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/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (C) 2003-2009 Frederico Caldeira Knabben
 *
 * == BEGIN LICENSE ==
 *
 * Licensed under the terms of any of the following licenses at your
 * choice:
 *
 *  - GNU General Public License Version 2 or later (the "GPL")
 *    http://www.gnu.org/licenses/gpl.html
 *
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 *
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 *
 * == END LICENSE ==
 *
 * Create the FCKeditorAPI object that is available as a global object in
 * the page where the editor is placed in.
 */

var FCKeditorAPI ;

function InitializeAPI()
{
	var oParentWindow = window.parent ;

if ( !( FCKeditorAPI = oParentWindow.FCKeditorAPI ) )
	{
		// Make the FCKeditorAPI object available in the parent window. Use
		// eval so this core runs in the parent's scope and so it will still be
		// available if the editor instance is removed ("Can't execute code
		// from a freed script" error).

// Note: we check the existence of oEditor.GetParentForm because some external
		// code (like JSON) can extend the Object prototype and we get then extra oEditor
		// objects that aren't really FCKeditor instances.
		var sScript =
			'window.FCKeditorAPI = {' +
				'Version : "2.6.4",' +
				'VersionBuild : "21629",' +
				'Instances : window.FCKeditorAPI && window.FCKeditorAPI.Instances || {},' +

'GetInstance : function( name )' +
				'{' +
					'return this.Instances[ name ];' +
				'},' +

'_FormSubmit : function()' +
				'{' +
					'for ( var name in FCKeditorAPI.Instances )' +
					'{' +
						'var oEditor = FCKeditorAPI.Instances[ name ] ;' +
						'if ( oEditor.GetParentForm && oEditor.GetParentForm() == this )' +
							'oEditor.UpdateLinkedField() ;' +
					'}' +
					'this._FCKOriginalSubmit() ;' +
				'},' +

'_FunctionQueue	: window.FCKeditorAPI && window.FCKeditorAPI._FunctionQueue || {' +
					'Functions : new Array(),' +
					'IsRunning : false,' +

'Add : function( f )' +
					'{' +
						'this.Functions.push( f );' +
						'if ( !this.IsRunning )' +
							'this.StartNext();' +
					'},' +

'StartNext : function()' +
					'{' +
						'var aQueue = this.Functions ;' +
						'if ( aQueue.length > 0 )' +
						'{' +
							'this.IsRunning = true;' +
							'aQueue[0].call();' +
						'}' +
						'else ' +
							'this.IsRunning = false;' +
					'},' +

'Remove : function( f )' +
					'{' +
						'var aQueue = this.Functions;' +
						'var i = 0, fFunc;' +
						'while( (fFunc = aQueue[ i ]) )' +
						'{' +
							'if ( fFunc == f )' +
								'aQueue.splice( i,1 );' +
							'i++ ;' +
						'}' +
						'this.StartNext();' +
					'}' +
				'}' +
			'}' ;

// In IE, the "eval" function is not always available (it works with
		// the JavaScript samples, but not with the ASP ones, for example).
		// So, let's use the execScript instead.
		if ( oParentWindow.execScript )
			oParentWindow.execScript( sScript, 'JavaScript' ) ;
		else
		{
			if ( FCKBrowserInfo.IsGecko10 )
			{
				// FF 1.0.4 gives an error with the request bellow. The
				// following seams to work well.
				eval.call( oParentWindow, sScript ) ;
			}
			else if( FCKBrowserInfo.IsAIR )
			{
				FCKAdobeAIR.FCKeditorAPI_Evaluate( oParentWindow, sScript ) ;
			}
			else if ( FCKBrowserInfo.IsSafari )
			{
				// oParentWindow.eval in Safari executes in the calling window
				// environment, instead of the parent one. The following should
				// make it work.
				var oParentDocument = oParentWindow.document ;
				var eScript = oParentDocument.createElement('script') ;
				eScript.appendChild( oParentDocument.createTextNode( sScript ) ) ;
				oParentDocument.documentElement.appendChild( eScript ) ;
			}
			else
				oParentWindow.eval( sScript ) ;
		}

FCKeditorAPI = oParentWindow.FCKeditorAPI ;

// The __Instances properly has been changed to the public Instances,
		// but we should still have the "deprecated" version of it.
		FCKeditorAPI.__Instances = FCKeditorAPI.Instances ;
	}

// Add the current instance to the FCKeditorAPI's instances collection.
	FCKeditorAPI.Instances[ FCK.Name ] = FCK ;
}

// Attach to the form onsubmit event and to the form.submit().
function _AttachFormSubmitToAPI()
{
	// Get the linked field form.
	var oForm = FCK.GetParentForm() ;

if ( oForm )
	{
		// Attach to the onsubmit event.
		FCKTools.AddEventListener( oForm, 'submit', FCK.UpdateLinkedField ) ;

// IE sees oForm.submit function as an 'object'.
		if ( !oForm._FCKOriginalSubmit && ( typeof( oForm.submit ) == 'function' || ( !oForm.submit.tagName && !oForm.submit.length ) ) )
		{
			// Save the original submit.
			oForm._FCKOriginalSubmit = oForm.submit ;

// Create our replacement for the submit.
			oForm.submit = FCKeditorAPI._FormSubmit ;
		}
	}
}

function FCKeditorAPI_Cleanup()
{
	if ( window.FCKConfig && FCKConfig.MsWebBrowserControlCompat
			&& !window.FCKUnloadFlag )
		return ;
	delete FCKeditorAPI.Instances[ FCK.Name ] ;
}
function FCKeditorAPI_ConfirmCleanup()
{
	if ( window.FCKConfig && FCKConfig.MsWebBrowserControlCompat )
		window.FCKUnloadFlag = true ;
}
FCKTools.AddEventListener( window, 'unload', FCKeditorAPI_Cleanup ) ;
FCKTools.AddEventListener( window, 'beforeunload', FCKeditorAPI_ConfirmCleanup) ;