JavaScript 面向对像编程

/* * This file has been commented to support Visual Studio Intellisense. * You should not use this file at runtime inside the browser--it is only * intended to be used only for design-time IntelliSense. Please use the * standard jQuery library for all production use. * * Comment version: 1.2.6a */ (function(){ /* * jQuery 1.2.6 - New Wave Javascript * * Copyright (c) 2008 John Resig, http://jquery.com/ * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * $Date: 2008-05-24 14:22:17 -0400 (Sat, 24 May 2008) $ * $Rev: 5685 $ */ // Map over jQuery in case of overwrite var _jQuery = window.jQuery, // Map over the $ in case of overwrite _$ = window.$; var jQuery = window.jQuery = window.$ = function( selector, context ) { /// <summary> /// 1: $(expression, context) - This function accepts a string containing a CSS selector which is then used to match a set of elements. /// 2: $(html) - Create DOM elements on-the-fly from the provided String of raw HTML. /// 3: $(elements) - Wrap jQuery functionality around a single or multiple DOM Element(s). /// 4: $(callback) - A shorthand for $(document).ready(). /// </summary> /// <param name="selector" type="String"> /// 1: expression - An expression to search with. /// 2: html - A string of HTML to create on the fly. /// 3: elements - DOM element(s) to be encapsulated by a jQuery object. /// 4: callback - The function to execute when the DOM is ready. /// </param> /// <param name="context" type="jQuery"> /// 1: context - A DOM Element, Document or jQuery to use as context. /// </param> /// <returns type="jQuery" /> // The jQuery object is actually just the init constructor 'enhanced' return new jQuery.fn.init( selector, context ); }; // A simple way to check for HTML strings or ID strings // (both of which we optimize for) var quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#(\w+)$/, // Is it a simple selector isSimple = /^.[^:#\[\.]*$/, // Will speed up references to undefined, and allows munging its name. undefined; jQuery.fn = jQuery.prototype = { init: function( selector, context ) { /// <summary> /// 1: $(expression, context) - This function accepts a string containing a CSS selector which is then used to match a set of elements. /// 2: $(html) - Create DOM elements on-the-fly from the provided String of raw HTML. /// 3: $(elements) - Wrap jQuery functionality around a single or multiple DOM Element(s). /// 4: $(callback) - A shorthand for $(document).ready(). /// </summary> /// <param name="selector" type="String"> /// 1: expression - An expression to search with. /// 2: html - A string of HTML to create on the fly. /// 3: elements - DOM element(s) to be encapsulated by a jQuery object. /// 4: callback - The function to execute when the DOM is ready. /// </param> /// <param name="context" type="jQuery"> /// 1: context - A DOM Element, Document or jQuery to use as context. /// </param> /// <returns type="jQuery" /> // Make sure that a selection was provided selector = selector || document; // Handle $(DOMElement) if ( selector.nodeType ) { this[0] = selector; this.length = 1; return this; } // Handle HTML strings if ( typeof selector == "string" ) { // Are we dealing with HTML string or an ID? var match = quickExpr.exec( selector ); // Verify a match, and that no context was specified for #id if ( match && (match[1] || !context) ) { // HANDLE: $(html) -> $(array) if ( match[1] ) selector = jQuery.clean( [ match[1] ], context ); // HANDLE: $("#id") else { var elem = document.getElementById( match[3] ); // Make sure an element was located if ( elem ){ // Handle the case where IE and Opera return items // by name instead of ID if ( elem.id != match[3] ) return jQuery().find( selector ); // Otherwise, we inject the element directly into the jQuery object return jQuery( elem ); } selector = []; } // HANDLE: $(expr, [context]) // (which is just equivalent to: $(content).find(expr) } else return jQuery( context ).find( selector ); // HANDLE: $(function) // Shortcut for document ready } else if ( jQuery.isFunction( selector ) ) return jQuery( document )[ jQuery.fn.ready ? "ready" : "load" ]( selector ); return this.setArray(jQuery.makeArray(selector)); }, // The current version of jQuery being used jquery: "1.2.6", // The number of elements contained in the matched element set size: function() { /// <summary> /// The number of elements currently matched. /// Part of Core /// </summary> /// <returns type="Number" /> return this.length; }, // The number of elements contained in the matched element set length: 0, // Get the Nth element in the matched element set OR // Get the whole matched element set as a clean array get: function( num ) { /// <summary> /// Access a single matched element. num is used to access the /// Nth element matched. /// Part of Core /// </summary> /// <returns type="Element" /> /// <param name="num" type="Number"> /// Access the element in the Nth position. /// </param> return num == undefined ? // Return a 'clean' array jQuery.makeArray( this ) : // Return just the object this[ num ]; }, // Take an array of elements and push it onto the stack // (returning the new matched element set) pushStack: function( elems ) { /// <summary> /// Set the jQuery object to an array of elements, while maintaining /// the stack. /// Part of Core /// </summary> /// <returns type="jQuery" /> /// <param name="elems" type="Elements"> /// An array of elements /// </param> // Build a new jQuery matched element set var ret = jQuery( elems ); // Add the old object onto the stack (as a reference) ret.prevObject = this; // Return the newly-formed element set return ret; }, // Force the current matched set of elements to become // the specified array of elements (destroying the stack in the process) // You should use pushStack() in order to do this, but maintain the stack setArray: function( elems ) { /// <summary> /// Set the jQuery object to an array of elements. This operation is /// completely destructive - be sure to use .pushStack() if you wish to maintain /// the jQuery stack. /// Part of Core /// </summary> /// <returns type="jQuery" /> /// <param name="elems" type="Elements"> /// An array of elements /// </param> // Resetting the length to 0, then using the native Array push // is a super-fast way to populate an object with array-like properties this.length = 0; Array.prototype.push.apply( this, el