js 完美兼容浏览器的复制功能

1，js结合swf的复制功能，完美兼容火狐，谷歌，360，ie8，使用示例：（ps：引入copy.swf比较重要，文件传送门 解压密码：http://www.bieanju.com/，为了防止360删除文件请解压后去除后缀的1）

function copyText(){        var clip = new ZeroClipboard.Client();
clip.setHandCursor(true);                //var text= document.getElementById('tgurl').value;
var text= $('input[name="tgurl"]').val();
clip.setText(text);
clip.glue("copyurl");
clip.addEventListener( "complete", function(){
alert("复制成功！");
});
}

2,下面是copy.js的源码：

var ZeroClipboard = {

version: "1.0.7",
clients: {}, // registered upload clients on page, indexed by id
moviePath: './js/copy.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    }

};