/avalon.js
JavaScript | 4342 lines | 3954 code | 128 blank | 260 comment | 829 complexity | 112602523490a1c6c96a1d96389c986a MD5 | raw file
- /*==================================================
- Copyright 20013-2014 司徒正美 and other contributors
- http://www.cnblogs.com/rubylouvre/
- https://github.com/RubyLouvre
- http://weibo.com/jslouvre/
-
- Released under the MIT license
- avalon 1.3.1 2014.6.9
- ==================================================*/
- (function(DOC) {
- var prefix = "ms-"
- var expose = new Date - 0
- var subscribers = "$" + expose
- var window = this || (0, eval)("this") //http://addyosmani.com/blog/understanding-mvvm-a-guide-for-javascript-developers/
- var otherRequire = window.require
- var otherDefine = window.define
- var stopRepeatAssign = false
- var rword = /[^, ]+/g //切割字符串为一个个小块,以空格或豆号分开它们,结合replace实现字符串的forEach
- var rnative = /\[native code\]/ //判定是否原生函数
- var rcomplexType = /^(?:object|array)$/
- var rwindow = /^\[object (Window|DOMWindow|global)\]$/
- var oproto = Object.prototype
- var ohasOwn = oproto.hasOwnProperty
- var serialize = oproto.toString
- var ap = Array.prototype
- var aslice = ap.slice
- var Registry = {} //将函数曝光到此对象上,方便访问器收集依赖
- var W3C = window.dispatchEvent
- var root = DOC.documentElement
- var head = DOC.getElementsByTagName("head")[0] //HEAD元素
- var hyperspace = DOC.createDocumentFragment()
- var cinerator = DOC.createElement("div")
- var class2type = {}
- "Boolean Number String Function Array Date RegExp Object Error".replace(rword, function(name) {
- class2type["[object " + name + "]"] = name.toLowerCase()
- })
- function noop() {
- }
- function log(a) {
- window.console && console.log(W3C ? a : a + "")
- }
- /*********************************************************************
- * 命名空间与工具函数 *
- **********************************************************************/
- avalon = function(el) { //创建jQuery式的无new 实例化结构
- return new avalon.init(el)
- }
- avalon.init = function(el) {
- this[0] = this.element = el
- }
- avalon.fn = avalon.prototype = avalon.init.prototype
- /*取得目标的类型*/
- function getType(obj) {
- if (obj == null) {
- return String(obj)
- }
- // 早期的webkit内核浏览器实现了已废弃的ecma262v4标准,可以将正则字面量当作函数使用,因此typeof在判定正则时会返回function
- return typeof obj === "object" || typeof obj === "function" ?
- class2type[serialize.call(obj)] || "object" :
- typeof obj
- }
- avalon.type = getType
- avalon.isWindow = function(obj) {
- if (!obj)
- return false
- // 利用IE678 window == document为true,document == window竟然为false的神奇特性
- // 标准浏览器及IE9,IE10等使用 正则检测
- return obj == obj.document && obj.document != obj
- }
- function isWindow(obj) {
- return rwindow.test(serialize.call(obj))
- }
- if (isWindow(window)) {
- avalon.isWindow = isWindow
- }
- /*判定是否是一个朴素的javascript对象(Object),不是DOM对象,不是BOM对象,不是自定义类的实例*/
- avalon.isPlainObject = function(obj) {
- if (getType(obj) !== "object" || obj.nodeType || this.isWindow(obj)) {
- return false
- }
- try {
- if (obj.constructor && !ohasOwn.call(obj.constructor.prototype, "isPrototypeOf")) {
- return false
- }
- } catch (e) {
- return false
- }
- return true
- }
- if (rnative.test(Object.getPrototypeOf)) {
- avalon.isPlainObject = function(obj) {
- return !!obj && typeof obj === "object" && Object.getPrototypeOf(obj) === oproto
- }
- }
- avalon.mix = avalon.fn.mix = function() {
- var options, name, src, copy, copyIsArray, clone,
- target = arguments[0] || {},
- i = 1,
- length = arguments.length,
- deep = false
- // 如果第一个参数为布尔,判定是否深拷贝
- if (typeof target === "boolean") {
- deep = target
- target = arguments[1] || {}
- i++
- }
- //确保接受方为一个复杂的数据类型
- if (typeof target !== "object" && getType(target) !== "function") {
- target = {}
- }
- //如果只有一个参数,那么新成员添加于mix所在的对象上
- if (i === length) {
- target = this
- i--
- }
- for (; i < length; i++) {
- //只处理非空参数
- if ((options = arguments[i]) != null) {
- for (name in options) {
- src = target[name]
- copy = options[name]
- // 防止环引用
- if (target === copy) {
- continue
- }
- if (deep && copy && (avalon.isPlainObject(copy) || (copyIsArray = Array.isArray(copy)))) {
- if (copyIsArray) {
- copyIsArray = false
- clone = src && Array.isArray(src) ? src : []
- } else {
- clone = src && avalon.isPlainObject(src) ? src : {}
- }
- target[name] = avalon.mix(deep, clone, copy)
- } else if (copy !== void 0) {
- target[name] = copy
- }
- }
- }
- }
- return target
- }
- function resetNumber(a, n, end) { //用于模拟slice, splice的效果
- if ((a === +a) && !(a % 1)) { //如果是整数
- if (a < 0) {
- a = a * -1 >= n ? 0 : a + n
- } else {
- a = a > n ? n : a
- }
- } else {
- a = end ? n : 0
- }
- return a
- }
- function oneObject(array, val) {
- if (typeof array === "string") {
- array = array.match(rword) || []
- }
- var result = {},
- value = val !== void 0 ? val : 1
- for (var i = 0, n = array.length; i < n; i++) {
- result[array[i]] = value
- }
- return result
- }
- avalon.mix({
- rword: rword,
- subscribers: subscribers,
- version: 1.3,
- ui: {},
- log: log,
- slice: W3C ? function(nodes, start, end) {
- return aslice.call(nodes, start, end)
- } : function(nodes, start, end) {
- var ret = [],
- n = nodes.length
- start = resetNumber(start, n)
- end = resetNumber(end, n, 1)
- for (var i = start; i < end; ++i) {
- ret[i - start] = nodes[i]
- }
- return ret
- },
- noop: noop,
- /*如果不用Error对象封装一下,str在控制台下可能会乱码*/
- error: function(str, e) {
- throw new (e || Error)(str)
- },
- /*将一个以空格或逗号隔开的字符串或数组,转换成一个键值都为1的对象*/
- oneObject: oneObject,
- /* avalon.range(10)
- => [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
- avalon.range(1, 11)
- => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
- avalon.range(0, 30, 5)
- => [0, 5, 10, 15, 20, 25]
- avalon.range(0, -10, -1)
- => [0, -1, -2, -3, -4, -5, -6, -7, -8, -9]
- avalon.range(0)
- => []*/
- range: function(start, end, step) { // 用于生成整数数组
- step || (step = 1)
- if (end == null) {
- end = start || 0
- start = 0
- }
- var index = -1,
- length = Math.max(0, Math.ceil((end - start) / step)),
- result = Array(length)
- while (++index < length) {
- result[index] = start
- start += step
- }
- return result
- },
- eventHooks: {},
- /*绑定事件*/
- bind: function(el, type, fn, phase) {
- var hooks = avalon.eventHooks
- var hook = hooks[type]
- if (typeof hook === "object") {
- type = hook.type
- if (hook.deel) {
- fn = hook.deel(el, fn)
- }
- }
- var callback = W3C ? fn : function(e) {
- return fn.call(el, fixEvent(e))
- }
- if (W3C) {
- el.addEventListener(type, callback, !!phase)
- } else {
- el.attachEvent("on" + type, callback)
- }
- return callback
- },
- /*卸载事件*/
- unbind: function(el, type, fn, phase) {
- var hooks = avalon.eventHooks
- var hook = hooks[type]
- var callback = fn || noop
- if (typeof hook === "object") {
- type = hook.type
- }
- if (W3C) {
- el.removeEventListener(type, callback, !!phase)
- } else {
- el.detachEvent("on" + type, callback)
- }
- },
- /*读写删除元素节点的样式*/
- css: function(node, name, value) {
- if (node instanceof avalon) {
- node = node[0]
- }
- var prop = /[_-]/.test(name) ? camelize(name) : name
- name = avalon.cssName(prop) || prop
- if (value === void 0 || typeof value === "boolean") { //获取样式
- var fn = cssHooks[prop + ":get"] || cssHooks["@:get"]
- var val = fn(node, name)
- return value === true ? parseFloat(val) || 0 : val
- } else if (value === "") { //请除样式
- node.style[name] = ""
- } else { //设置样式
- if (value == null || value !== value) {
- return
- }
- if (isFinite(value) && !avalon.cssNumber[prop]) {
- value += "px"
- }
- fn = cssHooks[prop + ":set"] || cssHooks["@:set"]
- fn(node, name, value)
- }
- },
- /*遍历数组与对象,回调的第一个参数为索引或键名,第二个或元素或键值*/
- each: function(obj, fn) {
- if (obj) { //排除null, undefined
- var i = 0
- if (isArrayLike(obj)) {
- for (var n = obj.length; i < n; i++) {
- fn(i, obj[i])
- }
- } else {
- for (i in obj) {
- if (obj.hasOwnProperty(i)) {
- fn(i, obj[i])
- }
- }
- }
- }
- },
- //收集元素的data-{{prefix}}-*属性,并转换为对象
- getWidgetData: function(elem, prefix) {
- var raw = avalon(elem).data()
- var result = {}
- for (var i in raw) {
- if (i.indexOf(prefix) === 0) {
- result[i.replace(prefix, "").replace(/\w/, function(a) {
- return a.toLowerCase()
- })] = raw[i]
- }
- }
- return result
- },
- Array: {
- /*只有当前数组不存在此元素时只添加它*/
- ensure: function(target, item) {
- if (target.indexOf(item) === -1) {
- target.push(item)
- }
- return target
- },
- /*移除数组中指定位置的元素,返回布尔表示成功与否*/
- removeAt: function(target, index) {
- return !!target.splice(index, 1).length
- },
- /*移除数组中第一个匹配传参的那个元素,返回布尔表示成功与否*/
- remove: function(target, item) {
- var index = target.indexOf(item)
- if (~index)
- return avalon.Array.removeAt(target, index)
- return false
- }
- }
- })
- //生成UUID http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript
- function generateID() {
- return "avalon" + Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15)
- }
- /*判定类数组,如节点集合,纯数组,arguments与拥有非负整数的length属性的纯JS对象*/
- function isArrayLike(obj) {
- if (obj && typeof obj === "object" && !avalon.isWindow(obj)) {
- var n = obj.length
- if (+n === n && !(n % 1) && n >= 0) { //检测length属性是否为非负整数
- try {
- if ({}.propertyIsEnumerable.call(obj, "length") === false) { //如果是原生对象
- return Array.isArray(obj) || /^\s?function/.test(obj.item || obj.callee)
- }
- return true
- } catch (e) { //IE的NodeList直接抛错
- return true
- }
- }
- }
- return false
- }
- /*视浏览器情况采用最快的异步回调(在avalon.ready里,还有一个分支,用于处理IE6-9)*/
- avalon.nextTick = window.setImmediate ? setImmediate.bind(window) : function(callback) {
- setTimeout(callback, 0) //IE10-11 or W3C
- }
- /*********************************************************************
- * modelFactory *
- **********************************************************************/
- var VMODELS = avalon.vmodels = {}
- avalon.define = function(id, factory) {
- if (VMODELS[id]) {
- log("warning: " + id + " 已经存在于avalon.vmodels中")
- }
- var scope = {
- $watch: noop
- }
- factory(scope) //得到所有定义
- var model = modelFactory(scope) //偷天换日,将scope换为model
- stopRepeatAssign = true
- factory(model)
- stopRepeatAssign = false
- model.$id = id
- return VMODELS[id] = model
- }
- function modelFactory(scope, model) {
- if (Array.isArray(scope)) {
- var arr = scope.concat()
- scope.length = 0
- var collection = Collection(scope)
- collection.push.apply(collection, arr)
- return collection
- }
- if (typeof scope.nodeType === "number") {
- return scope
- }
- var vmodel = {} //要返回的对象
- model = model || {} //放置$model上的属性
- var accessingProperties = {} //监控属性
- var normalProperties = {} //普通属性
- var computedProperties = [] //计算属性
- var watchProperties = arguments[2] || {} //强制要监听的属性
- var skipArray = scope.$skipArray //要忽略监控的属性
- for (var i = 0, name; name = skipProperties[i++]; ) {
- if (typeof name !== "string") {
- log("warning:$skipArray[" + name + "] must be a string")
- }
- delete scope[name]
- normalProperties[name] = true
- }
- if (Array.isArray(skipArray)) {
- for (var i = 0, name; name = skipArray[i++]; ) {
- normalProperties[name] = true
- }
- }
- for (var i in scope) {
- loopModel(i, scope[i], model, normalProperties, accessingProperties, computedProperties, watchProperties)
- }
- vmodel = defineProperties(vmodel, descriptorFactory(accessingProperties), normalProperties) //生成一个空的ViewModel
- for (var name in normalProperties) {
- vmodel[name] = normalProperties[name]
- }
- watchProperties.vmodel = vmodel
- vmodel.$model = model
- vmodel.$events = {}
- vmodel.$id = generateID()
- vmodel.$accessors = accessingProperties
- vmodel[subscribers] = []
- for (var i in Observable) {
- var fn = Observable[i]
- if (!W3C) { //在IE6-8下,VB对象的方法里的this并不指向自身,需要用bind处理一下
- fn = fn.bind(vmodel)
- }
- vmodel[i] = fn
- }
- vmodel.hasOwnProperty = function(name) {
- return name in vmodel.$model
- }
- for (var i = 0, fn; fn = computedProperties[i++]; ) { //最后强逼计算属性 计算自己的值
- Registry[expose] = fn
- fn()
- collectSubscribers(fn)
- delete Registry[expose]
- }
- return vmodel
- }
- var skipProperties = String("$id,$watch,$unwatch,$fire,$events,$model,$skipArray,$accessors," + subscribers).match(rword)
- var isEqual = Object.is || function(v1, v2) {
- if (v1 === 0 && v2 === 0) {
- return 1 / v1 === 1 / v2
- } else if (v1 !== v1) {
- return v2 !== v2
- } else {
- return v1 === v2
- }
- }
- function safeFire(a, b, c, d) {
- if (a.$events) {
- Observable.$fire.call(a, b, c, d)
- }
- }
- var descriptorFactory = W3C ? function(obj) {
- var descriptors = {}
- for (var i in obj) {
- descriptors[i] = {
- get: obj[i],
- set: obj[i],
- enumerable: true,
- configurable: true
- }
- }
- return descriptors
- } : function(a) {
- return a
- }
- function loopModel(name, val, model, normalProperties, accessingProperties, computedProperties, watchProperties) {
- model[name] = val
- if (normalProperties[name] || (val && val.nodeType)) { //如果是元素节点或在全局的skipProperties里或在当前的$skipArray里
- return normalProperties[name] = val
- }
- if (name.charAt(0) === "$" && !watchProperties[name]) { //如果是$开头,并且不在watchProperties里
- return normalProperties[name] = val
- }
- var valueType = getType(val)
- if (valueType === "function") { //如果是函数,也不用监控
- return normalProperties[name] = val
- }
- var accessor, oldArgs
- if (valueType === "object" && typeof val.get === "function" && Object.keys(val).length <= 2) {
- var setter = val.set,
- getter = val.get
- accessor = function(newValue) { //创建计算属性,因变量,基本上由其他监控属性触发其改变
- var vmodel = watchProperties.vmodel
- var value = model[name],
- preValue = value
- if (arguments.length) {
- if (stopRepeatAssign) {
- return
- }
- if (typeof setter === "function") {
- var backup = vmodel.$events[name]
- vmodel.$events[name] = [] //清空回调,防止内部冒泡而触发多次$fire
- setter.call(vmodel, newValue)
- vmodel.$events[name] = backup
- }
- if (!isEqual(oldArgs, newValue)) {
- oldArgs = newValue
- newValue = model[name] = getter.call(vmodel) //同步$model
- withProxyCount && updateWithProxy(vmodel.$id, name, newValue) //同步循环绑定中的代理VM
- notifySubscribers(accessor) //通知顶层改变
- safeFire(vmodel, name, newValue, preValue) //触发$watch回调
- }
- } else {
- if (avalon.openComputedCollect) { // 收集视图刷新函数
- collectSubscribers(accessor)
- }
- newValue = model[name] = getter.call(vmodel)
- if (!isEqual(value, newValue)) {
- oldArgs = void 0
- safeFire(vmodel, name, newValue, preValue)
- }
- return newValue
- }
- }
- computedProperties.push(accessor)
- } else if (rcomplexType.test(valueType)) {
- accessor = function(newValue) { //子ViewModel或监控数组
- var realAccessor = accessor.$vmodel,
- preValue = realAccessor.$model
- if (arguments.length) {
- if (stopRepeatAssign) {
- return
- }
- if (!isEqual(preValue, newValue)) {
- newValue = accessor.$vmodel = updateVModel(realAccessor, newValue, valueType)
- var fn = rebindings[newValue.$id]
- fn && fn() //更新视图
- var parent = watchProperties.vmodel
- model[name] = newValue.$model //同步$model
- notifySubscribers(realAccessor) //通知顶层改变
- safeFire(parent, name, model[name], preValue) //触发$watch回调
- }
- } else {
- collectSubscribers(realAccessor) //收集视图函数
- return realAccessor
- }
- }
- accessor.$vmodel = val.$model ? val : modelFactory(val, val)
- model[name] = accessor.$vmodel.$model
- } else {
- accessor = function(newValue) { //简单的数据类型
- var preValue = model[name]
- if (arguments.length) {
- if (!isEqual(preValue, newValue)) {
- model[name] = newValue //同步$model
- var vmodel = watchProperties.vmodel
- withProxyCount && updateWithProxy(vmodel.$id, name, newValue) //同步循环绑定中的代理VM
- notifySubscribers(accessor) //通知顶层改变
- safeFire(vmodel, name, newValue, preValue) //触发$watch回调
- }
- } else {
- collectSubscribers(accessor) //收集视图函数
- return preValue
- }
- }
- model[name] = val
- }
- accessor[subscribers] = [] //订阅者数组
- accessingProperties[name] = accessor
- }
- //with绑定生成的代理对象储存池
- var withProxyPool = {}
- var withProxyCount = 0
- var rebindings = {}
- function updateWithProxy($id, name, val) {
- var pool = withProxyPool[$id]
- if (pool && pool[name]) {
- pool[name].$val = val
- }
- }
- function updateVModel(a, b, valueType) {
- //a为原来的VM, b为新数组或新对象
- if (valueType === "array") {
- if (!Array.isArray(b)) {
- return a //fix https://github.com/RubyLouvre/avalon/issues/261
- }
- var bb = b.concat()
- a.clear()
- a.push.apply(a, bb)
- return a
- } else {
- var iterators = a[subscribers] || []
- if (withProxyPool[a.$id]) {
- withProxyCount--
- delete withProxyPool[a.$id]
- }
- var ret = modelFactory(b)
- rebindings[ret.$id] = function(data) {
- while (data = iterators.shift()) {
- (function(el) {
- if (el.type) { //重新绑定
- avalon.nextTick(function() {
- el.rollback && el.rollback() //还原 ms-with ms-on
- bindingHandlers[el.type](el, el.vmodels)
- })
- }
- })(data)
- }
- delete rebindings[ret.$id]
- }
- return ret
- }
- }
- //===================修复浏览器对Object.defineProperties的支持=================
- var defineProperty = Object.defineProperty
- //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
- try {
- defineProperty({}, "_", {
- value: "x"
- })
- var defineProperties = Object.defineProperties
- } catch (e) {
- if ("__defineGetter__" in avalon) {
- defineProperty = function(obj, prop, desc) {
- if ('value' in desc) {
- obj[prop] = desc.value
- }
- if ("get" in desc) {
- obj.__defineGetter__(prop, desc.get)
- }
- if ('set' in desc) {
- obj.__defineSetter__(prop, desc.set)
- }
- return obj
- }
- defineProperties = function(obj, descs) {
- for (var prop in descs) {
- if (descs.hasOwnProperty(prop)) {
- defineProperty(obj, prop, descs[prop])
- }
- }
- return obj
- }
- }
- }
- //IE6-8使用VBScript类的set get语句实现
- if (!defineProperties && window.VBArray) {
- window.execScript([
- "Function parseVB(code)",
- "\tExecuteGlobal(code)",
- "End Function",
- "Dim VBClassBodies",
- "Set VBClassBodies=CreateObject(\"Scripting.Dictionary\")",
- "Function findOrDefineVBClass(name,body)",
- "\tDim found",
- "\tfound=\"\"",
- "\tFor Each key in VBClassBodies",
- "\t\tIf body=VBClassBodies.Item(key) Then",
- "\t\t\tfound=key",
- "\t\t\tExit For",
- "\t\tEnd If",
- "\tnext",
- "\tIf found=\"\" Then",
- "\t\tparseVB(\"Class \" + name + body)",
- "\t\tVBClassBodies.Add name, body",
- "\t\tfound=name",
- "\tEnd If",
- "\tfindOrDefineVBClass=found",
- "End Function"
- ].join("\n"), "VBScript")
- function VBMediator(accessingProperties, name, value) {
- var accessor = accessingProperties[name]
- if (typeof accessor == "function") {
- if (arguments.length === 3) {
- accessor(value)
- } else {
- return accessor()
- }
- }
- }
- defineProperties = function(name, accessingProperties, normalProperties) {
- var className = "VBClass" + setTimeout("1"),
- buffer = []
- buffer.push(
- "\r\n\tPrivate [__data__], [__proxy__]",
- "\tPublic Default Function [__const__](d, p)",
- "\t\tSet [__data__] = d: set [__proxy__] = p",
- "\t\tSet [__const__] = 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
- for (name in normalProperties) {
- buffer.push("\tPublic [" + name + "]")
- }
- buffer.push("\tPublic [" + 'hasOwnProperty' + "]")
- //添加访问器属性
- for (name in accessingProperties) {
- if (!(name in normalProperties)) { //防止重复定义
- buffer.push(
- //由于不知对方会传入什么,因此set, let都用上
- "\tPublic Property Let [" + name + "](val" + expose + ")", //setter
- "\t\tCall [__proxy__]([__data__], \"" + name + "\", val" + expose + ")",
- "\tEnd Property",
- "\tPublic Property Set [" + name + "](val" + expose + ")", //setter
- "\t\tCall [__proxy__]([__data__], \"" + name + "\", val" + expose + ")",
- "\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 + "] = [__proxy__]([__data__],\"" + name + "\")",
- "\tIf Err.Number <> 0 Then",
- "\t\t[" + name + "] = [__proxy__]([__data__],\"" + name + "\")",
- "\tEnd If",
- "\tOn Error Goto 0",
- "\tEnd Property")
- }
- }
- buffer.push("End Class")
- var code = buffer.join("\r\n"),
- realClassName = window['findOrDefineVBClass'](className, code) //如果该VB类已定义,返回类名。否则用className创建一个新类。
- if (realClassName == className) {
- window.parseVB([
- "Function " + className + "Factory(a, b)", //创建实例并传入两个关键的参数
- "\tDim o",
- "\tSet o = (New " + className + ")(a, b)",
- "\tSet " + className + "Factory = o",
- "End Function"
- ].join("\r\n"))
- }
- var ret = window[realClassName + "Factory"](accessingProperties, VBMediator) //得到其产品
- return ret //得到其产品
- }
- }
- /*********************************************************************
- * ecma262 v5语法补丁 *
- **********************************************************************/
- if (!"司徒正美".trim) {
- var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g
- String.prototype.trim = function() {
- return this.replace(rtrim, "")
- }
- }
- var enumerables = "propertyIsEnumerable,isPrototypeOf,hasOwnProperty,toLocaleString,toString,valueOf,constructor".split(",")
- for (var i in {
- toString: 1
- }) {
- enumerables = false
- }
- if (!Object.keys) {
- Object.keys = function(obj) { //ecma262v5 15.2.3.14
- var result = []
- for (var key in obj)
- if (obj.hasOwnProperty(key)) {
- result.push(key)
- }
- if (enumerables && obj) {
- for (var i = 0; key = enumerables[i++]; ) {
- if (obj.hasOwnProperty(key)) {
- result.push(key)
- }
- }
- }
- return result
- }
- }
- if (!Array.isArray) {
- Array.isArray = function(a) {
- return a && getType(a) === "array"
- }
- }
- if (!noop.bind) {
- Function.prototype.bind = function(scope) {
- if (arguments.length < 2 && scope === void 0)
- return this
- var fn = this,
- argv = arguments
- return function() {
- var args = [],
- i
- for (i = 1; i < argv.length; i++)
- args.push(argv[i])
- for (i = 0; i < arguments.length; i++)
- args.push(arguments[i])
- return fn.apply(scope, args)
- }
- }
- }
- function iterator(vars, body, ret) {
- var fun = 'for(var ' + vars + 'i=0,n = this.length; i < n; i++){' + body.replace('_', '((i in this) && fn.call(scope,this[i],i,this))') + '}' + ret
- return Function("fn,scope", fun)
- }
- if (!rnative.test([].map)) {
- avalon.mix(ap, {
- //定位操作,返回数组中第一个等于给定参数的元素的索引值。
- indexOf: function(item, index) {
- var n = this.length,
- i = ~~index
- if (i < 0)
- i += n
- for (; i < n; i++)
- if (this[i] === item)
- return i
- return -1
- },
- //定位操作,同上,不过是从后遍历。
- lastIndexOf: function(item, index) {
- var n = this.length,
- i = index == null ? n - 1 : index
- if (i < 0)
- i = Math.max(0, n + i)
- for (; i >= 0; i--)
- if (this[i] === item)
- return i
- return -1
- },
- //迭代操作,将数组的元素挨个儿传入一个函数中执行。Prototype.js的对应名字为each。
- forEach: iterator("", '_', ""),
- //迭代类 在数组中的每个项上运行一个函数,如果此函数的值为真,则此元素作为新数组的元素收集起来,并返回新数组
- filter: iterator('r=[],j=0,', 'if(_)r[j++]=this[i]', 'return r'),
- //收集操作,将数组的元素挨个儿传入一个函数中执行,然后把它们的返回值组成一个新数组返回。Prototype.js的对应名字为collect。
- map: iterator('r=[],', 'r[i]=_', 'return r'),
- //只要数组中有一个元素满足条件(放进给定函数返回true),那么它就返回true。Prototype.js的对应名字为any。
- some: iterator("", 'if(_)return true', 'return false'),
- //只有数组中的元素都满足条件(放进给定函数返回true),它才返回true。Prototype.js的对应名字为all。
- every: iterator("", 'if(!_)return false', 'return true')
- })
- }
- function fixContains(a, b) {
- if (b) {
- while ((b = b.parentNode)) {
- if (b === a) {
- return true;
- }
- }
- }
- return false;
- }
- if (!root.contains) { //safari5+是把contains方法放在Element.prototype上而不是Node.prototype
- Node.prototype.contains = function(arg) {
- return !!(this.compareDocumentPosition(arg) & 16)
- }
- }
- if (!DOC.contains) { //IE6-11的文档对象没有contains
- DOC.contains = function(b) {
- return fixContains(this, b)
- }
- }
- if (!root.outerHTML && window.HTMLElement) { //firefox 到11时才有outerHTML
- HTMLElement.prototype.__defineGetter__("outerHTML", function() {
- cinerator.textContent = ""
- cinerator.appendChild(this)
- var str = this.innerHTML
- cinerator.textContent = ""
- return str
- });
- }
- /*********************************************************************
- * 配置模块 *
- **********************************************************************/
- function kernel(settings) {
- for (var p in settings) {
- if (!ohasOwn.call(settings, p))
- continue
- var val = settings[p]
- if (typeof kernel.plugins[p] === "function") {
- kernel.plugins[p](val)
- } else if (typeof kernel[p] === "object") {
- avalon.mix(kernel[p], val)
- } else {
- kernel[p] = val
- }
- }
- return this
- }
- var openTag, closeTag, rexpr, rexprg, rbind, rregexp = /[-.*+?^${}()|[\]\/\\]/g
- function escapeRegExp(target) {
- //http://stevenlevithan.com/regex/xregexp/
- //将字符串安全格式化为正则表达式的源码
- return (target + "").replace(rregexp, "\\$&")
- }
- var plugins = {
- debug: function(open) {
- if (window.console) {
- if (!console._log) {
- console._log = console.log
- }
- console.log = open ? console._log : noop
- }
- },
- loader: function(builtin) {
- window.define = builtin ? innerRequire.define : otherDefine
- window.require = builtin ? innerRequire : otherRequire
- },
- interpolate: function(array) {
- openTag = array[0]
- closeTag = array[1]
- if (openTag === closeTag) {
- throw new SyntaxError("openTag!==closeTag")
- } else if (array + "" === "<!--,-->") {
- kernel.commentInterpolate = true
- } else {
- var test = openTag + "test" + closeTag
- cinerator.innerHTML = test
- if (cinerator.innerHTML !== test && cinerator.innerHTML.indexOf("<") >= 0) {
- throw new SyntaxError("此定界符不合法")
- }
- cinerator.innerHTML = ""
- }
- var o = escapeRegExp(openTag),
- c = escapeRegExp(closeTag)
- rexpr = new RegExp(o + "(.*?)" + c)
- rexprg = new RegExp(o + "(.*?)" + c, "g")
- rbind = new RegExp(o + ".*?" + c + "|\\sms-")
- }
- }
- kernel.plugins = plugins
- kernel.plugins['interpolate'](["{{", "}}"])
- kernel.paths = {}
- kernel.shim = {}
- kernel.maxRepeatSize = 100
- avalon.config = kernel
- /*********************************************************************
- * DOM API的高级封装 *
- **********************************************************************/
- function hyphen(target) {
- //转换为连字符线风格
- return target.replace(/([a-z\d])([A-Z]+)/g, "$1-$2").toLowerCase()
- }
- function camelize(target) {
- //转换为驼峰风格
- if (target.indexOf("-") < 0 && target.indexOf("_") < 0) {
- return target //提前判断,提高getStyle等的效率
- }
- return target.replace(/[-_][^-_]/g, function(match) {
- return match.charAt(1).toUpperCase()
- })
- }
- var rnospaces = /\S+/g
- avalon.fn.mix({
- hasClass: function(cls) {
- var node = this[0] || {}
- if (node.nodeType === 1 && node.className) {
- return (" " + node.className + " ").indexOf(" " + cls + " ") > -1
- }
- return false
- },
- addClass: function(cls) {
- var node = this[0] || {}
- if (cls && typeof cls === "string" && node.nodeType === 1) {
- if (!node.className) {
- node.className = cls
- } else {
- var arr = node.className.match(rnospaces)
- cls.replace(rnospaces, function(a) {
- if (arr.indexOf(a) === -1) {
- arr.push(a)
- }
- })
- node.className = arr.join(" ")
- }
- }
- return this
- },
- removeClass: function(cls) {
- var node = this[0] || {}
- if (cls && typeof cls > "o" && node.nodeType === 1 && node.className) {
- var classNames = (cls || "").match(rnospaces) || []
- var cl = classNames.length
- var set = " " + node.className.match(rnospaces).join(" ") + " "
- for (var c = 0; c < cl; c++) {
- set = set.replace(" " + classNames[c] + " ", " ")
- }
- node.className = set.slice(1, set.length - 1)
- }
- return this
- },
- toggleClass: function(value, stateVal) {
- var state = stateVal,
- className, i = 0
- var classNames = value.match(rnospaces) || []
- var isBool = typeof stateVal === "boolean"
- while ((className = classNames[i++])) {
- state = isBool ? state : !this.hasClass(className)
- this[state ? "addClass" : "removeClass"](className)
- }
- return this
- },
- attr: function(name, value) {
- if (arguments.length === 2) {
- this[0].setAttribute(name, value)
- return this
- } else {
- return this[0].getAttribute(name)
- }
- },
- data: function(name, value) {
- name = "data-" + hyphen(name || "")
- switch (arguments.length) {
- case 2:
- this.attr(name, value)
- return this
- case 1:
- var val = this.attr(name)
- return parseData(val)
- case 0:
- var ret = {}
- ap.forEach.call(this[0].attributes, function(attr) {
- if (attr) {
- name = attr.name
- if (!name.indexOf("data-")) {
- name = camelize(name.slice(5))
- ret[name] = parseData(attr.value)
- }
- }
- })
- return ret
- }
- },
- removeData: function(name) {
- name = "data-" + hyphen(name)
- this[0].removeAttribute(name)
- return this
- },
- css: function(name, value) {
- if (avalon.isPlainObject(name)) {
- for (var i in name) {
- avalon.css(this, i, name[i])
- }
- } else {
- var ret = avalon.css(this, name, value)
- }
- return ret !== void 0 ? ret : this
- },
- position: function() {
- var offsetParent, offset,
- elem = this[0],
- parentOffset = {
- top: 0,
- left: 0
- }
- if (!elem) {
- return
- }
- if (this.css("position") === "fixed") {
- offset = elem.getBoundingClientRect()
- } else {
- offsetParent = this.offsetParent() //得到真正的offsetParent
- offset = this.offset() // 得到正确的offsetParent
- if (offsetParent[0].tagName !== "HTML") {
- parentOffset = offsetParent.offset()
- }
- parentOffset.top += avalon.css(offsetParent[0], "borderTopWidth", true)
- parentOffset.left += avalon.css(offsetParent[0], "borderLeftWidth", true)
- }
- return {
- top: offset.top - parentOffset.top - avalon.css(elem, "marginTop", true),
- left: offset.left - parentOffset.left - avalon.css(elem, "marginLeft", true)
- }
- },
- offsetParent: function() {
- var offsetParent = this[0].offsetParent || root
- while (offsetParent && (offsetParent.tagName !== "HTML") && avalon.css(offsetParent, "position") === "static") {
- offsetParent = offsetParent.offsetParent
- }
- return avalon(offsetParent || root)
- },
- bind: function(type, fn, phase) {
- if (this[0]) { //此方法不会链
- return avalon.bind(this[0], type, fn, phase)
- }
- },
- unbind: function(type, fn, phase) {
- if (this[0]) {
- avalon.unbind(this[0], type, fn, phase)
- }
- return this
- },
- val: function(value) {
- var node = this[0]
- if (node && node.nodeType === 1) {
- var get = arguments.length === 0
- var access = get ? ":get" : ":set"
- var fn = valHooks[getValType(node) + access]
- if (fn) {
- var val = fn(node, value)
- } else if (get) {
- return (node.value || "").replace(/\r/g, "")
- } else {
- node.value = value
- }
- }
- return get ? val : this
- }
- })
- function parseData(data) {
- try {
- data = data === "true" ? true :
- data === "false" ? false :
- data === "null" ? null : +data + "" === data ? +data : rbrace.test(data) ? parseJSON(data) : data
- } catch (e) {
- }
- return data
- }
- var rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,
- rvalidchars = /^[\],:{}\s]*$/,
- rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
- rvalidescape = /\\(?:["\\\/bfnrt]|u[\da-fA-F]{4})/g,
- rvalidtokens = /"[^"\\\r\n]*"|true|false|null|-?(?:\d+\.|)\d+(?:[eE][+-]?\d+|)/g
- var parseJSON = window.JSON ? JSON.parse : function(data) {
- if (typeof data === "string") {
- data = data.trim();
- if (data) {
- if (rvalidchars.test(data.replace(rvalidescape, "@")
- .replace(rvalidtokens, "]")
- .replace(rvalidbraces, ""))) {
- return (new Function("return " + data))();
- }
- }
- avalon.error("Invalid JSON: " + data);
- }
- }
- //生成avalon.fn.scrollLeft, avalon.fn.scrollTop方法
- avalon.each({
- scrollLeft: "pageXOffset",
- scrollTop: "pageYOffset"
- }, function(method, prop) {
- avalon.fn[method] = function(val) {
- var node = this[0] || {}, win = getWindow(node),
- top = method === "scrollTop"
- if (!arguments.length) {
- return win ? (prop in win) ? win[prop] : root[method] : node[method]
- } else {
- if (win) {
- win.scrollTo(!top ? val : avalon(win).scrollLeft(), top ? val : avalon(win).scrollTop())
- } else {
- node[method] = val
- }
- }
- }
- })
- function getWindow(node) {
- return node.window && node.document ? node : node.nodeType === 9 ? node.defaultView || node.parentWindow : false;
- }
- //=============================css相关=======================
- var cssHooks = avalon.cssHooks = {}
- var prefixes = ["", "-webkit-", "-o-", "-moz-", "-ms-"]
- var cssMap = {
- "float": "cssFloat",
- background: "backgroundColor"
- }
- avalon.cssNumber = oneObject("columnCount,order,fillOpacity,fontWeight,lineHeight,opacity,orphans,widows,zIndex,zoom")
- avalon.cssName = function(name, host, camelCase) {
- if (cssMap[name]) {
- return cssMap[name]
- }
- host = host || root.style
- for (var i = 0, n = prefixes.length; i < n; i++) {
- camelCase = camelize(prefixes[i] + name)
- if (camelCase in host) {
- return (cssMap[name] = camelCase)
- }
- }
- return null
- }
- cssHooks["@:set"] = function(node, name, value) {
- try { //node.style.width = NaN;node.style.width = "xxxxxxx";node.style.width = undefine 在旧式IE下会抛异常
- node.style[name] = value
- } catch (e) {
- }
- }
- if (window.getComputedStyle) {
- cssHooks["@:get"] = function(node, name) {
- if(!node || !node.style){
- throw new Error("getComputedStyle要求传入一个节点 "+node)
- }
- var ret, styles = getComputedStyle(node, null)
- if (styles) {
- ret = name === "filter" ? styles.getPropertyValue(name) : styles[name]
- if (ret === "") {
- ret = node.style[name] //其他浏览器需要我们手动取内联样式
- }
- }
- return ret
- }
- cssHooks["opacity:get"] = function(node) {
- var ret = cssHooks["@:get"](node, "opacity")
- return ret === "" ? "1" : ret
- }
- } else {
- var rnumnonpx = /^-?(?:\d*\.)?\d+(?!px)[^\d\s]+$/i
- var rposition = /^(top|right|bottom|left)$/
- var ie8 = !!window.XDomainRequest
- var salpha = "DXImageTransform.Microsoft.Alpha"
- var border = {
- thin: ie8 ? '1px' : '2px',
- medium: ie8 ? '3px' : '4px',
- thick: ie8 ? '5px' : '6px'
- }
- cssHooks["@:get"] = function(node, name) {
- //取得精确值,不过它有可能是带em,pc,mm,pt,%等单位
- var currentStyle = node.currentStyle
- var ret = currentStyle[name]
- if ((rnumnonpx.test(ret) && !rposition.test(ret))) {
- //①,保存原有的style.left, runtimeStyle.left,
- var style = node.style,
- left = style.left,
- rsLeft = node.runtimeStyle.left
- //②由于③处的style.left = xxx会影响到currentStyle.left,
- //因此把它currentStyle.left放到runtimeStyle.left,
- //runtimeStyle.left拥有最高优先级,不会style.left影响
- node.runtimeStyle.left = currentStyle.left
- //③将精确值赋给到style.left,然后通过IE的另一个私有属性 style.pixelLeft
- //得到单位为px的结果;fontSize的分支见http://bugs.jquery.com/ticket/760
- style.left = name === 'fontSize' ? '1em' : (ret || 0)
- ret = style.pixelLeft + "px"
- //④还原 style.left,runtimeStyle.left
- style.left = left
- node.runtimeStyle.left = rsLeft
- }
- if (ret === "medium") {
- name = name.replace("Width", "Style")
- //border width 默认值为medium,即使其为0"
- if (currentStyle[name] === "none") {
- ret = "0px"
- }
- }
- return ret === "" ? "auto" : border[ret] || ret
- }
- cssHooks["opacity:set"] = function(node, name, value) {
- node.style.filter = 'alpha(opacity=' + value * 100 + ')'
- node.style.zoom = 1
- }
- cssHooks["opacity:get"] = function(node) {
- //这是最快的获取IE透明值的方式,不需要动用正则了!
- var alpha = node.filters.alpha || node.filters[salpha],
- op = alpha ? alpha.opacity : 100
- return (op / 100) + "" //确保返回的是字符串
- }
- }
- "top,left".replace(rword, function(name) {
- cssHooks[name + ":get"] = function(node) {
- var computed = cssHooks["@:get"](node, name)
- return /px$/.test(computed) ? computed :
- avalon(node).position()[name] + "px"
- }
- })
- var cssShow = {
- position: "absolute",
- visibility: "hidden",
- display: "block"
- }
- var rdisplayswap = /^(none|table(?!-c[ea]).+)/
- function showHidden(node, array) {
- //http://www.cnblogs.com/rubylouvre/archive/2012/10/27/2742529.html
- if (node.offsetWidth <= 0) { //opera.offsetWidth可能小于0
- if (rdisplayswap.test(cssHooks["@:get"](node, "display"))) {
- var obj = {
- node: node
- }
- for (var name in cssShow) {
- obj[name] = node.style[name]
- node.style[name] = cssShow[name]
- }
- array.push(obj)
- }
- var parent = node.parentNode
- if (parent && parent.nodeType == 1) {
- showHidden(parent, array)
- }
- }
- }
- "Width,Height".replace(rword, function(name) {
- var method = name.toLowerCase(),
- clientProp = "client" + name,
- scrollProp = "scroll" + name,
- offsetProp = "offset" + name
- cssHooks[method + ":get"] = function(node, which, override) {
- var boxSizing = "content-box"
- if (typeof override === "string") {
- boxSizing = override
- }
- which = name === "Width" ? ["Left", "Right"] : ["Top", "Bottom"]
- switch (boxSizing) {
- case "content-box":
- return node["client" + name] - avalon.css(node, "padding" + which[0], true) -
- avalon.css(node, "padding" + which[1], true)
- case "padding-box":
- return node["client" + name]
- case "border-box":
- return node["offset" + name]
- case "margin-box":
- return node["offset" + name] + avalon.css(node, "margin" + which[0], true) +
- avalon.css(node, "margin" + which[1], true)
- }
- }
- cssHooks[method + "&get"] = function(node) {
- var hidden = [];
- showHidden(node, hidden);
- var val = cssHooks[method + ":get"](node)
- for (var i = 0, obj; obj = hidden[i++]; ) {
- node = obj.node
- for (var n in obj) {
- if (typeof obj[n] === "string") {
- node.style[n] = obj[n]
- }
- }
- }
- return val;
- }
- avalon.fn[method] = function(value) { //会忽视其display
- var node = this[0]
- if (arguments.length === 0) {
- if (node.setTimeout) { //取得窗口尺寸,IE9后可以用node.innerWidth /innerHeight代替
- return node["inner" + name] || node.document.documentElement[clientProp]
- }
- if (node.nodeType === 9) { //取得页面尺寸
- var doc = node.documentElement
- //FF chrome html.scrollHeight< body.scrollHeight
- //IE 标准模式 : html.scrollHeight> body.scrollHeight
- //IE 怪异模式 : html.scrollHeight 最大等于可视窗口多一点?
- return Math.max(node.body[scrollProp], doc[scrollProp], node.body[offsetProp], doc[offsetProp], doc[clientProp])
- }
- return cssHooks[method + "&get"](node)
- } else {
- return this.css(method, value)
- }
- }
- avalon.fn["inner" + name] = function() {
- return cssHooks[method + ":get"](this[0], void 0, "padding-box")
- }
- avalon.fn["outer" + name] = function(includeMargin) {
- return cssHooks[method + ":get"](this[0], void 0, includeMargin === true ? "margin-box" : "border-box")
- }
- })
- avalon.fn.offset = function() { //取得距离页面左右角的坐标
- var node = this[0], box = {
- left: 0,
- top: 0
- }
- if (!node || !node.tagName || !node.ownerDocument) {
- return box
- }
- var doc = node.ownerDocument,
- body = doc.body,
- root = doc.documentElement,
- win = doc.defaultView || doc.parentWindow
- if (!avalon.contains(root, node)) {
- return box
- }
- //http://hkom.blog1.fc2.com/?mode=m&no=750 body的偏移量是不包含margin的
- //我们可以通过getBoundingClientRect来获得元素相对于client的rect.
- //http://msdn.microsoft.com/en-us/library/ms536433.aspx
- if (typeof node.getBoundingClientRect !== "undefined") {
- box = node.getBoundingClientRect() // BlackBerry 5, iOS 3 (original iPhone)
- }
- //chrome/IE6: body.scrollTop, firefox/other: root.scrollTop
- var clientTop = root.clientTop || body.clientTop,
- clientLeft = root.clientLeft || body.clientLeft,
- scrollTop = Math.max(win.pageYOffset || 0, root.scrollTop, body.scrollTop),
- scrollLeft = Math.max(win.pageXOffset || 0, root.scrollLeft, body.scrollLeft)
- // 把滚动距离加到left,top中去。
- // IE一些版本中会自动为HTML元素加上2px的border,我们需要去掉它
- // http://msdn.microsoft.com/en-us/library/ms533564(VS.85).aspx
- return {
- top: box.top + scrollTop - clientTop,
- left: box.left + scrollLeft - clientLeft
- }
- }
- //==================================val相关============================
- function getValType(el) {
- var ret = el.tagName.toLowerCase()
- return ret === "input" && /checkbox|radio/.test(el.type) ? "checked" : ret
- }
- var roption = /^<option(?:\s+\w+(?:\s*=\s*(?:"[^"]*"|'[^']*'|[^\s>]+))?)*\s+value[\s=]/i
- var valHooks = {
- "option:get": function(node) {
- //在IE11及W3C,如果没有指定value,那么node.value默认为node.text(存在trim作),但IE9-10则是取innerHTML(没trim操作)
- if (node.hasAttribute) {
- return node.hasAttribute("value") ? node.value : node.text.trim()
- }
- //specified并不可靠,因此通过分析outerHTML判定用户有没有显示定义value
- return roption.test(node.outerHTML) ? node.value : node.text
- },
- "select:get": function(node, value) {
- var option, options = node.options,
- index = node.selectedIndex,
- getter = valHooks["option:get"],
- one = node.type === "select-one" || index < 0,
- values = one ? null : [],
- max = one ? index + 1 : options.length,
- i = index < 0 ? max : one ? index : 0
- for (; i < max; i++) {
- option = options[i]
- //旧式IE在reset后不会改变selected,需要改用i === index判定
- //我们过滤所有disabled的option元素,但在safari5下,如果设置select为disable,那么其所有孩子都disable
- //因此当一个元素为disable,需要检测其是否显式设置了disable及其父节点的disable情况
- if ((option.selected || i === index) && !option.disabled) {
- value = getter(option)
- if (one) {
- return value
- }
- //收集所有selected值组成数组返回
- values.push(value)
- }
- }
- return values
- },
- "select:set": function(node, values, optionSet) {
- values = [].concat(values) //强制转换为数组
- var getter = valHooks["option:get"]
- for (var i = 0, el; el = node.options[i++]; ) {
- if ((el.selected = values.indexOf(getter(el)) >= 0)) {
- optionSet = true
- }
- }
- if (!optionSet) {
- node.selectedIndex = -1
- }
- }
- }
- /************************************************************************
- * parseHTML *
- ************************************************************************/
- var rtagName = /<([\w:]+)/,
- //取得其tagName
- rxhtml = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/ig,
- rcreate = W3C ? /[^\d\D]/ : /(<(?:script|link|style|meta|noscript))/ig,
- scriptTypes = oneObject("text/javascript", "text/ecmascript", "application/ecmascript", "application/javascript", "text/vbscript"),
- //需要处理套嵌关系的标签
- rnest = /<(?:tb|td|tf|th|tr|col|opt|leg|cap|area)/
- //parseHTML的辅助变量
- var tagHooks = {
- area: [1, "<map>"],
- param: [1, "<object>"],
- col: [2, "<table><tbody></tbody><colgroup>", "</table>"],
- legend: [1, "<fieldset>"],
- option: [1, "<select multiple='multiple'>"],
- thead: [1, "<table>", "</table>"],
- tr: [2, "<table><tbody>"],
- td: [3, "<table><tbody><tr>"],
- //IE6-8在用innerHTML生成节点时,不能直接创建no-scope元素与HTML5的新标签
- _default: W3C ? [0, ""] : [1, "X<div>"] //div可以不用闭合
- }
- tagHooks.optgroup = tagHooks.option
- tagHooks.tbody = tagHooks.tfoot = tagHooks.colgroup = tagHooks.caption = tagHooks.thead
- tagHooks.th = tagHooks.td
- var script = DOC.createElement("script")
- avalon.parseHTML = function(html) {
- if (typeof html !== "string") {
- html = html + ""
- }
- html = html.replace(rxhtml, "<$1></$2>").trim()
- var tag = (rtagName.exec(html) || ["", ""])[1].toLowerCase(),
- //取得其标签名
- wrap = tagHooks[tag] || tagHooks._default,
- fragment = hyperspace.cloneNode(false),
- wrapper = cinerator,
- firstChild, neo
- if (!W3C) { //fix IE
- html = html.replace(rcreate, "<br class=msNoScope>$1") //在link style script等标签之前添加一个补丁
- }
- wrapper.innerHTML = wrap[1] + html + (wrap[2] || "")
- var els = wrapper.getElementsByTagName("script")
- if (els.length) { //使用innerHTML生成的script节点不会发出请求与执行text属性
- for (var i = 0, el; el = els[i++]; ) {
- if (!el.type || scriptTypes[el.type]) { //如果script节点的MIME能让其执行脚本
- neo = script.cloneNode(false) //FF不能省略参数
- ap.forEach.call(el.attributes, function(attr) {
- if (attr && attr.specified) {
- neo[attr.name] = attr.value //复制其属性
- }
- })
- neo.text = el.text //必须指定,因为无法在attributes中遍历出来
- el.parentNode.replaceChild(neo, el) //替换节点
- }
- }
- }
- //移除我们为了符合套嵌关系而添加的标签
- for (i = wrap[0]; i--; wrapper = wrapper.lastChild) {
- }
- if (!W3C) { //fix IE
- for (els = wrapper["getElementsByTagName"]("br"), i = 0; el = els[i++]; ) {
- if (el.className && el.className === "msNoScope") {
- el.parentNode.removeChild(el)
- }
- }
- }
- while (firstChild = wrapper.firstChild) { // 将wrapper上的节点转移到文档碎片上!
- fragment.appendChild(firstChild)
- }
- return fragment
- }
- avalon.innerHTML = function(node, html) {
- if (!W3C && (!rcreate.test(html) && !rnest.test(html))) {
- try {
- node.innerHTML = html
- return
- } catch (e) {
- }
- }
- var a = this.parseHTML(html)
- this.clearHTML(node).appendChild(a)
- }
- avalon.clearHTML = function(node) {
- expelFromSanctuary(node)
- return node
- }
- /*********************************************************************
- * Observable *
- **********************************************************************/
- var Observable = {
- $watch: function(type, callback) {
- if (typeof callback === "function") {
- var callbacks = this.$events[type]
- if (callbacks) {
- callbacks.push(callback)
- } else {
- this.$events[type] = [callback]
- }
- } else { //重新开始监听此VM的第一重简单属性的变动
- this.$events = this.$watch.backup
- }
- return this
- },
- $unwatch: function(type, callback) {
- var n = arguments.length
- if (n === 0) { //让此VM的所有$watch回调无效化
- this.$watch.backup = this.$events
- this.$events = {}
- } else if (n === 1) {
- this.$events[type] = []
- } else {
- var callbacks = this.$events[type] || []
- var i = callbacks.length
- while (~--i < 0) {
- if (callbacks[i] === callback) {
- return callbacks.splice(i, 1)
- }
- }
- }
- return this
- },
- $fire: function(type) {
- var callbacks = this.$events[type] || []
- var all = this.$events.$all || []
- var args = aslice.call(arguments, 1)
- for (var i = 0, callback; callback = callbacks[i++]; ) {
- callback.apply(this, args)
- }
- for (var i = 0, callback; callback = all[i++]; ) {
- callback.apply(this, arguments)
- }
- }
- }
- /*********************************************************************
- * 依赖收集与触发 *
- **********************************************************************/
- function registerSubscriber(data, val) {
- Registry[expose] = data //暴光此函数,方便collectSubscribers收集
- avalon.openComputedCollect = true
- var fn = data.evaluator
- if (fn) { //如果是求值函数
- if (data.type === "duplex") {
- data.handler()
- } else {
- try {
- data.handler(fn.apply(0, data.args), data.element, data)
- } catch (e) {
- delete data.evaluator
- if (data.nodeType === 3) {
- if (kernel.commentInterpolate) {
- data.element.replaceChild(DOC.createComment(data.value), data.node)
- } else {
- data.node.data = openTag + data.value + closeTag
- }
- }
- log("warning:evaluator of [" + data.value + "] throws error!")
- }
- }
- } else { //如果是计算属性的accessor
- data()
- }
- avalon.openComputedCollect = false
- delete Registry[expose]
- }
- function collectSubscribers(accessor) { //收集依赖于这个访问器的订阅者
- if (Registry[expose]) {
- var list = accessor[subscribers]
- list && avalon.Array.ensure(list, Registry[expose]) //只有数组不存在此元素才push进去
- }
- }
- function notifySubscribers(accessor) { //通知依赖于这个访问器的订阅者更新自身
- var list = accessor[subscribers]
- if (list && list.length) {
- var args = aslice.call(arguments, 1)
- for (var i = list.length, fn; fn = list[--i]; ) {
- var el = fn.element,
- remove
- if (el && !avalon.contains(ifSanctuary, el)) {
- if (typeof el.sourceIndex == "number") { //IE6-IE11
- remove = el.sourceIndex === 0
- } else {
- remove = !avalon.contains(root, el)
- }
- }
- if (remove) { //如果它没有在DOM树
- list.splice(i, 1)
- log("debug: remove " + fn.name)
- } else if (typeof fn === "function") {
- fn.apply(0, args) //强制重新计算自身
- } else if (fn.getter) {
- fn.handler.apply(fn, args) //处理监控数组的方法
- } else {
- fn.handler(fn.evaluator.apply(0, fn.args || []), el, fn)
- }
- }
- }
- }
- /*********************************************************************
- * 扫描系统 *
- **********************************************************************/
- avalon.scan = function(elem, vmodel) {
- elem = elem || root
- var vmodels = vmodel ? [].concat(vmodel) : []
- scanTag(elem, vmodels)
- }
- //http://www.w3.org/TR/html5/syntax.html#void-elements
- var stopScan = oneObject("area,base,basefont,br,col,command,embed,hr,img,input,link,meta,param,source,track,wbr,noscript,script,style,textarea".toUpperCase())
- //确保元素的内容被完全扫描渲染完毕才调用回调
- var interval = W3C ? 15 : 50
- function checkScan(elem, callback) {
- var innerHTML = NaN,
- id = setInterval(function() {
- var currHTML = elem.innerHTML
- if (currHTML === innerHTML) {
- clearInterval(id)
- callback()
- } else {
- innerHTML = currHTML
- }
- }, interval)
- }
- function scanTag(elem, vmodels, node) {
- //扫描顺序 ms-skip(0) --> ms-important(1) --> ms-controller(2) --> ms-if(10) --> ms-repeat(100)
- //--> ms-if-loop(110) --> ms-attr(970) ...--> ms-each(1400)-->ms-with(1500)--〉ms-duplex(2000)垫后
- var a = elem.getAttribute(prefix + "skip")
- //#360 在旧式IE中 Object标签在引入Flash等资源时,可能出现没有getAttributeNode,innerHTML的情形
- if (!elem.getAttributeNode) {
- return log("warning " + elem.tagName + " no getAttributeNode method")
- }
- var b = elem.getAttributeNode(prefix + "important")
- var c = elem.getAttributeNode(prefix + "controller")
- if (typeof a === "string") {
- return
- } else if (node = b || c) {
- var newVmodel = VMODELS[node.value]
- if (!newVmodel) {
- return
- }
- //ms-important不包含父VM,ms-controller相反
- vmodels = node === b ? [newVmodel] : [newVmodel].concat(vmodels)
- elem.removeAttribute(node.name) //removeAttributeNode不会刷新[ms-controller]样式规则
- avalon(elem).removeClass(node.name)
- }
- scanAttr(elem, vmodels) //扫描特性节点
- }
- function scanNodes(parent, vmodels) {
- var node = parent.firstChild
- while (node) {
- var nextNode = node.nextSibling
- var nodeType = node.nodeType
- if (nodeType === 1) {
- scanTag(node, vmodels) //扫描元素节点
- } else if (nodeType === 3 && rexpr.test(node.data)) {
- scanText(node, vmodels) //扫描文本节点
- } else if (kernel.commentInterpolate && nodeType === 8 && !rexpr.test(node.nodeValue)) {
- scanText(node, vmodels) //扫描注释节点
- }
- node = nextNode
- }
- }
- function scanText(textNode, vmodels) {
- var bindings = []
- if (textNode.nodeType === 8) {
- var leach = []
- var value = trimFilter(textNode.nodeValue, leach)
- var token = {
- expr: true,
- value: value
- }
- if (leach.length) {
- token.filters = leach
- }
- var tokens = [token]
- } else {
- tokens = scanExpr(textNode.data)
- }
- if (tokens.length) {
- for (var i = 0, token; token = tokens[i++]; ) {
- var node = DOC.createTextNode(token.value) //将文本转换为文本节点,并替换原来的文本节点
- if (token.expr) {
- var filters = token.filters
- var binding = {
- type: "text",
- node: node,
- nodeType: 3,
- value: token.value,
- filters: filters
- }
- if (filters && filters.indexOf("html") !== -1) {
- avalon.Array.remove(filters, "html")
- binding.type = "html"
- binding.replaceNodes = [node]
- if (!filters.length) {
- delete bindings.filters
- }
- }
- bindings.push(binding) //收集带有插值表达式的文本
- }
- hyperspace.appendChild(node)
- }
- textNode.parentNode.replaceChild(hyperspace, textNode)
- if (bindings.length)
- executeBindings(bindings, vmodels)
- }
- }
- var rmsAttr = /ms-(\w+)-?(.*)/
- var priorityMap = {
- "if": 10,
- "repeat": 90,
- "widget": 110,
- "each": 1400,
- "with": 1500,
- "duplex": 2000,
- "on": 3000
- }
- var ons = oneObject("animationend,blur,change,input,click,dblclick,focus,keydown,keypress,keyup,mousedown,mouseenter,mouseleave,mousemove,mouseout,mouseover,mouseup,scroll")
- function scanAttr(elem, vmodels) {
- var attributes = getAttributes ? getAttributes(elem) : elem.attributes
- var bindings = [],
- msData = {},
- match
- for (var i = 0, attr; attr = attributes[i++]; ) {
- if (attr.specified) {
- if (match = attr.name.match(rmsAttr)) {
- //如果是以指定前缀命名的
- var type = match[1]
- var param = match[2] || ""
- msData[attr.name] = attr.value
- if (ons[type]) {
- param = type
- type = "on"
- }
- if (typeof bindingHandlers[type] === "function") {
- var binding = {
- type: type,
- param: param,
- element: elem,
- name: match[0],
- value: attr.value,
- priority: type in priorityMap ? priorityMap[type] : type.charCodeAt(0) * 10 + (Number(param) || 0)
- }
- if (type === "if" && param.indexOf("loop") > -1) {
- binding.priority += 100
- }
- if (vmodels.length) {
- bindings.push(binding)
- if (type === "widget") {
- elem.msData = elem.msData || msData
- }
- }
- }
- }
- }
- }
- bindings.sort(function(a, b) {
- return a.priority - b.priority
- })
- if (msData["ms-checked"] && msData["ms-duplex"]) {
- log("warning!一个元素上不能同时定义ms-checked与ms-duplex")
- }
- var firstBinding = bindings[0] || {}
- switch (firstBinding.type) {
- case "if":
- case "repeat":
- case "widget":
- executeBindings([firstBinding], vmodels)
- break
- default:
- executeBindings(bindings, vmodels)
- if (!stopScan[elem.tagName] && rbind.test(elem.innerHTML.replace(rlt, "<").replace(rgt, ">"))) {
- scanNodes(elem, vmodels) //扫描子孙元素
- }
- break;
- }
- if (elem.patchRepeat) {
- elem.patchRepeat()
- elem.patchRepeat = null
- }
- }
- //IE67下,在循环绑定中,一个节点如果是通过cloneNode得到,自定义属性的specified为false,无法进入里面的分支,
- //但如果我们去掉scanAttr中的attr.specified检测,一个元素会有80+个特性节点(因为它不区分固有属性与自定义属性),很容易卡死页面
- if (!"1" [0]) {
- var cacheAttr = createCache(512)
- var rattrs = /\s+(ms-[^=\s]+)(?:=("[^"]*"|'[^']*'|[^\s>]+))?/g,
- rquote = /^['"]/,
- rtag = /<\w+\b(?:(["'])[^"]*?(\1)|[^>])*>/i,
- ramp = /&/g
- var getAttributes = function(elem) {
- if (elem.outerHTML.slice(0, 2) === "</") { //处理旧式IE模拟HTML5新元素带来的伪标签
- return []
- }
- var str = elem.outerHTML.match(rtag)[0]
- var attributes = [],
- match,
- k, v;
- if (cacheAttr[str]) {
- return cacheAttr[str]
- }
- while (k = rattrs.exec(str)) {
- v = k[2]
- if (v) {
- v = (rquote.test(v) ? v.slice(1, -1) : v).replace(ramp, "&")
- }
- var name = k[1].toLowerCase()
- match = name.match(rmsAttr)
- var binding = {
- name: name,
- specified: true,
- value: v || ""
- }
- attributes.push(binding)
- }
- return cacheAttr(str, attributes)
- }
- }
- function executeBindings(bindings, vmodels) {
- for (var i = 0, data; data = bindings[i++]; ) {
- data.vmodels = vmodels
- bindingHandlers[data.type](data, vmodels)
- if (data.evaluator && data.name) { //移除数据绑定,防止被二次解析
- //chrome使用removeAttributeNode移除不存在的特性节点时会报错 https://github.com/RubyLouvre/avalon/issues/99
- data.element.removeAttribute(data.name)
- }
- }
- bindings.length = 0
- }
- var rfilters = /\|\s*(\w+)\s*(\([^)]*\))?/g,
- r11a = /\|\|/g,
- r11b = /U2hvcnRDaXJjdWl0/g,
- rlt = /</g,
- rgt = />/g
- function trimFilter(value, leach) {
- if (value.indexOf("|") > 0) { // 抽取过滤器 先替换掉所有短路与
- value = value.replace(r11a, "U2hvcnRDaXJjdWl0") //btoa("ShortCircuit")
- value = value.replace(rfilters, function(c, d, e) {
- leach.push(d + (e || ""))
- return ""
- })
- value = value.replace(r11b, "||") //还原短路与
- }
- return value
- }
- function scanExpr(str) {
- var tokens = [],
- value, start = 0,
- stop
- do {
- stop = str.indexOf(openTag, start)
- if (stop === -1) {
- break
- }
- value = str.slice(start, stop)
- if (value) { // {{ 左边的文本
- tokens.push({
- value: value,
- expr: false
- })
- }
- start = stop + openTag.length
- stop = str.indexOf(closeTag, start)
- if (stop === -1) {
- break
- }
- value = str.slice(start, stop)
- if (value) { //处理{{ }}插值表达式
- var leach = []
- value = trimFilter(value, leach)
- tokens.push({
- value: value,
- expr: true,
- filters: leach.length ? leach : void 0
- })
- }
- start = stop + closeTag.length
- } while (1)
- value = str.slice(start)
- if (value) { //}} 右边的文本
- tokens.push({
- value: value,
- expr: false
- })
- }
- return tokens
- }
- /*********************************************************************
- * 编译模块 *
- **********************************************************************/
- var keywords =
- // 关键字
- "break,case,catch,continue,debugger,default,delete,do,else,false" + ",finally,for,function,if,in,instanceof,new,null,return,switch,this" + ",throw,true,try,typeof,var,void,while,with"
- // 保留字
- + ",abstract,boolean,byte,char,class,const,double,enum,export,extends" + ",final,float,goto,implements,import,int,interface,long,native" + ",package,private,protected,public,short,static,super,synchronized" + ",throws,transient,volatile"
- // ECMA 5 - use strict
- + ",arguments,let,yield"
- + ",undefined"
- var rrexpstr = /\/\*[\w\W]*?\*\/|\/\/[^\n]*\n|\/\/[^\n]*$|"(?:[^"\\]|\\[\w\W])*"|'(?:[^'\\]|\\[\w\W])*'|[\s\t\n]*\.[\s\t\n]*[$\w\.]+/g
- var rsplit = /[^\w$]+/g
- var rkeywords = new RegExp(["\\b" + keywords.replace(/,/g, '\\b|\\b') + "\\b"].join('|'), 'g')
- var rnumber = /\b\d[^,]*/g
- var rcomma = /^,+|,+$/g
- var cacheVars = createCache(512)
- var getVariables = function(code) {
- code = "," + code.trim()
- if (cacheVars[code]) {
- return cacheVars[code]
- }
- var match = code
- .replace(rrexpstr, "")
- .replace(rsplit, ",")
- .replace(rkeywords, "")
- .replace(rnumber, "")
- .replace(rcomma, "")
- .split(/^$|,+/)
- var vars = [],
- unique = {}
- for (var i = 0; i < match.length; ++i) {
- var variable = match[i]
- if (!unique[variable]) {
- unique[variable] = vars.push(variable)
- }
- }
- return cacheVars(code, vars)
- }
- //添加赋值语句
- function addAssign(vars, scope, name, duplex) {
- var ret = [],
- prefix = " = " + name + "."
- for (var i = vars.length, prop; prop = vars[--i]; ) {
- if (scope.hasOwnProperty && scope.hasOwnProperty(prop)) { //IE6下节点没有hasOwnProperty
- ret.push(prop + prefix + prop)
- if (duplex === "duplex") {
- vars.get = name + "." + prop
- }
- vars.splice(i, 1)
- }
- }
- return ret
- }
- function uniqVmodels(arr) {
- var uniq = {}
- return arr.filter(function(el) {
- if (!uniq[el.$id]) {
- uniq[el.$id] = 1
- return true
- }
- })
- }
- //缓存求值函数,以便多次利用
- function createCache(maxLength) {
- var keys = []
- function cache(key, value) {
- if (keys.push(key) > maxLength) {
- delete cache[keys.shift()]
- }
- return cache[key] = value;
- }
- return cache;
- }
- var cacheExpr = createCache(256)
- //取得求值函数及其传参
- var rduplex = /\w\[.*\]|\w\.\w/
- var rproxy = /(\$proxy\$[a-z]+)\d+$/
- function parseExpr(code, scopes, data, four) {
- var dataType = data.type
- var filters = dataType == "html" || dataType === "text" ? data.filters : ""
- var exprId = scopes.map(function(el) {
- return el.$id.replace(rproxy, "$1")
- }) + code + dataType + filters
- var vars = getVariables(code).concat(),
- assigns = [],
- names = [],
- args = [],
- prefix = ""
- //args 是一个对象数组, names 是将要生成的求值函数的参数
- scopes = uniqVmodels(scopes)
- for (var i = 0, sn = scopes.length; i < sn; i++) {
- if (vars.length) {
- var name = "vm" + expose + "_" + i
- names.push(name)
- args.push(scopes[i])
- assigns.push.apply(assigns, addAssign(vars, scopes[i], name, four))
- }
- }
- //---------------args----------------
- if (filters) {
- args.push(avalon.filters)
- }
- data.args = args
- //---------------cache----------------
- var fn = cacheExpr[exprId] //直接从缓存,免得重复生成
- if (fn) {
- data.evaluator = fn
- return
- }
- var prefix = assigns.join(", ")
- if (prefix) {
- prefix = "var " + prefix
- }
- if (filters) { //文本绑定,双工绑定才有过滤器
- code = "\nvar ret" + expose + " = " + code
- var textBuffer = [],
- fargs
- textBuffer.push(code, "\r\n")
- for (var i = 0, fname; fname = data.filters[i++]; ) {
- var start = fname.indexOf("(")
- if (start !== -1) {
- fargs = fname.slice(start + 1, fname.lastIndexOf(")")).trim()
- fargs = "," + fargs
- fname = fname.slice(0, start).trim()
- } else {
- fargs = ""
- }
- textBuffer.push(" if(filters", expose, ".", fname, "){\n\ttry{\nret", expose,
- " = filters", expose, ".", fname, "(ret", expose, fargs, ")\n\t}catch(e){} \n}\n")
- }
- code = textBuffer.join("")
- code += "\nreturn ret" + expose
- names.push("filters" + expose)
- } else if (dataType === "duplex") { //双工绑定
- var _body = "'use strict';\nreturn function(vvv){\n\t" +
- prefix +
- ";\n\tif(!arguments.length){\n\t\treturn " +
- code +
- "\n\t}\n\t" + (!rduplex.test(code) ? vars.get : code) +
- "= vvv;\n} "
- try {
- fn = Function.apply(noop, names.concat(_body))
- data.evaluator = cacheExpr(exprId, fn)
- } catch (e) {
- log("debug: parse error," + e.message)
- }
- return
- } else if (dataType === "on") { //事件绑定
- code = code.replace("(", ".call(this,")
- if (four === "$event") {
- names.push(four)
- }
- code = "\nreturn " + code + ";" //IE全家 Function("return ")出错,需要Function("return ;")
- var lastIndex = code.lastIndexOf("\nreturn")
- var header = code.slice(0, lastIndex)
- var footer = code.slice(lastIndex)
- code = header + "\nif(avalon.openComputedCollect) return ;" + footer
- } else { //其他绑定
- code = "\nreturn " + code + ";" //IE全家 Function("return ")出错,需要Function("return ;")
- }
- try {
- fn = Function.apply(noop, names.concat("'use strict';\n" + prefix + code))
- data.evaluator = cacheExpr(exprId, fn)
- } catch (e) {
- log("debug: parse error," + e.message)
- } finally {
- vars = textBuffer = names = null //释放内存
- }
- }
- //parseExpr的智能引用代理
- function parseExprProxy(code, scopes, data, tokens) {
- if (Array.isArray(tokens)) {
- var array = tokens.map(function(token) {
- var tmpl = {}
- return token.expr ? parseExpr(token.value, scopes, tmpl) || tmpl : token.value
- })
- data.evaluator = function() {
- var ret = ""
- for (var i = 0, el; el = array[i++]; ) {
- ret += typeof el === "string" ? el : el.evaluator.apply(0, el.args)
- }
- return ret
- }
- data.args = []
- } else {
- parseExpr(code, scopes, data, tokens)
- }
- if (data.evaluator) {
- data.handler = bindingExecutors[data.handlerName || data.type]
- data.evaluator.toString = function() {
- return data.type + " binding to eval(" + code + ")"
- }
- //方便调试
- //这里非常重要,我们通过判定视图刷新函数的element是否在DOM树决定
- //将它移出订阅者列表
- registerSubscriber(data)
- }
- }
- avalon.parseExprProxy = parseExprProxy
- /*********************************************************************
- *绑定模块(实现“操作数据即操作DOM”的关键,将DOM操作放逐出前端开发人员的视野,让它交由框架自行处理,开发人员专致于业务本身) * *
- **********************************************************************/
- var cacheDisplay = oneObject("a,abbr,b,span,strong,em,font,i,kbd", "inline")
- avalon.mix(cacheDisplay, oneObject("div,h1,h2,h3,h4,h5,h6,section,p", "block"))
- function parseDisplay(nodeName, val) {
- //用于取得此类标签的默认display值
- nodeName = nodeName.toLowerCase()
- if (!cacheDisplay[nodeName]) {
- var node = DOC.createElement(nodeName)
- root.appendChild(node)
- if (W3C) {
- val = getComputedStyle(node, null).display
- } else {
- val = node.currentStyle.display
- }
- root.removeChild(node)
- cacheDisplay[nodeName] = val
- }
- return cacheDisplay[nodeName]
- }
- avalon.parseDisplay = parseDisplay
- var supportDisplay = (function(td) {
- return W3C ? getComputedStyle(td, null).display === "table-cell" : true
- })(DOC.createElement("td"))
- var propMap = {//属性名映射
- "accept-charset": "acceptCharset",
- "char": "ch",
- "charoff": "chOff",
- "class": "className",
- "for": "htmlFor",
- "http-equiv": "httpEquiv"
- }
- var anomaly = "accessKey,allowTransparency,bgColor,cellPadding,cellSpacing,codeBase,codeType,colSpan,contentEditable,"
- + "dateTime,defaultChecked,defaultSelected,defaultValue,frameBorder,isMap,longDesc,maxLength,marginWidth,marginHeight,"
- + "noHref,noResize,noShade,readOnly,rowSpan,tabIndex,useMap,vSpace,valueType,vAlign"
- anomaly.replace(rword, function(name) {
- propMap[name.toLowerCase()] = name
- })
- var rdash = /\(([^)]*)\)/
- var cssText = "<style id='avalonStyle'>.avalonHide{ display: none!important }</style>"
- head.insertBefore(avalon.parseHTML(cssText), head.firstChild) //避免IE6 base标签BUG
- var rnoscripts = /<noscript.*?>(?:[\s\S]+?)<\/noscript>/img
- var rnoscriptText = /<noscript.*?>([\s\S]+?)<\/noscript>/im
- var getXHR = function() {
- return new (window.XMLHttpRequest || ActiveXObject)("Microsoft.XMLHTTP")
- }
- var getBindingCallback = function(elem, name, vmodels) {
- var callback = elem.getAttribute(name)
- if (callback) {
- for (var i = 0, vm; vm = vmodels[i++]; ) {
- if (vm.hasOwnProperty(callback) && typeof vm[callback] === "function") {
- return vm[callback]
- }
- }
- }
- }
- var includeContents = {}
- var ifSanctuary = DOC.createElement("div")
- ifSanctuary.innerHTML = "a"
- try {
- ifSanctuary.contains(ifSanctuary.firstChild)
- avalon.contains = function(a, b) {
- return a.contains(b)
- }
- } catch (e) {
- avalon.contains = fixContains
- }
- //这里的函数每当VM发生改变后,都会被执行(操作方为notifySubscribers)
- var bindingExecutors = avalon.bindingExecutors = {
- "attr": function(val, elem, data) {
- var method = data.type,
- attrName = data.param
- if (method === "css") {
- avalon(elem).css(attrName, val)
- } else if (method === "attr") {
- // ms-attr-class="xxx" vm.xxx="aaa bbb ccc"将元素的className设置为aaa bbb ccc
- // ms-attr-class="xxx" vm.xxx=false 清空元素的所有类名
- // ms-attr-name="yyy" vm.yyy="ooo" 为元素设置name属性
- var toRemove = (val === false) || (val === null) || (val === void 0)
- if (toRemove) {
- elem.removeAttribute(attrName)
- } else if (!W3C) {
- attrName = propMap[attrName] || attrName
- if (toRemove) {
- elem.removeAttribute(attrName)
- } else {
- elem[attrName] = val
- }
- } else if (!toRemove) {
- elem.setAttribute(attrName, val)
- }
- } else if (method === "include" && val) {
- var vmodels = data.vmodels
- var rendered = getBindingCallback(elem, "data-include-rendered", vmodels)
- var loaded = getBindingCallback(elem, "data-include-loaded", vmodels)
- function scanTemplate(text) {
- if (loaded) {
- text = loaded.apply(elem, [text].concat(vmodels))
- }
- avalon.innerHTML(elem, text)
- scanNodes(elem, vmodels)
- rendered && checkScan(elem, function() {
- rendered.call(elem)
- })
- }
- if (data.param === "src") {
- if (includeContents[val]) {
- scanTemplate(includeContents[val])
- } else {
- var xhr = getXHR()
- xhr.onreadystatechange = function() {
- if (xhr.readyState === 4) {
- var s = xhr.status
- if (s >= 200 && s < 300 || s === 304 || s === 1223) {
- scanTemplate(includeContents[val] = xhr.responseText)
- }
- }
- }
- xhr.open("GET", val, true)
- if ("withCredentials" in xhr) {
- xhr.withCredentials = true
- }
- xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest")
- xhr.send(null)
- }
- } else {
- //IE系列与够新的标准浏览器支持通过ID取得元素(firefox14+)
- //http://tjvantoll.com/2012/07/19/dom-element-references-as-global-variables/
- var el = val && val.nodeType == 1 ? val : DOC.getElementById(val)
- if (el) {
- if (el.tagName === "NOSCRIPT" && !(el.innerHTML || el.fixIE78)) { //IE7-8 innerText,innerHTML都无法取得其内容,IE6能取得其innerHTML
- var xhr = getXHR() //IE9-11与chrome的innerHTML会得到转义的内容,它们的innerText可以
- xhr.open("GET", location, false) //谢谢Nodejs 乱炖群 深圳-纯属虚构
- xhr.send(null)
- //http://bbs.csdn.net/topics/390349046?page=1#post-393492653
- var noscripts = DOC.getElementsByTagName("noscript")
- var array = (xhr.responseText || "").match(rnoscripts) || []
- var n = array.length
- for (var i = 0; i < n; i++) {
- var tag = noscripts[i]
- if (tag) { //IE6-8中noscript标签的innerHTML,innerText是只读的
- tag.style.display = "none" //http://haslayout.net/css/noscript-Ghost-Bug
- tag.fixIE78 = (array[i].match(rnoscriptText) || ["", " "])[1]
- }
- }
- }
- avalon.nextTick(function() {
- scanTemplate(el.fixIE78 || el.innerText || el.innerHTML)
- })
- }
- }
- } else {
- if (!root.hasAttribute && typeof val === "string" && (method === "src" || method === "href")) {
- val = val.replace(/&/g, "&") //处理IE67自动转义的问题
- }
- elem[method] = val
- }
- },
- "class": function(val, elem, data) {
- var $elem = avalon(elem),
- method = data.type
- if (method === "class" && data.param) { //如果是旧风格
- $elem.toggleClass(data.param, !!val)
- } else {
- var toggle = data._evaluator ? !!data._evaluator.apply(elem, data._args) : true
- var className = data._class || val
- switch (method) {
- case "class":
- if (toggle && data.oldClass) {
- $elem.removeClass(data.oldClass)
- }
- $elem.toggleClass(className, toggle)
- data.oldClass = className
- break;
- case "hover":
- case "active":
- if (!data.init) { //确保只绑定一次
- if (method === "hover") { //在移出移入时切换类名
- var event1 = "mouseenter",
- event2 = "mouseleave"
- } else { //在聚焦失焦中切换类名
- elem.tabIndex = elem.tabIndex || -1
- event1 = "mousedown", event2 = "mouseup"
- $elem.bind("mouseleave", function() {
- toggle && $elem.removeClass(className)
- })
- }
- $elem.bind(event1, function() {
- toggle && $elem.addClass(className)
- })
- $elem.bind(event2, function() {
- toggle && $elem.removeClass(className)
- })
- data.init = 1
- }
- break;
- }
- }
- },
- "data": function(val, elem, data) {
- var key = "data-" + data.param
- if (val && typeof val === "object") {
- elem[key] = val
- } else {
- elem.setAttribute(key, String(val))
- }
- },
- "checked": function(val, elem, data) {
- var name = data.type;
- if (name === "enabled") {
- elem.disabled = !val
- } else {
- var propName = name === "readonly" ? "readOnly" : name
- elem[propName] = !!val
- }
- },
- "repeat": function(method, pos, el) {
- if (method) {
- var data = this
- var group = data.group
- var pp = data.startRepeat && data.startRepeat.parentNode
- if (pp) { //fix #300 #307
- data.parent = pp
- }
- var parent = data.parent
- var proxies = data.proxies
- var transation = hyperspace.cloneNode(false)
- if (method === "del" || method === "move") {
- var locatedNode = getLocatedNode(parent, data, pos)
- }
- switch (method) {
- case "add": //在pos位置后添加el数组(pos为数字,el为数组)
- var arr = el
- var last = data.getter().length - 1
- var spans = []
- var lastFn = {}
- for (var i = 0, n = arr.length; i < n; i++) {
- var ii = i + pos
- var proxy = getEachProxy(ii, arr[i], data, last)
- proxies.splice(ii, 0, proxy)
- lastFn = shimController(data, transation, spans, proxy)
- }
- locatedNode = getLocatedNode(parent, data, pos)
- lastFn.node = locatedNode
- lastFn.parent = parent
- parent.insertBefore(transation, locatedNode)
- for (var i = 0, node; node = spans[i++]; ) {
- scanTag(node, data.vmodels)
- }
- spans = null
- break
- case "del": //将pos后的el个元素删掉(pos, el都是数字)
- var removed = proxies.splice(pos, el)
- for (var i = 0, proxy; proxy = removed[i++]; ) {
- recycleEachProxy(proxy)
- }
- expelFromSanctuary(removeView(locatedNode, group, el))
- break
- case "index": //将proxies中的第pos个起的所有元素重新索引(pos为数字,el用作循环变量)
- var last = proxies.length - 1
- for (; el = proxies[pos]; pos++) {
- el.$index = pos
- el.$first = pos === 0
- el.$last = pos === last
- }
- break
- case "clear":
- if (data.startRepeat) {
- while (true) {
- var node = data.startRepeat.nextSibling
- if (node && node !== data.endRepeat) {
- transation.appendChild(node)
- } else {
- break
- }
- }
- } else {
- transation = parent
- }
- expelFromSanctuary(transation)
- proxies.length = 0
- break
- case "move": //将proxies中的第pos个元素移动el位置上(pos, el都是数字)
- var t = proxies.splice(pos, 1)[0]
- if (t) {
- proxies.splice(el, 0, t)
- transation = removeView(locatedNode, group)
- locatedNode = getLocatedNode(parent, data, el)
- parent.insertBefore(transation, locatedNode)
- }
- break
- case "set": //将proxies中的第pos个元素的VM设置为el(pos为数字,el任意)
- var proxy = proxies[pos]
- if (proxy) {
- proxy[proxy.$itemName] = el
- }
- break
- case "append": //将pos的键值对从el中取出(pos为一个普通对象,el为预先生成好的代理VM对象池)
- var pool = el
- var callback = getBindingCallback(data.callbackElement, "data-with-sorted", data.vmodels)
- var keys = []
- var spans = []
- var lastFn = {}
- for (var key in pos) { //得到所有键名
- if (pos.hasOwnProperty(key) && key !== "hasOwnProperty") {
- keys.push(key)
- }
- }
- if (callback) { //如果有回调,则让它们排序
- var keys2 = callback.call(parent, keys)
- if (keys2 && Array.isArray(keys2) && keys2.length) {
- keys = keys2
- }
- }
- for (var i = 0, key; key = keys[i++]; ) {
- if (key !== "hasOwnProperty") {
- lastFn = shimController(data, transation, spans, pool[key])
- }
- }
- lastFn.parent = parent
- lastFn.node = data.endRepeat || null
- parent.insertBefore(transation, lastFn.node)
- for (var i = 0, el; el = spans[i++]; ) {
- scanTag(el, data.vmodels)
- }
- spans = null
- break
- }
- iteratorCallback.call(data, arguments)
- }
- },
- "html": function(val, elem, data) {
- val = val == null ? "" : val
- if (!elem) {
- elem = data.element = data.node.parentNode
- }
- if (data.replaceNodes) {
- var fragment, nodes
- if (val.nodeType === 11) {
- fragment = val
- } else if (val.nodeType === 1 || val.item) {
- nodes = val.nodeType === 1 ? val.childNodes : val.item ? val : []
- fragment = hyperspace.cloneNode(true)
- while (nodes[0]) {
- fragment.appendChild(nodes[0])
- }
- } else {
- fragment = avalon.parseHTML(val)
- }
- var replaceNodes = avalon.slice(fragment.childNodes)
- elem.insertBefore(fragment, data.replaceNodes[0] || null) //fix IE6-8 insertBefore的第2个参数只能为节点或null
- for (var i = 0, node; node = data.replaceNodes[i++]; ) {
- elem.removeChild(node)
- }
- data.replaceNodes = replaceNodes
- } else {
- avalon.innerHTML(elem, val)
- }
- avalon.nextTick(function() {
- scanNodes(elem, data.vmodels)
- })
- },
- "if": function(val, elem, data) {
- var placehoder = data.placehoder
- if (val) { //插回DOM树
- if (!data.msInDocument) {
- data.msInDocument = true
- try {
- placehoder.parentNode.replaceChild(elem, placehoder)
- } catch (e) {
- log("debug: ms-if " + e.message)
- }
- }
- if (rbind.test(elem.outerHTML.replace(rlt, "<").replace(rgt, ">"))) {
- scanAttr(elem, data.vmodels)
- }
- } else { //移出DOM树,放进ifSanctuary DIV中,并用注释节点占据原位置
- if (data.msInDocument) {
- data.msInDocument = false
- elem.parentNode.replaceChild(placehoder, elem)
- placehoder.elem = elem
- ifSanctuary.appendChild(elem)
- }
- }
- },
- "on": function(callback, elem, data) {
- var fn = data.evaluator
- var args = data.args
- var vmodels = data.vmodels
- if (!data.hasArgs) {
- callback = function(e) {
- return fn.apply(0, args).call(this, e)
- }
- } else {
- callback = function(e) {
- return fn.apply(this, args.concat(e))
- }
- }
- elem.$vmodel = vmodels[0]
- elem.$vmodels = vmodels
- data.param = data.param.replace(/-\d+$/, "") // ms-on-mousemove-10
- if (typeof data.specialBind === "function") {
- data.specialBind(elem, callback)
- } else {
- var removeFn = avalon.bind(elem, data.param, callback)
- }
- data.rollback = function() {
- if (typeof data.specialUnbind === "function") {
- data.specialUnbind()
- } else {
- avalon.unbind(elem, data.param, removeFn)
- }
- }
- data.evaluator = data.handler = noop
- },
- "text": function(val, elem, data) {
- val = val == null ? "" : val //不在页面上显示undefined null
- if (data.nodeType === 3) { //绑定在文本节点上
- data.node.data = val
- } else { //绑定在特性节点上
- if (!elem) {
- elem = data.element = data.node.parentNode
- }
- if ("textContent" in elem) {
- elem.textContent = val
- } else {
- elem.innerText = val
- }
- }
- },
- "visible": function(val, elem, data) {
- elem.style.display = val ? data.display : "none"
- },
- "widget": noop
- }
- var rwhitespace = /^\s+$/
- //这里的函数只会在第一次被扫描后被执行一次,并放进行对应VM属性的subscribers数组内(操作方为registerSubscriber)
- var bindingHandlers = avalon.bindingHandlers = {
- //这是一个字符串属性绑定的范本, 方便你在title, alt, src, href, include, css添加插值表达式
- //<a ms-href="{{url.hostname}}/{{url.pathname}}.html">
- "attr": function(data, vmodels) {
- var text = data.value.trim(),
- simple = true
- if (text.indexOf(openTag) > -1 && text.indexOf(closeTag) > 2) {
- simple = false
- if (rexpr.test(text) && RegExp.rightContext === "" && RegExp.leftContext === "") {
- simple = true
- text = RegExp.$1
- }
- }
- data.handlerName = "attr" //handleName用于处理多种绑定共用同一种bindingExecutor的情况
- parseExprProxy(text, vmodels, data, (simple ? null : scanExpr(data.value)))
- },
- "checked": function(data, vmodels) {
- data.handlerName = "checked"
- parseExprProxy(data.value, vmodels, data)
- },
- //根据VM的属性值或表达式的值切换类名,ms-class="xxx yyy zzz:flag"
- //http://www.cnblogs.com/rubylouvre/archive/2012/12/17/2818540.html
- "class": function(data, vmodels) {
- var oldStyle = data.param,
- text = data.value,
- rightExpr
- data.handlerName = "class"
- if (!oldStyle || isFinite(oldStyle)) {
- data.param = "" //去掉数字
- var noExpr = text.replace(rexprg, function(a) {
- return Math.pow(10, a.length - 1) //将插值表达式插入10的N-1次方来占位
- })
- var colonIndex = noExpr.indexOf(":") //取得第一个冒号的位置
- if (colonIndex === -1) { // 比如 ms-class="aaa bbb ccc" 的情况
- var className = text
- } else { // 比如 ms-class-1="ui-state-active:checked" 的情况
- className = text.slice(0, colonIndex)
- rightExpr = text.slice(colonIndex + 1)
- parseExpr(rightExpr, vmodels, data) //决定是添加还是删除
- if (!data.evaluator) {
- log("debug: ms-class '" + (rightExpr || "").trim() + "' 不存在于VM中")
- return false
- } else {
- data._evaluator = data.evaluator
- data._args = data.args
- }
- }
- var hasExpr = rexpr.test(className) //比如ms-class="width{{w}}"的情况
- if (!hasExpr) {
- data._class = className
- }
- parseExprProxy("", vmodels, data, (hasExpr ? scanExpr(className) : null))
- } else if (data.type === "class") {
- parseExprProxy(text, vmodels, data)
- }
- },
- "duplex": function(data, vmodels) {
- var elem = data.element,
- tagName = elem.tagName
- if (typeof duplexBinding[tagName] === "function") {
- data.changed = getBindingCallback(elem, "data-duplex-changed", vmodels) || noop
- //由于情况特殊,不再经过parseExprProxy
- parseExpr(data.value, vmodels, data, "duplex")
- if (data.evaluator && data.args) {
- var form = elem.form
- if (form && form.msValidate) {
- form.msValidate(elem)
- }
- data.bound = function(type, callback) {
- if (elem.addEventListener) {
- elem.addEventListener(type, callback, false)
- } else {
- elem.attachEvent("on" + type, callback)
- }
- var old = data.rollback
- data.rollback = function() {
- avalon.unbind(elem, type, callback)
- old && old()
- }
- }
- duplexBinding[elem.tagName](elem, data.evaluator.apply(null, data.args), data)
- }
- }
- },
- "repeat": function(data, vmodels) {
- var type = data.type,
- list
- parseExpr(data.value, vmodels, data)
- if (type !== "repeat") {
- log("warning:建议使用ms-repeat代替ms-each, ms-with, ms-repeat只占用一个标签并且性能更好")
- }
- var elem = data.callbackElement = data.parent = data.element //用于判定当前元素是否位于DOM树
- data.getter = function() {
- return this.evaluator.apply(0, this.args || [])
- }
- data.proxies = []
- var freturn = true
- try {
- list = data.getter()
- var xtype = getType(list)
- if (xtype == "object" || xtype == "array") {
- freturn = false
- }
- } catch (e) {
- }
- var template = hyperspace.cloneNode(false)
- if (type === "repeat") {
- var startRepeat = DOC.createComment("ms-repeat-start")
- var endRepeat = DOC.createComment("ms-repeat-end")
- data.element = data.parent = elem.parentNode
- data.startRepeat = startRepeat
- data.endRepeat = endRepeat
- elem.removeAttribute(data.name)
- data.parent.replaceChild(endRepeat, elem)
- data.parent.insertBefore(startRepeat, endRepeat)
- template.appendChild(elem)
- } else {
- var node
- while (node = elem.firstChild) {
- if (node.nodeType === 3 && rwhitespace.test(node.data)) {
- elem.removeChild(node)
- } else {
- template.appendChild(node)
- }
- }
- }
- data.template = template
- data.rollback = function() {
- bindingExecutors.repeat.call(data, "clear")
- var endRepeat = data.endRepeat
- var parent = data.parent
- parent.insertBefore(data.template, endRepeat || null)
- if (endRepeat) {
- parent.removeChild(endRepeat)
- parent.removeChild(data.startRepeat)
- data.element = data.callbackElement
- }
- }
- var arr = data.value.split(".") || []
- if (arr.length > 1) {
- arr.pop()
- var n = arr[0]
- for (var i = 0, v; v = vmodels[i++]; ) {
- if (v && v.hasOwnProperty(n) && v[n][subscribers]) {
- v[n][subscribers].push(data)
- break
- }
- }
- }
- if (freturn) {
- return
- }
- data.callbackName = "data-" + type + "-rendered"
- data.handler = bindingExecutors.repeat
- data.$outer = {}
- var check0 = "$key",
- check1 = "$val"
- if (Array.isArray(list)) {
- check0 = "$first"
- check1 = "$last"
- }
- for (var i = 0, p; p = vmodels[i++]; ) {
- if (p.hasOwnProperty(check0) && p.hasOwnProperty(check1)) {
- data.$outer = p
- break
- }
- }
- node = template.firstChild
- data.fastRepeat = !!node && node.nodeType === 1 && template.lastChild === node && !node.attributes["ms-controller"] && !node.attributes["ms-important"]
- list[subscribers] && list[subscribers].push(data)
- if (!Array.isArray(list) && type !== "each") {
- var pool = withProxyPool[list.$id]
- if (!pool) {
- withProxyCount++
- pool = withProxyPool[list.$id] = {}
- for (var key in list) {
- if (list.hasOwnProperty(key) && key !== "hasOwnProperty") {
- (function(k, v) {
- pool[k] = createWithProxy(k, v, {})
- pool[k].$watch("$val", function(val) {
- list[k] = val //#303
- })
- })(key, list[key])
- }
- }
- }
- data.handler("append", list, pool)
- } else {
- data.handler("add", 0, list)
- }
- },
- "html": function(data, vmodels) {
- parseExprProxy(data.value, vmodels, data)
- },
- "if": function(data, vmodels) {
- var elem = data.element
- elem.removeAttribute(data.name)
- if (!data.placehoder) {
- data.msInDocument = data.placehoder = DOC.createComment("ms-if")
- }
- data.vmodels = vmodels
- parseExprProxy(data.value, vmodels, data)
- },
- "on": function(data, vmodels) {
- var value = data.value,
- four = "$event"
- if (value.indexOf("(") > 0 && value.indexOf(")") > -1) {
- var matched = (value.match(rdash) || ["", ""])[1].trim()
- if (matched === "" || matched === "$event") { // aaa() aaa($event)当成aaa处理
- four = void 0
- value = value.replace(rdash, "")
- }
- } else {
- four = void 0
- }
- data.hasArgs = four
- parseExprProxy(value, vmodels, data, four)
- },
- "visible": function(data, vmodels) {
- var elem = data.element
- if (!supportDisplay && !root.contains(elem)) { //fuck firfox 全家!
- var display = parseDisplay(elem.tagName)
- }
- display = display || avalon(elem).css("display")
- data.display = display === "none" ? parseDisplay(elem.tagName) : display
- parseExprProxy(data.value, vmodels, data)
- },
- "widget": function(data, vmodels) {
- var args = data.value.match(rword)
- var elem = data.element
- var widget = args[0]
- if (args[1] === "$" || !args[1]) {
- args[1] = widget + setTimeout("1")
- }
- data.value = args.join(",")
- var constructor = avalon.ui[widget]
- if (typeof constructor === "function") { //ms-widget="tabs,tabsAAA,optname"
- vmodels = elem.vmodels || vmodels
- var optName = args[2] || widget //尝试获得配置项的名字,没有则取widget的名字
- for (var i = 0, v; v = vmodels[i++]; ) {
- if (v.hasOwnProperty(optName) && typeof v[optName] === "object") {
- var nearestVM = v
- break
- }
- }
- if (nearestVM) {
- var vmOptions = nearestVM[optName]
- vmOptions = vmOptions.$model || vmOptions
- var id = vmOptions[widget + "Id"]
- if (typeof id === "string") {
- args[1] = id
- }
- }
- var widgetData = avalon.getWidgetData(elem, args[0]) //抽取data-tooltip-text、data-tooltip-attr属性,组成一个配置对象
- data[widget + "Id"] = args[1]
- data[widget + "Options"] = avalon.mix({}, constructor.defaults, vmOptions || {}, widgetData)
- elem.removeAttribute("ms-widget")
- var vmodel = constructor(elem, data, vmodels) || {} //防止组件不返回VM
- data.evaluator = noop
- elem.msData["ms-widget-id"] = vmodel.$id || ""
- if (vmodel.hasOwnProperty("$init")) {
- vmodel.$init()
- }
- if (vmodel.hasOwnProperty("$remove")) {
- var offTree = function() {
- vmodel.$remove()
- elem.msData = {}
- delete VMODELS[vmodel.$id]
- }
- if (supportMutationEvents) {
- elem.addEventListener("DOMNodeRemoved", function(e) {
- if (e.target === this && !this.msRetain) {
- offTree()
- }
- })
- } else {
- elem.offTree = offTree
- launchImpl(elem)
- }
- }
- } else if (vmodels.length) { //如果该组件还没有加载,那么保存当前的vmodels
- elem.vmodels = vmodels
- }
- }
- }
- var supportMutationEvents = W3C && DOC.implementation.hasFeature("MutationEvents", "2.0")
- //============================ class preperty binding =======================
- "hover,active".replace(rword, function(method) {
- bindingHandlers[method] = bindingHandlers["class"]
- })
- "with,each".replace(rword, function(name) {
- bindingHandlers[name] = bindingHandlers.repeat
- })
- //============================= boolean preperty binding =======================
- "disabled,enabled,readonly,selected".replace(rword, function(name) {
- bindingHandlers[name] = bindingHandlers.checked
- })
- bindingHandlers.data = bindingHandlers.text = bindingHandlers.html
- //============================= string preperty binding =======================
- //与href绑定器 用法差不多的其他字符串属性的绑定器
- //建议不要直接在src属性上修改,这样会发出无效的请求,请使用ms-src
- "title,alt,src,value,css,include,href".replace(rword, function(name) {
- bindingHandlers[name] = bindingHandlers.attr
- })
- //============================= model binding =======================
- //将模型中的字段与input, textarea的value值关联在一起
- var duplexBinding = bindingHandlers.duplex
- //如果一个input标签添加了model绑定。那么它对应的字段将与元素的value连结在一起
- //字段变,value就变;value变,字段也跟着变。默认是绑定input事件,
- duplexBinding.INPUT = function(element, evaluator, data) {
- var fixType = data.param,
- type = element.type,
- bound = data.bound,
- $elem = avalon(element),
- firstTigger = false,
- composing = false,
- callback = function(value) {
- firstTigger = true
- data.changed.call(this, value)
- },
- compositionStart = function() {
- composing = true
- },
- compositionEnd = function() {
- composing = false
- },
- //当value变化时改变model的值
- updateVModel = function() {
- if (composing)
- return
- var val = element.oldValue = element.value
- if ($elem.data("duplex-observe") !== false) {
- evaluator(val)
- callback.call(element, val)
- }
- }
- //当model变化时,它就会改变value的值
- data.handler = function() {
- var val = evaluator()
- if (val !== element.value) {
- element.value = val + ""
- }
- }
- if (type === "checkbox" && fixType === "radio") {
- type = "radio"
- }
- if (type === "radio") {
- data.handler = function() {
- //IE6是通过defaultChecked来实现打勾效果
- element.defaultChecked = (element.checked = /bool|text/.test(fixType) ? evaluator() + "" === element.value : !!evaluator())
- }
- updateVModel = function() {
- if ($elem.data("duplex-observe") !== false) {
- var val = element.value
- if (fixType === "text") {
- evaluator(val)
- } else if (fixType === "bool") {
- val = val === "true"
- evaluator(val)
- } else {
- val = !element.defaultChecked
- evaluator(val)
- element.checked = val
- }
- callback.call(element, val)
- }
- }
- bound(fixType ? "click" : "mousedown", updateVModel)
- } else if (type === "checkbox") {
- updateVModel = function() {
- if ($elem.data("duplex-observe") !== false) {
- var method = element.checked ? "ensure" : "remove"
- var array = evaluator()
- if (Array.isArray(array)) {
- avalon.Array[method](array, element.value)
- } else {
- avalon.error("ms-duplex位于checkbox时要求对应一个数组")
- }
- callback.call(element, array)
- }
- }
- data.handler = function() {
- var array = [].concat(evaluator()) //强制转换为数组
- element.checked = array.indexOf(element.value) >= 0
- }
- bound(W3C ? "change" : "click", updateVModel)
- } else {
- var event = element.attributes["data-duplex-event"] || element.attributes["data-event"] || {}
- event = event.value
- if (event === "change") {
- bound("change", updateVModel)
- } else {
- if (W3C && DOC.documentMode !== 9) { //IE10+, W3C
- bound("input", updateVModel)
- bound("compositionstart", compositionStart)
- bound("compositionend", compositionEnd)
- } else {
- var events = ["keyup", "paste", "cut", "change"]
- function removeFn(e) {
- var key = e.keyCode
- // command modifiers arrows
- if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40))
- return
- if (e.type === "cut") {
- avalon.nextTick(updateVModel)
- } else {
- updateVModel()
- }
- }
- events.forEach(function(type) {
- element.attachEvent("on" + type, removeFn)
- })
- data.rollback = function() {
- events.forEach(function(type) {
- element.detachEvent("on" + type, removeFn)
- })
- }
- }
- }
- }
- element.onTree = onTree
- launch(element)
- element.oldValue = element.value
- registerSubscriber(data)
- var timer = setTimeout(function() {
- if (!firstTigger) {
- callback.call(element, element.value)
- }
- clearTimeout(timer)
- }, 31)
- }
- var TimerID, ribbon = [],
- launch = noop
- function onTree() { //disabled状态下改动不触发inout事件
- if (!this.disabled && this.oldValue !== this.value) {
- var event = DOC.createEvent("Event")
- event.initEvent("input", true, true)
- this.dispatchEvent(event)
- }
- }
- function ticker() {
- for (var n = ribbon.length - 1; n >= 0; n--) {
- var el = ribbon[n]
- if (avalon.contains(root, el)) {
- el.onTree && el.onTree()
- } else if (!el.msRetain) {
- el.offTree && el.offTree()
- ribbon.splice(n, 1)
- }
- }
- if (!ribbon.length) {
- clearInterval(TimerID)
- }
- }
- function launchImpl(el) {
- if (ribbon.push(el) === 1) {
- TimerID = setInterval(ticker, 30)
- }
- }
- function newSetter(newValue) {
- oldSetter.call(this, newValue)
- if (newValue !== this.oldValue) {
- var event = DOC.createEvent("Event")
- event.initEvent("input", true, true)
- this.dispatchEvent(event)
- }
- }
- if (Object.getOwnPropertyNames) { //屏蔽IE8
- try {
- var inputProto = HTMLInputElement.prototype
- var oldSetter = Object.getOwnPropertyDescriptor(inputProto, "value").set //屏蔽chrome, safari,opera
- Object.defineProperty(inputProto, "value", {
- set: newSetter
- })
- } catch (e) {
- launch = launchImpl
- }
- }
- duplexBinding.SELECT = function(element, evaluator, data) {
- var $elem = avalon(element)
- function updateVModel() {
- if ($elem.data("duplex-observe") !== false) {
- var val = $elem.val() //字符串或字符串数组
- if (val + "" !== element.oldValue) {
- evaluator(val)
- element.oldValue = val + ""
- }
- data.changed.call(element, val)
- }
- }
- data.handler = function() {
- var curValue = evaluator()
- curValue = curValue && curValue.$model || curValue
- curValue = Array.isArray(curValue) ? curValue.map(String) : curValue + ""
- if (curValue + "" !== element.oldValue) {
- $elem.val(curValue)
- element.oldValue = curValue + ""
- }
- }
- data.bound("change", updateVModel)
- var innerHTML = NaN
- var id = setInterval(function() {
- var currHTML = element.innerHTML
- if (currHTML === innerHTML) {
- clearInterval(id)
- //先等到select里的option元素被扫描后,才根据model设置selected属性
- registerSubscriber(data)
- data.changed.call(element, evaluator())
- } else {
- innerHTML = currHTML
- }
- }, 20)
- }
- duplexBinding.TEXTAREA = duplexBinding.INPUT
- //============================= event binding =======================
- function fixEvent(event) {
- var ret = {}
- for (var i in event) {
- ret[i] = event[i]
- }
- var target = ret.target = event.srcElement
- if (event.type.indexOf("key") === 0) {
- ret.which = event.charCode != null ? event.charCode : event.keyCode
- } else if (/mouse|click/.test(event.type)) {
- var doc = target.ownerDocument || DOC
- var box = doc.compatMode === "BackCompat" ? doc.body : doc.documentElement
- ret.pageX = event.clientX + (box.scrollLeft >> 0) - (box.clientLeft >> 0)
- ret.pageY = event.clientY + (box.scrollTop >> 0) - (box.clientTop >> 0)
- }
- ret.timeStamp = new Date - 0
- ret.originalEvent = event
- ret.preventDefault = function() { //阻止默认行为
- event.returnValue = false
- }
- ret.stopPropagation = function() { //阻止事件在DOM树中的传播
- event.cancelBubble = true
- }
- return ret
- }
- var eventHooks = avalon.eventHooks
- //针对firefox, chrome修正mouseenter, mouseleave
- if (!("onmouseenter" in root)) {
- avalon.each({
- mouseenter: "mouseover",
- mouseleave: "mouseout"
- }, function(origType, fixType) {
- eventHooks[origType] = {
- type: fixType,
- deel: function(elem, fn) {
- return function(e) {
- var t = e.relatedTarget
- if (!t || (t !== elem && !(elem.compareDocumentPosition(t) & 16))) {
- delete e.type
- e.type = origType
- return fn.call(elem, e)
- }
- }
- }
- }
- })
- }
- //针对IE9+, w3c修正animationend
- avalon.each({
- AnimationEvent: "animationend",
- WebKitAnimationEvent: "webkitAnimationEnd"
- }, function(construct, fixType) {
- if (window[construct] && !eventHooks.animationend) {
- eventHooks.animationend = {
- type: fixType
- }
- }
- })
- //针对IE6-8修正input
- if (!("oninput" in document.createElement("input"))) {
- eventHooks.input = {
- type: "propertychange",
- deel: function(elem, fn) {
- return function(e) {
- if (e.propertyName === "value") {
- e.type = "input"
- return fn.call(elem, e)
- }
- }
- }
- }
- }
- if (document.onmousewheel === void 0) {
- /* IE6-11 chrome mousewheel wheelDetla 下 -120 上 120
- firefox DOMMouseScroll detail 下3 上-3
- firefox wheel detlaY 下3 上-3
- IE9-11 wheel deltaY 下40 上-40
- chrome wheel deltaY 下100 上-100 */
- eventHooks.mousewheel = {
- type: "DOMMouseScroll",
- deel: function(elem, fn) {
- return function(e) {
- e.wheelDelta = e.detail > 0 ? -120 : 120
- if (Object.defineProperty) {
- Object.defineProperty(e, "type", {
- value: "mousewheel"
- })
- }
- fn.call(elem, e)
- }
- }
- }
- }
- /*********************************************************************
- * 监控数组(与ms-each, ms-repeat配合使用) *
- **********************************************************************/
- function Collection(model) {
- var array = []
- array.$id = generateID()
- array[subscribers] = []
- array.$model = model // model.concat()
- array.$events = {} //VB对象的方法里的this并不指向自身,需要使用bind处理一下
- array._ = modelFactory({
- length: model.length
- })
- array._.$watch("length", function(a, b) {
- array.$fire("length", a, b)
- })
- for (var i in Observable) {
- array[i] = Observable[i]
- }
- avalon.mix(array, CollectionPrototype)
- return array
- }
- var _splice = ap.splice
- var CollectionPrototype = {
- _splice: _splice,
- _add: function(arr, pos) { //在第pos个位置上,添加一组元素
- var oldLength = this.length
- pos = typeof pos === "number" ? pos : oldLength
- var added = []
- for (var i = 0, n = arr.length; i < n; i++) {
- added[i] = convert(arr[i])
- }
- _splice.apply(this, [pos, 0].concat(added))
- notifySubscribers(this, "add", pos, added)
- if (!this._stopFireLength) {
- return this._.length = this.length
- }
- },
- _del: function(pos, n) { //在第pos个位置上,删除N个元素
- var ret = this._splice(pos, n)
- if (ret.length) {
- notifySubscribers(this, "del", pos, n)
- if (!this._stopFireLength) {
- this._.length = this.length
- }
- }
- return ret
- },
- push: function() {
- ap.push.apply(this.$model, arguments)
- var n = this._add(arguments)
- notifySubscribers(this, "index", n > 2 ? n - 2 : 0)
- return n
- },
- pushArray: function(array) {
- return this.push.apply(this, array)
- },
- unshift: function() {
- ap.unshift.apply(this.$model, arguments)
- var ret = this._add(arguments, 0) //返回长度
- notifySubscribers(this, "index", arguments.length)
- return ret
- },
- shift: function() {
- var el = this.$model.shift()
- this._del(0, 1)
- notifySubscribers(this, "index", 0)
- return el //返回被移除的元素
- },
- pop: function() {
- var el = this.$model.pop()
- this._del(this.length - 1, 1)
- return el //返回被移除的元素
- },
- splice: function(a, b) {
- // 必须存在第一个参数,需要大于-1, 为添加或删除元素的基点
- a = resetNumber(a, this.length)
- var removed = _splice.apply(this.$model, arguments),
- ret = []
- this._stopFireLength = true //确保在这个方法中 , $watch("length",fn)只触发一次
- if (removed.length) {
- ret = this._del(a, removed.length)
- if (arguments.length <= 2) { //如果没有执行添加操作,需要手动resetIndex
- notifySubscribers(this, "index", 0)
- }
- }
- if (arguments.length > 2) {
- this._add(aslice.call(arguments, 2), a)
- }
- this._stopFireLength = false
- this._.length = this.length
- return ret //返回被移除的元素
- },
- contains: function(el) { //判定是否包含
- return this.indexOf(el) !== -1
- },
- size: function() { //取得数组长度,这个函数可以同步视图,length不能
- return this._.length
- },
- remove: function(el) { //移除第一个等于给定值的元素
- return this.removeAt(this.indexOf(el))
- },
- removeAt: function(index) { //移除指定索引上的元素
- return index >= 0 ? this.splice(index, 1) : []
- },
- clear: function() {
- this.$model.length = this.length = this._.length = 0 //清空数组
- notifySubscribers(this, "clear", 0)
- return this
- },
- removeAll: function(all) { //移除N个元素
- if (Array.isArray(all)) {
- all.forEach(function(el) {
- this.remove(el)
- }, this)
- } else if (typeof all === "function") {
- for (var i = this.length - 1; i >= 0; i--) {
- var el = this[i]
- if (all(el, i)) {
- this.splice(i, 1)
- }
- }
- } else {
- this.clear()
- }
- },
- ensure: function(el) {
- if (!this.contains(el)) { //只有不存在才push
- this.push(el)
- }
- return this
- },
- set: function(index, val) {
- if (index >= 0) {
- var valueType = getType(val)
- if (val && val.$model) {
- val = val.$model
- }
- var target = this[index]
- if (valueType === "object") {
- for (var i in val) {
- if (target.hasOwnProperty(i)) {
- target[i] = val[i]
- }
- }
- } else if (valueType === "array") {
- target.clear().push.apply(target, val)
- } else if (target !== val) {
- this[index] = val
- this.$model[index] = val
- notifySubscribers(this, "set", index, val)
- }
- }
- return this
- }
- }
- "sort,reverse".replace(rword, function(method) {
- CollectionPrototype[method] = function() {
- var aaa = this.$model,
- bbb = aaa.slice(0),
- sorted = false
- ap[method].apply(aaa, arguments) //先移动model
- for (var i = 0, n = bbb.length; i < n; i++) {
- var a = aaa[i],
- b = bbb[i]
- if (!isEqual(a, b)) {
- sorted = true
- var index = bbb.indexOf(a, i)
- var remove = this._splice(index, 1)[0]
- var remove2 = bbb.splice(index, 1)[0]
- this._splice(i, 0, remove)
- bbb.splice(i, 0, remove2)
- notifySubscribers(this, "move", index, i)
- }
- }
- bbb = void 0
- if (sorted) {
- notifySubscribers(this, "index", 0)
- }
- return this
- }
- })
- function convert(val) {
- if (rcomplexType.test(avalon.type(val))) {
- val = val.$id ? val : modelFactory(val, val)
- }
- return val
- }
- //============ each/repeat/with binding 用到的辅助函数与对象 ======================
- //得到某一元素节点或文档碎片对象下的所有注释节点
- var queryComments = DOC.createTreeWalker ? function(parent) {
- var tw = DOC.createTreeWalker(parent, NodeFilter.SHOW_COMMENT, null, null),
- comment, ret = []
- while (comment = tw.nextNode()) {
- ret.push(comment)
- }
- return ret
- } : function(parent) {
- return parent.getElementsByTagName("!")
- }
- //将通过ms-if移出DOM树放进ifSanctuary的元素节点移出来,以便垃圾回收
- function expelFromSanctuary(parent) {
- var comments = queryComments(parent)
- for (var i = 0, comment; comment = comments[i++]; ) {
- if (comment.nodeValue == "ms-if") {
- cinerator.appendChild(comment.elem)
- }
- }
- while (comment = parent.firstChild) {
- cinerator.appendChild(comment)
- }
- cinerator.innerHTML = ""
- }
- function iteratorCallback(args) {
- var callback = getBindingCallback(this.callbackElement, this.callbackName, this.vmodels)
- if (callback) {
- var parent = this.parent
- checkScan(parent, function() {
- callback.apply(parent, args)
- })
- }
- }
- //为ms-each, ms-with, ms-repeat要循环的元素外包一个msloop临时节点,ms-controller的值为代理VM的$id
- function shimController(data, transation, spans, proxy) {
- var tview = data.template.cloneNode(true)
- var id = proxy.$id
- var span = tview.firstChild
- if (!data.fastRepeat) {
- span = DOC.createElement("msloop")
- span.style.display = "none"
- span.appendChild(tview)
- }
- span.setAttribute("ms-controller", id)
- spans.push(span)
- transation.appendChild(span)
- proxy.$outer = data.$outer
- VMODELS[id] = proxy
- function fn() {
- delete VMODELS[id]
- data.group = 1
- if (!data.fastRepeat) {
- data.group = span.childNodes.length
- span.parentNode.removeChild(span)
- while (span.firstChild) {
- transation.appendChild(span.firstChild)
- }
- if (fn.node !== void 0) {
- fn.parent.insertBefore(transation, fn.node)
- }
- }
- }
- return span.patchRepeat = fn
- }
- // 取得用于定位的节点。在绑定了ms-each, ms-with属性的元素里,它的整个innerHTML都会视为一个子模板先行移出DOM树,
- // 然后如果它的元素有多少个(ms-each)或键值对有多少双(ms-with),就将它复制多少份(多少为N),再经过扫描后,重新插入该元素中。
- // 这时该元素的孩子将分为N等分,每等份的第一个节点就是这个用于定位的节点,
- // 方便我们根据它算出整个等分的节点们,然后整体移除或移动它们。
- function getLocatedNode(parent, data, pos) {
- if (data.startRepeat) {
- var ret = data.startRepeat,
- end = data.endRepeat
- pos += 1
- for (var i = 0; i < pos; i++) {
- ret = ret.nextSibling
- if (ret == end)
- return end
- }
- return ret
- } else {
- return parent.childNodes[data.group * pos] || null
- }
- }
- function removeView(node, group, n) {
- var length = group * (n || 1)
- var view = hyperspace//.cloneNode(false)//???
- while (--length >= 0) {
- var nextSibling = node.nextSibling
- view.appendChild(node)
- node = nextSibling
- if (!node) {
- break
- }
- }
- return view
- }
- // 为ms-each, ms-repeat创建一个代理对象,通过它们能使用一些额外的属性与功能($index,$first,$last,$remove,$key,$val,$outer)
- var watchEachOne = oneObject("$index,$first,$last")
- function createWithProxy(key, val, $outer) {
- var proxy = modelFactory({
- $key: key,
- $outer: $outer,
- $val: val
- }, 0, {
- $val: 1,
- $key: 1
- })
- proxy.$id = "$proxy$with" + Math.random()
- return proxy
- }
- var eachProxyPool = []
- function getEachProxy(index, item, data, last) {
- var param = data.param || "el", proxy
- var source = {
- $remove: function() {
- return data.getter().removeAt(proxy.$index)
- },
- $itemName: param,
- $index: index,
- $outer: data.$outer,
- $first: index === 0,
- $last: index === last
- }
- source[param] = item
- for (var i = 0, n = eachProxyPool.length; i < n; i++) {
- var proxy = eachProxyPool[i]
- if (proxy.hasOwnProperty(param)) {
- for (var i in source) {
- proxy[i] = source[i]
- }
- eachProxyPool.splice(i, 1)
- return proxy
- }
- }
- if (rcomplexType.test(avalon.type(item))) {
- source.$skipArray = [param]
- }
- proxy = modelFactory(source, 0, watchEachOne)
- proxy.$id = "$proxy$" + data.type + Math.random()
- return proxy
- }
- function recycleEachProxy(proxy) {
- var obj = proxy.$accessors, name = proxy.$itemName;
- ["$index", "$last", "$first"].forEach(function(prop) {
- obj[prop][subscribers].length = 0
- })
- if (proxy[name][subscribers]) {
- proxy[name][subscribers].length = 0;
- }
- if (eachProxyPool.unshift(proxy) > kernel.maxRepeatSize) {
- eachProxyPool.pop()
- }
- }
- /*********************************************************************
- * 文本绑定里默认可用的过滤器 *
- **********************************************************************/
- var rscripts = /<script[^>]*>([\S\s]*?)<\/script\s*>/gim
- var raimg = /^<(a|img)\s/i
- var ron = /\s+(on[^=\s]+)(?:=("[^"]*"|'[^']*'|[^\s>]+))?/g
- var ropen = /<\w+\b(?:(["'])[^"]*?(\1)|[^>])*>/ig
- var rjavascripturl = /\s+(src|href)(?:=("javascript[^"]*"|'javascript[^']*'))?/ig
- var rsurrogate = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g
- var rnoalphanumeric = /([^\#-~| |!])/g;
- var filters = avalon.filters = {
- uppercase: function(str) {
- return str.toUpperCase()
- },
- lowercase: function(str) {
- return str.toLowerCase()
- },
- truncate: function(target, length, truncation) {
- //length,新字符串长度,truncation,新字符串的结尾的字段,返回新字符串
- length = length || 30
- truncation = truncation === void(0) ? "..." : truncation
- return target.length > length ? target.slice(0, length - truncation.length) + truncation : String(target)
- },
- camelize: camelize,
- sanitize: function(str) {
- return str.replace(rscripts, "").replace(ropen, function(a, b) {
- if (raimg.test(a)) {
- a = a.replace(rjavascripturl, "")//移除javascript伪协议
- }
- return a.replace(ron, " ").replace(/\s+/g, " ")//移除onXXX事件
- })
- },
- escape: function(html) {
- //将字符串经过 html 转义得到适合在页面中显示的内容, 例如替换 < 为 <
- return String(html).
- replace(/&/g, '&').
- replace(rsurrogate, function(value) {
- var hi = value.charCodeAt(0)
- var low = value.charCodeAt(1)
- return '&#' + (((hi - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000) + ';'
- }).
- replace(rnoalphanumeric, function(value) {
- return '&#' + value.charCodeAt(0) + ';'
- }).
- replace(/</g, '<').
- replace(/>/g, '>')
- },
- currency: function(number, symbol) {
- symbol = symbol || "¥"
- return symbol + avalon.filters.number(number)
- },
- number: function(number, decimals, dec_point, thousands_sep) {
- //与PHP的number_format完全兼容
- //number 必需,要格式化的数字
- //decimals 可选,规定多少个小数位。
- //dec_point 可选,规定用作小数点的字符串(默认为 . )。
- //thousands_sep 可选,规定用作千位分隔符的字符串(默认为 , ),如果设置了该参数,那么所有其他参数都是必需的。
- // http://kevin.vanzonneveld.net
- number = (number + "").replace(/[^0-9+\-Ee.]/g, "")
- var n = !isFinite(+number) ? 0 : +number,
- prec = !isFinite(+decimals) ? 0 : Math.abs(decimals),
- sep = thousands_sep || ",",
- dec = dec_point || ".",
- s = "",
- toFixedFix = function(n, prec) {
- var k = Math.pow(10, prec)
- return "" + Math.round(n * k) / k
- }
- // Fix for IE parseFloat(0.55).toFixed(0) = 0
- s = (prec ? toFixedFix(n, prec) : "" + Math.round(n)).split('.')
- if (s[0].length > 3) {
- s[0] = s[0].replace(/\B(?=(?:\d{3})+(?!\d))/g, sep)
- }
- if ((s[1] || "").length < prec) {
- s[1] = s[1] || ""
- s[1] += new Array(prec - s[1].length + 1).join("0")
- }
- return s.join(dec)
- }
- }
- /*
- 'yyyy': 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)
- 'yy': 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)
- 'y': 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)
- 'MMMM': Month in year (January-December)
- 'MMM': Month in year (Jan-Dec)
- 'MM': Month in year, padded (01-12)
- 'M': Month in year (1-12)
- 'dd': Day in month, padded (01-31)
- 'd': Day in month (1-31)
- 'EEEE': Day in Week,(Sunday-Saturday)
- 'EEE': Day in Week, (Sun-Sat)
- 'HH': Hour in day, padded (00-23)
- 'H': Hour in day (0-23)
- 'hh': Hour in am/pm, padded (01-12)
- 'h': Hour in am/pm, (1-12)
- 'mm': Minute in hour, padded (00-59)
- 'm': Minute in hour (0-59)
- 'ss': Second in minute, padded (00-59)
- 's': Second in minute (0-59)
- 'a': am/pm marker
- 'Z': 4 digit (+sign) representation of the timezone offset (-1200-+1200)
- format string can also be one of the following predefined localizable formats:
-
- 'medium': equivalent to 'MMM d, y h:mm:ss a' for en_US locale (e.g. Sep 3, 2010 12:05:08 pm)
- 'short': equivalent to 'M/d/yy h:mm a' for en_US locale (e.g. 9/3/10 12:05 pm)
- 'fullDate': equivalent to 'EEEE, MMMM d,y' for en_US locale (e.g. Friday, September 3, 2010)
- 'longDate': equivalent to 'MMMM d, y' for en_US locale (e.g. September 3, 2010
- 'mediumDate': equivalent to 'MMM d, y' for en_US locale (e.g. Sep 3, 2010)
- 'shortDate': equivalent to 'M/d/yy' for en_US locale (e.g. 9/3/10)
- 'mediumTime': equivalent to 'h:mm:ss a' for en_US locale (e.g. 12:05:08 pm)
- 'shortTime': equivalent to 'h:mm a' for en_US locale (e.g. 12:05 pm)
- */
- new function() {
- function toInt(str) {
- return parseInt(str, 10)
- }
- function padNumber(num, digits, trim) {
- var neg = ""
- if (num < 0) {
- neg = '-'
- num = -num
- }
- num = "" + num
- while (num.length < digits)
- num = "0" + num
- if (trim)
- num = num.substr(num.length - digits)
- return neg + num
- }
- function dateGetter(name, size, offset, trim) {
- return function(date) {
- var value = date["get" + name]()
- if (offset > 0 || value > -offset)
- value += offset
- if (value === 0 && offset === -12) {
- value = 12
- }
- return padNumber(value, size, trim)
- }
- }
- function dateStrGetter(name, shortForm) {
- return function(date, formats) {
- var value = date["get" + name]()
- var get = (shortForm ? ("SHORT" + name) : name).toUpperCase()
- return formats[get][value]
- }
- }
- function timeZoneGetter(date) {
- var zone = -1 * date.getTimezoneOffset()
- var paddedZone = (zone >= 0) ? "+" : ""
- paddedZone += padNumber(Math[zone > 0 ? "floor" : "ceil"](zone / 60), 2) + padNumber(Math.abs(zone % 60), 2)
- return paddedZone
- }
- //取得上午下午
- function ampmGetter(date, formats) {
- return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1]
- }
- var DATE_FORMATS = {
- yyyy: dateGetter("FullYear", 4),
- yy: dateGetter("FullYear", 2, 0, true),
- y: dateGetter("FullYear", 1),
- MMMM: dateStrGetter("Month"),
- MMM: dateStrGetter("Month", true),
- MM: dateGetter("Month", 2, 1),
- M: dateGetter("Month", 1, 1),
- dd: dateGetter("Date", 2),
- d: dateGetter("Date", 1),
- HH: dateGetter("Hours", 2),
- H: dateGetter("Hours", 1),
- hh: dateGetter("Hours", 2, -12),
- h: dateGetter("Hours", 1, -12),
- mm: dateGetter("Minutes", 2),
- m: dateGetter("Minutes", 1),
- ss: dateGetter("Seconds", 2),
- s: dateGetter("Seconds", 1),
- sss: dateGetter("Milliseconds", 3),
- EEEE: dateStrGetter("Day"),
- EEE: dateStrGetter("Day", true),
- a: ampmGetter,
- Z: timeZoneGetter
- }
- var DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+|H+|h+|m+|s+|a|Z))(.*)/,
- NUMBER_STRING = /^\d+$/
- var R_ISO8601_STR = /^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?::?(\d\d)(?::?(\d\d)(?:\.(\d+))?)?)?(Z|([+-])(\d\d):?(\d\d))?)?$/
- // 1 2 3 4 5 6 7 8 9 10 11
- function jsonStringToDate(string) {
- var match
- if (match = string.match(R_ISO8601_STR)) {
- var date = new Date(0),
- tzHour = 0,
- tzMin = 0,
- dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,
- timeSetter = match[8] ? date.setUTCHours : date.setHours
- if (match[9]) {
- tzHour = toInt(match[9] + match[10])
- tzMin = toInt(match[9] + match[11])
- }
- dateSetter.call(date, toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]))
- var h = toInt(match[4] || 0) - tzHour
- var m = toInt(match[5] || 0) - tzMin
- var s = toInt(match[6] || 0)
- var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000)
- timeSetter.call(date, h, m, s, ms)
- return date
- }
- return string
- }
- var rfixFFDate = /^(\d+)-(\d+)-(\d{4})$/
- var rfixIEDate = /^(\d+)\s+(\d+),(\d{4})$/
- filters.date = function(date, format) {
- var locate = filters.date.locate,
- text = "",
- parts = [],
- fn, match
- format = format || "mediumDate"
- format = locate[format] || format
- if (typeof date === "string") {
- if (NUMBER_STRING.test(date)) {
- date = toInt(date)
- } else {
- var trimDate = date.trim()
- if (trimDate.match(rfixFFDate) || trimDate.match(rfixIEDate)) {
- date = RegExp.$3 + "/" + RegExp.$1 + "/" + RegExp.$2
- }
- date = jsonStringToDate(date)
- }
- date = new Date(date)
- }
- if (typeof date === "number") {
- date = new Date(date)
- }
- if (getType(date) !== "date") {
- return
- }
- while (format) {
- match = DATE_FORMATS_SPLIT.exec(format)
- if (match) {
- parts = parts.concat(match.slice(1))
- format = parts.pop()
- } else {
- parts.push(format)
- format = null
- }
- }
- parts.forEach(function(value) {
- fn = DATE_FORMATS[value]
- text += fn ? fn(date, locate) : value.replace(/(^'|'$)/g, "").replace(/''/g, "'")
- })
- return text
- }
- var locate = {
- AMPMS: {
- 0: "上午",
- 1: "下午"
- },
- DAY: {
- 0: "星期日",
- 1: "星期一",
- 2: "星期二",
- 3: "星期三",
- 4: "星期四",
- 5: "星期五",
- 6: "星期六"
- },
- MONTH: {
- 0: "1月",
- 1: "2月",
- 2: "3月",
- 3: "4月",
- 4: "5月",
- 5: "6月",
- 6: "7月",
- 7: "8月",
- 8: "9月",
- 9: "10月",
- 10: "11月",
- 11: "12月"
- },
- SHORTDAY: {
- "0": "周日",
- "1": "周一",
- "2": "周二",
- "3": "周三",
- "4": "周四",
- "5": "周五",
- "6": "周六"
- },
- fullDate: "y年M月d日EEEE",
- longDate: "y年M月d日",
- medium: "yyyy-M-d ah:mm:ss",
- mediumDate: "yyyy-M-d",
- mediumTime: "ah:mm:ss",
- "short": "yy-M-d ah:mm",
- shortDate: "yy-M-d",
- shortTime: "ah:mm"
- }
- locate.SHORTMONTH = locate.MONTH
- filters.date.locate = locate
- }
- /*********************************************************************
- * AMD Loader *
- **********************************************************************/
- var innerRequire
- var modules = avalon.modules = {
- "ready!": {
- exports: avalon
- },
- "avalon": {
- exports: avalon,
- state: 2
- }
- }
- new function() {
- var loadings = [] //正在加载中的模块列表
- var factorys = [] //储存需要绑定ID与factory对应关系的模块(标准浏览器下,先parse的script节点会先onload)
- var basepath
- function cleanUrl(url) {
- return (url || "").replace(/[?#].*/, "")
- }
- plugins.js = function(url, shim) {
- var id = cleanUrl(url)
- if (!modules[id]) { //如果之前没有加载过
- modules[id] = {
- id: id,
- exports: {}
- }
- if (shim) { //shim机制
- innerRequire(shim.deps || "", function() {
- loadJS(url, id, function() {
- modules[id].state = 2
- if (shim.exports)
- modules[id].exports = typeof shim.exports === "function" ?
- shim.exports() : window[shim.exports]
- innerRequire.checkDeps()
- })
- })
- } else {
- loadJS(url, id)
- }
- }
- return id
- }
- plugins.css = function(url) {
- var id = url.replace(/(#.+|\W)/g, "") ////用于处理掉href中的hash与所有特殊符号
- if (!DOC.getElementById(id)) {
- var node = DOC.createElement("link")
- node.rel = "stylesheet"
- node.href = url
- node.id = id
- head.insertBefore(node, head.firstChild)
- }
- }
- plugins.css.ext = ".css"
- plugins.js.ext = ".js"
- plugins.text = function(url) {
- var xhr = getXHR()
- var id = url.replace(/[?#].*/, "")
- modules[id] = {}
- xhr.onreadystatechange = function() {
- if (xhr.readyState === 4) {
- var status = xhr.status;
- if (status > 399 && status < 600) {
- avalon.error(url + " 对应资源不存在或没有开启 CORS")
- } else {
- modules[id].state = 2
- modules[id].exports = xhr.responseText
- innerRequire.checkDeps()
- }
- }
- }
- xhr.open("GET", url, true)
- if ("withCredentials" in xhr) {
- xhr.withCredentials = true
- }
- xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest")
- xhr.send()
- return id
- }
- var cur = getCurrentScript(true)
- if (!cur) { //处理window safari的Error没有stack的问题
- cur = avalon.slice(DOC.scripts).pop().src
- }
- var url = cleanUrl(cur)
- basepath = kernel.base = url.slice(0, url.lastIndexOf("/") + 1)
- function getCurrentScript(base) {
- // 参考 https://github.com/samyk/jiagra/blob/master/jiagra.js
- var stack
- try {
- a.b.c() //强制报错,以便捕获e.stack
- } catch (e) { //safari的错误对象只有line,sourceId,sourceURL
- stack = e.stack
- if (!stack && window.opera) {
- //opera 9没有e.stack,但有e.Backtrace,但不能直接取得,需要对e对象转字符串进行抽取
- stack = (String(e).match(/of linked script \S+/g) || []).join(" ")
- }
- }
- if (stack) {
- /**e.stack最后一行在所有支持的浏览器大致如下:
- *chrome23:
- * at http://113.93.50.63/data.js:4:1
- *firefox17:
- *@http://113.93.50.63/query.js:4
- *opera12:http://www.oldapps.com/opera.php?system=Windows_XP
- *@http://113.93.50.63/data.js:4
- *IE10:
- * at Global code (http://113.93.50.63/data.js:4:1)
- * //firefox4+ 可以用document.currentScript
- */
- stack = stack.split(/[@ ]/g).pop() //取得最后一行,最后一个空格或@之后的部分
- stack = stack[0] === "(" ? stack.slice(1, -1) : stack.replace(/\s/, "") //去掉换行符
- return stack.replace(/(:\d+)?:\d+$/i, "") //去掉行号与或许存在的出错字符起始位置
- }
- var nodes = (base ? DOC : head).getElementsByTagName("script") //只在head标签中寻找
- for (var i = nodes.length, node; node = nodes[--i]; ) {
- if ((base || node.className === subscribers) && node.readyState === "interactive") {
- return node.className = node.src
- }
- }
- }
- function checkCycle(deps, nick) {
- //检测是否存在循环依赖
- for (var id in deps) {
- if (deps[id] === "司徒正美" && modules[id].state !== 2 && (id === nick || checkCycle(modules[id].deps, nick))) {
- return true
- }
- }
- }
- function checkDeps() {
- //检测此JS模块的依赖是否都已安装完毕,是则安装自身
- loop: for (var i = loadings.length, id; id = loadings[--i]; ) {
- var obj = modules[id],
- deps = obj.deps
- for (var key in deps) {
- if (ohasOwn.call(deps, key) && modules[key].state !== 2) {
- continue loop
- }
- }
- //如果deps是空对象或者其依赖的模块的状态都是2
- if (obj.state !== 2) {
- loadings.splice(i, 1) //必须先移除再安装,防止在IE下DOM树建完后手动刷新页面,会多次执行它
- fireFactory(obj.id, obj.args, obj.factory)
- checkDeps() //如果成功,则再执行一次,以防有些模块就差本模块没有安装好
- }
- }
- }
- function checkFail(node, onError, fuckIE) {
- var id = cleanUrl(node.src) //检测是否死链
- node.onload = node.onreadystatechange = node.onerror = null
- if (onError || (fuckIE && !modules[id].state)) {
- setTimeout(function() {
- head.removeChild(node)
- node = null // 处理旧式IE下的循环引用问题
- })
- log("debug: 加载 " + id + " 失败" + onError + " " + (!modules[id].state))
- } else {
- return true
- }
- }
- var rdeuce = /\/\w+\/\.\./
- function loadResources(url, parent, ret, shim) {
- //1. 特别处理mass|ready标识符
- if (url === "ready!" || (modules[url] && modules[url].state === 2)) {
- return url
- }
- //2. 处理text! css! 等资源
- var plugin
- url = url.replace(/^\w+!/, function(a) {
- plugin = a.slice(0, -1)
- return ""
- })
- plugin = plugin || "js"
- plugin = plugins[plugin] || noop
- //3. 转化为完整路径
- if (typeof kernel.shim[url] === "object") {
- shim = kernel.shim[url]
- }
- if (kernel.paths[url]) { //别名机制
- url = kernel.paths[url]
- }
- //4. 补全路径
- if (/^(\w+)(\d)?:.*/.test(url)) {
- ret = url
- } else {
- parent = parent.substr(0, parent.lastIndexOf("/"))
- var tmp = url.charAt(0)
- if (tmp !== "." && tmp !== "/") { //相对于根路径
- ret = basepath + url
- } else if (url.slice(0, 2) === "./") { //相对于兄弟路径
- ret = parent + url.slice(1)
- } else if (url.slice(0, 2) === "..") { //相对于父路径
- ret = parent + "/" + url
- while (rdeuce.test(ret)) {
- ret = ret.replace(rdeuce, "")
- }
- } else if (tmp === "/") {
- ret = parent + url //相对于兄弟路径
- } else {
- avalon.error("不符合模块标识规则: " + url)
- }
- }
- //5. 补全扩展名
- url = cleanUrl(ret)
- var ext = plugin.ext
- if (ext) {
- if (url.slice(0 - ext.length) !== ext) {
- ret += ext
- }
- }
- //6. 缓存处理
- if (kernel.nocache) {
- ret += (ret.indexOf("?") === -1 ? "?" : "&") + (new Date - 0)
- }
- return plugin(ret, shim)
- }
- function loadJS(url, id, callback) {
- //通过script节点加载目标模块
- var node = DOC.createElement("script")
- node.className = subscribers //让getCurrentScript只处理类名为subscribers的script节点
- node[W3C ? "onload" : "onreadystatechange"] = function() {
- if (W3C || /loaded|complete/i.test(node.readyState)) {
- //mass Framework会在_checkFail把它上面的回调清掉,尽可能释放回存,尽管DOM0事件写法在IE6下GC无望
- var factory = factorys.pop()
- factory && factory.delay(id)
- if (callback) {
- callback()
- }
- if (checkFail(node, false, !W3C)) {
- log("debug: 已成功加载 " + url)
- }
- }
- }
- node.onerror = function() {
- checkFail(node, true)
- }
- node.src = url //插入到head的第一个节点前,防止IE6下head标签没闭合前使用appendChild抛错
- head.insertBefore(node, head.firstChild) //chrome下第二个参数不能为null
- log("debug: 正准备加载 " + url) //更重要的是IE6下可以收窄getCurrentScript的寻找范围
- }
- innerRequire = avalon.require = function(list, factory, parent) {
- // 用于检测它的依赖是否都为2
- var deps = {},
- // 用于保存依赖模块的返回值
- args = [],
- // 需要安装的模块数
- dn = 0,
- // 已安装完的模块数
- cn = 0,
- id = parent || "callback" + setTimeout("1")
- parent = parent || basepath
- String(list).replace(rword, function(el) {
- var url = loadResources(el, parent)
- if (url) {
- dn++
- if (modules[url] && modules[url].state === 2) {
- cn++
- }
- if (!deps[url]) {
- args.push(url)
- deps[url] = "司徒正美" //去重
- }
- }
- })
- modules[id] = {//创建一个对象,记录模块的加载情况与其他信息
- id: id,
- factory: factory,
- deps: deps,
- args: args,
- state: 1
- }
- if (dn === cn) { //如果需要安装的等于已安装好的
- fireFactory(id, args, factory) //安装到框架中
- } else {
- //放到检测列队中,等待checkDeps处理
- loadings.unshift(id)
- }
- checkDeps()
- }
- /**
- * 定义模块
- * @param {String} id ? 模块ID
- * @param {Array} deps ? 依赖列表
- * @param {Function} factory 模块工厂
- * @api public
- */
- innerRequire.define = function(id, deps, factory) { //模块名,依赖列表,模块本身
- var args = aslice.call(arguments)
- if (typeof id === "string") {
- var _id = args.shift()
- }
- if (typeof args[0] === "function") {
- args.unshift([])
- } //上线合并后能直接得到模块ID,否则寻找当前正在解析中的script节点的src作为模块ID
- //现在除了safari外,我们都能直接通过getCurrentScript一步到位得到当前执行的script节点,
- //safari可通过onload+delay闭包组合解决
- var name = modules[_id] && modules[_id].state >= 1 ? _id : cleanUrl(getCurrentScript())
- if (!modules[name] && _id) {
- modules[name] = {
- id: name,
- factory: factory,
- state: 1
- }
- }
- factory = args[1]
- factory.id = _id //用于调试
- factory.delay = function(d) {
- args.push(d)
- var isCycle = true
- try {
- isCycle = checkCycle(modules[d].deps, d)
- } catch (e) {
- }
- if (isCycle) {
- avalon.error(d + "模块与之前的模块存在循环依赖,请不要直接用script标签引入" + d + "模块")
- }
- delete factory.delay //释放内存
- innerRequire.apply(null, args) //0,1,2 --> 1,2,0
- }
- if (name) {
- factory.delay(name, args)
- } else { //先进先出
- factorys.push(factory)
- }
- }
- innerRequire.define.amd = modules
- function fireFactory(id, deps, factory) {
- for (var i = 0, array = [], d; d = deps[i++]; ) {
- array.push(modules[d].exports)
- }
- var module = Object(modules[id]),
- ret = factory.apply(window, array)
- module.state = 2
- if (ret !== void 0) {
- modules[id].exports = ret
- }
- return ret
- }
- innerRequire.config = kernel
- innerRequire.checkDeps = checkDeps
- }
- /*********************************************************************
- * DOMReady *
- **********************************************************************/
- var ready = W3C ? "DOMContentLoaded" : "readystatechange"
- function fireReady() {
- if (DOC.body) { // 在IE8 iframe中doScrollCheck可能不正确
- modules["ready!"].state = 2
- innerRequire.checkDeps()
- fireReady = noop //隋性函数,防止IE9二次调用_checkDeps
- }
- }
- function doScrollCheck() {
- try { //IE下通过doScrollCheck检测DOM树是否建完
- root.doScroll("left")
- fireReady()
- } catch (e) {
- setTimeout(doScrollCheck)
- }
- }
- if (DOC.readyState === "complete") {
- setTimeout(fireReady) //如果在domReady之外加载
- } else if (W3C) {
- DOC.addEventListener(ready, fireReady)
- window.addEventListener("load", fireReady)
- } else {
- DOC.attachEvent("onreadystatechange", function() {
- if (DOC.readyState === "complete") {
- fireReady()
- }
- })
- window.attachEvent("onload", fireReady)
- if (root.doScroll) {
- doScrollCheck()
- }
- }
- avalon.config({
- loader: true
- })
- avalon.ready = function(fn) {
- innerRequire("ready!", fn)
- }
- avalon.ready(function() {
- //IE6-9下这个通常只要1ms,而且没有副作用,不会发出请求,setImmediate如果只执行一次,与setTimeout一样要140ms上下
- if (window.VBArray && !window.setImmediate) {
- var handlerQueue = []
- function drainQueue() {
- var fn = handlerQueue.shift()
- if (fn) {
- fn()
- if (handlerQueue.length) {
- avalon.nextTick()
- }
- }
- }
- avalon.nextTick = function(callback) {
- if (typeof callback === "function") {
- handlerQueue.push(callback)
- }
- var node = DOC.createElement("script")
- node.onreadystatechange = function() {
- drainQueue() //在interactive阶段就触发
- node.onreadystatechange = null
- head.removeChild(node)
- node = null
- }
- head.appendChild(node)
- }
- }
- avalon.scan(DOC.body)
- })
- })(document)
- /**
- http://www.cnblogs.com/henryzhu/p/mvvm-1-why-mvvm.ht
- http://dev.oupeng.com/wp-content/uploads/20131109-kennyluck-optimizing-js-games.html#controls-slide
- */