop(), then bs.scrollTo()
        // we should reset callStopWhenPending to dispatch end hook
        if (this.callStopWhenPending) {
            this.setCallStop(false);
        }
        cancelAnimationFrame(this.timer);
        step();
    };
    Animation.prototype.doStop = function () {
        var pending = this.pending;
        this.setForceStopped(false);
        this.setCallStop(false);
        // still in requestFrameAnimation
        if (pending) {
            this.setPending(false);
            cancelAnimationFrame(this.timer);
            var pos = this.translater.getComputedPosition();
            this.setForceStopped(true);
            this.setCallStop(true);
            this.hooks.trigger(this.hooks.eventTypes.forceStop, pos);
        }
        return pending;
    };
    Animation.prototype.stop = function () {
        var stopFromAnimation = this.doStop();
        if (stopFromAnimation) {
            this.hooks.trigger(this.hooks.eventTypes.callStop);
        }
    };
    return Animation;
}(Base));

function createAnimater(element, translater, options) {
    var useTransition = options.useTransition;
    var animaterOptions = {};
    Object.defineProperty(animaterOptions, 'probeType', {
        enumerable: true,
        configurable: false,
        get: function () {
            return options.probeType;
        },
    });
    if (useTransition) {
        return new Transition(element, translater, animaterOptions);
    }
    else {
        return new Animation(element, translater, animaterOptions);
    }
}

var Behavior = /** @class */ (function () {
    function Behavior(wrapper, content, options) {
        this.wrapper = wrapper;
        this.options = options;
        this.hooks = new EventEmitter([
            'beforeComputeBoundary',
            'computeBoundary',
            'momentum',
            'end',
            'ignoreHasScroll'
        ]);
        this.refresh(content);
    }
    Behavior.prototype.start = function () {
        this.dist = 0;
        this.setMovingDirection(0 /* Default */);
        this.setDirection(0 /* Default */);
    };
    Behavior.prototype.move = function (delta) {
        delta = this.hasScroll ? delta : 0;
        this.setMovingDirection(delta);
        return this.performDampingAlgorithm(delta, this.options.outOfBoundaryDampingFactor);
    };
    Behavior.prototype.setMovingDirection = function (delta) {
        this.movingDirection =
            delta > 0
                ? -1 /* Negative */
                : delta < 0
                    ? 1 /* Positive */
                    : 0 /* Default */;
    };
    Behavior.prototype.setDirection = function (delta) {
        this.direction =
            delta > 0
                ? -1 /* Negative */
                : delta < 0
                    ? 1 /* Positive */
                    : 0 /* Default */;
    };
    Behavior.prototype.performDampingAlgorithm = function (delta, dampingFactor) {
        var newPos = this.currentPos + delta;
        // Slow down or stop if outside of the boundaries
        if (newPos > this.minScrollPos || newPos < this.maxScrollPos) {
            if ((newPos > this.minScrollPos && this.options.bounces[0]) ||
                (newPos < this.maxScrollPos && this.options.bounces[1])) {
                newPos = this.currentPos + delta * dampingFactor;
            }
            else {
                newPos =
                    newPos > this.minScrollPos ? this.minScrollPos : this.maxScrollPos;
            }
        }
        return newPos;
    };
    Behavior.prototype.end = function (duration) {
        var momentumInfo = {
            duration: 0
        };
        var absDist = Math.abs(this.currentPos - this.startPos);
        // start momentum animation if needed
        if (this.options.momentum &&
            duration < this.options.momentumLimitTime &&
            absDist > this.options.momentumLimitDistance) {
            var wrapperSize = (this.direction === -1 /* Negative */ && this.options.bounces[0]) ||
                (this.direction === 1 /* Positive */ && this.options.bounces[1])
                ? this.wrapperSize
                : 0;
            momentumInfo = this.hasScroll
                ? this.momentum(this.currentPos, this.startPos, duration, this.maxScrollPos, this.minScrollPos, wrapperSize, this.options)
                : { destination: this.currentPos, duration: 0 };
        }
        else {
            this.hooks.trigger(this.hooks.eventTypes.end, momentumInfo);
        }
        return momentumInfo;
    };
    Behavior.prototype.momentum = function (current, start, time, lowerMargin, upperMargin, wrapperSize, options) {
        if (options === void 0) { options = this.options; }
        var distance = current - start;
        var speed = Math.abs(distance) / time;
        var deceleration = options.deceleration, swipeBounceTime = options.swipeBounceTime, swipeTime = options.swipeTime;
        var duration = Math.min(swipeTime, (speed * 2) / deceleration);
        var momentumData = {
            destination: current + ((speed * speed) / deceleration) * (distance < 0 ? -1 : 1),
            duration: duration,
            rate: 15
        };
        this.hooks.trigger(this.hooks.eventTypes.momentum, momentumData, distance);
        if (momentumData.destination < lowerMargin) {
            momentumData.destination = wrapperSize
                ? Math.max(lowerMargin - wrapperSize / 4, lowerMargin - (wrapperSize / momentumData.rate) * speed)
                : lowerMargin;
            momentumData.duration = swipeBounceTime;
        }
        else if (momentumData.destination > upperMargin) {
            momentumData.destination = wrapperSize
                ? Math.min(upperMargin + wrapperSize / 4, upperMargin + (wrapperSize / momentumData.rate) * speed)
                : upperMargin;
            momentumData.duration = swipeBounceTime;
        }
        momentumData.destination = Math.round(momentumData.destination);
        return momentumData;
    };
    Behavior.prototype.updateDirection = function () {
        var absDist = this.currentPos - this.absStartPos;
        this.setDirection(absDist);
    };
    Behavior.prototype.refresh = function (content) {
        var _a = this.options.rect, size = _a.size, position = _a.position;
        var isWrapperStatic = window.getComputedStyle(this.wrapper, null).position === 'static';
        // Force reflow
        var wrapperRect = getRect(this.wrapper);
        // use client is more fair than offset
        this.wrapperSize = this.wrapper[size === 'width' ? 'clientWidth' : 'clientHeight'];
        this.setContent(content);
        var contentRect = getRect(this.content);
        this.contentSize = contentRect[size];
        this.relativeOffset = contentRect[position];
        /* istanbul ignore if  */
        if (isWrapperStatic) {
            this.relativeOffset -= wrapperRect[position];
        }
        this.computeBoundary();
        this.setDirection(0 /* Default */);
    };
    Behavior.prototype.setContent = function (content) {
        if (content !== this.content) {
            this.content = content;
            this.resetState();
        }
    };
    Behavior.prototype.resetState = function () {
        this.currentPos = 0;
        this.startPos = 0;
        this.dist = 0;
        this.setDirection(0 /* Default */);
        this.setMovingDirection(0 /* Default */);
        this.resetStartPos();
    };
    Behavior.prototype.computeBoundary = function () {
        this.hooks.trigger(this.hooks.eventTypes.beforeComputeBoundary);
        var boundary = {
            minScrollPos: 0,
            maxScrollPos: this.wrapperSize - this.contentSize
        };
        if (boundary.maxScrollPos < 0) {
            boundary.maxScrollPos -= this.relativeOffset;
            if (this.options.specifiedIndexAsContent === 0) {
                boundary.minScrollPos = -this.relativeOffset;
            }
        }
        this.hooks.trigger(this.hooks.eventTypes.computeBoundary, boundary);
        this.minScrollPos = boundary.minScrollPos;
        this.maxScrollPos = boundary.maxScrollPos;
        this.hasScroll =
            this.options.scrollable && this.maxScrollPos < this.minScrollPos;
        if (!this.hasScroll && this.minScrollPos < this.maxScrollPos) {
            this.maxScrollPos = this.minScrollPos;
            this.contentSize = this.wrapperSize;
        }
    };
    Behavior.prototype.updatePosition = function (pos) {
        this.currentPos = pos;
    };
    Behavior.prototype.getCurrentPos = function () {
        return this.currentPos;
    };
    Behavior.prototype.checkInBoundary = function () {
        var position = this.adjustPosition(this.currentPos);
        var inBoundary = position === this.getCurrentPos();
        return {
            position: position,
            inBoundary: inBoundary
        };
    };
    // adjust position when out of boundary
    Behavior.prototype.adjustPosition = function (pos) {
        if (!this.hasScroll &&
            !this.hooks.trigger(this.hooks.eventTypes.ignoreHasScroll)) {
            pos = this.minScrollPos;
        }
        else if (pos > this.minScrollPos) {
            pos = this.minScrollPos;
        }
        else if (pos < this.maxScrollPos) {
            pos = this.maxScrollPos;
        }
        return pos;
    };
    Behavior.prototype.updateStartPos = function () {
        this.startPos = this.currentPos;
    };
    Behavior.prototype.updateAbsStartPos = function () {
        this.absStartPos = this.currentPos;
    };
    Behavior.prototype.resetStartPos = function () {
        this.updateStartPos();
        this.updateAbsStartPos();
    };
    Behavior.prototype.getAbsDist = function (delta) {
        this.dist += delta;
        return Math.abs(this.dist);
    };
    Behavior.prototype.destroy = function () {
        this.hooks.destroy();
    };
    return Behavior;
}());

var _a, _b, _c, _d;
var PassthroughHandlers = (_a = {},
    _a["yes" /* Yes */] = function (e) {
        return true;
    },
    _a["no" /* No */] = function (e) {
        e.preventDefault();
        return false;
    },
    _a);
var DirectionMap = (_b = {},
    _b["horizontal" /* Horizontal */] = (_c = {},
        _c["yes" /* Yes */] = "horizontal" /* Horizontal */,
        _c["no" /* No */] = "vertical" /* Vertical */,
        _c),
    _b["vertical" /* Vertical */] = (_d = {},
        _d["yes" /* Yes */] = "vertical" /* Vertical */,
        _d["no" /* No */] = "horizontal" /* Horizontal */,
        _d),
    _b);
var DirectionLockAction = /** @class */ (function () {
    function DirectionLockAction(directionLockThreshold, freeScroll, eventPassthrough) {
        this.directionLockThreshold = directionLockThreshold;
        this.freeScroll = freeScroll;
        this.eventPassthrough = eventPassthrough;
        this.reset();
    }
    DirectionLockAction.prototype.reset = function () {
        this.directionLocked = "" /* Default */;
    };
    DirectionLockAction.prototype.checkMovingDirection = function (absDistX, absDistY, e) {
        this.computeDirectionLock(absDistX, absDistY);
        return this.handleEventPassthrough(e);
    };
    DirectionLockAction.prototype.adjustDelta = function (deltaX, deltaY) {
        if (this.directionLocked === "horizontal" /* Horizontal */) {
            deltaY = 0;
        }
        else if (this.directionLocked === "vertical" /* Vertical */) {
            deltaX = 0;
        }
        return {
            deltaX: deltaX,
            deltaY: deltaY
        };
    };
    DirectionLockAction.prototype.computeDirectionLock = function (absDistX, absDistY) {
        // If you are scrolling in one direction, lock it
        if (this.directionLocked === "" /* Default */ && !this.freeScroll) {
            if (absDistX > absDistY + this.directionLockThreshold) {
                this.directionLocked = "horizontal" /* Horizontal */; // lock horizontally
            }
            else if (absDistY >= absDistX + this.directionLockThreshold) {
                this.directionLocked = "vertical" /* Vertical */; // lock vertically
            }
            else {
                this.directionLocked = "none" /* None */; // no lock
            }
        }
    };
    DirectionLockAction.prototype.handleEventPassthrough = function (e) {
        var handleMap = DirectionMap[this.directionLocked];
        if (handleMap) {
            if (this.eventPassthrough === handleMap["yes" /* Yes */]) {
                return PassthroughHandlers["yes" /* Yes */](e);
            }
            else if (this.eventPassthrough === handleMap["no" /* No */]) {
                return PassthroughHandlers["no" /* No */](e);
            }
        }
        return false;
    };
    return DirectionLockAction;
}());

var applyQuadrantTransformation = function (deltaX, deltaY, quadrant) {
    if (quadrant === 2 /* Second */) {
        return [deltaY, -deltaX];
    }
    else if (quadrant === 3 /* Third */) {
        return [-deltaX, -deltaY];
    }
    else if (quadrant === 4 /* Forth */) {
        return [-deltaY, deltaX];
    }
    else {
        return [deltaX, deltaY];
    }
};
var ScrollerActions = /** @class */ (function () {
    function ScrollerActions(scrollBehaviorX, scrollBehaviorY, actionsHandler, animater, options) {
        this.hooks = new EventEmitter([
            'start',
            'beforeMove',
            'scrollStart',
            'scroll',
            'beforeEnd',
            'end',
            'scrollEnd',
            'contentNotMoved',
            'detectMovingDirection',
            'coordinateTransformation',
        ]);
        this.scrollBehaviorX = scrollBehaviorX;
        this.scrollBehaviorY = scrollBehaviorY;
        this.actionsHandler = actionsHandler;
        this.animater = animater;
        this.options = options;
        this.directionLockAction = new DirectionLockAction(options.directionLockThreshold, options.freeScroll, options.eventPassthrough);
        this.enabled = true;
        this.bindActionsHandler();
    }
    ScrollerActions.prototype.bindActionsHandler = function () {
        var _this = this;
        // [mouse|touch]start event
        this.actionsHandler.hooks.on(this.actionsHandler.hooks.eventTypes.start, function (e) {
            if (!_this.enabled)
                return true;
            return _this.handleStart(e);
        });
        // [mouse|touch]move event
        this.actionsHandler.hooks.on(this.actionsHandler.hooks.eventTypes.move, function (_a) {
            var deltaX = _a.deltaX, deltaY = _a.deltaY, e = _a.e;
            if (!_this.enabled)
                return true;
            var _b = applyQuadrantTransformation(deltaX, deltaY, _this.options.quadrant), transformateDeltaX = _b[0], transformateDeltaY = _b[1];
            var transformateDeltaData = {
                deltaX: transformateDeltaX,
                deltaY: transformateDeltaY,
            };
            _this.hooks.trigger(_this.hooks.eventTypes.coordinateTransformation, transformateDeltaData);
            return _this.handleMove(transformateDeltaData.deltaX, transformateDeltaData.deltaY, e);
        });
        // [mouse|touch]end event
        this.actionsHandler.hooks.on(this.actionsHandler.hooks.eventTypes.end, function (e) {
            if (!_this.enabled)
                return true;
            return _this.handleEnd(e);
        });
        // click
        this.actionsHandler.hooks.on(this.actionsHandler.hooks.eventTypes.click, function (e) {
            // handle native click event
            if (_this.enabled && !e._constructed) {
                _this.handleClick(e);
            }
        });
    };
    ScrollerActions.prototype.handleStart = function (e) {
        var timestamp = getNow();
        this.fingerMoved = false;
        this.contentMoved = false;
        this.startTime = timestamp;
        this.directionLockAction.reset();
        this.scrollBehaviorX.start();
        this.scrollBehaviorY.start();
        // force stopping last transition or animation
        this.animater.doStop();
        this.scrollBehaviorX.resetStartPos();
        this.scrollBehaviorY.resetStartPos();
        this.hooks.trigger(this.hooks.eventTypes.start, e);
    };
    ScrollerActions.prototype.handleMove = function (deltaX, deltaY, e) {
        if (this.hooks.trigger(this.hooks.eventTypes.beforeMove, e)) {
            return;
        }
        var absDistX = this.scrollBehaviorX.getAbsDist(deltaX);
        var absDistY = this.scrollBehaviorY.getAbsDist(deltaY);
        var timestamp = getNow();
        // We need to move at least momentumLimitDistance pixels
        // for the scrolling to initiate
        if (this.checkMomentum(absDistX, absDistY, timestamp)) {
            return true;
        }
        if (this.directionLockAction.checkMovingDirection(absDistX, absDistY, e)) {
            this.actionsHandler.setInitiated();
            return true;
        }
        var delta = this.directionLockAction.adjustDelta(deltaX, deltaY);
        var prevX = this.scrollBehaviorX.getCurrentPos();
        var newX = this.scrollBehaviorX.move(delta.deltaX);
        var prevY = this.scrollBehaviorY.getCurrentPos();
        var newY = this.scrollBehaviorY.move(delta.deltaY);
        if (this.hooks.trigger(this.hooks.eventTypes.detectMovingDirection)) {
            return;
        }
        if (!this.fingerMoved) {
            this.fingerMoved = true;
        }
        var positionChanged = newX !== prevX || newY !== prevY;
        if (!this.contentMoved && !positionChanged) {
            this.hooks.trigger(this.hooks.eventTypes.contentNotMoved);
        }
        if (!this.contentMoved && positionChanged) {
            this.contentMoved = true;
            this.hooks.trigger(this.hooks.eventTypes.scrollStart);
        }
        if (this.contentMoved && positionChanged) {
            this.animater.translate({
                x: newX,
                y: newY,
            });
            this.dispatchScroll(timestamp);
        }
    };
    ScrollerActions.prototype.dispatchScroll = function (timestamp) {
        // dispatch scroll in interval time
        if (timestamp - this.startTime > this.options.momentumLimitTime) {
            // refresh time and starting position to initiate a momentum
            this.startTime = timestamp;
            this.scrollBehaviorX.updateStartPos();
            this.scrollBehaviorY.updateStartPos();
            if (this.options.probeType === 1 /* Throttle */) {
                this.hooks.trigger(this.hooks.eventTypes.scroll, this.getCurrentPos());
            }
        }
        // dispatch scroll all the time
        if (this.options.probeType > 1 /* Throttle */) {
            this.hooks.trigger(this.hooks.eventTypes.scroll, this.getCurrentPos());
        }
    };
    ScrollerActions.prototype.checkMomentum = function (absDistX, absDistY, timestamp) {
        return (timestamp - this.endTime > this.options.momentumLimitTime &&
            absDistY < this.options.momentumLimitDistance &&
            absDistX < this.options.momentumLimitDistance);
    };
    ScrollerActions.prototype.handleEnd = function (e) {
        if (this.hooks.trigger(this.hooks.eventTypes.beforeEnd, e)) {
            return;
        }
        var currentPos = this.getCurrentPos();
        this.scrollBehaviorX.updateDirection();
        this.scrollBehaviorY.updateDirection();
        if (this.hooks.trigger(this.hooks.eventTypes.end, e, currentPos)) {
            return true;
        }
        currentPos = this.ensureIntegerPos(currentPos);
        this.animater.translate(currentPos);
        this.endTime = getNow();
        var duration = this.endTime - this.startTime;
        this.hooks.trigger(this.hooks.eventTypes.scrollEnd, currentPos, duration);
    };
    ScrollerActions.prototype.ensureIntegerPos = function (currentPos) {
        this.ensuringInteger = true;
        var x = currentPos.x, y = currentPos.y;
        var _a = this.scrollBehaviorX, minScrollPosX = _a.minScrollPos, maxScrollPosX = _a.maxScrollPos;
        var _b = this.scrollBehaviorY, minScrollPosY = _b.minScrollPos, maxScrollPosY = _b.maxScrollPos;
        x = x > 0 ? Math.ceil(x) : Math.floor(x);
        y = y > 0 ? Math.ceil(y) : Math.floor(y);
        x = between(x, maxScrollPosX, minScrollPosX);
        y = between(y, maxScrollPosY, minScrollPosY);
        return { x: x, y: y };
    };
    ScrollerActions.prototype.handleClick = function (e) {
        if (!preventDefaultExceptionFn(e.target, this.options.preventDefaultException)) {
            e.preventDefault();
            e.stopPropagation();
        }
    };
    ScrollerActions.prototype.getCurrentPos = function () {
        return {
            x: this.scrollBehaviorX.getCurrentPos(),
            y: this.scrollBehaviorY.getCurrentPos(),
        };
    };
    ScrollerActions.prototype.refresh = function () {
        this.endTime = 0;
    };
    ScrollerActions.prototype.destroy = function () {
        this.hooks.destroy();
    };
    return ScrollerActions;
}());

function createActionsHandlerOptions(bsOptions) {
    var options = [
        'click',
        'bindToWrapper',
        'disableMouse',
        'disableTouch',
        'preventDefault',
        'stopPropagation',
        'tagException',
        'preventDefaultException',
        'autoEndDistance',
    ].reduce(function (prev, cur) {
        prev[cur] = bsOptions[cur];
        return prev;
    }, {});
    return options;
}
function createBehaviorOptions(bsOptions, extraProp, bounces, rect) {
    var options = [
        'momentum',
        'momentumLimitTime',
        'momentumLimitDistance',
        'deceleration',
        'swipeBounceTime',
        'swipeTime',
        'outOfBoundaryDampingFactor',
        'specifiedIndexAsContent',
    ].reduce(function (prev, cur) {
        prev[cur] = bsOptions[cur];
        return prev;
    }, {});
    // add extra property
    options.scrollable = !!bsOptions[extraProp];
    options.bounces = bounces;
    options.rect = rect;
    return options;
}

function bubbling(source, target, events) {
    events.forEach(function (event) {
        var sourceEvent;
        var targetEvent;
        if (typeof event === 'string') {
            sourceEvent = targetEvent = event;
        }
        else {
            sourceEvent = event.source;
            targetEvent = event.target;
        }
        source.on(sourceEvent, function () {
            var args = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                args[_i] = arguments[_i];
            }
            return target.trigger.apply(target, __spreadArrays([targetEvent], args));
        });
    });
}

function isSamePoint(startPoint, endPoint) {
    // keys of startPoint and endPoint should be equal
    var keys = Object.keys(startPoint);
    for (var _i = 0, keys_1 = keys; _i < keys_1.length; _i++) {
        var key = keys_1[_i];
        if (startPoint[key] !== endPoint[key])
            return false;
    }
    return true;
}

var MIN_SCROLL_DISTANCE = 1;
var Scroller = /** @class */ (function () {
    function Scroller(wrapper, content, options) {
        this.wrapper = wrapper;
        this.content = content;
        this.resizeTimeout = 0;
        this.hooks = new EventEmitter([
            'beforeStart',
            'beforeMove',
            'beforeScrollStart',
            'scrollStart',
            'scroll',
            'beforeEnd',
            'scrollEnd',
            'resize',
            'touchEnd',
            'end',
            'flick',
            'scrollCancel',
            'momentum',
            'scrollTo',
            'minDistanceScroll',
            'scrollToElement',
            'beforeRefresh',
        ]);
        this.options = options;
        var _a = this.options.bounce, left = _a.left, right = _a.right, top = _a.top, bottom = _a.bottom;
        // direction X
        this.scrollBehaviorX = new Behavior(wrapper, content, createBehaviorOptions(options, 'scrollX', [left, right], {
            size: 'width',
            position: 'left',
        }));
        // direction Y
        this.scrollBehaviorY = new Behavior(wrapper, content, createBehaviorOptions(options, 'scrollY', [top, bottom], {
            size: 'height',
            position: 'top',
        }));
        this.translater = new Translater(this.content);
        this.animater = createAnimater(this.content, this.translater, this.options);
        this.actionsHandler = new ActionsHandler(this.options.bindToTarget ? this.content : wrapper, createActionsHandlerOptions(this.options));
        this.actions = new ScrollerActions(this.scrollBehaviorX, this.scrollBehaviorY, this.actionsHandler, this.animater, this.options);
        var resizeHandler = this.resize.bind(this);
        this.resizeRegister = new EventRegister(window, [
            {
                name: 'orientationchange',
                handler: resizeHandler,
            },
            {
                name: 'resize',
                handler: resizeHandler,
            },
        ]);
        this.registerTransitionEnd();
        this.init();
    }
    Scroller.prototype.init = function () {
        var _this = this;
        this.bindTranslater();
        this.bindAnimater();
        this.bindActions();
        // enable pointer events when scrolling ends
        this.hooks.on(this.hooks.eventTypes.scrollEnd, function () {
            _this.togglePointerEvents(true);
        });
    };
    Scroller.prototype.registerTransitionEnd = function () {
        this.transitionEndRegister = new EventRegister(this.content, [
            {
                name: style.transitionEnd,
                handler: this.transitionEnd.bind(this),
            },
        ]);
    };
    Scroller.prototype.bindTranslater = function () {
        var _this = this;
        var hooks = this.translater.hooks;
        hooks.on(hooks.eventTypes.beforeTranslate, function (transformStyle) {
            if (_this.options.translateZ) {
                transformStyle.push(_this.options.translateZ);
            }
        });
        // disable pointer events when scrolling
        hooks.on(hooks.eventTypes.translate, function (pos) {
            var prevPos = _this.getCurrentPos();
            _this.updatePositions(pos);
            // scrollEnd will dispatch when scroll is force stopping in touchstart handler
            // so in touchend handler, don't toggle pointer-events
            if (_this.actions.ensuringInteger === true) {
                _this.actions.ensuringInteger = false;
                return;
            }
            // a valid translate
            if (pos.x !== prevPos.x || pos.y !== prevPos.y) {
                _this.togglePointerEvents(false);
            }
        });
    };
    Scroller.prototype.bindAnimater = function () {
        var _this = this;
        // reset position
        this.animater.hooks.on(this.animater.hooks.eventTypes.end, function (pos) {
            if (!_this.resetPosition(_this.options.bounceTime)) {
                _this.animater.setPending(false);
                _this.hooks.trigger(_this.hooks.eventTypes.scrollEnd, pos);
            }
        });
        bubbling(this.animater.hooks, this.hooks, [
            {
                source: this.animater.hooks.eventTypes.move,
                target: this.hooks.eventTypes.scroll,
            },
            {
                source: this.animater.hooks.eventTypes.forceStop,
                target: this.hooks.eventTypes.scrollEnd,
            },
        ]);
    };
    Scroller.prototype.bindActions = function () {
        var _this = this;
        var actions = this.actions;
        bubbling(actions.hooks, this.hooks, [
            {
                source: actions.hooks.eventTypes.start,
                target: this.hooks.eventTypes.beforeStart,
            },
            {
                source: actions.hooks.eventTypes.start,
                target: this.hooks.eventTypes.beforeScrollStart,
            },
            {
                source: actions.hooks.eventTypes.beforeMove,
                target: this.hooks.eventTypes.beforeMove,
            },
            {
                source: actions.hooks.eventTypes.scrollStart,
                target: this.hooks.eventTypes.scrollStart,
            },
            {
                source: actions.hooks.eventTypes.scroll,
                target: this.hooks.eventTypes.scroll,
            },
            {
                source: actions.hooks.eventTypes.beforeEnd,
                target: this.hooks.eventTypes.beforeEnd,
            },
        ]);
        actions.hooks.on(actions.hooks.eventTypes.end, function (e, pos) {
            _this.hooks.trigger(_this.hooks.eventTypes.touchEnd, pos);
            if (_this.hooks.trigger(_this.hooks.eventTypes.end, pos)) {
                return true;
            }
            // check if it is a click operation
            if (!actions.fingerMoved) {
                _this.hooks.trigger(_this.hooks.eventTypes.scrollCancel);
                if (_this.checkClick(e)) {
                    return true;
                }
            }
            // reset if we are outside of the boundaries
            if (_this.resetPosition(_this.options.bounceTime, ease.bounce)) {
                _this.animater.setForceStopped(false);
                return true;
            }
        });
        actions.hooks.on(actions.hooks.eventTypes.scrollEnd, function (pos, duration) {
            var deltaX = Math.abs(pos.x - _this.scrollBehaviorX.startPos);
            var deltaY = Math.abs(pos.y - _this.scrollBehaviorY.startPos);
            if (_this.checkFlick(duration, deltaX, deltaY)) {
                _this.animater.setForceStopped(false);
                _this.hooks.trigger(_this.hooks.eventTypes.flick);
                return;
            }
            if (_this.momentum(pos, duration)) {
                _this.animater.setForceStopped(false);
                return;
            }
            if (actions.contentMoved) {
                _this.hooks.trigger(_this.hooks.eventTypes.scrollEnd, pos);
            }
            if (_this.animater.forceStopped) {
                _this.animater.setForceStopped(false);
            }
        });
    };
    Scroller.prototype.checkFlick = function (duration, deltaX, deltaY) {
        var flickMinMovingDistance = 1; // distinguish flick from click
        if (this.hooks.events.flick.length > 1 &&
            duration < this.options.flickLimitTime &&
            deltaX < this.options.flickLimitDistance &&
            deltaY < this.options.flickLimitDistance &&
            (deltaY > flickMinMovingDistance || deltaX > flickMinMovingDistance)) {
            return true;
        }
    };
    Scroller.prototype.momentum = function (pos, duration) {
        var meta = {
            time: 0,
            easing: ease.swiper,
            newX: pos.x,
            newY: pos.y,
        };
        // start momentum animation if needed
        var momentumX = this.scrollBehaviorX.end(duration);
        var momentumY = this.scrollBehaviorY.end(duration);
        meta.newX = isUndef(momentumX.destination)
            ? meta.newX
            : momentumX.destination;
        meta.newY = isUndef(momentumY.destination)
            ? meta.newY
            : momentumY.destination;
        meta.time = Math.max(momentumX.duration, momentumY.duration);
        this.hooks.trigger(this.hooks.eventTypes.momentum, meta, this);
        // when x or y changed, do momentum animation now!
        if (meta.newX !== pos.x || meta.newY !== pos.y) {
            // change easing function when scroller goes out of the boundaries
            if (meta.newX > this.scrollBehaviorX.minScrollPos ||
                meta.newX < this.scrollBehaviorX.maxScrollPos ||
                meta.newY > this.scrollBehaviorY.minScrollPos ||
                meta.newY < this.scrollBehaviorY.maxScrollPos) {
                meta.easing = ease.swipeBounce;
            }
            this.scrollTo(meta.newX, meta.newY, meta.time, meta.easing);
            return true;
        }
    };
    Scroller.prototype.checkClick = function (e) {
        var cancelable = {
            preventClick: this.animater.forceStopped,
        };
        // we scrolled less than momentumLimitDistance pixels
        if (this.hooks.trigger(this.hooks.eventTypes.checkClick)) {
            this.animater.setForceStopped(false);
            return true;
        }
        if (!cancelable.preventClick) {
            var _dblclick = this.options.dblclick;
            var dblclickTrigged = false;
            if (_dblclick && this.lastClickTime) {
                var _a = _dblclick.delay, delay = _a === void 0 ? 300 : _a;
                if (getNow() - this.lastClickTime < delay) {
                    dblclickTrigged = true;
                    dblclick(e);
                }
            }
            if (this.options.tap) {
                tap(e, this.options.tap);
            }
            if (this.options.click &&
                !preventDefaultExceptionFn(e.target, this.options.preventDefaultException)) {
                click(e);
            }
            this.lastClickTime = dblclickTrigged ? null : getNow();
            return true;
        }
        return false;
    };
    Scroller.prototype.resize = function () {
        var _this = this;
        if (!this.actions.enabled) {
            return;
        }
        // fix a scroll problem under Android condition
        /* istanbul ignore if  */
        if (isAndroid) {
            this.wrapper.scrollTop = 0;
        }
        clearTimeout(this.resizeTimeout);
        this.resizeTimeout = window.setTimeout(function () {
            _this.hooks.trigger(_this.hooks.eventTypes.resize);
        }, this.options.resizePolling);
    };
    /* istanbul ignore next */
    Scroller.prototype.transitionEnd = function (e) {
        if (e.target !== this.content || !this.animater.pending) {
            return;
        }
        var animater = this.animater;
        animater.transitionTime();
        if (!this.resetPosition(this.options.bounceTime, ease.bounce)) {
            this.animater.setPending(false);
            if (this.options.probeType !== 3 /* Realtime */) {
                this.hooks.trigger(this.hooks.eventTypes.scrollEnd, this.getCurrentPos());
            }
        }
    };
    Scroller.prototype.togglePointerEvents = function (enabled) {
        if (enabled === void 0) { enabled = true; }
        var el = this.content.children.length
            ? this.content.children
            : [this.content];
        var pointerEvents = enabled ? 'auto' : 'none';
        for (var i = 0; i < el.length; i++) {
            var node = el[i];
            // ignore BetterScroll instance's wrapper DOM
            /* istanbul ignore if  */
            if (node.isBScrollContainer) {
                continue;
            }
            node.style.pointerEvents = pointerEvents;
        }
    };
    Scroller.prototype.refresh = function (content) {
        var contentChanged = this.setContent(content);
        this.hooks.trigger(this.hooks.eventTypes.beforeRefresh);
        this.scrollBehaviorX.refresh(content);
        this.scrollBehaviorY.refresh(content);
        if (contentChanged) {
            this.translater.setContent(content);
            this.animater.setContent(content);
            this.transitionEndRegister.destroy();
            this.registerTransitionEnd();
            if (this.options.bindToTarget) {
                this.actionsHandler.setContent(content);
            }
        }
        this.actions.refresh();
        this.wrapperOffset = offset(this.wrapper);
    };
    Scroller.prototype.setContent = function (content) {
        var contentChanged = content !== this.content;
        if (contentChanged) {
            this.content = content;
        }
        return contentChanged;
    };
    Scroller.prototype.scrollBy = function (deltaX, deltaY, time, easing) {
        if (time === void 0) { time = 0; }
        var _a = this.getCurrentPos(), x = _a.x, y = _a.y;
        easing = !easing ? ease.bounce : easing;
        deltaX += x;
        deltaY += y;
        this.scrollTo(deltaX, deltaY, time, easing);
    };
    Scroller.prototype.scrollTo = function (x, y, time, easing, extraTransform) {
        if (time === void 0) { time = 0; }
        if (easing === void 0) { easing = ease.bounce; }
        if (extraTransform === void 0) { extraTransform = {
            start: {},
            end: {},
        }; }
        var easingFn = this.options.useTransition ? easing.style : easing.fn;
        var currentPos = this.getCurrentPos();
        var startPoint = __assign({ x: currentPos.x, y: currentPos.y }, extraTransform.start);
        var endPoint = __assign({ x: x,
            y: y }, extraTransform.end);
        this.hooks.trigger(this.hooks.eventTypes.scrollTo, endPoint);
        // it is an useless move
        if (isSamePoint(startPoint, endPoint))
            return;
        var deltaX = Math.abs(endPoint.x - startPoint.x);
        var deltaY = Math.abs(endPoint.y - startPoint.y);
        // considering of browser compatibility for decimal transform value
        // force translating immediately
        if (deltaX < MIN_SCROLL_DISTANCE && deltaY < MIN_SCROLL_DISTANCE) {
            time = 0;
            this.hooks.trigger(this.hooks.eventTypes.minDistanceScroll);
        }
        this.animater.move(startPoint, endPoint, time, easingFn);
    };
    Scroller.prototype.scrollToElement = function (el, time, offsetX, offsetY, easing) {
        var targetEle = getElement(el);
        var pos = offset(targetEle);
        var getOffset = function (offset, size, wrapperSize) {
            if (typeof offset === 'number') {
                return offset;
            }
            // if offsetX/Y are true we center the element to the screen
            return offset ? Math.round(size / 2 - wrapperSize / 2) : 0;
        };
        offsetX = getOffset(offsetX, targetEle.offsetWidth, this.wrapper.offsetWidth);
        offsetY = getOffset(offsetY, targetEle.offsetHeight, this.wrapper.offsetHeight);
        var getPos = function (pos, wrapperPos, offset, scrollBehavior) {
            pos -= wrapperPos;
            pos = scrollBehavior.adjustPosition(pos - offset);
            return pos;
        };
        pos.left = getPos(pos.left, this.wrapperOffset.left, offsetX, this.scrollBehaviorX);
        pos.top = getPos(pos.top, this.wrapperOffset.top, offsetY, this.scrollBehaviorY);
        if (this.hooks.trigger(this.hooks.eventTypes.scrollToElement, targetEle, pos)) {
            return;
        }
        this.scrollTo(pos.left, pos.top, time, easing);
    };
    Scroller.prototype.resetPosition = function (time, easing) {
        if (time === void 0) { time = 0; }
        if (easing === void 0) { easing = ease.bounce; }
        var _a = this.scrollBehaviorX.checkInBoundary(), x = _a.position, xInBoundary = _a.inBoundary;
        var _b = this.scrollBehaviorY.checkInBoundary(), y = _b.position, yInBoundary = _b.inBoundary;
        if (xInBoundary && yInBoundary) {
            return false;
        }
        /* istanbul ignore if  */
        if (isIOSBadVersion) {
            // fix ios 13.4 bouncing
            // see it in issues 982
            this.reflow();
        }
        // out of boundary
        this.scrollTo(x, y, time, easing);
        return true;
    };
    /* istanbul ignore next */
    Scroller.prototype.reflow = function () {
        this._reflow = this.content.offsetHeight;
    };
    Scroller.prototype.updatePositions = function (pos) {
        this.scrollBehaviorX.updatePosition(pos.x);
        this.scrollBehaviorY.updatePosition(pos.y);
    };
    Scroller.prototype.getCurrentPos = function () {
        return this.actions.getCurrentPos();
    };
    Scroller.prototype.enable = function () {
        this.actions.enabled = true;
    };
    Scroller.prototype.disable = function () {
        cancelAnimationFrame(this.animater.timer);
        this.actions.enabled = false;
    };
    Scroller.prototype.destroy = function () {
        var _this = this;
        var keys = [
            'resizeRegister',
            'transitionEndRegister',
            'actionsHandler',
            'actions',
            'hooks',
            'animater',
            'translater',
            'scrollBehaviorX',
            'scrollBehaviorY',
        ];
        keys.forEach(function (key) { return _this[key].destroy(); });
    };
    return Scroller;
}());

var BScrollConstructor = /** @class */ (function (_super) {
    __extends(BScrollConstructor, _super);
    function BScrollConstructor(el, options) {
        var _this = _super.call(this, [
            'refresh',
            'contentChanged',
            'enable',
            'disable',
            'beforeScrollStart',
            'scrollStart',
            'scroll',
            'scrollEnd',
            'scrollCancel',
            'touchEnd',
            'flick',
            'destroy'
        ]) || this;
        var wrapper = getElement(el);
        if (!wrapper) {
            warn('Can not resolve the wrapper DOM.');
            return _this;
        }
        _this.plugins = {};
        _this.options = new OptionsConstructor().merge(options).process();
        if (!_this.setContent(wrapper).valid) {
            return _this;
        }
        _this.hooks = new EventEmitter([
            'refresh',
            'enable',
            'disable',
            'destroy',
            'beforeInitialScrollTo',
            'contentChanged'
        ]);
        _this.init(wrapper);
        return _this;
    }
    BScrollConstructor.use = function (ctor) {
        var name = ctor.pluginName;
        var installed = BScrollConstructor.plugins.some(function (plugin) { return ctor === plugin.ctor; });
        if (installed)
            return BScrollConstructor;
        if (isUndef(name)) {
            warn("Plugin Class must specify plugin's name in static property by 'pluginName' field.");
            return BScrollConstructor;
        }
        BScrollConstructor.pluginsMap[name] = true;
        BScrollConstructor.plugins.push({
            name: name,
            applyOrder: ctor.applyOrder,
            ctor: ctor
        });
        return BScrollConstructor;
    };
    BScrollConstructor.prototype.setContent = function (wrapper) {
        var contentChanged = false;
        var valid = true;
        var content = wrapper.children[this.options.specifiedIndexAsContent];
        if (!content) {
            warn('The wrapper need at least one child element to be content element to scroll.');
            valid = false;
        }
        else {
            contentChanged = this.content !== content;
            if (contentChanged) {
                this.content = content;
            }
        }
        return {
            valid: valid,
            contentChanged: contentChanged
        };
    };
    BScrollConstructor.prototype.init = function (wrapper) {
        var _this = this;
        this.wrapper = wrapper;
        // mark wrapper to recognize bs instance by DOM attribute
        wrapper.isBScrollContainer = true;
        this.scroller = new Scroller(wrapper, this.content, this.options);
        this.scroller.hooks.on(this.scroller.hooks.eventTypes.resize, function () {
            _this.refresh();
        });
        this.eventBubbling();
        this.handleAutoBlur();
        this.enable();
        this.proxy(propertiesConfig$7);
        this.applyPlugins();
        // maybe boundary has changed, should refresh
        this.refreshWithoutReset(this.content);
        var _a = this.options, startX = _a.startX, startY = _a.startY;
        var position = {
            x: startX,
            y: startY
        };
        // maybe plugins want to control scroll position
        if (this.hooks.trigger(this.hooks.eventTypes.beforeInitialScrollTo, position)) {
            return;
        }
        this.scroller.scrollTo(position.x, position.y);
    };
    BScrollConstructor.prototype.applyPlugins = function () {
        var _this = this;
        var options = this.options;
        BScrollConstructor.plugins
            .sort(function (a, b) {
            var _a;
            var applyOrderMap = (_a = {},
                _a["pre" /* Pre */] = -1,
                _a["post" /* Post */] = 1,
                _a);
            var aOrder = a.applyOrder ? applyOrderMap[a.applyOrder] : 0;
            var bOrder = b.applyOrder ? applyOrderMap[b.applyOrder] : 0;
            return aOrder - bOrder;
        })
            .forEach(function (item) {
            var ctor = item.ctor;
            if (options[item.name] && typeof ctor === 'function') {
                _this.plugins[item.name] = new ctor(_this);
            }
        });
    };
    BScrollConstructor.prototype.handleAutoBlur = function () {
        /* istanbul ignore if  */
        if (this.options.autoBlur) {
            this.on(this.eventTypes.beforeScrollStart, function () {
                var activeElement = document.activeElement;
                if (activeElement &&
                    (activeElement.tagName === 'INPUT' ||
                        activeElement.tagName === 'TEXTAREA')) {
                    activeElement.blur();
                }
            });
        }
    };
    BScrollConstructor.prototype.eventBubbling = function () {
        bubbling(this.scroller.hooks, this, [
            this.eventTypes.beforeScrollStart,
            this.eventTypes.scrollStart,
            this.eventTypes.scroll,
            this.eventTypes.scrollEnd,
            this.eventTypes.scrollCancel,
            this.eventTypes.touchEnd,
            this.eventTypes.flick
        ]);
    };
    BScrollConstructor.prototype.refreshWithoutReset = function (content) {
        this.scroller.refresh(content);
        this.hooks.trigger(this.hooks.eventTypes.refresh, content);
        this.trigger(this.eventTypes.refresh, content);
    };
    BScrollConstructor.prototype.proxy = function (propertiesConfig) {
        var _this = this;
        propertiesConfig.forEach(function (_a) {
            var key = _a.key, sourceKey = _a.sourceKey;
            propertiesProxy(_this, sourceKey, key);
        });
    };
    BScrollConstructor.prototype.refresh = function () {
        var _a = this.setContent(this.wrapper), contentChanged = _a.contentChanged, valid = _a.valid;
        if (valid) {
            var content = this.content;
            this.refreshWithoutReset(content);
            if (contentChanged) {
                this.hooks.trigger(this.hooks.eventTypes.contentChanged, content);
                this.trigger(this.eventTypes.contentChanged, content);
            }
            this.scroller.resetPosition();
        }
    };
    BScrollConstructor.prototype.enable = function () {
        this.scroller.enable();
        this.hooks.trigger(this.hooks.eventTypes.enable);
        this.trigger(this.eventTypes.enable);
    };
    BScrollConstructor.prototype.disable = function () {
        this.scroller.disable();
        this.hooks.trigger(this.hooks.eventTypes.disable);
        this.trigger(this.eventTypes.disable);
    };
    BScrollConstructor.prototype.destroy = function () {
        this.hooks.trigger(this.hooks.eventTypes.destroy);
        this.trigger(this.eventTypes.destroy);
        this.scroller.destroy();
    };
    BScrollConstructor.prototype.eventRegister = function (names) {
        this.registerType(names);
    };
    BScrollConstructor.plugins = [];
    BScrollConstructor.pluginsMap = {};
    return BScrollConstructor;
}(EventEmitter));
function createBScroll(el, options) {
    var bs = new BScrollConstructor(el, options);
    return bs;
}
createBScroll.use = BScrollConstructor.use;
createBScroll.plugins = BScrollConstructor.plugins;
createBScroll.pluginsMap = BScrollConstructor.pluginsMap;
var BScroll = createBScroll;

var MouseWheel = /** @class */ (function () {
    function MouseWheel(scroll) {
        this.scroll = scroll;
        this.wheelEndTimer = 0;
        this.wheelMoveTimer = 0;
        this.wheelStart = false;
        this.init();
    }
    MouseWheel.prototype.init = function () {
        this.handleBScroll();
        this.handleOptions();
        this.handleHooks();
        this.registerEvent();
    };
    MouseWheel.prototype.handleBScroll = function () {
        this.scroll.registerType([
            'alterOptions',
            'mousewheelStart',
            'mousewheelMove',
            'mousewheelEnd',
        ]);
    };
    MouseWheel.prototype.handleOptions = function () {
        var userOptions = (this.scroll.options.mouseWheel === true
            ? {}
            : this.scroll.options.mouseWheel);
        var defaultOptions = {
            speed: 20,
            invert: false,
            easeTime: 300,
            discreteTime: 400,
            throttleTime: 0,
            dampingFactor: 0.1,
        };
        this.mouseWheelOpt = extend(defaultOptions, userOptions);
    };
    MouseWheel.prototype.handleHooks = function () {
        this.hooksFn = [];
        this.registerHooks(this.scroll.hooks, 'destroy', this.destroy);
    };
    MouseWheel.prototype.registerEvent = function () {
        this.eventRegister = new EventRegister(this.scroll.scroller.wrapper, [
            {
                name: 'wheel',
                handler: this.wheelHandler.bind(this),
            },
            {
                name: 'mousewheel',
                handler: this.wheelHandler.bind(this),
            },
            {
                name: 'DOMMouseScroll',
                handler: this.wheelHandler.bind(this),
            },
        ]);
    };
    MouseWheel.prototype.registerHooks = function (hooks, name, handler) {
        hooks.on(name, handler, this);
        this.hooksFn.push([hooks, name, handler]);
    };
    MouseWheel.prototype.wheelHandler = function (e) {
        if (!this.scroll.enabled) {
            return;
        }
        this.beforeHandler(e);
        // start
        if (!this.wheelStart) {
            this.wheelStartHandler(e);
            this.wheelStart = true;
        }
        // move
        var delta = this.getWheelDelta(e);
        this.wheelMoveHandler(delta);
        // end
        this.wheelEndDetector(delta);
    };
    MouseWheel.prototype.wheelStartHandler = function (e) {
        this.cleanCache();
        var _a = this.scroll.scroller, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY;
        scrollBehaviorX.setMovingDirection(0 /* Default */);
        scrollBehaviorY.setMovingDirection(0 /* Default */);
        scrollBehaviorX.setDirection(0 /* Default */);
        scrollBehaviorY.setDirection(0 /* Default */);
        this.scroll.trigger(this.scroll.eventTypes.alterOptions, this.mouseWheelOpt);
        this.scroll.trigger(this.scroll.eventTypes.mousewheelStart);
    };
    MouseWheel.prototype.cleanCache = function () {
        this.deltaCache = [];
    };
    MouseWheel.prototype.wheelMoveHandler = function (delta) {
        var _this = this;
        var _a = this.mouseWheelOpt, throttleTime = _a.throttleTime, dampingFactor = _a.dampingFactor;
        if (throttleTime && this.wheelMoveTimer) {
            this.deltaCache.push(delta);
        }
        else {
            var cachedDelta = this.deltaCache.reduce(function (prev, current) {
                return {
                    x: prev.x + current.x,
                    y: prev.y + current.y,
                };
            }, { x: 0, y: 0 });
            this.cleanCache();
            var _b = this.scroll.scroller, scrollBehaviorX = _b.scrollBehaviorX, scrollBehaviorY = _b.scrollBehaviorY;
            scrollBehaviorX.setMovingDirection(-delta.directionX);
            scrollBehaviorY.setMovingDirection(-delta.directionY);
            scrollBehaviorX.setDirection(delta.x);
            scrollBehaviorY.setDirection(delta.y);
            // when out of boundary, perform a damping scroll
            var newX = scrollBehaviorX.performDampingAlgorithm(Math.round(delta.x) + cachedDelta.x, dampingFactor);
            var newY = scrollBehaviorY.performDampingAlgorithm(Math.round(delta.y) + cachedDelta.x, dampingFactor);
            if (!this.scroll.trigger(this.scroll.eventTypes.mousewheelMove, {
                x: newX,
                y: newY,
            })) {
                var easeTime = this.getEaseTime();
                if (newX !== this.scroll.x || newY !== this.scroll.y) {
                    this.scroll.scrollTo(newX, newY, easeTime);
                }
            }
            if (throttleTime) {
                this.wheelMoveTimer = window.setTimeout(function () {
                    _this.wheelMoveTimer = 0;
                }, throttleTime);
            }
        }
    };
    MouseWheel.prototype.wheelEndDetector = function (delta) {
        var _this = this;
        window.clearTimeout(this.wheelEndTimer);
        this.wheelEndTimer = window.setTimeout(function () {
            _this.wheelStart = false;
            window.clearTimeout(_this.wheelMoveTimer);
            _this.wheelMoveTimer = 0;
            _this.scroll.trigger(_this.scroll.eventTypes.mousewheelEnd, delta);
        }, this.mouseWheelOpt.discreteTime);
    };
    MouseWheel.prototype.getWheelDelta = function (e) {
        var _a = this.mouseWheelOpt, speed = _a.speed, invert = _a.invert;
        var wheelDeltaX = 0;
        var wheelDeltaY = 0;
        var direction = invert ? -1 /* Negative */ : 1 /* Positive */;
        switch (true) {
            case 'deltaX' in e:
                if (e.deltaMode === 1) {
                    wheelDeltaX = -e.deltaX * speed;
                    wheelDeltaY = -e.deltaY * speed;
                }
                else {
                    wheelDeltaX = -e.deltaX;
                    wheelDeltaY = -e.deltaY;
                }
                break;
            case 'wheelDeltaX' in e:
                wheelDeltaX = (e.wheelDeltaX / 120) * speed;
                wheelDeltaY = (e.wheelDeltaY / 120) * speed;
                break;
            case 'wheelDelta' in e:
                wheelDeltaX = wheelDeltaY = (e.wheelDelta / 120) * speed;
                break;
            case 'detail' in e:
                wheelDeltaX = wheelDeltaY = (-e.detail / 3) * speed;
                break;
        }
        wheelDeltaX *= direction;
        wheelDeltaY *= direction;
        if (!this.scroll.hasVerticalScroll) {
            if (Math.abs(wheelDeltaY) > Math.abs(wheelDeltaX)) {
                wheelDeltaX = wheelDeltaY;
            }
            wheelDeltaY = 0;
        }
        if (!this.scroll.hasHorizontalScroll) {
            wheelDeltaX = 0;
        }
        var directionX = wheelDeltaX > 0
            ? -1 /* Negative */
            : wheelDeltaX < 0
                ? 1 /* Positive */
                : 0 /* Default */;
        var directionY = wheelDeltaY > 0
            ? -1 /* Negative */
            : wheelDeltaY < 0
                ? 1 /* Positive */
                : 0 /* Default */;
        return {
            x: wheelDeltaX,
            y: wheelDeltaY,
            directionX: directionX,
            directionY: directionY,
        };
    };
    MouseWheel.prototype.beforeHandler = function (e) {
        var _a = this.scroll.options, preventDefault = _a.preventDefault, stopPropagation = _a.stopPropagation, preventDefaultException = _a.preventDefaultException;
        if (preventDefault &&
            !preventDefaultExceptionFn(e.target, preventDefaultException)) {
            e.preventDefault();
        }
        if (stopPropagation) {
            e.stopPropagation();
        }
    };
    MouseWheel.prototype.getEaseTime = function () {
        var SAFE_EASETIME = 100;
        var easeTime = this.mouseWheelOpt.easeTime;
        // scrollEnd event will be triggered in every calling of scrollTo when easeTime is too small
        // easeTime needs to be greater than 100
        if (easeTime < SAFE_EASETIME) {
            warn("easeTime should be greater than 100." +
                "If mouseWheel easeTime is too small," +
                "scrollEnd will be triggered many times.");
        }
        return Math.max(easeTime, SAFE_EASETIME);
    };
    MouseWheel.prototype.destroy = function () {
        this.eventRegister.destroy();
        window.clearTimeout(this.wheelEndTimer);
        window.clearTimeout(this.wheelMoveTimer);
        this.hooksFn.forEach(function (item) {
            var hooks = item[0];
            var hooksName = item[1];
            var handlerFn = item[2];
            hooks.off(hooksName, handlerFn);
        });
    };
    MouseWheel.pluginName = 'mouseWheel';
    MouseWheel.applyOrder = "pre" /* Pre */;
    return MouseWheel;
}());

var ObserveDOM = /** @class */ (function () {
    function ObserveDOM(scroll) {
        this.scroll = scroll;
        this.stopObserver = false;
        this.init();
    }
    ObserveDOM.prototype.init = function () {
        this.handleMutationObserver();
        this.handleHooks();
    };
    ObserveDOM.prototype.handleMutationObserver = function () {
        var _this = this;
        if (typeof MutationObserver !== 'undefined') {
            var timer_1 = 0;
            this.observer = new MutationObserver(function (mutations) {
                _this.mutationObserverHandler(mutations, timer_1);
            });
            this.startObserve(this.observer);
        }
        else {
            this.checkDOMUpdate();
        }
    };
    ObserveDOM.prototype.handleHooks = function () {
        var _this = this;
        this.hooksFn = [];
        this.registerHooks(this.scroll.hooks, this.scroll.hooks.eventTypes.contentChanged, function () {
            _this.stopObserve();
            // launch a new mutationObserver
            _this.handleMutationObserver();
        });
        this.registerHooks(this.scroll.hooks, this.scroll.hooks.eventTypes.enable, function () {
            if (_this.stopObserver) {
                _this.handleMutationObserver();
            }
        });
        this.registerHooks(this.scroll.hooks, this.scroll.hooks.eventTypes.disable, function () {
            _this.stopObserve();
        });
        this.registerHooks(this.scroll.hooks, this.scroll.hooks.eventTypes.destroy, function () {
            _this.destroy();
        });
    };
    ObserveDOM.prototype.mutationObserverHandler = function (mutations, timer) {
        var _this = this;
        if (this.shouldNotRefresh()) {
            return;
        }
        var immediateRefresh = false;
        var deferredRefresh = false;
        for (var i = 0; i < mutations.length; i++) {
            var mutation = mutations[i];
            if (mutation.type !== 'attributes') {
                immediateRefresh = true;
                break;
            }
            else {
                if (mutation.target !== this.scroll.scroller.content) {
                    deferredRefresh = true;
                    break;
                }
            }
        }
        if (immediateRefresh) {
            this.scroll.refresh();
        }
        else if (deferredRefresh) {
            // attributes changes too often
            clearTimeout(timer);
            timer = window.setTimeout(function () {
                if (!_this.shouldNotRefresh()) {
                    _this.scroll.refresh();
                }
            }, 60);
        }
    };
    ObserveDOM.prototype.startObserve = function (observer) {
        var config = {
            attributes: true,
            childList: true,
            subtree: true,
        };
        observer.observe(this.scroll.scroller.content, config);
    };
    ObserveDOM.prototype.shouldNotRefresh = function () {
        var scroller = this.scroll.scroller;
        var scrollBehaviorX = scroller.scrollBehaviorX, scrollBehaviorY = scroller.scrollBehaviorY;
        var outsideBoundaries = scrollBehaviorX.currentPos > scrollBehaviorX.minScrollPos ||
            scrollBehaviorX.currentPos < scrollBehaviorX.maxScrollPos ||
            scrollBehaviorY.currentPos > scrollBehaviorY.minScrollPos ||
            scrollBehaviorY.currentPos < scrollBehaviorY.maxScrollPos;
        return scroller.animater.pending || outsideBoundaries;
    };
    ObserveDOM.prototype.checkDOMUpdate = function () {
        var _this = this;
        var content = this.scroll.scroller.content;
        var contentRect = getRect(content);
        var oldWidth = contentRect.width;
        var oldHeight = contentRect.height;
        var check = function () {
            if (_this.stopObserver) {
                return;
            }
            contentRect = getRect(content);
            var newWidth = contentRect.width;
            var newHeight = contentRect.height;
            if (oldWidth !== newWidth || oldHeight !== newHeight) {
                _this.scroll.refresh();
            }
            oldWidth = newWidth;
            oldHeight = newHeight;
            next();
        };
        var next = function () {
            setTimeout(function () {
                check();
            }, 1000);
        };
        next();
    };
    ObserveDOM.prototype.registerHooks = function (hooks, name, handler) {
        hooks.on(name, handler, this);
        this.hooksFn.push([hooks, name, handler]);
    };
    ObserveDOM.prototype.stopObserve = function () {
        this.stopObserver = true;
        if (this.observer) {
            this.observer.disconnect();
        }
    };
    ObserveDOM.prototype.destroy = function () {
        this.stopObserve();
        this.hooksFn.forEach(function (item) {
            var hooks = item[0];
            var hooksName = item[1];
            var handlerFn = item[2];
            hooks.off(hooksName, handlerFn);
        });
        this.hooksFn.length = 0;
    };
    ObserveDOM.pluginName = 'observeDOM';
    return ObserveDOM;
}());

var sourcePrefix$6 = 'plugins.pullDownRefresh';
var propertiesMap$6 = [
    {
        key: 'finishPullDown',
        name: 'finishPullDown'
    },
    {
        key: 'openPullDown',
        name: 'openPullDown'
    },
    {
        key: 'closePullDown',
        name: 'closePullDown'
    },
    {
        key: 'autoPullDownRefresh',
        name: 'autoPullDownRefresh'
    }
];
var propertiesConfig$6 = propertiesMap$6.map(function (item) {
    return {
        key: item.key,
        sourceKey: sourcePrefix$6 + "." + item.name
    };
});

var PULLING_DOWN_EVENT = 'pullingDown';
var ENTER_THRESHOLD_EVENT = 'enterThreshold';
var LEAVE_THRESHOLD_EVENT = 'leaveThreshold';
var PullDown = /** @class */ (function () {
    function PullDown(scroll) {
        this.scroll = scroll;
        this.pulling = 0 /* DEFAULT */;
        this.thresholdBoundary = 0 /* DEFAULT */;
        this.init();
    }
    PullDown.prototype.setPulling = function (status) {
        this.pulling = status;
    };
    PullDown.prototype.setThresholdBoundary = function (boundary) {
        this.thresholdBoundary = boundary;
    };
    PullDown.prototype.init = function () {
        this.handleBScroll();
        this.handleOptions(this.scroll.options.pullDownRefresh);
        this.handleHooks();
        this.watch();
    };
    PullDown.prototype.handleBScroll = function () {
        this.scroll.registerType([
            PULLING_DOWN_EVENT,
            ENTER_THRESHOLD_EVENT,
            LEAVE_THRESHOLD_EVENT,
        ]);
        this.scroll.proxy(propertiesConfig$6);
    };
    PullDown.prototype.handleOptions = function (userOptions) {
        if (userOptions === void 0) { userOptions = {}; }
        userOptions = (userOptions === true ? {} : userOptions);
        var defaultOptions = {
            threshold: 90,
            stop: 40,
        };
        this.options = extend(defaultOptions, userOptions);
        this.scroll.options.probeType = 3 /* Realtime */;
    };
    PullDown.prototype.handleHooks = function () {
        var _this = this;
        this.hooksFn = [];
        var scroller = this.scroll.scroller;
        var scrollBehaviorY = scroller.scrollBehaviorY;
        this.currentMinScrollY = this.cachedOriginanMinScrollY =
            scrollBehaviorY.minScrollPos;
        this.registerHooks(this.scroll.hooks, this.scroll.hooks.eventTypes.contentChanged, function () {
            _this.finishPullDown();
        });
        this.registerHooks(scrollBehaviorY.hooks, scrollBehaviorY.hooks.eventTypes.computeBoundary, function (boundary) {
            // content is smaller than wrapper
            if (boundary.maxScrollPos > 0) {
                // allow scrolling when content is not full of wrapper
                boundary.maxScrollPos = -1;
            }
            boundary.minScrollPos = _this.currentMinScrollY;
        });
        // integrate with mousewheel
        if (this.hasMouseWheelPlugin()) {
            this.registerHooks(this.scroll, this.scroll.eventTypes.alterOptions, function (mouseWheelOptions) {
                var SANE_DISCRETE_TIME = 300;
                var SANE_EASE_TIME = 350;
                mouseWheelOptions.discreteTime = SANE_DISCRETE_TIME;
                // easeTime > discreteTime ensure goInto checkPullDown function
                mouseWheelOptions.easeTime = SANE_EASE_TIME;
            });
            this.registerHooks(this.scroll, this.scroll.eventTypes.mousewheelEnd, function () {
                // mouseWheel need trigger checkPullDown manually
                scroller.hooks.trigger(scroller.hooks.eventTypes.end);
            });
        }
    };
    PullDown.prototype.registerHooks = function (hooks, name, handler) {
        hooks.on(name, handler, this);
        this.hooksFn.push([hooks, name, handler]);
    };
    PullDown.prototype.hasMouseWheelPlugin = function () {
        return !!this.scroll.eventTypes.alterOptions;
    };
    PullDown.prototype.watch = function () {
        var scroller = this.scroll.scroller;
        this.watching = true;
        this.registerHooks(scroller.hooks, scroller.hooks.eventTypes.end, this.checkPullDown);
        this.registerHooks(this.scroll, this.scroll.eventTypes.scrollStart, this.resetStateBeforeScrollStart);
        this.registerHooks(this.scroll, this.scroll.eventTypes.scroll, this.checkLocationOfThresholdBoundary);
        if (this.hasMouseWheelPlugin()) {
            this.registerHooks(this.scroll, this.scroll.eventTypes.mousewheelStart, this.resetStateBeforeScrollStart);
        }
    };
    PullDown.prototype.resetStateBeforeScrollStart = function () {
        // current fetching pulldownRefresh has ended
        if (!this.isFetchingStatus()) {
            this.setPulling(1 /* MOVING */);
            this.setThresholdBoundary(0 /* DEFAULT */);
        }
    };
    PullDown.prototype.checkLocationOfThresholdBoundary = function () {
        // pulldownRefresh is in the phase of Moving
        if (this.pulling === 1 /* MOVING */) {
            var scroll_1 = this.scroll;
            // enter threshold boundary
            var enteredThresholdBoundary = this.thresholdBoundary !== 1 /* INSIDE */ &&
                this.locateInsideThresholdBoundary();
            // leave threshold boundary
            var leftThresholdBoundary = this.thresholdBoundary !== 2 /* OUTSIDE */ &&
                !this.locateInsideThresholdBoundary();
            if (enteredThresholdBoundary) {
                this.setThresholdBoundary(1 /* INSIDE */);
                scroll_1.trigger(ENTER_THRESHOLD_EVENT);
            }
            if (leftThresholdBoundary) {
                this.setThresholdBoundary(2 /* OUTSIDE */);
                scroll_1.trigger(LEAVE_THRESHOLD_EVENT);
            }
        }
    };
    PullDown.prototype.locateInsideThresholdBoundary = function () {
        return this.scroll.y <= this.options.threshold;
    };
    PullDown.prototype.unwatch = function () {
        var scroll = this.scroll;
        var scroller = scroll.scroller;
        this.watching = false;
        scroller.hooks.off(scroller.hooks.eventTypes.end, this.checkPullDown);
        scroll.off(scroll.eventTypes.scrollStart, this.resetStateBeforeScrollStart);
        scroll.off(scroll.eventTypes.scroll, this.checkLocationOfThresholdBoundary);
        if (this.hasMouseWheelPlugin()) {
            scroll.off(scroll.eventTypes.mousewheelStart, this.resetStateBeforeScrollStart);
        }
    };
    PullDown.prototype.checkPullDown = function () {
        var _a = this.options, threshold = _a.threshold, stop = _a.stop;
        // check if a real pull down action
        if (this.scroll.y < threshold) {
            return false;
        }
        if (this.pulling === 1 /* MOVING */) {
            this.modifyBehaviorYBoundary(stop);
            this.setPulling(2 /* FETCHING */);
            this.scroll.trigger(PULLING_DOWN_EVENT);
        }
        this.scroll.scrollTo(this.scroll.x, stop, this.scroll.options.bounceTime, ease.bounce);
        return this.isFetchingStatus();
    };
    PullDown.prototype.isFetchingStatus = function () {
        return this.pulling === 2 /* FETCHING */;
    };
    PullDown.prototype.modifyBehaviorYBoundary = function (stopDistance) {
        var scrollBehaviorY = this.scroll.scroller.scrollBehaviorY;
        // manually modify minScrollPos for a hang animation
        // to prevent from resetPosition
        this.cachedOriginanMinScrollY = scrollBehaviorY.minScrollPos;
        this.currentMinScrollY = stopDistance;
        scrollBehaviorY.computeBoundary();
    };
    PullDown.prototype.finishPullDown = function () {
        if (this.isFetchingStatus()) {
            var scrollBehaviorY = this.scroll.scroller.scrollBehaviorY;
            // restore minScrollY since the hang animation has ended
            this.currentMinScrollY = this.cachedOriginanMinScrollY;
            scrollBehaviorY.computeBoundary();
            this.setPulling(0 /* DEFAULT */);
            this.scroll.resetPosition(this.scroll.options.bounceTime, ease.bounce);
        }
    };
    // allow 'true' type is compat for beta version implements
    PullDown.prototype.openPullDown = function (config) {
        if (config === void 0) { config = {}; }
        this.handleOptions(config);
        if (!this.watching) {
            this.watch();
        }
    };
    PullDown.prototype.closePullDown = function () {
        this.unwatch();
    };
    PullDown.prototype.autoPullDownRefresh = function () {
        var _a = this.options, threshold = _a.threshold, stop = _a.stop;
        if (this.isFetchingStatus() || !this.watching) {
            return;
        }
        this.modifyBehaviorYBoundary(stop);
        this.scroll.trigger(this.scroll.eventTypes.scrollStart);
        this.scroll.scrollTo(this.scroll.x, threshold);
        this.setPulling(2 /* FETCHING */);
        this.scroll.trigger(PULLING_DOWN_EVENT);
        this.scroll.scrollTo(this.scroll.x, stop, this.scroll.options.bounceTime, ease.bounce);
    };
    PullDown.pluginName = 'pullDownRefresh';
    return PullDown;
}());

var sourcePrefix$5 = 'plugins.pullUpLoad';
var propertiesMap$5 = [
    {
        key: 'finishPullUp',
        name: 'finishPullUp'
    },
    {
        key: 'openPullUp',
        name: 'openPullUp'
    },
    {
        key: 'closePullUp',
        name: 'closePullUp'
    },
    {
        key: 'autoPullUpLoad',
        name: 'autoPullUpLoad'
    }
];
var propertiesConfig$5 = propertiesMap$5.map(function (item) {
    return {
        key: item.key,
        sourceKey: sourcePrefix$5 + "." + item.name
    };
});

var PULL_UP_HOOKS_NAME = 'pullingUp';
var PullUp = /** @class */ (function () {
    function PullUp(scroll) {
        this.scroll = scroll;
        this.pulling = false;
        this.watching = false;
        this.init();
    }
    PullUp.prototype.init = function () {
        this.handleBScroll();
        this.handleOptions(this.scroll.options.pullUpLoad);
        this.handleHooks();
        this.watch();
    };
    PullUp.prototype.handleBScroll = function () {
        this.scroll.registerType([PULL_UP_HOOKS_NAME]);
        this.scroll.proxy(propertiesConfig$5);
    };
    PullUp.prototype.handleOptions = function (userOptions) {
        if (userOptions === void 0) { userOptions = {}; }
        userOptions = (userOptions === true ? {} : userOptions);
        var defaultOptions = {
            threshold: 0,
        };
        this.options = extend(defaultOptions, userOptions);
        this.scroll.options.probeType = 3 /* Realtime */;
    };
    PullUp.prototype.handleHooks = function () {
        var _this = this;
        this.hooksFn = [];
        var scrollBehaviorY = this.scroll.scroller.scrollBehaviorY;
        this.registerHooks(this.scroll.hooks, this.scroll.hooks.eventTypes.contentChanged, function () {
            _this.finishPullUp();
        });
        this.registerHooks(scrollBehaviorY.hooks, scrollBehaviorY.hooks.eventTypes.computeBoundary, function (boundary) {
            // content is smaller than wrapper
            if (boundary.maxScrollPos > 0) {
                // allow scrolling when content is not full of wrapper
                boundary.maxScrollPos = -1;
            }
        });
    };
    PullUp.prototype.registerHooks = function (hooks, name, handler) {
        hooks.on(name, handler, this);
        this.hooksFn.push([hooks, name, handler]);
    };
    PullUp.prototype.watch = function () {
        if (this.watching) {
            return;
        }
        this.watching = true;
        this.registerHooks(this.scroll, this.scroll.eventTypes.scroll, this.checkPullUp);
    };
    PullUp.prototype.unwatch = function () {
        this.watching = false;
        this.scroll.off(this.scroll.eventTypes.scroll, this.checkPullUp);
    };
    PullUp.prototype.checkPullUp = function (pos) {
        var _this = this;
        var threshold = this.options.threshold;
        if (this.scroll.movingDirectionY === 1 /* Positive */ &&
            pos.y <= this.scroll.maxScrollY + threshold) {
            this.pulling = true;
            // must reset pulling after scrollEnd
            this.scroll.once(this.scroll.eventTypes.scrollEnd, function () {
                _this.pulling = false;
            });
            this.unwatch();
            this.scroll.trigger(PULL_UP_HOOKS_NAME);
        }
    };
    PullUp.prototype.finishPullUp = function () {
        var _this = this;
        // reset Direction, fix #936
        this.scroll.scroller.scrollBehaviorY.setMovingDirection(0 /* Default */);
        if (this.pulling) {
            this.scroll.once(this.scroll.eventTypes.scrollEnd, function () {
                _this.watch();
            });
        }
        else {
            this.watch();
        }
    };
    // allow 'true' type is compat for beta version implements
    PullUp.prototype.openPullUp = function (config) {
        if (config === void 0) { config = {}; }
        this.handleOptions(config);
        this.watch();
    };
    PullUp.prototype.closePullUp = function () {
        this.unwatch();
    };
    PullUp.prototype.autoPullUpLoad = function () {
        var threshold = this.options.threshold;
        var scrollBehaviorY = this.scroll.scroller.scrollBehaviorY;
        if (this.pulling || !this.watching) {
            return;
        }
        // simulate a pullUp action
        var NEGATIVE_VALUE = -1;
        var outOfBoundaryPos = scrollBehaviorY.maxScrollPos + threshold + NEGATIVE_VALUE;
        this.scroll.scroller.scrollBehaviorY.setMovingDirection(NEGATIVE_VALUE);
        this.scroll.scrollTo(this.scroll.x, outOfBoundaryPos, this.scroll.options.bounceTime);
    };
    PullUp.pluginName = 'pullUpLoad';
    return PullUp;
}());

var EventHandler = /** @class */ (function () {
    function EventHandler(indicator, options) {
        this.indicator = indicator;
        this.options = options;
        this.hooks = new EventEmitter(['touchStart', 'touchMove', 'touchEnd']);
        this.registerEvents();
    }
    EventHandler.prototype.registerEvents = function () {
        var _a = this.options, disableMouse = _a.disableMouse, disableTouch = _a.disableTouch;
        var startEvents = [];
        var moveEvents = [];
        var endEvents = [];
        if (!disableMouse) {
            startEvents.push({
                name: 'mousedown',
                handler: this.start.bind(this),
            });
            moveEvents.push({
                name: 'mousemove',
                handler: this.move.bind(this),
            });
            endEvents.push({
                name: 'mouseup',
                handler: this.end.bind(this),
            });
        }
        if (!disableTouch) {
            startEvents.push({
                name: 'touchstart',
                handler: this.start.bind(this),
            });
            moveEvents.push({
                name: 'touchmove',
                handler: this.move.bind(this),
            });
            endEvents.push({
                name: 'touchend',
                handler: this.end.bind(this),
            }, {
                name: 'touchcancel',
                handler: this.end.bind(this),
            });
        }
        this.startEventRegister = new EventRegister(this.indicator.indicatorEl, startEvents);
        this.moveEventRegister = new EventRegister(window, moveEvents);
        this.endEventRegister = new EventRegister(window, endEvents);
    };
    EventHandler.prototype.BScrollIsDisabled = function () {
        return !this.indicator.scroll.enabled;
    };
    EventHandler.prototype.start = function (e) {
        if (this.BScrollIsDisabled()) {
            return;
        }
        var point = (e.touches ? e.touches[0] : e);
        e.preventDefault();
        e.stopPropagation();
        this.initiated = true;
        this.lastPoint = point[this.indicator.keysMap.point];
        this.hooks.trigger(this.hooks.eventTypes.touchStart);
    };
    EventHandler.prototype.move = function (e) {
        if (!this.initiated) {
            return;
        }
        var point = (e.touches ? e.touches[0] : e);
        var pointPos = point[this.indicator.keysMap.point];
        e.preventDefault();
        e.stopPropagation();
        var delta = pointPos - this.lastPoint;
        this.lastPoint = pointPos;
        this.hooks.trigger(this.hooks.eventTypes.touchMove, delta);
    };
    EventHandler.prototype.end = function (e) {
        if (!this.initiated) {
            return;
        }
        this.initiated = false;
        e.preventDefault();
        e.stopPropagation();
        this.hooks.trigger(this.hooks.eventTypes.touchEnd);
    };
    EventHandler.prototype.destroy = function () {
        this.startEventRegister.destroy();
        this.moveEventRegister.destroy();
        this.endEventRegister.destroy();
    };
    return EventHandler;
}());

var Indicator$1 = /** @class */ (function () {
    function Indicator(scroll, options) {
        this.scroll = scroll;
        this.options = options;
        this.hooksFn = [];
        this.wrapper = options.wrapper;
        this.direction = options.direction;
        this.indicatorEl = this.wrapper.children[0];
        this.keysMap = this.getKeysMap();
        this.handleFade();
        this.handleHooks();
    }
    Indicator.prototype.handleFade = function () {
        if (this.options.fade) {
            this.wrapper.style.opacity = '0';
        }
    };
    Indicator.prototype.handleHooks = function () {
        var _this = this;
        var _a = this.options, fade = _a.fade, interactive = _a.interactive, scrollbarTrackClickable = _a.scrollbarTrackClickable;
        var scroll = this.scroll;
        var scrollHooks = scroll.hooks;
        var translaterHooks = scroll.scroller.translater.hooks;
        var animaterHooks = scroll.scroller.animater.hooks;
        this.registerHooks(scrollHooks, scrollHooks.eventTypes.refresh, this.refresh);
        this.registerHooks(translaterHooks, translaterHooks.eventTypes.translate, function (pos) {
            var hasScrollKey = _this.keysMap.hasScroll;
            if (_this.scroll[hasScrollKey]) {
                _this.updatePosition(pos);
            }
        });
        this.registerHooks(animaterHooks, animaterHooks.eventTypes.time, this.transitionTime);
        this.registerHooks(animaterHooks, animaterHooks.eventTypes.timeFunction, this.transitionTimingFunction);
        if (fade) {
            this.registerHooks(scroll, scroll.eventTypes.scrollEnd, function () {
                _this.fade();
            });
            this.registerHooks(scroll, scroll.eventTypes.scrollStart, function () {
                _this.fade(true);
            });
            // for mousewheel event
            if (scroll.eventTypes.mousewheelStart &&
                scroll.eventTypes.mousewheelEnd) {
                this.registerHooks(scroll, scroll.eventTypes.mousewheelStart, function () {
                    _this.fade(true);
                });
                this.registerHooks(scroll, scroll.eventTypes.mousewheelMove, function () {
                    _this.fade(true);
                });
                this.registerHooks(scroll, scroll.eventTypes.mousewheelEnd, function () {
                    _this.fade();
                });
            }
        }
        if (interactive) {
            var _b = this.scroll.options, disableMouse = _b.disableMouse, disableTouch = _b.disableTouch;
            this.eventHandler = new EventHandler(this, {
                disableMouse: disableMouse,
                disableTouch: disableTouch,
            });
            var eventHandlerHooks = this.eventHandler.hooks;
            this.registerHooks(eventHandlerHooks, eventHandlerHooks.eventTypes.touchStart, this.startHandler);
            this.registerHooks(eventHandlerHooks, eventHandlerHooks.eventTypes.touchMove, this.moveHandler);
            this.registerHooks(eventHandlerHooks, eventHandlerHooks.eventTypes.touchEnd, this.endHandler);
        }
        if (scrollbarTrackClickable) {
            this.bindClick();
        }
    };
    Indicator.prototype.registerHooks = function (hooks, name, handler) {
        hooks.on(name, handler, this);
        this.hooksFn.push([hooks, name, handler]);
    };
    Indicator.prototype.bindClick = function () {
        var wrapper = this.wrapper;
        this.clickEventRegister = new EventRegister(wrapper, [
            {
                name: 'click',
                handler: this.handleClick.bind(this),
            },
        ]);
    };
    Indicator.prototype.handleClick = function (e) {
        var newPos = this.calculateclickOffsetPos(e);
        var _a = this.scroll, x = _a.x, y = _a.y;
        x = this.direction === "horizontal" /* Horizontal */ ? newPos : x;
        y = this.direction === "vertical" /* Vertical */ ? newPos : y;
        this.scroll.scrollTo(x, y, this.options.scrollbarTrackOffsetTime);
    };
    Indicator.prototype.calculateclickOffsetPos = function (e) {
        var _a = this.keysMap, poinKey = _a.point, domRectKey = _a.domRect;
        var scrollbarTrackOffsetType = this.options.scrollbarTrackOffsetType;
        var clickPointOffset = e[poinKey] - this.wrapperRect[domRectKey];
        var scrollToWhere = clickPointOffset < this.currentPos ? -1 /* Up */ : 1 /* Down */;
        var delta = 0;
        var currentPos = this.currentPos;
        if (scrollbarTrackOffsetType === "step" /* Step */) {
            delta = this.scrollInfo.baseSize * scrollToWhere;
        }
        else {
            delta = 0;
            currentPos = clickPointOffset;
        }
        return this.newPos(currentPos, delta, this.scrollInfo);
    };
    Indicator.prototype.getKeysMap = function () {
        if (this.direction === "vertical" /* Vertical */) {
            return {
                hasScroll: 'hasVerticalScroll',
                size: 'height',
                wrapperSize: 'clientHeight',
                scrollerSize: 'scrollerHeight',
                maxScrollPos: 'maxScrollY',
                pos: 'y',
                point: 'pageY',
                translateProperty: 'translateY',
                domRect: 'top',
            };
        }
        return {
            hasScroll: 'hasHorizontalScroll',
            size: 'width',
            wrapperSize: 'clientWidth',
            scrollerSize: 'scrollerWidth',
            maxScrollPos: 'maxScrollX',
            pos: 'x',
            point: 'pageX',
            translateProperty: 'translateX',
            domRect: 'left',
        };
    };
    Indicator.prototype.fade = function (visible) {
        var _a = this.options, fadeInTime = _a.fadeInTime, fadeOutTime = _a.fadeOutTime;
        var time = visible ? fadeInTime : fadeOutTime;
        var wrapper = this.wrapper;
        wrapper.style[style.transitionDuration] = time + 'ms';
        wrapper.style.opacity = visible ? '1' : '0';
    };
    Indicator.prototype.refresh = function () {
        var hasScrollKey = this.keysMap.hasScroll;
        var scroll = this.scroll;
        var x = scroll.x, y = scroll.y;
        this.wrapperRect = this.wrapper.getBoundingClientRect();
        if (this.canScroll(scroll[hasScrollKey])) {
            var _a = this.keysMap, wrapperSizeKey = _a.wrapperSize, scrollerSizeKey = _a.scrollerSize, maxScrollPosKey = _a.maxScrollPos;
            this.scrollInfo = this.refreshScrollInfo(this.wrapper[wrapperSizeKey], scroll[scrollerSizeKey], scroll[maxScrollPosKey], this.indicatorEl[wrapperSizeKey]);
            this.updatePosition({
                x: x,
                y: y,
            });
        }
    };
    Indicator.prototype.transitionTime = function (time) {
        if (time === void 0) { time = 0; }
        this.indicatorEl.style[style.transitionDuration] = time + 'ms';
    };
    Indicator.prototype.transitionTimingFunction = function (easing) {
        this.indicatorEl.style[style.transitionTimingFunction] = easing;
    };
    Indicator.prototype.canScroll = function (hasScroll) {
        this.wrapper.style.display = hasScroll ? 'block' : 'none';
        return hasScroll;
    };
    Indicator.prototype.refreshScrollInfo = function (wrapperSize, scrollerSize, maxScrollPos, indicatorElSize) {
        var baseSize = Math.max(Math.round((wrapperSize * wrapperSize) / (scrollerSize || wrapperSize || 1)), this.options.minSize);
        if (this.options.isCustom) {
            baseSize = indicatorElSize;
        }
        var maxIndicatorScrollPos = wrapperSize - baseSize;
        // sizeRatio is negative
        var sizeRatio = maxIndicatorScrollPos / maxScrollPos;
        return {
            baseSize: baseSize,
            maxScrollPos: maxIndicatorScrollPos,
            minScrollPos: 0,
            sizeRatio: sizeRatio,
        };
    };
    Indicator.prototype.updatePosition = function (point) {
        var _a = this.caculatePosAndSize(point, this.scrollInfo), pos = _a.pos, size = _a.size;
        this.refreshStyle(size, pos);
        this.currentPos = pos;
    };
    Indicator.prototype.caculatePosAndSize = function (point, scrollInfo) {
        var posKey = this.keysMap.pos;
        var sizeRatio = scrollInfo.sizeRatio, baseSize = scrollInfo.baseSize, maxScrollPos = scrollInfo.maxScrollPos, minScrollPos = scrollInfo.minScrollPos;
        var minSize = this.options.minSize;
        var pos = Math.round(sizeRatio * point[posKey]);
        var size;
        // when out of boundary, slow down size reduction
        if (pos < minScrollPos) {
            size = Math.max(baseSize + pos * 3, minSize);
            pos = minScrollPos;
        }
        else if (pos > maxScrollPos) {
            size = Math.max(baseSize - (pos - maxScrollPos) * 3, minSize);
            pos = maxScrollPos + baseSize - size;
        }
        else {
            size = baseSize;
        }
        return {
            pos: pos,
            size: size,
        };
    };
    Indicator.prototype.refreshStyle = function (size, pos) {
        var _a = this.keysMap, translatePropertyKey = _a.translateProperty, sizeKey = _a.size;
        var translateZ = this.scroll.options.translateZ;
        this.indicatorEl.style[sizeKey] = size + "px";
        this.indicatorEl.style[style.transform] = translatePropertyKey + "(" + pos + "px)" + translateZ;
    };
    Indicator.prototype.startHandler = function () {
        this.moved = false;
        this.startTime = getNow();
        this.transitionTime();
        this.scroll.scroller.hooks.trigger(this.scroll.scroller.hooks.eventTypes.beforeScrollStart);
    };
    Indicator.prototype.moveHandler = function (delta) {
        if (!this.moved && !this.indicatorNotMoved(delta)) {
            this.moved = true;
            this.scroll.scroller.hooks.trigger(this.scroll.scroller.hooks.eventTypes.scrollStart);
        }
        if (this.moved) {
            var newPos = this.newPos(this.currentPos, delta, this.scrollInfo);
            this.syncBScroll(newPos);
        }
    };
    Indicator.prototype.endHandler = function () {
        if (this.moved) {
            var _a = this.scroll, x = _a.x, y = _a.y;
            this.scroll.scroller.hooks.trigger(this.scroll.scroller.hooks.eventTypes.scrollEnd, {
                x: x,
                y: y,
            });
        }
    };
    Indicator.prototype.indicatorNotMoved = function (delta) {
        var currentPos = this.currentPos;
        var _a = this.scrollInfo, maxScrollPos = _a.maxScrollPos, minScrollPos = _a.minScrollPos;
        var notMoved = (currentPos === minScrollPos && delta <= 0) ||
            (currentPos === maxScrollPos && delta >= 0);
        return notMoved;
    };
    Indicator.prototype.syncBScroll = function (newPos) {
        var timestamp = getNow();
        var _a = this.scroll, x = _a.x, y = _a.y, options = _a.options, scroller = _a.scroller, maxScrollY = _a.maxScrollY, minScrollY = _a.minScrollY, maxScrollX = _a.maxScrollX, minScrollX = _a.minScrollX;
        var probeType = options.probeType, momentumLimitTime = options.momentumLimitTime;
        var position = { x: x, y: y };
        if (this.direction === "vertical" /* Vertical */) {
            position.y = between(newPos, maxScrollY, minScrollY);
        }
        else {
            position.x = between(newPos, maxScrollX, minScrollX);
        }
        scroller.translater.translate(position);
        // dispatch scroll in interval time
        if (timestamp - this.startTime > momentumLimitTime) {
            this.startTime = timestamp;
            if (probeType === 1 /* Throttle */) {
                scroller.hooks.trigger(scroller.hooks.eventTypes.scroll, position);
            }
        }
        // dispatch scroll all the time
        if (probeType > 1 /* Throttle */) {
            scroller.hooks.trigger(scroller.hooks.eventTypes.scroll, position);
        }
    };
    Indicator.prototype.newPos = function (currentPos, delta, scrollInfo) {
        var maxScrollPos = scrollInfo.maxScrollPos, sizeRatio = scrollInfo.sizeRatio, minScrollPos = scrollInfo.minScrollPos;
        var newPos = currentPos + delta;
        newPos = between(newPos, minScrollPos, maxScrollPos);
        return Math.round(newPos / sizeRatio);
    };
    Indicator.prototype.destroy = function () {
        var _a = this.options, interactive = _a.interactive, scrollbarTrackClickable = _a.scrollbarTrackClickable, isCustom = _a.isCustom;
        if (interactive) {
            this.eventHandler.destroy();
        }
        if (scrollbarTrackClickable) {
            this.clickEventRegister.destroy();
        }
        if (!isCustom) {
            this.wrapper.parentNode.removeChild(this.wrapper);
        }
        this.hooksFn.forEach(function (item) {
            var hooks = item[0];
            var hooksName = item[1];
            var handlerFn = item[2];
            hooks.off(hooksName, handlerFn);
        });
        this.hooksFn.length = 0;
    };
    return Indicator;
}());

var ScrollBar = /** @class */ (function () {
    function ScrollBar(scroll) {
        this.scroll = scroll;
        this.handleOptions();
        this.createIndicators();
        this.handleHooks();
    }
    ScrollBar.prototype.handleHooks = function () {
        var _this = this;
        var scroll = this.scroll;
        scroll.hooks.on(scroll.hooks.eventTypes.destroy, function () {
            for (var _i = 0, _a = _this.indicators; _i < _a.length; _i++) {
                var indicator = _a[_i];
                indicator.destroy();
            }
        });
    };
    ScrollBar.prototype.handleOptions = function () {
        var userOptions = (this.scroll.options.scrollbar === true
            ? {}
            : this.scroll.options.scrollbar);
        var defaultOptions = {
            fade: true,
            fadeInTime: 250,
            fadeOutTime: 500,
            interactive: false,
            customElements: [],
            minSize: 8,
            scrollbarTrackClickable: false,
            scrollbarTrackOffsetType: "step" /* Step */,
            scrollbarTrackOffsetTime: 300,
        };
        this.options = extend(defaultOptions, userOptions);
    };
    ScrollBar.prototype.createIndicators = function () {
        var indicatorOptions;
        var scroll = this.scroll;
        var indicators = [];
        var scrollDirectionConfigKeys = ['scrollX', 'scrollY'];
        var indicatorDirections = [
            "horizontal" /* Horizontal */,
            "vertical" /* Vertical */,
        ];
        var customScrollbarEls = this.options.customElements;
        for (var i = 0; i < scrollDirectionConfigKeys.length; i++) {
            var key = scrollDirectionConfigKeys[i];
            // wanna scroll in specified direction
            if (scroll.options[key]) {
                var customElement = customScrollbarEls.shift();
                var direction = indicatorDirections[i];
                var isCustom = false;
                var scrollbarWrapper = customElement
                    ? customElement
                    : this.createScrollbarElement(direction);
                // internal scrollbar
                if (scrollbarWrapper !== customElement) {
                    scroll.wrapper.appendChild(scrollbarWrapper);
                }
                else {
                    // custom scrollbar passed by users
                    isCustom = true;
                }
                indicatorOptions = __assign(__assign({ wrapper: scrollbarWrapper, direction: direction }, this.options), { isCustom: isCustom });
                indicators.push(new Indicator$1(scroll, indicatorOptions));
            }
        }
        this.indicators = indicators;
    };
    ScrollBar.prototype.createScrollbarElement = function (direction, scrollbarTrackClickable) {
        if (scrollbarTrackClickable === void 0) { scrollbarTrackClickable = this.options.scrollbarTrackClickable; }
        var scrollbarWrapperEl = document.createElement('div');
        var scrollbarIndicatorEl = document.createElement('div');
        scrollbarWrapperEl.style.cssText =
            'position:absolute;z-index:9999;overflow:hidden;';
        scrollbarIndicatorEl.style.cssText =
            'box-sizing:border-box;position:absolute;background:rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.9);border-radius:3px;';
        scrollbarIndicatorEl.className = 'bscroll-indicator';
        if (direction === "horizontal" /* Horizontal */) {
            scrollbarWrapperEl.style.cssText +=
                'height:7px;left:2px;right:2px;bottom:0;';
            scrollbarIndicatorEl.style.height = '100%';
            scrollbarWrapperEl.className = 'bscroll-horizontal-scrollbar';
        }
        else {
            scrollbarWrapperEl.style.cssText +=
                'width:7px;bottom:2px;top:2px;right:1px;';
            scrollbarIndicatorEl.style.width = '100%';
            scrollbarWrapperEl.className = 'bscroll-vertical-scrollbar';
        }
        if (!scrollbarTrackClickable) {
            scrollbarWrapperEl.style.cssText += 'pointer-events:none;';
        }
        scrollbarWrapperEl.appendChild(scrollbarIndicatorEl);
        return scrollbarWrapperEl;
    };
    ScrollBar.pluginName = 'scrollbar';
    return ScrollBar;
}());

var PagesMatrix = /** @class */ (function () {
    function PagesMatrix(scroll) {
        this.scroll = scroll;
        this.init();
    }
    PagesMatrix.prototype.init = function () {
        var scroller = this.scroll.scroller;
        var scrollBehaviorX = scroller.scrollBehaviorX, scrollBehaviorY = scroller.scrollBehaviorY;
        this.wrapperWidth = scrollBehaviorX.wrapperSize;
        this.wrapperHeight = scrollBehaviorY.wrapperSize;
        this.scrollerHeight = scrollBehaviorY.contentSize;
        this.scrollerWidth = scrollBehaviorX.contentSize;
        this.pages = this.buildPagesMatrix(this.wrapperWidth, this.wrapperHeight);
        this.pageLengthOfX = this.pages ? this.pages.length : 0;
        this.pageLengthOfY = this.pages && this.pages[0] ? this.pages[0].length : 0;
    };
    PagesMatrix.prototype.getPageStats = function (pageX, pageY) {
        return this.pages[pageX][pageY];
    };
    PagesMatrix.prototype.getNearestPageIndex = function (x, y) {
        var pageX = 0;
        var pageY = 0;
        var l = this.pages.length;
        for (; pageX < l - 1; pageX++) {
            if (x >= this.pages[pageX][0].cx) {
                break;
            }
        }
        l = this.pages[pageX].length;
        for (; pageY < l - 1; pageY++) {
            if (y >= this.pages[0][pageY].cy) {
                break;
            }
        }
        return {
            pageX: pageX,
            pageY: pageY,
        };
    };
    // (n x 1) matrix for horizontal scroll or
    // (1 * n) matrix for vertical scroll
    PagesMatrix.prototype.buildPagesMatrix = function (stepX, stepY) {
        var pages = [];
        var x = 0;
        var y;
        var cx;
        var cy;
        var i = 0;
        var l;
        var maxScrollPosX = this.scroll.scroller.scrollBehaviorX.maxScrollPos;
        var maxScrollPosY = this.scroll.scroller.scrollBehaviorY.maxScrollPos;
        cx = Math.round(stepX / 2);
        cy = Math.round(stepY / 2);
        while (x > -this.scrollerWidth) {
            pages[i] = [];
            l = 0;
            y = 0;
            while (y > -this.scrollerHeight) {
                pages[i][l] = {
                    x: Math.max(x, maxScrollPosX),
                    y: Math.max(y, maxScrollPosY),
                    width: stepX,
                    height: stepY,
                    cx: x - cx,
                    cy: y - cy,
                };
                y -= stepY;
                l++;
            }
            x -= stepX;
            i++;
        }
        return pages;
    };
    return PagesMatrix;
}());

var BASE_PAGE = {
    pageX: 0,
    pageY: 0,
    x: 0,
    y: 0,
};

var SlidePages = /** @class */ (function () {
    function SlidePages(scroll, slideOptions) {
        this.scroll = scroll;
        this.slideOptions = slideOptions;
        this.slideX = false;
        this.slideY = false;
        this.currentPage = extend({}, BASE_PAGE);
    }
    SlidePages.prototype.refresh = function () {
        this.pagesMatrix = new PagesMatrix(this.scroll);
        this.checkSlideLoop();
        this.currentPage = this.getAdjustedCurrentPage();
    };
    SlidePages.prototype.getAdjustedCurrentPage = function () {
        var _a = this.currentPage, pageX = _a.pageX, pageY = _a.pageY;
        // page index should be handled
        // because page counts may reduce
        pageX = Math.min(pageX, this.pagesMatrix.pageLengthOfX - 1);
        pageY = Math.min(pageY, this.pagesMatrix.pageLengthOfY - 1);
        // loop scene should also be respected
        // because clonedNode will cause pageLength increasing
        if (this.loopX) {
            pageX = Math.min(pageX, this.pagesMatrix.pageLengthOfX - 2);
        }
        if (this.loopY) {
            pageY = Math.min(pageY, this.pagesMatrix.pageLengthOfY - 2);
        }
        var _b = this.pagesMatrix.getPageStats(pageX, pageY), x = _b.x, y = _b.y;
        return { pageX: pageX, pageY: pageY, x: x, y: y };
    };
    SlidePages.prototype.setCurrentPage = function (newPage) {
        this.currentPage = newPage;
    };
    SlidePages.prototype.getInternalPage = function (pageX, pageY) {
        if (pageX >= this.pagesMatrix.pageLengthOfX) {
            pageX = this.pagesMatrix.pageLengthOfX - 1;
        }
        else if (pageX < 0) {
            pageX = 0;
        }
        if (pageY >= this.pagesMatrix.pageLengthOfY) {
            pageY = this.pagesMatrix.pageLengthOfY - 1;
        }
        else if (pageY < 0) {
            pageY = 0;
        }
        var _a = this.pagesMatrix.getPageStats(pageX, pageY), x = _a.x, y = _a.y;
        return {
            pageX: pageX,
            pageY: pageY,
            x: x,
            y: y,
        };
    };
    SlidePages.prototype.getInitialPage = function (showFirstPage, firstInitialised) {
        if (showFirstPage === void 0) { showFirstPage = false; }
        if (firstInitialised === void 0) { firstInitialised = false; }
        var _a = this.slideOptions, startPageXIndex = _a.startPageXIndex, startPageYIndex = _a.startPageYIndex;
        var firstPageX = this.loopX ? 1 : 0;
        var firstPageY = this.loopY ? 1 : 0;
        var pageX = showFirstPage ? firstPageX : this.currentPage.pageX;
        var pageY = showFirstPage ? firstPageY : this.currentPage.pageY;
        if (firstInitialised) {
            pageX = this.loopX ? startPageXIndex + 1 : startPageXIndex;
            pageY = this.loopY ? startPageYIndex + 1 : startPageYIndex;
        }
        else {
            pageX = showFirstPage ? firstPageX : this.currentPage.pageX;
            pageY = showFirstPage ? firstPageY : this.currentPage.pageY;
        }
        var _b = this.pagesMatrix.getPageStats(pageX, pageY), x = _b.x, y = _b.y;
        return {
            pageX: pageX,
            pageY: pageY,
            x: x,
            y: y,
        };
    };
    SlidePages.prototype.getExposedPage = function (page) {
        var exposedPage = extend({}, page);
        // only pageX or pageY need fix
        if (this.loopX) {
            exposedPage.pageX = this.fixedPage(exposedPage.pageX, this.pagesMatrix.pageLengthOfX - 2);
        }
        if (this.loopY) {
            exposedPage.pageY = this.fixedPage(exposedPage.pageY, this.pagesMatrix.pageLengthOfY - 2);
        }
        return exposedPage;
    };
    SlidePages.prototype.getExposedPageByPageIndex = function (pageIndexX, pageIndexY) {
        var page = {
            pageX: pageIndexX,
            pageY: pageIndexY,
        };
        if (this.loopX) {
            page.pageX = pageIndexX + 1;
        }
        if (this.loopY) {
            page.pageY = pageIndexY + 1;
        }
        var _a = this.pagesMatrix.getPageStats(page.pageX, page.pageY), x = _a.x, y = _a.y;
        return {
            x: x,
            y: y,
            pageX: pageIndexX,
            pageY: pageIndexY,
        };
    };
    SlidePages.prototype.getWillChangedPage = function (page) {
        page = extend({}, page);
        // Page need fix
        if (this.loopX) {
            page.pageX = this.fixedPage(page.pageX, this.pagesMatrix.pageLengthOfX - 2);
            page.x = this.pagesMatrix.getPageStats(page.pageX + 1, 0).x;
        }
        if (this.loopY) {
            page.pageY = this.fixedPage(page.pageY, this.pagesMatrix.pageLengthOfY - 2);
            page.y = this.pagesMatrix.getPageStats(0, page.pageY + 1).y;
        }
        return page;
    };
    SlidePages.prototype.fixedPage = function (page, realPageLen) {
        var pageIndex = [];
        for (var i = 0; i < realPageLen; i++) {
            pageIndex.push(i);
        }
        pageIndex.unshift(realPageLen - 1);
        pageIndex.push(0);
        return pageIndex[page];
    };
    SlidePages.prototype.getPageStats = function () {
        return this.pagesMatrix.getPageStats(this.currentPage.pageX, this.currentPage.pageY);
    };
    SlidePages.prototype.getValidPageIndex = function (x, y) {
        var lastX = this.pagesMatrix.pageLengthOfX - 1;
        var lastY = this.pagesMatrix.pageLengthOfY - 1;
        var firstX = 0;
        var firstY = 0;
        if (this.loopX) {
            x += 1;
            firstX = firstX + 1;
            lastX = lastX - 1;
        }
        if (this.loopY) {
            y += 1;
            firstY = firstY + 1;
            lastY = lastY - 1;
        }
        x = between(x, firstX, lastX);
        y = between(y, firstY, lastY);
        return {
            pageX: x,
            pageY: y,
        };
    };
    SlidePages.prototype.nextPageIndex = function () {
        return this.getPageIndexByDirection("positive" /* Positive */);
    };
    SlidePages.prototype.prevPageIndex = function () {
        return this.getPageIndexByDirection("negative" /* Negative */);
    };
    SlidePages.prototype.getNearestPage = function (x, y) {
        var pageIndex = this.pagesMatrix.getNearestPageIndex(x, y);
        var pageX = pageIndex.pageX, pageY = pageIndex.pageY;
        var newX = this.pagesMatrix.getPageStats(pageX, 0).x;
        var newY = this.pagesMatrix.getPageStats(0, pageY).y;
        return {
            x: newX,
            y: newY,
            pageX: pageX,
            pageY: pageY,
        };
    };
    SlidePages.prototype.getPageByDirection = function (page, directionX, directionY) {
        var pageX = page.pageX, pageY = page.pageY;
        if (pageX === this.currentPage.pageX) {
            pageX = between(pageX + directionX, 0, this.pagesMatrix.pageLengthOfX - 1);
        }
        if (pageY === this.currentPage.pageY) {
            pageY = between(pageY + directionY, 0, this.pagesMatrix.pageLengthOfY - 1);
        }
        var x = this.pagesMatrix.getPageStats(pageX, 0).x;
        var y = this.pagesMatrix.getPageStats(0, pageY).y;
        return {
            x: x,
            y: y,
            pageX: pageX,
            pageY: pageY,
        };
    };
    SlidePages.prototype.resetLoopPage = function () {
        if (this.loopX) {
            if (this.currentPage.pageX === 0) {
                return {
                    pageX: this.pagesMatrix.pageLengthOfX - 2,
                    pageY: this.currentPage.pageY,
                };
            }
            if (this.currentPage.pageX === this.pagesMatrix.pageLengthOfX - 1) {
                return {
                    pageX: 1,
                    pageY: this.currentPage.pageY,
                };
            }
        }
        if (this.loopY) {
            if (this.currentPage.pageY === 0) {
                return {
                    pageX: this.currentPage.pageX,
                    pageY: this.pagesMatrix.pageLengthOfY - 2,
                };
            }
            if (this.currentPage.pageY === this.pagesMatrix.pageLengthOfY - 1) {
                return {
                    pageX: this.currentPage.pageX,
                    pageY: 1,
                };
            }
        }
    };
    SlidePages.prototype.getPageIndexByDirection = function (direction) {
        var x = this.currentPage.pageX;
        var y = this.currentPage.pageY;
        if (this.slideX) {
            x = direction === "negative" /* Negative */ ? x - 1 : x + 1;
        }
        if (this.slideY) {
            y = direction === "negative" /* Negative */ ? y - 1 : y + 1;
        }
        return {
            pageX: x,
            pageY: y,
        };
    };
    SlidePages.prototype.checkSlideLoop = function () {
        this.wannaLoop = this.slideOptions.loop;
        if (this.pagesMatrix.pageLengthOfX > 1) {
            this.slideX = true;
        }
        else {
            this.slideX = false;
        }
        if (this.pagesMatrix.pages[0] && this.pagesMatrix.pageLengthOfY > 1) {
            this.slideY = true;
        }
        else {
            this.slideY = false;
        }
        this.loopX = this.wannaLoop && this.slideX;
        this.loopY = this.wannaLoop && this.slideY;
        if (this.slideX && this.slideY) {
            warn('slide does not support two direction at the same time.');
        }
    };
    return SlidePages;
}());

var sourcePrefix$4 = 'plugins.slide';
var propertiesMap$4 = [
    {
        key: 'next',
        name: 'next',
    },
    {
        key: 'prev',
        name: 'prev',
    },
    {
        key: 'goToPage',
        name: 'goToPage',
    },
    {
        key: 'getCurrentPage',
        name: 'getCurrentPage',
    },
    {
        key: 'startPlay',
        name: 'startPlay',
    },
    {
        key: 'pausePlay',
        name: 'pausePlay',
    },
];
var propertiesConfig$4 = propertiesMap$4.map(function (item) {
    return {
        key: item.key,
        sourceKey: sourcePrefix$4 + "." + item.name,
    };
});

var samePage = function (p1, p2) {
    return p1.pageX === p2.pageX && p1.pageY === p2.pageY;
};
var Slide = /** @class */ (function () {
    function Slide(scroll) {
        this.scroll = scroll;
        this.cachedClonedPageDOM = [];
        this.resetLooping = false;
        this.autoplayTimer = 0;
        if (!this.satisfyInitialization()) {
            return;
        }
        this.init();
    }
    Slide.prototype.satisfyInitialization = function () {
        if (this.scroll.scroller.content.children.length <= 0) {
            warn("slide need at least one slide page to be initialised." +
                "please check your DOM layout.");
            return false;
        }
        return true;
    };
    Slide.prototype.init = function () {
        this.willChangeToPage = extend({}, BASE_PAGE);
        this.handleBScroll();
        this.handleOptions();
        this.handleHooks();
        this.createPages();
    };
    Slide.prototype.createPages = function () {
        this.pages = new SlidePages(this.scroll, this.options);
    };
    Slide.prototype.handleBScroll = function () {
        this.scroll.registerType(['slideWillChange', 'slidePageChanged']);
        this.scroll.proxy(propertiesConfig$4);
    };
    Slide.prototype.handleOptions = function () {
        var userOptions = (this.scroll.options.slide === true
            ? {}
            : this.scroll.options.slide);
        var defaultOptions = {
            loop: true,
            threshold: 0.1,
            speed: 400,
            easing: ease.bounce,
            listenFlick: true,
            autoplay: true,
            interval: 3000,
            startPageXIndex: 0,
            startPageYIndex: 0,
        };
        this.options = extend(defaultOptions, userOptions);
    };
    Slide.prototype.handleLoop = function (prevSlideContent) {
        var loop = this.options.loop;
        var slideContent = this.scroll.scroller.content;
        var currentSlidePagesLength = slideContent.children.length;
        // only should respect loop scene
        if (loop) {
            if (slideContent !== prevSlideContent) {
                this.resetLoopChangedStatus();
                this.removeClonedSlidePage(prevSlideContent);
                currentSlidePagesLength > 1 &&
                    this.cloneFirstAndLastSlidePage(slideContent);
            }
            else {
                // many pages reduce to one page
                if (currentSlidePagesLength === 3 && this.initialised) {
                    this.removeClonedSlidePage(slideContent);
                    this.moreToOnePageInLoop = true;
                    this.oneToMorePagesInLoop = false;
                }
                else if (currentSlidePagesLength > 1) {
                    // one page increases to many page
                    if (this.initialised && this.cachedClonedPageDOM.length === 0) {
                        this.oneToMorePagesInLoop = true;
                        this.moreToOnePageInLoop = false;
                    }
                    else {
                        this.removeClonedSlidePage(slideContent);
                        this.resetLoopChangedStatus();
                    }
                    this.cloneFirstAndLastSlidePage(slideContent);
                }
                else {
                    this.resetLoopChangedStatus();
                }
            }
        }
    };
    Slide.prototype.resetLoopChangedStatus = function () {
        this.moreToOnePageInLoop = false;
        this.oneToMorePagesInLoop = false;
    };
    Slide.prototype.handleHooks = function () {
        var _this = this;
        var scrollHooks = this.scroll.hooks;
        var scrollerHooks = this.scroll.scroller.hooks;
        var listenFlick = this.options.listenFlick;
        this.prevContent = this.scroll.scroller.content;
        this.hooksFn = [];
        // scroll
        this.registerHooks(this.scroll, this.scroll.eventTypes.beforeScrollStart, this.pausePlay);
        this.registerHooks(this.scroll, this.scroll.eventTypes.scrollEnd, this.modifyCurrentPage);
        this.registerHooks(this.scroll, this.scroll.eventTypes.scrollEnd, this.startPlay);
        // for mousewheel event
        if (this.scroll.eventTypes.mousewheelMove) {
            this.registerHooks(this.scroll, this.scroll.eventTypes.mousewheelMove, function () {
                // prevent default action of mousewheelMove
                return true;
            });
            this.registerHooks(this.scroll, this.scroll.eventTypes.mousewheelEnd, function (delta) {
                if (delta.directionX === 1 /* Positive */ ||
                    delta.directionY === 1 /* Positive */) {
                    _this.next();
                }
                if (delta.directionX === -1 /* Negative */ ||
                    delta.directionY === -1 /* Negative */) {
                    _this.prev();
                }
            });
        }
        // scrollHooks
        this.registerHooks(scrollHooks, scrollHooks.eventTypes.refresh, this.refreshHandler);
        this.registerHooks(scrollHooks, scrollHooks.eventTypes.destroy, this.destroy);
        // scroller
        this.registerHooks(scrollerHooks, scrollerHooks.eventTypes.beforeRefresh, function () {
            _this.handleLoop(_this.prevContent);
            _this.setSlideInlineStyle();
        });
        this.registerHooks(scrollerHooks, scrollerHooks.eventTypes.momentum, this.modifyScrollMetaHandler);
        this.registerHooks(scrollerHooks, scrollerHooks.eventTypes.scroll, this.scrollHandler);
        // a click operation will clearTimer, so restart a new one
        this.registerHooks(scrollerHooks, scrollerHooks.eventTypes.checkClick, this.startPlay);
        if (listenFlick) {
            this.registerHooks(scrollerHooks, scrollerHooks.eventTypes.flick, this.flickHandler);
        }
    };
    Slide.prototype.startPlay = function () {
        var _this = this;
        var _a = this.options, interval = _a.interval, autoplay = _a.autoplay;
        if (autoplay) {
            clearTimeout(this.autoplayTimer);
            this.autoplayTimer = window.setTimeout(function () {
                _this.next();
            }, interval);
        }
    };
    Slide.prototype.pausePlay = function () {
        if (this.options.autoplay) {
            clearTimeout(this.autoplayTimer);
        }
    };
    Slide.prototype.setSlideInlineStyle = function () {
        var styleConfigurations = [
            {
                direction: 'scrollX',
                sizeType: 'offsetWidth',
                styleType: 'width',
            },
            {
                direction: 'scrollY',
                sizeType: 'offsetHeight',
                styleType: 'height',
            },
        ];
        var _a = this.scroll.scroller, slideContent = _a.content, slideWrapper = _a.wrapper;
        var scrollOptions = this.scroll.options;
        styleConfigurations.forEach(function (_a) {
            var direction = _a.direction, sizeType = _a.sizeType, styleType = _a.styleType;
            // wanna scroll in this direction
            if (scrollOptions[direction]) {
                var size = slideWrapper[sizeType];
                var children = slideContent.children;
                var length_1 = children.length;
                for (var i = 0; i < length_1; i++) {
                    var slidePageDOM = children[i];
                    slidePageDOM.style[styleType] = size + 'px';
                }
                slideContent.style[styleType] = size * length_1 + 'px';
            }
        });
    };
    Slide.prototype.next = function (time, easing) {
        var _a = this.pages.nextPageIndex(), pageX = _a.pageX, pageY = _a.pageY;
        this.goTo(pageX, pageY, time, easing);
    };
    Slide.prototype.prev = function (time, easing) {
        var _a = this.pages.prevPageIndex(), pageX = _a.pageX, pageY = _a.pageY;
        this.goTo(pageX, pageY, time, easing);
    };
    Slide.prototype.goToPage = function (pageX, pageY, time, easing) {
        var pageIndex = this.pages.getValidPageIndex(pageX, pageY);
        this.goTo(pageIndex.pageX, pageIndex.pageY, time, easing);
    };
    Slide.prototype.getCurrentPage = function () {
        return this.exposedPage || this.pages.getInitialPage(false, true);
    };
    Slide.prototype.setCurrentPage = function (page) {
        this.pages.setCurrentPage(page);
        this.exposedPage = this.pages.getExposedPage(page);
    };
    Slide.prototype.nearestPage = function (x, y) {
        var _a = this.scroll.scroller, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY;
        var maxScrollPosX = scrollBehaviorX.maxScrollPos, minScrollPosX = scrollBehaviorX.minScrollPos;
        var maxScrollPosY = scrollBehaviorY.maxScrollPos, minScrollPosY = scrollBehaviorY.minScrollPos;
        return this.pages.getNearestPage(between(x, maxScrollPosX, minScrollPosX), between(y, maxScrollPosY, minScrollPosY));
    };
    Slide.prototype.satisfyThreshold = function (x, y) {
        var _a = this.scroll.scroller, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY;
        var satisfied = true;
        if (Math.abs(x - scrollBehaviorX.absStartPos) <= this.thresholdX &&
            Math.abs(y - scrollBehaviorY.absStartPos) <= this.thresholdY) {
            satisfied = false;
        }
        return satisfied;
    };
    Slide.prototype.refreshHandler = function (content) {
        var _this = this;
        if (!this.satisfyInitialization()) {
            return;
        }
        this.pages.refresh();
        this.computeThreshold();
        var contentChanged = (this.contentChanged = this.prevContent !== content);
        if (contentChanged) {
            this.prevContent = content;
        }
        var initPage = this.pages.getInitialPage(this.oneToMorePagesInLoop || this.moreToOnePageInLoop, contentChanged || !this.initialised);
        if (this.initialised) {
            this.goTo(initPage.pageX, initPage.pageY, 0);
        }
        else {
            this.registerHooks(this.scroll.hooks, this.scroll.hooks.eventTypes.beforeInitialScrollTo, function (position) {
                _this.initialised = true;
                position.x = initPage.x;
                position.y = initPage.y;
            });
        }
        this.startPlay();
    };
    Slide.prototype.computeThreshold = function () {
        var threshold = this.options.threshold;
        // Integer
        if (threshold % 1 === 0) {
            this.thresholdX = threshold;
            this.thresholdY = threshold;
        }
        else {
            // decimal
            var _a = this.pages.getPageStats(), width = _a.width, height = _a.height;
            this.thresholdX = Math.round(width * threshold);
            this.thresholdY = Math.round(height * threshold);
        }
    };
    Slide.prototype.cloneFirstAndLastSlidePage = function (slideContent) {
        var children = slideContent.children;
        var preprendDOM = children[children.length - 1].cloneNode(true);
        var appendDOM = children[0].cloneNode(true);
        prepend(preprendDOM, slideContent);
        slideContent.appendChild(appendDOM);
        this.cachedClonedPageDOM = [preprendDOM, appendDOM];
    };
    Slide.prototype.removeClonedSlidePage = function (slideContent) {
        // maybe slideContent has removed from DOM Tree
        var slidePages = (slideContent && slideContent.children) || [];
        if (slidePages.length) {
            this.cachedClonedPageDOM.forEach(function (el) {
                removeChild(slideContent, el);
            });
        }
        this.cachedClonedPageDOM = [];
    };
    Slide.prototype.modifyCurrentPage = function (point) {
        var _a = this.getCurrentPage(), prevExposedPageX = _a.pageX, prevExposedPageY = _a.pageY;
        var newPage = this.nearestPage(point.x, point.y);
        this.setCurrentPage(newPage);
        /* istanbul ignore if */
        if (this.contentChanged) {
            this.contentChanged = false;
            return true;
        }
        var _b = this.getCurrentPage(), currentExposedPageX = _b.pageX, currentExposedPageY = _b.pageY;
        this.pageWillChangeTo(newPage);
        // loop is true, and one page becomes many pages when call bs.refresh
        if (this.oneToMorePagesInLoop) {
            this.oneToMorePagesInLoop = false;
            return true;
        }
        // loop is true, and many page becomes one page when call bs.refresh
        // if prevPage > 0, dispatch slidePageChanged and scrollEnd events
        /* istanbul ignore if */
        if (this.moreToOnePageInLoop &&
            prevExposedPageX === 0 &&
            prevExposedPageY === 0) {
            this.moreToOnePageInLoop = false;
            return true;
        }
        if (prevExposedPageX !== currentExposedPageX ||
            prevExposedPageY !== currentExposedPageY) {
            // only trust pageX & pageY when loop is true
            var page = this.pages.getExposedPageByPageIndex(currentExposedPageX, currentExposedPageY);
            this.scroll.trigger(this.scroll.eventTypes.slidePageChanged, page);
        }
        // triggered by resetLoop
        if (this.resetLooping) {
            this.resetLooping = false;
            return;
        }
        var changePage = this.pages.resetLoopPage();
        if (changePage) {
            this.resetLooping = true;
            this.goTo(changePage.pageX, changePage.pageY, 0);
            // stop user's scrollEnd
            // since it is a seamless scroll
            return true;
        }
    };
    Slide.prototype.goTo = function (pageX, pageY, time, easing) {
        var newPage = this.pages.getInternalPage(pageX, pageY);
        var scrollEasing = easing || this.options.easing || ease.bounce;
        var x = newPage.x, y = newPage.y;
        var deltaX = x - this.scroll.scroller.scrollBehaviorX.currentPos;
        var deltaY = y - this.scroll.scroller.scrollBehaviorY.currentPos;
        /* istanbul ignore if */
        if (!deltaX && !deltaY) {
            this.scroll.scroller.togglePointerEvents(true);
            return;
        }
        time = time === undefined ? this.getEaseTime(deltaX, deltaY) : time;
        this.scroll.scroller.scrollTo(x, y, time, scrollEasing);
    };
    Slide.prototype.flickHandler = function () {
        var _a = this.scroll.scroller, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY;
        var currentPosX = scrollBehaviorX.currentPos, startPosX = scrollBehaviorX.startPos, directionX = scrollBehaviorX.direction;
        var currentPosY = scrollBehaviorY.currentPos, startPosY = scrollBehaviorY.startPos, directionY = scrollBehaviorY.direction;
        var _b = this.pages.currentPage, pageX = _b.pageX, pageY = _b.pageY;
        var time = this.getEaseTime(currentPosX - startPosX, currentPosY - startPosY);
        this.goTo(pageX + directionX, pageY + directionY, time);
    };
    Slide.prototype.getEaseTime = function (deltaX, deltaY) {
        return (this.options.speed ||
            Math.max(Math.max(Math.min(Math.abs(deltaX), 1000), Math.min(Math.abs(deltaY), 1000)), 300));
    };
    Slide.prototype.modifyScrollMetaHandler = function (scrollMeta) {
        var _a = this.scroll.scroller, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY, animater = _a.animater;
        var newX = scrollMeta.newX;
        var newY = scrollMeta.newY;
        var newPage = this.satisfyThreshold(newX, newY) || animater.forceStopped
            ? this.pages.getPageByDirection(this.nearestPage(newX, newY), scrollBehaviorX.direction, scrollBehaviorY.direction)
            : this.pages.currentPage;
        scrollMeta.time = this.getEaseTime(scrollMeta.newX - newPage.x, scrollMeta.newY - newPage.y);
        scrollMeta.newX = newPage.x;
        scrollMeta.newY = newPage.y;
        scrollMeta.easing = this.options.easing || ease.bounce;
    };
    Slide.prototype.scrollHandler = function (_a) {
        var x = _a.x, y = _a.y;
        if (this.satisfyThreshold(x, y)) {
            var newPage = this.nearestPage(x, y);
            this.pageWillChangeTo(newPage);
        }
    };
    Slide.prototype.pageWillChangeTo = function (newPage) {
        var changeToPage = this.pages.getWillChangedPage(newPage);
        if (!samePage(this.willChangeToPage, changeToPage)) {
            this.willChangeToPage = changeToPage;
            this.scroll.trigger(this.scroll.eventTypes.slideWillChange, this.willChangeToPage);
        }
    };
    Slide.prototype.registerHooks = function (hooks, name, handler) {
        hooks.on(name, handler, this);
        this.hooksFn.push([hooks, name, handler]);
    };
    Slide.prototype.destroy = function () {
        var slideContent = this.scroll.scroller.content;
        var _a = this.options, loop = _a.loop, autoplay = _a.autoplay;
        if (loop) {
            this.removeClonedSlidePage(slideContent);
        }
        if (autoplay) {
            clearTimeout(this.autoplayTimer);
        }
        this.hooksFn.forEach(function (item) {
            var hooks = item[0];
            var hooksName = item[1];
            var handlerFn = item[2];
            if (hooks.eventTypes[hooksName]) {
                hooks.off(hooksName, handlerFn);
            }
        });
        this.hooksFn.length = 0;
    };
    Slide.pluginName = 'slide';
    return Slide;
}());

var sourcePrefix$3 = 'plugins.wheel';
var propertiesMap$3 = [
    {
        key: 'wheelTo',
        name: 'wheelTo',
    },
    {
        key: 'getSelectedIndex',
        name: 'getSelectedIndex',
    },
    {
        key: 'restorePosition',
        name: 'restorePosition',
    },
];
var propertiesConfig$3 = propertiesMap$3.map(function (item) {
    return {
        key: item.key,
        sourceKey: sourcePrefix$3 + "." + item.name,
    };
});

var WHEEL_INDEX_CHANGED_EVENT_NAME = 'wheelIndexChanged';
var CONSTANTS = {
    rate: 4
};
var Wheel = /** @class */ (function () {
    function Wheel(scroll) {
        this.scroll = scroll;
        this.init();
    }
    Wheel.prototype.init = function () {
        this.handleBScroll();
        this.handleOptions();
        this.handleHooks();
        // init boundary for Wheel
        this.refreshBoundary();
        this.setSelectedIndex(this.options.selectedIndex);
    };
    Wheel.prototype.handleBScroll = function () {
        this.scroll.proxy(propertiesConfig$3);
        this.scroll.registerType([WHEEL_INDEX_CHANGED_EVENT_NAME]);
    };
    Wheel.prototype.handleOptions = function () {
        var userOptions = (this.scroll.options.wheel === true
            ? {}
            : this.scroll.options.wheel);
        var defaultOptions = {
            wheelWrapperClass: 'wheel-scroll',
            wheelItemClass: 'wheel-item',
            rotate: 25,
            adjustTime: 400,
            selectedIndex: 0,
            wheelDisabledItemClass: 'wheel-disabled-item'
        };
        this.options = extend(defaultOptions, userOptions);
    };
    Wheel.prototype.handleHooks = function () {
        var _this = this;
        var scroll = this.scroll;
        var scroller = this.scroll.scroller;
        var actionsHandler = scroller.actionsHandler, scrollBehaviorX = scroller.scrollBehaviorX, scrollBehaviorY = scroller.scrollBehaviorY, animater = scroller.animater;
        var prevContent = scroller.content;
        // BScroll
        scroll.on(scroll.eventTypes.scrollEnd, function (position) {
            var index = _this.findNearestValidWheel(position.y).index;
            if (scroller.animater.forceStopped && !_this.isAdjustingPosition) {
                _this.target = _this.items[index];
                // since stopped from an animation.
                // prevent user's scrollEnd callback triggered twice
                return true;
            }
            else {
                _this.setSelectedIndex(index);
                if (_this.isAdjustingPosition) {
                    _this.isAdjustingPosition = false;
                }
            }
        });
        // BScroll.hooks
        this.scroll.hooks.on(this.scroll.hooks.eventTypes.refresh, function (content) {
            if (content !== prevContent) {
                prevContent = content;
                _this.setSelectedIndex(_this.options.selectedIndex, true);
            }
            // rotate all wheel-items
            // because position may not change
            _this.rotateX(_this.scroll.y);
            // check we are stop at a disable item or not
            _this.wheelTo(_this.selectedIndex, 0);
        });
        this.scroll.hooks.on(this.scroll.hooks.eventTypes.beforeInitialScrollTo, function (position) {
            // selectedIndex has higher priority than bs.options.startY
            position.x = 0;
            position.y = -(_this.selectedIndex * _this.itemHeight);
        });
        // Scroller
        scroller.hooks.on(scroller.hooks.eventTypes.checkClick, function () {
            var index = HTMLCollectionToArray(_this.items).indexOf(_this.target);
            if (index === -1)
                return true;
            _this.wheelTo(index, _this.options.adjustTime, ease.swipe);
            return true;
        });
        scroller.hooks.on(scroller.hooks.eventTypes.scrollTo, function (endPoint) {
            endPoint.y = _this.findNearestValidWheel(endPoint.y).y;
        });
        // when content is scrolling
        // click wheel-item DOM repeatedly and crazily will cause scrollEnd not triggered
        // so reset forceStopped
        scroller.hooks.on(scroller.hooks.eventTypes.minDistanceScroll, function () {
            var animater = scroller.animater;
            if (animater.forceStopped === true) {
                animater.forceStopped = false;
            }
        });
        scroller.hooks.on(scroller.hooks.eventTypes.scrollToElement, function (el, pos) {
            if (!hasClass(el, _this.options.wheelItemClass)) {
                return true;
            }
            else {
                pos.top = _this.findNearestValidWheel(pos.top).y;
            }
        });
        // ActionsHandler
        actionsHandler.hooks.on(actionsHandler.hooks.eventTypes.beforeStart, function (e) {
            _this.target = e.target;
        });
        // ScrollBehaviorX
        // Wheel has no x direction now
        scrollBehaviorX.hooks.on(scrollBehaviorX.hooks.eventTypes.computeBoundary, function (boundary) {
            boundary.maxScrollPos = 0;
            boundary.minScrollPos = 0;
        });
        // ScrollBehaviorY
        scrollBehaviorY.hooks.on(scrollBehaviorY.hooks.eventTypes.computeBoundary, function (boundary) {
            _this.items = _this.scroll.scroller.content.children;
            _this.checkWheelAllDisabled();
            _this.itemHeight =
                _this.items.length > 0
                    ? scrollBehaviorY.contentSize / _this.items.length
                    : 0;
            boundary.maxScrollPos = -_this.itemHeight * (_this.items.length - 1);
            boundary.minScrollPos = 0;
        });
        scrollBehaviorY.hooks.on(scrollBehaviorY.hooks.eventTypes.momentum, function (momentumInfo) {
            momentumInfo.rate = CONSTANTS.rate;
            momentumInfo.destination = _this.findNearestValidWheel(momentumInfo.destination).y;
        });
        scrollBehaviorY.hooks.on(scrollBehaviorY.hooks.eventTypes.end, function (momentumInfo) {
            var validWheel = _this.findNearestValidWheel(scrollBehaviorY.currentPos);
            momentumInfo.destination = validWheel.y;
            momentumInfo.duration = _this.options.adjustTime;
        });
        // Animater
        animater.hooks.on(animater.hooks.eventTypes.time, function (time) {
            _this.transitionDuration(time);
        });
        animater.hooks.on(animater.hooks.eventTypes.timeFunction, function (easing) {
            _this.timeFunction(easing);
        });
        // bs.stop() to make wheel stop at a correct position when pending
        animater.hooks.on(animater.hooks.eventTypes.callStop, function () {
            var index = _this.findNearestValidWheel(_this.scroll.y).index;
            _this.isAdjustingPosition = true;
            _this.wheelTo(index, 0);
        });
        // Translater
        animater.translater.hooks.on(animater.translater.hooks.eventTypes.translate, function (endPoint) {
            _this.rotateX(endPoint.y);
        });
    };
    Wheel.prototype.refreshBoundary = function () {
        var _a = this.scroll.scroller, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY, content = _a.content;
        scrollBehaviorX.refresh(content);
        scrollBehaviorY.refresh(content);
    };
    Wheel.prototype.setSelectedIndex = function (index, contentChanged) {
        if (contentChanged === void 0) { contentChanged = false; }
        var prevSelectedIndex = this.selectedIndex;
        this.selectedIndex = index;
        // if content DOM changed, should not trigger event
        if (prevSelectedIndex !== index && !contentChanged) {
            this.scroll.trigger(WHEEL_INDEX_CHANGED_EVENT_NAME, index);
        }
    };
    Wheel.prototype.getSelectedIndex = function () {
        return this.selectedIndex;
    };
    Wheel.prototype.wheelTo = function (index, time, ease) {
        if (index === void 0) { index = 0; }
        if (time === void 0) { time = 0; }
        var y = -index * this.itemHeight;
        this.scroll.scrollTo(0, y, time, ease);
    };
    Wheel.prototype.restorePosition = function () {
        // bs is scrolling
        var isPending = this.scroll.pending;
        if (isPending) {
            var selectedIndex = this.getSelectedIndex();
            this.scroll.scroller.animater.clearTimer();
            this.wheelTo(selectedIndex, 0);
        }
    };
    Wheel.prototype.transitionDuration = function (time) {
        for (var i = 0; i < this.items.length; i++) {
            this.items[i].style[style.transitionDuration] =
                time + 'ms';
        }
    };
    Wheel.prototype.timeFunction = function (easing) {
        for (var i = 0; i < this.items.length; i++) {
            this.items[i].style[style.transitionTimingFunction] = easing;
        }
    };
    Wheel.prototype.rotateX = function (y) {
        var _a = this.options.rotate, rotate = _a === void 0 ? 25 : _a;
        for (var i = 0; i < this.items.length; i++) {
            var deg = rotate * (y / this.itemHeight + i);
            // Too small value is invalid in some phones, issue 1026
            var SafeDeg = deg.toFixed(3);
            this.items[i].style[style.transform] = "rotateX(" + SafeDeg + "deg)";
        }
    };
    Wheel.prototype.findNearestValidWheel = function (y) {
        y = y > 0 ? 0 : y < this.scroll.maxScrollY ? this.scroll.maxScrollY : y;
        var currentIndex = Math.abs(Math.round(-y / this.itemHeight));
        var cacheIndex = currentIndex;
        var items = this.items;
        var wheelDisabledItemClassName = this.options
            .wheelDisabledItemClass;
        // implement web native select element
        // first, check whether there is a enable item whose index is smaller than currentIndex
        // then, check whether there is a enable item whose index is bigger than currentIndex
        // otherwise, there are all disabled items, just keep currentIndex unchange
        while (currentIndex >= 0) {
            if (!hasClass(items[currentIndex], wheelDisabledItemClassName)) {
                break;
            }
            currentIndex--;
        }
        if (currentIndex < 0) {
            currentIndex = cacheIndex;
            while (currentIndex <= items.length - 1) {
                if (!hasClass(items[currentIndex], wheelDisabledItemClassName)) {
                    break;
                }
                currentIndex++;
            }
        }
        // keep it unchange when all the items are disabled
        if (currentIndex === items.length) {
            currentIndex = cacheIndex;
        }
        // when all the items are disabled, selectedIndex should always be -1
        return {
            index: this.wheelItemsAllDisabled ? -1 : currentIndex,
            y: -currentIndex * this.itemHeight
        };
    };
    Wheel.prototype.checkWheelAllDisabled = function () {
        var wheelDisabledItemClassName = this.options.wheelDisabledItemClass;
        var items = this.items;
        this.wheelItemsAllDisabled = true;
        for (var i = 0; i < items.length; i++) {
            if (!hasClass(items[i], wheelDisabledItemClassName)) {
                this.wheelItemsAllDisabled = false;
                break;
            }
        }
    };
    Wheel.pluginName = 'wheel';
    return Wheel;
}());

var sourcePrefix$2 = 'plugins.zoom';
var propertiesMap$2 = [
    {
        key: 'zoomTo',
        name: 'zoomTo'
    }
];
var propertiesConfig$2 = propertiesMap$2.map(function (item) {
    return {
        key: item.key,
        sourceKey: sourcePrefix$2 + "." + item.name
    };
});

var TWO_FINGERS = 2;
var RAW_SCALE = 1;
var Zoom = /** @class */ (function () {
    function Zoom(scroll) {
        this.scroll = scroll;
        this.scale = RAW_SCALE;
        this.prevScale = 1;
        this.init();
    }
    Zoom.prototype.init = function () {
        this.handleBScroll();
        this.handleOptions();
        this.handleHooks();
        this.tryInitialZoomTo(this.zoomOpt);
    };
    Zoom.prototype.zoomTo = function (scale, x, y, bounceTime) {
        var _a = this.resolveOrigin(x, y), originX = _a.originX, originY = _a.originY;
        var origin = {
            x: originX,
            y: originY,
            baseScale: this.scale,
        };
        this._doZoomTo(scale, origin, bounceTime, true);
    };
    Zoom.prototype.handleBScroll = function () {
        this.scroll.proxy(propertiesConfig$2);
        this.scroll.registerType([
            'beforeZoomStart',
            'zoomStart',
            'zooming',
            'zoomEnd',
        ]);
    };
    Zoom.prototype.handleOptions = function () {
        var userOptions = (this.scroll.options.zoom === true
            ? {}
            : this.scroll.options.zoom);
        var defaultOptions = {
            start: 1,
            min: 1,
            max: 4,
            initialOrigin: [0, 0],
            minimalZoomDistance: 5,
            bounceTime: 800,
        };
        this.zoomOpt = extend(defaultOptions, userOptions);
    };
    Zoom.prototype.handleHooks = function () {
        var _this = this;
        var scroll = this.scroll;
        var scroller = this.scroll.scroller;
        this.wrapper = this.scroll.scroller.wrapper;
        this.setTransformOrigin(this.scroll.scroller.content);
        var scrollBehaviorX = scroller.scrollBehaviorX;
        var scrollBehaviorY = scroller.scrollBehaviorY;
        this.hooksFn = [];
        // BScroll
        this.registerHooks(scroll.hooks, scroll.hooks.eventTypes.contentChanged, function (content) {
            _this.setTransformOrigin(content);
            _this.scale = RAW_SCALE;
            _this.tryInitialZoomTo(_this.zoomOpt);
        });
        this.registerHooks(scroll.hooks, scroll.hooks.eventTypes.beforeInitialScrollTo, function () {
            // if perform a zoom action, we should prevent initial scroll when initialised
            if (_this.zoomOpt.start !== RAW_SCALE) {
                return true;
            }
        });
        // enlarge boundary
        this.registerHooks(scrollBehaviorX.hooks, scrollBehaviorX.hooks.eventTypes.beforeComputeBoundary, function () {
            // content may change, don't cache it's size
            var contentSize = getRect(_this.scroll.scroller.content);
            scrollBehaviorX.contentSize = Math.floor(contentSize.width * _this.scale);
        });
        this.registerHooks(scrollBehaviorY.hooks, scrollBehaviorY.hooks.eventTypes.beforeComputeBoundary, function () {
            // content may change, don't cache it's size
            var contentSize = getRect(_this.scroll.scroller.content);
            scrollBehaviorY.contentSize = Math.floor(contentSize.height * _this.scale);
        });
        // touch event
        this.registerHooks(scroller.actions.hooks, scroller.actions.hooks.eventTypes.start, function (e) {
            var numberOfFingers = (e.touches && e.touches.length) || 0;
            _this.fingersOperation(numberOfFingers);
            if (numberOfFingers === TWO_FINGERS) {
                _this.zoomStart(e);
            }
        });
        this.registerHooks(scroller.actions.hooks, scroller.actions.hooks.eventTypes.beforeMove, function (e) {
            var numberOfFingers = (e.touches && e.touches.length) || 0;
            _this.fingersOperation(numberOfFingers);
            if (numberOfFingers === TWO_FINGERS) {
                _this.zoom(e);
                return true;
            }
        });
        this.registerHooks(scroller.actions.hooks, scroller.actions.hooks.eventTypes.beforeEnd, function (e) {
            var numberOfFingers = _this.fingersOperation();
            if (numberOfFingers === TWO_FINGERS) {
                _this.zoomEnd();
                return true;
            }
        });
        this.registerHooks(scroller.translater.hooks, scroller.translater.hooks.eventTypes.beforeTranslate, function (transformStyle, point) {
            var scale = point.scale ? point.scale : _this.prevScale;
            _this.prevScale = scale;
            transformStyle.push("scale(" + scale + ")");
        });
        this.registerHooks(scroller.hooks, scroller.hooks.eventTypes.scrollEnd, function () {
            if (_this.fingersOperation() === TWO_FINGERS) {
                _this.scroll.trigger(_this.scroll.eventTypes.zoomEnd, {
                    scale: _this.scale,
                });
            }
        });
        this.registerHooks(this.scroll.hooks, 'destroy', this.destroy);
    };
    Zoom.prototype.setTransformOrigin = function (content) {
        content.style[style.transformOrigin] = '0 0';
    };
    Zoom.prototype.tryInitialZoomTo = function (options) {
        var start = options.start, initialOrigin = options.initialOrigin;
        var _a = this.scroll.scroller, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY;
        if (start !== RAW_SCALE) {
            // Movable plugin may wanna modify minScrollPos or maxScrollPos
            // so we force Movable to caculate them
            this.resetBoundaries([scrollBehaviorX, scrollBehaviorY]);
            this.zoomTo(start, initialOrigin[0], initialOrigin[1], 0);
        }
    };
    // getter or setter operation
    Zoom.prototype.fingersOperation = function (amounts) {
        if (typeof amounts === 'number') {
            this.numberOfFingers = amounts;
        }
        else {
            return this.numberOfFingers;
        }
    };
    Zoom.prototype._doZoomTo = function (scale, origin, time, useCurrentPos) {
        var _this = this;
        if (time === void 0) { time = this.zoomOpt.bounceTime; }
        if (useCurrentPos === void 0) { useCurrentPos = false; }
        var _a = this.zoomOpt, min = _a.min, max = _a.max;
        var fromScale = this.scale;
        var toScale = between(scale, min, max);
        (function () {
            if (time === 0) {
                _this.scroll.trigger(_this.scroll.eventTypes.zooming, {
                    scale: toScale,
                });
                return;
            }
            if (time > 0) {
                var timer_1;
                var startTime_1 = getNow();
                var endTime_1 = startTime_1 + time;
                var scheduler_1 = function () {
                    var now = getNow();
                    if (now >= endTime_1) {
                        _this.scroll.trigger(_this.scroll.eventTypes.zooming, {
                            scale: toScale,
                        });
                        cancelAnimationFrame(timer_1);
                        return;
                    }
                    var ratio = ease.bounce.fn((now - startTime_1) / time);
                    var currentScale = ratio * (toScale - fromScale) + fromScale;
                    _this.scroll.trigger(_this.scroll.eventTypes.zooming, {
                        scale: currentScale,
                    });
                    timer_1 = requestAnimationFrame(scheduler_1);
                };
                // start scheduler job
                scheduler_1();
            }
        })();
        // suppose you are zooming by two fingers
        this.fingersOperation(2);
        this._zoomTo(toScale, fromScale, origin, time, useCurrentPos);
    };
    Zoom.prototype._zoomTo = function (toScale, fromScale, origin, time, useCurrentPos) {
        if (useCurrentPos === void 0) { useCurrentPos = false; }
        var ratio = toScale / origin.baseScale;
        this.setScale(toScale);
        var scroller = this.scroll.scroller;
        var scrollBehaviorX = scroller.scrollBehaviorX, scrollBehaviorY = scroller.scrollBehaviorY;
        this.resetBoundaries([scrollBehaviorX, scrollBehaviorY]);
        // position is restrained in boundary
        var newX = this.getNewPos(origin.x, ratio, scrollBehaviorX, true, useCurrentPos);
        var newY = this.getNewPos(origin.y, ratio, scrollBehaviorY, true, useCurrentPos);
        if (scrollBehaviorX.currentPos !== Math.round(newX) ||
            scrollBehaviorY.currentPos !== Math.round(newY) ||
            toScale !== fromScale) {
            scroller.scrollTo(newX, newY, time, ease.bounce, {
                start: {
                    scale: fromScale,
                },
                end: {
                    scale: toScale,
                },
            });
        }
    };
    Zoom.prototype.resolveOrigin = function (x, y) {
        var _a = this.scroll.scroller, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY;
        var resolveFormula = {
            left: function () {
                return 0;
            },
            top: function () {
                return 0;
            },
            right: function () {
                return scrollBehaviorX.contentSize;
            },
            bottom: function () {
                return scrollBehaviorY.contentSize;
            },
            center: function (index) {
                var baseSize = index === 0
                    ? scrollBehaviorX.contentSize
                    : scrollBehaviorY.contentSize;
                return baseSize / 2;
            },
        };
        return {
            originX: typeof x === 'number' ? x : resolveFormula[x](0),
            originY: typeof y === 'number' ? y : resolveFormula[y](1),
        };
    };
    Zoom.prototype.zoomStart = function (e) {
        var firstFinger = e.touches[0];
        var secondFinger = e.touches[1];
        this.startDistance = this.getFingerDistance(e);
        this.startScale = this.scale;
        var _a = offsetToBody(this.wrapper), left = _a.left, top = _a.top;
        this.origin = {
            x: Math.abs(firstFinger.pageX + secondFinger.pageX) / 2 +
                left -
                this.scroll.x,
            y: Math.abs(firstFinger.pageY + secondFinger.pageY) / 2 +
                top -
                this.scroll.y,
            baseScale: this.startScale,
        };
        this.scroll.trigger(this.scroll.eventTypes.beforeZoomStart);
    };
    Zoom.prototype.zoom = function (e) {
        var currentDistance = this.getFingerDistance(e);
        // at least minimalZoomDistance pixels for the zoom to initiate
        if (!this.zoomed &&
            Math.abs(currentDistance - this.startDistance) <
                this.zoomOpt.minimalZoomDistance) {
            return;
        }
        // when out of boundary , perform a damping algorithm
        var endScale = this.dampingScale((currentDistance / this.startDistance) * this.startScale);
        var ratio = endScale / this.startScale;
        this.setScale(endScale);
        if (!this.zoomed) {
            this.zoomed = true;
            this.scroll.trigger(this.scroll.eventTypes.zoomStart);
        }
        var scroller = this.scroll.scroller;
        var scrollBehaviorX = scroller.scrollBehaviorX, scrollBehaviorY = scroller.scrollBehaviorY;
        var x = this.getNewPos(this.origin.x, ratio, scrollBehaviorX, false, false);
        var y = this.getNewPos(this.origin.y, ratio, scrollBehaviorY, false, false);
        this.scroll.trigger(this.scroll.eventTypes.zooming, {
            scale: this.scale,
        });
        scroller.translater.translate({ x: x, y: y, scale: endScale });
    };
    Zoom.prototype.zoomEnd = function () {
        if (!this.zoomed)
            return;
        // if out of boundary, do rebound!
        if (this.shouldRebound()) {
            this._doZoomTo(this.scale, this.origin, this.zoomOpt.bounceTime);
            return;
        }
        this.scroll.trigger(this.scroll.eventTypes.zoomEnd, { scale: this.scale });
    };
    Zoom.prototype.getFingerDistance = function (e) {
        var firstFinger = e.touches[0];
        var secondFinger = e.touches[1];
        var deltaX = Math.abs(firstFinger.pageX - secondFinger.pageX);
        var deltaY = Math.abs(firstFinger.pageY - secondFinger.pageY);
        return getDistance(deltaX, deltaY);
    };
    Zoom.prototype.shouldRebound = function () {
        var _a = this.zoomOpt, min = _a.min, max = _a.max;
        var currentScale = this.scale;
        // scale exceeded!
        if (currentScale !== between(currentScale, min, max)) {
            return true;
        }
        var _b = this.scroll.scroller, scrollBehaviorX = _b.scrollBehaviorX, scrollBehaviorY = _b.scrollBehaviorY;
        // enlarge boundaries manually when zoom is end
        this.resetBoundaries([scrollBehaviorX, scrollBehaviorY]);
        var xInBoundary = scrollBehaviorX.checkInBoundary().inBoundary;
        var yInBoundary = scrollBehaviorX.checkInBoundary().inBoundary;
        return !(xInBoundary && yInBoundary);
    };
    Zoom.prototype.dampingScale = function (scale) {
        var _a = this.zoomOpt, min = _a.min, max = _a.max;
        if (scale < min) {
            scale = 0.5 * min * Math.pow(2.0, scale / min);
        }
        else if (scale > max) {
            scale = 2.0 * max * Math.pow(0.5, max / scale);
        }
        return scale;
    };
    Zoom.prototype.setScale = function (scale) {
        this.scale = scale;
    };
    Zoom.prototype.resetBoundaries = function (scrollBehaviorPairs) {
        scrollBehaviorPairs.forEach(function (behavior) { return behavior.computeBoundary(); });
    };
    Zoom.prototype.getNewPos = function (origin, lastScale, scrollBehavior, shouldInBoundary, useCurrentPos) {
        if (useCurrentPos === void 0) { useCurrentPos = false; }
        var newPos = origin -
            origin * lastScale +
            (useCurrentPos ? scrollBehavior.currentPos : scrollBehavior.startPos);
        if (shouldInBoundary) {
            newPos = between(newPos, scrollBehavior.maxScrollPos, scrollBehavior.minScrollPos);
        }
        // maxScrollPos or minScrollPos maybe a negative or positive digital
        return newPos > 0 ? Math.floor(newPos) : Math.ceil(newPos);
    };
    Zoom.prototype.registerHooks = function (hooks, name, handler) {
        hooks.on(name, handler, this);
        this.hooksFn.push([hooks, name, handler]);
    };
    Zoom.prototype.destroy = function () {
        this.hooksFn.forEach(function (item) {
            var hooks = item[0];
            var hooksName = item[1];
            var handlerFn = item[2];
            hooks.off(hooksName, handlerFn);
        });
        this.hooksFn.length = 0;
    };
    Zoom.pluginName = 'zoom';
    return Zoom;
}());

var BScrollFamily = /** @class */ (function () {
    function BScrollFamily(scroll) {
        this.ancestors = [];
        this.descendants = [];
        this.hooksManager = [];
        this.analyzed = false;
        this.selfScroll = scroll;
    }
    BScrollFamily.create = function (scroll) {
        return new BScrollFamily(scroll);
    };
    BScrollFamily.prototype.hasAncestors = function (bscrollFamily) {
        var index = findIndex(this.ancestors, function (_a) {
            var item = _a[0];
            return item === bscrollFamily;
        });
        return index > -1;
    };
    BScrollFamily.prototype.hasDescendants = function (bscrollFamily) {
        var index = findIndex(this.descendants, function (_a) {
            var item = _a[0];
            return item === bscrollFamily;
        });
        return index > -1;
    };
    BScrollFamily.prototype.addAncestor = function (bscrollFamily, distance) {
        var ancestors = this.ancestors;
        ancestors.push([bscrollFamily, distance]);
        // by ascend
        ancestors.sort(function (a, b) {
            return a[1] - b[1];
        });
    };
    BScrollFamily.prototype.addDescendant = function (bscrollFamily, distance) {
        var descendants = this.descendants;
        descendants.push([bscrollFamily, distance]);
        // by ascend
        descendants.sort(function (a, b) {
            return a[1] - b[1];
        });
    };
    BScrollFamily.prototype.removeAncestor = function (bscrollFamily) {
        var ancestors = this.ancestors;
        if (ancestors.length) {
            var index = findIndex(this.ancestors, function (_a) {
                var item = _a[0];
                return item === bscrollFamily;
            });
            if (index > -1) {
                return ancestors.splice(index, 1);
            }
        }
    };
    BScrollFamily.prototype.removeDescendant = function (bscrollFamily) {
        var descendants = this.descendants;
        if (descendants.length) {
            var index = findIndex(this.descendants, function (_a) {
                var item = _a[0];
                return item === bscrollFamily;
            });
            if (index > -1) {
                return descendants.splice(index, 1);
            }
        }
    };
    BScrollFamily.prototype.registerHooks = function (hook, eventType, handler) {
        hook.on(eventType, handler);
        this.hooksManager.push([hook, eventType, handler]);
    };
    BScrollFamily.prototype.setAnalyzed = function (flag) {
        if (flag === void 0) { flag = false; }
        this.analyzed = flag;
    };
    BScrollFamily.prototype.purge = function () {
        var _this = this;
        // remove self from graph
        this.ancestors.forEach(function (_a) {
            var bscrollFamily = _a[0];
            bscrollFamily.removeDescendant(_this);
        });
        this.descendants.forEach(function (_a) {
            var bscrollFamily = _a[0];
            bscrollFamily.removeAncestor(_this);
        });
        // remove all hook handlers
        this.hooksManager.forEach(function (_a) {
            var hooks = _a[0], eventType = _a[1], handler = _a[2];
            hooks.off(eventType, handler);
        });
        this.hooksManager = [];
    };
    return BScrollFamily;
}());

var sourcePrefix$1 = 'plugins.nestedScroll';
var propertiesMap$1 = [
    {
        key: 'purgeNestedScroll',
        name: 'purgeNestedScroll',
    },
];
var propertiesConfig$1 = propertiesMap$1.map(function (item) {
    return {
        key: item.key,
        sourceKey: sourcePrefix$1 + "." + item.name,
    };
});

var DEFAUL_GROUP_ID = 'INTERNAL_NESTED_SCROLL';
var forceScrollStopHandler = function (scrolls) {
    scrolls.forEach(function (scroll) {
        if (scroll.pending) {
            scroll.stop();
            scroll.resetPosition();
        }
    });
};
var enableScrollHander = function (scrolls) {
    scrolls.forEach(function (scroll) {
        scroll.enable();
    });
};
var disableScrollHander = function (scrolls, currentScroll) {
    scrolls.forEach(function (scroll) {
        if (scroll.hasHorizontalScroll === currentScroll.hasHorizontalScroll ||
            scroll.hasVerticalScroll === currentScroll.hasVerticalScroll) {
            scroll.disable();
        }
    });
};
var syncTouchstartData = function (scrolls) {
    scrolls.forEach(function (scroll) {
        var _a = scroll.scroller, actions = _a.actions, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY;
        // prevent click triggering many times
        actions.fingerMoved = true;
        actions.contentMoved = false;
        actions.directionLockAction.reset();
        scrollBehaviorX.start();
        scrollBehaviorY.start();
        scrollBehaviorX.resetStartPos();
        scrollBehaviorY.resetStartPos();
        actions.startTime = +new Date();
    });
};
var isOutOfBoundary = function (scroll) {
    var hasHorizontalScroll = scroll.hasHorizontalScroll, hasVerticalScroll = scroll.hasVerticalScroll, x = scroll.x, y = scroll.y, minScrollX = scroll.minScrollX, maxScrollX = scroll.maxScrollX, minScrollY = scroll.minScrollY, maxScrollY = scroll.maxScrollY, movingDirectionX = scroll.movingDirectionX, movingDirectionY = scroll.movingDirectionY;
    var ret = false;
    var outOfLeftBoundary = x >= minScrollX && movingDirectionX === -1 /* Negative */;
    var outOfRightBoundary = x <= maxScrollX && movingDirectionX === 1 /* Positive */;
    var outOfTopBoundary = y >= minScrollY && movingDirectionY === -1 /* Negative */;
    var outOfBottomBoundary = y <= maxScrollY && movingDirectionY === 1 /* Positive */;
    if (hasVerticalScroll) {
        ret = outOfTopBoundary || outOfBottomBoundary;
    }
    else if (hasHorizontalScroll) {
        ret = outOfLeftBoundary || outOfRightBoundary;
    }
    return ret;
};
var isResettingPosition = function (scroll) {
    var hasHorizontalScroll = scroll.hasHorizontalScroll, hasVerticalScroll = scroll.hasVerticalScroll, x = scroll.x, y = scroll.y, minScrollX = scroll.minScrollX, maxScrollX = scroll.maxScrollX, minScrollY = scroll.minScrollY, maxScrollY = scroll.maxScrollY;
    var ret = false;
    var outOfLeftBoundary = x > minScrollX;
    var outOfRightBoundary = x < maxScrollX;
    var outOfTopBoundary = y > minScrollY;
    var outOfBottomBoundary = y < maxScrollY;
    if (hasVerticalScroll) {
        ret = outOfTopBoundary || outOfBottomBoundary;
    }
    else if (hasHorizontalScroll) {
        ret = outOfLeftBoundary || outOfRightBoundary;
    }
    return ret;
};
var resetPositionHandler = function (scroll) {
    scroll.scroller.reflow();
    scroll.resetPosition(0 /* Immediately */);
};
var calculateDistance = function (childNode, parentNode) {
    var distance = 0;
    var parent = childNode.parentNode;
    while (parent && parent !== parentNode) {
        distance++;
        parent = parent.parentNode;
    }
    return distance;
};
var NestedScroll = /** @class */ (function () {
    function NestedScroll(scroll) {
        var groupId = this.handleOptions(scroll);
        var instance = NestedScroll.instancesMap[groupId];
        if (!instance) {
            instance = NestedScroll.instancesMap[groupId] = this;
            instance.store = [];
            instance.hooksFn = [];
        }
        instance.init(scroll);
        return instance;
    }
    NestedScroll.getAllNestedScrolls = function () {
        var instancesMap = NestedScroll.instancesMap;
        return Object.keys(instancesMap).map(function (key) { return instancesMap[key]; });
    };
    NestedScroll.purgeAllNestedScrolls = function () {
        var nestedScrolls = NestedScroll.getAllNestedScrolls();
        nestedScrolls.forEach(function (ns) { return ns.purgeNestedScroll(); });
    };
    NestedScroll.prototype.handleOptions = function (scroll) {
        var userOptions = (scroll.options.nestedScroll === true
            ? {}
            : scroll.options.nestedScroll);
        var defaultOptions = {
            groupId: DEFAUL_GROUP_ID,
        };
        this.options = extend(defaultOptions, userOptions);
        var groupIdType = typeof this.options.groupId;
        if (groupIdType !== 'string' && groupIdType !== 'number') {
            warn('groupId must be string or number for NestedScroll plugin');
        }
        return this.options.groupId;
    };
    NestedScroll.prototype.init = function (scroll) {
        scroll.proxy(propertiesConfig$1);
        this.addBScroll(scroll);
        this.buildBScrollGraph();
        this.analyzeBScrollGraph();
        this.ensureEventInvokeSequence();
        this.handleHooks(scroll);
    };
    NestedScroll.prototype.handleHooks = function (scroll) {
        var _this = this;
        this.registerHooks(scroll.hooks, scroll.hooks.eventTypes.destroy, function () {
            _this.deleteScroll(scroll);
        });
    };
    NestedScroll.prototype.deleteScroll = function (scroll) {
        var wrapper = scroll.wrapper;
        wrapper.isBScrollContainer = undefined;
        var store = this.store;
        var hooksFn = this.hooksFn;
        var i = findIndex(store, function (bscrollFamily) {
            return bscrollFamily.selfScroll === scroll;
        });
        if (i > -1) {
            var bscrollFamily = store[i];
            bscrollFamily.purge();
            store.splice(i, 1);
        }
        var k = findIndex(hooksFn, function (_a) {
            var hooks = _a[0];
            return hooks === scroll.hooks;
        });
        if (k > -1) {
            var _a = hooksFn[k], hooks = _a[0], eventType = _a[1], handler = _a[2];
            hooks.off(eventType, handler);
            hooksFn.splice(k, 1);
        }
    };
    NestedScroll.prototype.addBScroll = function (scroll) {
        this.store.push(BScrollFamily.create(scroll));
    };
    NestedScroll.prototype.buildBScrollGraph = function () {
        var store = this.store;
        var bf1;
        var bf2;
        var wrapper1;
        var wrapper2;
        var len = this.store.length;
        // build graph
        for (var i = 0; i < len; i++) {
            bf1 = store[i];
            wrapper1 = bf1.selfScroll.wrapper;
            for (var j = 0; j < len; j++) {
                bf2 = store[j];
                wrapper2 = bf2.selfScroll.wrapper;
                // same bs
                if (bf1 === bf2)
                    continue;
                if (!wrapper1.contains(wrapper2))
                    continue;
                // bs1 contains bs2
                var distance = calculateDistance(wrapper2, wrapper1);
                if (!bf1.hasDescendants(bf2)) {
                    bf1.addDescendant(bf2, distance);
                }
                if (!bf2.hasAncestors(bf1)) {
                    bf2.addAncestor(bf1, distance);
                }
            }
        }
    };
    NestedScroll.prototype.analyzeBScrollGraph = function () {
        this.store.forEach(function (bscrollFamily) {
            if (bscrollFamily.analyzed) {
                return;
            }
            var ancestors = bscrollFamily.ancestors, descendants = bscrollFamily.descendants, currentScroll = bscrollFamily.selfScroll;
            var beforeScrollStartHandler = function () {
                // always get the latest scroll
                var ancestorScrolls = ancestors.map(function (_a) {
                    var bscrollFamily = _a[0];
                    return bscrollFamily.selfScroll;
                });
                var descendantScrolls = descendants.map(function (_a) {
                    var bscrollFamily = _a[0];
                    return bscrollFamily.selfScroll;
                });
                forceScrollStopHandler(__spreadArrays(ancestorScrolls, descendantScrolls));
                if (isResettingPosition(currentScroll)) {
                    resetPositionHandler(currentScroll);
                }
                syncTouchstartData(ancestorScrolls);
                disableScrollHander(ancestorScrolls, currentScroll);
            };
            var touchEndHandler = function () {
                var ancestorScrolls = ancestors.map(function (_a) {
                    var bscrollFamily = _a[0];
                    return bscrollFamily.selfScroll;
                });
                var descendantScrolls = descendants.map(function (_a) {
                    var bscrollFamily = _a[0];
                    return bscrollFamily.selfScroll;
                });
                enableScrollHander(__spreadArrays(ancestorScrolls, descendantScrolls));
            };
            bscrollFamily.registerHooks(currentScroll, currentScroll.eventTypes.beforeScrollStart, beforeScrollStartHandler);
            bscrollFamily.registerHooks(currentScroll, currentScroll.eventTypes.touchEnd, touchEndHandler);
            var selfActionsHooks = currentScroll.scroller.actions.hooks;
            bscrollFamily.registerHooks(selfActionsHooks, selfActionsHooks.eventTypes.detectMovingDirection, function () {
                var ancestorScrolls = ancestors.map(function (_a) {
                    var bscrollFamily = _a[0];
                    return bscrollFamily.selfScroll;
                });
                var parentScroll = ancestorScrolls[0];
                var otherAncestorScrolls = ancestorScrolls.slice(1);
                var contentMoved = currentScroll.scroller.actions.contentMoved;
                var isTopScroll = ancestorScrolls.length === 0;
                if (contentMoved) {
                    disableScrollHander(ancestorScrolls, currentScroll);
                }
                else if (!isTopScroll) {
                    if (isOutOfBoundary(currentScroll)) {
                        disableScrollHander([currentScroll], currentScroll);
                        if (parentScroll) {
                            enableScrollHander([parentScroll]);
                        }
                        disableScrollHander(otherAncestorScrolls, currentScroll);
                        return true;
                    }
                }
            });
            bscrollFamily.setAnalyzed(true);
        });
    };
    // make sure touchmove|touchend invoke from child to parent
    NestedScroll.prototype.ensureEventInvokeSequence = function () {
        var copied = this.store.slice();
        var sequencedScroll = copied.sort(function (a, b) {
            return a.descendants.length - b.descendants.length;
        });
        sequencedScroll.forEach(function (bscrollFamily) {
            var scroll = bscrollFamily.selfScroll;
            scroll.scroller.actionsHandler.rebindDOMEvents();
        });
    };
    NestedScroll.prototype.registerHooks = function (hooks, name, handler) {
        hooks.on(name, handler, this);
        this.hooksFn.push([hooks, name, handler]);
    };
    NestedScroll.prototype.purgeNestedScroll = function () {
        var groupId = this.options.groupId;
        this.store.forEach(function (bscrollFamily) {
            bscrollFamily.purge();
        });
        this.store = [];
        this.hooksFn.forEach(function (_a) {
            var hooks = _a[0], eventType = _a[1], handler = _a[2];
            hooks.off(eventType, handler);
        });
        this.hooksFn = [];
        delete NestedScroll.instancesMap[groupId];
    };
    NestedScroll.pluginName = 'nestedScroll';
    NestedScroll.instancesMap = {};
    return NestedScroll;
}());

var PRE_NUM = 10;
var POST_NUM = 30;
var IndexCalculator = /** @class */ (function () {
    function IndexCalculator(wrapperHeight, tombstoneHeight) {
        this.wrapperHeight = wrapperHeight;
        this.tombstoneHeight = tombstoneHeight;
        this.lastDirection = 1 /* DOWN */;
        this.lastPos = 0;
    }
    IndexCalculator.prototype.calculate = function (pos, list) {
        var offset = pos - this.lastPos;
        this.lastPos = pos;
        var direction = this.getDirection(offset);
        // important! start index is much more important than end index.
        var start = this.calculateIndex(0, pos, list);
        var end = this.calculateIndex(start, pos + this.wrapperHeight, list);
        if (direction === 1 /* DOWN */) {
            start -= PRE_NUM;
            end += POST_NUM;
        }
        else {
            start -= POST_NUM;
            end += PRE_NUM;
        }
        if (start < 0) {
            start = 0;
        }
        return {
            start: start,
            end: end,
        };
    };
    IndexCalculator.prototype.getDirection = function (offset) {
        var direction;
        if (offset > 0) {
            direction = 1 /* DOWN */;
        }
        else if (offset < 0) {
            direction = 0 /* UP */;
        }
        else {
            return this.lastDirection;
        }
        this.lastDirection = direction;
        return direction;
    };
    IndexCalculator.prototype.calculateIndex = function (start, offset, list) {
        if (offset <= 0) {
            return start;
        }
        var i = start;
        var startPos = list[i] && list[i].pos !== -1 ? list[i].pos : 0;
        var lastPos = startPos;
        var tombstone = 0;
        while (i < list.length && list[i].pos < offset) {
            lastPos = list[i].pos;
            i++;
        }
        if (i === list.length) {
            tombstone = Math.floor((offset - lastPos) / this.tombstoneHeight);
        }
        i += tombstone;
        return i;
    };
    IndexCalculator.prototype.resetState = function () {
        this.lastDirection = 1 /* DOWN */;
        this.lastPos = 0;
    };
    return IndexCalculator;
}());

var ListItem = /** @class */ (function () {
    function ListItem() {
        this.data = null;
        this.dom = null;
        this.tombstone = null;
        this.width = 0;
        this.height = 0;
        this.pos = 0;
    }
    return ListItem;
}());
var DataManager = /** @class */ (function () {
    function DataManager(list, fetchFn, onFetchFinish) {
        this.fetchFn = fetchFn;
        this.onFetchFinish = onFetchFinish;
        this.loadedNum = 0;
        this.fetching = false;
        this.hasMore = true;
        this.list = list || [];
    }
    DataManager.prototype.update = function (end) {
        return __awaiter(this, void 0, void 0, function () {
            var len;
            return __generator(this, function (_a) {
                if (!this.hasMore) {
                    end = Math.min(end, this.list.length);
                }
                // add data placeholder
                if (end > this.list.length) {
                    len = end - this.list.length;
                    this.addEmptyData(len);
                }
                // tslint:disable-next-line: no-floating-promises
                return [2 /*return*/, this.checkToFetch(end)];
            });
        });
    };
    DataManager.prototype.add = function (data) {
        for (var i = 0; i < data.length; i++) {
            if (!this.list[this.loadedNum]) {
                this.list[this.loadedNum] = { data: data[i] };
            }
            else {
                this.list[this.loadedNum] = __assign(__assign({}, this.list[this.loadedNum]), { data: data[i] });
            }
            this.loadedNum++;
        }
        return this.list;
    };
    DataManager.prototype.addEmptyData = function (len) {
        for (var i = 0; i < len; i++) {
            this.list.push(new ListItem());
        }
        return this.list;
    };
    DataManager.prototype.fetch = function (len) {
        return __awaiter(this, void 0, void 0, function () {
            var data;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (this.fetching) {
                            return [2 /*return*/, []];
                        }
                        this.fetching = true;
                        return [4 /*yield*/, this.fetchFn(len)];
                    case 1:
                        data = _a.sent();
                        this.fetching = false;
                        return [2 /*return*/, data];
                }
            });
        });
    };
    DataManager.prototype.checkToFetch = function (end) {
        return __awaiter(this, void 0, void 0, function () {
            var min, newData, currentEnd;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (!this.hasMore) {
                            return [2 /*return*/];
                        }
                        if (end <= this.loadedNum) {
                            return [2 /*return*/];
                        }
                        min = end - this.loadedNum;
                        return [4 /*yield*/, this.fetch(min)];
                    case 1:
                        newData = _a.sent();
                        if (newData instanceof Array && newData.length) {
                            this.add(newData);
                            currentEnd = this.onFetchFinish(this.list, true);
                            return [2 /*return*/, this.checkToFetch(currentEnd)];
                        }
                        else if (typeof newData === 'boolean' && newData === false) {
                            this.hasMore = false;
                            this.list.splice(this.loadedNum);
                            this.onFetchFinish(this.list, false);
                        }
                        return [2 /*return*/];
                }
            });
        });
    };
    DataManager.prototype.getList = function () {
        return this.list;
    };
    DataManager.prototype.resetState = function () {
        this.loadedNum = 0;
        this.fetching = false;
        this.hasMore = true;
        this.list = [];
    };
    return DataManager;
}());

var Tombstone = /** @class */ (function () {
    function Tombstone(create) {
        this.create = create;
        this.cached = [];
        this.width = 0;
        this.height = 0;
        this.initialed = false;
        this.getSize();
    }
    Tombstone.isTombstone = function (el) {
        if (el && el.classList) {
            return el.classList.contains('tombstone');
        }
        return false;
    };
    Tombstone.prototype.getSize = function () {
        if (!this.initialed) {
            var tombstone = this.create();
            tombstone.style.position = 'absolute';
            document.body.appendChild(tombstone);
            tombstone.style.display = '';
            this.height = tombstone.offsetHeight;
            this.width = tombstone.offsetWidth;
            document.body.removeChild(tombstone);
            this.cached.push(tombstone);
        }
    };
    Tombstone.prototype.getOne = function () {
        var tombstone = this.cached.pop();
        if (tombstone) {
            var tombstoneStyle = tombstone.style;
            tombstoneStyle.display = '';
            tombstoneStyle.opacity = '1';
            tombstoneStyle[style.transform] = '';
            tombstoneStyle[style.transition] = '';
            return tombstone;
        }
        return this.create();
    };
    Tombstone.prototype.recycle = function (tombstones) {
        for (var _i = 0, tombstones_1 = tombstones; _i < tombstones_1.length; _i++) {
            var tombstone = tombstones_1[_i];
            tombstone.style.display = 'none';
            this.cached.push(tombstone);
        }
        return this.cached;
    };
    Tombstone.prototype.recycleOne = function (tombstone) {
        this.cached.push(tombstone);
        return this.cached;
    };
    return Tombstone;
}());

var ANIMATION_DURATION_MS = 200;
var DomManager = /** @class */ (function () {
    function DomManager(content, renderFn, tombstone) {
        this.renderFn = renderFn;
        this.tombstone = tombstone;
        this.unusedDom = [];
        this.timers = [];
        this.setContent(content);
    }
    DomManager.prototype.update = function (list, start, end) {
        if (start >= list.length) {
            start = list.length - 1;
        }
        if (end > list.length) {
            end = list.length;
        }
        this.collectUnusedDom(list, start, end);
        this.createDom(list, start, end);
        this.cacheHeight(list, start, end);
        var _a = this.positionDom(list, start, end), startPos = _a.startPos, startDelta = _a.startDelta, endPos = _a.endPos;
        return {
            start: start,
            startPos: startPos,
            startDelta: startDelta,
            end: end,
            endPos: endPos,
        };
    };
    DomManager.prototype.collectUnusedDom = function (list, start, end) {
        // TODO optimise
        for (var i = 0; i < list.length; i++) {
            if (i === start) {
                i = end - 1;
                continue;
            }
            if (list[i].dom) {
                var dom = list[i].dom;
                if (Tombstone.isTombstone(dom)) {
                    this.tombstone.recycleOne(dom);
                    dom.style.display = 'none';
                }
                else {
                    this.unusedDom.push(dom);
                }
                list[i].dom = null;
            }
        }
        return list;
    };
    DomManager.prototype.createDom = function (list, start, end) {
        for (var i = start; i < end; i++) {
            var dom = list[i].dom;
            var data = list[i].data;
            if (dom) {
                if (Tombstone.isTombstone(dom) && data) {
                    list[i].tombstone = dom;
                    list[i].dom = null;
                }
                else {
                    continue;
                }
            }
            dom = data
                ? this.renderFn(data, this.unusedDom.pop())
                : this.tombstone.getOne();
            dom.style.position = 'absolute';
            list[i].dom = dom;
            list[i].pos = -1;
            this.content.appendChild(dom);
        }
    };
    DomManager.prototype.cacheHeight = function (list, start, end) {
        for (var i = start; i < end; i++) {
            if (list[i].data && !list[i].height) {
                list[i].height = list[i].dom.offsetHeight;
            }
        }
    };
    DomManager.prototype.positionDom = function (list, start, end) {
        var _this = this;
        var tombstoneEles = [];
        var _a = this.getStartPos(list, start, end), startPos = _a.start, startDelta = _a.delta;
        var pos = startPos;
        for (var i = start; i < end; i++) {
            var tombstone = list[i].tombstone;
            if (tombstone) {
                var tombstoneStyle = tombstone.style;
                tombstoneStyle[style.transition] = cssVendor + "transform " + ANIMATION_DURATION_MS + "ms, opacity " + ANIMATION_DURATION_MS + "ms";
                tombstoneStyle[style.transform] = "translateY(" + pos + "px)";
                tombstoneStyle.opacity = '0';
                list[i].tombstone = null;
                tombstoneEles.push(tombstone);
            }
            if (list[i].dom && list[i].pos !== pos) {
                list[i].dom.style[style.transform] = "translateY(" + pos + "px)";
                list[i].pos = pos;
            }
            pos += list[i].height || this.tombstone.height;
        }
        var timerId = window.setTimeout(function () {
            _this.tombstone.recycle(tombstoneEles);
        }, ANIMATION_DURATION_MS);
        this.timers.push(timerId);
        return {
            startPos: startPos,
            startDelta: startDelta,
            endPos: pos,
        };
    };
    DomManager.prototype.getStartPos = function (list, start, end) {
        if (list[start] && list[start].pos !== -1) {
            return {
                start: list[start].pos,
                delta: 0,
            };
        }
        // TODO optimise
        var pos = list[0].pos === -1 ? 0 : list[0].pos;
        for (var i_1 = 0; i_1 < start; i_1++) {
            pos += list[i_1].height || this.tombstone.height;
        }
        var originPos = pos;
        var i;
        for (i = start; i < end; i++) {
            if (!Tombstone.isTombstone(list[i].dom) && list[i].pos !== -1) {
                pos = list[i].pos;
                break;
            }
        }
        var x = i;
        if (x < end) {
            while (x > start) {
                pos -= list[x - 1].height;
                x--;
            }
        }
        var delta = originPos - pos;
        return {
            start: pos,
            delta: delta,
        };
    };
    DomManager.prototype.removeTombstone = function () {
        var tombstones = this.content.querySelectorAll('.tombstone');
        for (var i = tombstones.length - 1; i >= 0; i--) {
            this.content.removeChild(tombstones[i]);
        }
    };
    DomManager.prototype.setContent = function (content) {
        if (content !== this.content) {
            this.content = content;
        }
    };
    DomManager.prototype.destroy = function () {
        this.removeTombstone();
        this.timers.forEach(function (id) {
            clearTimeout(id);
        });
    };
    DomManager.prototype.resetState = function () {
        this.destroy();
        this.timers = [];
        this.unusedDom = [];
    };
    return DomManager;
}());

var EXTRA_SCROLL_Y = -2000;
var InfinityScroll = /** @class */ (function () {
    function InfinityScroll(scroll) {
        this.scroll = scroll;
        this.start = 0;
        this.end = 0;
        this.init();
    }
    InfinityScroll.prototype.init = function () {
        var _this = this;
        this.handleOptions();
        var _a = this.options, fetchFn = _a.fetch, renderFn = _a.render, createTombstoneFn = _a.createTombstone;
        this.tombstone = new Tombstone(createTombstoneFn);
        this.indexCalculator = new IndexCalculator(this.scroll.scroller.scrollBehaviorY.wrapperSize, this.tombstone.height);
        this.domManager = new DomManager(this.scroll.scroller.content, renderFn, this.tombstone);
        this.dataManager = new DataManager([], fetchFn, this.onFetchFinish.bind(this));
        this.scroll.on(this.scroll.eventTypes.destroy, this.destroy, this);
        this.scroll.on(this.scroll.eventTypes.scroll, this.update, this);
        this.scroll.on(this.scroll.eventTypes.contentChanged, function (content) {
            _this.domManager.setContent(content);
            _this.indexCalculator.resetState();
            _this.domManager.resetState();
            _this.dataManager.resetState();
            _this.update({ y: 0 });
        });
        var scrollBehaviorY = this.scroll.scroller.scrollBehaviorY;
        scrollBehaviorY.hooks.on(scrollBehaviorY.hooks.eventTypes.computeBoundary, this.modifyBoundary, this);
        this.update({ y: 0 });
    };
    InfinityScroll.prototype.modifyBoundary = function (boundary) {
        // manually set position to allow scroll
        boundary.maxScrollPos = EXTRA_SCROLL_Y;
    };
    InfinityScroll.prototype.handleOptions = function () {
        // narrow down type to an object
        var infinityOptions = this.scroll.options.infinity;
        if (infinityOptions) {
            if (typeof infinityOptions.fetch !== 'function') {
                warn('Infinity plugin need fetch Function to new data.');
            }
            if (typeof infinityOptions.render !== 'function') {
                warn('Infinity plugin need render Function to render each item.');
            }
            if (typeof infinityOptions.render !== 'function') {
                warn('Infinity plugin need createTombstone Function to create tombstone.');
            }
            this.options = infinityOptions;
        }
        this.scroll.options.probeType = 3 /* Realtime */;
    };
    InfinityScroll.prototype.update = function (pos) {
        var position = Math.round(-pos.y);
        // important! calculate start/end index to render
        var _a = this.indexCalculator.calculate(position, this.dataManager.getList()), start = _a.start, end = _a.end;
        this.start = start;
        this.end = end;
        // tslint:disable-next-line: no-floating-promises
        this.dataManager.update(end);
        this.updateDom(this.dataManager.getList());
    };
    InfinityScroll.prototype.onFetchFinish = function (list, hasMore) {
        var end = this.updateDom(list).end;
        if (!hasMore) {
            this.domManager.removeTombstone();
            this.scroll.scroller.animater.stop();
            this.scroll.resetPosition();
        }
        // tslint:disable-next-line: no-floating-promises
        return end;
    };
    InfinityScroll.prototype.updateDom = function (list) {
        var _a = this.domManager.update(list, this.start, this.end), end = _a.end, startPos = _a.startPos, endPos = _a.endPos, startDelta = _a.startDelta;
        if (startDelta) {
            this.scroll.minScrollY = startDelta;
        }
        if (endPos > this.scroll.maxScrollY) {
            this.scroll.maxScrollY = -(endPos - this.scroll.scroller.scrollBehaviorY.wrapperSize);
        }
        return {
            end: end,
            startPos: startPos,
            endPos: endPos,
        };
    };
    InfinityScroll.prototype.destroy = function () {
        var _a = this.scroll.scroller, content = _a.content, scrollBehaviorY = _a.scrollBehaviorY;
        while (content.firstChild) {
            content.removeChild(content.firstChild);
        }
        this.domManager.destroy();
        this.scroll.off('scroll', this.update);
        this.scroll.off('destroy', this.destroy);
        scrollBehaviorY.hooks.off(scrollBehaviorY.hooks.eventTypes.computeBoundary);
    };
    InfinityScroll.pluginName = 'infinity';
    return InfinityScroll;
}());

var sourcePrefix = 'plugins.movable';
var propertiesMap = [
    {
        key: 'putAt',
        name: 'putAt',
    },
];
var propertiesConfig = propertiesMap.map(function (item) {
    return {
        key: item.key,
        sourceKey: sourcePrefix + "." + item.name,
    };
});

var Movable = /** @class */ (function () {
    function Movable(scroll) {
        this.scroll = scroll;
        this.handleBScroll();
        this.handleHooks();
    }
    Movable.prototype.handleBScroll = function () {
        this.scroll.proxy(propertiesConfig);
    };
    Movable.prototype.handleHooks = function () {
        var _this = this;
        this.hooksFn = [];
        var _a = this.scroll.scroller, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY;
        var computeBoundary = function (boundary, behavior) {
            if (boundary.maxScrollPos > 0) {
                // content is smaller than wrapper
                boundary.minScrollPos = behavior.wrapperSize - behavior.contentSize;
                boundary.maxScrollPos = 0;
            }
        };
        this.registerHooks(scrollBehaviorX.hooks, scrollBehaviorX.hooks.eventTypes.ignoreHasScroll, function () { return true; });
        this.registerHooks(scrollBehaviorX.hooks, scrollBehaviorX.hooks.eventTypes.computeBoundary, function (boundary) {
            computeBoundary(boundary, scrollBehaviorX);
        });
        this.registerHooks(scrollBehaviorY.hooks, scrollBehaviorY.hooks.eventTypes.ignoreHasScroll, function () { return true; });
        this.registerHooks(scrollBehaviorY.hooks, scrollBehaviorY.hooks.eventTypes.computeBoundary, function (boundary) {
            computeBoundary(boundary, scrollBehaviorY);
        });
        this.registerHooks(this.scroll.hooks, this.scroll.hooks.eventTypes.destroy, function () {
            _this.destroy();
        });
    };
    Movable.prototype.putAt = function (x, y, time, easing) {
        if (time === void 0) { time = this.scroll.options.bounceTime; }
        if (easing === void 0) { easing = ease.bounce; }
        var position = this.resolvePostion(x, y);
        this.scroll.scrollTo(position.x, position.y, time, easing);
    };
    Movable.prototype.resolvePostion = function (x, y) {
        var _a = this.scroll.scroller, scrollBehaviorX = _a.scrollBehaviorX, scrollBehaviorY = _a.scrollBehaviorY;
        var resolveFormula = {
            left: function () {
                return 0;
            },
            top: function () {
                return 0;
            },
            right: function () {
                return scrollBehaviorX.minScrollPos;
            },
            bottom: function () {
                return scrollBehaviorY.minScrollPos;
            },
            center: function (index) {
                var baseSize = index === 0
                    ? scrollBehaviorX.minScrollPos
                    : scrollBehaviorY.minScrollPos;
                return baseSize / 2;
            },
        };
        return {
            x: typeof x === 'number' ? x : resolveFormula[x](0),
            y: typeof y === 'number' ? y : resolveFormula[y](1),
        };
    };
    Movable.prototype.destroy = function () {
        this.hooksFn.forEach(function (item) {
            var hooks = item[0];
            var hooksName = item[1];
            var handlerFn = item[2];
            hooks.off(hooksName, handlerFn);
        });
        this.hooksFn.length = 0;
    };
    Movable.prototype.registerHooks = function (hooks, name, handler) {
        hooks.on(name, handler, this);
        this.hooksFn.push([hooks, name, handler]);
    };
    Movable.pluginName = 'movable';
    Movable.applyOrder = "pre" /* Pre */;
    return Movable;
}());

var isImageTag = function (el) {
    return el.tagName.toLowerCase() === 'img';
};
var ObserveImage = /** @class */ (function () {
    function ObserveImage(scroll) {
        this.scroll = scroll;
        this.refreshTimer = 0;
        this.init();
    }
    ObserveImage.prototype.init = function () {
        this.handleOptions(this.scroll.options.observeImage);
        this.bindEventsToWrapper();
    };
    ObserveImage.prototype.handleOptions = function (userOptions) {
        if (userOptions === void 0) { userOptions = {}; }
        userOptions = (userOptions === true ? {} : userOptions);
        var defaultOptions = {
            debounceTime: 100,
        };
        this.options = extend(defaultOptions, userOptions);
    };
    ObserveImage.prototype.bindEventsToWrapper = function () {
        var wrapper = this.scroll.scroller.wrapper;
        this.imageLoadEventRegister = new EventRegister(wrapper, [
            {
                name: 'load',
                handler: this.load.bind(this),
                capture: true,
            },
        ]);
        this.imageErrorEventRegister = new EventRegister(wrapper, [
            {
                name: 'error',
                handler: this.load.bind(this),
                capture: true,
            },
        ]);
    };
    ObserveImage.prototype.load = function (e) {
        var _this = this;
        var target = e.target;
        var debounceTime = this.options.debounceTime;
        if (target && isImageTag(target)) {
            if (debounceTime === 0) {
                this.scroll.refresh();
            }
            else {
                clearTimeout(this.refreshTimer);
                this.refreshTimer = window.setTimeout(function () {
                    _this.scroll.refresh();
                }, this.options.debounceTime);
            }
        }
    };
    ObserveImage.pluginName = 'observeImage';
    return ObserveImage;
}());

var resolveRatioOption = function (ratioConfig) {
    var ret = {
        ratioX: 0,
        ratioY: 0,
    };
    /* istanbul ignore if  */
    if (!ratioConfig) {
        return ret;
    }
    if (typeof ratioConfig === 'number') {
        ret.ratioX = ret.ratioY = ratioConfig;
    }
    else if (typeof ratioConfig === 'object' && ratioConfig) {
        ret.ratioX = ratioConfig.x || 0;
        ret.ratioY = ratioConfig.y || 0;
    }
    return ret;
};
var handleBubbleAndCancelable = function (e) {
    e.preventDefault();
    e.stopPropagation();
};
var Indicator = /** @class */ (function () {
    function Indicator(scroll, options) {
        this.scroll = scroll;
        this.options = options;
        this.currentPos = {
            x: 0,
            y: 0,
        };
        this.hooksFn = [];
        this.handleDOM();
        this.handleHooks();
        this.handleInteractive();
    }
    Indicator.prototype.handleDOM = function () {
        var _a = this.options, relationElement = _a.relationElement, _b = _a.relationElementHandleElementIndex, relationElementHandleElementIndex = _b === void 0 ? 0 : _b;
        this.wrapper = relationElement;
        this.indicatorEl = this.wrapper.children[relationElementHandleElementIndex];
    };
    Indicator.prototype.handleHooks = function () {
        var _this = this;
        var scroll = this.scroll;
        var scrollHooks = scroll.hooks;
        var translaterHooks = scroll.scroller.translater.hooks;
        var animaterHooks = scroll.scroller.animater.hooks;
        this.registerHooks(scrollHooks, scrollHooks.eventTypes.refresh, this.refresh);
        this.registerHooks(translaterHooks, translaterHooks.eventTypes.translate, function (pos) {
            _this.updatePosition(pos);
        });
        this.registerHooks(animaterHooks, animaterHooks.eventTypes.time, this.transitionTime);
        this.registerHooks(animaterHooks, animaterHooks.eventTypes.timeFunction, this.transitionTimingFunction);
    };
    Indicator.prototype.transitionTime = function (time) {
        if (time === void 0) { time = 0; }
        this.indicatorEl.style[style.transitionDuration] = time + 'ms';
    };
    Indicator.prototype.transitionTimingFunction = function (easing) {
        this.indicatorEl.style[style.transitionTimingFunction] = easing;
    };
    Indicator.prototype.handleInteractive = function () {
        if (this.options.interactive !== false) {
            this.registerEvents();
        }
    };
    Indicator.prototype.registerHooks = function (hooks, name, handler) {
        hooks.on(name, handler, this);
        this.hooksFn.push([hooks, name, handler]);
    };
    Indicator.prototype.registerEvents = function () {
        var _a = this.scroll.options, disableMouse = _a.disableMouse, disableTouch = _a.disableTouch;
        var startEvents = [];
        var moveEvents = [];
        var endEvents = [];
        if (!disableMouse) {
            startEvents.push({
                name: 'mousedown',
                handler: this.start.bind(this),
            });
            moveEvents.push({
                name: 'mousemove',
                handler: this.move.bind(this),
            });
            endEvents.push({
                name: 'mouseup',
                handler: this.end.bind(this),
            });
        }
        if (!disableTouch) {
            startEvents.push({
                name: 'touchstart',
                handler: this.start.bind(this),
            });
            moveEvents.push({
                name: 'touchmove',
                handler: this.move.bind(this),
            });
            endEvents.push({
                name: 'touchend',
                handler: this.end.bind(this),
            }, {
                name: 'touchcancel',
                handler: this.end.bind(this),
            });
        }
        this.startEventRegister = new EventRegister(this.indicatorEl, startEvents);
        this.moveEventRegister = new EventRegister(window, moveEvents);
        this.endEventRegister = new EventRegister(window, endEvents);
    };
    Indicator.prototype.refresh = function () {
        var _a = this.scroll, x = _a.x, y = _a.y, hasHorizontalScroll = _a.hasHorizontalScroll, hasVerticalScroll = _a.hasVerticalScroll, maxBScrollX = _a.maxScrollX, maxBScrollY = _a.maxScrollY;
        var _b = resolveRatioOption(this.options.ratio), ratioX = _b.ratioX, ratioY = _b.ratioY;
        var _c = getClientSize(this.wrapper), wrapperWidth = _c.width, wrapperHeight = _c.height;
        var _d = getRect(this.indicatorEl), indicatorWidth = _d.width, indicatorHeight = _d.height;
        if (hasHorizontalScroll) {
            this.maxScrollX = wrapperWidth - indicatorWidth;
            this.translateXSign =
                this.maxScrollX > 0 ? -1 /* Positive */ : 1 /* NotPositive */;
            this.minScrollX = 0;
            // ensure positive
            this.ratioX = ratioX ? ratioX : Math.abs(this.maxScrollX / maxBScrollX);
        }
        if (hasVerticalScroll) {
            this.maxScrollY = wrapperHeight - indicatorHeight;
            this.translateYSign =
                this.maxScrollY > 0 ? -1 /* Positive */ : 1 /* NotPositive */;
            this.minScrollY = 0;
            this.ratioY = ratioY ? ratioY : Math.abs(this.maxScrollY / maxBScrollY);
        }
        this.updatePosition({
            x: x,
            y: y,
        });
    };
    Indicator.prototype.start = function (e) {
        if (this.BScrollIsDisabled()) {
            return;
        }
        var point = (e.touches ? e.touches[0] : e);
        handleBubbleAndCancelable(e);
        this.initiated = true;
        this.moved = false;
        this.lastPointX = point.pageX;
        this.lastPointY = point.pageY;
        this.startTime = getNow();
        this.scroll.scroller.hooks.trigger(this.scroll.scroller.hooks.eventTypes.beforeScrollStart);
    };
    Indicator.prototype.BScrollIsDisabled = function () {
        return !this.scroll.enabled;
    };
    Indicator.prototype.move = function (e) {
        if (!this.initiated) {
            return;
        }
        var point = (e.touches ? e.touches[0] : e);
        var pointX = point.pageX;
        var pointY = point.pageY;
        handleBubbleAndCancelable(e);
        var deltaX = pointX - this.lastPointX;
        var deltaY = pointY - this.lastPointY;
        this.lastPointX = pointX;
        this.lastPointY = pointY;
        if (!this.moved && !this.indicatorNotMoved(deltaX, deltaY)) {
            this.moved = true;
            this.scroll.scroller.hooks.trigger(this.scroll.scroller.hooks.eventTypes.scrollStart);
        }
        if (this.moved) {
            var newPos = this.getBScrollPosByRatio(this.currentPos, deltaX, deltaY);
            this.syncBScroll(newPos);
        }
    };
    Indicator.prototype.end = function (e) {
        if (!this.initiated) {
            return;
        }
        this.initiated = false;
        handleBubbleAndCancelable(e);
        if (this.moved) {
            var _a = this.scroll, x = _a.x, y = _a.y;
            this.scroll.scroller.hooks.trigger(this.scroll.scroller.hooks.eventTypes.scrollEnd, {
                x: x,
                y: y,
            });
        }
    };
    Indicator.prototype.getBScrollPosByRatio = function (currentPos, deltaX, deltaY) {
        var currentX = currentPos.x, currentY = currentPos.y;
        var _a = this.scroll, hasHorizontalScroll = _a.hasHorizontalScroll, hasVerticalScroll = _a.hasVerticalScroll, BScrollMinScrollX = _a.minScrollX, BScrollMaxScrollX = _a.maxScrollX, BScrollMinScrollY = _a.minScrollY, BScrollMaxScrollY = _a.maxScrollY;
        var _b = this.scroll, x = _b.x, y = _b.y;
        if (hasHorizontalScroll) {
            var newPosX = between(currentX + deltaX, Math.min(this.minScrollX, this.maxScrollX), Math.max(this.minScrollX, this.maxScrollX));
            var roundX = Math.round((newPosX / this.ratioX) * this.translateXSign);
            x = between(roundX, BScrollMaxScrollX, BScrollMinScrollX);
        }
        if (hasVerticalScroll) {
            var newPosY = between(currentY + deltaY, Math.min(this.minScrollY, this.maxScrollY), Math.max(this.minScrollY, this.maxScrollY));
            var roundY = Math.round((newPosY / this.ratioY) * this.translateYSign);
            y = between(roundY, BScrollMaxScrollY, BScrollMinScrollY);
        }
        return { x: x, y: y };
    };
    Indicator.prototype.indicatorNotMoved = function (deltaX, deltaY) {
        var _a = this.currentPos, x = _a.x, y = _a.y;
        var xNotMoved = (x === this.minScrollX && deltaX <= 0) ||
            (x === this.maxScrollX && deltaX >= 0);
        var yNotMoved = (y === this.minScrollY && deltaY <= 0) ||
            (y === this.maxScrollY && deltaY >= 0);
        return xNotMoved && yNotMoved;
    };
    Indicator.prototype.syncBScroll = function (newPos) {
        var timestamp = getNow();
        var _a = this.scroll, options = _a.options, scroller = _a.scroller;
        var probeType = options.probeType, momentumLimitTime = options.momentumLimitTime;
        scroller.translater.translate(newPos);
        // dispatch scroll in interval time
        if (timestamp - this.startTime > momentumLimitTime) {
            this.startTime = timestamp;
            if (probeType === 1 /* Throttle */) {
                scroller.hooks.trigger(scroller.hooks.eventTypes.scroll, newPos);
            }
        }
        // dispatch scroll all the time
        if (probeType > 1 /* Throttle */) {
            scroller.hooks.trigger(scroller.hooks.eventTypes.scroll, newPos);
        }
    };
    Indicator.prototype.updatePosition = function (BScrollPos) {
        var newIndicatorPos = this.getIndicatorPosByRatio(BScrollPos);
        this.applyTransformProperty(newIndicatorPos);
        this.currentPos = __assign({}, newIndicatorPos);
    };
    Indicator.prototype.applyTransformProperty = function (pos) {
        var translateZ = this.scroll.options.translateZ;
        var transformProperties = [
            "translateX(" + pos.x + "px)",
            "translateY(" + pos.y + "px)",
            "" + translateZ,
        ];
        this.indicatorEl.style[style.transform] = transformProperties.join(' ');
    };
    Indicator.prototype.getIndicatorPosByRatio = function (BScrollPos) {
        var x = BScrollPos.x, y = BScrollPos.y;
        var _a = this.scroll, hasHorizontalScroll = _a.hasHorizontalScroll, hasVerticalScroll = _a.hasVerticalScroll;
        var position = __assign({}, this.currentPos);
        if (hasHorizontalScroll) {
            var roundX = Math.round(this.ratioX * x * this.translateXSign);
            // maybe maxScrollX is negative
            position.x = between(roundX, Math.min(this.minScrollX, this.maxScrollX), Math.max(this.minScrollX, this.maxScrollX));
        }
        if (hasVerticalScroll) {
            var roundY = Math.round(this.ratioY * y * this.translateYSign);
            // maybe maxScrollY is negative
            position.y = between(roundY, Math.min(this.minScrollY, this.maxScrollY), Math.max(this.minScrollY, this.maxScrollY));
        }
        return position;
    };
    Indicator.prototype.destroy = function () {
        if (this.options.interactive !== false) {
            this.startEventRegister.destroy();
            this.moveEventRegister.destroy();
            this.endEventRegister.destroy();
        }
        this.hooksFn.forEach(function (item) {
            var hooks = item[0];
            var hooksName = item[1];
            var handlerFn = item[2];
            hooks.off(hooksName, handlerFn);
        });
        this.hooksFn.length = 0;
    };
    return Indicator;
}());

var Indicators = /** @class */ (function () {
    function Indicators(scroll) {
        this.scroll = scroll;
        this.options = [];
        this.indicators = [];
        this.handleOptions();
        this.handleHooks();
    }
    Indicators.prototype.handleOptions = function () {
        var UserIndicatorsOptions = this.scroll.options.indicators;
        assert(Array.isArray(UserIndicatorsOptions), "'indicators' must be an array.");
        for (var _i = 0, UserIndicatorsOptions_1 = UserIndicatorsOptions; _i < UserIndicatorsOptions_1.length; _i++) {
            var indicatorOptions = UserIndicatorsOptions_1[_i];
            assert(!!indicatorOptions.relationElement, "'relationElement' must be a HTMLElement.");
            this.createIndicators(indicatorOptions);
        }
    };
    Indicators.prototype.createIndicators = function (options) {
        this.indicators.push(new Indicator(this.scroll, options));
    };
    Indicators.prototype.handleHooks = function () {
        var _this = this;
        var scrollHooks = this.scroll.hooks;
        scrollHooks.on(scrollHooks.eventTypes.destroy, function () {
            for (var _i = 0, _a = _this.indicators; _i < _a.length; _i++) {
                var indicator = _a[_i];
                indicator.destroy();
            }
            _this.indicators = [];
        });
    };
    Indicators.pluginName = 'indicators';
    return Indicators;
}());

BScroll.use(MouseWheel)
    .use(ObserveDOM)
    .use(PullDown)
    .use(PullUp)
    .use(ScrollBar)
    .use(Slide)
    .use(Wheel)
    .use(Zoom)
    .use(NestedScroll)
    .use(InfinityScroll)
    .use(Movable)
    .use(ObserveImage)
    .use(Indicators);

/* harmony default export */ var better_scroll_esm = (BScroll);


;// CONCATENATED MODULE: ./node_modules/@vue/vue-loader-v15/lib/loaders/templateLoader.js??vue-loader-options!./node_modules/@vue/vue-loader-v15/lib/index.js??vue-loader-options!./src/package/BBubble.vue?vue&type=template&id=65b7cffe&scoped=true&
var BBubblevue_type_template_id_65b7cffe_scoped_true_render = function () {var _vm=this;var _h=_vm.$createElement;var _c=_vm._self._c||_h;return _c('canvas',{ref:"bubble",style:(_vm.style),attrs:{"width":_vm.width,"height":_vm.height}})}
var BBubblevue_type_template_id_65b7cffe_scoped_true_staticRenderFns = []


// EXTERNAL MODULE: ./node_modules/core-js/modules/es.array.concat.js
var es_array_concat = __webpack_require__(2222);
// EXTERNAL MODULE: ./node_modules/core-js/modules/es.array.fill.js
var es_array_fill = __webpack_require__(3290);
;// CONCATENATED MODULE: ./node_modules/thread-loader/dist/cjs.js!./node_modules/babel-loader/lib/index.js??clonedRuleSet-40[0].rules[0].use[1]!./node_modules/@vue/vue-loader-v15/lib/index.js??vue-loader-options!./src/package/BBubble.vue?vue&type=script&lang=js&



//
//
//
//
/* harmony default export */ var BBubblevue_type_script_lang_js_ = ({
  name: 'b-bubble',
  props: {
    y: {
      type: Number,
      default: 0
    }
  },
  data: function data() {
    return {
      width: 50,
      height: 80
    };
  },
  computed: {
    distance: function distance() {
      return Math.max(0, Math.min(this.y * this.ratio, this.maxDistance));
    },
    style: function style() {
      return "width:".concat(this.width / this.ratio, "px;height:").concat(this.height / this.ratio, "px");
    }
  },
  created: function created() {
    this.ratio = window.devicePixelRatio;
    this.width *= this.ratio;
    this.height *= this.ratio;
    this.initRadius = 18 * this.ratio;
    this.minHeadRadius = 12 * this.ratio;
    this.minTailRadius = 5 * this.ratio;
    this.initArrowRadius = 10 * this.ratio;
    this.minArrowRadius = 6 * this.ratio;
    this.arrowWidth = 3 * this.ratio;
    this.maxDistance = 40 * this.ratio;
    this.initCenterX = 25 * this.ratio;
    this.initCenterY = 25 * this.ratio;
    this.headCenter = {
      x: this.initCenterX,
      y: this.initCenterY
    };
  },
  mounted: function mounted() {
    this._draw();
  },
  methods: {
    _draw: function _draw() {
      var bubble = this.$refs.bubble;
      var ctx = bubble.getContext('2d');
      ctx.clearRect(0, 0, bubble.width, bubble.height);

      this._drawBubble(ctx);

      this._drawArrow(ctx);
    },
    _drawBubble: function _drawBubble(ctx) {
      ctx.save();
      ctx.beginPath();
      var rate = this.distance / this.maxDistance;
      var headRadius = this.initRadius - (this.initRadius - this.minHeadRadius) * rate;
      this.headCenter.y = this.initCenterY - (this.initRadius - this.minHeadRadius) * rate; // 画上半弧线

      ctx.arc(this.headCenter.x, this.headCenter.y, headRadius, 0, Math.PI, true); // 画左侧贝塞尔

      var tailRadius = this.initRadius - (this.initRadius - this.minTailRadius) * rate;
      var tailCenter = {
        x: this.headCenter.x,
        y: this.headCenter.y + this.distance
      };
      var tailPointL = {
        x: tailCenter.x - tailRadius,
        y: tailCenter.y
      };
      var controlPointL = {
        x: tailPointL.x,
        y: tailPointL.y - this.distance / 2
      };
      ctx.quadraticCurveTo(controlPointL.x, controlPointL.y, tailPointL.x, tailPointL.y); // 画下半弧线

      ctx.arc(tailCenter.x, tailCenter.y, tailRadius, Math.PI, 0, true); // 画右侧贝塞尔

      var headPointR = {
        x: this.headCenter.x + headRadius,
        y: this.headCenter.y
      };
      var controlPointR = {
        x: tailCenter.x + tailRadius,
        y: headPointR.y + this.distance / 2
      };
      ctx.quadraticCurveTo(controlPointR.x, controlPointR.y, headPointR.x, headPointR.y);
      ctx.fillStyle = 'rgb(170,170,170)';
      ctx.fill();
      ctx.strokeStyle = 'rgb(153,153,153)';
      ctx.stroke();
      ctx.restore();
    },
    _drawArrow: function _drawArrow(ctx) {
      ctx.save();
      ctx.beginPath();
      var rate = this.distance / this.maxDistance;
      var arrowRadius = this.initArrowRadius - (this.initArrowRadius - this.minArrowRadius) * rate; // 画内圆

      ctx.arc(this.headCenter.x, this.headCenter.y, arrowRadius - (this.arrowWidth - rate), -Math.PI / 2, 0, true); // 画外圆

      ctx.arc(this.headCenter.x, this.headCenter.y, arrowRadius, 0, Math.PI * 3 / 2, false);
      ctx.lineTo(this.headCenter.x, this.headCenter.y - arrowRadius - this.arrowWidth / 2 + rate);
      ctx.lineTo(this.headCenter.x + this.arrowWidth * 2 - rate * 2, this.headCenter.y - arrowRadius + this.arrowWidth / 2);
      ctx.lineTo(this.headCenter.x, this.headCenter.y - arrowRadius + this.arrowWidth * 3 / 2 - rate);
      ctx.fillStyle = 'rgb(255,255,255)';
      ctx.fill();
      ctx.strokeStyle = 'rgb(170,170,170)';
      ctx.stroke();
      ctx.restore();
    }
  },
  watch: {
    y: function y() {
      this._draw();
    }
  }
});
;// CONCATENATED MODULE: ./src/package/BBubble.vue?vue&type=script&lang=js&
 /* harmony default export */ var package_BBubblevue_type_script_lang_js_ = (BBubblevue_type_script_lang_js_); 
;// CONCATENATED MODULE: ./node_modules/@vue/vue-loader-v15/lib/runtime/componentNormalizer.js
/* globals __VUE_SSR_CONTEXT__ */

// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).
// This module is a runtime utility for cleaner component module output and will
// be included in the final webpack user bundle.

function normalizeComponent (
  scriptExports,
  render,
  staticRenderFns,
  functionalTemplate,
  injectStyles,
  scopeId,
  moduleIdentifier, /* server only */
  shadowMode /* vue-cli only */
) {
  // Vue.extend constructor export interop
  var options = typeof scriptExports === 'function'
    ? scriptExports.options
    : scriptExports

  // render functions
  if (render) {
    options.render = render
    options.staticRenderFns = staticRenderFns
    options._compiled = true
  }

  // functional template
  if (functionalTemplate) {
    options.functional = true
  }

  // scopedId
  if (scopeId) {
    options._scopeId = 'data-v-' + scopeId
  }

  var hook
  if (moduleIdentifier) { // server build
    hook = function (context) {
      // 2.3 injection
      context =
        context || // cached call
        (this.$vnode && this.$vnode.ssrContext) || // stateful
        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional
      // 2.2 with runInNewContext: true
      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {
        context = __VUE_SSR_CONTEXT__
      }
      // inject component styles
      if (injectStyles) {
        injectStyles.call(this, context)
      }
      // register component module identifier for async chunk inferrence
      if (context && context._registeredComponents) {
        context._registeredComponents.add(moduleIdentifier)
      }
    }
    // used by ssr in case component is cached and beforeCreate
    // never gets called
    options._ssrRegister = hook
  } else if (injectStyles) {
    hook = shadowMode
      ? function () {
        injectStyles.call(
          this,
          (options.functional ? this.parent : this).$root.$options.shadowRoot
        )
      }
      : injectStyles
  }

  if (hook) {
    if (options.functional) {
      // for template-only hot-reload because in that case the render fn doesn't
      // go through the normalizer
      options._injectStyles = hook
      // register for functional component in vue file
      var originalRender = options.render
      options.render = function renderWithStyleInjection (h, context) {
        hook.call(context)
        return originalRender(h, context)
      }
    } else {
      // inject component registration as beforeCreate hook
      var existing = options.beforeCreate
      options.beforeCreate = existing
        ? [].concat(existing, hook)
        : [hook]
    }
  }

  return {
    exports: scriptExports,
    options: options
  }
}

;// CONCATENATED MODULE: ./src/package/BBubble.vue





/* normalize component */
;
var component = normalizeComponent(
  package_BBubblevue_type_script_lang_js_,
  BBubblevue_type_template_id_65b7cffe_scoped_true_render,
  BBubblevue_type_template_id_65b7cffe_scoped_true_staticRenderFns,
  false,
  null,
  "65b7cffe",
  null
  
)

/* harmony default export */ var BBubble = (component.exports);
;// CONCATENATED MODULE: ./node_modules/thread-loader/dist/cjs.js!./node_modules/babel-loader/lib/index.js??clonedRuleSet-40[0].rules[0].use[1]!./node_modules/@vue/vue-loader-v15/lib/index.js??vue-loader-options!./src/package/BScroll.vue?vue&type=script&lang=js&




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/* harmony default export */ var BScrollvue_type_script_lang_js_ = ({
  name: 'vue-better-scroll',
  props: {
    probeType: {
      type: Number,
      default: 1
    },
    click: {
      type: Boolean,
      default: true
    },
    listenScroll: {
      type: Boolean,
      default: false
    },
    listenBeforeScroll: {
      type: Boolean,
      default: false
    },
    scrollbar: {
      type: null,
      default: false
    },
    pullDownRefresh: {
      type: null,
      default: false
    },
    pullUpLoad: {
      type: null,
      default: false
    },
    startY: {
      type: Number,
      default: 0
    },
    refreshDelay: {
      type: Number,
      default: 20
    },
    freeScroll: {
      type: Boolean,
      default: false
    },
    options: {
      type: Object,
      default: function _default() {
        return {};
      }
    }
  },
  components: {
    BBubble: BBubble
  },
  data: function data() {
    return {
      beforePullDown: true,
      isRebounding: false,
      isPullingDown: false,
      pulling: false,
      isPullUpLoad: false,
      pullUpDirty: true,
      // 此变量用来检查是否加载到了最后一页
      pullDownStyle: '',
      bubbleY: 0,
      reboundPullDownTimer: null,
      afterPullDownTimer: null
    };
  },
  computed: {
    pullUpTxt: function pullUpTxt() {
      var moreTxt = this.pullUpLoad && this.pullUpLoad.txt && this.pullUpLoad.txt.more || '加载更多';
      var noMoreTxt = this.pullUpLoad && this.pullUpLoad.txt && this.pullUpLoad.txt.noMore || '没有更多数据了';
      return this.pullUpDirty ? moreTxt : noMoreTxt;
    },
    refreshTxt: function refreshTxt() {
      return this.pullDownRefresh && this.pullDownRefresh.txt || '刷新成功';
    }
  },
  created: function created() {
    this.pullDownInitTop = -50;
  },
  mounted: function mounted() {
    var _this = this;

    var thisWrapper = this.$refs.wrapper;
    thisWrapper.firstElementChild.firstElementChild.style.minHeight = thisWrapper.offsetHeight + 'px';
    this.$nextTick(function () {
      _this.initScroll();
    });
  },
  methods: {
    initScroll: function initScroll() {
      var _this2 = this;

      if (!this.$refs.wrapper) {
        return;
      }

      var options = Object.assign({}, this.options, {
        probeType: this.probeType,
        click: this.click,
        scrollY: true,
        // 下拉刷新组件 只能纵向 不能横向
        scrollX: false,
        scrollbar: this.scrollbar,
        pullDownRefresh: this.pullDownRefresh,
        pullUpLoad: this.pullUpLoad,
        startY: this.startY,
        freeScroll: this.freeScroll
      });
      this.scroll = new better_scroll_esm(this.$refs.wrapper, options);

      if (this.listenScroll) {
        this.scroll.on('scroll', function (pos) {
          _this2.$emit('scroll', pos);
        });
      }

      if (this.listenBeforeScroll) {
        this.scroll.on('beforeScrollStart', function () {
          _this2.$emit('before-scroll-start');
        });
      }

      if (this.pullDownRefresh) {
        this._initPullDownRefresh();
      }

      if (this.pullUpLoad) {
        this._initPullUpLoad();
      }
    },
    disable: function disable() {
      this.scroll && this.scroll.disable();
    },
    enable: function enable() {
      this.scroll && this.scroll.enable();
    },
    refresh: function refresh() {
      this.scroll && this.scroll.refresh();
    },
    scrollTo: function scrollTo() {
      this.scroll && this.scroll.scrollTo.apply(this.scroll, arguments);
    },
    scrollToElement: function scrollToElement() {
      this.scroll && this.scroll.scrollToElement.apply(this.scroll, arguments);
    },
    destroy: function destroy() {
      this.scroll && this.scroll.destroy();
    },
    // 加载数据后更新
    forceUpdate: function forceUpdate(dirty) {
      var _this3 = this;

      this.$nextTick(function () {
        _this3.pullUpDirty = dirty;

        if (_this3.pullDownRefresh && _this3.isPullingDown) {
          _this3.pulling = false;

          _this3._reboundPullDown().then(function () {
            _this3._afterPullDown();
          });
        } else if (_this3.pullUpLoad) {
          _this3.isPullUpLoad = false;

          _this3.scroll.finishPullUp();

          _this3.refresh();
        } else {
          _this3.refresh();
        }
      });
    },
    _initPullDownRefresh: function _initPullDownRefresh() {
      var _this4 = this;

      this.scroll.on('pullingDown', function () {
        _this4.beforePullDown = false;
        _this4.isPullingDown = true;
        _this4.pulling = true;

        _this4.$emit('pulling-down');
      });
      this.scroll.on('scroll', function (pos) {
        if (_this4.beforePullDown) {
          _this4.bubbleY = Math.max(0, pos.y + _this4.pullDownInitTop);
          _this4.pullDownStyle = "top:".concat(Math.min(pos.y + _this4.pullDownInitTop, 10), "px");
        } else {
          _this4.bubbleY = 0;
        }

        if (_this4.isRebounding) {
          _this4.pullDownStyle = "top:".concat(10 - (_this4.pullDownRefresh.stop - pos.y), "px");
        }
      });
    },
    _initPullUpLoad: function _initPullUpLoad() {
      var _this5 = this;

      this.scroll.on('pullingUp', function () {
        if (_this5.pullUpDirty) {
          _this5.isPullUpLoad = true;

          _this5.$emit('pulling-up');
        }
      });
    },
    _reboundPullDown: function _reboundPullDown() {
      var _this6 = this;

      var _this$pullDownRefresh = this.pullDownRefresh.stopTime,
          stopTime = _this$pullDownRefresh === void 0 ? 600 : _this$pullDownRefresh;
      return new Promise(function (resolve) {
        _this6.reboundPullDownTimer = setTimeout(function () {
          _this6.isRebounding = true;
          _this6.isPullingDown = false;

          _this6.scroll.finishPullUp();

          _this6.scroll.finishPullDown();

          resolve();
        }, stopTime);
      });
    },
    _afterPullDown: function _afterPullDown() {
      var _this7 = this;

      this.afterPullDownTimer = setTimeout(function () {
        _this7.pullDownStyle = "top:".concat(_this7.pullDownInitTop, "px");
        _this7.beforePullDown = true;
        _this7.isRebounding = false;

        _this7.refresh();
      }, this.scroll.options.bounceTime);
    }
  },
  destroyed: function destroyed() {
    this.scroll && this.scroll.destroy();
    this.scroll = null;
    this.reboundPullDownTimer && clearTimeout(this.reboundPullDownTimer);
    this.reboundPullDownTimer = null;
    this.afterPullDownTimer && clearTimeout(this.afterPullDownTimer);
    this.afterPullDownTimer = null;
  }
});
;// CONCATENATED MODULE: ./src/package/BScroll.vue?vue&type=script&lang=js&
 /* harmony default export */ var package_BScrollvue_type_script_lang_js_ = (BScrollvue_type_script_lang_js_); 
// EXTERNAL MODULE: ./node_modules/vue-style-loader/index.js??clonedRuleSet-12[0].rules[0].use[0]!./node_modules/css-loader/dist/cjs.js??clonedRuleSet-12[0].rules[0].use[1]!./node_modules/@vue/vue-loader-v15/lib/loaders/stylePostLoader.js!./node_modules/postcss-loader/dist/cjs.js??clonedRuleSet-12[0].rules[0].use[2]!./node_modules/postcss-loader/dist/cjs.js??clonedRuleSet-12[0].rules[0].use[3]!./node_modules/@vue/vue-loader-v15/lib/index.js??vue-loader-options!./src/package/BScroll.vue?vue&type=style&index=0&id=45828462&scoped=true&lang=css&
var BScrollvue_type_style_index_0_id_45828462_scoped_true_lang_css_ = __webpack_require__(5650);
;// CONCATENATED MODULE: ./src/package/BScroll.vue?vue&type=style&index=0&id=45828462&scoped=true&lang=css&

;// CONCATENATED MODULE: ./src/package/BScroll.vue



;


/* normalize component */

var BScroll_component = normalizeComponent(
  package_BScrollvue_type_script_lang_js_,
  render,
  staticRenderFns,
  false,
  null,
  "45828462",
  null
  
)

/* harmony default export */ var package_BScroll = (BScroll_component.exports);
;// CONCATENATED MODULE: ./src/package/index.js


/* istanbul ignore next */

package_BScroll.install = function (Vue) {
  Vue.component(package_BScroll.name, package_BScroll);
};

if (typeof window !== 'undefined' && window.Vue) {
  window.Vue.use(package_BScroll);
}

/* harmony default export */ var src_package = (package_BScroll);
;// CONCATENATED MODULE: ./node_modules/@vue/cli-service/lib/commands/build/entry-lib.js


/* harmony default export */ var entry_lib = (src_package);


}();
module.exports = __webpack_exports__;
/******/ })()
;
//# sourceMappingURL=vue2-better-scroll.common.js.map