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 * Stretch the editor to full window size and back.
22 */
23
24var FCKFitWindow = function()
25{
26	this.Name = 'FitWindow' ;
27}
28
29FCKFitWindow.prototype.Execute = function()
30{
31	var eEditorFrame		= window.frameElement ;
32	var eEditorFrameStyle	= eEditorFrame.style ;
33
34	var eMainWindow			= parent ;
35	var eDocEl				= eMainWindow.document.documentElement ;
36	var eBody				= eMainWindow.document.body ;
37	var eBodyStyle			= eBody.style ;
38	var eParent ;
39
40	// No original style properties known? Go fullscreen.
41	if ( !this.IsMaximized )
42	{
43		// Registering an event handler when the window gets resized.
44		if( FCKBrowserInfo.IsIE )
45			eMainWindow.attachEvent( 'onresize', FCKFitWindow_Resize ) ;
46		else
47			eMainWindow.addEventListener( 'resize', FCKFitWindow_Resize, true ) ;
48
49		// Save the scrollbars position.
50		this._ScrollPos = FCKTools.GetScrollPosition( eMainWindow ) ;
51
52		// Save and reset the styles for the entire node tree. They could interfere in the result.
53		eParent = eEditorFrame ;
54		// The extra () is to avoid a warning with strict error checking. This is ok.
55		while( (eParent = eParent.parentNode) )
56		{
57			if ( eParent.nodeType == 1 )
58				eParent._fckSavedStyles = FCKTools.SaveStyles( eParent ) ;
59		}
60
61		// Hide IE scrollbars (in strict mode).
62		if ( FCKBrowserInfo.IsIE )
63		{
64			this.documentElementOverflow = eDocEl.style.overflow ;
65			eDocEl.style.overflow	= 'hidden' ;
66			eBodyStyle.overflow		= 'hidden' ;
67		}
68		else
69		{
70			// Hide the scroolbars in Firefox.
71			eBodyStyle.overflow = 'hidden' ;
72			eBodyStyle.width = '0px' ;
73			eBodyStyle.height = '0px' ;
74		}
75
76		// Save the IFRAME styles.
77		this._EditorFrameStyles = FCKTools.SaveStyles( eEditorFrame ) ;
78
79		// Resize.
80		var oViewPaneSize = FCKTools.GetViewPaneSize( eMainWindow ) ;
81
82		eEditorFrameStyle.position	= "absolute";
83		eEditorFrameStyle.zIndex	= FCKConfig.FloatingPanelsZIndex - 1;
84		eEditorFrameStyle.left		= "0px";
85		eEditorFrameStyle.top		= "0px";
86		eEditorFrameStyle.width		= oViewPaneSize.Width + "px";
87		eEditorFrameStyle.height	= oViewPaneSize.Height + "px";
88
89		// Giving the frame some (huge) borders on his right and bottom
90		// side to hide the background that would otherwise show when the
91		// editor is in fullsize mode and the window is increased in size
92		// not for IE, because IE immediately adapts the editor on resize,
93		// without showing any of the background oddly in firefox, the
94		// editor seems not to fill the whole frame, so just setting the
95		// background of it to white to cover the page laying behind it anyway.
96		if ( !FCKBrowserInfo.IsIE )
97		{
98			eEditorFrameStyle.borderRight = eEditorFrameStyle.borderBottom = "9999px solid white" ;
99			eEditorFrameStyle.backgroundColor		= "white";
100		}
101
102		// Scroll to top left.
103		eMainWindow.scrollTo(0, 0);
104
105		this.IsMaximized = true ;
106	}
107	else	// Resize to original size.
108	{
109		// Remove the event handler of window resizing.
110		if( FCKBrowserInfo.IsIE )
111			eMainWindow.detachEvent( "onresize", FCKFitWindow_Resize ) ;
112		else
113			eMainWindow.removeEventListener( "resize", FCKFitWindow_Resize, true ) ;
114
115		// Restore the CSS position for the entire node tree.
116		eParent = eEditorFrame ;
117		// The extra () is to avoid a warning with strict error checking. This is ok.
118		while( (eParent = eParent.parentNode) )
119		{
120			if ( eParent._fckSavedStyles )
121			{
122				FCKTools.RestoreStyles( eParent, eParent._fckSavedStyles ) ;
123				eParent._fckSavedStyles = null ;
124			}
125		}
126
127		// Restore IE scrollbars
128		if ( FCKBrowserInfo.IsIE )
129			eDocEl.style.overflow = this.documentElementOverflow ;
130
131		// Restore original size
132		FCKTools.RestoreStyles( eEditorFrame, this._EditorFrameStyles ) ;
133
134		// Restore the window scroll position.
135		eMainWindow.scrollTo( this._ScrollPos.X, this._ScrollPos.Y ) ;
136
137		this.IsMaximized = false ;
138	}
139
140	FCKToolbarItems.GetItem('FitWindow').RefreshState() ;
141
142	// It seams that Firefox restarts the editing area when making this changes.
143	// On FF 1.0.x, the area is not anymore editable. On FF 1.5+, the special
144	//configuration, like DisableFFTableHandles and DisableObjectResizing get
145	//lost, so we must reset it. Also, the cursor position and selection are
146	//also lost, even if you comment the following line (MakeEditable).
147	// if ( FCKBrowserInfo.IsGecko10 )	// Initially I thought it was a FF 1.0 only problem.
148	FCK.EditingArea.MakeEditable() ;
149
150	FCK.Focus() ;
151}
152
153FCKFitWindow.prototype.GetState = function()
154{
155	if ( FCKConfig.ToolbarLocation != 'In' )
156		return FCK_TRISTATE_DISABLED ;
157	else
158		return ( this.IsMaximized ? FCK_TRISTATE_ON : FCK_TRISTATE_OFF );
159}
160
161function FCKFitWindow_Resize()
162{
163	var oViewPaneSize = FCKTools.GetViewPaneSize( parent ) ;
164
165	var eEditorFrameStyle = window.frameElement.style ;
166
167	eEditorFrameStyle.width		= oViewPaneSize.Width + 'px' ;
168	eEditorFrameStyle.height	= oViewPaneSize.Height + 'px' ;
169}
170