/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (C) 2003-2008 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 ==
 *
 * FCKCoreStyleCommand Class: controls the execution of a core style. Core
 * styles are usually represented as buttons in the toolbar., like Bold and
 * Italic.
 */

 var FCKCoreStyleCommand = function( coreStyleName )
 {
     this.Name = 'CoreStyle' ;
     this.StyleName = '_FCK_' + coreStyleName ;
     this.IsActive = false ;

     FCKStyles.AttachStyleStateChange( this.StyleName, this._OnStyleStateChange, this ) ;
 }

 FCKCoreStyleCommand.prototype =
 {
    Execute : function()
    {
        FCKUndo.SaveUndoStep() ;

        if ( this.IsActive )
            FCKStyles.RemoveStyle( this.StyleName ) ;
        else
            FCKStyles.ApplyStyle( this.StyleName ) ;

        FCK.Focus() ;
        FCK.Events.FireEvent( 'OnSelectionChange' ) ;
    },

    GetState : function()
    {
        if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG )
            return FCK_TRISTATE_DISABLED ;
        return this.IsActive ? FCK_TRISTATE_ON : FCK_TRISTATE_OFF ;
    },

    _OnStyleStateChange : function( styleName, isActive )
    {
        this.IsActive = isActive ;
    }
 };
