Ajax开发框架

/* Prototype JavaScript framework, version 1.6.0.2*/ var Prototype = { Version: '1.6.0.2', Browser: { IE: !!(window.attachEvent && !window.opera), Opera: !!window.opera, WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1, Gecko: navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1, MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/) }, BrowserFeatures: { XPath: !!document.evaluate, ElementExtensions: !!window.HTMLElement, SpecificElementExtensions: document.createElement('div').__proto__ && document.createElement('div').__proto__ !== document.createElement('form').__proto__ }, ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>', JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/, emptyFunction: function() { }, K: function(x) { return x } }; if (Prototype.Browser.MobileSafari) Prototype.BrowserFeatures.SpecificElementExtensions = false; /* Based on Alex Arnell's inheritance implementation. */ var Class = { create: function() { var parent = null, properties = $A(arguments); if (Object.isFunction(properties[0])) parent = properties.shift(); function klass() { this.initialize.apply(this, arguments); } Object.extend(klass, Class.Methods); klass.superclass = parent; klass.subclasses = []; if (parent) { var subclass = function() { }; subclass.prototype = parent.prototype; klass.prototype = new subclass; parent.subclasses.push(klass); } for (var i = 0; i < properties.length; i++) klass.addMethods(properties[i]); if (!klass.prototype.initialize) klass.prototype.initialize = Prototype.emptyFunction; klass.prototype.constructor = klass; return klass; } }; Class.Methods = { addMethods: function(source) { var ancestor = this.superclass && this.superclass.prototype; var properties = Object.keys(source); if (!Object.keys({ toString: true }).length) properties.push("toString", "valueOf"); for (var i = 0, length = properties.length; i < length; i++) { var property = properties[i], value = source[property]; if (ancestor && Object.isFunction(value) && value.argumentNames().first() == "$super") { var method = value, value = Object.extend((function(m) { return function() { return ancestor[m].apply(this, arguments) }; })(property).wrap(method), { valueOf: function() { return method }, toString: function() { return method.toString() } }); } this.prototype[property] = value; } return this; } }; var Abstract = { }; Object.extend = function(destination, source) { for (var property in source) destination[property] = source[property]; return destination; }; Object.extend(Object, { inspect: function(object) { try { if (Object.isUndefined(object)) return 'undefined'; if (object === null) return 'null'; return object.inspect ? object.inspect() : String(object); } catch (e) { if (e instanceof RangeError) return '...'; throw e; } }, toJSON: function(object) { var type = typeof object; switch (type) { case 'undefined': case 'function': case 'unknown': return; case 'boolean': return object.toString(); } if (object === null) return 'null'; if (object.toJSON) return object.toJSON(); if (Object.isElement(object)) return; var results = []; for (var property in object) { var value = Object.toJSON(object[property]); if (!Object.isUndefined(value)) results.push(property.toJSON() + ': ' + value); } return '{' + results.join(', ') + '}'; }, toQueryString: function(object) { return $H(object).toQueryString(); }, toHTML: function(object) { return object && object.toHTML ? object.toHTML() : String.interpret(object); }, keys: function(object) { var keys = []; for (var property in object) keys.push(property); return keys; }, values: function(object) { var values = []; for (var property in object) values.push(object[property]); return values; }, clone: function(object) { return Object.extend({ }, object); }, isElement: function(object) { return object && object.nodeType == 1; }, isArray: function(object) { return object != null && typeof object == "object" && 'splice' in object && 'join' in object; }, isHash: function(object) { return object instanceof Hash; }, isFunction: function(object) { return typeof object == "function"; }, isString: function(object) { return typeof object == "string"; }, isNumber: function(object) { return typeof object == "number"; }, isUndefined: function(object) { return typeof object == "undefined"; } }); Object.extend(Function.prototype, { argumentNames: function() { var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip"); return names.length == 1 && !names[0] ? [] : names; }, bind: function() { if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this; var __method = this, args = $A(arguments), object = args.shift(); return function() { return __method.apply(object, args.concat($A(arguments))); } }, bindAsEventListener: function() { var __method = this, args = $A(arguments), object = args.shift(); return function(event) { return __method.apply(object, [event || window.event].concat(args)); } }, curry: function() { if (!arguments.length) return this; var __method = this, args = $A(arguments); return function() { return __method.apply(this, args.concat($A(arguments))); } }, delay: function() { var __method = this, args = $A(arguments), timeout = args.shift() * 1000; return window.setTimeout(function() { return __method.apply(__method, args); }, timeout); }, wrap: function(wrapper) { var __method = this; return function() { return wrapper.apply(this, [__method.bind(this)].concat($A(arguments))); } }, methodize: function() { if (this._methodized) return this._methodized; var __method = this; return this._methodized = function() { return __method.apply(null, [this].concat($A(arguments))); }; } }); Function.prototype.defer = Function.prototype.delay.curry(0.01); Date.prototype.toJSON = function() { return '"' + this.getUTCFullYear() + '-' + (this.getUTCMonth() + 1).toPaddedString(2) + '-' + this.getUTCDate().toPaddedString(2) + 'T' + this.getUTCHours().toPaddedString(2) + ':' + this.getUTCMinutes().toPaddedString(2) + ':' + this.getUTCSeconds().toPaddedString(2) + 'Z"'; }; var Try = { these: function() { var returnValue; for (var i = 0, length = arguments.length; i < length; i++) { var lambda = arguments[i]; try { returnValue = lambda(); break; } catch (e) { } } return returnValue; } }; RegExp.prototype.match = RegExp.prototype.test; RegExp.escape = function(str) { return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1'); }; /*--------------------------------------------------------------------------*/ var PeriodicalExecuter = Class.create({ initialize: function(callback, frequency) { this.callback = callback; this.frequency = frequency; this.currentlyExecuting = false; this.registerCallback(); }, registerCallback: function() { this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000); }, execute: function() { this.callback(this); }, stop: function() { if (!this.timer) return; clearInterval(this.timer); this.timer = null; }, onTimerEvent: function() { if (!this.currentlyExecuting) { try { this.currentlyExecuting