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