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 * Plugin: automatically resizes the editor until a configurable maximun
22 * height (FCKConfig.AutoGrowMax), based on its contents.
23 */
24
25var FCKAutoGrow_Min = window.frameElement.offsetHeight ;
26
27function FCKAutoGrow_Check()
28{
29	var oInnerDoc = FCK.EditorDocument ;
30
31	var iFrameHeight, iInnerHeight ;
32
33	if ( FCKBrowserInfo.IsIE )
34	{
35		iFrameHeight = FCK.EditorWindow.frameElement.offsetHeight ;
36		iInnerHeight = oInnerDoc.body.scrollHeight ;
37	}
38	else
39	{
40		iFrameHeight = FCK.EditorWindow.innerHeight ;
41		iInnerHeight = oInnerDoc.body.offsetHeight ;
42	}
43
44	var iDiff = iInnerHeight - iFrameHeight ;
45
46	if ( iDiff != 0 )
47	{
48		var iMainFrameSize = window.frameElement.offsetHeight ;
49
50		if ( iDiff > 0 && iMainFrameSize < FCKConfig.AutoGrowMax )
51		{
52			iMainFrameSize += iDiff ;
53			if ( iMainFrameSize > FCKConfig.AutoGrowMax )
54				iMainFrameSize = FCKConfig.AutoGrowMax ;
55		}
56		else if ( iDiff < 0 && iMainFrameSize > FCKAutoGrow_Min )
57		{
58			iMainFrameSize += iDiff ;
59			if ( iMainFrameSize < FCKAutoGrow_Min )
60				iMainFrameSize = FCKAutoGrow_Min ;
61		}
62		else
63			return ;
64
65		window.frameElement.height = iMainFrameSize ;
66	}
67}
68
69FCK.AttachToOnSelectionChange( FCKAutoGrow_Check ) ;
70
71function FCKAutoGrow_SetListeners()
72{
73	if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG )
74		return ;
75
76	FCK.EditorWindow.attachEvent( 'onscroll', FCKAutoGrow_Check ) ;
77	FCK.EditorDocument.attachEvent( 'onkeyup', FCKAutoGrow_Check ) ;
78}
79
80if ( FCKBrowserInfo.IsIE )
81{
82//	FCKAutoGrow_SetListeners() ;
83	FCK.Events.AttachEvent( 'OnAfterSetHTML', FCKAutoGrow_SetListeners ) ;
84}
85
86function FCKAutoGrow_CheckEditorStatus( sender, status )
87{
88	if ( status == FCK_STATUS_COMPLETE )
89		FCKAutoGrow_Check() ;
90}
91
92FCK.Events.AttachEvent( 'OnStatusChange', FCKAutoGrow_CheckEditorStatus ) ;