/*
 * Opens modal box with iframe 
 */
KalturaModal = {
	currentModalId: null,
	
	openModal: function (id, url, options) {
		var width  = options.width;
		var height = options.height;
		
		
		var jqBody = jQuery("body");

		// create overlay div
		var jqOverlay = jQuery("<div>");
		jqOverlay.attr("id","kalturaOverlay");
		jqBody.append(jqOverlay);
		
		// create modalbox div
		var jqModalbox = jQuery("<div>");
		jqModalbox.attr("id", id);
		jqModalbox.attr("class", "kalturaModal");
		jqModalbox.css("display", "block");
		jqModalbox.css("margin-top", "-"+(height/2)+"px");
		jqModalbox.css("margin-left", "-"+(width/2)+"px");
		jqModalbox.css("width", width+"px");
		
		// create content div inside objModalbox
		var jqModalboxContent = jQuery("<div>");
		jqModalboxContent.append('<iframe scrolling="no" width="' + width + '" height="' + height + '" frameborder="0" src="' + url + '" id="TB_iframeContent"/>');
		jqModalbox.append(jqModalboxContent);
		
		jqBody.append(jqModalbox);	
		
		this.currentModalId = id;
	},
	
	closeModal: function () {
		jqOverlay = jQuery("#kalturaOverlay");
		jqOverlay.remove();
		jqModalbox = jQuery("#"+this.currentModalId);
		jqModalbox.remove();

		this.currentModalId = null;
	}
}

Kaltura = {
	Delegate : { 
		create : function (/*Object*/ scope, /*Function*/ method ) {
			var f = function () {
				return method.apply (scope, arguments);
			}
			return f;
		}
	},
	
	animateModalSize: function (width, height, callback) {
		if (!callback)
			var callback = function () { };
			
		// if its not found, just run the callback
		if (jQuery("#TB_window").size() == 0)
		{
			callback();
		}
		else
		{
			this.originalWidth = Number(jQuery("#TB_window").css("width").replace("px", ""));
			this.originalHeight = Number(jQuery("#TB_iframeContent").css("height").replace("px", "")); // take the height of the iframe, because we ignore the height of the dark gray header (it's outside of the iframe)

			jQuery("#TB_window").animate(
				{ 
			        width: width + "px",
		        	marginTop: "-" + ((height + 27) / 2) + "px",
		        	marginLeft: "-" + (width / 2) + "px"
		      	}, 
		      	1000 
			);
			
			jQuery("#TB_iframeContent").animate(
				{
					width: width + "px",
					height: height + "px"
				},
				1000,
				null,
				callback
			);
		}
	},
	
	restoreModalSize: function (callback) {
		// the original modal dimensions
		//var origWidth = 669;
		//var origHeight = 512;
		
		Kaltura.animateModalSize(
			this.originalWidth,
			this.originalHeight,
			function () {
				Kaltura.restoreModalBoxWp26();
				callback();
			}
		);
	},
	
	getTopWindow: function () {
		return (window.opener) ? window.opener : (window.parent) ? window.parent : window.top;
	},
	
	hackSimpleEditorModal: function () {
		var topWindow = Kaltura.getTopWindow();
	
		// hide the header
		topWindow.jQuery("#TB_title").hide();
		
		// restore top border
		topWindow.jQuery("#TB_iframeContent").css("margin-top", "0px");
	},
	
	restoreSimpleEditorHack: function () {
		var topWindow = Kaltura.getTopWindow();
			
		// restore the header
		topWindow.jQuery("#TB_title").show();
		
		// this will remove 1px of top border
		topWindow.jQuery("#TB_iframeContent").css("margin-top", null);
	},
	
	hackModalBoxWp26: function () {
		// IMPORTANT: this code must run from the top window and not from the thickbox iframe
		 
		if (!Kaltura.compareWPVersion("2.6", ">=")) 
			return;

		// run tb_position to set the default thick box dimensions
		tb_position();
		
		var height = jQuery("#TB_window").css("height");
		height = height.replace("px", "");
		height = Number(height);
		if (isNaN(height))
			height = 0;
			
		jQuery("#TB_window").css("top", null);
		jQuery("#TB_window").css("margin-top", "-" + (height / 2) + "px");
		jQuery("#TB_window").css("height", null);
		
		// backup and temporary remove the tb_position function
		tb_positionKalturaBackup = tb_position;
		tb_position = function () { };
		
		// init interval to restore tb_position function when the thickbox is closed
		Kaltura.modalBoxWp26Interval = setInterval(Kaltura.modalBoxWp26IntervalFunction, 100);
	},
	
	modalBoxWp26IntervalFunction: function () {
		// if thickbox was closed
		if (jQuery("#TB_window").css("display") != "block")
		{
			Kaltura.restoreModalBoxWp26();
		}
	},
	
	restoreModalBoxWp26: function () {
		if (!Kaltura.compareWPVersion("2.6", ">=")) 
			return;
			
		// clear the interval
		clearInterval(Kaltura.modalBoxWp26Interval);
		
		// restore the position of the thickbox
		tb_position = tb_positionKalturaBackup;
		tb_position();
	},
	
	activatePlayer: function (thumbnailDivId, playerDivId) {
		jQuery('#'+playerDivId).show();
		jQuery('#'+thumbnailDivId).hide();
	},
	
	openCommentCW: function (pluginUrl) {
		var postId = jQuery('[@name=comment_post_ID]').val();
		var author = jQuery('#author').val();
		var email  = jQuery('#email').val();
		
		KalturaModal.openModal('contribution_wizard', pluginUrl + '/page_contribution_wizard_video_comment.php?postid='+postId+'&author='+author+'&email='+email, { width: 680, height: 360 } );
		jQuery("#contribution_wizard").addClass("modalContributionWizard");
	},
	
	doErrorFromComments: function (errorMsg) {
		KalturaModal.closeModal();
		alert(errorMsg);
	},
	
	isMacFF: function () {
  		var userAgent = navigator.userAgent.toLowerCase();
  		if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
    		return true;
  		}
  		return false;
	},
	
	hideTinyMCEToolbar: function () {
		var topWindow = Kaltura.getTopWindow();
		topWindow.jQuery("#content_tbl tr.mceFirst").hide();
	},
	
	showTinyMCEToolbar: function () {
		var topWindow = Kaltura.getTopWindow();
		topWindow.jQuery("#content_tbl tr.mceFirst").show();
	},
	
	compareWPVersion: function (compareVersion, operator) {
		// split to arrays
		var compareVersionArray = compareVersion.split(".");
		var wordpressVersionArray = Kaltura_WPVersion.split(".");
		
		var maxLen = 0; 
		
		if (compareVersionArray.length > wordpressVersionArray.length)
			maxLen = compareVersionArray.length;
		else 
			maxLen = wordpressVersionArray.length;
		
		// we add to every part of the version trailing zeros
		// so [1,6] and [12,4] would be [10,6] and [12,4], then we will join each array and compare it as 2 numbers
		for (var i = 0; i < maxLen; i++) {
			var v1 = "0";
			var v2 = "0";
			
			if (wordpressVersionArray[i])
				v1 = wordpressVersionArray[i];
			
			if (compareVersionArray[i])
				v2 = compareVersionArray[i];
				
			if (v1.length > v2.length)
			{
				for (var j = 0; j < v1.length - v2.length; j++)
				{
					v2 += (v2 + "0");
				}
			} 
			
			if (v1.length < v2.length)
			{
				for (var j = 0; j < v2.length - v1.length; j++)
				{
					v1 += (v1 + "0");
				}
			}
			
			wordpressVersionArray[i] = v1;
			compareVersionArray[i] = v2;
		}
		
		// now we convert the array back to number
		var v1compare = Number(wordpressVersionArray.join(""));
		var v2compare = Number(compareVersionArray.join(""));
		
		
		// and we can just compare 2 number
		switch(operator)
		{
			case ">":
				if (v1compare > v2compare)
					return true;
				break;
			case "<":
				if (v1compare < v2compare)
					return true;
				break;
			case ">=":
				if (v1compare >= v2compare)
					return true;
				break;
			case "<=":
				if (v1compare <= v2compare)
					return true;
				break;
			case "=":
			case "==":
			default:
				if (v1compare == v2compare)
					return true;
				break;
		}
		
		return false;
	}
	
}