增加淘宝群内容，修改部分文件组织

数据结构(双语)/数据结构 day16【瑞客论坛 www.ruike1.com】/Visualization/AnimationLibrary/CustomEvents.js

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+// Copyright 2011 David Galles, University of San Francisco. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+// conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+// of conditions and the following disclaimer in the documentation and/or other materials
+// provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``AS IS'' AND ANY EXPRESS OR IMPLIED
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// The views and conclusions contained in the software and documentation are those of the
+// authors and should not be interpreted as representing official policies, either expressed
+// or implied, of the University of San Francisco
+
+
+Function.prototype.bind = function() {
+	var _function = this;
+	
+	var args = Array.prototype.slice.call(arguments);
+	var scope = args.shift()
+	return function() {
+		for (var i = 0; i < arguments.length; i++)
+		{
+			args.push(arguments[i]);
+		}
+		return _function.apply(scope, args);
+	}
+}
+
+function EventListener()
+{
+	this.events = [];
+}
+
+
+EventListener.prototype.removeListener = function(kind, scope, func)
+{
+	if (this.events[kind] == undefined)
+	{
+		return;
+	}
+	var scopeFunctions = null;
+	var i;
+	for (i = 0; i < this.events[kind].length; i++)
+	{
+		if (this.events[kind][i].scope == scope)
+		{
+			scopeFunctions = this.events[kind][i];
+			break;
+		}	
+	}
+	if (scopeFunctions == null)
+	{
+		return;
+	}
+	for (i = 0; i < scopeFunctions.functions.length; i++)
+	{
+		if (scopeFunctions.functions[i] == func)
+		{
+			scopeFunctions.functions.splice(i,1);
+			return;
+		}
+	}
+}
+
+
+EventListener.prototype.addListener = function(kind, scope, func)
+{
+	if (this.events[kind] === undefined)
+	{
+		this.events[kind] = [];
+	}
+	var i;
+	var scopeFunctions = null;
+	for (i = 0; i < this.events[kind].length; i++)
+	{
+		if (this.events[kind][i].scope == scope)
+		{
+			scopeFunctions = this.events[kind][i];
+			break;
+		}
+	}
+	if (scopeFunctions === null)
+	{
+		this.events[kind].push({scope:scope, functions:[] });
+		scopeFunctions = this.events[kind][this.events[kind].length - 1];
+	}
+	for (i = 0; i < scopeFunctions.functions.length; i++)
+	{
+		if (scopeFunctions.functions[i] == func)
+		{
+			return;
+		}
+	}
+	scopeFunctions.functions.push(func);
+}
+
+EventListener.prototype.fireEvent = function(kind, event)
+{
+	// TODO:  Should add a deep clone here ...
+	if (this.events[kind] !== undefined)
+	{
+		for (var i = 0; i < this.events[kind].length; i++)
+		{
+			var objects = this.events[kind][i];
+			var functs = objects.functions;
+			var scope = objects.scope
+			for (var j = 0; j <functs.length; j++)
+			{
+				var func = functs[j];
+				func.call(scope,event);
+			}
+		}
+	}
+
+}
+
+
+/*
+function Source()
+{
+	
+}
+
+Source.prototype = new EventListener();
+Source.prototype.constructor = Source;
+Source.prototype.testFire = function()
+{
+	this.fireEvent("test","testcontents");
+	this.fireEvent("test2","test2contents");
+}
+
+
+
+function Client(eventSource)
+{
+		
+	this.first = function(blah)
+	{
+		alert("first:" + blah);
+	}
+	
+	this.second = function(blah)
+	{
+		alert("second:" + blah);
+	}
+	eventSource.addListener("test", this, this.first);
+	eventSource.addListener("test", this, this.first);
+	eventSource.addListener("test", this, this.second);
+	eventSource.removeListener("test", this, this.first);
+	
+							
+}
+							
+							
+function init()
+{
+	var src = new Source;
+	var c = new Client(src);
+	src.testFire();
+}
+							
+*/
+