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 * Component that creates floating panels. It is used by many
22 * other components, like the toolbar items, context menu, etc...
23 */
24
25var FCKPanel = function( parentWindow )
26{
27	this.IsRTL			= ( FCKLang.Dir == 'rtl' ) ;
28	this.IsContextMenu	= false ;
29	this._LockCounter	= 0 ;
30
31	this._Window = parentWindow || window ;
32
33	var oDocument ;
34
35	if ( FCKBrowserInfo.IsIE )
36	{
37		// Create the Popup that will hold the panel.
38		this._Popup	= this._Window.createPopup() ;
39		oDocument = this.Document = this._Popup.document ;
40
41		FCK.IECleanup.AddItem( this, FCKPanel_Cleanup ) ;
42	}
43	else
44	{
45		var oIFrame = this._IFrame = this._Window.document.createElement('iframe') ;
46		oIFrame.src					= 'javascript:void(0)' ;
47		oIFrame.allowTransparency	= true ;
48		oIFrame.frameBorder			= '0' ;
49		oIFrame.scrolling			= 'no' ;
50		oIFrame.width = oIFrame.height = 0 ;
51		FCKDomTools.SetElementStyles( oIFrame,
52			{
53				position	: 'absolute',
54				zIndex		: FCKConfig.FloatingPanelsZIndex
55			} ) ;
56
57		if ( this._Window == window.parent && window.frameElement )
58		{
59			var scrollPos = null ;
60			if ( FCKBrowserInfo.IsGecko && FCK && FCK.EditorDocument )
61				scrollPos = [ FCK.EditorDocument.body.scrollLeft, FCK.EditorDocument.body.scrollTop ] ;
62			window.frameElement.parentNode.insertBefore( oIFrame, window.frameElement ) ;
63			if ( scrollPos )
64			{
65				var restoreFunc = function()
66				{
67					FCK.EditorDocument.body.scrollLeft = scrollPos[0] ;
68					FCK.EditorDocument.body.scrollTop = scrollPos[1] ;
69				}
70				setTimeout( restoreFunc, 500 ) ;
71			}
72		}
73		else
74			this._Window.document.body.appendChild( oIFrame ) ;
75
76		var oIFrameWindow = oIFrame.contentWindow ;
77
78		oDocument = this.Document = oIFrameWindow.document ;
79
80		// Workaround for Safari 12256. Ticket #63
81		var sBase = '' ;
82		if ( FCKBrowserInfo.IsSafari )
83			sBase = '<base href="' + window.document.location + '">' ;
84
85		// Initialize the IFRAME document body.
86		oDocument.open() ;
87		oDocument.write( '<html><head>' + sBase + '<\/head><body style="margin:0px;padding:0px;"><\/body><\/html>' ) ;
88		oDocument.close() ;
89
90		FCKTools.AddEventListenerEx( oIFrameWindow, 'focus', FCKPanel_Window_OnFocus, this ) ;
91		FCKTools.AddEventListenerEx( oIFrameWindow, 'blur', FCKPanel_Window_OnBlur, this ) ;
92	}
93
94	oDocument.dir = FCKLang.Dir ;
95
96	FCKTools.AddEventListener( oDocument, 'contextmenu', FCKTools.CancelEvent ) ;
97
98
99	// Create the main DIV that is used as the panel base.
100	this.MainNode = oDocument.body.appendChild( oDocument.createElement('DIV') ) ;
101
102	// The "float" property must be set so Firefox calculates the size correctly.
103	this.MainNode.style.cssFloat = this.IsRTL ? 'right' : 'left' ;
104}
105
106
107FCKPanel.prototype.AppendStyleSheet = function( styleSheet )
108{
109	FCKTools.AppendStyleSheet( this.Document, styleSheet ) ;
110}
111
112FCKPanel.prototype.Preload = function( x, y, relElement )
113{
114	// The offsetWidth and offsetHeight properties are not available if the
115	// element is not visible. So we must "show" the popup with no size to
116	// be able to use that values in the second call (IE only).
117	if ( this._Popup )
118		this._Popup.show( x, y, 0, 0, relElement ) ;
119}
120
121FCKPanel.prototype.Show = function( x, y, relElement, width, height )
122{
123	var iMainWidth ;
124	var eMainNode = this.MainNode ;
125
126	if ( this._Popup )
127	{
128		// The offsetWidth and offsetHeight properties are not available if the
129		// element is not visible. So we must "show" the popup with no size to
130		// be able to use that values in the second call.
131		this._Popup.show( x, y, 0, 0, relElement ) ;
132
133		// The following lines must be place after the above "show", otherwise it
134		// doesn't has the desired effect.
135		FCKDomTools.SetElementStyles( eMainNode,
136			{
137				width	: width ? width + 'px' : '',
138				height	: height ? height + 'px' : ''
139			} ) ;
140
141		iMainWidth = eMainNode.offsetWidth ;
142
143		if ( this.IsRTL )
144		{
145			if ( this.IsContextMenu )
146				x  = x - iMainWidth + 1 ;
147			else if ( relElement )
148				x  = ( x * -1 ) + relElement.offsetWidth - iMainWidth ;
149		}
150
151		// Second call: Show the Popup at the specified location, with the correct size.
152		this._Popup.show( x, y, iMainWidth, eMainNode.offsetHeight, relElement ) ;
153
154		if ( this.OnHide )
155		{
156			if ( this._Timer )
157				CheckPopupOnHide.call( this, true ) ;
158
159			this._Timer = FCKTools.SetInterval( CheckPopupOnHide, 100, this ) ;
160		}
161	}
162	else
163	{
164		// Do not fire OnBlur while the panel is opened.
165		if ( typeof( FCK.ToolbarSet.CurrentInstance.FocusManager ) != 'undefined' )
166			FCK.ToolbarSet.CurrentInstance.FocusManager.Lock() ;
167
168		if ( this.ParentPanel )
169			this.ParentPanel.Lock() ;
170
171		FCKDomTools.SetElementStyles( eMainNode,
172			{
173				width	: width ? width + 'px' : '',
174				height	: height ? height + 'px' : ''
175			} ) ;
176
177		iMainWidth = eMainNode.offsetWidth ;
178
179		if ( !width )	this._IFrame.width	= 1 ;
180		if ( !height )	this._IFrame.height	= 1 ;
181
182		// This is weird... but with Firefox, we must get the offsetWidth before
183		// setting the _IFrame size (which returns "0"), and then after that,
184		// to return the correct width. Remove the first step and it will not
185		// work when the editor is in RTL.
186		//
187		// The "|| eMainNode.firstChild.offsetWidth" part has been added
188		// for Opera compatibility (see #570).
189		iMainWidth = eMainNode.offsetWidth || eMainNode.firstChild.offsetWidth ;
190
191		var oPos = FCKTools.GetElementPosition(
192			relElement.nodeType == 9 ?
193				( FCKTools.IsStrictMode( relElement ) ? relElement.documentElement : relElement.body ) :
194				relElement,
195			this._Window ) ;
196
197		if ( this.IsRTL && !this.IsContextMenu )
198			x = ( x * -1 ) ;
199
200		x += oPos.X ;
201		y += oPos.Y ;
202
203		if ( this.IsRTL )
204		{
205			if ( this.IsContextMenu )
206				x  = x - iMainWidth + 1 ;
207			else if ( relElement )
208				x  = x + relElement.offsetWidth - iMainWidth ;
209		}
210		else
211		{
212			var oViewPaneSize = FCKTools.GetViewPaneSize( this._Window ) ;
213			var oScrollPosition = FCKTools.GetScrollPosition( this._Window ) ;
214
215			var iViewPaneHeight	= oViewPaneSize.Height + oScrollPosition.Y ;
216			var iViewPaneWidth	= oViewPaneSize.Width + oScrollPosition.X ;
217
218			if ( ( x + iMainWidth ) > iViewPaneWidth )
219				x -= x + iMainWidth - iViewPaneWidth ;
220
221			if ( ( y + eMainNode.offsetHeight ) > iViewPaneHeight )
222				y -= y + eMainNode.offsetHeight - iViewPaneHeight ;
223		}
224
225		if ( x < 0 )
226			 x = 0 ;
227
228		// Set the context menu DIV in the specified location.
229		FCKDomTools.SetElementStyles( this._IFrame,
230			{
231				left	: x + 'px',
232				top		: y + 'px'
233			} ) ;
234
235		var iWidth	= iMainWidth ;
236		var iHeight	= eMainNode.offsetHeight ;
237
238		this._IFrame.width	= iWidth ;
239		this._IFrame.height = iHeight ;
240
241		// Move the focus to the IFRAME so we catch the "onblur".
242		this._IFrame.contentWindow.focus() ;
243	}
244
245	this._IsOpened = true ;
246
247	FCKTools.RunFunction( this.OnShow, this ) ;
248}
249
250FCKPanel.prototype.Hide = function( ignoreOnHide )
251{
252	if ( this._Popup )
253		this._Popup.hide() ;
254	else
255	{
256		if ( !this._IsOpened )
257			return ;
258
259		// Enable the editor to fire the "OnBlur".
260		if ( typeof( FCKFocusManager ) != 'undefined' )
261			FCKFocusManager.Unlock() ;
262
263		// It is better to set the sizes to 0, otherwise Firefox would have
264		// rendering problems.
265		this._IFrame.width = this._IFrame.height = 0 ;
266
267		this._IsOpened = false ;
268
269		if ( this.ParentPanel )
270			this.ParentPanel.Unlock() ;
271
272		if ( !ignoreOnHide )
273			FCKTools.RunFunction( this.OnHide, this ) ;
274	}
275}
276
277FCKPanel.prototype.CheckIsOpened = function()
278{
279	if ( this._Popup )
280		return this._Popup.isOpen ;
281	else
282		return this._IsOpened ;
283}
284
285FCKPanel.prototype.CreateChildPanel = function()
286{
287	var oWindow = this._Popup ? FCKTools.GetDocumentWindow( this.Document ) : this._Window ;
288
289	var oChildPanel = new FCKPanel( oWindow ) ;
290	oChildPanel.ParentPanel = this ;
291
292	return oChildPanel ;
293}
294
295FCKPanel.prototype.Lock = function()
296{
297	this._LockCounter++ ;
298}
299
300FCKPanel.prototype.Unlock = function()
301{
302	if ( --this._LockCounter == 0 && !this.HasFocus )
303		this.Hide() ;
304}
305
306/* Events */
307
308function FCKPanel_Window_OnFocus( e, panel )
309{
310	panel.HasFocus = true ;
311}
312
313function FCKPanel_Window_OnBlur( e, panel )
314{
315	panel.HasFocus = false ;
316
317	if ( panel._LockCounter == 0 )
318		FCKTools.RunFunction( panel.Hide, panel ) ;
319}
320
321function CheckPopupOnHide( forceHide )
322{
323	if ( forceHide || !this._Popup.isOpen )
324	{
325		window.clearInterval( this._Timer ) ;
326		this._Timer = null ;
327
328		FCKTools.RunFunction( this.OnHide, this ) ;
329	}
330}
331
332function FCKPanel_Cleanup()
333{
334	this._Popup = null ;
335	this._Window = null ;
336	this.Document = null ;
337	this.MainNode = null ;
338}
339