js在不同浏览器中复制代码的实现

最近在写一个复制相关代码到剪贴板的功能！

 

如果只是IE浏览器的话，可以利用window.clipboardData这个对象，相关js代码：

 

 

window.clipboardData.clearData();
		var couponResult = window.clipboardData.setData("couponResult",
				couponResultHtml);
		if (couponResult) {
			alert("优惠券代码拷贝成功！");
		} else {
			alert("优惠券代码拷贝失败！");
		}

 

 

但这个对象是只针对IE的。。如果是其它的浏览器呢，则会用不了,这里提供两种相关功能的方法

1.

 

if (window.clipboardData) {
		window.clipboardData.clearData();
		var couponResult = window.clipboardData.setData("couponResult",
				couponResultHtml);
		if (couponResult) {
			alert("优惠券代码拷贝成功！");
		} else {
			alert("优惠券代码拷贝失败！");
		}
	} else if (navigator.userAgent.indexOf("Opera") != -1) {
		window.location = couponResultHtml;
	} else if (window.netscape) {
		try {
			netscape.security.PrivilegeManager
					.enablePrivilege("UniversalXPConnect");
		} catch (e) {
			alert("被浏览器拒绝！\n请在浏览器地址栏输入'about:config'并回车\n然后将'signed.applets.codebase_principal_support'设置为'true'");
		}
		var clip = Components.classes['@mozilla.org/widget/clipboard;1']
				.createInstance(Components.interfaces.nsIClipboard);
		if (!clip)
			return;
		var trans = Components.classes['@mozilla.org/widget/transferable;1']
				.createInstance(Components.interfaces.nsITransferable);
		if (!trans)
			return;
		trans.addDataFlavor('text/unicode');
		var str = new Object();
		var len = new Object();
		var str = Components.classes["@mozilla.org/supports-string;1"]
				.createInstance(Components.interfaces.nsISupportsString);
		var copytext = couponResultHtml;
		str.data = copytext;
		trans.setTransferData("text/unicode", str, copytext.length * 2);
		var clipid = Components.interfaces.nsIClipboard;
		if (!clip)
			return false;
		clip.setData(trans, null, clipid.kGlobalClipboard);
	}

 

 这个需要对浏览器进行设置，在浏览器栏中输入：about:config找到signed.applets.codebase_principal_supporty设置为true

 

 

2.得用flash的功能,现在网上有人写了一个ZeroClipboard.js,ZeroClipboard.swf

只要将这两文件作相关改动就行了：可以实现任意浏览器的复制，当然要浏览器支持flash插件才行！

ZeroClipboard.js相关代码：（此有经过改动），因为项目中有用到jquery,与其中的$操作符有功能上的冲突，所以改成了_(下划线)，

 

// Simple Set Clipboard System
// update 2011-04-20
// Author: Eric_wang  

var ZeroClipboard = {
	
	version: "1.0.6",
	clients: {}, // registered upload clients on page, indexed by id
	moviePath: rootStaticPath+'/js/activity/coupon/ZeroClipboard.swf', // URL to movie
	nextId: 1, // ID of next movie
	
	_: function(thingy) {
		// simple DOM lookup utility function
		if (typeof(thingy) == 'string') thingy = document.getElementById(thingy);
		if (!thingy.addClass) {
			// extend element with a few useful methods
			thingy.hide = function() { this.style.display = 'none'; };
			thingy.show = function() { this.style.display = ''; };
			thingy.addClass = function(name) { this.removeClass(name); this.className += ' ' + name; };
			thingy.removeClass = function(name) {
				var classes = this.className.split(/\s+/);
				var idx = -1;
				for (var k = 0; k < classes.length; k++) {
					if (classes[k] == name) { idx = k; k = classes.length; }
				}
				if (idx > -1) {
					classes.splice( idx, 1 );
					this.className = classes.join(' ');
				}
				return this;
			};
			thingy.hasClass = function(name) {
				return !!this.className.match( new RegExp("\\s*" + name + "\\s*") );
			};
		}
		return thingy;
	},
	
	setMoviePath: function(path) {
		// set path to ZeroClipboard.swf
		this.moviePath = path;
	},
	
	dispatch: function(id, eventName, args) {
		// receive event from flash movie, send to client		
		var client = this.clients[id];
		if (client) {
			client.receiveEvent(eventName, args);
		}
	},
	
	register: function(id, client) {
		// register new client to receive events
		this.clients[id] = client;
	},
	
	getDOMObjectPosition: function(obj, stopObj) {
		// get absolute coordinates for dom element
		var info = {
			left: 0, 
			top: 0, 
			width: obj.width ? obj.width : obj.offsetWidth, 
			height: obj.height ? obj.height : obj.offsetHeight
		};

		while (obj && (obj != stopObj)) {
			info.left += obj.offsetLeft;
			info.top += obj.offsetTop;
			obj = obj.offsetParent;
		}

		return info;
	},
	
	Client: function(elem) {
		// constructor for new simple upload client
		this.handlers = {};
		
		// unique ID
		this.id = ZeroClipboard.nextId++;
		this.movieId = 'ZeroClipboardMovie_' + this.id;
		
		// register client with singleton to receive flash events
		ZeroClipboard.register(this.id, this);
		
		// create movie
		if (elem) this.glue(elem);
	}
};

ZeroClipboard.Client.prototype = {
	
	id: 0, // unique ID for us
	ready: false, // whether movie is ready to receive events or not
	movie: null, // reference to movie object
	clipText: '', // text to copy to clipboard
	handCursorEnabled: true, // whether to show hand cursor, or default pointer cursor
	cssEffects: true, // enable CSS mouse effects on dom container
	handlers: null, // user event handlers
	
	glue: function(elem, appendElem, stylesToAdd) {
		// glue to DOM element
		// elem can be ID or actual DOM element object
		this.domElement = ZeroClipboard._(elem);
		
		// float just above object, or zIndex 99 if dom element isn't set
		var zIndex = 99;
		if (this.domElement.style.zIndex) {
			zIndex = parseInt(this.domElement.style.zIndex, 10) + 1;
		}
		
		if (typeof(appendElem) == 'string') {
			appendElem = ZeroClipboard._(appendElem);
		}
		else if (typeof(appendElem) == 'undefined') {
			appendElem = document.getElementsByTagName('body')[0];
		}
		
		// find X/Y position of domElement
		var box = ZeroClipboard.getDOMObjectPosition(this.domElement, appendElem);
		
		// create floating DIV above element
		this.div = document.createElement('div');
		var style = this.div.style;
		style.position = 'absolute';
		style.left = '' + box.left + 'px';
		style.top = '' + box.top + 'px';
		style.width = '' + box.width + 'px';
		style.height = '' + box.height + 'px';
		style.zIndex = zIndex;
		
		if (typeof(stylesToAdd) == 'object') {
			for (addedStyle in stylesToAdd) {
				style[addedStyle] = stylesToAdd[addedStyle];
			}
		}
		
		// style.backgroundColor = '#f00'; // debug
		
		appendElem.appendChild(this.div);
		
		this.div.innerHTML = this.getHTML( box.width, box.height );
	},
	
	getHTML: function(width, height) {
		// return HTML for movie
		var html = '';
		var flashvars = 'id=' + this.id + 
			'&width=' + width + 
			'&height=' + height;
			
		if (navigator.userAgent.match(/MSIE/)) {
			// IE gets an OBJECT tag
			var protocol = location.href.match(/^https/i) ? 'https://' : 'http://';
			html += '<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="'+protocol+'download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" width="'+width+'" height="'+height+'" id="'+this.movieId+'" align="middle"><param name="allowScriptAccess" value="always" /><param name="allowFullScreen" value="false" /><param name="movie" value="'+ZeroClipboard.moviePath+'" /><param name="loop" value="false" /><param name="menu" value="false" /><param name="quality" value="best" /><param name="bgcolor" value="#ffffff" /><param name="flashvars" value="'+flashvars+'"/><param name="wmode" value="transparent"/></object>';
		}
		else {
			// all other browsers get an EMBED tag
			html += '<embed id="'+this.movieId+'" src="'+ZeroClipboard.moviePath+'" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="'+width+'" height="'+height+'" name="'+this.movieId+'" align="middle" allowScriptAccess="always" allowFullScreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="'+flashvars+'" wmode="transparent" />';
		}
		return html;
	},
	
	hide: function() {
		// temporarily hide floater offscreen
		if (this.div) {
			this.div.style.left = '-2000px';
		}
	},
	
	show: function() {
		// show ourselves after a call to hide()
		this.reposition();
	},
	
	destroy: function() {
		// destroy control and floater
		if (this.domElement && this.div) {
			this.hide();
			this.div.innerHTML = '';
			
			var body = document.getElementsByTagName('body')[0];
			try { body.removeChild( this.div ); } catch(e) {;}
			
			this.domElement = null;
			this.div = null;
		}
	},
	
	reposition: function(elem) {
		// reposition our floating div, optionally to new container
		// warning: container CANNOT change size, only position
		if (elem) {
			this.domElement = ZeroClipboard._(elem);
			if (!this.domElement) this.hide();
		}
		
		if (this.domElement && this.div) {
			var box = ZeroClipboard.getDOMObjectPosition(this.domElement);
			var style = this.div.style;
			style.left = '' + box.left + 'px';
			style.top = '' + box.top + 'px';
		}
	},
	
	setText: function(newText) {
		// set text to be copied to clipboard
		this.clipText = newText;
		if (this.ready) this.movie.setText(newText);
	},
	
	addEventListener: function(eventName, func) {
		// add user event listener for event
		// event types: load, queueStart, fileStart, fileComplete, queueComplete, progress, error, cancel
		eventName = eventName.toString().toLowerCase().replace(/^on/, '');
		if (!this.handlers[eventName]) this.handlers[eventName] = [];
		this.handlers[eventName].push(func);
	},
	
	setHandCursor: function(enabled) {
		// enable hand cursor (true), or default arrow cursor (false)
		this.handCursorEnabled = enabled;
		if (this.ready) this.movie.setHandCursor(enabled);
	},
	
	setCSSEffects: function(enabled) {
		// enable or disable CSS effects on DOM container
		this.cssEffects = !!enabled;
	},
	
	receiveEvent: function(eventName, args) {
		// receive event from flash
		eventName = eventName.toString().toLowerCase().replace(/^on/, '');
				
		// special behavior for certain events
		switch (eventName) {
			case 'load':
				// movie claims it is ready, but in IE this isn't always the case...
				// bug fix: Cannot extend EMBED DOM elements in Firefox, must use traditional function
				this.movie = document.getElementById(this.movieId);
				if (!this.movie) {
					var self = this;
					setTimeout( function() { self.receiveEvent('load', null); }, 1 );
					return;
				}
				
				// firefox on pc needs a "kick" in order to set these in certain cases
				if (!this.ready && navigator.userAgent.match(/Firefox/) && navigator.userAgent.match(/Windows/)) {
					var self = this;
					setTimeout( function() { self.receiveEvent('load', null); }, 100 );
					this.ready = true;
					return;
				}
				
				this.ready = true;
				this.movie.setText( this.clipText );
				this.movie.setHandCursor( this.handCursorEnabled );
				break;
			
			case 'mouseover':
				if (this.domElement && this.cssEffects) {
					this.domElement.addClass('hover');
					if (this.recoverActive) this.domElement.addClass('active');
				}
				break;
			
			case 'mouseout':
				if (this.domElement && this.cssEffects) {
					this.recoverActive = false;
					if (this.domElement.hasClass('active')) {
						this.domElement.removeClass('active');
						this.recoverActive = true;
					}
					this.domElement.removeClass('hover');
				}
				break;
			
			case 'mousedown':
				if (this.domElement && this.cssEffects) {
					this.domElement.addClass('active');
				}
				break;
			
			case 'mouseup':
				if (this.domElement && this.cssEffects) {
					this.domElement.removeClass('active');
					this.recoverActive = false;
				}
				break;
		} // switch eventName
		
		if (this.handlers[eventName]) {
			for (var idx = 0, len = this.handlers[eventName].length; idx < len; idx++) {
				var func = this.handlers[eventName][idx];
			
				if (typeof(func) == 'function') {
					// actual function reference
					func(this, args);
				}
				else if ((typeof(func) == 'object') && (func.length == 2)) {
					// PHP style object + method, i.e. [myObject, 'myMethod']
					func[0][ func[1] ](this, args);
				}
				else if (typeof(func) == 'string') {
					// name of function
					window[func](this, args);
				}
			} // foreach event handler defined
		} // user defined handler for event
	}
	
};

 

 

页面   相关

 

<div id="d_clip_button$j" class="my_clip_button"  style="padding-left:30px;float:right;padding-top:5px;"><a href="javascript:void(0)" onclick="copyCoupon('$j')" style="color:#7E9AD2;font-weight:bold;">拷贝此优惠券代码进行推广</a></div>

 

 

页面调用JS

 

 

 

var clip = null;
function _(id) { return document.getElementById(id); }

function init(id) {
	//alert(""+id);
	clip = new ZeroClipboard.Client();
	clip.setHandCursor(true);
	clip.addEventListener('load', function(){alert("flash加载完毕")});
	clip.addEventListener('mouseDown', function(client){
		var couponResultHtml = "<link rel=\"stylesheet\" href=\"" + rootStaticPath
		+ "/css/shop/supplier/public.css\"/>";
		var clipCouponHTML=$("#couponResult"+id).html();
		//alert(couponResultHtml+clipCouponHTML);
		try{
			clip.setText(couponResultHtml+clipCouponHTML);
		}catch(e){
			alert("优惠券代码拷贝失败！");
		}		
	});
	clip.addEventListener('complete', function(){alert("优惠券代码拷贝成功！");}

	//flash容器ID
	clip.glue( 'd_clip_button'+id );
	
}

function my_mouse_over(client) {
	//将内容放入到剪贴板中
	clip.setText( $("#couponResult0").html());
}

 

上传原文件如下：

 

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