avalon2
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an elegant efficient express mvvm framework
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<a href="../index.html">all files</a> / <a href="index.html">effect/</a> index.js
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<div class='fl pad1y space-right2'>
<span class="strong">91.95% </span>
<span class="quiet">Statements</span>
<span class='fraction'>137/149</span>
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<span class="strong">67.5% </span>
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<span class='fraction'>54/80</span>
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<span class="strong">100% </span>
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<span class='fraction'>21/21</span>
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<div class='fl pad1y space-right2'>
<span class="strong">91.95% </span>
<span class="quiet">Lines</span>
<span class='fraction'>137/149</span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { avalon, window, Cache } from '../seed/core'
import { cssDiff } from '../directives/css'
import {
css3,
animation,
transition,
animationEndEvent,
transitionEndEvent
} from './detect'
var effectDir = avalon.directive('effect', {
priority: 5,
diff: function (effect) {
var vdom = this.node
<span class="missing-if-branch" title="if path not taken" >I</span>if (typeof effect === 'string') {
<span class="cstat-no" title="statement not covered" > this.value = effect = {</span>
is: effect
}
<span class="cstat-no" title="statement not covered" > avalon.warn('ms-effect的指令值不再支持字符串,必须是一个对象')</span>
}
this.value = vdom.effect = effect
var ok = cssDiff.call(this, effect, this.oldValue)
var me = this
if (ok) {
setTimeout(function () {
vdom.animating = true
effectDir.update.call(me, vdom, vdom.effect)
})
vdom.animating = false
return true
}
return false
},
update: function (vdom, change, opts) {
var dom = vdom.dom
if (dom && dom.nodeType === 1) {
//要求配置对象必须指定is属性，action必须是布尔或enter,leave,move
var option = change || <span class="branch-1 cbranch-no" title="branch not covered" >opts</span>
var is = option.is
var globalOption = avalon.effects[is]
if (!globalOption) {//如果没有定义特效
avalon.warn(is + ' effect is undefined')
return
}
var finalOption = {}
var action = actionMaps[option.action]
if (typeof Effect.prototype[action] !== 'function') {
avalon.warn('action is undefined')
return
}
//必须预定义特效
var effect = new avalon.Effect(dom)
avalon.mix(finalOption, globalOption, option, { action })
if (finalOption.queue) {
animationQueue.push(function () {
effect[action](finalOption)
})
callNextAnimation()
} else {
effect[action](finalOption)
}
return true
}
}
})
let move = 'move'
let leave = 'leave'
let enter = 'enter'
var actionMaps = {
'true': enter,
'false': leave,
enter,
leave,
move,
'undefined': enter
}
var animationQueue = []
export function callNextAnimation() {
var fn = animationQueue[0]
<span class="missing-if-branch" title="else path not taken" >E</span>if (fn) {
fn()
}
}
avalon.effects = {}
avalon.effect = function (name, opts) {
var definition = avalon.effects[name] = (opts || {})
<span class="missing-if-branch" title="else path not taken" >E</span>if (css3 && definition.css !== false) {
patchObject(definition, 'enterClass', name + '-enter')
patchObject(definition, 'enterActiveClass', definition.enterClass + '-active')
patchObject(definition, 'leaveClass', name + '-leave')
patchObject(definition, 'leaveActiveClass', definition.leaveClass + '-active')
}
return definition
}
function patchObject(obj, name, value) {
<span class="missing-if-branch" title="else path not taken" >E</span>if (!obj[name]) {
obj[name] = value
}
}
var Effect = function (dom) {
this.dom = dom
}
avalon.Effect = Effect
Effect.prototype = {
enter: createAction('Enter'),
leave: createAction('Leave'),
move: createAction('Move')
}
function execHooks(options, name, el) {
var fns = [].concat(options[name])
for (var i = 0, fn; fn = fns[i++];) {
<span class="missing-if-branch" title="else path not taken" >E</span>if (typeof fn === 'function') {
fn(el)
}
}
}
var staggerCache = new Cache(128)
function createAction(action) {
var lower = action.toLowerCase()
return function (option) {
var dom = this.dom
var elem = avalon(dom)
//处理与ms-for指令相关的stagger
//========BEGIN=====
var staggerTime = isFinite(option.stagger) ? option.stagger * 1000 : 0
if (staggerTime) {
<span class="missing-if-branch" title="if path not taken" >I</span>if (option.staggerKey) {
<span class="cstat-no" title="statement not covered" > var stagger = staggerCache.get(option.staggerKey) ||</span>
staggerCache.put(option.staggerKey, {
count: 0,
items: 0
})
<span class="cstat-no" title="statement not covered" > stagger.count++</span>
<span class="cstat-no" title="statement not covered" > stagger.items++</span>
}
}
var staggerIndex = stagger && <span class="branch-1 cbranch-no" title="branch not covered" >stagger.count </span>|| 0
//=======END==========
var stopAnimationID
var animationDone = function (e) {
var isOk = e !== false
if (--dom.__ms_effect_ === 0) {
avalon.unbind(dom, transitionEndEvent)
avalon.unbind(dom, animationEndEvent)
}
clearTimeout(stopAnimationID)
var dirWord = isOk ? <span class="branch-0 cbranch-no" title="branch not covered" >'Done' </span>: 'Abort'
execHooks(option, 'on' + action + dirWord, dom)
<span class="missing-if-branch" title="if path not taken" >I</span>if (stagger) {
<span class="cstat-no" title="statement not covered" > if (--stagger.items === 0) {</span>
<span class="cstat-no" title="statement not covered" > stagger.count = 0</span>
}
}
<span class="missing-if-branch" title="if path not taken" >I</span>if (option.queue) {
<span class="cstat-no" title="statement not covered" > animationQueue.shift()</span>
<span class="cstat-no" title="statement not covered" > callNextAnimation()</span>
}
}
//执行开始前的钩子
execHooks(option, 'onBefore' + action, dom)
if (option[lower]) {
//使用JS方式执行动画
option[lower](dom, function (ok) {
animationDone(ok !== false)
})
} else <span class="missing-if-branch" title="else path not taken" >E</span>if (css3) {
//使用CSS3方式执行动画
elem.addClass(option[lower + 'Class'])
elem.removeClass(getNeedRemoved(option, lower))
if (!dom.__ms_effect_) {
//绑定动画结束事件
elem.bind(transitionEndEvent, animationDone)
elem.bind(animationEndEvent, animationDone)
dom.__ms_effect_ = 1
} else {
dom.__ms_effect_++
}
setTimeout(function () {
//用xxx-active代替xxx类名的方式 触发CSS3动画
var time = avalon.root.offsetWidth === NaN
elem.addClass(option[lower + 'ActiveClass'])
//计算动画时长
time = getAnimationTime(dom)
<span class="missing-if-branch" title="if path not taken" >I</span>if (!time === 0) {
//立即结束动画
<span class="cstat-no" title="statement not covered" > animationDone(false)</span>
} else <span class="missing-if-branch" title="else path not taken" >E</span>if (!staggerTime) {
//如果动画超出时长还没有调用结束事件,这可能是元素被移除了
//如果强制结束动画
stopAnimationID = setTimeout(function () {
animationDone(false)
}, time + 32)
}
}, 17 + staggerTime * staggerIndex)// = 1000/60
}
}
}
avalon.applyEffect = function (dom, vdom, opts) {
var cb = opts.cb
var curEffect = vdom.effect
if (curEffect && dom && dom.nodeType === 1) {
var hook = opts.hook
var old = curEffect[hook]
<span class="missing-if-branch" title="else path not taken" >E</span>if (cb) {
<span class="missing-if-branch" title="if path not taken" >I</span>if (Array.isArray(old)) {
<span class="cstat-no" title="statement not covered" > old.push(cb)</span>
} else <span class="missing-if-branch" title="if path not taken" >I</span>if (old) {
<span class="cstat-no" title="statement not covered" > curEffect[hook] = [old, cb]</span>
} else {
curEffect[hook] = [cb]
}
}
getAction(opts)
avalon.directives.effect.update(vdom, curEffect, avalon.shadowCopy({}, opts))
} else <span class="missing-if-branch" title="else path not taken" >E</span>if (cb) {
cb(dom)
}
}
/**
* 获取方向
*/
export function getAction(opts) {
<span class="missing-if-branch" title="else path not taken" >E</span>if (!opts.action) {
return opts.action = opts.hook.replace(/^on/, '').replace(/Done$/, '').toLowerCase()
}
}
/**
* 需要移除的类名
*/
function getNeedRemoved(options, name) {
var name = name === 'leave' ? <span class="branch-0 cbranch-no" title="branch not covered" >'enter' </span>: 'leave'
return Array(name + 'Class', name + 'ActiveClass').map(function (cls) {
return options[cls]
}).join(' ')
}
/**
* 计算动画长度
*/
var transitionDuration = avalon.cssName('transition-duration')
var animationDuration = avalon.cssName('animation-duration')
var rsecond = /\d+s$/
export function toMillisecond(str) {
var ratio = rsecond.test(str) ? 1000 : <span class="branch-1 cbranch-no" title="branch not covered" >1</span>
return parseFloat(str) * ratio
}
export function getAnimationTime(dom) {
var computedStyles = window.getComputedStyle(dom,null)
var tranDuration = computedStyles[transitionDuration]
var animDuration = computedStyles[animationDuration]
return toMillisecond(tranDuration) || <span class="branch-1 cbranch-no" title="branch not covered" >toMillisecond(animDuration)</span>
}
/**
*
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="dist/avalon.js"></script>
<script>
avalon.effect('animate')
var vm = avalon.define({
$id: 'ani',
a: true
})
</script>
<style>
.animate-enter, .animate-leave{
width:100px;
height:100px;
background: #29b6f6;
transition:all 2s;
-moz-transition: all 2s;
-webkit-transition: all 2s;
-o-transition:all 2s;
}
.animate-enter-active, .animate-leave{
width:300px;
height:300px;
}
.animate-leave-active{
width:100px;
height:100px;
}
</style>
</head>
<body>
<div :controller='ani' >
<p><input type='button' value='click' :click='@a =!@a'></p>
<div :effect="{is:'animate',action:@a}"></div>
</div>
</body>
</html>
*
*/</pre></td></tr>
</table></pre>
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