{
	"version": 3,
	"sources": [
		"plugin.ts"
	],
	"names": [
		"Interaction",
		"is",
		"pointerUtils",
		"updateGestureProps",
		"interaction",
		"iEvent",
		"phase",
		"prepared",
		"name",
		"pointers",
		"map",
		"p",
		"pointer",
		"starting",
		"ending",
		"deltaSource",
		"interactable",
		"options",
		"touches",
		"distance",
		"touchDistance",
		"box",
		"touchBBox",
		"scale",
		"ds",
		"angle",
		"touchAngle",
		"da",
		"gesture",
		"startDistance",
		"startAngle",
		"prevEvent",
		"number",
		"Infinity",
		"isNaN",
		"id",
		"before",
		"install",
		"scope",
		"actions",
		"Interactable",
		"defaults",
		"prototype",
		"gesturable",
		"object",
		"this",
		"enabled",
		"setPerAction",
		"setOnEvents",
		"bool",
		"methodDict",
		"listeners",
		"interactions:action-start",
		"interactions:action-move",
		"interactions:action-end",
		"[object Object]",
		"arg",
		"length",
		"gestureOptions",
		"action",
		"getCursor"
	],
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	"sourcesContent": [
		"import { InteractEvent, EventPhase } from '@interactjs/core/InteractEvent'\nimport Interaction, { DoPhaseArg } from '@interactjs/core/Interaction'\nimport { Options } from '@interactjs/core/defaultOptions'\nimport { Scope, Plugin } from '@interactjs/core/scope'\nimport { ActionMethod, GesturableOptions, Rect, PointerType } from '@interactjs/types/index'\nimport is from '@interactjs/utils/is'\nimport * as pointerUtils from '@interactjs/utils/pointerUtils'\n\nexport type GesturableMethod = ActionMethod<GesturableOptions>\n\ndeclare module '@interactjs/core/Interaction' {\n  interface Interaction {\n    gesture?: {\n      angle: number           // angle from first to second touch\n      distance: number\n      scale: number           // gesture.distance / gesture.startDistance\n      startAngle: number      // angle of line joining two touches\n      startDistance: number   // distance between two touches of touchStart\n    }\n  }\n}\n\ndeclare module '@interactjs/core/Interactable' {\n  interface Interactable {\n    gesturable: GesturableMethod\n  }\n}\n\ndeclare module '@interactjs/core/defaultOptions' {\n  interface ActionDefaults {\n    gesture: GesturableOptions\n  }\n}\n\ndeclare module '@interactjs/core/scope' {\n  interface ActionMap {\n    gesture?: typeof gesture\n  }\n}\n\nexport interface GestureEvent extends InteractEvent<'gesture'> {\n  distance: number\n  angle: number\n  da: number // angle change\n  scale: number // ratio of distance start to current event\n  ds: number // scale change\n  box: Rect // enclosing box of all points\n  touches: PointerType[]\n}\n\nexport interface GestureSignalArg extends DoPhaseArg<'gesture', EventPhase> {\n  iEvent: GestureEvent\n  interaction: Interaction<'gesture'>\n}\n\nfunction install (scope: Scope) {\n  const {\n    actions,\n    Interactable,\n    defaults,\n  } = scope\n\n  /**\n   * ```js\n   * interact(element).gesturable({\n   *     onstart: function (event) {},\n   *     onmove : function (event) {},\n   *     onend  : function (event) {},\n   *\n   *     // limit multiple gestures.\n   *     // See the explanation in {@link Interactable.draggable} example\n   *     max: Infinity,\n   *     maxPerElement: 1,\n   * })\n   *\n   * var isGestureable = interact(element).gesturable()\n   * ```\n   *\n   * Gets or sets whether multitouch gestures can be performed on the target\n   *\n   * @param {boolean | object} [options] true/false or An object with event\n   * listeners to be fired on gesture events (makes the Interactable gesturable)\n   * @return {boolean | Interactable} A boolean indicating if this can be the\n   * target of gesture events, or this Interactable\n   */\n  Interactable.prototype.gesturable = function (this: InstanceType<typeof Interactable>, options: GesturableOptions | boolean) {\n    if (is.object(options)) {\n      this.options.gesture.enabled = options.enabled !== false\n      this.setPerAction('gesture', options)\n      this.setOnEvents('gesture', options)\n\n      return this\n    }\n\n    if (is.bool(options)) {\n      this.options.gesture.enabled = options\n\n      return this\n    }\n\n    return this.options.gesture as Options\n  } as GesturableMethod\n\n  actions.map.gesture = gesture\n  actions.methodDict.gesture = 'gesturable'\n\n  defaults.actions.gesture = gesture.defaults\n}\n\nfunction updateGestureProps ({ interaction, iEvent, phase }: GestureSignalArg) {\n  if (interaction.prepared.name !== 'gesture') { return }\n\n  const pointers = interaction.pointers.map(p => p.pointer)\n  const starting = phase === 'start'\n  const ending = phase === 'end'\n  const deltaSource = interaction.interactable.options.deltaSource\n\n  iEvent.touches = [pointers[0], pointers[1]]\n\n  if (starting) {\n    iEvent.distance = pointerUtils.touchDistance(pointers, deltaSource)\n    iEvent.box      = pointerUtils.touchBBox(pointers)\n    iEvent.scale    = 1\n    iEvent.ds       = 0\n    iEvent.angle    = pointerUtils.touchAngle(pointers, deltaSource)\n    iEvent.da       = 0\n\n    interaction.gesture.startDistance = iEvent.distance\n    interaction.gesture.startAngle = iEvent.angle\n  }\n  else if (ending) {\n    const prevEvent = interaction.prevEvent as GestureEvent\n\n    iEvent.distance = prevEvent.distance\n    iEvent.box      = prevEvent.box\n    iEvent.scale    = prevEvent.scale\n    iEvent.ds       = 0\n    iEvent.angle    = prevEvent.angle\n    iEvent.da       = 0\n  }\n  else {\n    iEvent.distance = pointerUtils.touchDistance(pointers, deltaSource)\n    iEvent.box      = pointerUtils.touchBBox(pointers)\n    iEvent.scale    = iEvent.distance / interaction.gesture.startDistance\n    iEvent.angle    = pointerUtils.touchAngle(pointers, deltaSource)\n\n    iEvent.ds = iEvent.scale - interaction.gesture.scale\n    iEvent.da = iEvent.angle - interaction.gesture.angle\n  }\n\n  interaction.gesture.distance = iEvent.distance\n  interaction.gesture.angle = iEvent.angle\n\n  if (is.number(iEvent.scale) &&\n      iEvent.scale !== Infinity &&\n      !isNaN(iEvent.scale)) {\n    interaction.gesture.scale = iEvent.scale\n  }\n}\n\nconst gesture: Plugin = {\n  id: 'actions/gesture',\n  before: ['actions/drag', 'actions/resize'],\n  install,\n  listeners: {\n    'interactions:action-start': updateGestureProps,\n    'interactions:action-move': updateGestureProps,\n    'interactions:action-end': updateGestureProps,\n\n    'interactions:new': ({ interaction }) => {\n      interaction.gesture = {\n        angle: 0,\n        distance: 0,\n        scale: 1,\n        startAngle: 0,\n        startDistance: 0,\n      }\n    },\n\n    'auto-start:check': arg => {\n      if (arg.interaction.pointers.length < 2) {\n        return undefined\n      }\n\n      const gestureOptions = arg.interactable.options.gesture\n\n      if (!(gestureOptions && gestureOptions.enabled)) {\n        return undefined\n      }\n\n      arg.action = { name: 'gesture' }\n\n      return false\n    },\n  },\n\n  defaults: {\n  },\n\n  getCursor () {\n    return ''\n  },\n}\n\nexport default gesture\n"
	]
}