Chris@16: // Simple Set Clipboard System
Chris@16: // Author: Joseph Huckaby
Chris@16: 
Chris@16: var ZeroClipboard = {
Chris@16: 	
Chris@16: 	version: "1.0.7",
Chris@16: 	clients: {}, // registered upload clients on page, indexed by id
Chris@16: 	moviePath: 'ZeroClipboard.swf', // URL to movie
Chris@16: 	nextId: 1, // ID of next movie
Chris@16: 	
Chris@16: 	$: function(thingy) {
Chris@16: 		// simple DOM lookup utility function
Chris@16: 		if (typeof(thingy) == 'string') thingy = document.getElementById(thingy);
Chris@16: 		if (!thingy.addClass) {
Chris@16: 			// extend element with a few useful methods
Chris@16: 			thingy.hide = function() { this.style.display = 'none'; };
Chris@16: 			thingy.show = function() { this.style.display = ''; };
Chris@16: 			thingy.addClass = function(name) { this.removeClass(name); this.className += ' ' + name; };
Chris@16: 			thingy.removeClass = function(name) {
Chris@16: 				var classes = this.className.split(/\s+/);
Chris@16: 				var idx = -1;
Chris@16: 				for (var k = 0; k < classes.length; k++) {
Chris@16: 					if (classes[k] == name) { idx = k; k = classes.length; }
Chris@16: 				}
Chris@16: 				if (idx > -1) {
Chris@16: 					classes.splice( idx, 1 );
Chris@16: 					this.className = classes.join(' ');
Chris@16: 				}
Chris@16: 				return this;
Chris@16: 			};
Chris@16: 			thingy.hasClass = function(name) {
Chris@16: 				return !!this.className.match( new RegExp("\\s*" + name + "\\s*") );
Chris@16: 			};
Chris@16: 		}
Chris@16: 		return thingy;
Chris@16: 	},
Chris@16: 	
Chris@16: 	setMoviePath: function(path) {
Chris@16: 		// set path to ZeroClipboard.swf
Chris@16: 		this.moviePath = path;
Chris@16: 	},
Chris@16: 	
Chris@16: 	dispatch: function(id, eventName, args) {
Chris@16: 		// receive event from flash movie, send to client		
Chris@16: 		var client = this.clients[id];
Chris@16: 		if (client) {
Chris@16: 			client.receiveEvent(eventName, args);
Chris@16: 		}
Chris@16: 	},
Chris@16: 	
Chris@16: 	register: function(id, client) {
Chris@16: 		// register new client to receive events
Chris@16: 		this.clients[id] = client;
Chris@16: 	},
Chris@16: 	
Chris@16: 	getDOMObjectPosition: function(obj, stopObj) {
Chris@16: 		// get absolute coordinates for dom element
Chris@16: 		var info = {
Chris@16: 			left: 0, 
Chris@16: 			top: 0, 
Chris@16: 			width: obj.width ? obj.width : obj.offsetWidth, 
Chris@16: 			height: obj.height ? obj.height : obj.offsetHeight
Chris@16: 		};
Chris@16: 
Chris@16: 		while (obj && (obj != stopObj)) {
Chris@16: 			info.left += obj.offsetLeft;
Chris@16: 			info.top += obj.offsetTop;
Chris@16: 			obj = obj.offsetParent;
Chris@16: 		}
Chris@16: 
Chris@16: 		return info;
Chris@16: 	},
Chris@16: 	
Chris@16: 	Client: function(elem) {
Chris@16: 		// constructor for new simple upload client
Chris@16: 		this.handlers = {};
Chris@16: 		
Chris@16: 		// unique ID
Chris@16: 		this.id = ZeroClipboard.nextId++;
Chris@16: 		this.movieId = 'ZeroClipboardMovie_' + this.id;
Chris@16: 		
Chris@16: 		// register client with singleton to receive flash events
Chris@16: 		ZeroClipboard.register(this.id, this);
Chris@16: 		
Chris@16: 		// create movie
Chris@16: 		if (elem) this.glue(elem);
Chris@16: 	}
Chris@16: };
Chris@16: 
Chris@16: ZeroClipboard.Client.prototype = {
Chris@16: 	
Chris@16: 	id: 0, // unique ID for us
Chris@16: 	ready: false, // whether movie is ready to receive events or not
Chris@16: 	movie: null, // reference to movie object
Chris@16: 	clipText: '', // text to copy to clipboard
Chris@16: 	handCursorEnabled: true, // whether to show hand cursor, or default pointer cursor
Chris@16: 	cssEffects: true, // enable CSS mouse effects on dom container
Chris@16: 	handlers: null, // user event handlers
Chris@16: 	
Chris@16: 	glue: function(elem, appendElem, stylesToAdd) {
Chris@16: 		// glue to DOM element
Chris@16: 		// elem can be ID or actual DOM element object
Chris@16: 		this.domElement = ZeroClipboard.$(elem);
Chris@16: 		
Chris@16: 		// float just above object, or zIndex 99 if dom element isn't set
Chris@16: 		var zIndex = 99;
Chris@16: 		if (this.domElement.style.zIndex) {
Chris@16: 			zIndex = parseInt(this.domElement.style.zIndex, 10) + 1;
Chris@16: 		}
Chris@16: 		
Chris@16: 		if (typeof(appendElem) == 'string') {
Chris@16: 			appendElem = ZeroClipboard.$(appendElem);
Chris@16: 		}
Chris@16: 		else if (typeof(appendElem) == 'undefined') {
Chris@16: 			appendElem = document.getElementsByTagName('body')[0];
Chris@16: 		}
Chris@16: 		
Chris@16: 		// find X/Y position of domElement
Chris@16: 		var box = ZeroClipboard.getDOMObjectPosition(this.domElement, appendElem);
Chris@16: 		
Chris@16: 		// create floating DIV above element
Chris@16: 		this.div = document.createElement('div');
Chris@16: 		var style = this.div.style;
Chris@16: 		style.position = 'absolute';
Chris@16: 		style.left = '' + box.left + 'px';
Chris@16: 		style.top = '' + box.top + 'px';
Chris@16: 		style.width = '' + box.width + 'px';
Chris@16: 		style.height = '' + box.height + 'px';
Chris@16: 		style.zIndex = zIndex;
Chris@16: 		
Chris@16: 		if (typeof(stylesToAdd) == 'object') {
Chris@16: 			for (addedStyle in stylesToAdd) {
Chris@16: 				style[addedStyle] = stylesToAdd[addedStyle];
Chris@16: 			}
Chris@16: 		}
Chris@16: 		
Chris@16: 		// style.backgroundColor = '#f00'; // debug
Chris@16: 		
Chris@16: 		appendElem.appendChild(this.div);
Chris@16: 		
Chris@16: 		this.div.innerHTML = this.getHTML( box.width, box.height );
Chris@16: 	},
Chris@16: 	
Chris@16: 	getHTML: function(width, height) {
Chris@16: 		// return HTML for movie
Chris@16: 		var html = '';
Chris@16: 		var flashvars = 'id=' + this.id + 
Chris@16: 			'&width=' + width + 
Chris@16: 			'&height=' + height;
Chris@16: 			
Chris@16: 		if (navigator.userAgent.match(/MSIE/)) {
Chris@16: 			// IE gets an OBJECT tag
Chris@16: 			var protocol = location.href.match(/^https/i) ? 'https://' : 'http://';
Chris@16: 			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>';
Chris@16: 		}
Chris@16: 		else {
Chris@16: 			// all other browsers get an EMBED tag
Chris@16: 			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" />';
Chris@16: 		}
Chris@16: 		return html;
Chris@16: 	},
Chris@16: 	
Chris@16: 	hide: function() {
Chris@16: 		// temporarily hide floater offscreen
Chris@16: 		if (this.div) {
Chris@16: 			this.div.style.left = '-2000px';
Chris@16: 		}
Chris@16: 	},
Chris@16: 	
Chris@16: 	show: function() {
Chris@16: 		// show ourselves after a call to hide()
Chris@16: 		this.reposition();
Chris@16: 	},
Chris@16: 	
Chris@16: 	destroy: function() {
Chris@16: 		// destroy control and floater
Chris@16: 		if (this.domElement && this.div) {
Chris@16: 			this.hide();
Chris@16: 			this.div.innerHTML = '';
Chris@16: 			
Chris@16: 			var body = document.getElementsByTagName('body')[0];
Chris@16: 			try { body.removeChild( this.div ); } catch(e) {;}
Chris@16: 			
Chris@16: 			this.domElement = null;
Chris@16: 			this.div = null;
Chris@16: 		}
Chris@16: 	},
Chris@16: 	
Chris@16: 	reposition: function(elem) {
Chris@16: 		// reposition our floating div, optionally to new container
Chris@16: 		// warning: container CANNOT change size, only position
Chris@16: 		if (elem) {
Chris@16: 			this.domElement = ZeroClipboard.$(elem);
Chris@16: 			if (!this.domElement) this.hide();
Chris@16: 		}
Chris@16: 		
Chris@16: 		if (this.domElement && this.div) {
Chris@16: 			var box = ZeroClipboard.getDOMObjectPosition(this.domElement);
Chris@16: 			var style = this.div.style;
Chris@16: 			style.left = '' + box.left + 'px';
Chris@16: 			style.top = '' + box.top + 'px';
Chris@16: 		}
Chris@16: 	},
Chris@16: 	
Chris@16: 	setText: function(newText) {
Chris@16: 		// set text to be copied to clipboard
Chris@16: 		this.clipText = newText;
Chris@16: 		if (this.ready) this.movie.setText(newText);
Chris@16: 	},
Chris@16: 	
Chris@16: 	addEventListener: function(eventName, func) {
Chris@16: 		// add user event listener for event
Chris@16: 		// event types: load, queueStart, fileStart, fileComplete, queueComplete, progress, error, cancel
Chris@16: 		eventName = eventName.toString().toLowerCase().replace(/^on/, '');
Chris@16: 		if (!this.handlers[eventName]) this.handlers[eventName] = [];
Chris@16: 		this.handlers[eventName].push(func);
Chris@16: 	},
Chris@16: 	
Chris@16: 	setHandCursor: function(enabled) {
Chris@16: 		// enable hand cursor (true), or default arrow cursor (false)
Chris@16: 		this.handCursorEnabled = enabled;
Chris@16: 		if (this.ready) this.movie.setHandCursor(enabled);
Chris@16: 	},
Chris@16: 	
Chris@16: 	setCSSEffects: function(enabled) {
Chris@16: 		// enable or disable CSS effects on DOM container
Chris@16: 		this.cssEffects = !!enabled;
Chris@16: 	},
Chris@16: 	
Chris@16: 	receiveEvent: function(eventName, args) {
Chris@16: 		// receive event from flash
Chris@16: 		eventName = eventName.toString().toLowerCase().replace(/^on/, '');
Chris@16: 				
Chris@16: 		// special behavior for certain events
Chris@16: 		switch (eventName) {
Chris@16: 			case 'load':
Chris@16: 				// movie claims it is ready, but in IE this isn't always the case...
Chris@16: 				// bug fix: Cannot extend EMBED DOM elements in Firefox, must use traditional function
Chris@16: 				this.movie = document.getElementById(this.movieId);
Chris@16: 				if (!this.movie) {
Chris@16: 					var self = this;
Chris@16: 					setTimeout( function() { self.receiveEvent('load', null); }, 1 );
Chris@16: 					return;
Chris@16: 				}
Chris@16: 				
Chris@16: 				// firefox on pc needs a "kick" in order to set these in certain cases
Chris@16: 				if (!this.ready && navigator.userAgent.match(/Firefox/) && navigator.userAgent.match(/Windows/)) {
Chris@16: 					var self = this;
Chris@16: 					setTimeout( function() { self.receiveEvent('load', null); }, 100 );
Chris@16: 					this.ready = true;
Chris@16: 					return;
Chris@16: 				}
Chris@16: 				
Chris@16: 				this.ready = true;
Chris@16: 				this.movie.setText( this.clipText );
Chris@16: 				this.movie.setHandCursor( this.handCursorEnabled );
Chris@16: 				break;
Chris@16: 			
Chris@16: 			case 'mouseover':
Chris@16: 				if (this.domElement && this.cssEffects) {
Chris@16: 					this.domElement.addClass('hover');
Chris@16: 					if (this.recoverActive) this.domElement.addClass('active');
Chris@16: 				}
Chris@16: 				break;
Chris@16: 			
Chris@16: 			case 'mouseout':
Chris@16: 				if (this.domElement && this.cssEffects) {
Chris@16: 					this.recoverActive = false;
Chris@16: 					if (this.domElement.hasClass('active')) {
Chris@16: 						this.domElement.removeClass('active');
Chris@16: 						this.recoverActive = true;
Chris@16: 					}
Chris@16: 					this.domElement.removeClass('hover');
Chris@16: 				}
Chris@16: 				break;
Chris@16: 			
Chris@16: 			case 'mousedown':
Chris@16: 				if (this.domElement && this.cssEffects) {
Chris@16: 					this.domElement.addClass('active');
Chris@16: 				}
Chris@16: 				break;
Chris@16: 			
Chris@16: 			case 'mouseup':
Chris@16: 				if (this.domElement && this.cssEffects) {
Chris@16: 					this.domElement.removeClass('active');
Chris@16: 					this.recoverActive = false;
Chris@16: 				}
Chris@16: 				break;
Chris@16: 		} // switch eventName
Chris@16: 		
Chris@16: 		if (this.handlers[eventName]) {
Chris@16: 			for (var idx = 0, len = this.handlers[eventName].length; idx < len; idx++) {
Chris@16: 				var func = this.handlers[eventName][idx];
Chris@16: 			
Chris@16: 				if (typeof(func) == 'function') {
Chris@16: 					// actual function reference
Chris@16: 					func(this, args);
Chris@16: 				}
Chris@16: 				else if ((typeof(func) == 'object') && (func.length == 2)) {
Chris@16: 					// PHP style object + method, i.e. [myObject, 'myMethod']
Chris@16: 					func[0][ func[1] ](this, args);
Chris@16: 				}
Chris@16: 				else if (typeof(func) == 'string') {
Chris@16: 					// name of function
Chris@16: 					window[func](this, args);
Chris@16: 				}
Chris@16: 			} // foreach event handler defined
Chris@16: 		} // user defined handler for event
Chris@16: 	}
Chris@16: 	
Chris@16: };