/**
 * $Id: editor_plugin_src.js 201 2007-02-12 15:56:56Z spocke $
 *
 * @author Moxiecode
 * @copyright Copyright © 2004-2008, Moxiecode Systems AB, All rights reserved.
 */

(function() {
	// Load plugin specific language pack
	//tinymce.PluginManager.requireLangPack('kaltura');

	tinymce.create('tinymce.plugins.Kaltura', {
		/**
		 * Initializes the plugin, this will be executed after the plugin has been created.
		 * This call is done before the editor instance has finished it's initialization so use the onInit event
		 * of the editor instance to intercept that event.
		 *
		 * @param {tinymce.Editor} ed Editor instance that the plugin is initialized in.
		 * @param {string} url Absolute URL to where the plugin is located.
		 */
		init : function(ed, url) {
			this._url = url

			ed.onInit.add(function() {
				ed.dom.loadCSS(url + "/css/tinymce.css");
			});
			
			var onBeforeSetContentDelegate = Kaltura.Delegate.create(this, this._onBeforeSetContent);
			ed.onBeforeSetContent.add(onBeforeSetContentDelegate);
			
			var onGetContentDelegate = Kaltura.Delegate.create(this, this._onGetContent);
			ed.onGetContent.add(onGetContentDelegate);
		},

		/**
		 * Creates control instances based in the incomming name. This method is normally not
		 * needed since the addButton method of the tinymce.Editor class is a more easy way of adding buttons
		 * but you sometimes need to create more complex controls like listboxes, split buttons etc then this
		 * method can be used to create those.
		 *
		 * @param {String} n Name of the control to create.
		 * @param {tinymce.ControlManager} cm Control manager to use inorder to create new control.
		 * @return {tinymce.ui.Control} New control instance or null if no control was created.
		 */
		createControl : function(n, cm) {
			return null;
		},

		/**
		 * Returns information about the plugin as a name/value array.
		 * The current keys are longname, author, authorurl, infourl and version.
		 *
		 * @return {Object} Name/value array containing information about the plugin.
		 */
		getInfo : function() {
			return {
				longname : 'All in One Video Pack',
				author : 'Kaltura',
				authorurl : 'http://www.kaltura.com',
				infourl : 'http://corp.kaltura.com',
				version : "1.0"
			};
		},
		
		_tagStart : '[kaltura-widget',
		
		_tagEnd : '/]',
		
		_replaceTagStart : '<img',
		
		_replaceTagEnd : '/>',
		
		_originalHeight: 0,
		
		_originalWidth: 0,
		
		_onBeforeSetContent : function(ed, obj) {
			if (!obj.content)
				return;
				
			var contentData = obj.content;
			var startPos = 0;

			while ((startPos = contentData.indexOf(this._tagStart, startPos)) != -1) {
				var endPos = contentData.indexOf(this._tagEnd, startPos);
				var attribs = this._parseAttributes(contentData.substring(startPos + this._tagStart.length, endPos));
				
				// set defaults if not found
				if (!attribs['wid'])
					attribs['wid'] = '';
				
				if (!attribs['addpermission'])
					attribs['addpermission'] = '';
				
				if (!attribs['editpermission'])
					attribs['editpermission'] = '';
				
				if (!attribs['size'])
					attribs['size'] = 'custom';

				if (!attribs['align'])
					attribs['align'] = '';
				
				if (!attribs['width'] || !attribs['height'])
				{
					attribs['width'] = '410';
					attribs['height'] = '364';
				}
				
				// for backward compatibility, when we used specific size
				if (attribs['size'] == 'large') 
				{
					attribs['width'] = '410';
					attribs['height'] = '364';
				}
				
				if (attribs['size'] == 'small')
				{
					attribs['width'] = '250';
					attribs['height'] = '244';
				}
				
				if (attribs['width'] == '410' && attribs['height'] == '364')
					attribs['size'] = 'large';
				
				if (attribs['width'] == '250' && attribs['height'] == '244')
					attribs['size'] = 'small';
				
				endPos += this._tagEnd.length;
				var contentDataEnd = contentData.substr(endPos);
				contentData = contentData.substr(0, startPos);

				// build the image tag
				contentData += '<img ';
				contentData += 'src="' + (this._url + '/../thumbnails/placeholder.gif') + '" ';
				contentData += 'title="Kaltura" ';
				contentData += 'alt="Kaltura" ';
				contentData += 'class="kaltura_item align' + attribs['align'] + ' kaltura_add_' + attribs['addpermission'] + ' kaltura_edit_' + attribs['editpermission'] + ' kaltura_id_' + attribs["wid"] + '" '; 
				contentData += 'name="mce_plugin_kaltura_desc" ';
				contentData += 'width="' + attribs['width'] + '" ';
				contentData += 'height="' + attribs['height'] + '" ';
				
				if (attribs['style'])
					contentData += 'style="' + attribs['style'] + '" ';
				
				contentData += '/>';
				
				contentData += contentDataEnd;
			}
			
			obj.content = contentData;
		},
		
		_onGetContent : function(ed, obj) {
			if (!obj.content)
				return;

			var contentData = obj.content;
			var startPos = 0;
			while ((startPos = contentData.indexOf(this._replaceTagStart, startPos)) != -1) {
				var endPos = contentData.indexOf(this._replaceTagEnd, startPos);
				if (endPos > -1) {
					var attribs = this._parseAttributes(contentData.substring(startPos + this._replaceTagStart.length, endPos));
				
					var className = attribs['class'];
					if (!className || className.indexOf('kaltura_item') == -1) {
						startPos++;
						continue;
					}
					
					var wid = "";
					var addpermission = "";
					var editpermission = "";
					
					// get the attribs that we saved in the class name
					var classAttribs = className.split(" "); 
					for(var j = 0; j < classAttribs.length; j++) {
						switch (classAttribs[j])
						{
							case 'alignright':
								attribs['align'] = 'right';
								break;
							case 'alignleft':
								attribs['align'] = 'left';
								break;
							case 'aligncenter':
								attribs['align'] = 'center';
								break;
							default:
								classAttrArr = classAttribs[j].match(/kaltura_(\w*)_(\w*)/);
								if (classAttrArr && classAttrArr.length == 3) {
									switch(classAttrArr[1]) {
										case 'id':
											if (classAttrArr[2] != "")
												wid = classAttrArr[2];
											break;
										case 'add': 
											if (classAttrArr[2] != "")
												addpermission = classAttrArr[2];
											break;
										case 'edit':
											if (classAttrArr[2] != "")
												editpermission = classAttrArr[2];
											break;
									}
								}
								break;
						}
					}
					
					endPos += this._replaceTagEnd.length;
					var contentDataEnd = contentData.substr(endPos);
					contentData = contentData.substr(0, startPos);
					

					contentData += this._tagStart + ' ';
					contentData += 'wid="' + wid + '" '; // widget id
					
					contentData += 'width="' + attribs['width'] + '" ';
					contentData += 'height="' + attribs['height'] + '" ';
					
					if (attribs['style'])
						contentData += 'style="' + attribs['style'] + '" ';
					
					contentData += 'addpermission="' +  addpermission + '" ';
					contentData += 'editpermission="' +  editpermission + '" ';
					
					if (attribs['align'])
						contentData += 'align="' + attribs['align'] + '" '; // align
					
					contentData += this._tagEnd;
					contentData += contentDataEnd;
				}
				else { 
					startPos++;
				}
			}
			
			obj.content = contentData;
		},
		
		_parseAttributes : function(attribute_string) {
			var attributeName = '';
			var attributeValue = '';
			var withInName;
			var withInValue;
			var attributes = new Array();
			var whiteSpaceRegExp = new RegExp('^[ \n\r\t]+', 'g');
	
			if (attribute_string == null || attribute_string.length < 2)
				return null;
	
			withInName = withInValue = false;
	
			for (var i=0; i<attribute_string.length; i++) {
				var chr = attribute_string.charAt(i);
	
				if ((chr == '"' || chr == "'") && !withInValue)
					withInValue = true;
				else if ((chr == '"' || chr == "'") && withInValue) {
					withInValue = false;
	
					var pos = attributeName.lastIndexOf(' ');
					if (pos != -1)
						attributeName = attributeName.substring(pos+1);
	
					attributes[attributeName.toLowerCase()] = attributeValue.substring(1);
	
					attributeName = '';
					attributeValue = '';
				} else if (!whiteSpaceRegExp.test(chr) && !withInName && !withInValue)
					withInName = true;
	
				if (chr == '=' && withInName)
					withInName = false;
	
				if (withInName)
					attributeName += chr;
	
				if (withInValue)
					attributeValue += chr;
			}
			return attributes;
		}
	});
	
	// Register plugin
	tinymce.PluginManager.add('kaltura', tinymce.plugins.Kaltura);
})();