/*================================================== Copyright (c) 2013-2015 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.js 1.4.7.2 built in 2016.9.12 support IE6+ and other browsers ==================================================*/ (function(global, factory) { if (typeof module === "object" && typeof module.exports === "object") { // For CommonJS and CommonJS-like environments where a proper `window` // is present, execute the factory and get avalon. // For environments that do not have a `window` with a `document` // (such as Node.js), expose a factory as module.exports. // This accentuates the need for the creation of a real `window`. // e.g. var avalon = require("avalon")(window); module.exports = global.document ? factory(global, true) : function(w) { if (!w.document) { throw new Error("Avalon requires a window with a document") } return factory(w) } } else { factory(global) } // Pass this if window is not defined yet }(typeof window !== "undefined" ? window : this, function(window, noGlobal){ /********************************************************************* * 全局变量及方法 * **********************************************************************/ var expose = new Date() - 0 //http://stackoverflow.com/questions/7290086/javascript-use-strict-and-nicks-find-global-function var DOC = window.document var head = DOC.getElementsByTagName("head")[0] //HEAD元素 var ifGroup = head.insertBefore(document.createElement("avalon"), head.firstChild) //避免IE6 base标签BUG ifGroup.innerHTML = "X" ifGroup.setAttribute("ms-skip", "1") ifGroup.className = "avalonHide" var rnative = /\[native code\]/ //判定是否原生函数 function log() { if (window.console && avalon.config.debug) { // http://stackoverflow.com/questions/8785624/how-to-safely-wrap-console-log Function.apply.call(console.log, console, arguments) } } var subscribers = "$" + expose var stopRepeatAssign = false var rword = /[^, ]+/g //切割字符串为一个个小块,以空格或豆号分开它们,结合replace实现字符串的forEach var rcomplexType = /^(?:object|array)$/ var rsvg = /^\[object SVG\w*Element\]$/ 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 W3C = window.dispatchEvent var root = DOC.documentElement var avalonFragment = 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 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 } //生成UUID http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript var generateID = function (prefix) { prefix = prefix || "avalon" return String(Math.random() + Math.random()).replace(/\d\.\d{4}/, prefix) } function IE() { if (window.VBArray) { var mode = document.documentMode return mode ? mode : window.XMLHttpRequest ? 7 : 6 } else { return NaN } } var IEVersion = IE() avalon = function (el) { //创建jQuery式的无new 实例化结构 return new avalon.init(el) } avalon.profile = function () { if (window.console && avalon.config.profile) { Function.apply.call(console.log, console, arguments) } } /*视浏览器情况采用最快的异步回调*/ avalon.nextTick = new function () {// jshint ignore:line var tickImmediate = window.setImmediate var tickObserver = window.MutationObserver if (tickImmediate) {//IE10?\11 edage return tickImmediate.bind(window) } var queue = [] function callback() { var n = queue.length for (var i = 0; i < n; i++) { queue[i]() } queue = queue.slice(n) } if (tickObserver) {//?支持MutationObserver var node = document.createTextNode("avalon") new tickObserver(callback).observe(node, {characterData: true})// jshint ignore:line return function (fn) { queue.push(fn) node.data = Math.random() } } if (window.VBArray) { return function (fn) { queue.push(fn) var node = DOC.createElement("script") node.onreadystatechange = function () { callback() //在interactive阶段就触发 node.onreadystatechange = null head.removeChild(node) node = null } head.appendChild(node) } } return function (fn) { setTimeout(fn, 4) } }// jshint ignore:line /********************************************************************* * avalon的静态方法定义区 * **********************************************************************/ avalon.init = function (el) { this[0] = this.element = el } avalon.fn = avalon.prototype = avalon.init.prototype avalon.type = function (obj) { //取得目标的类型 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 } var isFunction = typeof alert === "object" ? function (fn) { try { return /^\s*\bfunction\b/.test(fn + "") } catch (e) { return false } } : function (fn) { return serialize.call(fn) === "[object Function]" } avalon.isFunction = isFunction 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 //jshint ignore:line } function isWindow(obj) { return rwindow.test(serialize.call(obj)) } if (isWindow(window)) { avalon.isWindow = isWindow } var enu for (enu in avalon({})) { break } var enumerateBUG = enu !== "0" //IE6下为true, 其他为false /*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, key) { if (!obj || avalon.type(obj) !== "object" || obj.nodeType || avalon.isWindow(obj)) { return false; } try { //IE内置对象没有constructor if (obj.constructor && !ohasOwn.call(obj, "constructor") && !ohasOwn.call(obj.constructor.prototype, "isPrototypeOf")) { return false; } } catch (e) { //IE8 9会在这里抛错 return false; } if (enumerateBUG) { for (key in obj) { return ohasOwn.call(obj, key) } } for (key in obj) { } return key === void 0 || ohasOwn.call(obj, key) } if (rnative.test(Object.getPrototypeOf)) { avalon.isPlainObject = function (obj) { // 简单的 typeof obj === "object"检测,会致使用isPlainObject(window)在opera下通不过 return serialize.call(obj) === "[object Object]" && Object.getPrototypeOf(obj) === oproto } } //与jQuery.extend方法,可用于浅拷贝,深拷贝 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" && !isFunction(target)) { 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] try { copy = options[name] //当options为VBS对象时报错 } catch (e) { continue } // 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 _number(a, len) { //用于模拟slice, splice的效果 a = Math.floor(a) || 0 return a < 0 ? Math.max(len + a, 0) : Math.min(a, len); } avalon.mix({ rword: rword, subscribers: subscribers, version: 1.472, ui: {}, log: log, slice: W3C ? function (nodes, start, end) { return aslice.call(nodes, start, end) } : function (nodes, start, end) { var ret = [] var len = nodes.length if (end === void 0) end = len if (typeof end === "number" && isFinite(end)) { start = _number(start, len) end = _number(end, len) 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 (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 = new 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 || type phase = hook.phase || !!phase fn = hook.fn ? hook.fn(el,fn): fn } var callback = W3C ? fn : function (e) { 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 || type phase = hook.phase || !!phase } 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, fn name = avalon.cssName(prop) || prop if (value === void 0 || typeof value === "boolean") { //获取样式 fn = cssHooks[prop + ":get"] || cssHooks["@:get"] if (name === "background") { name = "backgroundColor" } 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++) { if (fn(i, obj[i]) === false) break } } else { for (i in obj) { if (obj.hasOwnProperty(i) && fn(i, obj[i]) === false) { break } } } } }, //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) { return target.push(item) } }, /*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 } } }) var bindingHandlers = avalon.bindingHandlers = {} var bindingExecutors = avalon.bindingExecutors = {} /*判定是否类数组,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) return false var n = obj.length if (n === (n >>> 0)) { //检测length属性是否为非负整数 var type = serialize.call(obj).slice(8, -1) if (/(?:regexp|string|function|window|global)$/i.test(type)) return false if (type === "Array") return true try { if ({}.propertyIsEnumerable.call(obj, "length") === false) { //如果是原生对象 return /^\s?function/.test(obj.item || obj.callee) } return true } catch (e) { //IE的NodeList直接抛错 return !obj.window //IE6-8 window } } return false } // https://github.com/rsms/js-lru var Cache = new function() {// jshint ignore:line function LRU(maxLength) { this.size = 0 this.limit = maxLength this.head = this.tail = void 0 this._keymap = {} } var p = LRU.prototype p.put = function(key, value) { var entry = { key: key, value: value } this._keymap[key] = entry if (this.tail) { this.tail.newer = entry entry.older = this.tail } else { this.head = entry } this.tail = entry if (this.size === this.limit) { this.shift() } else { this.size++ } return value } p.shift = function() { var entry = this.head if (entry) { this.head = this.head.newer this.head.older = entry.newer = entry.older = this._keymap[entry.key] = void 0 delete this._keymap[entry.key] //#1029 } } p.get = function(key) { var entry = this._keymap[key] if (entry === void 0) return if (entry === this.tail) { return entry.value } // HEAD--------------TAIL // <.older .newer> // <--- add direction -- // A B C E if (entry.newer) { if (entry === this.head) { this.head = entry.newer } entry.newer.older = entry.older // C <-- E. } if (entry.older) { entry.older.newer = entry.newer // C. --> E } entry.newer = void 0 // D --x entry.older = this.tail // D. --> E if (this.tail) { this.tail.newer = entry // E. <-- D } this.tail = entry return entry.value } return LRU }// jshint ignore:line /********************************************************************* * javascript 底层补丁 * **********************************************************************/ if (!"司徒正美".trim) { var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g String.prototype.trim = function () { return this.replace(rtrim, "") } } var hasDontEnumBug = !({ 'toString': null }).propertyIsEnumerable('toString'), hasProtoEnumBug = (function () { }).propertyIsEnumerable('prototype'), dontEnums = [ "toString", "toLocaleString", "valueOf", "hasOwnProperty", "isPrototypeOf", "propertyIsEnumerable", "constructor" ], dontEnumsLength = dontEnums.length; if (!Object.keys) { Object.keys = function (object) { //ecma262v5 15.2.3.14 var theKeys = [] var skipProto = hasProtoEnumBug && typeof object === "function" if (typeof object === "string" || (object && object.callee)) { for (var i = 0; i < object.length; ++i) { theKeys.push(String(i)) } } else { for (var name in object) { if (!(skipProto && name === "prototype") && ohasOwn.call(object, name)) { theKeys.push(String(name)) } } } if (hasDontEnumBug) { var ctor = object.constructor, skipConstructor = ctor && ctor.prototype === object for (var j = 0; j < dontEnumsLength; j++) { var dontEnum = dontEnums[j] if (!(skipConstructor && dontEnum === "constructor") && ohasOwn.call(object, dontEnum)) { theKeys.push(dontEnum) } } } return theKeys } } if (!Array.isArray) { Array.isArray = function (a) { return serialize.call(a) === "[object 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 /* jshint ignore:start */ return Function("fn,scope", fun) /* jshint ignore:end */ } 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') }) } /********************************************************************* * DOM 底层补丁 * **********************************************************************/ function fixContains(root, el) { try { //IE6-8,游离于DOM树外的文本节点,访问parentNode有时会抛错 while ((el = el.parentNode)) if (el === root) return true return false } catch (e) { return false } } avalon.contains = fixContains //IE6-11的文档对象没有contains if (!DOC.contains) { DOC.contains = function (b) { return fixContains(DOC, b) } } function outerHTML() { return new XMLSerializer().serializeToString(this) } if (window.SVGElement) { //safari5+是把contains方法放在Element.prototype上而不是Node.prototype if (!DOC.createTextNode("x").contains) { Node.prototype.contains = function (arg) {//IE6-8没有Node对象 return !!(this.compareDocumentPosition(arg) & 16) } } var svgns = "http://www.w3.org/2000/svg" var svg = DOC.createElementNS(svgns, "svg") svg.innerHTML = '' if (!rsvg.test(svg.firstChild)) { // #409 function enumerateNode(node, targetNode) {// jshint ignore:line if (node && node.childNodes) { var nodes = node.childNodes for (var i = 0, el; el = nodes[i++]; ) { if (el.tagName) { var svg = DOC.createElementNS(svgns, el.tagName.toLowerCase()) ap.forEach.call(el.attributes, function (attr) { svg.setAttribute(attr.name, attr.value) //复制属性 })// jshint ignore:line // 递归处理子节点 enumerateNode(el, svg) targetNode.appendChild(svg) } } } } Object.defineProperties(SVGElement.prototype, { "outerHTML": {//IE9-11,firefox不支持SVG元素的innerHTML,outerHTML属性 enumerable: true, configurable: true, get: outerHTML, set: function (html) { var tagName = this.tagName.toLowerCase(), par = this.parentNode, frag = avalon.parseHTML(html) // 操作的svg,直接插入 if (tagName === "svg") { par.insertBefore(frag, this) // svg节点的子节点类似 } else { var newFrag = DOC.createDocumentFragment() enumerateNode(frag, newFrag) par.insertBefore(newFrag, this) } par.removeChild(this) } }, "innerHTML": { enumerable: true, configurable: true, get: function () { var s = this.outerHTML var ropen = new RegExp("<" + this.nodeName + '\\b(?:(["\'])[^"]*?(\\1)|[^>])*>', "i") var rclose = new RegExp("<\/" + this.nodeName + ">$", "i") return s.replace(ropen, "").replace(rclose, "") }, set: function (html) { if (avalon.clearHTML) { avalon.clearHTML(this) var frag = avalon.parseHTML(html) enumerateNode(frag, this) } } } }) } } if (!root.outerHTML && window.HTMLElement) { //firefox 到11时才有outerHTML HTMLElement.prototype.__defineGetter__("outerHTML", outerHTML); } //============================= event binding ======================= var rmouseEvent = /^(?:mouse|contextmenu|drag)|click/ 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 (rmouseEvent.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.wheelDeltaY = ret.wheelDelta ret.wheelDeltaX = 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, fn: 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 DOC.createElement("input"))) { eventHooks.input = { type: "propertychange", fn: function (elem, fn) { return function (e) { if (e.propertyName === "value") { e.type = "input" return fn.call(elem, e) } } } } } if (DOC.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 */ var fixWheelType = DOC.onwheel !== void 0 ? "wheel" : "DOMMouseScroll" var fixWheelDelta = fixWheelType === "wheel" ? "deltaY" : "detail" eventHooks.mousewheel = { type: fixWheelType, fn: function (elem, fn) { return function (e) { e.wheelDeltaY = e.wheelDelta = e[fixWheelDelta] > 0 ? -120 : 120 e.wheelDeltaX = 0 if (Object.defineProperty) { Object.defineProperty(e, "type", { value: "mousewheel" }) } fn.call(elem, e) } } } } /********************************************************************* * 配置系统 * **********************************************************************/ 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 = { interpolate: function (array) { openTag = array[0] closeTag = array[1] if (openTag === closeTag) { throw new SyntaxError("openTag===closeTag") } else { var test = openTag + "test" + closeTag cinerator.innerHTML = test if (cinerator.innerHTML !== test && cinerator.innerHTML.indexOf("<") > -1) { throw new SyntaxError("此定界符不合法") } kernel.openTag = openTag kernel.closeTag = closeTag cinerator.innerHTML = "" } var o = escapeRegExp(openTag), c = escapeRegExp(closeTag) rexpr = new RegExp(o + "([\\s\\S]*)" + c) rexprg = new RegExp(o + "([\\s\\S]*)" + c, "g") rbind = new RegExp(o + "[\\s\\S]*" + c + "|\\sms-") } } kernel.debug = true kernel.plugins = plugins kernel.plugins['interpolate'](["{{", "}}"]) kernel.paths = {} kernel.shim = {} kernel.maxRepeatSize = 100 avalon.config = kernel var ravalon = /(\w+)\[(avalonctrl)="(\S+)"\]/ var findNodes = DOC.querySelectorAll ? function(str) { return DOC.querySelectorAll(str) } : function(str) { var match = str.match(ravalon) var all = DOC.getElementsByTagName(match[1]) var nodes = [] for (var i = 0, el; el = all[i++]; ) { if (el.getAttribute(match[2]) === match[3]) { nodes.push(el) } } return nodes } /********************************************************************* * 事件总线 * **********************************************************************/ var EventBus = { $watch: function (type, callback) { if (typeof callback === "function") { var callbacks = this.$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 }, $fire: function (type) { var special, i, v, callback if (/^(\w+)!(\S+)$/.test(type)) { special = RegExp.$1 type = RegExp.$2 } var events = this.$events if (!events) return var args = aslice.call(arguments, 1) var detail = [type].concat(args) if (special === "all") { for (i in avalon.vmodels) { v = avalon.vmodels[i] if (v !== this) { v.$fire.apply(v, detail) } } } else if (special === "up" || special === "down") { var elements = events.expr ? findNodes(events.expr) : [] if (elements.length === 0) return for (i in avalon.vmodels) { v = avalon.vmodels[i] if (v !== this) { if (v.$events.expr) { var eventNodes = findNodes(v.$events.expr) if (eventNodes.length === 0) { continue } //循环两个vmodel中的节点,查找匹配(向上匹配或者向下匹配)的节点并设置标识 /* jshint ignore:start */ ap.forEach.call(eventNodes, function (node) { ap.forEach.call(elements, function (element) { var ok = special === "down" ? element.contains(node) : //向下捕获 node.contains(element) //向上冒泡 if (ok) { node._avalon = v //符合条件的加一个标识 } }); }) /* jshint ignore:end */ } } } var nodes = DOC.getElementsByTagName("*") //实现节点排序 var alls = [] ap.forEach.call(nodes, function (el) { if (el._avalon) { alls.push(el._avalon) el._avalon = "" el.removeAttribute("_avalon") } }) if (special === "up") { alls.reverse() } for (i = 0; callback = alls[i++]; ) { if (callback.$fire.apply(callback, detail) === false) { break } } } else { var callbacks = events[type] || [] var all = events.$all || [] for (i = 0; callback = callbacks[i++]; ) { if (isFunction(callback)) callback.apply(this, args) } for (i = 0; callback = all[i++]; ) { if (isFunction(callback)) callback.apply(this, arguments) } } } } /********************************************************************* * modelFactory * **********************************************************************/ //avalon最核心的方法的两个方法之一(另一个是avalon.scan),返回一个ViewModel(VM) var VMODELS = avalon.vmodels = {} //所有vmodel都储存在这里 avalon.define = function (id, factory) { var $id = id.$id || id if (!$id) { log("warning: vm必须指定$id") } if (VMODELS[$id]) { log("warning: " + $id + " 已经存在于avalon.vmodels中") } if (typeof id === "object") { var model = modelFactory(id) } else { var scope = { $watch: noop } factory(scope) //得到所有定义 model = modelFactory(scope) //偷天换日,将scope换为model stopRepeatAssign = true factory(model) stopRepeatAssign = false } model.$id = $id return VMODELS[$id] = model } //一些不需要被监听的属性 var $$skipArray = String("$id,$watch,$unwatch,$fire,$events,$model,$skipArray,$reinitialize").match(rword) var defineProperty = Object.defineProperty var canHideOwn = true //如果浏览器不支持ecma262v5的Object.defineProperties或者存在BUG,比如IE8 //标准浏览器使用__defineGetter__, __defineSetter__实现 try { defineProperty({}, "_", { value: "x" }) var defineProperties = Object.defineProperties } catch (e) { canHideOwn = false } function modelFactory(source, $special, $model) { if (Array.isArray(source)) { var arr = source.concat() source.length = 0 var collection = arrayFactory(source) collection.pushArray(arr) return collection } //0 null undefined || Node || VModel(fix IE6-8 createWithProxy $val: val引发的BUG) if (!source || (source.$id && source.$events) || (source.nodeType > 0 && source.nodeName) ) { return source } var $skipArray = Array.isArray(source.$skipArray) ? source.$skipArray : [] $skipArray.$special = $special || {} //强制要监听的属性 var $vmodel = {} //要返回的对象, 它在IE6-8下可能被偷龙转凤 $model = $model || {} //vmodels.$model属性 var $events = {} //vmodel.$events属性 var accessors = {} //监控属性 var computed = [] $$skipArray.forEach(function (name) { delete source[name] }) var names = Object.keys(source) /* jshint ignore:start */ names.forEach(function (name, accessor) { var val = source[name] $model[name] = val if (isObservable(name, val, $skipArray)) { //总共产生三种accessor $events[name] = [] var valueType = avalon.type(val) //总共产生三种accessor if (valueType === "object" && isFunction(val.get) && Object.keys(val).length <= 2) { accessor = makeComputedAccessor(name, val) computed.push(accessor) } else if (rcomplexType.test(valueType)) { // issue #940 解决$model层次依赖丢失 https://github.com/RubyLouvre/avalon/issues/940 // $model[name] = {} accessor = makeComplexAccessor(name, val, valueType, $events[name], $model) } else { accessor = makeSimpleAccessor(name, val) } accessors[name] = accessor } }) /* jshint ignore:end */ $vmodel = defineProperties($vmodel, descriptorFactory(accessors), source) //生成一个空的ViewModel for (var i = 0; i < names.length; i++) { var name = names[i] if (!accessors[name]) { $vmodel[name] = source[name] } } //添加$id, $model, $events, $watch, $unwatch, $fire hideProperty($vmodel, "$id", generateID()) hideProperty($vmodel, "$model", $model) hideProperty($vmodel, "$events", $events) /* jshint ignore:start */ if (canHideOwn) { hideProperty($vmodel, "hasOwnProperty", function (name) { return name in $vmodel.$model }) } else { $vmodel.hasOwnProperty = function (name) { return (name in $vmodel.$model) && (name !== "hasOwnProperty") } } /* jshint ignore:end */ for ( i in EventBus) { hideProperty($vmodel, i, EventBus[i].bind($vmodel)) } $vmodel.$reinitialize = function () { computed.forEach(function (accessor) { delete accessor._value delete accessor.oldArgs accessor.digest = function () { accessor.call($vmodel) } dependencyDetection.begin({ callback: function (vm, dependency) {//dependency为一个accessor var name = dependency._name if (dependency !== accessor) { var list = vm.$events[name] injectDependency(list, accessor.digest) } } }) try { accessor.get.call($vmodel) } finally { dependencyDetection.end() } }) } $vmodel.$reinitialize() return $vmodel } function hideProperty(host, name, value) { if (canHideOwn) { Object.defineProperty(host, name, { value: value, writable: true, enumerable: false, configurable: true }) } else { host[name] = value } } //创建一个简单访问器 function makeSimpleAccessor(name, value) { function accessor(value) { var oldValue = accessor._value if (arguments.length > 0) { if (!stopRepeatAssign && !isEqual(value, oldValue)) { accessor.updateValue(this, value) accessor.notify(this, value, oldValue) } return this } else { dependencyDetection.collectDependency(this, accessor) return oldValue } } accessorFactory(accessor, name) accessor._value = value return accessor; } //创建一个计算访问器 function makeComputedAccessor(name, options) { function accessor(value) {//计算属性 var oldValue = accessor._value var init = ("_value" in accessor) if (arguments.length > 0) { if (stopRepeatAssign) { return this } if (typeof accessor.set === "function") { if (accessor.oldArgs !== value) { accessor.oldArgs = value var $events = this.$events var lock = $events[name] $events[name] = [] //清空回调,防止内部冒泡而触发多次$fire accessor.set.call(this, value) $events[name] = lock value = accessor.get.call(this) if (value !== oldValue) { accessor.updateValue(this, value) accessor.notify(this, value, oldValue) //触发$watch回调 } } } return this } else { //将依赖于自己的高层访问器或视图刷新函数(以绑定对象形式)放到自己的订阅数组中 //将自己注入到低层访问器的订阅数组中 value = accessor.get.call(this) accessor.updateValue(this, value) if (init && oldValue !== value) { accessor.notify(this, value, oldValue) //触发$watch回调 } return value } } accessor.set = options.set accessor.get = options.get accessorFactory(accessor, name) return accessor } //创建一个复杂访问器 function makeComplexAccessor(name, initValue, valueType, list, parentModel) { function accessor(value) { var oldValue = accessor._value var son = accessor._vmodel if (arguments.length > 0) { if (stopRepeatAssign) { return this } if (valueType === "array") { var a = son, b = value, an = a.length, bn = b.length a.$lock = true if (an > bn) { a.splice(bn, an - bn) } else if (bn > an) { a.push.apply(a, b.slice(an)) } var n = Math.min(an, bn) for (var i = 0; i < n; i++) { a.set(i, b[i]) } delete a.$lock a._fire("set") } else if (valueType === "object") { value = value.$model ? value.$model : value var observes = this.$events[name] || [] var newObject = avalon.mix(true, {}, value) for(i in son ){ if(son.hasOwnProperty(i) && ohasOwn.call(newObject,i)){ son[i] = newObject[i] } } son = accessor._vmodel = modelFactory(value) son.$events[subscribers] = observes if (observes.length) { observes.forEach(function (data) { if (!data.type) { return //数据未准备好时忽略更新 } if (data.rollback) { data.rollback() //还原 ms-with ms-on } bindingHandlers[data.type](data, data.vmodels) }) } } accessor.updateValue(this, son.$model) accessor.notify(this, this._value, oldValue) return this } else { dependencyDetection.collectDependency(this, accessor) return son } } accessorFactory(accessor, name) if (Array.isArray(initValue)) { parentModel[name] = initValue } else { parentModel[name] = parentModel[name] || {} } var son = accessor._vmodel = modelFactory(initValue, 0, parentModel[name]) son.$events[subscribers] = list return accessor } function globalUpdateValue(vmodel, value) { vmodel.$model[this._name] = this._value = value } function globalNotify(vmodel, value, oldValue) { var name = this._name var array = vmodel.$events[name] //刷新值 if (array) { fireDependencies(array) //同步视图 EventBus.$fire.call(vmodel, name, value, oldValue) //触发$watch回调 } } function accessorFactory(accessor, name) { accessor._name = name //同时更新_value与model accessor.updateValue = globalUpdateValue accessor.notify = globalNotify } //比较两个值是否相等 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 isObservable(name, value, $skipArray) { if (isFunction(value) || value && value.nodeName && (value.nodeType > 0) ) { return false } if ($skipArray.indexOf(name) !== -1) { return false } var $special = $skipArray.$special if (name && name.charAt(0) === "$" && !$special[name]) { return false } return true } function keysVM(obj) { var arr = Object.keys(obj.$model ? obj.$model: obj) for (var i = 0; i < $$skipArray.length; i++) { var index = arr.indexOf($$skipArray[i]) if (index !== -1) { arr.splice(index, 1) } } return arr } 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 } //===================修复浏览器对Object.defineProperties的支持================= if (!canHideOwn) { 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 } } if (IEVersion) { var VBClassPool = {} window.execScript([// jshint ignore:line "Function parseVB(code)", "\tExecuteGlobal(code)", "End Function" //转换一段文本为VB代码 ].join("\n"), "VBScript") function VBMediator(instance, accessors, name, value) {// jshint ignore:line var accessor = accessors[name] if (arguments.length === 4) { accessor.call(instance, value) } else { return accessor.call(instance) } } defineProperties = function (name, accessors, properties) { // jshint ignore:line var buffer = [] buffer.push( "\r\n\tPrivate [__data__], [__proxy__]", "\tPublic Default Function [__const__](d"+expose+", p"+expose+")", "\t\tSet [__data__] = d"+expose+": set [__proxy__] = p"+expose, "\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 properties) { if (!accessors.hasOwnProperty(name)) { buffer.push("\tPublic [" + name + "]") } } $$skipArray.forEach(function (name) { if (!accessors.hasOwnProperty(name)) { buffer.push("\tPublic [" + name + "]") } }) buffer.push("\tPublic [" + 'hasOwnProperty' + "]") //添加访问器属性 for (name in accessors) { 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__](Me,[__data__], \"" + name + "\", val" + expose + ")", "\tEnd Property", "\tPublic Property Set [" + name + "](val" + expose + ")", //setter "\t\tCall [__proxy__](Me,[__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__](Me,[__data__],\"" + name + "\")", "\tIf Err.Number <> 0 Then", "\t\t[" + name + "] = [__proxy__](Me,[__data__],\"" + name + "\")", "\tEnd If", "\tOn Error Goto 0", "\tEnd Property") } buffer.push("End Class") var body = buffer.join("\r\n") var className =VBClassPool[body] if (!className) { className = generateID("VBClass") window.parseVB("Class " + className + body) 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")) VBClassPool[body] = className } var ret = window[className + "Factory"](accessors, VBMediator) //得到其产品 return ret //得到其产品 } } } /********************************************************************* * 监控数组(与ms-each, ms-repeat配合使用) * **********************************************************************/ function arrayFactory(model) { var array = [] array.$id = generateID() array.$model = model //数据模型 array.$events = {} array.$events[subscribers] = [] array._ = modelFactory({ length: model.length }) array._.$watch("length", function (a, b) { array.$fire("length", a, b) }) for (var i in EventBus) { array[i] = EventBus[i] } avalon.mix(array, arrayPrototype) return array } function mutateArray(method, pos, n, index, method2, pos2, n2) { var oldLen = this.length, loop = 2 while (--loop) { switch (method) { case "add": /* jshint ignore:start */ var array = this.$model.slice(pos, pos + n).map(function (el) { if (rcomplexType.test(avalon.type(el))) { return el.$id ? el : modelFactory(el, 0, el) } else { return el } }) /* jshint ignore:end */ _splice.apply(this, [pos, 0].concat(array)) this._fire("add", pos, n) break case "del": var ret = this._splice(pos, n) this._fire("del", pos, n) break } if (method2) { method = method2 pos = pos2 n = n2 loop = 2 method2 = 0 } } this._fire("index", index) if (this.length !== oldLen) { this._.length = this.length } return ret } var _splice = ap.splice var arrayPrototype = { _splice: _splice, _fire: function (method, a, b) { fireDependencies(this.$events[subscribers], method, a, b) }, size: function () { //取得数组长度,这个函数可以同步视图,length不能 return this._.length }, pushArray: function (array) { var m = array.length, n = this.length if (m) { ap.push.apply(this.$model, array) mutateArray.call(this, "add", n, m, Math.max(0, n - 1)) } return m + n }, push: function () { //http://jsperf.com/closure-with-arguments var array = [] var i, n = arguments.length for (i = 0; i < n; i++) { array[i] = arguments[i] } return this.pushArray(array) }, unshift: function () { var m = arguments.length, n = this.length if (m) { ap.unshift.apply(this.$model, arguments) mutateArray.call(this, "add", 0, m, 0) } return m + n //IE67的unshift不会返回长度 }, shift: function () { if (this.length) { var el = this.$model.shift() mutateArray.call(this, "del", 0, 1, 0) return el //返回被移除的元素 } }, pop: function () { var n = this.length if (n) { var el = this.$model.pop() mutateArray.call(this, "del", n - 1, 1, Math.max(0, n - 2)) return el //返回被移除的元素 } }, splice: function (start) { var m = arguments.length, args = [], change var removed = _splice.apply(this.$model, arguments) if (removed.length) { //如果用户删掉了元素 args.push("del", start, removed.length, 0) change = true } if (m > 2) { //如果用户添加了元素 if (change) { args.splice(3, 1, 0, "add", start, m - 2) } else { args.push("add", start, m - 2, 0) } change = true } if (change) { //返回被移除的元素 return mutateArray.apply(this, args) } else { return [] } }, contains: function (el) { //判定是否包含 return this.indexOf(el) !== -1 }, 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 if (index >= 0) { this.$model.splice(index, 1) return mutateArray.call(this, "del", index, 1, 0) } return [] }, clear: function () { this.$model.length = this.length = this._.length = 0 //清空数组 this._fire("clear", 0) return this }, removeAll: function (all) { //移除N个元素 if (Array.isArray(all)) { for (var i = this.length - 1; i >= 0; i--) { if (all.indexOf(this[i]) !== -1) { this.removeAt(i) } } } else if (typeof all === "function") { for ( i = this.length - 1; i >= 0; i--) { var el = this[i] if (all(el, i)) { this.removeAt(i) } } } 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 < this.length && index > -1) { var valueType = avalon.type(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 this._fire("set", index, val) } } return this } } //相当于原来bindingExecutors.repeat 的index分支 function resetIndex(array, pos) { var last = array.length - 1 for (var el; el = array[pos]; pos++) { el.$index = pos el.$first = pos === 0 el.$last = pos === last } } function sortByIndex(array, indexes) { var map = {}; for (var i = 0, n = indexes.length; i < n; i++) { map[i] = array[i] // preserve var j = indexes[i] if (j in map) { array[i] = map[j] delete map[j] } else { array[i] = array[j] } } } "sort,reverse".replace(rword, function (method) { arrayPrototype[method] = function () { var newArray = this.$model//这是要排序的新数组 var oldArray = newArray.concat() //保持原来状态的旧数组 var mask = Math.random() var indexes = [] var hasSort ap[method].apply(newArray, arguments) //排序 for (var i = 0, n = oldArray.length; i < n; i++) { var neo = newArray[i] var old = oldArray[i] if (isEqual(neo, old)) { indexes.push(i) } else { var index = oldArray.indexOf(neo) indexes.push(index)//得到新数组的每个元素在旧数组对应的位置 oldArray[index] = mask //屏蔽已经找过的元素 hasSort = true } } if (hasSort) { sortByIndex(this, indexes) // sortByIndex(this.$proxy, indexes) this._fire("move", indexes) this._fire("index", 0) } return this } }) /********************************************************************* * 依赖调度系统 * **********************************************************************/ //检测两个对象间的依赖关系 var dependencyDetection = (function () { var outerFrames = [] var currentFrame return { begin: function (accessorObject) { //accessorObject为一个拥有callback的对象 outerFrames.push(currentFrame) currentFrame = accessorObject }, end: function () { currentFrame = outerFrames.pop() }, collectDependency: function (vmodel, accessor) { if (currentFrame) { //被dependencyDetection.begin调用 currentFrame.callback(vmodel, accessor); } } }; })() //将绑定对象注入到其依赖项的订阅数组中 var ronduplex = /^(duplex|on)$/ avalon.injectBinding = function (data) { var valueFn = data.evaluator if (valueFn) { //如果是求值函数 dependencyDetection.begin({ callback: function (vmodel, dependency) { injectDependency(vmodel.$events[dependency._name], data) } }) try { var value = ronduplex.test(data.type) ? data : valueFn.apply(0, data.args) if(value === void 0){ delete data.evaluator } if (data.handler) { data.handler(value, data.element, data) } } catch (e) { log("warning:exception throwed in [avalon.injectBinding] " , e) delete data.evaluator var node = data.element if (node && node.nodeType === 3) { var parent = node.parentNode if (kernel.commentInterpolate) { parent.replaceChild(DOC.createComment(data.value), node) } else { node.data = openTag + (data.oneTime ? "::" : "") + data.value + closeTag } } } finally { dependencyDetection.end() } } } //将依赖项(比它高层的访问器或构建视图刷新函数的绑定对象)注入到订阅者数组 function injectDependency(list, data) { if (data.oneTime) return if (list && avalon.Array.ensure(list, data) && data.element) { injectDisposeQueue(data, list) if (new Date() - beginTime > 444 ) { rejectDisposeQueue() } } } //通知依赖于这个访问器的订阅者更新自身 function fireDependencies(list) { if (list && list.length) { if (new Date() - beginTime > 444 && typeof list[0] === "object") { rejectDisposeQueue() } var args = aslice.call(arguments, 1) for (var i = list.length, fn; fn = list[--i]; ) { var el = fn.element if (el && el.parentNode) { try { var valueFn = fn.evaluator if (fn.$repeat) { fn.handler.apply(fn, args) //处理监控数组的方法 }else if("$repeat" in fn || !valueFn ){//如果没有eval,先eval bindingHandlers[fn.type](fn, fn.vmodels) } else if (fn.type !== "on") { //事件绑定只能由用户触发,不能由程序触发 var value = valueFn.apply(0, fn.args || []) fn.handler(value, el, fn) } } catch (e) { avalon.log(e) } } } } } /********************************************************************* * 定时GC回收机制 * **********************************************************************/ var disposeCount = 0 var disposeQueue = avalon.$$subscribers = [] var beginTime = new Date() var oldInfo = {} function getUid(elem, makeID) { //IE9+,标准浏览器 if (!elem.uuid && !makeID) { elem.uuid = ++disposeCount } return elem.uuid } //添加到回收列队中 function injectDisposeQueue(data, list) { var elem = data.element if (!data.uuid) { if (elem.nodeType !== 1) { data.uuid = data.type + getUid(elem.parentNode) + "-" + (++disposeCount) } else { data.uuid = data.name + "-" + getUid(elem) } } if (!disposeQueue[data.uuid]) { data.list = list data.i = ~~data.i disposeQueue[data.uuid] = "__" disposeQueue.push(data) } } var lastGCIndex = 0 function rejectDisposeQueue(data) { var i = lastGCIndex || disposeQueue.length var threshold = 0 while (data = disposeQueue[--i]) { if (data.i < 7) { if (data.element === null) { disposeQueue.splice(i, 1) if (data.list) { avalon.Array.remove(data.list, data) delete disposeQueue[data.uuid] } continue } if (data.element && shouldDispose(data.element)) { //如果它的虚拟DOM不在VTree上或其属性不在VM上 disposeQueue.splice(i, 1) avalon.Array.remove(data.list, data) disposeData(data) //avalon会在每次全量更新时,比较上次执行时间, //假若距离上次有半秒,就会发起一次GC,并且只检测当中的500个绑定 //而一个正常的页面不会超过2000个绑定(500即取其4分之一) //用户频繁操作页面,那么2,3秒内就把所有绑定检测一遍,将无效的绑定移除 if (threshold++ > 500) { lastGCIndex = i break } continue } data.i++ //基于检测频率,如果检测过7次,可以认为其是长久存在的节点,那么以后每7次才检测一次 if (data.i === 7) { data.i = 14 } } else { data.i-- } } beginTime = new Date() } function disposeData(data) { delete disposeQueue[data.uuid] // 先清除,不然无法回收了 data.element = null data.rollback && data.rollback() for (var key in data) { data[key] = null } } function shouldDispose(el) { try {//IE下,如果文本节点脱离DOM树,访问parentNode会报错 var fireError = el.parentNode.nodeType } catch (e) { return true } if (el.ifRemove) { // 如果节点被放到ifGroup,才移除 if (!root.contains(el.ifRemove) && (ifGroup === el.parentNode)) { el.parentNode && el.parentNode.removeChild(el) return true } } return el.msRetain ? 0 : (el.nodeType === 1 ? !root.contains(el) : !avalon.contains(root, el)) } /************************************************************************ * HTML处理(parseHTML, innerHTML, clearHTML) * ************************************************************************/ // We have to close these tags to support XHTML var tagHooks = { area: [1, "", ""], param: [1, "", ""], col: [2, "", "
"], legend: [1, "
", "
"], option: [1, ""], thead: [1, "", "
"], tr: [2, "", "
"], td: [3, "", "
"], g: [1, '', ''], //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可以不用闭合 } tagHooks.th = tagHooks.td tagHooks.optgroup = tagHooks.option tagHooks.tbody = tagHooks.tfoot = tagHooks.colgroup = tagHooks.caption = tagHooks.thead String("circle,defs,ellipse,image,line,path,polygon,polyline,rect,symbol,text,use").replace(rword, function (tag) { tagHooks[tag] = tagHooks.g //处理SVG }) var rtagName = /<([\w:]+)/ //取得其tagName var rxhtml = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/ig var rcreate = W3C ? /[^\d\D]/ : /(<(?:script|link|style|meta|noscript))/ig var scriptTypes = oneObject(["", "text/javascript", "text/ecmascript", "application/ecmascript", "application/javascript"]) var rnest = /<(?:tb|td|tf|th|tr|col|opt|leg|cap|area)/ //需要处理套嵌关系的标签 var script = DOC.createElement("script") var rhtml = /<|&#?\w+;/ avalon.parseHTML = function (html) { var fragment = avalonFragment.cloneNode(false) if (typeof html !== "string") { return fragment } if (!rhtml.test(html)) { fragment.appendChild(DOC.createTextNode(html)) return fragment } html = html.replace(rxhtml, "<$1>").trim() var tag = (rtagName.exec(html) || ["", ""])[1].toLowerCase(), //取得其标签名 wrap = tagHooks[tag] || tagHooks._default, wrapper = cinerator, firstChild, neo if (!W3C) { //fix IE html = html.replace(rcreate, "
$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 (scriptTypes[el.type]) { //以偷龙转凤方式恢复执行脚本功能 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.setAttribute(attr.name, attr.value) } }) // jshint ignore:line neo.text = el.text el.parentNode.replaceChild(neo, el) //替换节点 } } } if (!W3C) { //fix IE var target = wrap[1] === "X
" ? wrapper.lastChild.firstChild : wrapper.lastChild if (target && target.tagName === "TABLE" && tag !== "tbody") { //IE6-7处理 --> , // --> , // -->
for (els = target.childNodes, i = 0; el = els[i++]; ) { if (el.tagName === "TBODY" && !el.innerHTML) { target.removeChild(el) break } } } els = wrapper.getElementsByTagName("br") var n = els.length while (el = els[--n]) { if (el.className === "msNoScope") { el.parentNode.removeChild(el) } } for (els = wrapper.all, i = 0; el = els[i++]; ) { //fix VML if (isVML(el)) { fixVML(el) } } } //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) { } while (firstChild = wrapper.firstChild) { // 将wrapper上的节点转移到文档碎片上! fragment.appendChild(firstChild) } return fragment } function isVML(src) { var nodeName = src.nodeName return nodeName.toLowerCase() === nodeName && src.scopeName && src.outerText === "" } function fixVML(node) { if (node.currentStyle.behavior !== "url(#default#VML)") { node.style.behavior = "url(#default#VML)" node.style.display = "inline-block" node.style.zoom = 1 //hasLayout } } 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) { node.textContent = "" while (node.firstChild) { node.removeChild(node.firstChild) } return node } /********************************************************************* * avalon的原型方法定义区 * **********************************************************************/ 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) { //提前判断,提高getStyle等的效率 if (!target || target.indexOf("-") < 0 && target.indexOf("_") < 0) { return target } //转换为驼峰风格 return target.replace(/[-_][^-_]/g, function (match) { return match.charAt(1).toUpperCase() }) } var fakeClassListMethods = { _toString: function () { var node = this.node var cls = node.className var str = typeof cls === "string" ? cls : cls.baseVal return str.split(/\s+/).join(" ") }, _contains: function (cls) { return (" " + this + " ").indexOf(" " + cls + " ") > -1 }, _add: function (cls) { if (!this.contains(cls)) { this._set(this + " " + cls) } }, _remove: function (cls) { this._set((" " + this + " ").replace(" " + cls + " ", " ")) }, __set: function (cls) { cls = cls.trim() var node = this.node if (rsvg.test(node)) { //SVG元素的className是一个对象 SVGAnimatedString { baseVal="", animVal=""},只能通过set/getAttribute操作 node.setAttribute("class", cls) } else { node.className = cls } } //toggle存在版本差异,因此不使用它 } function fakeClassList(node) { if (!("classList" in node)) { node.classList = { node: node } for (var k in fakeClassListMethods) { node.classList[k.slice(1)] = fakeClassListMethods[k] } } return node.classList } "add,remove".replace(rword, function (method) { avalon.fn[method + "Class"] = function (cls) { var el = this[0] //https://developer.mozilla.org/zh-CN/docs/Mozilla/Firefox/Releases/26 if (cls && typeof cls === "string" && el && el.nodeType === 1) { cls.replace(/\S+/g, function (c) { fakeClassList(el)[method](c) }) } return this } }) avalon.fn.mix({ hasClass: function (cls) { var el = this[0] || {} return el.nodeType === 1 && fakeClassList(el).contains(cls) }, toggleClass: function (value, stateVal) { var className, i = 0 var classNames = String(value).split(/\s+/) var isBool = typeof stateVal === "boolean" while ((className = classNames[i++])) { var state = isBool ? stateVal : !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) // Subtract offsetParent scroll positions parentOffset.top -= offsetParent.scrollTop() parentOffset.left -= offsetParent.scrollLeft() } 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 while (offsetParent && 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 { if (typeof data === "object") return data data = data === "true" ? true : data === "false" ? false : data === "null" ? null : +data + "" === data ? +data : rbrace.test(data) ? avalon.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 avalon.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))() // jshint ignore:line } } avalon.error("Invalid JSON: " + data) } return data } avalon.fireDom = function (elem, type, opts) { if (DOC.createEvent) { var hackEvent = DOC.createEvent("Events"); hackEvent.initEvent(type, true, true) avalon.mix(hackEvent, opts) elem.dispatchEvent(hackEvent) } else { try { hackEvent = DOC.createEventObject() avalon.mix(hackEvent, opts) elem.fireEvent("on" + type, hackEvent) } catch (e) {//IE6-8触发事件必须保证在DOM树中,否则报"SCRIPT16389: 未指明的错误" } } } //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": W3C ? "cssFloat" : "styleFloat" } avalon.cssNumber = oneObject("animationIterationCount,columnCount,order,flex,flexGrow,flexShrink,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 ralpha = /alpha\([^)]*\)/i 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) { var style = node.style var opacity = isFinite(value) && value <= 1 ? "alpha(opacity=" + value * 100 + ")" : "" var filter = style.filter || ""; style.zoom = 1 //不能使用以下方式设置透明度 //node.filters.alpha.opacity = value * 100 style.filter = (ralpha.test(filter) ? filter.replace(ralpha, opacity) : filter + " " + opacity).trim() if (!style.filter) { style.removeAttribute("filter") } } 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.enabled ? 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) { //fix 481 var method = name.toLowerCase(), clientProp = "client" + name, scrollProp = "scroll" + name, offsetProp = "offset" + name cssHooks[method + ":get"] = function (node, which, override) { var boxSizing = -4 if (typeof override === "number") { boxSizing = override } which = name === "Width" ? ["Left", "Right"] : ["Top", "Bottom"] var ret = node[offsetProp] // border-box 0 if (boxSizing === 2) { // margin-box 2 return ret + avalon.css(node, "margin" + which[0], true) + avalon.css(node, "margin" + which[1], true) } if (boxSizing < 0) { // padding-box -2 ret = ret - avalon.css(node, "border" + which[0] + "Width", true) - avalon.css(node, "border" + which[1] + "Width", true) } if (boxSizing === -4) { // content-box -4 ret = ret - avalon.css(node, "padding" + which[0], true) - avalon.css(node, "padding" + which[1], true) } return ret } 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] || node.document.body[clientProp]//IE6下前两个分别为undefine,0 } 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, -2) } avalon.fn["outer" + name] = function (includeMargin) { return cssHooks[method + ":get"](this[0], void 0, includeMargin === true ? 2 : 0) } }) 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 (node.getBoundingClientRect) { 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(elem) { var ret = elem.tagName.toLowerCase() return ret === "input" && /checkbox|radio/.test(elem.type) ? "checked" : ret } var roption = /^]+))?)*\s+value[\s=]/i var valHooks = { "option:get": IEVersion ? 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) //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.trim() } : function (node) { return node.value }, "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)) > -1)) { optionSet = true } } if (!optionSet) { node.selectedIndex = -1 } } } /********************************************************************* * 编译系统 * **********************************************************************/ var meta = { '\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f', '\r': '\\r', '"': '\\"', '\\': '\\\\' } var quote = window.JSON && JSON.stringify || function(str) { return '"' + str.replace(/[\\\"\x00-\x1f]/g, function(a) { var c = meta[a]; return typeof c === 'string' ? c : '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); }) + '"' } var keywords = [ "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", /* 关键字*/ "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", /*保留字*/ "arguments,let,yield,undefined" /* ECMA 5 - use strict*/].join(",") 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 = /^,+|,+$/g var variablePool = new Cache(512) var getVariables = function (code) { var key = "," + code.trim() var ret = variablePool.get(key) if (ret) { return ret } var match = code .replace(rrexpstr, "") .replace(rsplit, ",") .replace(rkeywords, "") .replace(rnumber, "") .replace(rcomma, "") .split(/^$|,+/) return variablePool.put(key, uniqSet(match)) } /*添加赋值语句*/ function addAssign(vars, scope, name, data) { var ret = [], prefix = " = " + name + "." for (var i = vars.length, prop; prop = vars[--i]; ) { if (scope.hasOwnProperty(prop)) { ret.push(prop + prefix + prop) data.vars.push(prop) if (data.type === "duplex") { vars.get = name + "." + prop } vars.splice(i, 1) } } return ret } function uniqSet(array) { var ret = [], unique = {} for (var i = 0; i < array.length; i++) { var el = array[i] var id = el && typeof el.$id === "string" ? el.$id : el if (!unique[id]) { unique[id] = ret.push(el) } } return ret } //缓存求值函数,以便多次利用 var evaluatorPool = new Cache(128) //取得求值函数及其传参 var rduplex = /\w\[.*\]|\w\.\w/ var rproxy = /(\$proxy\$[a-z]+)\d+$/ var rthimRightParentheses = /\)\s*$/ var rthimOtherParentheses = /\)\s*\|/g var rquoteFilterName = /\|\s*([$\w]+)/g var rpatchBracket = /"\s*\["/g var rthimLeftParentheses = /"\s*\(/g function parseFilter(val, filters) { filters = filters .replace(rthimRightParentheses, "")//处理最后的小括号 .replace(rthimOtherParentheses, function () {//处理其他小括号 return "],|" }) .replace(rquoteFilterName, function (a, b) { //处理|及它后面的过滤器的名字 return "[" + quote(b) }) .replace(rpatchBracket, function () { return '"],["' }) .replace(rthimLeftParentheses, function () { return '",' }) + "]" return "return this.filters.$filter(" + val + ", " + filters + ")" } function parseExpr(code, scopes, data) { var dataType = data.type var filters = data.filters || "" var exprId = scopes.map(function (el) { return String(el.$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 = uniqSet(scopes) data.vars = [] 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, data)) } } if (!assigns.length && dataType === "duplex") { return } if (dataType !== "duplex" && (code.indexOf("||") > -1 || code.indexOf("&&") > -1)) { //https://github.com/RubyLouvre/avalon/issues/583 data.vars.forEach(function (v) { var reg = new RegExp("\\b" + v + "(?:\\.\\w+|\\[\\w+\\])+", "ig") code = code.replace(reg, function (_, cap) { var c = _.charAt(v.length) //var r = IEVersion ? code.slice(arguments[1] + _.length) : RegExp.rightContext //https://github.com/RubyLouvre/avalon/issues/966 var r = code.slice(cap + _.length) var method = /^\s*\(/.test(r) if (c === "." || c === "[" || method) {//比如v为aa,我们只匹配aa.bb,aa[cc],不匹配aaa.xxx var name = "var" + String(Math.random()).replace(/^0\./, "") if (method) {//array.size() var array = _.split(".") if (array.length > 2) { var last = array.pop() assigns.push(name + " = " + array.join(".")) return name + "." + last } else { return _ } } assigns.push(name + " = " + _) return name } else { return _ } }) }) } //---------------args---------------- data.args = args //---------------cache---------------- delete data.vars var fn = evaluatorPool.get(exprId) //直接从缓存,免得重复生成 if (fn) { data.evaluator = fn return } prefix = assigns.join(", ") if (prefix) { prefix = "var " + prefix } if (/\S/.test(filters)) { //文本绑定,双工绑定才有过滤器 if (!/text|html/.test(data.type)) { throw Error("ms-" + data.type + "不支持过滤器") } code = "\nvar ret" + expose + " = " + code + ";\r\n" code += parseFilter("ret" + expose, filters) try { fn = Function.apply(noop, names.concat("\n" + prefix + code)) data.evaluator = evaluatorPool.put(exprId, function() { return fn.apply(avalon, arguments)//确保可以在编译代码中使用this获取avalon对象 }) } catch (e) { log("debug: parse error," + e.message) } vars = assigns = names = null //释放内存 return } else if (dataType === "duplex") { //双工绑定 var _body = "\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 = evaluatorPool.put(exprId, fn) } catch (e) { log("debug: parse error," + e.message) } vars = assigns = names = null //释放内存 return } else if (dataType === "on") { //事件绑定 if (code.indexOf("(") === -1) { code += ".call(this, $event)" } else { code = code.replace("(", ".call(this,") } names.push("$event") 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 + "\n" + 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("\n" + prefix + code)) data.evaluator = evaluatorPool.put(exprId, fn) } catch (e) { log("debug: parse error," + e.message) } vars = assigns = names = null //释放内存 } function stringifyExpr(code) { var hasExpr = rexpr.test(code) //比如ms-class="width{{w}}"的情况 if (hasExpr) { var array = scanExpr(code) if (array.length === 1) { return array[0].value } return array.map(function (el) { return el.expr ? "(" + el.value + ")" : quote(el.value) }).join(" + ") } else { return code } } //parseExpr的智能引用代理 function parseExprProxy(code, scopes, data, noRegister) { code = code || "" //code 可能未定义 parseExpr(code, scopes, data) if (data.evaluator && !noRegister) { data.handler = bindingExecutors[data.handlerName || data.type] //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 avalon.injectBinding(data) } } avalon.parseExprProxy = parseExprProxy /********************************************************************* * 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()) function checkScan(elem, callback, innerHTML) { var id = setTimeout(function() { var currHTML = elem.innerHTML clearTimeout(id) if (currHTML === innerHTML) { callback() } else { checkScan(elem, callback, currHTML) } }) } function createSignalTower(elem, vmodel) { var id = elem.getAttribute("avalonctrl") || vmodel.$id elem.setAttribute("avalonctrl", id) vmodel.$events.expr = elem.tagName + '[avalonctrl="' + id + '"]' } 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] } } } } function executeBindings(bindings, vmodels) { for (var i = 0, data; data = bindings[i++]; ) { data.vmodels = vmodels bindingHandlers[data.type](data, vmodels) if (data.evaluator && data.element && data.element.nodeType === 1) { //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 } //https://github.com/RubyLouvre/avalon/issues/636 var mergeTextNodes = IEVersion && window.MutationObserver ? function (elem) { var node = elem.firstChild, text while (node) { var aaa = node.nextSibling if (node.nodeType === 3) { if (text) { text.nodeValue += node.nodeValue elem.removeChild(node) } else { text = node } } else { text = null } node = aaa } } : 0 var roneTime = /^\s*::/ var rmsAttr = /ms-(\w+)-?(.*)/ var priorityMap = { "if": 10, "repeat": 90, "data": 100, "widget": 110, "each": 1400, "with": 1500, "duplex": 2000, "on": 3000 } var events = oneObject("animationend,blur,change,input,click,dblclick,focus,keydown,keypress,keyup,mousedown,mouseenter,mouseleave,mousemove,mouseout,mouseover,mouseup,scan,scroll,submit") var obsoleteAttrs = oneObject("value,title,alt,checked,selected,disabled,readonly,enabled") function bindingSorter(a, b) { return a.priority - b.priority } function scanAttr(elem, vmodels, match) { var scanNode = true if (vmodels.length) { var attributes = getAttributes ? getAttributes(elem) : elem.attributes var bindings = [] var fixAttrs = [] var msData = {} var uniq = {} 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] || "" var value = attr.value var name = attr.name if (uniq[name]) {//IE8下ms-repeat,ms-with BUG continue } uniq[name] = 1 if (events[type]) { param = type type = "on" } else if (obsoleteAttrs[type]) { if (type === "enabled") {//吃掉ms-enabled绑定,用ms-disabled代替 log("warning!ms-enabled或ms-attr-enabled已经被废弃") type = "disabled" value = "!(" + value + ")" } param = type type = "attr" name = "ms-" + type + "-" + param fixAttrs.push([attr.name, name, value]) } msData[name] = value if (typeof bindingHandlers[type] === "function") { var newValue = value.replace(roneTime, "") var oneTime = value !== newValue var binding = { type: type, param: param, element: elem, name: name, value: newValue, oneTime: oneTime, //chrome与firefox下Number(param)得到的值不一样 #855 priority: (priorityMap[type] || type.charCodeAt(0) * 10) + (Number(param.replace(/\D/g, "")) || 0) } if (type === "html" || type === "text") { var token = getToken(value) avalon.mix(binding, token) binding.filters = binding.filters.replace(rhasHtml, function () { binding.type = "html" binding.group = 1 return "" })// jshint ignore:line } else if (type === "duplex") { var hasDuplex = name } else if (name === "ms-if-loop") { binding.priority += 100 } bindings.push(binding) if (type === "widget") { elem.msData = elem.msData || msData } } } } } if (bindings.length) { bindings.sort(bindingSorter) fixAttrs.forEach(function (arr) { log("warning!请改用" + arr[1] + "代替" + arr[0] + "!") elem.removeAttribute(arr[0]) elem.setAttribute(arr[1], arr[2]) }) //http://bugs.jquery.com/ticket/7071 //在IE下对VML读取type属性,会让此元素所有属性都变成 if (hasDuplex && msData["ms-attr-value"] && !elem.scopeName && elem.type === "text") { log("warning!一个控件不能同时定义ms-attr-value与" + hasDuplex) } for (i = 0; binding = bindings[i]; i++) { type = binding.type if (rnoscanAttrBinding.test(type)) { return executeBindings(bindings.slice(0, i + 1), vmodels) } else if (scanNode) { scanNode = !rnoscanNodeBinding.test(type) } } executeBindings(bindings, vmodels) } } if (scanNode && !stopScan[elem.tagName] && rbind.test(elem.innerHTML.replace(rlt, "<").replace(rgt, ">"))) { mergeTextNodes && mergeTextNodes(elem) scanNodeList(elem, vmodels) //扫描子孙元素 } } var rnoscanAttrBinding = /^if|widget|repeat$/ var rnoscanNodeBinding = /^each|with|html|include$/ //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 (!W3C) { var attrPool = new Cache(512) var rattrs = /\s+(ms-[^=\s]+)(?:=("[^"]*"|'[^']*'|[^\s>]+))?/g, rquote = /^['"]/, rtag = /<\w+\b(?:(["'])[^"]*?(\1)|[^>])*>/i, ramp = /&/g //IE6-8解析HTML5新标签,会将它分解两个元素节点与一个文本节点 //
ddd
// window.onload = function() { // var body = document.body // for (var i = 0, el; el = body.children[i++]; ) { // avalon.log(el.outerHTML) // } // } //依次输出
,
var getAttributes = function (elem) { var html = elem.outerHTML //处理IE6-8解析HTML5新标签的情况,及
等半闭合标签outerHTML为空的情况 if (html.slice(0, 2) === ""){ str = str.slice(0,-1) } var attributes = [], match, k, v var ret = attrPool.get(str) if (ret) { return ret } 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() var binding = { name: name, specified: true, value: v || "" } attributes.push(binding) } return attrPool.put(str, attributes) } } function scanNodeList(parent, vmodels) { var nodes = avalon.slice(parent.childNodes) scanNodeArray(nodes, vmodels) } function scanNodeArray(nodes, vmodels) { for (var i = 0, node; node = nodes[i++];) { switch (node.nodeType) { case 1: scanTag(node, vmodels) //扫描元素节点 if (node.msCallback) { node.msCallback() node.msCallback = void 0 } break case 3: if(rexpr.test(node.nodeValue)){ scanText(node, vmodels, i) //扫描文本节点 } break } } } 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("ms-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("ms-important") var c = elem.getAttributeNode("ms-controller") if (typeof a === "string") { return } else if (node = b || c) { var newVmodel = avalon.vmodels[node.value] if (!newVmodel) { return } //ms-important不包含父VM,ms-controller相反 vmodels = node === b ? [newVmodel] : [newVmodel].concat(vmodels) var name = node.name elem.removeAttribute(name) //removeAttributeNode不会刷新[ms-controller]样式规则 avalon(elem).removeClass(name) createSignalTower(elem, newVmodel) } scanAttr(elem, vmodels) //扫描特性节点 } var rhasHtml = /\|\s*html(?:\b|$)/, r11a = /\|\|/g, rlt = /</g, rgt = />/g, rstringLiteral = /(['"])(\\\1|.)+?\1/g, rline = /\r?\n/g function getToken(value) { if (value.indexOf("|") > 0) { var scapegoat = value.replace(rstringLiteral, function (_) { return Array(_.length + 1).join("1")// jshint ignore:line }) var index = scapegoat.replace(r11a, "\u1122\u3344").indexOf("|") //干掉所有短路或 if (index > -1) { return { filters: value.slice(index), value: value.slice(0, index), expr: true } } } return { value: value, filters: "", expr: true } } 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, filters: "", 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 tokens.push(getToken(value.replace(rline,""))) } start = stop + closeTag.length } while (1) value = str.slice(start) if (value) { //}} 右边的文本 tokens.push({ value: value, expr: false, filters: "" }) } return tokens } function scanText(textNode, vmodels) { var bindings = [], 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) { token.value = token.value.replace(roneTime, function () { token.oneTime = true return "" })// jshint ignore:line token.type = "text" token.element = node token.filters = token.filters.replace(rhasHtml, function (a, b,c) { token.type = "html" return "" })// jshint ignore:line bindings.push(token) //收集带有插值表达式的文本 } avalonFragment.appendChild(node) } textNode.parentNode.replaceChild(avalonFragment, textNode) if (bindings.length) executeBindings(bindings, vmodels) } } var bools = ["autofocus,autoplay,async,allowTransparency,checked,controls", "declare,disabled,defer,defaultChecked,defaultSelected", "contentEditable,isMap,loop,multiple,noHref,noResize,noShade", "open,readOnly,selected" ].join(",") var boolMap = {} bools.replace(rword, function (name) { boolMap[name.toLowerCase()] = name }) var propMap = {//属性名映射 "accept-charset": "acceptCharset", "char": "ch", "charoff": "chOff", "class": "className", "for": "htmlFor", "http-equiv": "httpEquiv" } var anomaly = ["accessKey,bgColor,cellPadding,cellSpacing,codeBase,codeType,colSpan", "dateTime,defaultValue,frameBorder,longDesc,maxLength,marginWidth,marginHeight", "rowSpan,tabIndex,useMap,vSpace,valueType,vAlign" ].join(",") anomaly.replace(rword, function (name) { propMap[name.toLowerCase()] = name }) var rnoscripts = /(?:[\s\S]+?)<\/noscript>/img var rnoscriptText = /([\s\S]+?)<\/noscript>/im var getXHR = function () { return new (window.XMLHttpRequest || ActiveXObject)("Microsoft.XMLHTTP") // jshint ignore:line } var templatePool = avalon.templateCache = {} bindingHandlers.attr = function (data, vmodels) { var value = stringifyExpr(data.value.trim()) if (data.type === "include") { var elem = data.element data.includeRendered = getBindingCallback(elem, "data-include-rendered", vmodels) data.includeLoaded = getBindingCallback(elem, "data-include-loaded", vmodels) var outer = data.includeReplace = !!avalon(elem).data("includeReplace") if (avalon(elem).data("includeCache")) { data.templateCache = {} } data.startInclude = DOC.createComment("ms-include") data.endInclude = DOC.createComment("ms-include-end") if (outer) { data.element = data.startInclude elem.parentNode.insertBefore(data.startInclude, elem) elem.parentNode.insertBefore(data.endInclude, elem.nextSibling) } else { elem.insertBefore(data.startInclude, elem.firstChild) elem.appendChild(data.endInclude) } } data.handlerName = "attr" //handleName用于处理多种绑定共用同一种bindingExecutor的情况 parseExprProxy(value, vmodels, data) } 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 (!W3C && propMap[attrName]) { //旧式IE下需要进行名字映射 attrName = propMap[attrName] } var bool = boolMap[attrName] if (typeof elem[bool] === "boolean") { elem[bool] = !!val //布尔属性必须使用el.xxx = true|false方式设值 if (!val) { //如果为false, IE全系列下相当于setAttribute(xxx,''),会影响到样式,需要进一步处理 toRemove = true } } if (toRemove) { return elem.removeAttribute(attrName) } //SVG只能使用setAttribute(xxx, yyy), VML只能使用elem.xxx = yyy ,HTML的固有属性必须elem.xxx = yyy var isInnate = rsvg.test(elem) ? false : (DOC.namespaces && isVML(elem)) ? true : attrName in elem.cloneNode(false) if (isInnate) { elem[attrName] = val + "" } else { elem.setAttribute(attrName, val) } } else if (method === "include" && val) { var vmodels = data.vmodels var rendered = data.includeRendered var loaded = data.includeLoaded var replace = data.includeReplace var target = replace ? elem.parentNode : elem var scanTemplate = function (text) { if (data.vmodels === null) { return } if (loaded) { var newText = loaded.apply(target, [text].concat(vmodels)) if (typeof newText === "string") text = newText } if (rendered) { checkScan(target, function () { rendered.call(target) }, NaN) } var lastID = data.includeLastID if (data.templateCache && lastID && lastID !== val) { var lastTemplate = data.templateCache[lastID] if (!lastTemplate) { lastTemplate = data.templateCache[lastID] = DOC.createElement("div") ifGroup.appendChild(lastTemplate) } } data.includeLastID = val while (data.startInclude) { var node = data.startInclude.nextSibling if (node && node !== data.endInclude) { target.removeChild(node) if (lastTemplate) lastTemplate.appendChild(node) } else { break } } var dom = getTemplateNodes(data, val, text) var nodes = avalon.slice(dom.childNodes) target.insertBefore(dom, data.endInclude) scanNodeArray(nodes, vmodels) } if (data.param === "src") { if (typeof templatePool[val] === "string") { avalon.nextTick(function () { scanTemplate(templatePool[val]) }) } else if (Array.isArray(templatePool[val])) { //#805 防止在循环绑定中发出许多相同的请求 templatePool[val].push(scanTemplate) } else { var xhr = getXHR() xhr.onreadystatechange = function () { if (xhr.readyState === 4) { var s = xhr.status if (s >= 200 && s < 300 || s === 304 || s === 1223) { var text = xhr.responseText for (var f = 0, fn; fn = templatePool[val][f++]; ) { fn(text) } templatePool[val] = text } } } templatePool[val] = [scanTemplate] 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 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.value || 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 if (window.chrome && elem.tagName === "EMBED") { var parent = elem.parentNode //#525 chrome1-37下embed标签动态设置src不能发生请求 var comment = document.createComment("ms-src") parent.replaceChild(comment, elem) parent.replaceChild(elem, comment) } } } function getTemplateNodes(data, id, text) { var div = data.templateCache && data.templateCache[id] if (div) { var dom = DOC.createDocumentFragment(), firstChild while (firstChild = div.firstChild) { dom.appendChild(firstChild) } return dom } return avalon.parseHTML(text) } //这几个指令都可以使用插值表达式,如ms-src="aaa/{{b}}/{{c}}.html" "title,alt,src,value,css,include,href".replace(rword, function (name) { bindingHandlers[name] = bindingHandlers.attr }) //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 bindingHandlers["class"] = function (binding, vmodels) { var oldStyle = binding.param, text = binding.value, rightExpr binding.handlerName = "class" if (!oldStyle || isFinite(oldStyle)) { binding.param = "" //去掉数字 var colonIndex = text.replace(rexprg, function (a) { return a.replace(/./g, "0") }).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 rightExpr = true } else { // 比如 ms-class-1="ui-state-active:checked" 的情况 className = text.slice(0, colonIndex) rightExpr = text.slice(colonIndex + 1) } if (!rexpr.test(text)) { className = quote(className) } else { className = stringifyExpr(className) } binding.expr = "[" + className + "," + rightExpr + "]" } else { binding.expr = '[' + quote(oldStyle) + "," + text + "]" binding.oldStyle = oldStyle } var method = binding.type if (method === "hover" || method === "active") { //确保只绑定一次 if (!binding.hasBindEvent) { var elem = binding.element var $elem = avalon(elem) var activate = "mouseenter" //在移出移入时切换类名 var abandon = "mouseleave" if (method === "active") { //在聚焦失焦中切换类名 elem.tabIndex = elem.tabIndex || -1 activate = "mousedown" abandon = "mouseup" var fn0 = $elem.bind("mouseleave", function () { binding.toggleClass && $elem.removeClass(binding.newClass) }) } } var fn1 = $elem.bind(activate, function () { binding.toggleClass && $elem.addClass(binding.newClass) }) var fn2 = $elem.bind(abandon, function () { binding.toggleClass && $elem.removeClass(binding.newClass) }) binding.rollback = function () { $elem.unbind("mouseleave", fn0) $elem.unbind(activate, fn1) $elem.unbind(abandon, fn2) } binding.hasBindEvent = true } parseExprProxy(binding.expr, vmodels, binding) } bindingExecutors["class"] = function (arr, elem, binding) { var $elem = avalon(elem) binding.newClass = arr[0] binding.toggleClass = !!arr[1] if (binding.oldClass && binding.newClass !== binding.oldClass) { $elem.removeClass(binding.oldClass) } binding.oldClass = binding.newClass if (binding.type === "class") { if (binding.oldStyle) { $elem.toggleClass(binding.oldStyle, !!arr[1]) } else { $elem.toggleClass(binding.newClass, binding.toggleClass) } } } "hover,active".replace(rword, function (method) { bindingHandlers[method] = bindingHandlers["class"] }) //ms-controller绑定已经在scanTag 方法中实现 //ms-css绑定已由ms-attr绑定实现 // bindingHandlers.data 定义在if.js bindingExecutors.data = function(val, elem, data) { var key = "data-" + data.param if (val && typeof val === "object") { elem[key] = val } else { elem.setAttribute(key, String(val)) } } //双工绑定 var duplexBinding = bindingHandlers.duplex = function(data, vmodels) { var elem = data.element, hasCast parseExprProxy(data.value, vmodels, data, 1) data.changed = getBindingCallback(elem, "data-duplex-changed", vmodels) || noop if (data.evaluator && data.args) { var params = [] var casting = oneObject("string,number,boolean,checked") if (elem.type === "radio" && data.param === "") { data.param = "checked" } if (elem.msData) { elem.msData["ms-duplex"] = data.value } data.param.replace(/\w+/g, function(name) { if (/^(checkbox|radio)$/.test(elem.type) && /^(radio|checked)$/.test(name)) { if (name === "radio") log("ms-duplex-radio已经更名为ms-duplex-checked") name = "checked" data.isChecked = true } if (name === "bool") { name = "boolean" log("ms-duplex-bool已经更名为ms-duplex-boolean") } else if (name === "text") { name = "string" log("ms-duplex-text已经更名为ms-duplex-string") } if (casting[name]) { hasCast = true } avalon.Array.ensure(params, name) }) if (!hasCast) { params.push("string") } data.param = params.join("-") data.bound = function(type, callback) { if (elem.addEventListener) { elem.addEventListener(type, callback, false) } else { elem.attachEvent("on" + type, callback) } var old = data.rollback data.rollback = function() { elem.avalonSetter = null avalon.unbind(elem, type, callback) old && old() } } for (var i in avalon.vmodels) { var v = avalon.vmodels[i] v.$fire("avalon-ms-duplex-init", data) } var cpipe = data.pipe || (data.pipe = pipe) cpipe(null, data, "init") var tagName = elem.tagName duplexBinding[tagName] && duplexBinding[tagName](elem, data.evaluator.apply(null, data.args), data) } } //不存在 bindingExecutors.duplex function fixNull(val) { return val == null ? "" : val } avalon.duplexHooks = { checked: { get: function(val, data) { return !data.element.oldValue } }, string: { get: function(val) { //同步到VM return val }, set: fixNull }, "boolean": { get: function(val) { return val === "true" }, set: fixNull }, number: { get: function(val, data) { var number = parseFloat(val) if (-val === -number) { return number } var arr = /strong|medium|weak/.exec(data.element.getAttribute("data-duplex-number")) || ["medium"] switch (arr[0]) { case "strong": return 0 case "medium": return val === "" ? "" : 0 case "weak": return val } }, set: fixNull } } function pipe(val, data, action, e) { data.param.replace(/\w+/g, function(name) { var hook = avalon.duplexHooks[name] if (hook && typeof hook[action] === "function") { val = hook[action](val, data) } }) return val } var TimerID, ribbon = [] avalon.tick = function(fn) { if (ribbon.push(fn) === 1) { TimerID = setInterval(ticker, 60) } } function ticker() { for (var n = ribbon.length - 1; n >= 0; n--) { var el = ribbon[n] if (el() === false) { ribbon.splice(n, 1) } } if (!ribbon.length) { clearInterval(TimerID) } } var watchValueInTimer = noop new function() { // jshint ignore:line try { //#272 IE9-IE11, firefox var setters = {} var aproto = HTMLInputElement.prototype var bproto = HTMLTextAreaElement.prototype function newSetter(value) { // jshint ignore:line setters[this.tagName].call(this, value) if (!this.msFocus && this.avalonSetter) { this.avalonSetter() } } var inputProto = HTMLInputElement.prototype Object.getOwnPropertyNames(inputProto) //故意引发IE6-8等浏览器报错 setters["INPUT"] = Object.getOwnPropertyDescriptor(aproto, "value").set Object.defineProperty(aproto, "value", { set: newSetter }) setters["TEXTAREA"] = Object.getOwnPropertyDescriptor(bproto, "value").set Object.defineProperty(bproto, "value", { set: newSetter }) } catch (e) { //在chrome 43中 ms-duplex终于不需要使用定时器实现双向绑定了 // http://updates.html5rocks.com/2015/04/DOM-attributes-now-on-the-prototype // https://docs.google.com/document/d/1jwA8mtClwxI-QJuHT7872Z0pxpZz8PBkf2bGAbsUtqs/edit?pli=1 watchValueInTimer = avalon.tick } } // jshint ignore:line if (IEVersion) { avalon.bind(DOC, "selectionchange", function (e) { var el = DOC.activeElement || {} if (!el.msFocus && el.avalonSetter) { el.avalonSetter() } }) } var rnoduplex = /^(file|button|reset|submit|checkbox|radio|range)$/ //处理radio, checkbox, text, textarea, password duplexBinding.INPUT = function (elem, evaluator, data) { var $type = elem.type, bound = data.bound, $elem = avalon(elem), composing = false function callback(value) { data.changed.call(this, value, data) } function compositionStart() { composing = true } function compositionEnd() { composing = false setTimeout(updateVModel) } var IE9Value //当value变化时改变model的值 var updateVModel = function() { var val = elem.value //防止递归调用形成死循环 if (composing || val === IE9Value) //处理中文输入法在minlengh下引发的BUG return var lastValue = data.pipe(val, data, "get") if ($elem.data("duplexObserve") !== false) { IE9Value = val evaluator(lastValue) callback.call(elem, lastValue) } } //当model变化时,它就会改变value的值 data.handler = function () { var val = data.pipe(evaluator(), data, "set") //fix #673 #1106 if (val !== IE9Value) { var fixCaret = false if (elem.msFocus) { try { var pos = getCaret(elem) if (pos.start === pos.end) { pos = pos.start fixCaret = true } } catch (e) { } } elem.value = IE9Value = val if (fixCaret && !elem.readyOnly) { setCaret(elem, pos, pos) } } } if (data.isChecked || $type === "radio") { var IE6 = IEVersion === 6 updateVModel = function () { if ($elem.data("duplexObserve") !== false) { var lastValue = data.pipe(elem.value, data, "get") evaluator(lastValue) callback.call(elem, lastValue) } } data.handler = function () { var val = evaluator() var checked = data.isChecked ? !!val : val + "" === elem.value elem.oldValue = checked if (IE6) { setTimeout(function () { //IE8 checkbox, radio是使用defaultChecked控制选中状态, //并且要先设置defaultChecked后设置checked //并且必须设置延迟 elem.defaultChecked = checked elem.checked = checked }, 31) } else { elem.checked = checked } } bound("click", updateVModel) } else if ($type === "checkbox") { updateVModel = function () { if ($elem.data("duplexObserve") !== false) { var method = elem.checked ? "ensure" : "remove" var array = evaluator() if (!Array.isArray(array)) { log("ms-duplex应用于checkbox上要对应一个数组") array = [array] } var val = data.pipe(elem.value, data, "get") avalon.Array[method](array, val) callback.call(elem, array) } } data.handler = function () { var array = [].concat(evaluator()) //强制转换为数组 var val = data.pipe(elem.value, data, "get") elem.checked = array.indexOf(val) > -1 } bound(W3C ? "change" : "click", updateVModel) } else { var events = elem.getAttribute("data-duplex-event") || "input" if (elem.attributes["data-event"]) { log("data-event指令已经废弃,请改用data-duplex-event") } function delay(e) { // jshint ignore:line setTimeout(function () { updateVModel(e) }) } events.replace(rword, function (name) { switch (name) { case "input": if (!IEVersion) { // W3C bound("input", updateVModel) //非IE浏览器才用这个 bound("compositionstart", compositionStart) bound("compositionend", compositionEnd) bound("DOMAutoComplete", updateVModel) } else { // IE下通过selectionchange事件监听IE9+点击input右边的X的清空行为,及粘贴,剪切,删除行为 if (IEVersion > 8) { if(IEVersion === 9){ //IE9删除字符后再失去焦点不会同步 #1167 bound("keyup", updateVModel) } //IE9使用propertychange无法监听中文输入改动 bound("input", updateVModel) } else { //onpropertychange事件无法区分是程序触发还是用户触发 //IE6-8下第一次修改时不会触发,需要使用keydown或selectionchange修正 bound("propertychange", function (e) { if (e.propertyName === "value") { updateVModel() } }) } bound("dragend", delay) //http://www.cnblogs.com/rubylouvre/archive/2013/02/17/2914604.html //http://www.matts411.com/post/internet-explorer-9-oninput/ } break default: bound(name, updateVModel) break } }) if (!rnoduplex.test(elem.type)) { if (elem.type !== "hidden") { bound("focus", function () { elem.msFocus = true }) bound("blur", function () { elem.msFocus = false }) } elem.avalonSetter = updateVModel //#765 watchValueInTimer(function () { if (root.contains(elem)) { if (!elem.msFocus ) { updateVModel() } } else if (!elem.msRetain) { return false } }) } } avalon.injectBinding(data) callback.call(elem, elem.value) } duplexBinding.TEXTAREA = duplexBinding.INPUT function getCaret(ctrl) { var start = NaN, end = NaN //https://github.com/RobinHerbots/jquery.inputmask/blob/3.x/js/inputmask.js#L1736 if (ctrl.setSelectionRange) { start = ctrl.selectionStart end = ctrl.selectionEnd } else { var range = document.selection.createRange() start = 0 - range.duplicate().moveStart('character', -100000) end = start + range.text.length } return { start: start, end: end } } function setCaret(ctrl, begin, end) { if (!ctrl.value || ctrl.readOnly) return if (ctrl.createTextRange) {//IE6-8 var range = ctrl.createTextRange() range.collapse(true) range.moveStart("character", begin) range.select() } else { ctrl.selectionStart = begin ctrl.selectionEnd = end } } duplexBinding.SELECT = function(element, evaluator, data) { var $elem = avalon(element) function updateVModel() { if ($elem.data("duplexObserve") !== false) { var val = $elem.val() //字符串或字符串数组 if (Array.isArray(val)) { val = val.map(function(v) { return data.pipe(v, data, "get") }) } else { val = data.pipe(val, data, "get") } if (val + "" !== element.oldValue) { evaluator(val) } data.changed.call(element, val, data) } } data.handler = function() { var val = evaluator() val = val && val.$model || val if (Array.isArray(val)) { if (!element.multiple) { log("ms-duplex在不能对应一个数组") } } //必须变成字符串后才能比较 val = Array.isArray(val) ? val.map(String) : val + "" if (val + "" !== element.oldValue) { $elem.val(val) element.oldValue = val + "" } } data.bound("change", updateVModel) element.msCallback = function() { avalon.injectBinding(data) data.changed.call(element, evaluator(), data) } } // bindingHandlers.html 定义在if.js bindingExecutors.html = function (val, elem, data) { var isHtmlFilter = elem.nodeType !== 1 var parent = isHtmlFilter ? elem.parentNode : elem if (!parent) return val = val == null ? "" : val if (data.oldText !== val) { data.oldText = val } else { return } if (elem.nodeType === 3) { var signature = generateID("html") parent.insertBefore(DOC.createComment(signature), elem) data.element = DOC.createComment(signature + ":end") parent.replaceChild(data.element, elem) elem = data.element } if (typeof val !== "object") {//string, number, boolean var fragment = avalon.parseHTML(String(val)) } else if (val.nodeType === 11) { //将val转换为文档碎片 fragment = val } else if (val.nodeType === 1 || val.item) { var nodes = val.nodeType === 1 ? val.childNodes : val.item fragment = avalonFragment.cloneNode(true) while (nodes[0]) { fragment.appendChild(nodes[0]) } } nodes = avalon.slice(fragment.childNodes) //插入占位符, 如果是过滤器,需要有节制地移除指定的数量,如果是html指令,直接清空 if (isHtmlFilter) { var endValue = elem.nodeValue.slice(0, -4) while (true) { var node = elem.previousSibling if (!node || node.nodeType === 8 && node.nodeValue === endValue) { break } else { parent.removeChild(node) } } parent.insertBefore(fragment, elem) } else { avalon.clearHTML(elem).appendChild(fragment) } scanNodeArray(nodes, data.vmodels) } bindingHandlers["if"] = bindingHandlers.data = bindingHandlers.text = bindingHandlers.html = function(data, vmodels) { parseExprProxy(data.value, vmodels, data) } bindingExecutors["if"] = function(val, elem, data) { try { if(!elem.parentNode) return } catch(e) {return} if (val) { //插回DOM树 if (elem.nodeType === 8) { elem.parentNode.replaceChild(data.template, elem) elem.ifRemove = null // animate.enter(data.template, elem.parentNode) elem = data.element = data.template //这时可能为null } if (elem.getAttribute(data.name)) { elem.removeAttribute(data.name) scanAttr(elem, data.vmodels) } data.rollback = null } else { //移出DOM树,并用注释节点占据原位置 if (elem.nodeType === 1) { var node = data.element = DOC.createComment("ms-if") elem.parentNode.replaceChild(node, elem) elem.ifRemove = node // animate.leave(elem, node.parentNode, node) data.template = elem //元素节点 ifGroup.appendChild(elem) data.rollback = function() { if (elem.parentNode === ifGroup) { ifGroup.removeChild(elem) } } } } } //ms-important绑定已经在scanTag 方法中实现 //ms-include绑定已由ms-attr绑定实现 var rdash = /\(([^)]*)\)/ bindingHandlers.on = function(data, vmodels) { var value = data.value data.type = "on" var eventType = data.param.replace(/-\d+$/, "") // ms-on-mousemove-10 if (typeof bindingHandlers.on[eventType + "Hook"] === "function") { bindingHandlers.on[eventType + "Hook"](data) } if (value.indexOf("(") > 0 && value.indexOf(")") > -1) { var matched = (value.match(rdash) || ["", ""])[1].trim() if (matched === "" || matched === "$event") { // aaa() aaa($event)当成aaa处理 value = value.replace(rdash, "") } } parseExprProxy(value, vmodels, data) } bindingExecutors.on = function(callback, elem, data) { callback = function(e) { var fn = data.evaluator || noop return fn.apply(this, data.args.concat(e)) } var eventType = data.param.replace(/-\d+$/, "") // ms-on-mousemove-10 if (eventType === "scan") { callback.call(elem, { type: eventType }) } else if (typeof data.specialBind === "function") { data.specialBind(elem, callback) } else { var removeFn = avalon.bind(elem, eventType, callback) } data.rollback = function() { if (typeof data.specialUnbind === "function") { data.specialUnbind() } else { avalon.unbind(elem, eventType, removeFn) } } } bindingHandlers.repeat = function (data, vmodels) { var type = data.type parseExprProxy(data.value, vmodels, data, 1) data.proxies = [] var freturn = false try { var $repeat = data.$repeat = data.evaluator.apply(0, data.args || []) var xtype = avalon.type($repeat) if (xtype !== "object" && xtype !== "array") { freturn = true avalon.log("warning:" + data.value + "只能是对象或数组") } else { data.xtype = xtype } } catch (e) { freturn = true } var arr = data.value.split(".") || [] if (arr.length > 1) { arr.pop() var n = arr[0] for (var i = 0, v; v = vmodels[i++]; ) { if (v && v.hasOwnProperty(n)) { var events = v[n].$events || {} events[subscribers] = events[subscribers] || [] injectDependency(events[subscribers], data) break } } } var oldHandler = data.handler data.handler = noop avalon.injectBinding(data) data.handler = oldHandler var elem = data.element if (elem.nodeType === 1) { elem.removeAttribute(data.name) data.sortedCallback = getBindingCallback(elem, "data-with-sorted", vmodels) data.renderedCallback = getBindingCallback(elem, "data-" + type + "-rendered", vmodels) var signature = generateID(type) var start = DOC.createComment(signature) var end = DOC.createComment(signature + ":end") data.signature = signature data.template = avalonFragment.cloneNode(false) if (type === "repeat") { var parent = elem.parentNode parent.replaceChild(end, elem) parent.insertBefore(start, end) data.template.appendChild(elem) } else { while (elem.firstChild) { data.template.appendChild(elem.firstChild) } elem.appendChild(start) elem.appendChild(end) } data.element = end data.handler = bindingExecutors.repeat data.rollback = function () { var elem = data.element if (!elem) return data.handler("clear") } } if (freturn) { return } data.$outer = {} var check0 = "$key" var check1 = "$val" if (Array.isArray($repeat)) { check0 = "$first" check1 = "$last" } for (i = 0; v = vmodels[i++]; ) { if (v.hasOwnProperty(check0) && v.hasOwnProperty(check1)) { data.$outer = v break } } var $events = $repeat.$events var $list = ($events || {})[subscribers] injectDependency($list, data) if (xtype === "object") { data.handler("append") } else if ($repeat.length) { data.handler("add", 0, $repeat.length) } } bindingExecutors.repeat = function (method, pos, el) { var data = this if (!method && data.xtype) { var old = data.$repeat var neo = data.evaluator.apply(0, data.args || []) if (data.xtype === "array") { if (old.length === neo.length) { if (old !== neo && old.length > 0) { bindingExecutors.repeat.call(this, 'clear', pos, el) } else { return } } method = "add" pos = 0 data.$repeat = neo el = neo.length } else { if (keysVM(old).join(";;") === keysVM(neo).join(";;")) { return } method = "append" data.$repeat = neo } } if (method) { var start, fragment var end = data.element var comments = getComments(data) var parent = end.parentNode var proxies = data.proxies var transation = avalonFragment.cloneNode(false) switch (method) { case "add": //在pos位置后添加el数组(pos为插入位置,el为要插入的个数) var n = pos + el var fragments = [] for (var i = pos; i < n; i++) { var proxy = eachProxyAgent(i, data) proxies.splice(i, 0, proxy) shimController(data, transation, proxy, fragments) } parent.insertBefore(transation, comments[pos] || end) for (i = 0; fragment = fragments[i++]; ) { scanNodeArray(fragment.nodes, fragment.vmodels) fragment.nodes = fragment.vmodels = null } break case "del": //将pos后的el个元素删掉(pos, el都是数字) sweepNodes(comments[pos], comments[pos + el] || end) var removed = proxies.splice(pos, el) recycleProxies(removed, "each") break case "clear": start = comments[0] if (start) { sweepNodes(start, end) if (data.xtype === "object") { parent.insertBefore(start, end) }else{ recycleProxies(proxies, "each") } } break case "move": start = comments[0] if (start) { var signature = start.nodeValue var rooms = [] var room = [], node sweepNodes(start, end, function () { room.unshift(this) if (this.nodeValue === signature) { rooms.unshift(room) room = [] } }) sortByIndex(rooms, pos) sortByIndex(proxies, pos) while (room = rooms.shift()) { while (node = room.shift()) { transation.appendChild(node) } } parent.insertBefore(transation, end) } break case "index": //将proxies中的第pos个起的所有元素重新索引 var last = proxies.length - 1 for (; el = proxies[pos]; pos++) { el.$index = pos el.$first = pos === 0 el.$last = pos === last } return case "set": //将proxies中的第pos个元素的VM设置为el(pos为数字,el任意) proxy = proxies[pos] if (proxy) { fireDependencies(proxy.$events[data.param || "el"]) } break case "append": var object = data.$repeat //原来第2参数, 被循环对象 var pool = Array.isArray(proxies) ||!proxies ? {}: proxies //代理对象组成的hash data.proxies = pool var keys = [] fragments = [] for (var key in pool) { if (!object.hasOwnProperty(key)) { proxyRecycler(pool[key], withProxyPool) //去掉之前的代理VM delete(pool[key]) } } for (key in object) { //得到所有键名 if (object.hasOwnProperty(key) && key !== "hasOwnProperty") { keys.push(key) } } if (data.sortedCallback) { //如果有回调,则让它们排序 var keys2 = data.sortedCallback.call(parent, keys) if (keys2 && Array.isArray(keys2) && keys2.length) { keys = keys2 } } for (i = 0; key = keys[i++]; ) { if (key !== "hasOwnProperty") { pool[key] = withProxyAgent(pool[key], key, data) shimController(data, transation, pool[key], fragments) } } parent.insertBefore(transation, end) for (i = 0; fragment = fragments[i++]; ) { scanNodeArray(fragment.nodes, fragment.vmodels) fragment.nodes = fragment.vmodels = null } break } if (!data.$repeat || data.$repeat.hasOwnProperty("$lock")) //IE6-8 VBScript对象会报错, 有时候data.$repeat不存在 return if (method === "clear") method = "del" var callback = data.renderedCallback || noop, args = arguments if (parent.oldValue && parent.tagName === "SELECT") { //fix #503 avalon(parent).val(parent.oldValue.split(",")) } callback.apply(parent, args) } } "with,each".replace(rword, function (name) { bindingHandlers[name] = bindingHandlers.repeat }) function shimController(data, transation, proxy, fragments) { var content = data.template.cloneNode(true) var nodes = avalon.slice(content.childNodes) content.insertBefore(DOC.createComment(data.signature), content.firstChild) transation.appendChild(content) var nv = [proxy].concat(data.vmodels) var fragment = { nodes: nodes, vmodels: nv } fragments.push(fragment) } function getComments(data) { var ret = [] var nodes = data.element.parentNode.childNodes for (var i = 0, node; node = nodes[i++]; ) { if (node.nodeValue === data.signature) { ret.push(node) } else if (node.nodeValue === data.signature + ":end") { break } } return ret } //移除掉start与end之间的节点(保留end) function sweepNodes(start, end, callback) { while (true) { var node = end.previousSibling if (!node) break node.parentNode.removeChild(node) callback && callback.call(node) if (node === start) { break } } } // 为ms-each,ms-with, ms-repeat会创建一个代理VM, // 通过它们保持一个下上文,让用户能调用$index,$first,$last,$remove,$key,$val,$outer等属性与方法 // 所有代理VM的产生,消费,收集,存放通过xxxProxyFactory,xxxProxyAgent, recycleProxies,xxxProxyPool实现 var withProxyPool = [] function withProxyFactory() { var proxy = modelFactory({ $key: "", $outer: {}, $host: {}, $val: { get: function () { return this.$host[this.$key] }, set: function (val) { this.$host[this.$key] = val } } }, { $val: 1 }) proxy.$id = generateID("$proxy$with") return proxy } function withProxyAgent(proxy, key, data) { proxy = proxy || withProxyPool.pop() if (!proxy) { proxy = withProxyFactory() } else { proxy.$reinitialize() } var host = data.$repeat proxy.$key = key proxy.$host = host proxy.$outer = data.$outer if (host.$events) { proxy.$events.$val = host.$events[key] } else { proxy.$events = {} } return proxy } function recycleProxies(proxies) { eachProxyRecycler(proxies) } function eachProxyRecycler(proxies) { proxies.forEach(function (proxy) { proxyRecycler(proxy, eachProxyPool) }) proxies.length = 0 } var eachProxyPool = [] function eachProxyFactory(name) { var source = { $host: [], $outer: {}, $index: 0, $first: false, $last: false, $remove: avalon.noop } source[name] = { get: function () { var e = this.$events var array = e.$index e.$index = e[name] //#817 通过$index为el收集依赖 try { return this.$host[this.$index] } finally { e.$index = array } }, set: function (val) { try { var e = this.$events var array = e.$index e.$index = [] this.$host.set(this.$index, val) } finally { e.$index = array } } } var second = { $last: 1, $first: 1, $index: 1 } var proxy = modelFactory(source, second) proxy.$id = generateID("$proxy$each") return proxy } function eachProxyAgent(index, data) { var param = data.param || "el", proxy for (var i = 0, n = eachProxyPool.length; i < n; i++) { var candidate = eachProxyPool[i] if (candidate && candidate.hasOwnProperty(param)) { proxy = candidate eachProxyPool.splice(i, 1) } } if (!proxy) { proxy = eachProxyFactory(param) } var host = data.$repeat var last = host.length - 1 proxy.$index = index proxy.$first = index === 0 proxy.$last = index === last proxy.$host = host proxy.$outer = data.$outer proxy.$remove = function () { return host.removeAt(proxy.$index) } return proxy } function proxyRecycler(proxy, proxyPool) { for (var i in proxy.$events) { var arr = proxy.$events[i] if (Array.isArray(arr)) { arr.forEach(function (data) { if (typeof data === "object") disposeData(data) })// jshint ignore:line arr.length = 0 } } proxy.$host = proxy.$outer = {} if (proxyPool.unshift(proxy) > kernel.maxRepeatSize) { proxyPool.pop() } } /********************************************************************* * 各种指令 * **********************************************************************/ //ms-skip绑定已经在scanTag 方法中实现 // bindingHandlers.text 定义在if.js bindingExecutors.text = function(val, elem) { val = val == null ? "" : val //不在页面上显示undefined null if (elem.nodeType === 3) { //绑定在文本节点上 try { //IE对游离于DOM树外的节点赋值会报错 elem.data = val } catch (e) {} } else { //绑定在特性节点上 if ("textContent" in elem) { elem.textContent = val } else { elem.innerText = val } } } function parseDisplay(nodeName, val) { //用于取得此类标签的默认display值 var key = "_" + nodeName if (!parseDisplay[key]) { var node = DOC.createElement(nodeName) root.appendChild(node) if (W3C) { val = getComputedStyle(node, null).display } else { val = node.currentStyle.display } root.removeChild(node) parseDisplay[key] = val } return parseDisplay[key] } avalon.parseDisplay = parseDisplay bindingHandlers.visible = function (data, vmodels) { parseExprProxy(data.value, vmodels, data) } bindingExecutors.visible = function (val, elem, binding) { if (val) { elem.style.display = binding.display || "" if (avalon(elem).css("display") === "none") { elem.style.display = binding.display = parseDisplay(elem.nodeName) } } else { elem.style.display = "none" } } bindingHandlers.widget = function(data, vmodels) { var args = data.value.match(rword) var elem = data.element var widget = args[0] var id = args[1] if (!id || id === "$") { //没有定义或为$时,取组件名+随机数 id = generateID(widget) } var optName = args[2] || widget //没有定义,取组件名 var constructor = avalon.ui[widget] if (typeof constructor === "function") { //ms-widget="tabs,tabsAAA,optname" vmodels = elem.vmodels || vmodels for (var i = 0, v; v = vmodels[i++];) { if (v.hasOwnProperty(optName) && typeof v[optName] === "object") { var vmOptions = v[optName] vmOptions = vmOptions.$model || vmOptions break } } if (vmOptions) { var wid = vmOptions[widget + "Id"] if (typeof wid === "string") { log("warning!不再支持" + widget + "Id") id = wid } } //抽取data-tooltip-text、data-tooltip-attr属性,组成一个配置对象 var widgetData = avalon.getWidgetData(elem, widget) data.value = [widget, id, optName].join(",") data[widget + "Id"] = id data.evaluator = noop elem.msData["ms-widget-id"] = id var options = 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 if (vmodel.$id) { avalon.vmodels[id] = vmodel createSignalTower(elem, vmodel) try { vmodel.$init(function() { avalon.scan(elem, [vmodel].concat(vmodels)) if (typeof options.onInit === "function") { options.onInit.call(elem, vmodel, options, vmodels) } }) } catch (e) {log(e)} data.rollback = function() { try { vmodel.$remove() vmodel.widgetElement = null // 放到$remove后边 } catch (e) {} elem.msData = {} delete avalon.vmodels[vmodel.$id] } injectDisposeQueue(data, widgetList) if (window.chrome) { elem.addEventListener("DOMNodeRemovedFromDocument", function() { setTimeout(rejectDisposeQueue) }) } } else { avalon.scan(elem, vmodels) } } 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 widgetList = [] //不存在 bindingExecutors.widget /********************************************************************* * 自带过滤器 * **********************************************************************/ var rscripts = /]*>([\S\s]*?)<\/script\s*>/gim var ron = /\s+(on[^=\s]+)(?:=("[^"]*"|'[^']*'|[^\s>]+))?/g var ropen = /<\w+\b(?:(["'])[^"]*?(\1)|[^>])*>/ig var rsanitize = { a: /\b(href)\=("javascript[^"]*"|'javascript[^']*')/ig, img: /\b(src)\=("javascript[^"]*"|'javascript[^']*')/ig, form: /\b(action)\=("javascript[^"]*"|'javascript[^']*')/ig } var rsurrogate = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g var rnoalphanumeric = /([^\#-~| |!])/g; function numberFormat(number, decimals, point, thousands) { //form http://phpjs.org/functions/number_format/ //number 必需,要格式化的数字 //decimals 可选,规定多少个小数位。 //point 可选,规定用作小数点的字符串(默认为 . )。 //thousands 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。 number = (number + '') .replace(/[^0-9+\-Ee.]/g, '') var n = !isFinite(+number) ? 0 : +number, prec = !isFinite(+decimals) ? 3 : Math.abs(decimals), sep = thousands || ",", dec = point || ".", s = '', toFixedFix = function(n, prec) { var k = Math.pow(10, prec) return '' + (Math.round(n * k) / k) .toFixed(prec) } // 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) } var filters = avalon.filters = { uppercase: function(str) { return str.toUpperCase() }, lowercase: function(str) { return str.toLowerCase() }, truncate: function(str, 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 = typeof truncation === "string" ? truncation : "..." return str.length > length ? str.slice(0, length - truncation.length) + truncation : String(str) }, $filter: function(val) { for (var i = 1, n = arguments.length; i < n; i++) { var array = arguments[i] var fn = avalon.filters[array[0]] if (typeof fn === "function") { var arr = [val].concat(array.slice(1)) val = fn.apply(null, arr) } } return val }, camelize: camelize, //https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet // chrome // chrome // IE67chrome // IE67chrome // IE67chrome sanitize: function(str) { return str.replace(rscripts, "").replace(ropen, function(a, b) { var match = a.toLowerCase().match(/<(\w+)\s/) if (match) { //处理a标签的href属性,img标签的src属性,form标签的action属性 var reg = rsanitize[match[1]] if (reg) { a = a.replace(reg, function(s, name, value) { var quote = value.charAt(0) return name + "=" + quote + "javascript:void(0)" + quote// jshint ignore:line }) } } return a.replace(ron, " ").replace(/\s+/g, " ") //移除onXXX事件 }) }, escape: function(str) { //将字符串经过 str 转义得到适合在页面中显示的内容, 例如替换 < 为 < return String(str). 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, '>') }, currency: function(amount, symbol, fractionSize) { return (symbol || "\u00a5") + numberFormat(amount, isFinite(fractionSize) ? fractionSize : 2) }, number: numberFormat } /* '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() {// jshint ignore:line function toInt(str) { return parseInt(str, 10) || 0 } 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 rdateFormat = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+|H+|h+|m+|s+|a|Z))(.*)/ var raspnetjson = /^\/Date\((\d+)\)\/$/ filters.date = function(date, format) { var locate = filters.date.locate, text = "", parts = [], fn, match format = format || "mediumDate" format = locate[format] || format if (typeof date === "string") { if (/^\d+$/.test(date)) { date = toInt(date) } else if (raspnetjson.test(date)) { date = +RegExp.$1 } else { var trimDate = date.trim() var dateArray = [0, 0, 0, 0, 0, 0, 0] var oDate = new Date(0) //取得年月日 trimDate = trimDate.replace(/^(\d+)\D(\d+)\D(\d+)/, function(_, a, b, c) { var array = c.length === 4 ? [c, a, b] : [a, b, c] dateArray[0] = toInt(array[0]) //年 dateArray[1] = toInt(array[1]) - 1 //月 dateArray[2] = toInt(array[2]) //日 return "" }) var dateSetter = oDate.setFullYear var timeSetter = oDate.setHours trimDate = trimDate.replace(/[T\s](\d+):(\d+):?(\d+)?\.?(\d)?/, function(_, a, b, c, d) { dateArray[3] = toInt(a) //小时 dateArray[4] = toInt(b) //分钟 dateArray[5] = toInt(c) //秒 if (d) { //毫秒 dateArray[6] = Math.round(parseFloat("0." + d) * 1000) } return "" }) var tzHour = 0 var tzMin = 0 trimDate = trimDate.replace(/Z|([+-])(\d\d):?(\d\d)/, function(z, symbol, c, d) { dateSetter = oDate.setUTCFullYear timeSetter = oDate.setUTCHours if (symbol) { tzHour = toInt(symbol + c) tzMin = toInt(symbol + d) } return "" }) dateArray[3] -= tzHour dateArray[4] -= tzMin dateSetter.apply(oDate, dateArray.slice(0, 3)) timeSetter.apply(oDate, dateArray.slice(3)) date = oDate } } if (typeof date === "number") { date = new Date(date) } if (avalon.type(date) !== "date") { return } while (format) { match = rdateFormat.exec(format) if (match) { parts = parts.concat(match.slice(1)) format = parts.pop() } else { parts.push(format) format = null } } parts.forEach(function(value) { fn = DATE_FORMATS[value] text += fn ? fn(date, locate) : value.replace(/(^'|'$)/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 H:mm:ss", mediumDate: "yyyy-M-d", mediumTime: "H:mm:ss", "short": "yy-M-d ah:mm", shortDate: "yy-M-d", shortTime: "ah:mm" } locate.SHORTMONTH = locate.MONTH filters.date.locate = locate }// jshint ignore:line /********************************************************************* * AMD加载器 * **********************************************************************/ //https://www.devbridge.com/articles/understanding-amd-requirejs/ //http://maxogden.com/nested-dependencies.html var modules = avalon.modules = { "domReady!": { exports: avalon, state: 3 }, "avalon": { exports: avalon, state: 4 } } var otherRequire = window.require var otherDefine = window.define var innerRequire plugins.loader = function (builtin) { var flag = innerRequire && builtin window.require = flag ? innerRequire : otherRequire window.define = flag ? innerRequire.define : otherDefine } //Object(modules[id]).state拥有如下值 // undefined 没有定义 // 1(send) 已经发出请求 // 2(loading) 已经被执行但还没有执行完成,在这个阶段define方法会被执行 // 3(loaded) 执行完毕,通过onload/onreadystatechange回调判定,在这个阶段checkDeps方法会执行 // 4(execute) 其依赖也执行完毕, 值放到exports对象上,在这个阶段fireFactory方法会执行 modules.exports = modules.avalon new function () {// jshint ignore:line var loadings = [] //正在加载中的模块列表 var factorys = [] //放置define方法的factory函数 var rjsext = /\.js$/i function makeRequest(name, config) { //1. 去掉资源前缀 var res = "js" name = name.replace(/^(\w+)\!/, function (a, b) { res = b return "" }) if (res === "ready") { log("debug: ready!已经被废弃,请使用domReady!") res = "domReady" } //2. 去掉querystring, hash var query = "" name = name.replace(rquery, function (a) { query = a return "" }) //3. 去掉扩展名 var suffix = "." + res var ext = /js|css/.test(suffix) ? suffix : "" name = name.replace(/\.[a-z0-9]+$/g, function (a) { if (a === suffix) { ext = a return "" } else { return a } }) var req = avalon.mix({ query: query, ext: ext, res: res, name: name, toUrl: toUrl }, config) req.toUrl(name) return req } function fireRequest(req) { var name = req.name var res = req.res //1. 如果该模块已经发出请求,直接返回 var module = modules[name] var urlNoQuery = name && req.urlNoQuery if (module && module.state >= 1) { return name } module = modules[urlNoQuery] if (module && module.state >= 3) { innerRequire(module.deps || [], module.factory, urlNoQuery) return urlNoQuery } if (name && !module) { module = modules[urlNoQuery] = { id: urlNoQuery, state: 1 //send } var wrap = function (obj) { resources[res] = obj obj.load(name, req, function (a) { if (arguments.length && a !== void 0) { module.exports = a } module.state = 4 checkDeps() }) } if (!resources[res]) { innerRequire([res], wrap) } else { wrap(resources[res]) } } return name ? urlNoQuery : res + "!" } //核心API之一 require var requireQueue = [] var isUserFirstRequire = false innerRequire = avalon.require = function (array, factory, parentUrl, defineConfig) { if (!isUserFirstRequire) { requireQueue.push(avalon.slice(arguments)) if (arguments.length <= 2) { isUserFirstRequire = true var queue = requireQueue.splice(0, requireQueue.length), args while (args = queue.shift()) { innerRequire.apply(null, args) } } return } if (!Array.isArray(array)) { avalon.error("require方法的第一个参数应为数组 " + array) } var deps = [] // 放置所有依赖项的完整路径 var uniq = {} var id = parentUrl || "callback" + setTimeout("1")// jshint ignore:line defineConfig = defineConfig || {} defineConfig.baseUrl = kernel.baseUrl var isBuilt = !!defineConfig.built if (parentUrl) { defineConfig.parentUrl = parentUrl.substr(0, parentUrl.lastIndexOf("/")) defineConfig.mapUrl = parentUrl.replace(rjsext, "") } if (isBuilt) { var req = makeRequest(defineConfig.defineName, defineConfig) id = req.urlNoQuery } else { array.forEach(function (name) { var req = makeRequest(name, defineConfig) var url = fireRequest(req) //加载资源,并返回该资源的完整地址 if (url) { if (!uniq[url]) { deps.push(url) uniq[url] = "司徒正美" //去重 } } }) } var module = modules[id] if (!module || module.state !== 4) { modules[id] = { id: id, deps: isBuilt ? array.concat() : deps, factory: factory || noop, state: 3 } } if (!module) { //如果此模块是定义在另一个JS文件中, 那必须等该文件加载完毕, 才能放到检测列队中 loadings.push(id) } checkDeps() } //核心API之二 require innerRequire.define = function (name, deps, factory) { //模块名,依赖列表,模块本身 if (typeof name !== "string") { factory = deps deps = name name = "anonymous" } if (!Array.isArray(deps)) { factory = deps deps = [] } var config = { built: !isUserFirstRequire, //用r.js打包后,所有define会放到requirejs之前 defineName: name } var args = [deps, factory, config] factory.require = function (url) { args.splice(2, 0, url) if (modules[url]) { modules[url].state = 3 //loaded var isCycle = false try { isCycle = checkCycle(modules[url].deps, url) } catch (e) { } if (isCycle) { avalon.error(url + "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" + url + "模块") } } delete factory.require //释放内存 innerRequire.apply(null, args) //0,1,2 --> 1,2,0 } //根据标准,所有遵循W3C标准的浏览器,script标签会按标签的出现顺序执行。 //老的浏览器中,加载也是按顺序的:一个文件下载完成后,才开始下载下一个文件。 //较新的浏览器中(IE8+ 、FireFox3.5+ 、Chrome4+ 、Safari4+),为了减小请求时间以优化体验, //下载可以是并行的,但是执行顺序还是按照标签出现的顺序。 //但如果script标签是动态插入的, 就未必按照先请求先执行的原则了,目测只有firefox遵守 //唯一比较一致的是,IE10+及其他标准浏览器,一旦开始解析脚本, 就会一直堵在那里,直接脚本解析完毕 //亦即,先进入loading阶段的script标签(模块)必然会先进入loaded阶段 var url = config.built ? "unknown" : getCurrentScript() if (url) { var module = modules[url] if (module) { module.state = 2 } factory.require(url) } else {//合并前后的safari,合并后的IE6-9走此分支 factorys.push(factory) } } //核心API之三 require.config(settings) innerRequire.config = kernel //核心API之四 define.amd 标识其符合AMD规范 innerRequire.define.amd = modules //==========================对用户配置项进行再加工========================== var allpaths = kernel["orig.paths"] = {} var allmaps = kernel["orig.map"] = {} var allpackages = kernel["packages"] = [] var allargs = kernel["orig.args"] = {} avalon.mix(plugins, { paths: function (hash) { avalon.mix(allpaths, hash) kernel.paths = makeIndexArray(allpaths) }, map: function (hash) { avalon.mix(allmaps, hash) var list = makeIndexArray(allmaps, 1, 1) avalon.each(list, function (_, item) { item.val = makeIndexArray(item.val) }) kernel.map = list }, packages: function (array) { array = array.concat(allpackages) var uniq = {} var ret = [] for (var i = 0, pkg; pkg = array[i++]; ) { pkg = typeof pkg === "string" ? {name: pkg} : pkg var name = pkg.name if (!uniq[name]) { var url = joinPath(pkg.location || name, pkg.main || "main") url = url.replace(rjsext, "") ret.push(pkg) uniq[name] = pkg.location = url pkg.reg = makeMatcher(name) } } kernel.packages = ret.sort() }, urlArgs: function (hash) { if (typeof hash === "string") { hash = {"*": hash} } avalon.mix(allargs, hash) kernel.urlArgs = makeIndexArray(allargs, 1) }, baseUrl: function (url) { if (!isAbsUrl(url)) { var baseElement = head.getElementsByTagName("base")[0] if (baseElement) { head.removeChild(baseElement) } var node = DOC.createElement("a") node.href = url url = getFullUrl(node, "href") if (baseElement) { head.insertBefore(baseElement, head.firstChild) } } if (url.length > 3) kernel.baseUrl = url }, shim: function (obj) { for (var i in obj) { var value = obj[i] if (Array.isArray(value)) { value = obj[i] = { deps: value } } if (!value.exportsFn && (value.exports || value.init)) { value.exportsFn = makeExports(value) } } kernel.shim = obj } }) //==============================内部方法================================= function checkCycle(deps, nick) { //检测是否存在循环依赖 for (var i = 0, id; id = deps[i++]; ) { if (modules[id].state !== 4 && (id === nick || checkCycle(modules[id].deps, nick))) { return true } } } function checkFail(node, onError, fuckIE) { var id = trimQuery(node.src) //检测是否死链 node.onload = node.onreadystatechange = node.onerror = null if (onError || (fuckIE && modules[id] && !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 } } 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 if (!deps) continue for (var j = 0, key; key = deps[j]; j++) { if (Object(modules[key]).state !== 4) { 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 !== 4) { 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.deps, 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 } } } var rreadyState = /complete|loaded/ 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 var supportLoad = "onload" in node var onEvent = supportLoad ? "onload" : "onreadystatechange" function onload() { var factory = factorys.pop() factory && factory.require(id) if (callback) { callback() } if (checkFail(node, false, !supportLoad)) { log("debug: 已成功加载 " + url) id && loadings.push(id) checkDeps() } } var index = 0, loadID node[onEvent] = supportLoad ? onload : function () { if (rreadyState.test(node.readyState)) { ++index if (index === 1) { loadID = setTimeout(onload, 500) } else { clearTimeout(loadID) onload() } } } node.onerror = function () { checkFail(node, true) } head.insertBefore(node, head.firstChild) //chrome下第二个参数不能为null 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 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 } var resources = innerRequire.plugins = { //三大常用资源插件 js!, css!, text!, ready! ready: { load: noop }, js: { load: function (name, req, onLoad) { var url = req.url var id = req.urlNoQuery var shim = kernel.shim[name.replace(rjsext, "")] if (shim) { //shim机制 innerRequire(shim.deps || [], function () { var args = avalon.slice(arguments) loadJS(url, id, function () { onLoad(shim.exportsFn ? shim.exportsFn.apply(0, args) : void 0) }) }) } else { loadJS(url, id) } } }, css: { load: function (name, req, onLoad) { var url = req.url var node = DOC.createElement("link") node.rel = "stylesheet" node.href = url head.insertBefore(node, head.firstChild) log("debug: 已成功加载 " + url) onLoad() } }, text: { load: function (name, req, onLoad) { var url = req.url var xhr = getXHR() 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 { log("debug: 已成功加载 " + url) onLoad(xhr.responseText) } } } var time = "_=" + (new Date() - 0) var _url = url.indexOf("?") === -1 ? url + "?" + time : url + "&" + time xhr.open("GET", _url, true) if ("withCredentials" in xhr) {//这是处理跨域 xhr.withCredentials = true } xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest")//告诉后端这是AJAX请求 xhr.send() log("debug: 正准备加载 " + url) } } } innerRequire.checkDeps = checkDeps var rquery = /(\?[^#]*)$/ function trimQuery(url) { return (url || "").replace(rquery, "") } function isAbsUrl(path) { //http://stackoverflow.com/questions/10687099/how-to-test-if-a-url-string-is-absolute-or-relative return /^(?:[a-z]+:)?\/\//i.test(String(path)) } function getFullUrl(node, src) { return"1"[0] ? node[src] : node.getAttribute(src, 4) } function getCurrentScript() { // inspireb by https://github.com/samyk/jiagra/blob/master/jiagra.js var stack try { a.b.c() //强制报错,以便捕获e.stack } catch (e) { //safari5的sourceURL,firefox的fileName,它们的效果与e.stack不一样 stack = e.stack if (!stack && window.opera) { //opera 9没有e.stack,但有e.Backtrace,但不能直接取得,需要对e对象转字符串进行抽取 stack = (String(e).match(/of linked script \S+/g) || []).join(" ") } } if (stack) { /**e.stack最后一行在所有支持的浏览器大致如下: *chrome23: * at http://113.93.50.63/data.js:4:1 *firefox17: *@http://113.93.50.63/query.js:4 *opera12:http://www.oldapps.com/opera.php?system=Windows_XP *@http://113.93.50.63/data.js:4 *IE10: * at Global code (http://113.93.50.63/data.js:4:1) * //firefox4+ 可以用document.currentScript */ stack = stack.split(/[@ ]/g).pop() //取得最后一行,最后一个空格或@之后的部分 stack = stack[0] === "(" ? stack.slice(1, -1) : stack.replace(/\s/, "") //去掉换行符 return trimQuery(stack.replace(/(:\d+)?:\d+$/i, "")) //去掉行号与或许存在的出错字符起始位置 } var nodes = head.getElementsByTagName("script") //只在head标签中寻找 for (var i = nodes.length, node; node = nodes[--i]; ) { if (node.className === subscribers && node.readyState === "interactive") { var url = getFullUrl(node, "src") return node.className = trimQuery(url) } } } var rcallback = /^callback\d+$/ function fireFactory(id, deps, factory) { var module = Object(modules[id]) module.state = 4 for (var i = 0, array = [], d; d = deps[i++]; ) { if (d === "exports") { var obj = module.exports || (module.exports = {}) array.push(obj) } else { array.push(modules[d].exports) } } try { var ret = factory.apply(window, array) } catch (e) { log("执行[" + id + "]模块的factory抛错: ", e) } if (ret !== void 0) { module.exports = ret } if (rcallback.test(id)) { delete modules[id] } delete module.factory return ret } function toUrl(id) { if (id.indexOf(this.res + "!") === 0) { id = id.slice(this.res.length + 1) //处理define("css!style",[], function(){})的情况 } var url = id //1. 是否命中paths配置项 var usePath = 0 var baseUrl = this.baseUrl var rootUrl = this.parentUrl || baseUrl eachIndexArray(id, kernel.paths, function (value, key) { url = url.replace(key, value) usePath = 1 }) //2. 是否命中packages配置项 if (!usePath) { eachIndexArray(id, kernel.packages, function (value, key, item) { url = url.replace(item.name, item.location) }) } //3. 是否命中map配置项 if (this.mapUrl) { eachIndexArray(this.mapUrl, kernel.map, function (array) { eachIndexArray(url, array, function (mdValue, mdKey) { url = url.replace(mdKey, mdValue) rootUrl = baseUrl }) }) } var ext = this.ext if (ext && usePath && url.slice(-ext.length) === ext) { url = url.slice(0, -ext.length) } //4. 转换为绝对路径 if (!isAbsUrl(url)) { rootUrl = this.built || /^\w/.test(url) ? 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