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">vmodel/</a> compact.js
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<div class='fl pad1y space-right2'>
<span class="strong">99.08% </span>
<span class="quiet">Statements</span>
<span class='fraction'>108/109</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">93.48% </span>
<span class="quiet">Branches</span>
<span class='fraction'>43/46</span>
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<div class='fl pad1y space-right2'>
<span class="strong">100% </span>
<span class="quiet">Functions</span>
<span class='fraction'>13/13</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">99.08% </span>
<span class="quiet">Lines</span>
<span class='fraction'>108/109</span>
</div>
<div class='fl pad1y'>
<span class="strong">52 statements, 4 functions, 23 branches</span>
<span class="quiet">Ignored</span>
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<div class='status-line high'></div>
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<span class="cline-any cline-yes">1×</span></td><td class="text"><pre class="prettyprint lang-js">import { avalon, platform, modern, msie } from '../seed/core'
import { $$skipArray } from './reserved'
import { Action } from './Action'
import './share'
import './ProxyArray'
export { avalon, platform, itemFactory }
//如果浏览器不支持ecma262v5的Object.defineProperties或者存在BUG，比如IE8
//标准浏览器使用__defineGetter__, __defineSetter__实现
var canHideProperty = true
try {
Object.defineProperty({}, '_', {
value: 'x'
})
delete $$skipArray.$vbsetter
delete $$skipArray.$vbthis
} catch (e) {
/* istanbul ignore next*/
<span class="cstat-skip" title="statement not covered" > canHideProperty = false</span>
}
var protectedVB = { $vbthis: 1, $vbsetter: 1 }
/* istanbul ignore next */
export function hideProperty(host, name, value) {
<span class="missing-if-branch" title="else path not taken" >E</span>if (canHideProperty) {
Object.defineProperty(host, name, {
value: value,
writable: true,
enumerable: false,
configurable: true
})
} else <span class="cstat-no" title="statement not covered" >if (!protectedVB[name]) {</span>
/* istanbul ignore next */
<span class="cstat-skip" title="statement not covered" > host[name] = value</span>
}
}
export function watchFactory(core) {
return function $watch(expr, callback, deep) {
var w = new Action(core.__proxy__, {
deep: deep,
type: 'user',
expr: expr
}, callback)
if (!core[expr]) {
core[expr] = [w]
} else {
core[expr].push(w)
}
return function () {
w.dispose()
avalon.Array.remove(core[expr], w)
if (core[expr].length === 0) {
delete core[expr]
}
}
}
}
export function fireFactory(core) {
return function $fire(expr, a) {
var list = core[expr]
if (Array.isArray(list)) {
for (var i = 0, w; w = list[i++];) {
w.callback.call(w.vm, a, w.value, w.expr)
}
}
}
}
function wrapIt(str) {
return '☥' + str + '☥'
}
export function afterCreate(vm, core, keys, bindThis) {
var ac = vm.$accessors
//隐藏系统属性
for (let key in $$skipArray) {
if (avalon.msie < 9 && core[key] === void 0)
continue
hideProperty(vm, key, core[key])
}
//为不可监听的属性或方法赋值
for (let i = 0; i < keys.length; i++) {
let key = keys[i]
if (!(key in ac)) {
if (bindThis && typeof core[key] === 'function') {
vm[key] = core[key].bind(vm)
continue
}
vm[key] = core[key]
}
}
vm.$track = keys.join('☥')
function hasOwnKey(key) {
return wrapIt(vm.$track).indexOf(wrapIt(key)) > -1
}
if (avalon.msie < 9) {
vm.hasOwnProperty = hasOwnKey
}
vm.$events.__proxy__ = vm
}
platform.hideProperty = hideProperty
platform.fireFactory = fireFactory
platform.watchFactory = watchFactory
platform.afterCreate = afterCreate
var createViewModel = Object.defineProperties
var defineProperty
var timeBucket = new Date() - 0
/* istanbul ignore if*/
<span class="skip-if-branch" title="if path not taken" >I</span>if (!canHideProperty) {
<span class="cstat-skip" title="statement not covered" > if ('__defineGetter__' in avalon) {</span>
<span class="cstat-skip" title="statement not covered" > defineProperty = <span class="fstat-skip" title="function not covered" >function (obj, prop, desc) {</span></span>
<span class="cstat-skip" title="statement not covered" > if ('value' in desc) {</span>
<span class="cstat-skip" title="statement not covered" > obj[prop] = desc.value</span>
}
<span class="cstat-skip" title="statement not covered" > if ('get' in desc) {</span>
<span class="cstat-skip" title="statement not covered" > obj.__defineGetter__(prop, desc.get)</span>
}
<span class="cstat-skip" title="statement not covered" > if ('set' in desc) {</span>
<span class="cstat-skip" title="statement not covered" > obj.__defineSetter__(prop, desc.set)</span>
}
<span class="cstat-skip" title="statement not covered" > return obj</span>
}
<span class="cstat-skip" title="statement not covered" > createViewModel = <span class="fstat-skip" title="function not covered" >function (obj, descs) {</span></span>
<span class="cstat-skip" title="statement not covered" > for (var prop in descs) {</span>
<span class="cstat-skip" title="statement not covered" > if (descs.hasOwnProperty(prop)) {</span>
<span class="cstat-skip" title="statement not covered" > defineProperty(obj, prop, descs[prop])</span>
}
}
<span class="cstat-skip" title="statement not covered" > return obj</span>
}
}
/* istanbul ignore if*/
<span class="cstat-skip" title="statement not covered" > if (msie < 9) {</span>
<span class="cstat-skip" title="statement not covered" > var VBClassPool = {}</span>
<span class="cstat-skip" title="statement not covered" > window.execScript([ // jshint ignore:line</span>
'Function parseVB(code)',
'\tExecuteGlobal(code)',
'End Function' //转换一段文本为VB代码
].join('\n'), 'VBScript');
<span class="cstat-skip" title="statement not covered" > var VBMediator = <span class="fstat-skip" title="function not covered" >function (instance, accessors, name, value) {</span> // jshint ignore:line</span>
<span class="cstat-skip" title="statement not covered" > var accessor = accessors[name]</span>
<span class="cstat-skip" title="statement not covered" > if (arguments.length === 4) {</span>
<span class="cstat-skip" title="statement not covered" > accessor.set.call(instance, value)</span>
} else {
<span class="cstat-skip" title="statement not covered" > return accessor.get.call(instance)</span>
}
}
<span class="cstat-skip" title="statement not covered" > createViewModel = <span class="fstat-skip" title="function not covered" >function (name, accessors, properties) {</span></span>
// jshint ignore:line
<span class="cstat-skip" title="statement not covered" > var buffer = []</span>
<span class="cstat-skip" title="statement not covered" > buffer.push(</span>
'\tPrivate [$vbsetter]',
'\tPublic [$accessors]',
'\tPublic Default Function [$vbthis](ac' + timeBucket + ', s' + timeBucket + ')',
'\t\tSet [$accessors] = ac' + timeBucket + ': set [$vbsetter] = s' + timeBucket,
'\t\tSet [$vbthis] = Me', //链式调用
'\tEnd Function')
//添加普通属性,因为VBScript对象不能像JS那样随意增删属性，必须在这里预先定义好
<span class="cstat-skip" title="statement not covered" > var uniq = {</span>
$vbthis: true,
$vbsetter: true,
$accessors: true
}
<span class="cstat-skip" title="statement not covered" > for (name in $$skipArray) {</span>
<span class="cstat-skip" title="statement not covered" > if (!uniq[name]) {</span>
<span class="cstat-skip" title="statement not covered" > buffer.push('\tPublic [' + name + ']')</span>
<span class="cstat-skip" title="statement not covered" > uniq[name] = true</span>
}
}
//添加访问器属性
<span class="cstat-skip" title="statement not covered" > for (name in accessors) {</span>
<span class="cstat-skip" title="statement not covered" > if (uniq[name]) {</span>
<span class="cstat-skip" title="statement not covered" > continue</span>
}
<span class="cstat-skip" title="statement not covered" > uniq[name] = true</span>
<span class="cstat-skip" title="statement not covered" > buffer.push(</span>
//由于不知对方会传入什么,因此set, let都用上
'\tPublic Property Let [' + name + '](val' + timeBucket + ')', //setter
'\t\tCall [$vbsetter](Me, [$accessors], "' + name + '", val' + timeBucket + ')',
'\tEnd Property',
'\tPublic Property Set [' + name + '](val' + timeBucket + ')', //setter
'\t\tCall [$vbsetter](Me, [$accessors], "' + name + '", val' + timeBucket + ')',
'\tEnd Property',
'\tPublic Property Get [' + name + ']', //getter
'\tOn Error Resume Next', //必须优先使用set语句,否则它会误将数组当字符串返回
'\t\tSet[' + name + '] = [$vbsetter](Me, [$accessors],"' + name + '")',
'\tIf Err.Number <> 0 Then',
'\t\t[' + name + '] = [$vbsetter](Me, [$accessors],"' + name + '")',
'\tEnd If',
'\tOn Error Goto 0',
'\tEnd Property')
}
<span class="cstat-skip" title="statement not covered" > for (name in properties) {</span>
<span class="cstat-skip" title="statement not covered" > if (!uniq[name]) {</span>
<span class="cstat-skip" title="statement not covered" > uniq[name] = true</span>
<span class="cstat-skip" title="statement not covered" > buffer.push('\tPublic [' + name + ']')</span>
}
}
<span class="cstat-skip" title="statement not covered" > buffer.push('\tPublic [hasOwnProperty]')</span>
<span class="cstat-skip" title="statement not covered" > buffer.push('End Class')</span>
<span class="cstat-skip" title="statement not covered" > var body = buffer.join('\r\n')</span>
<span class="cstat-skip" title="statement not covered" > var className = VBClassPool[body]</span>
<span class="cstat-skip" title="statement not covered" > if (!className) {</span>
<span class="cstat-skip" title="statement not covered" > className = avalon.makeHashCode('VBClass')</span>
<span class="cstat-skip" title="statement not covered" > window.parseVB('Class ' + className + body)</span>
<span class="cstat-skip" title="statement not covered" > window.parseVB([</span>
'Function ' + className + 'Factory(acc, vbm)', //创建实例并传入两个关键的参数
'\tDim o',
'\tSet o = (New ' + className + ')(acc, vbm)',
'\tSet ' + className + 'Factory = o',
'End Function'
].join('\r\n'))
<span class="cstat-skip" title="statement not covered" > VBClassPool[body] = className</span>
}
<span class="cstat-skip" title="statement not covered" > var ret = window[className + 'Factory'](accessors, VBMediator) </span>//得到其产品
<span class="cstat-skip" title="statement not covered" > return ret </span>//得到其产品
}
}
}
platform.createViewModel = createViewModel</pre></td></tr>
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