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|
/*==================================================
Copyright (c) 2013-2014 司徒正美 and other contributors
http://www.cnblogs.com/rubylouvre/
https://github.com/RubyLouvre
http://weibo.com/jslouvre/
Released under the MIT license
avalon.modern.js 1.39 build in 2015.1.15
______________________________
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 = Date.now()
//http://stackoverflow.com/questions/7290086/javascript-use-strict-and-nicks-find-global-function
var DOC = window.document
var head = DOC.head //HEAD元素
head.insertAdjacentHTML("afterBegin", '<avalon ms-skip><style id="avalonStyle">.avalonHide{ display: none!important }</style></avalon>')
var ifGroup = head.firstChild
function log() {
if (avalon.config.debug) {
// http://stackoverflow.com/questions/8785624/how-to-safely-wrap-console-log
console.log.apply(console, arguments)
}
}
var subscribers = "$" + expose
var otherRequire = window.require
var otherDefine = window.define
var stopRepeatAssign = false
var rword = /[^, ]+/g //切割字符串为一个个小块,以空格或豆号分开它们,结合replace实现字符串的forEach
var rcomplexType = /^(?:object|array)$/
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 Registry = {} //将函数曝光到此对象上,方便访问器收集依赖
var W3C = window.dispatchEvent
var root = DOC.documentElement
var hyperspace = DOC.createDocumentFragment()
var cinerator = DOC.createElement("div")
var class2type = {}
"Boolean Number String Function Array Date RegExp Object Error".replace(rword, function (name) {
class2type["[object " + name + "]"] = name.toLowerCase()
})
function noop() {
}
function 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
}
function createCache(maxLength) {
var keys = []
function cache(key, value) {
if (keys.push(key) > maxLength) {
delete cache[keys.shift()]
}
return cache[key] = value;
}
return cache;
}
//生成UUID http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript
var generateID = function (prefix) {
prefix = prefix || "avalon"
return (prefix + Math.random() + Math.random()).replace(/0\./g, "")
}
function IE() {
if (window.VBArray) {
var mode = document.documentMode
return mode ? mode : window.XMLHttpRequest ? 7 : 6
} else {
return 0
}
}
var IEVersion = IE()
/*********************************************************************
* avalon的静态方法定义区 *
**********************************************************************/
avalon = function (el) { //创建jQuery式的无new 实例化结构
return new avalon.init(el)
}
avalon.init = function (el) {
this[0] = this.element = el
}
avalon.fn = avalon.prototype = avalon.init.prototype
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 = function (fn) {
return serialize.call(fn) == "[object Function]"
}
avalon.isFunction = isFunction
avalon.isWindow = function (obj) {
return rwindow.test(serialize.call(obj))
}
/*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) {
// 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]
copy = options[name]
// 防止环引用
if (target === copy) {
continue
}
if (deep && copy && (avalon.isPlainObject(copy) || (copyIsArray = Array.isArray(copy)))) {
if (copyIsArray) {
copyIsArray = false
clone = src && Array.isArray(src) ? src : []
} else {
clone = src && avalon.isPlainObject(src) ? src : {}
}
target[name] = avalon.mix(deep, clone, copy)
} else if (copy !== void 0) {
target[name] = copy
}
}
}
}
return target
}
function _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: 1.39,
ui: {},
log: log,
slice: function (nodes, start, end) {
return aslice.call(nodes, start, end)
},
noop: noop,
/*如果不用Error对象封装一下,str在控制台下可能会乱码*/
error: function (str, e) {
throw new (e || Error)(str)
},
/*将一个以空格或逗号隔开的字符串或数组,转换成一个键值都为1的对象*/
oneObject: oneObject,
/* avalon.range(10)
=> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
avalon.range(1, 11)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
avalon.range(0, 30, 5)
=> [0, 5, 10, 15, 20, 25]
avalon.range(0, -10, -1)
=> [0, -1, -2, -3, -4, -5, -6, -7, -8, -9]
avalon.range(0)
=> []*/
range: function (start, end, step) { // 用于生成整数数组
step || (step = 1)
if (end == null) {
end = start || 0
start = 0
}
var index = -1,
length = Math.max(0, Math.ceil((end - start) / step)),
result = Array(length)
while (++index < length) {
result[index] = start
start += step
}
return result
},
eventHooks: {},
/*绑定事件*/
bind: function (el, type, fn, phase) {
var hooks = avalon.eventHooks
var hook = hooks[type]
if (typeof hook === "object") {
type = hook.type
if (hook.deel) {
fn = hook.deel(el, fn)
}
}
el.addEventListener(type, fn, !!phase)
return fn
},
/*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
}
el.removeEventListener(type, callback, !!phase)
},
/*读写删除元素节点的样式*/
css: function (node, name, value) {
if (node instanceof avalon) {
node = node[0]
}
var prop = /[_-]/.test(name) ? camelize(name) : name
name = avalon.cssName(prop) || prop
if (value === void 0 || typeof value === "boolean") { //获取样式
var fn = cssHooks[prop + ":get"] || cssHooks["@:get"]
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++) {
fn(i, obj[i])
}
} else {
for (i in obj) {
if (obj.hasOwnProperty(i)) {
fn(i, obj[i])
}
}
}
}
},
//收集元素的data-{{prefix}}-*属性,并转换为对象
getWidgetData: function (elem, prefix) {
var raw = avalon(elem).data()
var result = {}
for (var i in raw) {
if (i.indexOf(prefix) === 0) {
result[i.replace(prefix, "").replace(/\w/, function (a) {
return a.toLowerCase()
})] = raw[i]
}
}
return result
},
Array: {
/*只有当前数组不存在此元素时只添加它*/
ensure: function (target, item) {
if (target.indexOf(item) === -1) {
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 && typeof obj === "object") {
var n = obj.length,
str = serialize.call(obj)
if (/(Array|List|Collection|Map|Arguments)\]$/.test(str)) {
return true
} else if (str === "[object Object]" && n === (n >>> 0)) {
return true //由于ecma262v5能修改对象属性的enumerable,因此不能用propertyIsEnumerable来判定了
}
}
return false
}
/*视浏览器情况采用最快的异步回调(在avalon.ready里,还有一个分支,用于处理IE6-9)*/
avalon.nextTick = window.setImmediate ? setImmediate.bind(window) : function (callback) {
setTimeout(callback, 0) //IE10-11 or W3C
}
/*********************************************************************
* DOM 底层补丁 *
**********************************************************************/
if (!root.contains) { //safari5+是把contains方法放在Element.prototype上而不是Node.prototype
Node.prototype.contains = function (arg) {
return !!(this.compareDocumentPosition(arg) & 16)
}
}
avalon.contains = function (root, el) {
try {
while ((el = el.parentNode))
if (el === root)
return true;
return false
} catch (e) {
return false
}
}
if (window.SVGElement) {
var svgns = "http://www.w3.org/2000/svg"
var svg = DOC.createElementNS(svgns, "svg")
svg.innerHTML = '<circle cx="50" cy="50" r="40" fill="red" />'
if (!rsvg.test(svg.firstChild)) {// #409
function enumerateNode(node, targetNode) {
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())
// copy attrs
ap.forEach.call(el.attributes, function (attr) {
svg.setAttribute(attr.name, attr.value)
})
// 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: function () {
return new XMLSerializer().serializeToString(this)
},
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)
}
}
}
})
}
}
//========================= event binding ====================
var eventHooks = avalon.eventHooks
//针对firefox, chrome修正mouseenter, mouseleave(chrome30+)
if (!("onmouseenter" in root)) {
avalon.each({
mouseenter: "mouseover",
mouseleave: "mouseout"
}, function (origType, fixType) {
eventHooks[origType] = {
type: fixType,
deel: function (elem, fn) {
return function (e) {
var t = e.relatedTarget
if (!t || (t !== elem && !(elem.compareDocumentPosition(t) & 16))) {
delete e.type
e.type = origType
return fn.call(elem, e)
}
}
}
}
})
}
//针对IE9+, w3c修正animationend
avalon.each({
AnimationEvent: "animationend",
WebKitAnimationEvent: "webkitAnimationEnd"
}, function (construct, fixType) {
if (window[construct] && !eventHooks.animationend) {
eventHooks.animationend = {
type: fixType
}
}
})
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 */
eventHooks.mousewheel = {
type: "wheel",
deel: function (elem, fn) {
return function (e) {
e.wheelDeltaY = e.wheelDelta = e.deltaY > 0 ? -120 : 120
e.wheelDeltaX = 0
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 innerRequire = noop
var plugins = {
loader: function (builtin) {
window.define = builtin ? innerRequire.define : otherDefine
window.require = builtin ? innerRequire : otherRequire
},
interpolate: function (array) {
openTag = array[0]
closeTag = array[1]
if (openTag === closeTag) {
throw new SyntaxError("openTag!==closeTag")
} else if (array + "" === "<!--,-->") {
kernel.commentInterpolate = true
} else {
var test = openTag + "test" + closeTag
cinerator.innerHTML = test
if (cinerator.innerHTML !== test && cinerator.innerHTML.indexOf("<") > -1) {
throw new SyntaxError("此定界符不合法")
}
cinerator.innerHTML = ""
}
var o = escapeRegExp(openTag),
c = escapeRegExp(closeTag)
rexpr = new RegExp(o + "(.*?)" + c)
rexprg = new RegExp(o + "(.*?)" + c, "g")
rbind = new RegExp(o + ".*?" + c + "|\\sms-")
}
}
kernel.debug = true
kernel.plugins = plugins
kernel.plugins['interpolate'](["{{", "}}"])
kernel.paths = {}
kernel.shim = {}
kernel.maxRepeatSize = 100
avalon.config = kernel
/*********************************************************************
* 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
},
$fire: function (type) {
var special
if (/^(\w+)!(\S+)$/.test(type)) {
special = RegExp.$1
type = RegExp.$2
}
var events = this.$events
var args = aslice.call(arguments, 1)
var detail = [type].concat(args)
if (special === "all") {
for (var i in avalon.vmodels) {
var v = avalon.vmodels[i]
if (v !== this) {
v.$fire.apply(v, detail)
}
}
} else if (special === "up" || special === "down") {
var elements = events.expr ? findNodes(events.expr) : []
if (elements.length === 0)
return
for (var i in avalon.vmodels) {
var v = avalon.vmodels[i]
if (v !== this) {
if (v.$events.expr) {
var eventNodes = findNodes(v.$events.expr)
if (eventNodes.length === 0) {
continue
}
//循环两个vmodel中的节点,查找匹配(向上匹配或者向下匹配)的节点并设置标识
Array.prototype.forEach.call(eventNodes, function (node) {
Array.prototype.forEach.call(elements, function (element) {
var ok = special === "down" ? element.contains(node) : //向下捕获
node.contains(element) //向上冒泡
if (ok) {
node._avalon = v //符合条件的加一个标识
}
});
})
}
}
}
var nodes = DOC.getElementsByTagName("*") //实现节点排序
var alls = []
Array.prototype.forEach.call(nodes, function (el) {
if (el._avalon) {
alls.push(el._avalon)
el._avalon = ""
el.removeAttribute("_avalon")
}
})
if (special === "up") {
alls.reverse()
}
for (var i = 0, el; el = alls[i++];) {
if (el.$fire.apply(el, detail) === false) {
break
}
}
} else {
var callbacks = events[type] || []
var all = events.$all || []
for (var i = 0, callback; callback = callbacks[i++];) {
if (isFunction(callback))
callback.apply(this, args)
}
for (var i = 0, callback; callback = all[i++];) {
if (isFunction(callback))
callback.apply(this, arguments)
}
}
}
}
var ravalon = /(\w+)\[(avalonctrl)="(\S+)"\]/
var findNodes = function (str) {
//pc safari v5.1: typeof DOC.querySelectorAll(str) === 'function'
//https://gist.github.com/DavidBruant/1016007
return DOC.querySelectorAll(str)
}
/*********************************************************************
* 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 $$skipArray = String("$id,$watch,$unwatch,$fire,$events,$model,$skipArray").match(rword)
function isObservable(name, value, $skipArray) {
if (isFunction(value) || value && value.nodeType) {
return false
}
if ($skipArray.indexOf(name) !== -1) {
return false
}
if ($$skipArray.indexOf(name) !== -1) {
return false
}
var $special = $skipArray.$special
if (name && name.charAt(0) === "$" && !$special[name]) {
return false
}
return true
}
//ms-with,ms-each, ms-repeat绑定生成的代理对象储存池
var midway = {}
function getNewValue(accessor, name, value, $vmodel) {
switch (accessor.type) {
case 0://计算属性
var getter = accessor.get
var setter = accessor.set
if (isFunction(setter)) {
var $events = $vmodel.$events
var lock = $events[name]
$events[name] = [] //清空回调,防止内部冒泡而触发多次$fire
setter.call($vmodel, value)
$events[name] = lock
}
return getter.call($vmodel) //同步$model
case 1://监控属性
return value
case 2://对象属性(包括数组与哈希)
if (value !== $vmodel.$model[name]) {
var svmodel = accessor.svmodel = objectFactory($vmodel, name, value, accessor.valueType)
value = svmodel.$model //同步$model
var fn = midway[svmodel.$id]
fn && fn() //同步视图
}
return value
}
}
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, $model) {
if (Array.isArray(source)) {
var arr = source.concat()
source.length = 0
var collection = Collection(source)
collection.pushArray(arr)
return collection
}
if (typeof source.nodeType === "number") {
return source
}
if (source.$id && source.$events) { //fix IE6-8 createWithProxy $val: val引发的BUG
return source
}
if (!Array.isArray(source.$skipArray)) {
source.$skipArray = []
}
source.$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 watchedProperties = {} //监控属性
var initCallbacks = [] //初始化才执行的函数
for (var i in source) {
(function (name, val) {
$model[name] = val
if (!isObservable(name, val, source.$skipArray)) {
return //过滤所有非监控属性
}
//总共产生三种accessor
$events[name] = []
var valueType = avalon.type(val)
var accessor = function (newValue) {
var name = accessor._name
var $vmodel = this
var $model = $vmodel.$model
var oldValue = $model[name]
var $events = $vmodel.$events
if (arguments.length) {
if (stopRepeatAssign) {
return
}
//计算属性与对象属性需要重新计算newValue
if (accessor.type !== 1) {
newValue = getNewValue(accessor, name, newValue, $vmodel)
}
if (!isEqual(oldValue, newValue)) {
$model[name] = newValue
if ($events.$digest) {
if (accessor.pedding)
return
accessor.pedding = true
setTimeout(function () {
notifySubscribers($events[name]) //同步视图
safeFire($vmodel, name, $model[name], oldValue) //触发$watch回调
accessor.pedding = false
})
} else {
notifySubscribers($events[name]) //同步视图
safeFire($vmodel, name, newValue, oldValue) //触发$watch回调
}
}
} else {
if (accessor.type === 0) { //type 0 计算属性 1 监控属性 2 对象属性
//计算属性不需要收集视图刷新函数,都是由其他监控属性代劳
return $model[name] = accessor.get.call($vmodel)
} else {
collectSubscribers($events[name]) //收集视图函数
return accessor.svmodel || oldValue
}
}
}
//总共产生三种accessor
if (valueType === "object" && isFunction(val.get) && Object.keys(val).length <= 2) {
//第1种为计算属性, 因变量,通过其他监控属性触发其改变
accessor.set = val.set
accessor.get = val.get
accessor.type = 0
initCallbacks.push(function () {
var data = {
evaluator: function () {
data.element = null
data.type = new Date - 0
$model[name] = accessor.get.call($vmodel)
},
element: head,
type: new Date - 0,
handler: noop,
args: []
}
Registry[expose] = data
accessor.call($vmodel)
delete Registry[expose]
})
} else if (rcomplexType.test(valueType)) {
//第2种为对象属性,产生子VM与监控数组
accessor.type = 2
accessor.valueType = val.valueType
initCallbacks.push(function () {
var svmodel = modelFactory(val, 0, $model[name])
accessor.svmodel = svmodel
svmodel.$events[subscribers] = $events[name]
})
} else {
accessor.type = 1
//第3种为监控属性,对应简单的数据类型,自变量
}
accessor._name = name
watchedProperties[name] = accessor
})(i, source[i])
}
$$skipArray.forEach(function (name) {
delete source[name]
delete $model[name] //这些特殊属性不应该在$model中出现
})
$vmodel = defineProperties($vmodel, descriptorFactory(watchedProperties), source) //生成一个空的ViewModel
for (var name in source) {
if (!watchedProperties[name]) {
$vmodel[name] = source[name]
}
}
//添加$id, $model, $events, $watch, $unwatch, $fire
$vmodel.$id = generateID()
$vmodel.$model = $model
$vmodel.$events = $events
for (var i in EventBus) {
var fn = EventBus[i]
if (!W3C) { //在IE6-8下,VB对象的方法里的this并不指向自身,需要用bind处理一下
fn = fn.bind($vmodel)
}
$vmodel[i] = fn
}
if (canHideOwn) {
Object.defineProperty($vmodel, "hasOwnProperty", {
value: function (name) {
return name in this.$model
},
writable: false,
enumerable: false,
configurable: true
})
} else {
$vmodel.hasOwnProperty = function (name) {
return name in $vmodel.$model
}
}
initCallbacks.forEach(function (cb) { //收集依赖
cb()
})
return $vmodel
}
//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 safeFire(a, b, c, d) {
if (a.$events) {
EventBus.$fire.call(a, b, c, d)
}
}
var descriptorFactory = W3C ? function (obj) {
var descriptors = {}
for (var i in obj) {
descriptors[i] = {
get: obj[i],
set: obj[i],
enumerable: true,
configurable: true
}
}
return descriptors
} : function (a) {
return a
}
//应用于第2种accessor
function objectFactory(parent, name, value, valueType) {
//a为原来的VM, b为新数组或新对象
var son = parent[name]
if (valueType === "array") {
if (!Array.isArray(value) || son === value) {
return son //fix https://github.com/RubyLouvre/avalon/issues/261
}
son.clear()
son.pushArray(value.concat())
return son
} else {
var iterators = parent.$events[name]
var pool = son.$events.$withProxyPool
if (pool) {
recycleProxies(pool, "with")
son.$events.$withProxyPool = null
}
var ret = modelFactory(value)
ret.$events[subscribers] = iterators
midway[ret.$id] = function (data) {
while (data = iterators.shift()) {
(function (el) {
avalon.nextTick(function () {
if (el.type) { //重新绑定
el.rollback && el.rollback() //还原 ms-with ms-on
bindingHandlers[el.type](el, el.vmodels)
}
})
})(data)
}
delete midway[ret.$id]
}
return ret
}
}
/*********************************************************************
* 监控数组(与ms-each, ms-repeat配合使用) *
**********************************************************************/
function Collection(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, CollectionPrototype)
return array
}
function mutateArray(method, pos, n, index, method2, pos2, n2) {
var oldLen = this.length, loop = 2
while (--loop) {
switch (method) {
case "add":
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
}
})
_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 CollectionPrototype = {
_splice: _splice,
_fire: function (method, a, b) {
var list = this.$events[subscribers]
for (var i = 0, fn; fn = list[i++];) {
if (fn.$repeat) {
fn.handler.call(fn, method, a, b) //处理监控数组的方法
}
}
},
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, n)
}
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(arguments)
},
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 m = this.length
if (m) {
var el = this.$model.pop()
mutateArray.call(this, "del", m - 1, 1, Math.max(0, m - 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
args.splice(3, 1, 0, "add", start, m - 2)
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)) {
all.forEach(function (el) {
this.remove(el)
}, this)
} else if (typeof all === "function") {
for (var i = this.length - 1; i >= 0; i--) {
var el = this[i]
if (all(el, i)) {
this.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 >= 0) {
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
}
}
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) {
CollectionPrototype[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)
this._fire("move", indexes)
this._fire("index", 0)
}
return this
}
})
/*********************************************************************
* 依赖调度系统 *
**********************************************************************/
var ronduplex = /^(duplex|on)$/
function registerSubscriber(data) {
Registry[expose] = data //暴光此函数,方便collectSubscribers收集
avalon.openComputedCollect = true
var fn = data.evaluator
if (fn) { //如果是求值函数
try {
var c = ronduplex.test(data.type) ? data : fn.apply(0, data.args)
data.handler(c, data.element, data)
} catch (e) {
//log("warning:exception throwed in [registerSubscriber] " + e)
delete data.evaluator
var node = data.element
if (node.nodeType === 3) {
var parent = node.parentNode
if (kernel.commentInterpolate) {
parent.replaceChild(DOC.createComment(data.value), node)
} else {
node.data = openTag + data.value + closeTag
}
}
}
}
avalon.openComputedCollect = false
delete Registry[expose]
}
function collectSubscribers(list) { //收集依赖于这个访问器的订阅者
var data = Registry[expose]
if (list && data && avalon.Array.ensure(list, data) && data.element) { //只有数组不存在此元素才push进去
addSubscribers(data, list)
}
}
function addSubscribers(data, list) {
data.$uuid = data.$uuid || generateID()
list.$uuid = list.$uuid || generateID()
var obj = {
data: data,
list: list,
$$uuid: data.$uuid + list.$uuid
}
if (!$$subscribers[obj.$$uuid]) {
$$subscribers[obj.$$uuid] = 1
$$subscribers.push(obj)
}
}
function disposeData(data) {
data.element = null
data.rollback && data.rollback()
for (var key in data) {
data[key] = null
}
}
function isRemove(el) {
try {//IE下,如果文本节点脱离DOM树,访问parentNode会报错
if (!el.parentNode) {
return true
}
} catch (e) {
return true
}
return el.msRetain ? 0 : (el.nodeType === 1 ? typeof el.sourceIndex === "number" ?
el.sourceIndex === 0 : !root.contains(el) : !avalon.contains(root, el))
}
var $$subscribers = avalon.$$subscribers = []
var beginTime = new Date()
var oldInfo = {}
function removeSubscribers() {
var i = $$subscribers.length
var n = i
var k = 0
var obj
var types = []
var newInfo = {}
var needTest = {}
while (obj = $$subscribers[--i]) {
var data = obj.data
var type = data.type
if (newInfo[type]) {
newInfo[type]++
} else {
newInfo[type] = 1
types.push(type)
}
}
var diff = false
types.forEach(function (type) {
if (oldInfo[type] !== newInfo[type]) {
needTest[type] = 1
diff = true
}
})
i = n
//avalon.log("需要检测的个数 " + i)
if (diff) {
//avalon.log("有需要移除的元素")
while (obj = $$subscribers[--i]) {
var data = obj.data
if (data.element === void 0)
continue
if (needTest[data.type] && isRemove(data.element)) { //如果它没有在DOM树
k++
$$subscribers.splice(i, 1)
delete $$subscribers[obj.$$uuid]
avalon.Array.remove(obj.list, data)
//log("debug: remove " + data.type)
disposeData(data)
obj.data = obj.list = null
}
}
}
oldInfo = newInfo
// avalon.log("已经移除的个数 " + k)
beginTime = new Date()
}
function notifySubscribers(list) { //通知依赖于这个访问器的订阅者更新自身
if (list && list.length) {
if (new Date() - beginTime > 444 && typeof list[0] === "object") {
removeSubscribers()
}
var args = aslice.call(arguments, 1)
for (var i = list.length, fn; fn = list[--i];) {
var el = fn.element
if (el && el.parentNode) {
if (fn.$repeat) {
fn.handler.apply(fn, args) //处理监控数组的方法
} else if (fn.type !== "on") { //事件绑定只能由用户触发,不能由程序触发
var fun = fn.evaluator || noop
fn.handler(fun.apply(0, fn.args || []), el, fn)
}
}
}
}
}
/************************************************************************
* HTML处理(parseHTML, innerHTML, clearHTML) *
**************************************************************************/
//parseHTML的辅助变量
var tagHooks = new function () {
avalon.mix(this, {
option: DOC.createElement("select"),
thead: DOC.createElement("table"),
td: DOC.createElement("tr"),
area: DOC.createElement("map"),
tr: DOC.createElement("tbody"),
col: DOC.createElement("colgroup"),
legend: DOC.createElement("fieldset"),
_default: DOC.createElement("div"),
"g": DOC.createElementNS("http://www.w3.org/2000/svg", "svg")
})
this.optgroup = this.option
this.tbody = this.tfoot = this.colgroup = this.caption = this.thead
this.th = this.td
}
tagHooks.optgroup = tagHooks.option
tagHooks.tbody = tagHooks.tfoot = tagHooks.colgroup = tagHooks.caption = tagHooks.thead
tagHooks.th = tagHooks.td
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:]+)/
var rxhtml = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/ig
var scriptTypes = oneObject(["", "text/javascript", "text/ecmascript", "application/ecmascript", "application/javascript"])
var script = DOC.createElement("script")
avalon.parseHTML = function (html) {
if (typeof html !== "string") {
html = html + ""
}
html = html.replace(rxhtml, "<$1></$2>").trim()
var tag = (rtagName.exec(html) || ["", ""])[1].toLowerCase(),
//取得其标签名
wrapper = tagHooks[tag] || tagHooks._default,
fragment = hyperspace.cloneNode(false),
firstChild
wrapper.innerHTML = html
var els = wrapper.getElementsByTagName("script")
if (els.length) { //使用innerHTML生成的script节点不会发出请求与执行text属性
for (var i = 0, el; el = els[i++];) {
if (scriptTypes[el.type]) {
var neo = script.cloneNode(false) //FF不能省略参数
ap.forEach.call(el.attributes, function (attr) {
neo.setAttribute(attr.name, attr.value)
})
neo.text = el.text
el.parentNode.replaceChild(neo, el)
}
}
}
while (firstChild = wrapper.firstChild) { // 将wrapper上的节点转移到文档碎片上!
fragment.appendChild(firstChild)
}
return fragment
}
avalon.innerHTML = function (node, html) {
var a = this.parseHTML(html)
this.clearHTML(node).appendChild(a)
}
avalon.clearHTML = function (node) {
node.textContent = ""
while (node.firstChild) {
node.removeChild(node.firstChild)
}
return node
}
/*********************************************************************
* 扫描系统 *
**********************************************************************/
avalon.scan = function (elem, vmodel, group) {
elem = elem || root
var vmodels = vmodel ? [].concat(vmodel) : []
scanTag(elem, vmodels)
}
//http://www.w3.org/TR/html5/syntax.html#void-elements
var stopScan = oneObject("area,base,basefont,br,col,command,embed,hr,img,input,link,meta,param,source,track,wbr,noscript,script,style,textarea".toUpperCase())
function checkScan(elem, callback, innerHTML) {
var id = setTimeout(function () {
var currHTML = elem.innerHTML
clearTimeout(id)
if (currHTML === innerHTML) {
callback()
} else {
checkScan(elem, callback, currHTML)
}
})
}
function createSignalTower(elem, vmodel) {
var id = elem.getAttribute("avalonctrl") || vmodel.$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 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 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")
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)
elem.removeAttribute(node.name) //removeAttributeNode不会刷新[ms-controller]样式规则
elem.classList.remove(node.name)
createSignalTower(elem, newVmodel)
}
scanAttr(elem, vmodels) //扫描特性节点
}
function scanNodeList(parent, vmodels) {
var node = parent.firstChild
while (node) {
var nextNode = node.nextSibling
scanNode(node, node.nodeType, vmodels)
node = nextNode
}
}
function scanNodeArray(nodes, vmodels) {
for (var i = 0, node; node = nodes[i++];) {
scanNode(node, node.nodeType, vmodels)
}
}
function scanNode(node, nodeType, vmodels) {
if (nodeType === 1) {
scanTag(node, vmodels) //扫描元素节点
} else if (nodeType === 3 && rexpr.test(node.data)) {
scanText(node, vmodels) //扫描文本节点
} else if (kernel.commentInterpolate && nodeType === 8 && !rexpr.test(node.nodeValue)) {
scanText(node, vmodels) //扫描注释节点
}
}
function scanAttr(elem, vmodels) {
//防止setAttribute, removeAttribute时 attributes自动被同步,导致for循环出错
var attributes = elem.hasAttributes() ? avalon.slice(elem.attributes) : []
var bindings = [],
msData = {},
match
for (var i = 0, attr; attr = attributes[i++];) {
if (attr.specified) {
if (match = attr.name.match(rmsAttr)) {
//如果是以指定前缀命名的
var type = match[1]
var param = match[2] || ""
var value = attr.value
var name = attr.name
msData[name] = value
if (events[type]) {
param = type
type = "on"
} else if (obsoleteAttrs[type]) {
log("ms-" + type + "已经被废弃,请使用ms-attr-*代替")
if (type === "enabled") {//吃掉ms-enabled绑定,用ms-disabled代替
type = "disabled"
value = "!(" + value + ")"
}
param = type
type = "attr"
elem.removeAttribute(name)
name = "ms-attr-" + param
elem.setAttribute(name, value)
match = [name]
msData[name] = value
}
if (typeof bindingHandlers[type] === "function") {
var binding = {
type: type,
param: param,
element: elem,
name: match[0],
value: value,
priority: type in priorityMap ? priorityMap[type] : type.charCodeAt(0) * 10 + (Number(param) || 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 ""
})
}
if (name === "ms-if-loop") {
binding.priority += 100
}
if (vmodels.length) {
bindings.push(binding)
if (type === "widget") {
elem.msData = elem.msData || msData
}
}
}
}
}
}
if (msData["ms-attr-checked"] && msData["ms-duplex"]) {
log("warning!一个元素上不能同时定义ms-attr-checked与ms-duplex")
}
bindings.sort(bindingSorter)
var scanNode = true
for (var i = 0, binding; binding = bindings[i]; i++) {
var 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 + elem.textContent)) {
mergeTextNodes && mergeTextNodes(elem)
scanNodeList(elem, vmodels) //扫描子孙元素
}
}
var rnoscanAttrBinding = /^if|widget|repeat$/
var rnoscanNodeBinding = /^each|with|html|include$/
var rhasHtml = /\|\s*html\s*/,
r11a = /\|\|/g,
rlt = /</g,
rgt = />/g
function getToken(value) {
if (value.indexOf("|") > 0) {
var index = value.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))
}
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 = []
if (textNode.nodeType === 8) {
var token = getToken(textNode.nodeValue)
var tokens = [token]
} else {
tokens = scanExpr(textNode.data)
}
if (tokens.length) {
for (var i = 0, token; token = tokens[i++];) {
var node = DOC.createTextNode(token.value) //将文本转换为文本节点,并替换原来的文本节点
if (token.expr) {
token.type = "text"
token.element = node
token.filters = token.filters.replace(rhasHtml, function () {
token.type = "html"
token.group = 1
return ""
})
bindings.push(token) //收集带有插值表达式的文本
}
hyperspace.appendChild(node)
}
textNode.parentNode.replaceChild(hyperspace, textNode)
if (bindings.length)
executeBindings(bindings, vmodels)
}
}
/*********************************************************************
* 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) {
//转换为驼峰风格
if (target.indexOf("-") < 0 && target.indexOf("_") < 0) {
return target //提前判断,提高getStyle等的效率
}
return target.replace(/[-_][^-_]/g, function (match) {
return match.charAt(1).toUpperCase()
})
}
"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) {
el.classList[method](c)
})
}
return this
}
})
avalon.fn.mix({
hasClass: function (cls) {
var el = this[0] || {} //IE10+, chrome8+, firefox3.6+, safari5.1+,opera11.5+支持classList,chrome24+,firefox26+支持classList2.0
return el.nodeType === 1 && el.classList.contains(cls)
},
toggleClass: function (value, stateVal) {
var className, i = 0
var classNames = 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)
}
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)
},
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
}
})
if (root.dataset) {
avalon.fn.data = function (name, val) {
var dataset = this[0].dataset
switch (arguments.length) {
case 2:
dataset[name] = val
return this
case 1:
val = dataset[name]
return parseData(val)
case 0:
var ret = {}
for (var name in dataset) {
ret[name] = parseData(dataset[name])
}
return ret
}
}
}
var rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/
avalon.parseJSON = JSON.parse
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) ? JSON.parse(data) : data
} catch (e) {
}
return data
}
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 ? win[prop] : 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 : false
}
//=============================css相关==================================
var cssHooks = avalon.cssHooks = {}
var prefixes = ["", "-webkit-", "-moz-", "-ms-"]//去掉opera-15的支持
var cssMap = {
"float": "cssFloat"
}
avalon.cssNumber = oneObject("columnCount,order,fillOpacity,fontWeight,lineHeight,opacity,orphans,widows,zIndex,zoom")
avalon.cssName = function (name, host, camelCase) {
if (cssMap[name]) {
return cssMap[name]
}
host = host || root.style
for (var i = 0, n = prefixes.length; i < n; i++) {
camelCase = camelize(prefixes[i] + name)
if (camelCase in host) {
return (cssMap[name] = camelCase)
}
}
return null
}
cssHooks["@:set"] = function (node, name, value) {
node.style[name] = value
}
cssHooks["@:get"] = function (node, name) {
if (!node || !node.style) {
throw new Error("getComputedStyle要求传入一个节点 " + node)
}
var ret, computed = getComputedStyle(node, null)
if (computed) {
ret = name === "filter" ? computed.getPropertyValue(name) : computed[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
}
"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
var styles = getComputedStyle(node, null)
if (rdisplayswap.test(styles["display"])) {
var obj = {
node: node
}
for (var name in cssShow) {
obj[name] = styles[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]
}
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,
root = doc.documentElement,
win = doc.defaultView
if (!root.contains(node)) {
return box
}
if (node.getBoundingClientRect !== void 0) {
box = node.getBoundingClientRect()
}
return {
top: box.top + win.pageYOffset - root.clientTop,
left: box.left + win.pageXOffset - root.clientLeft
}
}
//=============================val相关=======================
function getValType(el) {
var ret = el.tagName.toLowerCase()
return ret === "input" && /checkbox|radio/.test(el.type) ? "checked" : ret
}
var valHooks = {
"select:get": function (node, value) {
var option, options = node.options,
index = node.selectedIndex,
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 = option.value
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
for (var i = 0, el; el = node.options[i++];) {
if ((el.selected = values.indexOf(el.value) > -1)) {
optionSet = true
}
}
if (!optionSet) {
node.selectedIndex = -1
}
}
}
/*********************************************************************
* 编译系统 *
**********************************************************************/
var quote = JSON.stringify
var keywords =
// 关键字
"break,case,catch,continue,debugger,default,delete,do,else,false" +
",finally,for,function,if,in,instanceof,new,null,return,switch,this" +
",throw,true,try,typeof,var,void,while,with"
// 保留字
+ ",abstract,boolean,byte,char,class,const,double,enum,export,extends" +
",final,float,goto,implements,import,int,interface,long,native" +
",package,private,protected,public,short,static,super,synchronized" +
",throws,transient,volatile"
// ECMA 5 - use strict
+ ",arguments,let,yield" + ",undefined"
var rrexpstr = /\/\*[\w\W]*?\*\/|\/\/[^\n]*\n|\/\/[^\n]*$|"(?:[^"\\]|\\[\w\W])*"|'(?:[^'\\]|\\[\w\W])*'|[\s\t\n]*\.[\s\t\n]*[$\w\.]+/g
var rsplit = /[^\w$]+/g
var rkeywords = new RegExp(["\\b" + keywords.replace(/,/g, '\\b|\\b') + "\\b"].join('|'), 'g')
var rnumber = /\b\d[^,]*/g
var rcomma = /^,+|,+$/g
var cacheVars = createCache(512)
var getVariables = function (code) {
var key = "," + code.trim()
if (cacheVars[key]) {
return cacheVars[key]
}
var match = code
.replace(rrexpstr, "")
.replace(rsplit, ",")
.replace(rkeywords, "")
.replace(rnumber, "")
.replace(rcomma, "")
.split(/^$|,+/)
return cacheVars(key, uniqSet(match))
}
/*添加赋值语句*/
function addAssign(vars, scope, name, data) {
var ret = [],
prefix = " = " + name + "."
for (var i = vars.length, prop; prop = vars[--i];) {
if (scope.hasOwnProperty(prop)) {
ret.push(prop + prefix + prop)
data.vars.push(prop)
if (data.type === "duplex") {
vars.get = name + "." + prop
}
vars.splice(i, 1)
}
}
return ret
}
function uniqSet(array) {
var ret = [],
unique = {}
for (var i = 0; i < array.length; i++) {
var el = array[i]
var id = el && typeof el.$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 cacheExprs = createCache(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 avalon.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 (_) {
var c = _.charAt(v.length)
var r = IEVersion ? code.slice(arguments[1] + _.length) : RegExp.rightContext
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----------------
var fn = cacheExprs[exprId] //直接从缓存,免得重复生成
if (fn) {
data.evaluator = fn
return
}
var prefix = assigns.join(", ")
if (prefix) {
prefix = "var " + prefix
}
if (/\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)
} else if (dataType === "duplex") { //双工绑定
var _body = "'use strict';\nreturn function(vvv){\n\t" +
prefix +
";\n\tif(!arguments.length){\n\t\treturn " +
code +
"\n\t}\n\t" + (!rduplex.test(code) ? vars.get : code) +
"= vvv;\n} "
try {
fn = Function.apply(noop, names.concat(_body))
data.evaluator = cacheExprs(exprId, fn)
} catch (e) {
log("debug: parse error," + e.message)
}
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("'use strict';\n" + prefix + code))
data.evaluator = cacheExprs(exprId, fn)
} catch (e) {
log("debug: parse error," + e.message)
} finally {
vars = textBuffer = names = null //释放内存
}
}
//parseExpr的智能引用代理
function parseExprProxy(code, scopes, data, tokens, noregister) {
if (Array.isArray(tokens)) {
code = tokens.map(function (el) {
return el.expr ? "(" + el.value + ")" : quote(el.value)
}).join(" + ")
}
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
registerSubscriber(data)
}
}
avalon.parseExprProxy = parseExprProxy
/*********************************************************************
* 各种指令 *
**********************************************************************/
//ms-skip绑定已经在scanTag 方法中实现
//ms-controller绑定已经在scanTag 方法中实现
//ms-important绑定已经在scanTag 方法中实现
var bools = "autofocus,autoplay,async,allowTransparency,checked,controls,declare,disabled,defer,defaultChecked,defaultSelected" +
"contentEditable,isMap,loop,multiple,noHref,noResize,noShade,open,readOnly,selected"
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"
anomaly.replace(rword, function (name) {
propMap[name.toLowerCase()] = name
})
var rnoscripts = /<noscript.*?>(?:[\s\S]+?)<\/noscript>/img
var rnoscriptText = /<noscript.*?>([\s\S]+?)<\/noscript>/im
var getXHR = function () {
return new (window.XMLHttpRequest || ActiveXObject)("Microsoft.XMLHTTP")
}
var cacheTmpls = avalon.templateCache = {}
bindingHandlers.attr = function (data, vmodels) {
var text = data.value.trim(),
simple = true
if (text.indexOf(openTag) > -1 && text.indexOf(closeTag) > 2) {
simple = false
if (rexpr.test(text) && RegExp.rightContext === "" && RegExp.leftContext === "") {
simple = true
text = RegExp.$1
}
}
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.includeReplaced = !!avalon(elem).data("includeReplace")
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(text, vmodels, data, (simple ? 0 : scanExpr(data.value)))
}
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
if (boolMap[attrName]) {
var bool = boolMap[attrName]
if (typeof elem[bool] === "boolean") {
// IE6-11不支持动态设置fieldset的disabled属性,IE11下样式是生效了,但无法阻止用户对其底下的input元素进行设值……
return elem[bool] = !!val
}
}
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]
}
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.includeReplaced
var target = replace ? elem.parentNode : elem
function scanTemplate(text) {
if (loaded) {
text = loaded.apply(target, [text].concat(vmodels))
}
if (rendered) {
checkScan(target, function () {
rendered.call(target)
}, NaN)
}
while (true) {
var node = data.startInclude.nextSibling
if (node && node !== data.endInclude) {
target.removeChild(node)
} else {
break
}
}
var dom = avalon.parseHTML(text)
var nodes = avalon.slice(dom.childNodes)
target.insertBefore(dom, data.endInclude)
scanNodeArray(nodes, vmodels)
}
if (data.param === "src") {
if (cacheTmpls[val]) {
avalon.nextTick(function () {
scanTemplate(cacheTmpls[val])
})
} else {
var xhr = getXHR()
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
var s = xhr.status
if (s >= 200 && s < 300 || s === 304 || s === 1223) {
scanTemplate(cacheTmpls[val] = xhr.responseText)
}
}
}
xhr.open("GET", val, true)
if ("withCredentials" in xhr) {
xhr.withCredentials = true
}
xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest")
xhr.send(null)
}
} else {
//IE系列与够新的标准浏览器支持通过ID取得元素(firefox14+)
//http://tjvantoll.com/2012/07/19/dom-element-references-as-global-variables/
var el = val && val.nodeType === 1 ? val : DOC.getElementById(val)
if (el) {
if (el.tagName === "NOSCRIPT" && !(el.innerHTML || el.fixIE78)) { //IE7-8 innerText,innerHTML都无法取得其内容,IE6能取得其innerHTML
var xhr = getXHR() //IE9-11与chrome的innerHTML会得到转义的内容,它们的innerText可以
xhr.open("GET", location, false) //谢谢Nodejs 乱炖群 深圳-纯属虚构
xhr.send(null)
//http://bbs.csdn.net/topics/390349046?page=1#post-393492653
var noscripts = DOC.getElementsByTagName("noscript")
var array = (xhr.responseText || "").match(rnoscripts) || []
var n = array.length
for (var i = 0; i < n; i++) {
var tag = noscripts[i]
if (tag) { //IE6-8中noscript标签的innerHTML,innerText是只读的
tag.style.display = "none" //http://haslayout.net/css/noscript-Ghost-Bug
tag.fixIE78 = (array[i].match(rnoscriptText) || ["", " "])[1]
}
}
}
avalon.nextTick(function () {
scanTemplate(el.fixIE78 || el.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)
}
}
}
//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
})
//ms-include绑定已由ms-attr绑定实现
//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 (data, vmodels) {
var oldStyle = data.param,
text = data.value,
rightExpr
data.handlerName = "class"
if (!oldStyle || isFinite(oldStyle)) {
data.param = "" //去掉数字
var noExpr = text.replace(rexprg, function (a) {
return a.replace(/./g, "0")
//return Math.pow(10, a.length - 1) //将插值表达式插入10的N-1次方来占位
})
var colonIndex = noExpr.indexOf(":") //取得第一个冒号的位置
if (colonIndex === -1) { // 比如 ms-class="aaa bbb ccc" 的情况
var className = text
} else { // 比如 ms-class-1="ui-state-active:checked" 的情况
className = text.slice(0, colonIndex)
rightExpr = text.slice(colonIndex + 1)
parseExpr(rightExpr, vmodels, data) //决定是添加还是删除
if (!data.evaluator) {
log("debug: ms-class '" + (rightExpr || "").trim() + "' 不存在于VM中")
return false
} else {
data._evaluator = data.evaluator
data._args = data.args
}
}
var hasExpr = rexpr.test(className) //比如ms-class="width{{w}}"的情况
if (!hasExpr) {
data.immobileClass = className
}
parseExprProxy("", vmodels, data, (hasExpr ? scanExpr(className) : 0))
} else {
data.immobileClass = data.oldStyle = data.param
parseExprProxy(text, vmodels, data)
}
}
bindingExecutors ["class"] = function (val, elem, data) {
var $elem = avalon(elem),
method = data.type
if (method === "class" && data.oldStyle) { //如果是旧风格
$elem.toggleClass(data.oldStyle, !!val)
} else {
//如果存在冒号就有求值函数
data.toggleClass = data._evaluator ? !!data._evaluator.apply(elem, data._args) : true
data.newClass = data.immobileClass || val
if (data.oldClass && data.newClass !== data.oldClass) {
$elem.removeClass(data.oldClass)
}
data.oldClass = data.newClass
switch (method) {
case "class":
$elem.toggleClass(data.newClass, data.toggleClass)
break
case "hover":
case "active":
if (!data.hasBindEvent) { //确保只绑定一次
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 () {
data.toggleClass && $elem.removeClass(data.newClass)
})
}
var fn1 = $elem.bind(activate, function () {
data.toggleClass && $elem.addClass(data.newClass)
})
var fn2 = $elem.bind(abandon, function () {
data.toggleClass && $elem.removeClass(data.newClass)
})
data.rollback = function () {
$elem.unbind("mouseleave", fn0)
$elem.unbind(activate, fn1)
$elem.unbind(abandon, fn2)
}
data.hasBindEvent = true
}
break;
}
}
}
"hover,active".replace(rword, function (method) {
bindingHandlers[method] = bindingHandlers["class"]
})
// 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))
}
}
// 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
elem.textContent = val
}
}
// bindingHandlers.html 定义在if.js
bindingExecutors.html = function (val, elem, data) {
val = val == null ? "" : val
var isHtmlFilter = "group" in data
var parent = isHtmlFilter ? elem.parentNode : elem
if (!parent)
return
if (val.nodeType === 11) { //将val转换为文档碎片
var fragment = val
} else if (val.nodeType === 1 || val.item) {
var nodes = val.nodeType === 1 ? val.childNodes : val.item ? val : []
fragment = hyperspace.cloneNode(true)
while (nodes[0]) {
fragment.appendChild(nodes[0])
}
} else {
fragment = avalon.parseHTML(val)
}
//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
var comment = DOC.createComment("ms-html")
if (isHtmlFilter) {
parent.insertBefore(comment, elem)
var n = data.group, i = 1
while (i < n) {
var node = elem.nextSibling
if (node) {
parent.removeChild(node)
i++
}
}
parent.removeChild(elem)
data.element = comment //防止被CG
} else {
avalon.clearHTML(parent).appendChild(comment)
}
if (isHtmlFilter) {
data.group = fragment.childNodes.length || 1
}
var nodes = avalon.slice(fragment.childNodes)
if (nodes[0]) {
if (comment.parentNode)
comment.parentNode.replaceChild(fragment, comment)
if (isHtmlFilter) {
data.element = nodes[0]
}
}
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) {
if (val) { //插回DOM树
if (elem.nodeType === 8) {
elem.parentNode.replaceChild(data.template, elem)
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)
data.template = elem //元素节点
ifGroup.appendChild(elem)
data.rollback = function () {
if (elem.parentNode === ifGroup) {
ifGroup.removeChild(elem)
}
}
}
}
}
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) {
var elem = avalon(data.element)
var display = elem.css("display")
if (display === "none") {
var style = elem[0].style
var has = /visibility/i.test(style.cssText)
var visible = elem.css("visibility")
style.display = ""
style.visibility = "hidden"
display = elem.css("display")
if (display === "none") {
display = parseDisplay(elem[0].nodeName)
}
style.visibility = has ? visible : ""
}
data.display = display
parseExprProxy(data.value, vmodels, data)
}
bindingExecutors.visible = function (val, elem, data) {
elem.style.display = val ? data.display : "none"
}
var rdash = /\(([^)]*)\)/
bindingHandlers.on = function (data, vmodels) {
var value = data.value
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($event)当成aaa处理
value = value.replace(rdash, "")
}
}
parseExprProxy(value, vmodels, data)
}
bindingExecutors.on = function (callback, elem, data) {
data.type = "on"
callback = function (e) {
var fn = data.evaluator || noop
return fn.apply(this, data.args.concat(e))
}
var eventType = data.param.replace(/-\d+$/, "") // 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.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.$model || vmOptions
break
}
}
if (vmOptions) {
var wid = vmOptions[widget + "Id"]
if (typeof wid === "string") {
id = wid
}
}
//抽取data-tooltip-text、data-tooltip-attr属性,组成一个配置对象
var widgetData = avalon.getWidgetData(elem, widget)
data.value = [widget, id, optName].join(",")
data[widget + "Id"] = id
data.evaluator = noop
elem.msData["ms-widget-id"] = id
var options = data[widget + "Options"] = avalon.mix({}, constructor.defaults, vmOptions || {}, widgetData)
elem.removeAttribute("ms-widget")
var vmodel = constructor(elem, data, vmodels) || {} //防止组件不返回VM
if (vmodel.$id) {
avalon.vmodels[id] = vmodel
createSignalTower(elem, vmodel)
if (vmodel.hasOwnProperty("$init")) {
vmodel.$init(function () {
avalon.scan(elem, [vmodel].concat(vmodels))
if (typeof options.onInit === "function") {
options.onInit.call(elem, vmodel, options, vmodels)
}
})
}
data.rollback = function () {
try {
vmodel.widgetElement = null
vmodel.$remove()
} catch (e) {
}
elem.msData = {}
delete avalon.vmodels[vmodel.$id]
}
addSubscribers(data, widgetList)
if (window.chrome) {
elem.addEventListener("DOMNodeRemovedFromDocument", function () {
setTimeout(removeSubscribers)
})
}
} 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
//双工绑定
var duplexBinding = bindingHandlers.duplex = function (data, vmodels) {
var elem = data.element,
hasCast
parseExprProxy(data.value, vmodels, data, 0, 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) {
return isFinite(val) ? parseFloat(val) || 0 : 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 = []
function W3CFire(el, name, detail) {
var event = DOC.createEvent("Events")
event.initEvent(name, true, true)
event.fireByAvalon = true//签名,标记事件是由avalon触发
//event.isTrusted = false 设置这个opera会报错
if (detail)
event.detail = detail
el.dispatchEvent(event)
}
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 () {
try {//#272 IE9-IE11, firefox
var setters = {}
var aproto = HTMLInputElement.prototype
var bproto = HTMLTextAreaElement.prototype
function newSetter(value) {
if (avalon.contains(root, this)) {
setters[this.tagName].call(this, value)
if (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) {
watchValueInTimer = avalon.tick
}
}
//处理radio, checkbox, text, textarea, password
duplexBinding.INPUT = function (element, evaluator, data) {
var type = element.type,
bound = data.bound,
$elem = avalon(element),
composing = false
function callback(value) {
data.changed.call(this, value, data)
}
function compositionStart() {
composing = true
}
function compositionEnd() {
composing = false
}
//当value变化时改变model的值
function updateVModel() {
if (composing)//处理中文输入法在minlengh下引发的BUG
return
var val = element.oldValue = element.value //防止递归调用形成死循环
var lastValue = data.pipe(val, data, "get")
if ($elem.data("duplex-observe") !== false) {
evaluator(lastValue)
callback.call(element, lastValue)
if ($elem.data("duplex-focus")) {
avalon.nextTick(function () {
element.focus()
})
}
}
}
//当model变化时,它就会改变value的值
data.handler = function () {
var val = data.pipe(evaluator(), data, "set")
if (val !== element.oldValue) {
element.value = val
}
}
if (data.isChecked || element.type === "radio") {
updateVModel = function () {
if ($elem.data("duplex-observe") !== false) {
var lastValue = data.pipe(element.value, data, "get")
evaluator(lastValue)
callback.call(element, lastValue)
}
}
data.handler = function () {
var val = evaluator()
var checked = data.isChecked ? !!val : val + "" === element.value
element.checked = element.oldValue = checked
}
bound("click", updateVModel)
} else if (type === "checkbox") {
updateVModel = function () {
if ($elem.data("duplex-observe") !== false) {
var method = element.checked ? "ensure" : "remove"
var array = evaluator()
if (!Array.isArray(array)) {
log("ms-duplex应用于checkbox上要对应一个数组")
array = [array]
}
avalon.Array[method](array, data.pipe(element.value, data, "get"))
callback.call(element, array)
}
}
data.handler = function () {
var array = [].concat(evaluator()) //强制转换为数组
element.checked = array.indexOf(data.pipe(element.value, data, "get")) > -1
}
bound("change", updateVModel)
} else {
var events = element.getAttribute("data-duplex-event") || element.getAttribute("data-event") || "input"
if (element.attributes["data-event"]) {
log("data-event指令已经废弃,请改用data-duplex-event")
}
events.replace(rword, function (name) {
switch (name) {
case "input":
bound("input", updateVModel)
bound("DOMAutoComplete", updateVModel)
if (!IEVersion) {
bound("compositionstart", compositionStart)
bound("compositionend", compositionEnd)
}
break
default:
bound(name, updateVModel)
break
}
})
}
if (/text|password/.test(element.type)) {
watchValueInTimer(function () {
if (root.contains(element)) {
if (element.value !== element.oldValue) {
updateVModel()
}
} else if (!element.msRetain) {
return false
}
})
}
element.avalonSetter = updateVModel
element.oldValue = element.value
registerSubscriber(data)
callback.call(element, element.value)
}
duplexBinding.TEXTAREA = duplexBinding.INPUT
duplexBinding.SELECT = function (element, evaluator, data) {
var $elem = avalon(element)
function updateVModel() {
if ($elem.data("duplex-observe") !== false) {
var val = $elem.val() //字符串或字符串数组
if (Array.isArray(val)) {
val = val.map(function (v) {
return data.pipe(v, data, "get")
})
} else {
val = data.pipe(val, data, "get")
}
if (val + "" !== element.oldValue) {
evaluator(val)
}
data.changed.call(element, val, data)
}
}
data.handler = function () {
var val = evaluator()
val = val && val.$model || val
if (Array.isArray(val)) {
if (!element.multiple) {
log("ms-duplex在<select multiple=true>上要求对应一个数组")
}
} else {
if (element.multiple) {
log("ms-duplex在<select multiple=false>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)
checkScan(element, function () {
registerSubscriber(data)
data.changed.call(element, evaluator(), data)
}, NaN)
}
bindingHandlers.repeat = function (data, vmodels) {
var type = data.type
parseExprProxy(data.value, vmodels, data, 0, 1)
data.proxies = []
var freturn = false
try {
var $repeat = data.$repeat = data.evaluator.apply(0, data.args || [])
var xtype = avalon.type($repeat)
if (xtype !== "object" && xtype !== "array") {
freturn = true
avalon.log("warning:" + data.value + "对应类型不正确")
}
} catch (e) {
freturn = true
avalon.log("warning:" + data.value + "编译出错")
}
var arr = data.value.split(".") || []
if (arr.length > 1) {
arr.pop()
var n = arr[0]
for (var i = 0, v; v = vmodels[i++];) {
if (v && v.hasOwnProperty(n)) {
var events = v[n].$events || {}
events[subscribers] = events[subscribers] || []
events[subscribers].push(data)
break
}
}
}
var elem = data.element
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 comment = data.element = DOC.createComment(signature + ":end")
data.clone = DOC.createComment(signature)
hyperspace.appendChild(comment)
if (type === "each" || type === "with") {
data.template = elem.innerHTML.trim()
avalon.clearHTML(elem).appendChild(comment)
} else {
data.template = elem.outerHTML.trim()
elem.parentNode.replaceChild(comment, elem)
}
data.template = avalon.parseHTML(data.template)
data.rollback = function () {
var elem = data.element
if (!elem)
return
bindingExecutors.repeat.call(data, "clear")
var parentNode = elem.parentNode
var content = data.template
var target = content.firstChild
parentNode.replaceChild(content, elem)
var start = data.$stamp
start && start.parentNode && start.parentNode.removeChild(start)
target = data.element = data.type === "repeat" ? target : parentNode
}
if (freturn) {
return
}
data.handler = bindingExecutors.repeat
data.$outer = {}
var check0 = "$key"
var check1 = "$val"
if (Array.isArray($repeat)) {
check0 = "$first"
check1 = "$last"
}
for (var i = 0, p; p = vmodels[i++];) {
if (p.hasOwnProperty(check0) && p.hasOwnProperty(check1)) {
data.$outer = p
break
}
}
var $events = $repeat.$events
var $list = ($events || {})[subscribers]
if ($list && avalon.Array.ensure($list, data)) {
addSubscribers(data, $list)
}
if (xtype === "object") {
data.$with = true
var pool = !$events ? {} : $events.$withProxyPool || ($events.$withProxyPool = {})
data.handler("append", $repeat, pool)
} else if ($repeat.length) {
data.handler("add", 0, $repeat.length)
}
}
bindingExecutors.repeat = function (method, pos, el) {
if (method) {
var data = this
var end = data.element
var parent = end.parentNode
var proxies = data.proxies
var transation = hyperspace.cloneNode(false)
switch (method) {
case "add": //在pos位置后添加el数组(pos为数字,el为数组)
var n = pos + el
var array = data.$repeat
var last = array.length - 1
var fragments = []
var start = locateNode(data, pos)
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, start)
for (var i = 0, fragment; 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)
start = proxies[pos].$stamp
end = locateNode(data, pos + el)
sweepNodes(start, end)
var removed = proxies.splice(pos, el)
recycleProxies(removed, "each")
break
case "clear":
var check = data.$stamp || proxies[0]
if (check) {
start = check.$stamp || check
sweepNodes(start, end)
}
recycleProxies(proxies, "each")
break
case "move":
start = proxies[0].$stamp
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(proxies, pos)
sortByIndex(rooms, 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.$last = pos === last
}
return
case "set": //将proxies中的第pos个元素的VM设置为el(pos为数字,el任意)
var proxy = proxies[pos]
if (proxy) {
notifySubscribers(proxy.$events.$index)
}
return
case "append": //将pos的键值对从el中取出(pos为一个普通对象,el为预先生成好的代理VM对象池)
var pool = el
var keys = []
var fragments = []
for (var key in pos) { //得到所有键名
if (pos.hasOwnProperty(key) && key !== "hasOwnProperty") {
keys.push(key)
}
}
if (data.sortedCallback) { //如果有回调,则让它们排序
var keys2 = data.sortedCallback.call(parent, keys)
if (keys2 && Array.isArray(keys2) && keys2.length) {
keys = keys2
}
}
for (var i = 0, key; key = keys[i++];) {
if (key !== "hasOwnProperty") {
if (!pool[key]) {
pool[key] = withProxyAgent(key, data)
}
shimController(data, transation, pool[key], fragments)
}
}
var comment = data.$stamp = data.clone
parent.insertBefore(comment, end)
parent.insertBefore(transation, end)
for (var i = 0, fragment; fragment = fragments[i++];) {
scanNodeArray(fragment.nodes, fragment.vmodels)
fragment.nodes = fragment.vmodels = null
}
break
}
if (method === "clear")
method = "del"
var callback = data.renderedCallback || noop,
args = arguments
checkScan(parent, function () {
callback.apply(parent, args)
if (parent.oldValue && parent.tagName === "SELECT") { //fix #503
avalon(parent).val(parent.oldValue.split(","))
}
}, NaN)
}
}
"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)
if (proxy.$stamp) {
content.insertBefore(proxy.$stamp, content.firstChild)
}
transation.appendChild(content)
var nv = [proxy].concat(data.vmodels)
var fragment = {
nodes: nodes,
vmodels: nv
}
fragments.push(fragment)
}
function locateNode(data, pos) {
var proxy = data.proxies[pos]
return proxy ? proxy.$stamp : data.element
}
function sweepNodes(start, end, callback) {
while (true) {
var node = end.previousSibling
if (!node)
break
node.parentNode.removeChild(node)
callback && callback.call(node)
if (node === start) {
break
}
}
}
// 为ms-each,ms-with, ms-repeat会创建一个代理VM,
// 通过它们保持一个下上文,让用户能调用$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 eachProxyPool = []
var withProxyPool = []
function eachProxyFactory(name) {
var source = {
$host: [],
$outer: {},
$stamp: 1,
$index: 0,
$first: false,
$last: false,
$remove: avalon.noop
}
source[name] = {
get: function () {
return this.$host[this.$index]
},
set: function (val) {
this.$host.set(this.$index, val)
}
}
var second = {
$last: 1,
$first: 1,
$index: 1
}
var proxy = modelFactory(source, second)
var e = proxy.$events
e[name] = e.$first = e.$last = e.$index
proxy.$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.$outer
proxy.$stamp = data.clone.cloneNode(false)
proxy.$remove = function () {
return host.removeAt(proxy.$index)
}
return proxy
}
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(key, data) {
var proxy = withProxyPool.pop()
if (!proxy) {
proxy = withProxyFactory()
}
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, type) {
var proxyPool = type === "each" ? eachProxyPool : withProxyPool
avalon.each(proxies, function (key, proxy) {
if (proxy.$events) {
for (var i in proxy.$events) {
if (Array.isArray(proxy.$events[i])) {
proxy.$events[i].forEach(function (data) {
if (typeof data === "object")
disposeData(data)
})
proxy.$events[i].length = 0
}
}
proxy.$host = proxy.$outer = {}
if (proxyPool.unshift(proxy) > kernel.maxRepeatSize) {
proxyPool.pop()
}
}
})
if (type === "each")
proxies.length = 0
}
/*********************************************************************
* 自带过滤器 *
**********************************************************************/
var rscripts = /<script[^>]*>([\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, dec_point, thousands_sep) {
//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。
//dec_point 可选,规定用作小数点的字符串(默认为 . )。
//thousands_sep 可选,规定用作千位分隔符的字符串(默认为 , ),如果设置了该参数,那么所有其他参数都是必需的。
number = (number + '')
.replace(/[^0-9+\-Ee.]/g, '')
var n = !isFinite(+number) ? 0 : +number,
prec = !isFinite(+decimals) ? 0 : Math.abs(decimals),
sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep,
dec = (typeof dec_point === 'undefined') ? '.' : 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 = truncation === void(0) ? "..." : 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.shift()]
if (typeof fn === "function") {
var arr = [val].concat(array)
val = fn.apply(null, arr)
}
}
return val
},
camelize: camelize,
//https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
// <a href="javasc
ript:alert('XSS')">chrome</a>
// <a href="data:text/html;base64, PGltZyBzcmM9eCBvbmVycm9yPWFsZXJ0KDEpPg==">chrome</a>
// <a href="jav ascript:alert('XSS');">IE67chrome</a>
// <a href="jav	ascript:alert('XSS');">IE67chrome</a>
// <a href="jav
ascript:alert('XSS');">IE67chrome</a>
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
})
}
}
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, '<').
replace(/>/g, '>')
},
currency: function (amount, symbol, fractionSize) {
return (symbol || "\uFFE5") + numberFormat(amount, isFinite(fractionSize) ? fractionSize : 2)
},
number: function (number, fractionSize) {
return numberFormat(number, isFinite(fractionSize) ? fractionSize : 3)
}
}
/*
'yyyy': 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)
'yy': 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)
'y': 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)
'MMMM': Month in year (January-December)
'MMM': Month in year (Jan-Dec)
'MM': Month in year, padded (01-12)
'M': Month in year (1-12)
'dd': Day in month, padded (01-31)
'd': Day in month (1-31)
'EEEE': Day in Week,(Sunday-Saturday)
'EEE': Day in Week, (Sun-Sat)
'HH': Hour in day, padded (00-23)
'H': Hour in day (0-23)
'hh': Hour in am/pm, padded (01-12)
'h': Hour in am/pm, (1-12)
'mm': Minute in hour, padded (00-59)
'm': Minute in hour (0-59)
'ss': Second in minute, padded (00-59)
's': Second in minute (0-59)
'a': am/pm marker
'Z': 4 digit (+sign) representation of the timezone offset (-1200-+1200)
format string can also be one of the following predefined localizable formats:
'medium': equivalent to 'MMM d, y h:mm:ss a' for en_US locale (e.g. Sep 3, 2010 12:05:08 pm)
'short': equivalent to 'M/d/yy h:mm a' for en_US locale (e.g. 9/3/10 12:05 pm)
'fullDate': equivalent to 'EEEE, MMMM d,y' for en_US locale (e.g. Friday, September 3, 2010)
'longDate': equivalent to 'MMMM d, y' for en_US locale (e.g. September 3, 2010
'mediumDate': equivalent to 'MMM d, y' for en_US locale (e.g. Sep 3, 2010)
'shortDate': equivalent to 'M/d/yy' for en_US locale (e.g. 9/3/10)
'mediumTime': equivalent to 'h:mm:ss a' for en_US locale (e.g. 12:05:08 pm)
'shortTime': equivalent to 'h:mm a' for en_US locale (e.g. 12:05 pm)
*/
new function () {
function toInt(str) {
return parseInt(str, 10)
}
function padNumber(num, digits, trim) {
var neg = ""
if (num < 0) {
neg = '-'
num = -num
}
num = "" + num
while (num.length < digits)
num = "0" + num
if (trim)
num = num.substr(num.length - digits)
return neg + num
}
function dateGetter(name, size, offset, trim) {
return function (date) {
var value = date["get" + name]()
if (offset > 0 || value > -offset)
value += offset
if (value === 0 && offset === -12) {
value = 12
}
return padNumber(value, size, trim)
}
}
function dateStrGetter(name, shortForm) {
return function (date, formats) {
var value = date["get" + name]()
var get = (shortForm ? ("SHORT" + name) : name).toUpperCase()
return formats[get][value]
}
}
function timeZoneGetter(date) {
var zone = -1 * date.getTimezoneOffset()
var paddedZone = (zone >= 0) ? "+" : ""
paddedZone += padNumber(Math[zone > 0 ? "floor" : "ceil"](zone / 60), 2) + padNumber(Math.abs(zone % 60), 2)
return paddedZone
}
//取得上午下午
function ampmGetter(date, formats) {
return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1]
}
var DATE_FORMATS = {
yyyy: dateGetter("FullYear", 4),
yy: dateGetter("FullYear", 2, 0, true),
y: dateGetter("FullYear", 1),
MMMM: dateStrGetter("Month"),
MMM: dateStrGetter("Month", true),
MM: dateGetter("Month", 2, 1),
M: dateGetter("Month", 1, 1),
dd: dateGetter("Date", 2),
d: dateGetter("Date", 1),
HH: dateGetter("Hours", 2),
H: dateGetter("Hours", 1),
hh: dateGetter("Hours", 2, -12),
h: dateGetter("Hours", 1, -12),
mm: dateGetter("Minutes", 2),
m: dateGetter("Minutes", 1),
ss: dateGetter("Seconds", 2),
s: dateGetter("Seconds", 1),
sss: dateGetter("Milliseconds", 3),
EEEE: dateStrGetter("Day"),
EEE: dateStrGetter("Day", true),
a: ampmGetter,
Z: timeZoneGetter
}
var DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+|H+|h+|m+|s+|a|Z))(.*)/,
NUMBER_STRING = /^\d+$/
var riso8601 = /^(\d{4})-?(\d+)-?(\d+)(?:T(\d+)(?::?(\d+)(?::?(\d+)(?:\.(\d+))?)?)?(Z|([+-])(\d+):?(\d+))?)?$/
// 1 2 3 4 5 6 7 8 9 10 11
function jsonStringToDate(string) {
var match
if (match = string.match(riso8601)) {
var date = new Date(0),
tzHour = 0,
tzMin = 0,
dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,
timeSetter = match[8] ? date.setUTCHours : date.setHours
if (match[9]) {
tzHour = toInt(match[9] + match[10])
tzMin = toInt(match[9] + match[11])
}
dateSetter.call(date, toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]))
var h = toInt(match[4] || 0) - tzHour
var m = toInt(match[5] || 0) - tzMin
var s = toInt(match[6] || 0)
var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000)
timeSetter.call(date, h, m, s, ms)
return date
}
return string
}
var rfixYMD = /^(\d+)\D(\d+)\D(\d+)/
filters.date = function (date, format) {
var locate = filters.date.locate,
text = "",
parts = [],
fn, match
format = format || "mediumDate"
format = locate[format] || format
if (typeof date === "string") {
if (NUMBER_STRING.test(date)) {
date = toInt(date)
} else {
var trimDate = date.trim()
date = trimDate.replace(rfixYMD, function (a, b, c, d) {
var array = d.length === 4 ? [d, b, c] : [b, c, d]
return array.join("-")
})
date = jsonStringToDate(date)
}
date = new Date(date)
}
if (typeof date === "number") {
date = new Date(date)
}
if (avalon.type(date) !== "date") {
return
}
while (format) {
match = DATE_FORMATS_SPLIT.exec(format)
if (match) {
parts = parts.concat(match.slice(1))
format = parts.pop()
} else {
parts.push(format)
format = null
}
}
parts.forEach(function (value) {
fn = DATE_FORMATS[value]
text += fn ? fn(date, locate) : value.replace(/(^'|'$)/g, "").replace(/''/g, "'")
})
return text
}
var locate = {
AMPMS: {
0: "上午",
1: "下午"
},
DAY: {
0: "星期日",
1: "星期一",
2: "星期二",
3: "星期三",
4: "星期四",
5: "星期五",
6: "星期六"
},
MONTH: {
0: "1月",
1: "2月",
2: "3月",
3: "4月",
4: "5月",
5: "6月",
6: "7月",
7: "8月",
8: "9月",
9: "10月",
10: "11月",
11: "12月"
},
SHORTDAY: {
"0": "周日",
"1": "周一",
"2": "周二",
"3": "周三",
"4": "周四",
"5": "周五",
"6": "周六"
},
fullDate: "y年M月d日EEEE",
longDate: "y年M月d日",
medium: "yyyy-M-d 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
}
/*********************************************************************
* AMD加载器 *
**********************************************************************/
var modules = avalon.modules = {
"ready!": {
exports: avalon
},
"avalon": {
exports: avalon,
state: 2
}
}
new function () {
var loadings = [] //正在加载中的模块列表
var factorys = [] //储存需要绑定ID与factory对应关系的模块(标准浏览器下,先parse的script节点会先onload)
var basepath
function trimHashAndQuery(url) {
return (url || "").replace(/[?#].*/, "")
}
var cur = getCurrentScript(true) //求得当前avalon.js 所在的JS文件的路径
if (!cur) { //处理window safari的Error没有stack的问题
cur = avalon.slice(DOC.scripts).pop().src
}
var url = trimHashAndQuery(cur)
basepath = kernel.base = url.slice(0, url.lastIndexOf("/") + 1)
function getCurrentScript(base) {
// 参考 https://github.com/samyk/jiagra/blob/master/jiagra.js
var stack
try {
a.b.c() //强制报错,以便捕获e.stack
} catch (e) { //safari的错误对象只有line,sourceId,sourceURL
stack = e.stack
if (!stack && window.opera) {
//opera 9没有e.stack,但有e.Backtrace,但不能直接取得,需要对e对象转字符串进行抽取
stack = (String(e).match(/of linked script \S+/g) || []).join(" ")
}
}
if (stack) {
/**e.stack最后一行在所有支持的浏览器大致如下:
*chrome23:
* at http://113.93.50.63/data.js:4:1
*firefox17:
*@http://113.93.50.63/query.js:4
*opera12:http://www.oldapps.com/opera.php?system=Windows_XP
*@http://113.93.50.63/data.js:4
*IE10:
* at Global code (http://113.93.50.63/data.js:4:1)
* //firefox4+ 可以用document.currentScript
*/
stack = stack.split(/[@ ]/g).pop() //取得最后一行,最后一个空格或@之后的部分
stack = stack[0] === "(" ? stack.slice(1, -1) : stack.replace(/\s/, "") //去掉换行符
return stack.replace(/(:\d+)?:\d+$/i, "") //去掉行号与或许存在的出错字符起始位置
}
var nodes = (base ? DOC : head).getElementsByTagName("script") //只在head标签中寻找
for (var i = nodes.length, node; node = nodes[--i];) {
if ((base || node.className === subscribers) && node.readyState === "interactive") {
return node.className = node.src
}
}
}
innerRequire = avalon.require = function (array, factory, parent) {
if (!Array.isArray(array)) {
avalon.error("require的第一个参数必须是依赖列数,类型为数组 " + array)
}
var args = [] // 放置所有依赖项的完整路径
var deps = {} // args的另一种表现形式,为的是方便去重
var dn = 0 //需要安装的模块数
var cn = 0 // 已安装完的模块数
var id = parent || "callback" + setTimeout("1")
parent = parent || basepath
array.forEach(function (el) {
var url = loadResources(el, parent) //加载资源,并返回能加载资源的完整路径
if (url) {
dn++
if (modules[url] && modules[url].state === 2) {
cn++
}
if (!deps[url]) {
args.push(url)
deps[url] = "司徒正美" //去重
}
}
})
modules[id] = {//保存此模块的相关信息
id: id,
factory: factory,
deps: deps,
args: args,
state: 1
}
if (dn === cn) { //如果需要安装的等于已安装好的
fireFactory(id, args, factory) //安装到框架中
} else {
//放到检测列队中,等待checkDeps处理
loadings.unshift(id)
}
checkDeps()
}
innerRequire.define = function (urlOrId, deps, factory) { //模块名,依赖列表,模块本身
var args = aslice.call(arguments)
if (typeof urlOrId === "string") {
var id = args.shift()
}
if (typeof args[0] === "function") {
args.unshift([])
}
//上线合并后能直接得到模块ID,否则寻找当前正在解析中的script节点的src作为模块ID
//现在除了safari5,1-外,我们都能直接通过getCurrentScript一步到位得到当前执行的script节点,
//safari可通过onload+delay闭包组合解决
var url = modules[id] && modules[id].state >= 1 ? id : trimHashAndQuery(getCurrentScript())
if (!modules[url] && id) {
modules[url] = {
id: url,
factory: factory,
state: 1
}
}
factory = args[1]
factory.id = id //用于调试
factory.delay = function (d) {
args.push(d)
var isCycle = true
try {
isCycle = checkCycle(modules[d].deps, d)
} catch (e) {
}
if (isCycle) {
avalon.error(d + "模块与之前的模块存在循环依赖,请不要直接用script标签引入" + d + "模块")
}
delete factory.delay //释放内存
innerRequire.apply(null, args) //0,1,2 --> 1,2,0
}
if (url) {
factory.delay(url)
} else { //先进先出
factorys.push(factory)
}
}
innerRequire.define.amd = modules
function checkCycle(deps, nick) {
//检测是否存在循环依赖
for (var id in deps) {
if (deps[id] === "司徒正美" && modules[id].state !== 2 && (id === nick || checkCycle(modules[id].deps, nick))) {
return true
}
}
}
function checkDeps() {
//检测此JS模块的依赖是否都已安装完毕,是则安装自身
loop: for (var i = loadings.length, id; id = loadings[--i];) {
var obj = modules[id],
deps = obj.deps
for (var key in deps) {
if (ohasOwn.call(deps, key) && modules[key].state !== 2) {
continue loop
}
}
//如果deps是空对象或者其依赖的模块的状态都是2
if (obj.state !== 2) {
loadings.splice(i, 1) //必须先移除再安装,防止在IE下DOM树建完后手动刷新页面,会多次执行它
fireFactory(obj.id, obj.args, obj.factory)
checkDeps() //如果成功,则再执行一次,以防有些模块就差本模块没有安装好
}
}
}
function checkFail(node, onError, fuckIE) {
var id = trimHashAndQuery(node.src) //检测是否死链
node.onload = node.onreadystatechange = node.onerror = null
if (onError || (fuckIE && !modules[id].state)) {
setTimeout(function () {
head.removeChild(node)
node = null // 处理旧式IE下的循环引用问题
})
log("debug: 加载 " + id + " 失败" + onError + " " + (!modules[id].state))
} else {
return true
}
}
var rdeuce = /\/\w+\/\.\./
function loadResources(url, parent, ret, shim) {
//1. 特别处理mass|ready标识符
if (url === "ready!" || (modules[url] && modules[url].state === 2)) {
return url
}
//2. 处理text! css! 等资源
var plugin
url = url.replace(/^\w+!/, function (a) {
plugin = a.slice(0, -1)
return ""
})
plugin = plugin || "js"
plugin = plugins[plugin] || noop
//3. 转化为完整路径
if (typeof kernel.shim[url] === "object") {
shim = kernel.shim[url]
}
url = url.split('/');
//For each module name segment, see if there is a path
//registered for it. Start with most specific name
//and work up from it.
for (var i = url.length, parentModule, parentPath; i > 0; i -= 1) {
parentModule = url.slice(0, i).join('/');
parentPath = kernel.paths[parentModule];
if (parentPath) {
//If an array, it means there are a few choices,
//Choose the one that is desired
if (Array.isArray(parentPath)) {
parentPath = parentPath[0];
}
url.splice(0, i, parentPath);
break;
}
}
//Join the path parts together, then figure out if baseUrl is needed.
url = url.join('/');
//4. 补全路径
if (/^(\w+)(\d)?:.*/.test(url)) {
ret = url
} else {
parent = parent.substr(0, parent.lastIndexOf("/"))
var tmp = url.charAt(0)
if (tmp !== "." && tmp !== "/") { //相对于根路径
ret = basepath + url
} else if (url.slice(0, 2) === "./") { //相对于兄弟路径
ret = parent + url.slice(1)
} else if (url.slice(0, 2) === "..") { //相对于父路径
ret = parent + "/" + url
while (rdeuce.test(ret)) {
ret = ret.replace(rdeuce, "")
}
} else if (tmp === "/") {
ret = url //相对于根路径
} else {
avalon.error("不符合模块标识规则: " + url)
}
}
//5. 补全扩展名
url = trimHashAndQuery(ret)
var ext = plugin.ext
if (ext) {
if (url.slice(0 - ext.length) !== ext) {
ret += ext
}
}
//6. 缓存处理
if (kernel.nocache) {
ret += (ret.indexOf("?") === -1 ? "?" : "&") + (new Date - 0)
}
return plugin(ret, shim)
}
function loadJS(url, id, callback) {
//通过script节点加载目标模块
var node = DOC.createElement("script")
node.className = subscribers //让getCurrentScript只处理类名为subscribers的script节点
node[W3C ? "onload" : "onreadystatechange"] = function () {
if (W3C || /loaded|complete/i.test(node.readyState)) {
//mass Framework会在_checkFail把它上面的回调清掉,尽可能释放回存,尽管DOM0事件写法在IE6下GC无望
var factory = factorys.pop()
factory && factory.delay(id)
if (callback) {
callback()
}
if (checkFail(node, false, !W3C)) {
log("debug: 已成功加载 " + url)
}
}
}
node.onerror = function () {
checkFail(node, true)
}
node.src = url //插入到head的第一个节点前,防止IE6下head标签没闭合前使用appendChild抛错
head.insertBefore(node, head.firstChild) //chrome下第二个参数不能为null
log("debug: 正准备加载 " + url) //更重要的是IE6下可以收窄getCurrentScript的寻找范围
}
function fireFactory(id, deps, factory) {
for (var i = 0, array = [], d; d = deps[i++];) {
array.push(modules[d].exports)
}
var module = Object(modules[id]),
ret = factory.apply(window, array)
module.state = 2
if (ret !== void 0) {
modules[id].exports = ret
}
return ret
}
plugins.js = function (url, shim) {
var id = trimHashAndQuery(url)
if (!modules[id]) { //如果之前没有加载过
modules[id] = {
id: id,
exports: {}
}
if (shim) { //shim机制
innerRequire(shim.deps || "", function () {
loadJS(url, id, function () {
modules[id].state = 2
var s = shim.exports
if (s && modules[id].exports === void 0) {
modules[id].exports = typeof s === "function" ?
s() : window[s]
}
innerRequire.checkDeps()
})
})
} else {
loadJS(url, id)
}
}
return id
}
plugins.css = function (url) {
var id = trimHashAndQuery(url).replace(/\W/g, "_") ////用于处理掉href中的hash与所有特殊符号
if (!DOC.getElementById(id)) {
var node = DOC.createElement("link")
node.rel = "stylesheet"
node.href = url
node.id = id
head.insertBefore(node, head.firstChild)
}
}
plugins.css.ext = ".css"
plugins.js.ext = ".js"
plugins.text = function (url) {
var xhr = getXHR()
var id = trimHashAndQuery(url)
modules[id] = {}
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
var status = xhr.status;
if (status > 399 && status < 600) {
avalon.error(url + " 对应资源不存在或没有开启 CORS")
} else {
modules[id].state = 2
modules[id].exports = xhr.responseText
innerRequire.checkDeps()
}
}
}
xhr.open("GET", url, true)
if ("withCredentials" in xhr) {
xhr.withCredentials = true
}
xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest")
xhr.send()
return id
}
innerRequire.config = kernel
innerRequire.checkDeps = checkDeps
}
/*********************************************************************
* DOMReady *
**********************************************************************/
var readyList = []
function fireReady() {
if (innerRequire) {
modules["ready!"].state = 2
innerRequire.checkDeps()//隋性函数,防止IE9二次调用_checkDeps
} else {
readyList.forEach(function (a) {
a(avalon)
})
}
fireReady = noop //隋性函数,防止IE9二次调用_checkDeps
}
if (DOC.readyState === "complete") {
setTimeout(fireReady) //如果在domReady之外加载
} else {
DOC.addEventListener("DOMContentLoaded", fireReady)
window.addEventListener("load", fireReady)
}
avalon.ready = function (fn) {
if (innerRequire) {
innerRequire(["ready!"], fn)
} else if (fireReady === noop) {
fn(avalon)
} else {
readyList.push(fn)
}
}
avalon.config({
loader: true
})
avalon.ready(function () {
avalon.scan(DOC.body)
})
// Register as a named AMD module, since avalon can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase avalon is used because AMD module names are
// derived from file names, and Avalon is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of avalon, it will work.
// Note that for maximum portability, libraries that are not avalon should
// declare themselves as anonymous modules, and avoid setting a global if an
// AMD loader is present. avalon is a special case. For more information, see
// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
if (typeof define === "function" && define.amd) {
define("avalon", [], function () {
return avalon
})
}
// Map over avalon in case of overwrite
var _avalon = window.avalon
avalon.noConflict = function (deep) {
if (deep && window.avalon === avalon) {
window.avalon = avalon
}
return avalon
}
// Expose avalon and $ identifiers, even in AMD
// and CommonJS for browser emulators
if (noGlobal === void 0) {
window.avalon = avalon
}
return avalon
}));
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