2001-09-29 00:14:13 +04:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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2004-04-18 18:30:37 +04:00
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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1999-02-22 06:19:24 +03:00
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*
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2004-04-18 18:30:37 +04:00
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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1999-02-22 06:19:24 +03:00
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*
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2001-09-29 00:14:13 +04:00
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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1999-02-22 06:19:24 +03:00
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*
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1999-11-06 06:40:37 +03:00
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* The Original Code is mozilla.org code.
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*
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2004-04-18 18:30:37 +04:00
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* The Initial Developer of the Original Code is
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2001-09-29 00:14:13 +04:00
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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1999-11-06 06:40:37 +03:00
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*
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2001-09-29 00:14:13 +04:00
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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2004-04-18 18:30:37 +04:00
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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2001-09-29 00:14:13 +04:00
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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2004-04-18 18:30:37 +04:00
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* use your version of this file under the terms of the MPL, indicate your
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2001-09-29 00:14:13 +04:00
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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2004-04-18 18:30:37 +04:00
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* the terms of any one of the MPL, the GPL or the LGPL.
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2001-09-29 00:14:13 +04:00
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*
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* ***** END LICENSE BLOCK ***** */
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2000-04-12 07:04:11 +04:00
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#include "nsCOMPtr.h"
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#include "nsLayoutAtoms.h"
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1999-02-19 03:21:22 +03:00
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#include "nsFrameTraversal.h"
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#include "nsFrameList.h"
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2001-09-06 02:52:18 +04:00
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#include "nsPlaceholderFrame.h"
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1999-02-19 03:21:22 +03:00
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1999-02-23 11:10:24 +03:00
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class nsFrameIterator: public nsIBidirectionalEnumerator
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1999-02-19 03:21:22 +03:00
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{
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public:
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NS_DECL_ISUPPORTS
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1999-02-20 02:47:36 +03:00
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NS_IMETHOD First();
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1999-02-19 03:21:22 +03:00
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1999-02-20 02:47:36 +03:00
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NS_IMETHOD Last();
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1999-02-19 03:21:22 +03:00
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1999-02-20 02:47:36 +03:00
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NS_IMETHOD Next()=0;
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1999-02-19 03:21:22 +03:00
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1999-02-20 02:47:36 +03:00
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NS_IMETHOD Prev()=0;
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1999-02-19 03:21:22 +03:00
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1999-02-20 02:47:36 +03:00
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NS_IMETHOD CurrentItem(nsISupports **aItem);
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1999-02-19 03:21:22 +03:00
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1999-02-20 02:47:36 +03:00
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NS_IMETHOD IsDone();//what does this mean??off edge? yes
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1999-02-19 03:21:22 +03:00
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nsFrameIterator();
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1999-10-09 00:41:19 +04:00
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1999-02-19 03:21:22 +03:00
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protected:
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void setCurrent(nsIFrame *aFrame){mCurrent = aFrame;}
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nsIFrame *getCurrent(){return mCurrent;}
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void setStart(nsIFrame *aFrame){mStart = aFrame;}
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nsIFrame *getStart(){return mStart;}
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nsIFrame *getLast(){return mLast;}
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void setLast(nsIFrame *aFrame){mLast = aFrame;}
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PRInt8 getOffEdge(){return mOffEdge;}
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void setOffEdge(PRInt8 aOffEdge){mOffEdge = aOffEdge;}
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private:
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nsIFrame *mStart;
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nsIFrame *mCurrent;
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nsIFrame *mLast; //the last one that was in current;
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PRInt8 mOffEdge; //0= no -1 to far prev, 1 to far next;
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};
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/*
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class nsFastFrameIterator: public nsFrameIterator
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{
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nsFastFrameIterator(nsIFrame *start);
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private :
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virtual nsresult Next();
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virtual nsresult Prev();
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}
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*/
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class nsLeafIterator: public nsFrameIterator
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{
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public:
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2004-08-01 03:15:21 +04:00
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nsLeafIterator(nsPresContext* aPresContext, nsIFrame *start);
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2000-04-05 03:55:31 +04:00
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void SetExtensive(PRBool aExtensive) {mExtensive = aExtensive;}
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PRBool GetExtensive(){return mExtensive;}
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2002-04-16 06:42:09 +04:00
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void SetLockInScrollView(PRBool aLockScroll){mLockScroll = aLockScroll;}
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1999-02-19 03:21:22 +03:00
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private :
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1999-02-20 02:47:36 +03:00
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NS_IMETHOD Next();
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1999-02-19 03:21:22 +03:00
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1999-02-20 02:47:36 +03:00
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NS_IMETHOD Prev();
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1999-02-19 03:21:22 +03:00
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2004-08-01 03:15:21 +04:00
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nsPresContext* mPresContext;
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2001-08-14 04:46:32 +04:00
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PRPackedBool mExtensive;
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2002-04-16 06:42:09 +04:00
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PRBool mLockScroll;
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2001-09-06 02:52:18 +04:00
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};
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class nsFocusIterator : public nsFrameIterator
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{
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public:
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2004-08-01 03:15:21 +04:00
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nsFocusIterator(nsPresContext* aPresContext, nsIFrame* aStart);
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2001-09-06 02:52:18 +04:00
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private:
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NS_IMETHOD Next();
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NS_IMETHOD Prev();
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NS_IMETHOD Last();
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/*
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Our own versions of the standard frame tree navigation
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methods, which apply the following rules for placeholder
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frames:
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- If a frame HAS a placeholder frame, getting its parent
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gets the placeholder's parent.
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- If a frame's first child or next/prev sibling IS a
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placeholder frame, then we instead return the real frame.
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- If a frame HAS a placeholder frame, getting its next/prev
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sibling gets the placeholder frame's next/prev sibling.
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These are all applied recursively to support multiple levels of
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placeholders.
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*/
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nsIFrame* GetParentFrame(nsIFrame* aFrame);
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nsIFrame* GetFirstChild(nsIFrame* aFrame);
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nsIFrame* GetNextSibling(nsIFrame* aFrame);
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nsIFrame* GetPrevSibling(nsIFrame* aFrame);
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nsIFrame* GetPlaceholderFrame(nsIFrame* aFrame);
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2001-09-18 06:25:07 +04:00
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PRBool IsPopupFrame(nsIFrame* aFrame);
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2001-09-06 02:52:18 +04:00
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2004-08-01 03:15:21 +04:00
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nsPresContext* mPresContext;
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1999-02-19 03:21:22 +03:00
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};
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2001-03-21 04:16:22 +03:00
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#ifdef IBMBIDI // Simon
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class nsVisualIterator: public nsFrameIterator
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{
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public:
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2004-08-01 03:15:21 +04:00
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nsVisualIterator(nsPresContext* aPresContext, nsIFrame *start);
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2001-03-21 04:16:22 +03:00
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private :
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NS_IMETHOD Next();
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NS_IMETHOD Prev();
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2004-08-01 03:15:21 +04:00
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nsPresContext* mPresContext;
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2001-03-21 04:16:22 +03:00
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};
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#endif
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1999-02-19 03:21:22 +03:00
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/************IMPLEMENTATIONS**************/
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2001-02-20 00:50:04 +03:00
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nsresult NS_CreateFrameTraversal(nsIFrameTraversal** aResult)
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{
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NS_ENSURE_ARG_POINTER(aResult);
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*aResult = nsnull;
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nsCOMPtr<nsIFrameTraversal> t(new nsFrameTraversal());
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if (!t)
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return NS_ERROR_OUT_OF_MEMORY;
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*aResult = t;
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NS_ADDREF(*aResult);
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return NS_OK;
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}
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1999-02-19 03:21:22 +03:00
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nsresult
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2000-01-22 04:16:50 +03:00
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NS_NewFrameTraversal(nsIBidirectionalEnumerator **aEnumerator,
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nsTraversalType aType,
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2004-08-01 03:15:21 +04:00
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nsPresContext* aPresContext,
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2002-04-16 06:42:09 +04:00
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nsIFrame *aStart,
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PRBool aLockInScrollView)
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1999-02-19 03:21:22 +03:00
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{
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if (!aEnumerator || !aStart)
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return NS_ERROR_NULL_POINTER;
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switch(aType)
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{
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case LEAF: {
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2000-01-22 04:16:50 +03:00
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nsLeafIterator *trav = new nsLeafIterator(aPresContext, aStart);
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1999-02-19 03:21:22 +03:00
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if (!trav)
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return NS_ERROR_OUT_OF_MEMORY;
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2002-04-16 06:42:09 +04:00
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trav->SetLockInScrollView(aLockInScrollView);
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1999-02-23 11:10:24 +03:00
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*aEnumerator = NS_STATIC_CAST(nsIBidirectionalEnumerator*, trav);
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1999-02-19 03:21:22 +03:00
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NS_ADDREF(trav);
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2000-04-05 03:55:31 +04:00
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trav->SetExtensive(PR_FALSE);
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2001-08-14 04:46:32 +04:00
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}
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break;
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1999-02-19 03:21:22 +03:00
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case EXTENSIVE:{
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2000-04-05 03:55:31 +04:00
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nsLeafIterator *trav = new nsLeafIterator(aPresContext, aStart);
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1999-02-19 03:21:22 +03:00
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if (!trav)
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2000-04-05 03:55:31 +04:00
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return NS_ERROR_OUT_OF_MEMORY;
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1999-02-23 11:10:24 +03:00
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*aEnumerator = NS_STATIC_CAST(nsIBidirectionalEnumerator*, trav);
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1999-02-19 03:21:22 +03:00
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NS_ADDREF(trav);
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2000-04-05 03:55:31 +04:00
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trav->SetExtensive(PR_TRUE);
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2001-08-14 04:46:32 +04:00
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}
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break;
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2001-09-06 02:52:18 +04:00
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case FOCUS: {
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nsFocusIterator *trav = new nsFocusIterator(aPresContext, aStart);
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2001-08-14 04:46:32 +04:00
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if (!trav)
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return NS_ERROR_OUT_OF_MEMORY;
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*aEnumerator = NS_STATIC_CAST(nsIBidirectionalEnumerator*, trav);
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NS_ADDREF(trav);
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}
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break;
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2001-03-21 04:16:22 +03:00
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#ifdef IBMBIDI
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case VISUAL:{
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nsVisualIterator *trav = new nsVisualIterator(aPresContext, aStart);
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if (!trav)
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return NS_ERROR_OUT_OF_MEMORY;
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*aEnumerator = NS_STATIC_CAST(nsIBidirectionalEnumerator*, trav);
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NS_ADDREF(trav);
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}
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break;
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#endif
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2000-04-05 03:55:31 +04:00
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#if 0
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1999-02-19 03:21:22 +03:00
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case FASTEST:{
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nsFastestTraversal *trav = new nsFastestTraversal(aStart);
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if (!trav)
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return NS_ERROR_NOMEMORY;
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1999-02-23 11:10:24 +03:00
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*aEnumerator = NS_STATIC_CAST(nsIBidirectionalEnumerator*, trav);
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1999-02-19 03:21:22 +03:00
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NS_ADDREF(trav);
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}
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#endif
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default:
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return NS_ERROR_NOT_IMPLEMENTED;
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break;
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}
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return NS_OK;
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}
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2001-02-20 00:50:04 +03:00
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nsFrameTraversal::nsFrameTraversal()
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{
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}
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nsFrameTraversal::~nsFrameTraversal()
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{
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}
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2003-09-08 02:37:27 +04:00
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NS_IMPL_ISUPPORTS1(nsFrameTraversal,nsIFrameTraversal)
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2001-02-20 00:50:04 +03:00
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NS_IMETHODIMP
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nsFrameTraversal::NewFrameTraversal(nsIBidirectionalEnumerator **aEnumerator,
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PRUint32 aType,
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2004-08-01 03:15:21 +04:00
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nsPresContext* aPresContext,
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2001-02-20 00:50:04 +03:00
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nsIFrame *aStart)
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{
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return NS_NewFrameTraversal(aEnumerator, NS_STATIC_CAST(nsTraversalType,
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aType),
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2002-04-16 06:42:09 +04:00
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aPresContext, aStart,PR_FALSE);
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2001-02-20 00:50:04 +03:00
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}
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1999-02-19 03:21:22 +03:00
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/*********nsFrameIterator************/
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2000-01-29 22:59:53 +03:00
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NS_IMPL_ISUPPORTS2(nsFrameIterator, nsIEnumerator, nsIBidirectionalEnumerator)
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1999-02-19 03:21:22 +03:00
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nsFrameIterator::nsFrameIterator()
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{
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mOffEdge = 0;
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mLast = nsnull;
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mCurrent = nsnull;
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mStart = nsnull;
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}
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1999-02-20 02:47:36 +03:00
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NS_IMETHODIMP
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1999-02-19 03:21:22 +03:00
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nsFrameIterator::CurrentItem(nsISupports **aItem)
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{
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if (!aItem)
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return NS_ERROR_NULL_POINTER;
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*aItem = mCurrent;
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1999-03-03 04:51:21 +03:00
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if (mOffEdge)
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1999-10-28 07:16:48 +04:00
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return NS_ENUMERATOR_FALSE;
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1999-02-19 03:21:22 +03:00
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return NS_OK;
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}
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1999-02-20 02:47:36 +03:00
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NS_IMETHODIMP
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1999-02-19 03:21:22 +03:00
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nsFrameIterator::IsDone()//what does this mean??off edge? yes
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{
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if (mOffEdge != 0)
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return NS_OK;
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1999-10-28 07:16:48 +04:00
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return NS_ENUMERATOR_FALSE;
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1999-02-19 03:21:22 +03:00
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}
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1999-02-20 02:47:36 +03:00
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NS_IMETHODIMP
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1999-02-19 03:21:22 +03:00
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nsFrameIterator::First()
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{
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mCurrent = mStart;
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return NS_OK;
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|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
1999-02-20 02:47:36 +03:00
|
|
|
NS_IMETHODIMP
|
1999-02-19 03:21:22 +03:00
|
|
|
nsFrameIterator::Last()
|
|
|
|
{
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*********LEAFITERATOR**********/
|
|
|
|
|
|
|
|
|
2004-08-01 03:15:21 +04:00
|
|
|
nsLeafIterator::nsLeafIterator(nsPresContext* aPresContext, nsIFrame *aStart)
|
2000-01-22 04:16:50 +03:00
|
|
|
: mPresContext(aPresContext)
|
1999-02-19 03:21:22 +03:00
|
|
|
{
|
|
|
|
setStart(aStart);
|
|
|
|
setCurrent(aStart);
|
|
|
|
setLast(aStart);
|
2002-04-16 06:42:09 +04:00
|
|
|
SetLockInScrollView(PR_FALSE);
|
1999-02-19 03:21:22 +03:00
|
|
|
}
|
|
|
|
|
2000-04-19 06:13:43 +04:00
|
|
|
static PRBool
|
|
|
|
IsRootFrame(nsIFrame* aFrame)
|
|
|
|
{
|
2003-10-31 23:19:18 +03:00
|
|
|
nsIAtom* atom = aFrame->GetType();
|
|
|
|
return (atom == nsLayoutAtoms::canvasFrame) ||
|
|
|
|
(atom == nsLayoutAtoms::rootFrame);
|
2000-04-19 06:13:43 +04:00
|
|
|
}
|
1999-02-19 03:21:22 +03:00
|
|
|
|
1999-02-20 02:47:36 +03:00
|
|
|
NS_IMETHODIMP
|
1999-02-19 03:21:22 +03:00
|
|
|
nsLeafIterator::Next()
|
|
|
|
{
|
|
|
|
//recursive-oid method to get next frame
|
2000-04-12 07:04:11 +04:00
|
|
|
nsIFrame *result = nsnull;
|
1999-02-19 03:21:22 +03:00
|
|
|
nsIFrame *parent = getCurrent();
|
|
|
|
if (!parent)
|
|
|
|
parent = getLast();
|
2001-09-06 02:52:18 +04:00
|
|
|
if (!mExtensive)
|
1999-02-19 03:21:22 +03:00
|
|
|
{
|
2004-01-09 17:20:53 +03:00
|
|
|
while (nsnull != (result = parent->GetFirstChild(nsnull)))
|
2000-04-05 03:55:31 +04:00
|
|
|
{
|
|
|
|
parent = result;
|
|
|
|
}
|
1999-02-19 03:21:22 +03:00
|
|
|
}
|
|
|
|
if (parent != getCurrent())
|
|
|
|
{
|
|
|
|
result = parent;
|
|
|
|
}
|
|
|
|
else {
|
2000-04-19 06:13:43 +04:00
|
|
|
while(parent && !IsRootFrame(parent)) {
|
2003-07-02 14:30:00 +04:00
|
|
|
result = parent->GetNextSibling();
|
|
|
|
if (result) {
|
|
|
|
parent = result;
|
2004-01-09 17:20:53 +03:00
|
|
|
while (nsnull != (result = parent->GetFirstChild(nsnull)))
|
2003-07-02 14:30:00 +04:00
|
|
|
{
|
|
|
|
parent = result;
|
|
|
|
}
|
|
|
|
result = parent;
|
1999-02-19 03:21:22 +03:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
else
|
2000-04-19 06:13:43 +04:00
|
|
|
{
|
2003-07-02 14:30:00 +04:00
|
|
|
result = parent->GetParent();
|
2000-04-19 06:13:43 +04:00
|
|
|
if (!result || IsRootFrame(result)) {
|
1999-02-19 03:21:22 +03:00
|
|
|
result = nsnull;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
else
|
2000-04-05 03:55:31 +04:00
|
|
|
{
|
1999-02-19 03:21:22 +03:00
|
|
|
parent = result;
|
2002-04-16 06:42:09 +04:00
|
|
|
// check if FrameType of result is TextInputFrame
|
|
|
|
if (mLockScroll) //lock the traversal when we hit a scroll frame
|
|
|
|
{
|
2003-10-31 23:19:18 +03:00
|
|
|
if ( result->GetType() == nsLayoutAtoms::scrollFrame )
|
|
|
|
return NS_ERROR_FAILURE;
|
2002-04-16 06:42:09 +04:00
|
|
|
}
|
2001-09-06 02:52:18 +04:00
|
|
|
if (mExtensive)
|
2000-04-05 03:55:31 +04:00
|
|
|
break;
|
2002-04-16 06:42:09 +04:00
|
|
|
}
|
2000-04-19 06:13:43 +04:00
|
|
|
}
|
1999-02-19 03:21:22 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
setCurrent(result);
|
|
|
|
if (!result)
|
|
|
|
setOffEdge(1);
|
1999-03-03 04:51:21 +03:00
|
|
|
return NS_OK;
|
1999-02-19 03:21:22 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1999-02-20 02:47:36 +03:00
|
|
|
NS_IMETHODIMP
|
1999-02-19 03:21:22 +03:00
|
|
|
nsLeafIterator::Prev()
|
|
|
|
{
|
|
|
|
//recursive-oid method to get prev frame
|
2004-01-10 00:45:24 +03:00
|
|
|
nsIFrame *result = nsnull;
|
1999-02-19 03:21:22 +03:00
|
|
|
nsIFrame *parent = getCurrent();
|
|
|
|
if (!parent)
|
1999-03-03 04:51:21 +03:00
|
|
|
parent = getLast();
|
2002-04-16 06:42:09 +04:00
|
|
|
|
2003-07-02 14:30:00 +04:00
|
|
|
while (parent){
|
|
|
|
nsIFrame *grandParent = parent->GetParent();
|
|
|
|
if (grandParent)
|
2002-04-16 06:42:09 +04:00
|
|
|
{
|
|
|
|
// check if FrameType of grandParent is TextInputFrame
|
|
|
|
if (mLockScroll) //lock the traversal when we hit a scroll frame
|
|
|
|
{
|
2003-10-31 23:19:18 +03:00
|
|
|
nsIAtom* atom = grandParent->GetType();
|
2002-04-16 06:42:09 +04:00
|
|
|
#ifdef DEBUG_skamio
|
2003-10-31 23:19:18 +03:00
|
|
|
if ( atom )
|
|
|
|
{
|
2002-04-16 06:42:09 +04:00
|
|
|
nsAutoString aString;
|
|
|
|
res = atom->ToString(aString);
|
|
|
|
if ( NS_SUCCEEDED(res) ) {
|
|
|
|
printf("%s:%d\n", __FILE__, __LINE__);
|
|
|
|
printf("FrameType: %s\n", NS_ConvertUCS2toUTF8(aString).get());
|
|
|
|
}
|
|
|
|
}
|
2003-10-31 23:19:18 +03:00
|
|
|
#endif
|
|
|
|
if ( atom == nsLayoutAtoms::scrollFrame )
|
|
|
|
return NS_ERROR_FAILURE;
|
2002-04-16 06:42:09 +04:00
|
|
|
}
|
2004-01-09 17:20:53 +03:00
|
|
|
result = grandParent->GetFirstChild(nsnull);
|
|
|
|
nsFrameList list(result);
|
|
|
|
result = list.GetPrevSiblingFor(parent);
|
|
|
|
if (result)
|
2002-04-16 06:42:09 +04:00
|
|
|
{
|
2004-01-09 17:20:53 +03:00
|
|
|
parent = result;
|
|
|
|
while (nsnull != (result = parent->GetFirstChild(nsnull)))
|
2002-04-16 06:42:09 +04:00
|
|
|
{
|
1999-03-03 04:51:21 +03:00
|
|
|
parent = result;
|
2004-01-09 17:20:53 +03:00
|
|
|
while ((result = parent->GetNextSibling()) != nsnull)
|
2002-04-16 06:42:09 +04:00
|
|
|
{
|
1999-03-03 04:51:21 +03:00
|
|
|
parent = result;
|
|
|
|
}
|
|
|
|
}
|
2004-01-09 17:20:53 +03:00
|
|
|
result = parent;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
else if (!(result = parent->GetParent()))
|
|
|
|
{
|
|
|
|
result = nsnull;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
parent = result;
|
|
|
|
if (mExtensive)
|
1999-03-03 04:51:21 +03:00
|
|
|
break;
|
2000-04-05 03:55:31 +04:00
|
|
|
}
|
1999-03-03 04:51:21 +03:00
|
|
|
}
|
2002-04-16 06:42:09 +04:00
|
|
|
else
|
|
|
|
{
|
1999-03-03 04:51:21 +03:00
|
|
|
setLast(parent);
|
|
|
|
result = nsnull;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1999-02-19 03:21:22 +03:00
|
|
|
setCurrent(result);
|
|
|
|
if (!result)
|
|
|
|
setOffEdge(-1);
|
1999-03-03 04:51:21 +03:00
|
|
|
return NS_OK;
|
1999-02-19 03:21:22 +03:00
|
|
|
}
|
2001-03-21 04:16:22 +03:00
|
|
|
|
2004-08-01 03:15:21 +04:00
|
|
|
nsFocusIterator::nsFocusIterator(nsPresContext* aPresContext, nsIFrame* aStart)
|
2001-09-06 02:52:18 +04:00
|
|
|
: mPresContext(aPresContext)
|
|
|
|
{
|
|
|
|
nsIFrame* start = aStart;
|
|
|
|
if (aStart)
|
2005-04-14 19:30:35 +04:00
|
|
|
start = nsPlaceholderFrame::GetRealFrameFor(aStart);
|
2001-09-06 02:52:18 +04:00
|
|
|
|
|
|
|
setStart(start);
|
|
|
|
setCurrent(start);
|
|
|
|
setLast(start);
|
|
|
|
}
|
|
|
|
|
|
|
|
nsIFrame*
|
|
|
|
nsFocusIterator::GetPlaceholderFrame(nsIFrame* aFrame)
|
|
|
|
{
|
|
|
|
nsIFrame* result = aFrame;
|
2003-12-21 08:36:36 +03:00
|
|
|
nsIPresShell *presShell = mPresContext->GetPresShell();
|
2001-09-06 02:52:18 +04:00
|
|
|
if (presShell) {
|
|
|
|
nsIFrame* placeholder = 0;
|
|
|
|
presShell->GetPlaceholderFrameFor(aFrame, &placeholder);
|
|
|
|
if (placeholder)
|
|
|
|
result = placeholder;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (result != aFrame)
|
|
|
|
result = GetPlaceholderFrame(result);
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2001-09-18 06:25:07 +04:00
|
|
|
PRBool
|
|
|
|
nsFocusIterator::IsPopupFrame(nsIFrame* aFrame)
|
|
|
|
{
|
2003-05-15 07:42:21 +04:00
|
|
|
return (aFrame->GetStyleDisplay()->mDisplay == NS_STYLE_DISPLAY_POPUP);
|
2001-09-18 06:25:07 +04:00
|
|
|
}
|
|
|
|
|
2001-09-06 02:52:18 +04:00
|
|
|
nsIFrame*
|
|
|
|
nsFocusIterator::GetParentFrame(nsIFrame* aFrame)
|
|
|
|
{
|
|
|
|
nsIFrame* placeholder = GetPlaceholderFrame(aFrame);
|
|
|
|
if (placeholder)
|
2003-07-02 14:30:00 +04:00
|
|
|
return placeholder->GetParent();
|
2001-09-06 02:52:18 +04:00
|
|
|
|
2003-07-02 14:30:00 +04:00
|
|
|
return nsnull;
|
2001-09-06 02:52:18 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
nsIFrame*
|
|
|
|
nsFocusIterator::GetFirstChild(nsIFrame* aFrame)
|
|
|
|
{
|
2004-01-09 17:20:53 +03:00
|
|
|
nsIFrame* result = aFrame->GetFirstChild(nsnull);
|
2001-09-06 02:52:18 +04:00
|
|
|
if (result)
|
2005-04-14 19:30:35 +04:00
|
|
|
result = nsPlaceholderFrame::GetRealFrameFor(result);
|
2001-09-06 02:52:18 +04:00
|
|
|
|
2001-09-18 06:25:07 +04:00
|
|
|
if (result && IsPopupFrame(result))
|
|
|
|
result = GetNextSibling(result);
|
|
|
|
|
2001-09-06 02:52:18 +04:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
nsIFrame*
|
|
|
|
nsFocusIterator::GetNextSibling(nsIFrame* aFrame)
|
|
|
|
{
|
2003-07-02 14:30:00 +04:00
|
|
|
nsIFrame* result = nsnull;
|
2001-09-06 02:52:18 +04:00
|
|
|
nsIFrame* placeholder = GetPlaceholderFrame(aFrame);
|
|
|
|
if (placeholder) {
|
2003-07-02 14:30:00 +04:00
|
|
|
result = placeholder->GetNextSibling();
|
2001-09-06 02:52:18 +04:00
|
|
|
if (result)
|
2005-04-14 19:30:35 +04:00
|
|
|
result = nsPlaceholderFrame::GetRealFrameFor(result);
|
2001-09-06 02:52:18 +04:00
|
|
|
}
|
|
|
|
|
2001-09-18 06:25:07 +04:00
|
|
|
if (result && IsPopupFrame(result))
|
|
|
|
result = GetNextSibling(result);
|
|
|
|
|
2001-09-06 02:52:18 +04:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
nsIFrame*
|
|
|
|
nsFocusIterator::GetPrevSibling(nsIFrame* aFrame)
|
|
|
|
{
|
|
|
|
nsIFrame* result = 0;
|
|
|
|
nsIFrame* placeholder = GetPlaceholderFrame(aFrame);
|
|
|
|
if (placeholder) {
|
|
|
|
nsIFrame* parent = GetParentFrame(placeholder);
|
|
|
|
if (parent) {
|
2004-01-09 17:20:53 +03:00
|
|
|
nsFrameList list(parent->GetFirstChild(nsnull));
|
2001-09-06 02:52:18 +04:00
|
|
|
result = list.GetPrevSiblingFor(placeholder);
|
2005-04-14 19:30:35 +04:00
|
|
|
result = nsPlaceholderFrame::GetRealFrameFor(result);
|
2001-09-06 02:52:18 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-09-18 06:25:07 +04:00
|
|
|
if (result && IsPopupFrame(result))
|
|
|
|
result = GetPrevSibling(result);
|
|
|
|
|
2001-09-06 02:52:18 +04:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsFocusIterator::Next()
|
|
|
|
{
|
|
|
|
nsIFrame* result = 0;
|
|
|
|
nsIFrame* parent = getCurrent();
|
|
|
|
if (!parent)
|
|
|
|
parent = getLast();
|
|
|
|
|
|
|
|
if ((result = GetFirstChild(parent)))
|
|
|
|
parent = result;
|
|
|
|
|
|
|
|
result = parent;
|
|
|
|
if (result == getCurrent()) {
|
|
|
|
while (result && !IsRootFrame(result)) {
|
|
|
|
if ((parent = GetNextSibling(result))) {
|
|
|
|
result = parent;
|
|
|
|
break;
|
|
|
|
} else {
|
|
|
|
parent = result;
|
|
|
|
result = GetParentFrame(parent);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!result || IsRootFrame(result)) {
|
|
|
|
result = 0;
|
|
|
|
setLast(parent);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
setCurrent(result);
|
|
|
|
if (!result)
|
|
|
|
setOffEdge(1);
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsFocusIterator::Prev()
|
|
|
|
{
|
2004-01-10 00:45:24 +03:00
|
|
|
nsIFrame *result = nsnull;
|
2001-09-06 02:52:18 +04:00
|
|
|
nsIFrame *parent = getCurrent();
|
|
|
|
if (!parent)
|
|
|
|
parent = getLast();
|
|
|
|
if (parent) {
|
|
|
|
if ((result = GetPrevSibling(parent))) {
|
|
|
|
parent = result;
|
|
|
|
while ((result = GetFirstChild(parent))) {
|
|
|
|
parent = result;
|
|
|
|
while ((result = GetNextSibling(parent)))
|
|
|
|
parent = result;
|
|
|
|
}
|
|
|
|
result = parent;
|
|
|
|
} else if (!(result = GetParentFrame(parent))) {
|
|
|
|
result = 0;
|
|
|
|
setLast(parent);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
setCurrent(result);
|
|
|
|
if (!result)
|
|
|
|
setOffEdge(-1);
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsFocusIterator::Last()
|
|
|
|
{
|
|
|
|
nsIFrame* result;
|
|
|
|
nsIFrame* parent = getCurrent();
|
|
|
|
while (!IsRootFrame(parent) && (result = GetParentFrame(parent)))
|
|
|
|
parent = result;
|
|
|
|
|
|
|
|
while ((result = GetFirstChild(parent))) {
|
|
|
|
parent = result;
|
|
|
|
while ((result = GetNextSibling(parent)))
|
|
|
|
parent = result;
|
|
|
|
}
|
|
|
|
|
|
|
|
setCurrent(parent);
|
|
|
|
if (!parent)
|
|
|
|
setOffEdge(1);
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
2001-03-21 04:16:22 +03:00
|
|
|
#ifdef IBMBIDI
|
|
|
|
|
|
|
|
/*********VISUALITERATOR**********/
|
|
|
|
|
2004-08-01 03:15:21 +04:00
|
|
|
nsVisualIterator::nsVisualIterator(nsPresContext* aPresContext, nsIFrame *aStart)
|
2001-03-21 04:16:22 +03:00
|
|
|
: mPresContext(aPresContext)
|
|
|
|
{
|
|
|
|
setStart(aStart);
|
|
|
|
setCurrent(aStart);
|
|
|
|
setLast(aStart);
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsVisualIterator::Next()
|
|
|
|
{
|
|
|
|
//recursive-oid method to get next frame
|
|
|
|
nsIFrame *result = nsnull;
|
|
|
|
nsIFrame *parent = getCurrent();
|
|
|
|
if (!parent)
|
|
|
|
parent = getLast();
|
2004-01-09 17:20:53 +03:00
|
|
|
while (nsnull != (result = parent->GetFirstChild(nsnull)))
|
2001-03-21 04:16:22 +03:00
|
|
|
{
|
|
|
|
parent = result;
|
|
|
|
}
|
|
|
|
if (parent != getCurrent())
|
|
|
|
{
|
|
|
|
result = parent;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
while(parent && !IsRootFrame(parent)) {
|
2003-07-02 14:30:00 +04:00
|
|
|
nsIFrame *grandParent = parent->GetParent();
|
2004-01-09 17:20:53 +03:00
|
|
|
if (grandParent) {
|
|
|
|
nsFrameList list(grandParent->GetFirstChild(nsnull));
|
2001-03-21 04:16:22 +03:00
|
|
|
result = list.GetNextVisualFor(parent);
|
|
|
|
if (result){
|
|
|
|
parent = result;
|
2004-01-09 17:20:53 +03:00
|
|
|
while (nsnull != (result = parent->GetFirstChild(nsnull))) {
|
2001-03-21 04:16:22 +03:00
|
|
|
parent = result;
|
|
|
|
}
|
|
|
|
result = parent;
|
|
|
|
break;
|
|
|
|
}
|
2003-07-02 14:30:00 +04:00
|
|
|
else if (!(result = parent->GetParent()) || IsRootFrame(result)) {
|
2001-03-21 04:16:22 +03:00
|
|
|
result = nsnull;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
parent = result;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
setLast(parent);
|
|
|
|
result = nsnull;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
setCurrent(result);
|
|
|
|
if (!result)
|
|
|
|
setOffEdge(-1);
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsVisualIterator::Prev()
|
|
|
|
{
|
|
|
|
//recursive-oid method to get prev frame
|
2004-01-10 00:45:24 +03:00
|
|
|
nsIFrame *result = nsnull;
|
2001-03-21 04:16:22 +03:00
|
|
|
nsIFrame *parent = getCurrent();
|
|
|
|
if (!parent)
|
|
|
|
parent = getLast();
|
|
|
|
while(parent){
|
2003-07-02 14:30:00 +04:00
|
|
|
nsIFrame *grandParent = parent->GetParent();
|
2004-01-09 17:20:53 +03:00
|
|
|
if (grandParent) {
|
|
|
|
nsFrameList list(grandParent->GetFirstChild(nsnull));
|
2001-03-21 04:16:22 +03:00
|
|
|
result = list.GetPrevVisualFor(parent);
|
|
|
|
if (result){
|
|
|
|
parent = result;
|
2004-01-09 17:20:53 +03:00
|
|
|
while (nsnull != (result = parent->GetFirstChild(nsnull))) {
|
2001-03-21 04:16:22 +03:00
|
|
|
parent = result;
|
2003-07-02 14:30:00 +04:00
|
|
|
while ((result = parent->GetNextSibling()) != nsnull) {
|
2001-03-21 04:16:22 +03:00
|
|
|
parent = result;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
result = parent;
|
|
|
|
break;
|
|
|
|
}
|
2003-07-12 01:00:26 +04:00
|
|
|
else if (!(result = parent->GetParent())) {
|
2001-03-21 04:16:22 +03:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
parent = result;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
setLast(parent);
|
|
|
|
result = nsnull;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
setCurrent(result);
|
|
|
|
if (!result)
|
|
|
|
setOffEdge(-1);
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
#endif
|