1/*
2 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
3 * Copyright (C) 2003-2007 Frederico Caldeira Knabben
4 *
5 * == BEGIN LICENSE ==
6 *
7 * Licensed under the terms of any of the following licenses at your
8 * choice:
9 *
10 *  - GNU General Public License Version 2 or later (the "GPL")
11 *    http://www.gnu.org/licenses/gpl.html
12 *
13 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
14 *    http://www.gnu.org/licenses/lgpl.html
15 *
16 *  - Mozilla Public License Version 1.1 or later (the "MPL")
17 *    http://www.mozilla.org/MPL/MPL-1.1.html
18 *
19 * == END LICENSE ==
20 *
21 * FCKShowBlockCommand Class: the "Show Blocks" command.
22 */
23
24var FCKShowBlockCommand = function( name, defaultState )
25{
26	this.Name = name ;
27	if ( defaultState != undefined )
28		this._SavedState = defaultState ;
29	else
30		this._SavedState = null ;
31}
32
33FCKShowBlockCommand.prototype.Execute = function()
34{
35	var state = this.GetState() ;
36
37	if ( state == FCK_TRISTATE_DISABLED )
38		return ;
39
40	var body = FCK.EditorDocument.body ;
41
42	if ( state == FCK_TRISTATE_ON )
43		body.className = body.className.replace( /(^| )FCK__ShowBlocks/g, '' ) ;
44	else
45		body.className += ' FCK__ShowBlocks' ;
46
47	FCK.Events.FireEvent( 'OnSelectionChange' ) ;
48}
49
50FCKShowBlockCommand.prototype.GetState = function()
51{
52	if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG )
53		return FCK_TRISTATE_DISABLED ;
54
55	// On some cases FCK.EditorDocument.body is not yet available, so try/catch.
56	try
57	{
58		if ( /FCK__ShowBlocks(?:\s|$)/.test( FCK.EditorDocument.body.className ) )
59			return FCK_TRISTATE_ON ;
60	}
61	catch (e)
62	{}
63
64	return FCK_TRISTATE_OFF ;
65}
66
67FCKShowBlockCommand.prototype.SaveState = function()
68{
69	this._SavedState = this.GetState() ;
70}
71
72FCKShowBlockCommand.prototype.RestoreState = function()
73{
74	if ( this._SavedState != null && this.GetState() != this._SavedState )
75		this.Execute() ;
76}
77