avalon2
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an elegant efficient express mvvm framework
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<title>Code coverage report for effect/detect.js</title>
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<h1>
<a href="../index.html">all files</a> / <a href="index.html">effect/</a> detect.js
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<span class="strong">100% </span>
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<span class="strong">4 statements</span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/**
* ------------------------------------------------------------
* 检测浏览器对CSS动画的支持与API名
* ------------------------------------------------------------
*/
import { window } from '../seed/core'
let checker = {
TransitionEvent: 'transitionend',
WebKitTransitionEvent: 'webkitTransitionEnd',
OTransitionEvent: 'oTransitionEnd',
otransitionEvent: 'otransitionEnd'
}
let css3,tran,ani,name,animationEndEvent,transitionEndEvent
let transition = false
let animation = false
//有的浏览器同时支持私有实现与标准写法，比如webkit支持前两种，Opera支持1、3、4
for (name in checker) {
<span class="missing-if-branch" title="else path not taken" >E</span>if (window[name]) {
tran = checker[name]
break
}
/* istanbul ignore next */
<span class="cstat-skip" title="statement not covered" > try {</span>
<span class="cstat-skip" title="statement not covered" > let a = document.createEvent(name)</span>
<span class="cstat-skip" title="statement not covered" > tran = checker[name]</span>
<span class="cstat-skip" title="statement not covered" > break</span>
} catch (e) {
}
}
<span class="missing-if-branch" title="else path not taken" >E</span>if (typeof tran === 'string') {
transition = css3 = true
transitionEndEvent = tran
}
//animationend有两个可用形态
//IE10+, Firefox 16+ & Opera 12.1+: animationend
//Chrome/Safari: webkitAnimationEnd
//http://blogs.msdn.com/b/davrous/archive/2011/12/06/introduction-to-css3-animat ions.aspx
//IE10也可以使用MSAnimationEnd监听，但是回调里的事件 type依然为animationend
// el.addEventListener('MSAnimationEnd', function(e) {
// alert(e.type)// animationend！！！
// })
checker = {
'AnimationEvent': 'animationend',
'WebKitAnimationEvent': 'webkitAnimationEnd'
}
for (name in checker) {
<span class="missing-if-branch" title="else path not taken" >E</span>if (window[name]) {
ani = checker[name]
break
}
}
<span class="missing-if-branch" title="else path not taken" >E</span>if (typeof ani === 'string') {
animation = css3 = true
animationEndEvent = ani
}
export {
css3,
animation,
transition,
animationEndEvent,
transitionEndEvent
}
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