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/*
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2006 Frederico Caldeira Knabben
 * 
 * Licensed under the terms of the GNU Lesser General Public License:
 *              http://www.opensource.org/licenses/lgpl-license.php
 * 
 * For further information visit:
 *              http://www.fckeditor.net/
 * 
 * "Support Open Source software. What about a donation today?"
 * 
 * File Name: fck_2.js
 *      This is the second part of the "FCK" object creation. This is the main
 *      object that represents an editor instance.
 * 
 * File Authors:
 *              Frederico Caldeira Knabben (fredck@fckeditor.net)
 */

// This collection is used by the browser specific implementations to tell
// wich named commands must be handled separately.
FCK.RedirectNamedCommands = new Object() ;

FCK.ExecuteNamedCommand = function( commandName, commandParameter, noRedirect )
{
        FCKUndo.SaveUndoStep() ;

        if ( !noRedirect && FCK.RedirectNamedCommands[ commandName ] != null )
                FCK.ExecuteRedirectedNamedCommand( commandName, commandParameter ) ;
        else
        {
                FCK.Focus() ;
                FCK.EditorDocument.execCommand( commandName, false, commandParameter ) ; 
                FCK.Events.FireEvent( 'OnSelectionChange' ) ;
        }
        
        FCKUndo.SaveUndoStep() ;
}

FCK.GetNamedCommandState = function( commandName )
{
        try
        {
                if ( !FCK.EditorDocument.queryCommandEnabled( commandName ) )
                        return FCK_TRISTATE_DISABLED ;
                else
                        return FCK.EditorDocument.queryCommandState( commandName ) ? FCK_TRISTATE_ON : FCK_TRISTATE_OFF ;
        }
        catch ( e )
        {
                return FCK_TRISTATE_OFF ;
        }
}

FCK.GetNamedCommandValue = function( commandName )
{
        var sValue = '' ;
        var eState = FCK.GetNamedCommandState( commandName ) ;
        
        if ( eState == FCK_TRISTATE_DISABLED ) 
                return null ;
        
        try
        {
                sValue = this.EditorDocument.queryCommandValue( commandName ) ;
        }
        catch(e) {}
        
        return sValue ? sValue : '' ;
}

FCK.PasteFromWord = function()
{
        FCKDialog.OpenDialog( 'FCKDialog_Paste', FCKLang.PasteFromWord, 'dialog/fck_paste.html', 400, 330, 'Word' ) ;
}

FCK.Preview = function()
{
        var iWidth      = FCKConfig.ScreenWidth * 0.8 ;
        var iHeight     = FCKConfig.ScreenHeight * 0.7 ;
        var iLeft       = ( FCKConfig.ScreenWidth - iWidth ) / 2 ;
        var oWindow = window.open( '', null, 'toolbar=yes,location=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes,width=' + iWidth + ',height=' + iHeight + ',left=' + iLeft ) ;
        
        var sHTML ;
        
        if ( FCKConfig.FullPage )
        {
                if ( FCK.TempBaseTag.length > 0 )
                        sHTML = FCK.TempBaseTag + FCK.GetXHTML() ;
                else
                        sHTML = FCK.GetXHTML() ;
        }
        else
        {
                sHTML = 
                        FCKConfig.DocType +
                        '<html dir="' + FCKConfig.ContentLangDirection + '">' +
                        '<head>' +
                        FCK.TempBaseTag +
                        '<title>' + FCKLang.Preview + '</title>' +
                        FCK._GetEditorAreaStyleTags() +
                        '</head><body>' + 
                        FCK.GetXHTML() + 
                        '</body></html>' ;
        }
        
        oWindow.document.write( sHTML );
        oWindow.document.close();
}

FCK.SwitchEditMode = function( noUndo )
{
        var bIsWysiwyg = ( FCK.EditMode == FCK_EDITMODE_WYSIWYG ) ;
        var sHtml ;
        
        // Update the HTML in the view output to show.
        if ( bIsWysiwyg )
        {
                if ( !noUndo && FCKBrowserInfo.IsIE )
                        FCKUndo.SaveUndoStep() ;

                sHtml = FCK.GetXHTML( FCKConfig.FormatSource ) ;
        }
        else
                sHtml = this.EditingArea.Textarea.value ;

        FCK.EditMode = bIsWysiwyg ? FCK_EDITMODE_SOURCE : FCK_EDITMODE_WYSIWYG ;

        FCK.SetHTML( sHtml ) ;

        // Set the Focus.
        FCK.Focus() ;

        // Update the toolbar (Running it directly causes IE to fail).
        FCKTools.RunFunction( FCK.ToolbarSet.RefreshModeState, FCK.ToolbarSet ) ;
}

FCK.CreateElement = function( tag )
{
        var e = FCK.EditorDocument.createElement( tag ) ;
        return FCK.InsertElementAndGetIt( e ) ;
}

FCK.InsertElementAndGetIt = function( e )
{
        e.setAttribute( 'FCKTempLabel', 'true' ) ;
        
        this.InsertElement( e ) ;
        
        var aEls = FCK.EditorDocument.getElementsByTagName( e.tagName ) ;
        
        for ( var i = 0 ; i < aEls.length ; i++ )
        {
                if ( aEls[i].getAttribute( 'FCKTempLabel' ) )
                {
                        aEls[i].removeAttribute( 'FCKTempLabel' ) ;
                        return aEls[i] ;
                }
        }
        return null ;
}