1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 | 1× 1× 1× 1× 1× 2× 1× 8× 8× 8× 248× 103× 41× 41× 41× 76× 76× 76× 41× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 75× 75× 15× 15× 1× 14× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 2× 1× 1× 1× | import { inBrowser, isWeChatDevTools } from './env' import { extend } from './lang' let elementStyle = inBrowser && document.createElement('div').style let vendor = (() => { Iif (!inBrowser) { return false } // first pick up standard to fix #743 let transformNames = { standard: 'transform', webkit: 'webkitTransform', Moz: 'MozTransform', O: 'OTransform', ms: 'msTransform' } for (let key in transformNames) { if (elementStyle[transformNames[key]] !== undefined) { return key } } return false })() function prefixStyle(style) { Iif (vendor === false) { return false } Iif (vendor === 'standard') { if (style === 'transitionEnd') { return 'transitionend' } return style } return vendor + style.charAt(0).toUpperCase() + style.substr(1) } export function addEvent(el, type, fn, capture) { el.addEventListener(type, fn, {passive: false, capture: !!capture}) } export function removeEvent(el, type, fn, capture) { el.removeEventListener(type, fn, {passive: false, capture: !!capture}) } export function offset(el) { let left = 0 let top = 0 while (el) { left -= el.offsetLeft top -= el.offsetTop el = el.offsetParent } return { left, top } } export function offsetToBody(el) { let rect = el.getBoundingClientRect() return { left: -(rect.left + window.pageXOffset), top: -(rect.top + window.pageYOffset) } } export const cssVendor = (vendor && vendor !== 'standard') ? '-' + vendor.toLowerCase() + '-' : '' let transform = prefixStyle('transform') let transition = prefixStyle('transition') export const hasPerspective = inBrowser && prefixStyle('perspective') in elementStyle // fix issue #361 export const hasTouch = inBrowser && ('ontouchstart' in window || isWeChatDevTools) export const hasTransform = transform !== false export const hasTransition = inBrowser && transition in elementStyle export const style = { transform, transition, transitionTimingFunction: prefixStyle('transitionTimingFunction'), transitionDuration: prefixStyle('transitionDuration'), transitionDelay: prefixStyle('transitionDelay'), transformOrigin: prefixStyle('transformOrigin'), transitionEnd: prefixStyle('transitionEnd') } export const TOUCH_EVENT = 1 export const MOUSE_EVENT = 2 export const eventType = { touchstart: TOUCH_EVENT, touchmove: TOUCH_EVENT, touchend: TOUCH_EVENT, mousedown: MOUSE_EVENT, mousemove: MOUSE_EVENT, mouseup: MOUSE_EVENT } export function getRect(el) { Iif (el instanceof window.SVGElement) { let 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 } } } export function preventDefaultException(el, exceptions) { for (let i in exceptions) { if (exceptions[i].test(el[i])) { return true } } return false } export function tap(e, eventName) { let ev = document.createEvent('Event') ev.initEvent(eventName, true, true) ev.pageX = e.pageX ev.pageY = e.pageY e.target.dispatchEvent(ev) } export function click(e, event = 'click') { let eventSource Iif (e.type === 'mouseup' || e.type === 'mousecancel') { eventSource = e } else Iif (e.type === 'touchend' || e.type === 'touchcancel') { eventSource = e.changedTouches[0] } let posSrc = {} Iif (eventSource) { posSrc.screenX = eventSource.screenX || 0 posSrc.screenY = eventSource.screenY || 0 posSrc.clientX = eventSource.clientX || 0 posSrc.clientY = eventSource.clientY || 0 } let ev const bubbles = true const cancelable = true Eif (typeof MouseEvent !== 'undefined') { try { ev = new MouseEvent(event, extend({ bubbles, cancelable }, posSrc)) } catch (e) { 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) } export function dblclick(e) { click(e, 'dblclick') } export function prepend(el, target) { if (target.firstChild) { before(el, target.firstChild) } else { target.appendChild(el) } } export function before(el, target) { target.parentNode.insertBefore(el, target) } export function removeChild(el, child) { el.removeChild(child) } |