f53f98f7f3
frames or two views. Use this to fix the auto-positioning of abs pos boxes to work no matter how their containing block and the block their placeholder lives in are related, and convert various other callers to the new API. Bug 266968, r+sr=roc git-svn-id: svn://10.0.0.236/trunk@164857 18797224-902f-48f8-a5cc-f745e15eee43
7409 lines
216 KiB
C++
7409 lines
216 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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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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*
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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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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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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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*
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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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* 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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* 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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* use your version of this file under the terms of the MPL, indicate your
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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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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* Implementation of selection: nsISelection,nsISelectionPrivate and nsIFrameSelection
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*/
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#include "nsCOMPtr.h"
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#include "nsWeakReference.h"
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#include "nsIFactory.h"
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#include "nsIEnumerator.h"
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsIDOMRange.h"
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#include "nsIFrameSelection.h"
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#include "nsISelection.h"
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#include "nsISelectionPrivate.h"
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#include "nsISelectionListener.h"
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#include "nsIComponentManager.h"
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#include "nsContentCID.h"
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#include "nsIContent.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMNode.h"
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#include "nsRange.h"
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#include "nsCOMArray.h"
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#include "nsGUIEvent.h"
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#include "nsIDOMKeyEvent.h"
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#include "nsITableLayout.h"
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#include "nsITableCellLayout.h"
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#include "nsIDOMNodeList.h"
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#include "nsITextContent.h"
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#include "nsISelectionListener.h"
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#include "nsIContentIterator.h"
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#include "nsIDocumentEncoder.h"
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// for IBMBIDI
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#include "nsFrameTraversal.h"
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#include "nsILineIterator.h"
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#include "nsLayoutAtoms.h"
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#include "nsIFrameTraversal.h"
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#include "nsLayoutUtils.h"
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#include "nsLayoutCID.h"
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static NS_DEFINE_CID(kFrameTraversalCID, NS_FRAMETRAVERSAL_CID);
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#include "nsIDOMText.h"
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#include "nsContentUtils.h"
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//included for desired x position;
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#include "nsPresContext.h"
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#include "nsIPresShell.h"
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#include "nsICaret.h"
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// included for view scrolling
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#include "nsIViewManager.h"
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#include "nsIScrollableView.h"
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#include "nsIDeviceContext.h"
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#include "nsITimer.h"
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#include "nsIServiceManager.h"
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#include "nsIAutoCopy.h"
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#include "nsIEventQueue.h"
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#include "nsIEventQueueService.h"
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// notifications
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#include "nsIDOMDocument.h"
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#include "nsIDocument.h"
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#include "nsISelectionController.h"//for the enums
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#include "nsHTMLAtoms.h"
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#define STATUS_CHECK_RETURN_MACRO() {if (!mShell) return NS_ERROR_FAILURE;}
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//#define DEBUG_TABLE 1
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// Selection's use of generated content iterators has been turned off
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// temporarily since it bogs down selection in large documents. Using
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// generated content iterators is slower because it must resolve the style
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// for the content to find out if it has any before/after style, and it
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// increases the number of calls to GetPrimaryFrame() which is very expensive.
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//
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// We can reduce the number of calls to GetPrimaryFrame() during selection
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// by a good factor (maybe 2-3 times) if we just ignore the generated content
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// and NOT hilite it when we cross it.
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//
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// #1 the output system doesn't handle it right now anyway so selecting
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// has no REAL benefit to generated content.
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// #2 there is no available way given to me by troy that can give back the
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// necessary data without a frame to work from.
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#ifdef USE_SELECTION_GENERATED_CONTENT_ITERATOR_CODE
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static NS_DEFINE_IID(kCGenContentIteratorCID, NS_GENERATEDCONTENTITERATOR_CID);
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static NS_DEFINE_IID(kCGenSubtreeIteratorCID, NS_GENERATEDSUBTREEITERATOR_CID);
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#else
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static NS_DEFINE_IID(kCContentIteratorCID, NS_CONTENTITERATOR_CID);
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static NS_DEFINE_IID(kCSubtreeIteratorCID, NS_SUBTREEITERATOR_CID);
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#endif // USE_SELECTION_GENERATED_CONTENT_ITERATOR_CODE
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#undef OLD_SELECTION
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#undef OLD_TABLE_SELECTION
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//PROTOTYPES
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class nsSelectionIterator;
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class nsSelection;
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class nsAutoScrollTimer;
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struct nsScrollSelectionIntoViewEvent;
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PRBool IsValidSelectionPoint(nsSelection *aFrameSel, nsIContent *aContent);
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PRBool IsValidSelectionPoint(nsSelection *aFrameSel, nsIDOMNode *aDomNode);
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static nsIAtom *GetTag(nsIDOMNode *aNode);
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static nsresult ParentOffset(nsIDOMNode *aNode, nsIDOMNode **aParent, PRInt32 *aChildOffset);
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static nsIDOMNode *GetCellParent(nsIDOMNode *aDomNode);
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#ifdef PRINT_RANGE
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static void printRange(nsIDOMRange *aDomRange);
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#define DEBUG_OUT_RANGE(x) printRange(x)
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#else
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#define DEBUG_OUT_RANGE(x)
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#endif //MOZ_DEBUG
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//#define DEBUG_SELECTION // uncomment for printf describing every collapse and extend.
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//#define DEBUG_NAVIGATION
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//#define DEBUG_TABLE_SELECTION 1
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struct CachedOffsetForFrame {
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CachedOffsetForFrame()
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: mCachedFrameOffset(0, 0) // nsPoint ctor
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, mLastCaretFrame(nsnull)
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, mLastContentOffset(0)
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, mCanCacheFrameOffset(PR_FALSE)
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{}
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nsPoint mCachedFrameOffset; // cached frame offset
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nsIFrame* mLastCaretFrame; // store the frame the caret was last drawn in.
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PRInt32 mLastContentOffset; // store last content offset
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PRPackedBool mCanCacheFrameOffset; // cached frame offset is valid?
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};
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class nsTypedSelection : public nsISelection,
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public nsISelectionPrivate,
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public nsSupportsWeakReference
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{
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public:
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nsTypedSelection();
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nsTypedSelection(nsSelection *aList);
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virtual ~nsTypedSelection();
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NS_DECL_ISUPPORTS
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NS_DECL_NSISELECTION
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NS_DECL_NSISELECTIONPRIVATE
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// utility methods for scrolling the selection into view
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nsresult GetPresContext(nsPresContext **aPresContext);
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nsresult GetPresShell(nsIPresShell **aPresShell);
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nsresult GetRootScrollableView(nsIScrollableView **aScrollableView);
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nsresult GetFrameToScrolledViewOffsets(nsIScrollableView *aScrollableView, nsIFrame *aFrame, nscoord *aXOffset, nscoord *aYOffset);
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nsresult GetPointFromOffset(nsIFrame *aFrame, PRInt32 aContentOffset, nsPoint *aPoint);
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nsresult GetSelectionRegionRectAndScrollableView(SelectionRegion aRegion, nsRect *aRect, nsIScrollableView **aScrollableView);
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nsresult ScrollRectIntoView(nsIScrollableView *aScrollableView, nsRect& aRect, PRIntn aVPercent, PRIntn aHPercent, PRBool aScrollParentViews);
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nsresult PostScrollSelectionIntoViewEvent(SelectionRegion aRegion);
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NS_IMETHOD ScrollIntoView(SelectionRegion aRegion=nsISelectionController::SELECTION_FOCUS_REGION, PRBool aIsSynchronous=PR_TRUE);
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nsresult AddItem(nsIDOMRange *aRange);
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nsresult RemoveItem(nsIDOMRange *aRange);
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nsresult Clear(nsPresContext* aPresContext);
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// methods for convenience. Note, these don't addref
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nsIDOMNode* FetchAnchorNode(); //where did the selection begin
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PRInt32 FetchAnchorOffset();
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nsIDOMNode* FetchOriginalAnchorNode(); //where did the ORIGINAL selection begin
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PRInt32 FetchOriginalAnchorOffset();
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nsIDOMNode* FetchFocusNode(); //where is the carret
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PRInt32 FetchFocusOffset();
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nsIDOMNode* FetchStartParent(nsIDOMRange *aRange); //skip all the com stuff and give me the start/end
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PRInt32 FetchStartOffset(nsIDOMRange *aRange);
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nsIDOMNode* FetchEndParent(nsIDOMRange *aRange); //skip all the com stuff and give me the start/end
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PRInt32 FetchEndOffset(nsIDOMRange *aRange);
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nsDirection GetDirection(){return mDirection;}
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void SetDirection(nsDirection aDir){mDirection = aDir;}
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PRBool GetTrueDirection() {return mTrueDirection;}
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void SetTrueDirection(PRBool aBool){mTrueDirection = aBool;}
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NS_IMETHOD CopyRangeToAnchorFocus(nsIDOMRange *aRange);
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// NS_IMETHOD GetPrimaryFrameForRangeEndpoint(nsIDOMNode *aNode, PRInt32 aOffset, PRBool aIsEndNode, nsIFrame **aResultFrame);
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NS_IMETHOD GetPrimaryFrameForAnchorNode(nsIFrame **aResultFrame);
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NS_IMETHOD GetPrimaryFrameForFocusNode(nsIFrame **aResultFrame, PRInt32 *aOffset);
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NS_IMETHOD SetOriginalAnchorPoint(nsIDOMNode *aNode, PRInt32 aOffset);
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NS_IMETHOD GetOriginalAnchorPoint(nsIDOMNode **aNode, PRInt32 *aOffset);
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NS_IMETHOD LookUpSelection(nsIContent *aContent, PRInt32 aContentOffset, PRInt32 aContentLength,
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SelectionDetails **aReturnDetails, SelectionType aType, PRBool aSlowCheck);
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NS_IMETHOD Repaint(nsPresContext* aPresContext);
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nsresult StartAutoScrollTimer(nsPresContext *aPresContext, nsIView *aView, nsPoint& aPoint, PRUint32 aDelay);
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nsresult StopAutoScrollTimer();
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nsresult DoAutoScrollView(nsPresContext *aPresContext, nsIView *aView, nsPoint& aPoint, PRBool aScrollParentViews);
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nsresult ScrollPointIntoClipView(nsPresContext *aPresContext, nsIView *aView, nsPoint& aPoint, PRBool *aDidScroll);
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nsresult ScrollPointIntoView(nsPresContext *aPresContext, nsIView *aView, nsPoint& aPoint, PRBool aScrollParentViews, PRBool *aDidScroll);
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nsresult GetViewAncestorOffset(nsIView *aView, nsIView *aAncestorView, nscoord *aXOffset, nscoord *aYOffset);
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SelectionType GetType(){return mType;}
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void SetType(SelectionType aType){mType = aType;}
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nsresult NotifySelectionListeners();
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private:
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friend class nsSelectionIterator;
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friend struct nsScrollSelectionIntoViewEvent;
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void setAnchorFocusRange(PRInt32 aIndex); //pass in index into FrameSelection
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NS_IMETHOD selectFrames(nsPresContext* aPresContext, nsIContentIterator *aInnerIter, nsIContent *aContent, nsIDOMRange *aRange, nsIPresShell *aPresShell, PRBool aFlags);
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NS_IMETHOD selectFrames(nsPresContext* aPresContext, nsIDOMRange *aRange, PRBool aSelect);
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nsresult getTableCellLocationFromRange(nsIDOMRange *aRange, PRInt32 *aSelectionType, PRInt32 *aRow, PRInt32 *aCol);
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nsresult addTableCellRange(nsIDOMRange *aRange, PRBool *aDidAddRange);
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#ifdef OLD_SELECTION
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NS_IMETHOD FixupSelectionPoints(nsIDOMRange *aRange, nsDirection *aDir, PRBool *aFixupState);
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#endif //OLD_SELECTION
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nsCOMArray<nsIDOMRange> mRangeArray;
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nsCOMPtr<nsIDOMRange> mAnchorFocusRange;
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nsCOMPtr<nsIDOMRange> mOriginalAnchorRange; //used as a point with range gravity for security
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nsDirection mDirection; //FALSE = focus, anchor; TRUE = anchor, focus
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PRBool mFixupState; //was there a fixup?
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nsSelection *mFrameSelection;
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nsWeakPtr mPresShellWeak; //weak reference to presshell.
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SelectionType mType;//type of this nsTypedSelection;
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nsAutoScrollTimer *mAutoScrollTimer; // timer for autoscrolling.
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nsCOMArray<nsISelectionListener> mSelectionListeners;
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PRBool mTrueDirection;
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nsCOMPtr<nsIEventQueue> mEventQueue;
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PRBool mScrollEventPosted;
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CachedOffsetForFrame *mCachedOffsetForFrame;
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};
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// Stack-class to turn on/off selection batching for table selection
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class nsSelectionBatcher
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{
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private:
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nsCOMPtr<nsISelectionPrivate> mSelection;
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public:
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nsSelectionBatcher(nsISelectionPrivate *aSelection) : mSelection(aSelection)
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{
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if (mSelection) mSelection->StartBatchChanges();
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}
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virtual ~nsSelectionBatcher()
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{
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if (mSelection) mSelection->EndBatchChanges();
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}
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};
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class nsSelection : public nsIFrameSelection
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{
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public:
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/*interfaces for addref and release and queryinterface*/
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NS_DECL_ISUPPORTS
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/*BEGIN nsIFrameSelection interfaces*/
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NS_IMETHOD Init(nsIPresShell *aShell, nsIContent *aLimiter);
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NS_IMETHOD SetScrollableView(nsIScrollableView *aScrollView);
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NS_IMETHOD GetScrollableView(nsIScrollableView **aScrollView) {*aScrollView = mScrollView; return NS_OK;}
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NS_IMETHOD ShutDown();
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NS_IMETHOD HandleTextEvent(nsGUIEvent *aGUIEvent);
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NS_IMETHOD HandleKeyEvent(nsPresContext* aPresContext, nsGUIEvent *aGuiEvent);
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NS_IMETHOD HandleClick(nsIContent *aNewFocus, PRUint32 aContentOffset, PRUint32 aContentEndOffset,
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PRBool aContinueSelection, PRBool aMultipleSelection,PRBool aHint);
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NS_IMETHOD HandleDrag(nsPresContext *aPresContext, nsIFrame *aFrame, nsPoint& aPoint);
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NS_IMETHOD HandleTableSelection(nsIContent *aParentContent, PRInt32 aContentOffset, PRInt32 aTarget, nsMouseEvent *aMouseEvent);
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NS_IMETHOD StartAutoScrollTimer(nsPresContext *aPresContext, nsIView *aView, nsPoint& aPoint, PRUint32 aDelay);
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NS_IMETHOD StopAutoScrollTimer();
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NS_IMETHOD EnableFrameNotification(PRBool aEnable){mNotifyFrames = aEnable; return NS_OK;}
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NS_IMETHOD LookUpSelection(nsIContent *aContent, PRInt32 aContentOffset, PRInt32 aContentLength,
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SelectionDetails **aReturnDetails, PRBool aSlowCheck);
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NS_IMETHOD SetMouseDownState(PRBool aState);
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NS_IMETHOD GetMouseDownState(PRBool *aState);
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NS_IMETHOD GetTableCellSelection(PRBool *aState){if (aState){*aState = mSelectingTableCellMode != 0; return NS_OK;}return NS_ERROR_NULL_POINTER;}
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NS_IMETHOD ClearTableCellSelection(){mSelectingTableCellMode = 0; return NS_OK;}
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NS_IMETHOD GetSelection(SelectionType aType, nsISelection **aDomSelection);
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NS_IMETHOD ScrollSelectionIntoView(SelectionType aType, SelectionRegion aRegion, PRBool aIsSynchronous);
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NS_IMETHOD RepaintSelection(nsPresContext* aPresContext, SelectionType aType);
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NS_IMETHOD GetFrameForNodeOffset(nsIContent *aNode, PRInt32 aOffset, HINT aHint, nsIFrame **aReturnFrame, PRInt32 *aReturnOffset);
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NS_IMETHOD CommonPageMove(PRBool aForward, PRBool aExtend, nsIScrollableView *aScrollableView, nsIFrameSelection *aFrameSel);
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NS_IMETHOD AdjustOffsetsFromStyle(nsIFrame *aFrame, PRBool *changeSelection,
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nsIContent** outContent, PRInt32* outStartOffset, PRInt32* outEndOffset);
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NS_IMETHOD SetHint(HINT aHintRight);
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NS_IMETHOD GetHint(HINT *aHintRight);
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NS_IMETHOD CharacterMove(PRBool aForward, PRBool aExtend);
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NS_IMETHOD WordMove(PRBool aForward, PRBool aExtend);
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NS_IMETHOD LineMove(PRBool aForward, PRBool aExtend);
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NS_IMETHOD IntraLineMove(PRBool aForward, PRBool aExtend);
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NS_IMETHOD SelectAll();
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NS_IMETHOD SetDisplaySelection(PRInt16 aState);
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NS_IMETHOD GetDisplaySelection(PRInt16 *aState);
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NS_IMETHOD SetDelayCaretOverExistingSelection(PRBool aDelay);
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NS_IMETHOD GetDelayCaretOverExistingSelection(PRBool *aDelay);
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NS_IMETHOD SetDelayedCaretData(nsMouseEvent *aMouseEvent);
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NS_IMETHOD GetDelayedCaretData(nsMouseEvent **aMouseEvent);
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NS_IMETHOD GetLimiter(nsIContent **aLimiterContent);
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NS_IMETHOD SetMouseDoubleDown(PRBool aDoubleDown);
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NS_IMETHOD GetMouseDoubleDown(PRBool *aDoubleDown);
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NS_IMETHOD GetPrevNextBidiLevels(nsPresContext *aPresContext,
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nsIContent *aNode,
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PRUint32 aContentOffset,
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nsIFrame **aPrevFrame,
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nsIFrame **aNextFrame,
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PRUint8 *aPrevLevel,
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PRUint8 *aNextLevel);
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NS_IMETHOD GetFrameFromLevel(nsPresContext *aPresContext,
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nsIFrame *aFrameIn,
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nsDirection aDirection,
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PRUint8 aBidiLevel,
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nsIFrame **aFrameOut);
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NS_IMETHOD MaintainSelection();
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/*END nsIFrameSelection interfaces */
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nsSelection();
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virtual ~nsSelection();
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NS_IMETHOD StartBatchChanges();
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NS_IMETHOD EndBatchChanges();
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NS_IMETHOD DeleteFromDocument();
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nsIPresShell *GetShell() {return mShell;}
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private:
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NS_IMETHOD TakeFocus(nsIContent *aNewFocus, PRUint32 aContentOffset, PRUint32 aContentEndOffset,
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PRBool aContinueSelection, PRBool aMultipleSelection);
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void BidiLevelFromMove(nsPresContext* aContext,
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|
nsIPresShell* aPresShell,
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nsIContent *aNode,
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PRUint32 aContentOffset,
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PRUint32 aKeycode);
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void BidiLevelFromClick(nsIContent *aNewFocus, PRUint32 aContentOffset);
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#ifdef VISUALSELECTION
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NS_IMETHOD VisualSelectFrames(nsPresContext* aContext,
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nsIFrame* aCurrentFrame,
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nsPeekOffsetStruct aPos);
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NS_IMETHOD VisualSequence(nsPresContext *aPresContext,
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nsIFrame* aSelectFrame,
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nsIFrame* aCurrentFrame,
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nsPeekOffsetStruct* aPos,
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PRBool* aNeedVisualSelection);
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NS_IMETHOD SelectToEdge(nsIFrame *aFrame,
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nsIContent *aContent,
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PRInt32 aOffset,
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PRInt32 aEdge,
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PRBool aMultipleSelection);
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NS_IMETHOD SelectLines(nsPresContext *aPresContext,
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nsDirection aSelectionDirection,
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nsIDOMNode *aAnchorNode,
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nsIFrame* aAnchorFrame,
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PRInt32 aAnchorOffset,
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nsIDOMNode *aCurrentNode,
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nsIFrame* aCurrentFrame,
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PRInt32 aCurrentOffset,
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nsPeekOffsetStruct aPos);
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#endif // VISUALSELECTION
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PRBool AdjustForMaintainedSelection(nsIContent *aContent, PRInt32 aOffset);
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// post and pop reasons for notifications. we may stack these later
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|
void PostReason(PRInt16 aReason) { mSelectionChangeReason = aReason; }
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|
PRInt16 PopReason()
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|
{
|
|
PRInt16 retval = mSelectionChangeReason;
|
|
mSelectionChangeReason = 0;
|
|
return retval;
|
|
}
|
|
|
|
friend class nsTypedSelection;
|
|
#ifdef DEBUG
|
|
void printSelection(); // for debugging
|
|
#endif /* DEBUG */
|
|
|
|
void ResizeBuffer(PRUint32 aNewBufSize);
|
|
/*HELPER METHODS*/
|
|
nsresult MoveCaret(PRUint32 aKeycode, PRBool aContinue, nsSelectionAmount aAmount);
|
|
|
|
nsresult FetchDesiredX(nscoord &aDesiredX); //the x position requested by the Key Handling for up down
|
|
void InvalidateDesiredX(); //do not listen to mDesiredX you must get another.
|
|
void SetDesiredX(nscoord aX); //set the mDesiredX
|
|
|
|
nsresult GetRootForContentSubtree(nsIContent *aContent, nsIContent **aParent);
|
|
nsresult ConstrainFrameAndPointToAnchorSubtree(nsPresContext *aPresContext, nsIFrame *aFrame, nsPoint& aPoint, nsIFrame **aRetFrame, nsPoint& aRetPoint);
|
|
|
|
PRUint32 GetBatching(){return mBatching;}
|
|
PRBool GetNotifyFrames(){return mNotifyFrames;}
|
|
void SetDirty(PRBool aDirty=PR_TRUE){if (mBatching) mChangesDuringBatching = aDirty;}
|
|
|
|
nsresult NotifySelectionListeners(SelectionType aType); // add parameters to say collapsed etc?
|
|
|
|
// utility method to lookup frame style
|
|
nsresult FrameOrParentHasSpecialSelectionStyle(nsIFrame* aFrame, PRUint8 aSelectionStyle, nsIFrame* *foundFrame);
|
|
|
|
nsTypedSelection *mDomSelections[nsISelectionController::NUM_SELECTIONTYPES];
|
|
|
|
// Table selection support.
|
|
// Interfaces that let us get info based on cellmap locations
|
|
nsITableLayout* GetTableLayout(nsIContent *aTableContent);
|
|
nsITableCellLayout* GetCellLayout(nsIContent *aCellContent);
|
|
|
|
nsresult SelectBlockOfCells(nsIContent *aStartNode, nsIContent *aEndNode);
|
|
nsresult SelectRowOrColumn(nsIContent *aCellContent, PRUint32 aTarget);
|
|
nsresult GetCellIndexes(nsIContent *aCell, PRInt32 &aRowIndex, PRInt32 &aColIndex);
|
|
|
|
nsresult GetFirstSelectedCellAndRange(nsIDOMNode **aCell, nsIDOMRange **aRange);
|
|
nsresult GetNextSelectedCellAndRange(nsIDOMNode **aCell, nsIDOMRange **aRange);
|
|
nsresult GetFirstCellNodeInRange(nsIDOMRange *aRange, nsIDOMNode **aCellNode);
|
|
// aTableNode may be null if table isn't needed to be returned
|
|
PRBool IsInSameTable(nsIContent *aContent1, nsIContent *aContent2, nsIContent **aTableNode);
|
|
nsresult GetParentTable(nsIContent *aCellNode, nsIContent **aTableNode);
|
|
nsresult SelectCellElement(nsIDOMElement* aCellElement);
|
|
nsresult CreateAndAddRange(nsIDOMNode *aParentNode, PRInt32 aOffset);
|
|
nsresult ClearNormalSelection();
|
|
|
|
nsCOMPtr<nsIDOMNode> mCellParent; //used to snap to table selection
|
|
nsCOMPtr<nsIContent> mStartSelectedCell;
|
|
nsCOMPtr<nsIContent> mEndSelectedCell;
|
|
nsCOMPtr<nsIContent> mAppendStartSelectedCell;
|
|
nsCOMPtr<nsIContent> mUnselectCellOnMouseUp;
|
|
PRInt32 mSelectingTableCellMode;
|
|
PRInt32 mSelectedCellIndex;
|
|
|
|
// maintain selection
|
|
nsCOMPtr<nsIDOMRange> mMaintainRange;
|
|
|
|
//batching
|
|
PRInt32 mBatching;
|
|
|
|
nsIContent *mLimiter; //limit selection navigation to a child of this node.
|
|
nsIPresShell *mShell;
|
|
|
|
PRInt16 mSelectionChangeReason; // reason for notifications of selection changing
|
|
PRInt16 mDisplaySelection; //for visual display purposes.
|
|
|
|
HINT mHint; //hint to tell if the selection is at the end of this line or beginning of next
|
|
|
|
PRInt32 mDesiredX;
|
|
nsIScrollableView *mScrollView;
|
|
|
|
nsMouseEvent mDelayedMouseEvent;
|
|
|
|
PRPackedBool mDelayCaretOverExistingSelection;
|
|
PRPackedBool mDelayedMouseEventValid;
|
|
|
|
PRPackedBool mChangesDuringBatching;
|
|
PRPackedBool mNotifyFrames;
|
|
PRPackedBool mIsEditor;
|
|
PRPackedBool mDragSelectingCells;
|
|
PRPackedBool mMouseDownState; //for drag purposes
|
|
PRPackedBool mMouseDoubleDownState; //has the doubleclick down happened
|
|
PRPackedBool mDesiredXSet;
|
|
};
|
|
|
|
class nsSelectionIterator : public nsIBidirectionalEnumerator
|
|
{
|
|
public:
|
|
/*BEGIN nsIEnumerator interfaces
|
|
see the nsIEnumerator for more details*/
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
NS_DECL_NSIENUMERATOR
|
|
|
|
NS_DECL_NSIBIDIRECTIONALENUMERATOR
|
|
|
|
/*END nsIEnumerator interfaces*/
|
|
/*BEGIN Helper Methods*/
|
|
NS_IMETHOD CurrentItem(nsIDOMRange **aRange);
|
|
/*END Helper Methods*/
|
|
private:
|
|
friend class nsTypedSelection;
|
|
|
|
//lame lame lame if delete from document goes away then get rid of this unless its debug
|
|
friend class nsSelection;
|
|
|
|
nsSelectionIterator(nsTypedSelection *);
|
|
virtual ~nsSelectionIterator();
|
|
PRInt32 mIndex;
|
|
nsTypedSelection *mDomSelection;
|
|
SelectionType mType;
|
|
};
|
|
|
|
class nsAutoScrollTimer : public nsITimerCallback
|
|
{
|
|
public:
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
nsAutoScrollTimer()
|
|
: mSelection(0), mView(0), mPresContext(0), mPoint(0,0), mDelay(30)
|
|
{
|
|
}
|
|
|
|
virtual ~nsAutoScrollTimer()
|
|
{
|
|
if (mTimer)
|
|
mTimer->Cancel();
|
|
}
|
|
|
|
nsresult Start(nsPresContext *aPresContext, nsIView *aView, nsPoint &aPoint)
|
|
{
|
|
mView = aView;
|
|
mPresContext = aPresContext;
|
|
mPoint = aPoint;
|
|
|
|
if (!mTimer)
|
|
{
|
|
nsresult result;
|
|
mTimer = do_CreateInstance("@mozilla.org/timer;1", &result);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
}
|
|
|
|
return mTimer->InitWithCallback(this, mDelay, nsITimer::TYPE_ONE_SHOT);
|
|
}
|
|
|
|
nsresult Stop()
|
|
{
|
|
nsresult result = NS_OK;
|
|
|
|
if (mTimer)
|
|
{
|
|
mTimer->Cancel();
|
|
mTimer = 0;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
nsresult Init(nsSelection *aFrameSelection, nsTypedSelection *aSelection)
|
|
{
|
|
mFrameSelection = aFrameSelection;
|
|
mSelection = aSelection;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult SetDelay(PRUint32 aDelay)
|
|
{
|
|
mDelay = aDelay;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHOD Notify(nsITimer *timer)
|
|
{
|
|
if (mSelection && mPresContext && mView)
|
|
{
|
|
nsIFrame *frame = NS_STATIC_CAST(nsIFrame*, mView->GetClientData());
|
|
|
|
if (!frame)
|
|
return NS_OK;
|
|
|
|
mFrameSelection->HandleDrag(mPresContext, frame, mPoint);
|
|
|
|
mSelection->DoAutoScrollView(mPresContext, mView, mPoint, PR_TRUE);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
private:
|
|
nsSelection *mFrameSelection;
|
|
nsTypedSelection *mSelection;
|
|
nsCOMPtr<nsITimer> mTimer;
|
|
nsIView *mView;
|
|
nsPresContext *mPresContext;
|
|
nsPoint mPoint;
|
|
PRUint32 mDelay;
|
|
};
|
|
|
|
NS_IMPL_ADDREF(nsAutoScrollTimer)
|
|
NS_IMPL_RELEASE(nsAutoScrollTimer)
|
|
NS_IMPL_QUERY_INTERFACE1(nsAutoScrollTimer, nsITimerCallback)
|
|
|
|
nsresult NS_NewAutoScrollTimer(nsAutoScrollTimer **aResult);
|
|
|
|
nsresult NS_NewAutoScrollTimer(nsAutoScrollTimer **aResult)
|
|
{
|
|
if (!aResult)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
*aResult = (nsAutoScrollTimer*) new nsAutoScrollTimer;
|
|
|
|
if (!aResult)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
NS_ADDREF(*aResult);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult NS_NewSelection(nsIFrameSelection **aFrameSelection);
|
|
|
|
nsresult NS_NewSelection(nsIFrameSelection **aFrameSelection)
|
|
{
|
|
nsSelection *rlist = new nsSelection;
|
|
if (!rlist)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
*aFrameSelection = (nsIFrameSelection *)rlist;
|
|
rlist->AddRef();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult NS_NewDomSelection(nsISelection **aDomSelection);
|
|
|
|
nsresult NS_NewDomSelection(nsISelection **aDomSelection)
|
|
{
|
|
nsTypedSelection *rlist = new nsTypedSelection;
|
|
if (!rlist)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
*aDomSelection = (nsISelection *)rlist;
|
|
rlist->AddRef();
|
|
return NS_OK;
|
|
}
|
|
|
|
static PRInt8
|
|
GetIndexFromSelectionType(SelectionType aType)
|
|
{
|
|
switch (aType)
|
|
{
|
|
case nsISelectionController::SELECTION_NORMAL: return 0; break;
|
|
case nsISelectionController::SELECTION_SPELLCHECK: return 1; break;
|
|
case nsISelectionController::SELECTION_IME_RAWINPUT: return 2; break;
|
|
case nsISelectionController::SELECTION_IME_SELECTEDRAWTEXT: return 3; break;
|
|
case nsISelectionController::SELECTION_IME_CONVERTEDTEXT: return 4; break;
|
|
case nsISelectionController::SELECTION_IME_SELECTEDCONVERTEDTEXT: return 5; break;
|
|
case nsISelectionController::SELECTION_ACCESSIBILITY: return 6; break;
|
|
default:return -1;break;
|
|
}
|
|
/* NOTREACHED */
|
|
return 0;
|
|
}
|
|
|
|
static SelectionType
|
|
GetSelectionTypeFromIndex(PRInt8 aIndex)
|
|
{
|
|
switch (aIndex)
|
|
{
|
|
case 0: return nsISelectionController::SELECTION_NORMAL;break;
|
|
case 1: return nsISelectionController::SELECTION_SPELLCHECK;break;
|
|
case 2: return nsISelectionController::SELECTION_IME_RAWINPUT;break;
|
|
case 3: return nsISelectionController::SELECTION_IME_SELECTEDRAWTEXT;break;
|
|
case 4: return nsISelectionController::SELECTION_IME_CONVERTEDTEXT;break;
|
|
case 5: return nsISelectionController::SELECTION_IME_SELECTEDCONVERTEDTEXT;break;
|
|
case 6: return nsISelectionController::SELECTION_ACCESSIBILITY;break;
|
|
default:
|
|
return nsISelectionController::SELECTION_NORMAL;break;
|
|
}
|
|
/* NOTREACHED */
|
|
return 0;
|
|
}
|
|
|
|
//utility methods to check the content vs the limiter that will hold selection to a piece of the dom
|
|
PRBool
|
|
IsValidSelectionPoint(nsSelection *aFrameSel, nsIDOMNode *aDomNode)
|
|
{
|
|
nsCOMPtr<nsIContent> passedContent;
|
|
passedContent = do_QueryInterface(aDomNode);
|
|
if (!passedContent)
|
|
return PR_FALSE;
|
|
return IsValidSelectionPoint(aFrameSel,passedContent);
|
|
}
|
|
|
|
/*
|
|
The limiter is used specifically for the text areas and textfields
|
|
In that case it is the DIV tag that is anonymously created for the text
|
|
areas/fields. Text nodes and BR nodes fall beneath it. In the case of a
|
|
BR node the limiter will be the parent and the offset will point before or
|
|
after the BR node. In the case of the text node the parent content is
|
|
the text node itself and the offset will be the exact character position.
|
|
The offset is not important to check for validity. Simply look at the
|
|
passed in content. If it equals the limiter then the selection point is valid.
|
|
If its parent it the limiter then the point is also valid. In the case of
|
|
NO limiter all points are valid since you are in a topmost iframe. (browser
|
|
or composer)
|
|
*/
|
|
PRBool
|
|
IsValidSelectionPoint(nsSelection *aFrameSel, nsIContent *aContent)
|
|
{
|
|
if (!aFrameSel || !aContent)
|
|
return PR_FALSE;
|
|
if (aFrameSel)
|
|
{
|
|
nsresult result;
|
|
nsCOMPtr<nsIContent> tLimiter;
|
|
result = aFrameSel->GetLimiter(getter_AddRefs(tLimiter));
|
|
if (NS_FAILED(result))
|
|
return PR_FALSE;
|
|
if (tLimiter && tLimiter != aContent)
|
|
{
|
|
if (tLimiter != aContent->GetParent()) //if newfocus == the limiter. thats ok. but if not there and not parent bad
|
|
return PR_FALSE; //not in the right content. tLimiter said so
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
NS_IMPL_ADDREF(nsSelectionIterator)
|
|
NS_IMPL_RELEASE(nsSelectionIterator)
|
|
|
|
NS_INTERFACE_MAP_BEGIN(nsSelectionIterator)
|
|
NS_INTERFACE_MAP_ENTRY(nsIEnumerator)
|
|
NS_INTERFACE_MAP_ENTRY(nsIBidirectionalEnumerator)
|
|
NS_INTERFACE_MAP_END_AGGREGATED(mDomSelection)
|
|
|
|
|
|
///////////BEGIN nsSelectionIterator methods
|
|
|
|
nsSelectionIterator::nsSelectionIterator(nsTypedSelection *aList)
|
|
:mIndex(0)
|
|
{
|
|
if (!aList)
|
|
{
|
|
NS_NOTREACHED("nsSelection");
|
|
return;
|
|
}
|
|
mDomSelection = aList;
|
|
}
|
|
|
|
|
|
|
|
nsSelectionIterator::~nsSelectionIterator()
|
|
{
|
|
}
|
|
|
|
|
|
|
|
////////////END nsSelectionIterator methods
|
|
|
|
////////////BEGIN nsIFrameSelectionIterator methods
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelectionIterator::Next()
|
|
{
|
|
mIndex++;
|
|
PRInt32 cnt = mDomSelection->mRangeArray.Count();
|
|
if (mIndex < cnt)
|
|
return NS_OK;
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelectionIterator::Prev()
|
|
{
|
|
mIndex--;
|
|
if (mIndex >= 0 )
|
|
return NS_OK;
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelectionIterator::First()
|
|
{
|
|
if (!mDomSelection)
|
|
return NS_ERROR_NULL_POINTER;
|
|
mIndex = 0;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelectionIterator::Last()
|
|
{
|
|
if (!mDomSelection)
|
|
return NS_ERROR_NULL_POINTER;
|
|
mIndex = mDomSelection->mRangeArray.Count() - 1;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelectionIterator::CurrentItem(nsISupports **aItem)
|
|
{
|
|
if (!aItem)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
if (mIndex < 0 || mIndex >= mDomSelection->mRangeArray.Count()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return CallQueryInterface(mDomSelection->mRangeArray[mIndex],
|
|
aItem);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelectionIterator::CurrentItem(nsIDOMRange **aItem)
|
|
{
|
|
if (!aItem)
|
|
return NS_ERROR_NULL_POINTER;
|
|
if (mIndex < 0 || mIndex >= mDomSelection->mRangeArray.Count()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
*aItem = mDomSelection->mRangeArray[mIndex];
|
|
NS_IF_ADDREF(*aItem);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelectionIterator::IsDone()
|
|
{
|
|
PRInt32 cnt = mDomSelection->mRangeArray.Count();
|
|
if (mIndex >= 0 && mIndex < cnt) {
|
|
return NS_ENUMERATOR_FALSE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
////////////END nsIFrameSelectionIterator methods
|
|
|
|
#ifdef XP_MAC
|
|
#pragma mark -
|
|
#endif
|
|
|
|
////////////BEGIN nsSelection methods
|
|
|
|
nsSelection::nsSelection()
|
|
{
|
|
PRInt32 i;
|
|
for (i = 0;i<nsISelectionController::NUM_SELECTIONTYPES;i++){
|
|
mDomSelections[i] = nsnull;
|
|
}
|
|
for (i = 0;i<nsISelectionController::NUM_SELECTIONTYPES;i++){
|
|
mDomSelections[i] = new nsTypedSelection(this);
|
|
if (!mDomSelections[i])
|
|
return;
|
|
mDomSelections[i]->AddRef();
|
|
mDomSelections[i]->SetType(GetSelectionTypeFromIndex(i));
|
|
}
|
|
mBatching = 0;
|
|
mChangesDuringBatching = PR_FALSE;
|
|
mNotifyFrames = PR_TRUE;
|
|
mLimiter = nsnull; //no default limiter.
|
|
|
|
mMouseDoubleDownState = PR_FALSE;
|
|
|
|
mHint = HINTLEFT;
|
|
mDragSelectingCells = PR_FALSE;
|
|
mSelectingTableCellMode = 0;
|
|
mSelectedCellIndex = 0;
|
|
|
|
// Check to see if the autocopy pref is enabled
|
|
// and add the autocopy listener if it is
|
|
if (nsContentUtils::GetBoolPref("clipboard.autocopy")) {
|
|
nsCOMPtr<nsIAutoCopyService> autoCopyService =
|
|
do_GetService("@mozilla.org/autocopy;1");
|
|
|
|
if (autoCopyService) {
|
|
PRInt8 index =
|
|
GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
if (mDomSelections[index]) {
|
|
autoCopyService->Listen(mDomSelections[index]);
|
|
}
|
|
}
|
|
}
|
|
|
|
mDisplaySelection = nsISelectionController::SELECTION_OFF;
|
|
|
|
mDelayCaretOverExistingSelection = PR_TRUE;
|
|
mDelayedMouseEventValid = PR_FALSE;
|
|
mSelectionChangeReason = nsISelectionListener::NO_REASON;
|
|
}
|
|
|
|
|
|
nsSelection::~nsSelection()
|
|
{
|
|
PRInt32 i;
|
|
for (i = 0;i<nsISelectionController::NUM_SELECTIONTYPES;i++){
|
|
if (mDomSelections[i])
|
|
NS_IF_RELEASE(mDomSelections[i]);
|
|
}
|
|
}
|
|
|
|
|
|
NS_IMPL_ISUPPORTS1(nsSelection, nsIFrameSelection)
|
|
|
|
|
|
nsresult
|
|
nsSelection::FetchDesiredX(nscoord &aDesiredX) //the x position requested by the Key Handling for up down
|
|
{
|
|
if (!mShell)
|
|
{
|
|
NS_ASSERTION(0,"fetch desired X failed\n");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (mDesiredXSet)
|
|
{
|
|
aDesiredX = mDesiredX;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsICaret> caret;
|
|
nsresult result = mShell->GetCaret(getter_AddRefs(caret));
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (!caret)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsRect coord;
|
|
PRBool collapsed;
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
result = caret->SetCaretDOMSelection(mDomSelections[index]);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
result = caret->GetCaretCoordinates(nsICaret::eClosestViewCoordinates, mDomSelections[index], &coord, &collapsed, nsnull);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
aDesiredX = coord.x;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
void
|
|
nsSelection::InvalidateDesiredX() //do not listen to mDesiredX you must get another.
|
|
{
|
|
mDesiredXSet = PR_FALSE;
|
|
}
|
|
|
|
|
|
|
|
void
|
|
nsSelection::SetDesiredX(nscoord aX) //set the mDesiredX
|
|
{
|
|
mDesiredX = aX;
|
|
mDesiredXSet = PR_TRUE;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::GetRootForContentSubtree(nsIContent *aContent, nsIContent **aParent)
|
|
{
|
|
// This method returns the root of the sub-tree containing aContent.
|
|
// We do this by searching up through the parent hierarchy, and stopping
|
|
// when there are no more parents, or we hit a situation where the
|
|
// parent/child relationship becomes invalid.
|
|
//
|
|
// An example of an invalid parent/child relationship is anonymous content.
|
|
// Anonymous content has a pointer to it's parent, but it is not listed
|
|
// as a child of it's parent. In this case, the anonymous content would
|
|
// be considered the root of the subtree.
|
|
|
|
if (!aContent || !aParent)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
*aParent = 0;
|
|
|
|
nsIContent* child = aContent;
|
|
|
|
while (child)
|
|
{
|
|
nsIContent* parent = child->GetParent();
|
|
|
|
if (!parent)
|
|
break;
|
|
|
|
PRUint32 childCount = parent->GetChildCount();
|
|
|
|
if (childCount < 1)
|
|
break;
|
|
|
|
PRInt32 childIndex = parent->IndexOf(child);
|
|
|
|
if (childIndex < 0 || ((PRUint32)childIndex) >= childCount)
|
|
break;
|
|
|
|
child = parent;
|
|
}
|
|
|
|
NS_IF_ADDREF(*aParent = child);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::ConstrainFrameAndPointToAnchorSubtree(nsPresContext *aPresContext, nsIFrame *aFrame, nsPoint& aPoint, nsIFrame **aRetFrame, nsPoint& aRetPoint)
|
|
{
|
|
//
|
|
// The whole point of this method is to return a frame and point that
|
|
// that lie within the same valid subtree as the anchor node's frame,
|
|
// for use with the method GetContentAndOffsetsFromPoint().
|
|
//
|
|
// A valid subtree is defined to be one where all the content nodes in
|
|
// the tree have a valid parent-child relationship.
|
|
//
|
|
// If the anchor frame and aFrame are in the same subtree, aFrame will
|
|
// be returned in aRetFrame. If they are in different subtrees, we
|
|
// return the frame for the root of the subtree.
|
|
//
|
|
|
|
if (!aFrame || !aRetFrame)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
*aRetFrame = aFrame;
|
|
aRetPoint = aPoint;
|
|
|
|
//
|
|
// Get the frame and content for the selection's anchor point!
|
|
//
|
|
|
|
nsresult result;
|
|
nsCOMPtr<nsIDOMNode> anchorNode;
|
|
PRInt32 anchorOffset = 0;
|
|
PRInt32 anchorFrameOffset = 0;
|
|
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
if (! mDomSelections[index])
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
result = mDomSelections[index]->GetAnchorNode(getter_AddRefs(anchorNode));
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (!anchorNode)
|
|
return NS_OK;
|
|
|
|
result = mDomSelections[index]->GetAnchorOffset(&anchorOffset);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsIFrame *anchorFrame = 0;
|
|
nsCOMPtr<nsIContent> anchorContent = do_QueryInterface(anchorNode);
|
|
|
|
if (!anchorContent)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
result = GetFrameForNodeOffset(anchorContent, anchorOffset, mHint, &anchorFrame, &anchorFrameOffset);
|
|
|
|
//
|
|
// Now find the root of the subtree containing the anchor's content.
|
|
//
|
|
|
|
nsCOMPtr<nsIContent> anchorRoot;
|
|
result = GetRootForContentSubtree(anchorContent, getter_AddRefs(anchorRoot));
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// Now find the root of the subtree containing aFrame's content.
|
|
//
|
|
|
|
nsIContent* content = aFrame->GetContent();
|
|
|
|
if (content)
|
|
{
|
|
nsCOMPtr<nsIContent> contentRoot;
|
|
|
|
result = GetRootForContentSubtree(content, getter_AddRefs(contentRoot));
|
|
|
|
if (anchorRoot == contentRoot)
|
|
{
|
|
//
|
|
// The anchor and AFrame's root are the same. There
|
|
// is no need to constrain, simply return aFrame.
|
|
//
|
|
*aRetFrame = aFrame;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
//
|
|
// aFrame's root does not match the anchor's root, or there is no
|
|
// content associated with aFrame. Just return the primary frame
|
|
// for the anchor's root. We'll let GetContentAndOffsetsFromPoint()
|
|
// find the closest frame aPoint.
|
|
//
|
|
|
|
result = mShell->GetPrimaryFrameFor(anchorRoot, aRetFrame);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (! *aRetFrame)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
//
|
|
// Now make sure that aRetPoint is converted to the same coordinate
|
|
// system used by aRetFrame.
|
|
//
|
|
|
|
aRetPoint = aPoint + aFrame->GetOffsetTo(*aRetFrame);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
#ifdef XP_MAC
|
|
#pragma mark -
|
|
#endif
|
|
|
|
#ifdef PRINT_RANGE
|
|
void printRange(nsIDOMRange *aDomRange)
|
|
{
|
|
if (!aDomRange)
|
|
{
|
|
printf("NULL nsIDOMRange\n");
|
|
}
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
PRInt32 startOffset;
|
|
PRInt32 endOffset;
|
|
aDomRange->GetStartParent(getter_AddRefs(startNode));
|
|
aDomRange->GetStartOffset(&startOffset);
|
|
aDomRange->GetEndParent(getter_AddRefs(endNode));
|
|
aDomRange->GetEndOffset(&endOffset);
|
|
|
|
printf("range: 0x%lx\t start: 0x%lx %ld, \t end: 0x%lx,%ld\n",
|
|
(unsigned long)aDomRange,
|
|
(unsigned long)(nsIDOMNode*)startNode, (long)startOffset,
|
|
(unsigned long)(nsIDOMNode*)endNode, (long)endOffset);
|
|
|
|
}
|
|
#endif /* PRINT_RANGE */
|
|
|
|
static
|
|
nsIAtom *GetTag(nsIDOMNode *aNode)
|
|
{
|
|
nsCOMPtr<nsIContent> content = do_QueryInterface(aNode);
|
|
if (!content)
|
|
{
|
|
NS_NOTREACHED("bad node passed to GetTag()");
|
|
return nsnull;
|
|
}
|
|
|
|
return content->Tag();
|
|
}
|
|
|
|
nsresult
|
|
ParentOffset(nsIDOMNode *aNode, nsIDOMNode **aParent, PRInt32 *aChildOffset)
|
|
{
|
|
if (!aNode || !aParent || !aChildOffset)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsCOMPtr<nsIContent> content = do_QueryInterface(aNode);
|
|
if (content)
|
|
{
|
|
nsIContent* parent = content->GetParent();
|
|
if (parent)
|
|
{
|
|
*aChildOffset = parent->IndexOf(content);
|
|
|
|
return CallQueryInterface(parent, aParent);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIDOMNode *
|
|
GetCellParent(nsIDOMNode *aDomNode)
|
|
{
|
|
if (!aDomNode)
|
|
return 0;
|
|
nsCOMPtr<nsIDOMNode> parent(aDomNode);
|
|
nsCOMPtr<nsIDOMNode> current(aDomNode);
|
|
PRInt32 childOffset;
|
|
nsIAtom *tag;
|
|
// Start with current node and look for a table cell
|
|
while(current)
|
|
{
|
|
tag = GetTag(current);
|
|
if (tag == nsHTMLAtoms::td || tag == nsHTMLAtoms::th)
|
|
return current;
|
|
if (NS_FAILED(ParentOffset(current,getter_AddRefs(parent),&childOffset)) || !parent)
|
|
return 0;
|
|
current = parent;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::Init(nsIPresShell *aShell, nsIContent *aLimiter)
|
|
{
|
|
mShell = aShell;
|
|
mMouseDownState = PR_FALSE;
|
|
mDesiredXSet = PR_FALSE;
|
|
mLimiter = aLimiter;
|
|
mScrollView = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::SetScrollableView(nsIScrollableView *aScrollView)
|
|
{
|
|
mScrollView = aScrollView;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::ShutDown()
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::HandleTextEvent(nsGUIEvent *aGUIEvent)
|
|
{
|
|
if (!aGUIEvent)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
#ifdef DEBUG_TAGUE
|
|
printf("nsSelection: HandleTextEvent\n");
|
|
#endif
|
|
nsresult result(NS_OK);
|
|
if (NS_TEXT_TEXT == aGUIEvent->message) {
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
result = mDomSelections[index]->ScrollIntoView();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsSelection::MoveCaret(PRUint32 aKeycode, PRBool aContinue, nsSelectionAmount aAmount)
|
|
{
|
|
nsPresContext *context = mShell->GetPresContext();
|
|
if (!context)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIDOMNode> weakNodeUsed;
|
|
PRInt32 offsetused = 0;
|
|
|
|
PRBool isCollapsed;
|
|
nscoord desiredX = 0; //we must keep this around and revalidate it when its just UP/DOWN
|
|
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
nsresult result = mDomSelections[index]->GetIsCollapsed(&isCollapsed);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (aKeycode == nsIDOMKeyEvent::DOM_VK_UP || aKeycode == nsIDOMKeyEvent::DOM_VK_DOWN)
|
|
{
|
|
result = FetchDesiredX(desiredX);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
SetDesiredX(desiredX);
|
|
}
|
|
|
|
if (!isCollapsed && !aContinue) {
|
|
switch (aKeycode){
|
|
case nsIDOMKeyEvent::DOM_VK_LEFT :
|
|
case nsIDOMKeyEvent::DOM_VK_UP : {
|
|
if ((mDomSelections[index]->GetDirection() == eDirPrevious)) { //f,a
|
|
offsetused = mDomSelections[index]->FetchFocusOffset();
|
|
weakNodeUsed = mDomSelections[index]->FetchFocusNode();
|
|
}
|
|
else {
|
|
offsetused = mDomSelections[index]->FetchAnchorOffset();
|
|
weakNodeUsed = mDomSelections[index]->FetchAnchorNode();
|
|
}
|
|
result = mDomSelections[index]->Collapse(weakNodeUsed,offsetused);
|
|
mDomSelections[index]->ScrollIntoView();
|
|
mHint = HINTRIGHT;
|
|
return NS_OK;
|
|
} break;
|
|
case nsIDOMKeyEvent::DOM_VK_RIGHT :
|
|
case nsIDOMKeyEvent::DOM_VK_DOWN : {
|
|
if ((mDomSelections[index]->GetDirection() == eDirPrevious)) { //f,a
|
|
offsetused = mDomSelections[index]->FetchAnchorOffset();
|
|
weakNodeUsed = mDomSelections[index]->FetchAnchorNode();
|
|
}
|
|
else {
|
|
offsetused = mDomSelections[index]->FetchFocusOffset();
|
|
weakNodeUsed = mDomSelections[index]->FetchFocusNode();
|
|
}
|
|
result = mDomSelections[index]->Collapse(weakNodeUsed,offsetused);
|
|
mDomSelections[index]->ScrollIntoView();
|
|
mHint = HINTLEFT;
|
|
return NS_OK;
|
|
} break;
|
|
|
|
}
|
|
// if (keyEvent->keyCode == nsIDOMKeyEvent::DOM_VK_UP || keyEvent->keyCode == nsIDOMKeyEvent::DOM_VK_DOWN)
|
|
// SetDesiredX(desiredX);
|
|
}
|
|
|
|
nsCOMPtr<nsICaret> caret;
|
|
result = mShell->GetCaret(getter_AddRefs(caret));
|
|
if (NS_FAILED(result) || !caret)
|
|
return 0;
|
|
|
|
offsetused = mDomSelections[index]->FetchFocusOffset();
|
|
weakNodeUsed = mDomSelections[index]->FetchFocusNode();
|
|
|
|
|
|
nsIFrame *frame;
|
|
result = mDomSelections[index]->GetPrimaryFrameForFocusNode(&frame, &offsetused);
|
|
|
|
if (NS_FAILED(result) || !frame)
|
|
return result?result:NS_ERROR_FAILURE;
|
|
nsCOMPtr<nsIDOMNode> node = do_QueryInterface(frame->GetContent());
|
|
nsCOMPtr<nsIDOMNode> parentNode;
|
|
nsPeekOffsetStruct pos;
|
|
|
|
//set data using mLimiter to stop on scroll views. If we have a limiter then we stop peeking
|
|
//when we hit scrollable views. If no limiter then just let it go ahead
|
|
pos.SetData(mShell, desiredX, aAmount, eDirPrevious, offsetused, PR_FALSE,
|
|
PR_TRUE, PR_TRUE, mLimiter != nsnull, PR_TRUE);
|
|
|
|
HINT tHint(mHint); //temporary variable so we dont set mHint until it is necessary
|
|
switch (aKeycode){
|
|
case nsIDOMKeyEvent::DOM_VK_RIGHT :
|
|
InvalidateDesiredX();
|
|
pos.mDirection = eDirNext;
|
|
tHint = HINTLEFT;//stick to this line
|
|
PostReason(nsISelectionListener::KEYPRESS_REASON);
|
|
break;
|
|
case nsIDOMKeyEvent::DOM_VK_LEFT : //no break
|
|
InvalidateDesiredX();
|
|
tHint = HINTRIGHT;//stick to opposite of movement
|
|
PostReason(nsISelectionListener::KEYPRESS_REASON);
|
|
break;
|
|
case nsIDOMKeyEvent::DOM_VK_DOWN :
|
|
pos.mAmount = eSelectLine;
|
|
pos.mDirection = eDirNext;//no break here
|
|
PostReason(nsISelectionListener::KEYPRESS_REASON);
|
|
break;
|
|
case nsIDOMKeyEvent::DOM_VK_UP :
|
|
pos.mAmount = eSelectLine;
|
|
PostReason(nsISelectionListener::KEYPRESS_REASON);
|
|
break;
|
|
case nsIDOMKeyEvent::DOM_VK_HOME :
|
|
InvalidateDesiredX();
|
|
pos.mAmount = eSelectBeginLine;
|
|
tHint = HINTRIGHT;//stick to opposite of movement
|
|
PostReason(nsISelectionListener::KEYPRESS_REASON);
|
|
break;
|
|
case nsIDOMKeyEvent::DOM_VK_END :
|
|
InvalidateDesiredX();
|
|
pos.mAmount = eSelectEndLine;
|
|
tHint = HINTLEFT;//stick to this line
|
|
PostReason(nsISelectionListener::KEYPRESS_REASON);
|
|
break;
|
|
default :return NS_ERROR_FAILURE;
|
|
}
|
|
pos.mPreferLeft = tHint;
|
|
if (NS_SUCCEEDED(result) && NS_SUCCEEDED(result = frame->PeekOffset(context, &pos)) && pos.mResultContent)
|
|
{
|
|
tHint = (HINT)pos.mPreferLeft;
|
|
if (context->BidiEnabled())
|
|
{
|
|
nsIFrame *theFrame;
|
|
PRInt32 currentOffset, frameStart, frameEnd;
|
|
|
|
// XXX - I expected to be able to use pos.mResultFrame, but when we move from frame to frame
|
|
// and |PeekOffset| is called recursively, pos.mResultFrame on exit is sometimes set to the original
|
|
// frame, not the frame that we ended up in, so I need this call to |GetFrameForNodeOffset|.
|
|
// I don't know if that could or should be changed or if it would break something else.
|
|
GetFrameForNodeOffset(pos.mResultContent, pos.mContentOffset, tHint, &theFrame, ¤tOffset);
|
|
theFrame->GetOffsets(frameStart, frameEnd);
|
|
|
|
// the hint might have been reversed by an RTL frame, so make sure of it
|
|
if (nsIDOMKeyEvent::DOM_VK_HOME == aKeycode)
|
|
pos.mPreferLeft = PR_TRUE;
|
|
else if (nsIDOMKeyEvent::DOM_VK_END == aKeycode)
|
|
pos.mPreferLeft = PR_FALSE;
|
|
tHint = (HINT)pos.mPreferLeft;
|
|
if (frameStart !=0 || frameEnd !=0) // Otherwise the frame is not a text frame, so nothing more to do
|
|
{
|
|
switch (aKeycode) {
|
|
case nsIDOMKeyEvent::DOM_VK_HOME:
|
|
case nsIDOMKeyEvent::DOM_VK_END:
|
|
|
|
// force the offset to the logical beginning (for HOME) or end (for END) of the frame
|
|
// (if it is an RTL frame it will be at the visual beginning or end, which we don't want in this case)
|
|
if (nsIDOMKeyEvent::DOM_VK_HOME == aKeycode)
|
|
pos.mContentOffset = frameStart;
|
|
else
|
|
pos.mContentOffset = frameEnd;
|
|
|
|
// set the cursor Bidi level to the paragraph embedding level
|
|
mShell->SetCaretBidiLevel(NS_GET_BASE_LEVEL(theFrame));
|
|
break;
|
|
|
|
default:
|
|
// If the current position is not a frame boundary, it's enough just to take the Bidi level of the current frame
|
|
if ((pos.mContentOffset != frameStart && pos.mContentOffset != frameEnd)
|
|
|| (eSelectDir == aAmount)
|
|
|| (eSelectLine == aAmount))
|
|
{
|
|
mShell->SetCaretBidiLevel(NS_GET_EMBEDDING_LEVEL(theFrame));
|
|
}
|
|
else
|
|
BidiLevelFromMove(context, mShell, pos.mResultContent, pos.mContentOffset, aKeycode);
|
|
}
|
|
}
|
|
#ifdef VISUALSELECTION
|
|
// Handle visual selection
|
|
if (aContinue)
|
|
{
|
|
result = VisualSelectFrames(context, theFrame, pos);
|
|
if (NS_FAILED(result)) // Back out by collapsing the selection to the current position
|
|
result = TakeFocus(pos.mResultContent, pos.mContentOffset, pos.mContentOffset, PR_FALSE, PR_FALSE);
|
|
}
|
|
else
|
|
result = TakeFocus(pos.mResultContent, pos.mContentOffset, pos.mContentOffset, aContinue, PR_FALSE);
|
|
}
|
|
else
|
|
#else
|
|
}
|
|
#endif // VISUALSELECTION
|
|
result = TakeFocus(pos.mResultContent, pos.mContentOffset, pos.mContentOffset, aContinue, PR_FALSE);
|
|
}
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
mHint = tHint; //save the hint parameter now for the next time
|
|
result = mDomSelections[index]->ScrollIntoView();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
/** This raises a question, if this method is called and the aFrame does not reflect the current
|
|
* focus DomNode, it is invalid? The answer now is yes.
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsSelection::HandleKeyEvent(nsPresContext* aPresContext, nsGUIEvent *aGuiEvent)
|
|
{
|
|
if (!aGuiEvent)
|
|
return NS_ERROR_NULL_POINTER;
|
|
STATUS_CHECK_RETURN_MACRO();
|
|
|
|
nsresult result = NS_ERROR_FAILURE;
|
|
if (NS_KEY_PRESS == aGuiEvent->message) {
|
|
nsKeyEvent *keyEvent = (nsKeyEvent *)aGuiEvent; //this is ok. It really is a keyevent
|
|
switch (keyEvent->keyCode)
|
|
{
|
|
case nsIDOMKeyEvent::DOM_VK_LEFT :
|
|
case nsIDOMKeyEvent::DOM_VK_UP :
|
|
case nsIDOMKeyEvent::DOM_VK_DOWN :
|
|
case nsIDOMKeyEvent::DOM_VK_RIGHT :
|
|
case nsIDOMKeyEvent::DOM_VK_HOME :
|
|
case nsIDOMKeyEvent::DOM_VK_END :
|
|
break;
|
|
default:
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
//XXX Need xp way get platfrom specific behavior into key navigation.
|
|
//XXX This really shouldn't have to use an ifdef
|
|
#ifdef _WIN32
|
|
if (keyEvent->isAlt) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
#endif
|
|
nsSelectionAmount amount = eSelectCharacter;
|
|
if (keyEvent->isControl)
|
|
amount = eSelectWord;
|
|
return MoveCaret(keyEvent->keyCode, keyEvent->isShift, amount);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
//END nsSelection methods
|
|
|
|
|
|
//BEGIN nsIFrameSelection methods
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::ToString(PRUnichar **aReturn)
|
|
{
|
|
return ToStringWithFormat("text/plain", 0, 0, aReturn);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::ToStringWithFormat(const char * aFormatType, PRUint32 aFlags,
|
|
PRInt32 aWrapCol, PRUnichar **aReturn)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
if (!aReturn)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsCAutoString formatType( NS_DOC_ENCODER_CONTRACTID_BASE );
|
|
formatType.Append(aFormatType);
|
|
nsCOMPtr<nsIDocumentEncoder> encoder =
|
|
do_CreateInstance(formatType.get(), &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
rv = GetPresShell(getter_AddRefs(shell));
|
|
if (NS_FAILED(rv) || !shell) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsIDocument *doc = shell->GetDocument();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Flags should always include OutputSelectionOnly if we're coming from here:
|
|
aFlags |= nsIDocumentEncoder::OutputSelectionOnly;
|
|
nsAutoString readstring;
|
|
readstring.AssignASCII(aFormatType);
|
|
rv = encoder->Init(doc, readstring, aFlags);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
encoder->SetSelection(this);
|
|
if (aWrapCol != 0)
|
|
encoder->SetWrapColumn(aWrapCol);
|
|
|
|
nsAutoString tmp;
|
|
rv = encoder->EncodeToString(tmp);
|
|
*aReturn = ToNewUnicode(tmp);//get the unicode pointer from it. this is temporary
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::SetInterlinePosition(PRBool aHintRight)
|
|
{
|
|
nsIFrameSelection::HINT hint;
|
|
if (aHintRight)
|
|
hint = nsIFrameSelection::HINTRIGHT;
|
|
else
|
|
hint = nsIFrameSelection::HINTLEFT;
|
|
return mFrameSelection->SetHint(hint);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetInterlinePosition(PRBool *aHintRight)
|
|
{
|
|
nsIFrameSelection::HINT hint;
|
|
nsresult rv = mFrameSelection->GetHint(&hint);
|
|
if (hint == nsIFrameSelection::HINTRIGHT)
|
|
*aHintRight = PR_TRUE;
|
|
else
|
|
*aHintRight = PR_FALSE;
|
|
return rv;
|
|
}
|
|
|
|
#ifdef VISUALSELECTION
|
|
|
|
static nsDirection
|
|
ReverseDirection(nsDirection aDirection)
|
|
{
|
|
return (eDirNext == aDirection) ? eDirPrevious : eDirNext;
|
|
}
|
|
|
|
static nsresult
|
|
FindLineContaining(nsIFrame* aFrame, nsIFrame** aBlock, PRInt32* aLine)
|
|
{
|
|
nsIFrame *blockFrame = aFrame;
|
|
nsIFrame *thisBlock = nsnull;
|
|
nsCOMPtr<nsILineIteratorNavigator> it;
|
|
nsresult result = NS_ERROR_FAILURE;
|
|
while (NS_FAILED(result) && blockFrame)
|
|
{
|
|
thisBlock = blockFrame;
|
|
blockFrame = blockFrame->GetParent();
|
|
if (blockFrame) {
|
|
it = do_QueryInterface(blockFrame, &result);
|
|
}
|
|
}
|
|
if (!blockFrame || !it)
|
|
return NS_ERROR_FAILURE;
|
|
*aBlock = blockFrame;
|
|
return it->FindLineContaining(thisBlock, aLine);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::VisualSequence(nsPresContext *aPresContext,
|
|
nsIFrame* aSelectFrame,
|
|
nsIFrame* aCurrentFrame,
|
|
nsPeekOffsetStruct* aPos,
|
|
PRBool* aNeedVisualSelection)
|
|
{
|
|
nsVoidArray frameArray;
|
|
PRInt32 frameStart, frameEnd;
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
nsresult result = nsnull;
|
|
|
|
PRUint8 currentLevel = NS_GET_EMBEDDING_LEVEL(aCurrentFrame);
|
|
result = aSelectFrame->PeekOffset(aPresContext, aPos);
|
|
while (aCurrentFrame != (aSelectFrame = aPos->mResultFrame))
|
|
{
|
|
if (NS_FAILED(result))
|
|
return NS_OK; // we have passed the end of the line, and we will carry on from there
|
|
if (!aSelectFrame)
|
|
return NS_ERROR_FAILURE;
|
|
if (frameArray.IndexOf(aSelectFrame) > -1)
|
|
// If we have already seen this frame, we must be in an infinite loop
|
|
return NS_OK;
|
|
else
|
|
frameArray.AppendElement(aSelectFrame);
|
|
|
|
aSelectFrame->GetOffsets(frameStart, frameEnd);
|
|
PRUint8 bidiLevel = NS_GET_EMBEDDING_LEVEL(aSelectFrame);
|
|
|
|
if (currentLevel != bidiLevel)
|
|
*aNeedVisualSelection = PR_TRUE;
|
|
if ((eDirNext == aPos->mDirection) == (bidiLevel & 1))
|
|
{
|
|
mDomSelections[index]->SetDirection(eDirPrevious);
|
|
result = TakeFocus(aPos->mResultContent, frameEnd, frameStart, PR_FALSE, PR_TRUE);
|
|
}
|
|
else
|
|
{
|
|
mDomSelections[index]->SetDirection(eDirNext);
|
|
result = TakeFocus(aPos->mResultContent, frameStart, frameEnd, PR_FALSE, PR_TRUE);
|
|
}
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
aPos->mAmount = eSelectDir; // reset this because PeekOffset will have changed it to eSelectNoAmount
|
|
aPos->mContentOffset = 0;
|
|
result = aSelectFrame->PeekOffset(aPresContext, aPos);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::SelectToEdge(nsIFrame *aFrame, nsIContent *aContent, PRInt32 aOffset, PRInt32 aEdge, PRBool aMultipleSelection)
|
|
{
|
|
PRInt32 frameStart, frameEnd;
|
|
|
|
aFrame->GetOffsets(frameStart, frameEnd);
|
|
if (0 == aEdge)
|
|
aEdge = frameStart;
|
|
else if (-1 == aEdge)
|
|
aEdge = frameEnd;
|
|
if (0 == aOffset)
|
|
aOffset = frameStart;
|
|
else if (-1 == aOffset)
|
|
aOffset = frameEnd;
|
|
return TakeFocus(aContent, aOffset, aEdge, PR_FALSE, aMultipleSelection);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::SelectLines(nsPresContext *aPresContext,
|
|
nsDirection aSelectionDirection,
|
|
nsIDOMNode *aAnchorNode,
|
|
nsIFrame* aAnchorFrame,
|
|
PRInt32 aAnchorOffset,
|
|
nsIDOMNode *aCurrentNode,
|
|
nsIFrame* aCurrentFrame,
|
|
PRInt32 aCurrentOffset,
|
|
nsPeekOffsetStruct aPos)
|
|
{
|
|
nsIFrame *startFrame, *endFrame;
|
|
PRInt32 startOffset, endOffset;
|
|
PRInt32 relativePosition;
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
nsIContent *startContent;
|
|
nsIContent *endContent;
|
|
nsresult result;
|
|
|
|
// normalize the order before we start to avoid piles of conditions later
|
|
relativePosition = nsRange::ComparePoints(aAnchorNode, aAnchorOffset,
|
|
aCurrentNode, aCurrentOffset);
|
|
if (0 == relativePosition)
|
|
return NS_ERROR_FAILURE;
|
|
else if (relativePosition < 0)
|
|
{
|
|
startNode = aAnchorNode;
|
|
startFrame = aAnchorFrame;
|
|
startOffset = aAnchorOffset;
|
|
endNode = aCurrentNode;
|
|
endFrame = aCurrentFrame;
|
|
endOffset = aCurrentOffset;
|
|
}
|
|
else
|
|
{
|
|
startNode = aCurrentNode;
|
|
startFrame = aCurrentFrame;
|
|
startOffset = aCurrentOffset;
|
|
endNode = aAnchorNode;
|
|
endFrame = aAnchorFrame;
|
|
endOffset = aAnchorOffset;
|
|
}
|
|
|
|
aPos.mStartOffset = startOffset;
|
|
aPos.mDirection = eDirNext;
|
|
aPos.mAmount = eSelectLine;
|
|
result = startFrame->PeekOffset(aPresContext, &aPos);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
startFrame = aPos.mResultFrame;
|
|
|
|
aPos.mStartOffset = aPos.mContentOffset;
|
|
aPos.mAmount = eSelectBeginLine;
|
|
result = startFrame->PeekOffset(aPresContext, &aPos);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsIFrame *theFrame;
|
|
PRInt32 currentOffset, frameStart, frameEnd;
|
|
|
|
result = GetFrameForNodeOffset(aPos.mResultContent, aPos.mContentOffset, HINTLEFT, &theFrame, ¤tOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
theFrame->GetOffsets(frameStart, frameEnd);
|
|
startOffset = frameStart;
|
|
startContent = aPos.mResultContent;
|
|
startNode = do_QueryInterface(startContent);
|
|
|
|
// If we have already overshot the endpoint, back out
|
|
if (nsRange::ComparePoints(startNode, startOffset, endNode, endOffset) >= 0)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
aPos.mStartOffset = endOffset;
|
|
aPos.mDirection = eDirPrevious;
|
|
aPos.mAmount = eSelectLine;
|
|
result = endFrame->PeekOffset(aPresContext, &aPos);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
endFrame = aPos.mResultFrame;
|
|
|
|
aPos.mStartOffset = aPos.mContentOffset;
|
|
aPos.mAmount = eSelectEndLine;
|
|
result = endFrame->PeekOffset(aPresContext, &aPos);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
result = GetFrameForNodeOffset(aPos.mResultContent, aPos.mContentOffset, HINTRIGHT, &theFrame, ¤tOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
theFrame->GetOffsets(frameStart, frameEnd);
|
|
endOffset = frameEnd;
|
|
endContent = aPos.mResultContent;
|
|
endNode = do_QueryInterface(endContent);
|
|
|
|
if (nsRange::ComparePoints(startNode, startOffset, endNode, endOffset) < 0)
|
|
{
|
|
TakeFocus(startContent, startOffset, startOffset, PR_FALSE, PR_TRUE);
|
|
return TakeFocus(endContent, endOffset, endOffset, PR_TRUE, PR_TRUE);
|
|
}
|
|
else
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::VisualSelectFrames(nsPresContext *aPresContext,
|
|
nsIFrame* aCurrentFrame,
|
|
nsPeekOffsetStruct aPos)
|
|
{
|
|
nsCOMPtr<nsIContent> anchorContent;
|
|
nsCOMPtr<nsIDOMNode> anchorNode;
|
|
PRInt32 anchorOffset;
|
|
nsIFrame* anchorFrame;
|
|
nsCOMPtr<nsIContent> focusContent;
|
|
nsCOMPtr<nsIDOMNode> focusNode;
|
|
PRInt32 focusOffset;
|
|
nsIFrame* focusFrame;
|
|
nsCOMPtr<nsIContent> currentContent;
|
|
nsCOMPtr<nsIDOMNode> currentNode;
|
|
PRInt32 currentOffset;
|
|
nsresult result;
|
|
nsIFrame* startFrame;
|
|
PRBool needVisualSelection = PR_FALSE;
|
|
nsDirection selectionDirection;
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
|
|
result = mDomSelections[index]->GetOriginalAnchorPoint(getter_AddRefs(anchorNode), &anchorOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
anchorContent = do_QueryInterface(anchorNode);
|
|
result = GetFrameForNodeOffset(anchorContent, anchorOffset, mHint, &anchorFrame, &anchorOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
PRUint8 anchorLevel = NS_GET_EMBEDDING_LEVEL(anchorFrame);
|
|
|
|
currentContent = aPos.mResultContent;
|
|
currentNode = do_QueryInterface(currentContent);
|
|
currentOffset = aPos.mContentOffset;
|
|
PRUint8 currentLevel = NS_GET_EMBEDDING_LEVEL(aCurrentFrame);
|
|
|
|
// Moving from simplest case to more complicated:
|
|
// case 1: selection starts and ends in the same frame: no special treatment
|
|
if (anchorFrame == aCurrentFrame) {
|
|
mDomSelections[index]->SetTrueDirection(!(anchorLevel & 1));
|
|
return TakeFocus(currentContent, anchorOffset, currentOffset, PR_FALSE, PR_FALSE);
|
|
}
|
|
|
|
focusOffset = mDomSelections[index]->FetchFocusOffset();
|
|
focusNode = mDomSelections[index]->FetchFocusNode();
|
|
focusContent = do_QueryInterface(focusNode);
|
|
HINT hint;
|
|
if ((HINTLEFT == mHint) == (currentLevel & 1))
|
|
hint = HINTRIGHT;
|
|
else
|
|
hint = HINTLEFT;
|
|
|
|
result = GetFrameForNodeOffset(focusContent, focusOffset, hint, &focusFrame, &focusOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
PRUint8 focusLevel = NS_GET_EMBEDDING_LEVEL(focusFrame);
|
|
|
|
if (currentLevel != anchorLevel)
|
|
needVisualSelection = PR_TRUE;
|
|
|
|
// Make sure of the selection direction
|
|
selectionDirection = mDomSelections[index]->GetDirection();
|
|
if (!mDomSelections[index]->GetTrueDirection()) {
|
|
selectionDirection = ReverseDirection(selectionDirection);
|
|
mDomSelections[index]->SetDirection(selectionDirection);
|
|
}
|
|
|
|
PRInt32 anchorLine, currentLine;
|
|
nsIFrame* anchorBlock = nsnull;
|
|
nsIFrame* currentBlock = nsnull;
|
|
FindLineContaining(anchorFrame, &anchorBlock, &anchorLine);
|
|
FindLineContaining(aCurrentFrame, ¤tBlock, ¤tLine);
|
|
|
|
if (anchorBlock==currentBlock && anchorLine==currentLine)
|
|
{
|
|
// case 2: selection starts and ends in the same line
|
|
|
|
// Select from the anchor point to the edge of the frame
|
|
// Which edge? If the selection direction is forward the right edge, if it is backward the left edge
|
|
// For rtl frames the right edge is the begining of the frame, for ltr frames it is the end and vice versa
|
|
if ((eDirNext == selectionDirection) == (anchorLevel & 1))
|
|
result = SelectToEdge(anchorFrame, anchorContent, anchorOffset, 0, PR_FALSE);
|
|
else
|
|
result = SelectToEdge(anchorFrame, anchorContent, anchorOffset, -1, PR_FALSE);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
// Walk the frames in visual order until we reach the current frame, selecting each frame as we go
|
|
InvalidateDesiredX();
|
|
aPos.mAmount = eSelectDir;
|
|
aPos.mStartOffset = anchorOffset;
|
|
aPos.mDirection = selectionDirection;
|
|
|
|
result = anchorFrame->PeekOffset(aPresContext, &aPos);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
startFrame = aPos.mResultFrame;
|
|
result = VisualSequence(aPresContext, startFrame, aCurrentFrame, &aPos, &needVisualSelection);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (!needVisualSelection)
|
|
{
|
|
if (currentLevel & 1)
|
|
mDomSelections[index]->SetDirection(ReverseDirection(selectionDirection));
|
|
// all the frames we passed through had the same Bidi level, so we can back out and do an ordinary selection
|
|
result = TakeFocus(anchorContent, anchorOffset, anchorOffset, PR_FALSE, PR_FALSE);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
result = TakeFocus(currentContent, currentOffset, currentOffset, PR_TRUE, PR_FALSE);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
}
|
|
else {
|
|
if ((currentLevel & 1) != (focusLevel & 1))
|
|
mDomSelections[index]->SetDirection(ReverseDirection(selectionDirection));
|
|
// Select from the current point to the edge of the frame
|
|
if ((eDirNext == selectionDirection) == (currentLevel & 1))
|
|
result = SelectToEdge(aCurrentFrame, currentContent, -1, currentOffset, PR_TRUE);
|
|
else
|
|
result = SelectToEdge(aCurrentFrame, currentContent, 0, currentOffset, PR_TRUE);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
}
|
|
}
|
|
else {
|
|
|
|
// case 3: selection starts and ends in different lines
|
|
|
|
// If selection direction is forwards:
|
|
// Select from the anchor point to the edge of the frame in the direction of the end of the line
|
|
// i.e. the rightmost character if the current paragraph embedding level is even (LTR paragraph)
|
|
// or the leftmost character if the current paragraph embedding level is odd (RTL paragraph)
|
|
//
|
|
// As before, for rtl frames the right edge is the begining of the frame, for ltr frames it is the end and vice versa
|
|
//
|
|
// If selection direction is backwards, vice versa throughout
|
|
//
|
|
PRUint8 anchorBaseLevel = NS_GET_BASE_LEVEL(anchorFrame);
|
|
if ((eDirNext == selectionDirection) != ((anchorLevel & 1) == (anchorBaseLevel & 1)))
|
|
result = SelectToEdge(anchorFrame, anchorContent, anchorOffset, 0, PR_FALSE);
|
|
else
|
|
result = SelectToEdge(anchorFrame, anchorContent, anchorOffset, -1, PR_FALSE);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
// Walk the frames in visual order until we reach the end of the line
|
|
aPos.mJumpLines = PR_FALSE;
|
|
aPos.mAmount = eSelectDir;
|
|
aPos.mStartOffset = anchorOffset;
|
|
aPos.mDirection = selectionDirection;
|
|
if (anchorBaseLevel & 1)
|
|
aPos.mDirection = ReverseDirection(aPos.mDirection);
|
|
result = VisualSequence(aPresContext, anchorFrame, aCurrentFrame, &aPos, &needVisualSelection);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
// Select all the lines between the line containing the anchor point and the line containing the current point
|
|
aPos.mJumpLines = PR_TRUE;
|
|
result = SelectLines(aPresContext, selectionDirection,
|
|
anchorNode, anchorFrame, anchorOffset,
|
|
currentNode, aCurrentFrame, currentOffset, aPos);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
// Go to the current point
|
|
PRUint8 currentBaseLevel = NS_GET_BASE_LEVEL(aCurrentFrame);
|
|
// Walk the frames in visual order until we reach the beginning of the line
|
|
aPos.mJumpLines = PR_FALSE;
|
|
if ((currentBaseLevel & 1) == (anchorBaseLevel & 1))
|
|
aPos.mDirection = ReverseDirection(aPos.mDirection);
|
|
aPos.mStartOffset = currentOffset;
|
|
result = VisualSequence(aPresContext, aCurrentFrame, anchorFrame, &aPos, &needVisualSelection);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
// Select from the current point to the edge of the frame
|
|
if (currentLevel & 1)
|
|
mDomSelections[index]->SetDirection(ReverseDirection(selectionDirection));
|
|
|
|
if ((eDirPrevious == selectionDirection) != ((currentLevel & 1) == (currentBaseLevel & 1)))
|
|
result = SelectToEdge(aCurrentFrame, currentContent, 0, currentOffset, PR_TRUE);
|
|
else
|
|
result = SelectToEdge(aCurrentFrame, currentContent, -1, currentOffset, PR_TRUE);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
// restore original selection direction
|
|
// mDomSelections[index]->SetDirection(selectionDirection);
|
|
}
|
|
|
|
// Sometimes we have to lie about the selection direction, so we will have to remember when we are doing so
|
|
mDomSelections[index]->SetTrueDirection(mDomSelections[index]->GetDirection() == selectionDirection);
|
|
|
|
mDomSelections[index]->SetOriginalAnchorPoint(anchorNode, anchorOffset);
|
|
NotifySelectionListeners(nsISelectionController::SELECTION_NORMAL);
|
|
return NS_OK;
|
|
}
|
|
#endif // VISUALSELECTION
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::GetPrevNextBidiLevels(nsPresContext *aPresContext,
|
|
nsIContent *aNode,
|
|
PRUint32 aContentOffset,
|
|
nsIFrame **aPrevFrame,
|
|
nsIFrame **aNextFrame,
|
|
PRUint8 *aPrevLevel,
|
|
PRUint8 *aNextLevel)
|
|
{
|
|
if (!aPrevFrame || !aNextFrame)
|
|
return NS_ERROR_NULL_POINTER;
|
|
// Get the level of the frames on each side
|
|
nsIFrame *currentFrame;
|
|
PRInt32 currentOffset;
|
|
PRInt32 frameStart, frameEnd;
|
|
nsDirection direction;
|
|
nsresult result;
|
|
|
|
*aPrevLevel = *aNextLevel = 0;
|
|
|
|
result = GetFrameForNodeOffset(aNode, aContentOffset, mHint, ¤tFrame, ¤tOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
currentFrame->GetOffsets(frameStart, frameEnd);
|
|
|
|
if (0 == frameStart && 0 == frameEnd)
|
|
direction = eDirPrevious;
|
|
else if (frameStart == currentOffset)
|
|
direction = eDirPrevious;
|
|
else if (frameEnd == currentOffset)
|
|
direction = eDirNext;
|
|
else {
|
|
// we are neither at the beginning nor at the end of the frame, so we have no worries
|
|
*aPrevFrame = *aNextFrame = currentFrame;
|
|
*aPrevLevel = *aNextLevel = NS_GET_EMBEDDING_LEVEL(currentFrame);
|
|
return NS_OK;
|
|
}
|
|
|
|
/*
|
|
we have to find the next or previous *logical* frame.
|
|
|
|
Unfortunately |GetFrameFromDirection| has already been munged to return the next/previous *visual* frame, so we can't use that.
|
|
The following code is taken from there without the Bidi changes.
|
|
|
|
XXX is there a simpler way to do this?
|
|
*/
|
|
|
|
nsIFrame *blockFrame = currentFrame;
|
|
nsIFrame *thisBlock = nsnull;
|
|
PRInt32 thisLine;
|
|
nsILineIteratorNavigator* it; // This is qi'd off a frame, and those aren't
|
|
// refcounted
|
|
result = NS_ERROR_FAILURE;
|
|
while (NS_FAILED(result) && blockFrame)
|
|
{
|
|
thisBlock = blockFrame;
|
|
blockFrame = blockFrame->GetParent();
|
|
if (blockFrame) {
|
|
CallQueryInterface(blockFrame, &it);
|
|
}
|
|
}
|
|
if (!blockFrame || !it)
|
|
return NS_ERROR_FAILURE;
|
|
result = it->FindLineContaining(thisBlock, &thisLine);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (thisLine < 0)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsIFrame *firstFrame;
|
|
nsIFrame *lastFrame;
|
|
nsRect nonUsedRect;
|
|
PRInt32 lineFrameCount;
|
|
PRUint32 lineFlags;
|
|
|
|
result = it->GetLine(thisLine, &firstFrame, &lineFrameCount,nonUsedRect,
|
|
&lineFlags);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
lastFrame = firstFrame;
|
|
|
|
for (;lineFrameCount > 1;lineFrameCount --) {
|
|
lastFrame = lastFrame->GetNextSibling();
|
|
}
|
|
|
|
// GetFirstLeaf
|
|
nsIFrame *lookahead;
|
|
while (1) {
|
|
lookahead = firstFrame->GetFirstChild(nsnull);
|
|
if (!lookahead)
|
|
break; //nothing to do
|
|
firstFrame = lookahead;
|
|
}
|
|
|
|
// GetLastLeaf
|
|
while (1) {
|
|
lookahead = lastFrame->GetFirstChild(nsnull);
|
|
if (!lookahead)
|
|
break; //nothing to do
|
|
lastFrame = lookahead;
|
|
while ((lookahead = lastFrame->GetNextSibling()) != nsnull)
|
|
lastFrame = lookahead;
|
|
}
|
|
//END LINE DATA CODE
|
|
|
|
if (direction == eDirNext && lastFrame == currentFrame) { // End of line: set aPrevFrame to the current frame
|
|
// set aPrevLevel to the embedding level of the current frame
|
|
// set aNextFrame to null
|
|
// set aNextLevel to the paragraph embedding level
|
|
*aPrevFrame = currentFrame;
|
|
*aPrevLevel = NS_GET_EMBEDDING_LEVEL(currentFrame);
|
|
*aNextLevel = NS_GET_BASE_LEVEL(currentFrame);
|
|
*aNextFrame = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
if (direction == eDirPrevious && firstFrame == currentFrame) { // Beginning of line: set aPrevFrame to null
|
|
// set aPrevLevel to the paragraph embedding level
|
|
// set aNextFrame to the current frame
|
|
// set aNextLevel to the embedding level of the current frame
|
|
*aNextFrame = currentFrame;
|
|
*aNextLevel = NS_GET_EMBEDDING_LEVEL(currentFrame);
|
|
*aPrevLevel = NS_GET_BASE_LEVEL(currentFrame);
|
|
*aPrevFrame = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
// Find the adjacent frame
|
|
|
|
nsCOMPtr<nsIBidirectionalEnumerator> frameTraversal;
|
|
nsCOMPtr<nsIFrameTraversal> trav(do_CreateInstance(kFrameTraversalCID,&result));
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
result = trav->NewFrameTraversal(getter_AddRefs(frameTraversal),LEAF, aPresContext, currentFrame);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
nsISupports *isupports = nsnull;
|
|
if (direction == eDirNext)
|
|
result = frameTraversal->Next();
|
|
else
|
|
result = frameTraversal->Prev();
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
result = frameTraversal->CurrentItem(&isupports);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (!isupports)
|
|
return NS_ERROR_NULL_POINTER;
|
|
//we must CAST here to an nsIFrame. nsIFrame doesnt really follow the rules
|
|
//for speed reasons
|
|
nsIFrame *newFrame = (nsIFrame *)isupports;
|
|
|
|
if (direction == eDirNext) {
|
|
*aPrevFrame = currentFrame;
|
|
*aPrevLevel = NS_GET_EMBEDDING_LEVEL(currentFrame);
|
|
*aNextFrame = newFrame;
|
|
*aNextLevel = NS_GET_EMBEDDING_LEVEL(newFrame);
|
|
}
|
|
else {
|
|
*aNextFrame = currentFrame;
|
|
*aNextLevel = NS_GET_EMBEDDING_LEVEL(currentFrame);
|
|
*aPrevFrame = newFrame;
|
|
*aPrevLevel = NS_GET_EMBEDDING_LEVEL(newFrame);
|
|
}
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
NS_IMETHODIMP nsSelection::GetFrameFromLevel(nsPresContext *aPresContext,
|
|
nsIFrame *aFrameIn,
|
|
nsDirection aDirection,
|
|
PRUint8 aBidiLevel,
|
|
nsIFrame **aFrameOut)
|
|
{
|
|
PRUint8 foundLevel = 0;
|
|
nsIFrame *foundFrame = aFrameIn;
|
|
|
|
nsCOMPtr<nsIBidirectionalEnumerator> frameTraversal;
|
|
nsresult result;
|
|
nsCOMPtr<nsIFrameTraversal> trav(do_CreateInstance(kFrameTraversalCID,&result));
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
result = trav->NewFrameTraversal(getter_AddRefs(frameTraversal),LEAF, aPresContext, aFrameIn);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
nsISupports *isupports = nsnull;
|
|
|
|
do {
|
|
*aFrameOut = foundFrame;
|
|
if (aDirection == eDirNext)
|
|
result = frameTraversal->Next();
|
|
else
|
|
result = frameTraversal->Prev();
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
result = frameTraversal->CurrentItem(&isupports);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (!isupports)
|
|
return NS_ERROR_NULL_POINTER;
|
|
//we must CAST here to an nsIFrame. nsIFrame doesnt really follow the rules
|
|
//for speed reasons
|
|
foundFrame = (nsIFrame *)isupports;
|
|
foundLevel = NS_GET_EMBEDDING_LEVEL(foundFrame);
|
|
|
|
} while (foundLevel > aBidiLevel);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::MaintainSelection()
|
|
{
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
nsCOMPtr<nsIDOMRange> range;
|
|
nsresult rv = mDomSelections[index]->GetRangeAt(0, getter_AddRefs(range));
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
if (!range)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
PRInt32 startOffset;
|
|
PRInt32 endOffset;
|
|
range->GetStartContainer(getter_AddRefs(startNode));
|
|
range->GetEndContainer(getter_AddRefs(endNode));
|
|
range->GetStartOffset(&startOffset);
|
|
range->GetEndOffset(&endOffset);
|
|
|
|
mMaintainRange = nsnull;
|
|
NS_NewRange(getter_AddRefs(mMaintainRange));
|
|
if (!mMaintainRange)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
mMaintainRange->SetStart(startNode, startOffset);
|
|
return mMaintainRange->SetEnd(endNode, endOffset);
|
|
}
|
|
|
|
|
|
/** After moving the caret, its Bidi level is set according to the following rules:
|
|
*
|
|
* After moving over a character with left/right arrow, set to the Bidi level of the last moved over character.
|
|
* After Home and End, set to the paragraph embedding level.
|
|
* After up/down arrow, PageUp/Down, set to the lower level of the 2 surrounding characters.
|
|
* After mouse click, set to the level of the current frame.
|
|
*
|
|
* The following two methods use GetPrevNextBidiLevels to determine the new Bidi level.
|
|
* BidiLevelFromMove is called when the caret is moved in response to a keyboard event
|
|
*
|
|
* @param aContext is the presentation context
|
|
* @param aPresShell is the presentation shell
|
|
* @param aNode is the content node
|
|
* @param aContentOffset is the new caret position, as an offset into aNode
|
|
* @param aKeycode is the keyboard event that moved the caret to the new position
|
|
*/
|
|
void nsSelection::BidiLevelFromMove(nsPresContext* aContext,
|
|
nsIPresShell* aPresShell,
|
|
nsIContent *aNode,
|
|
PRUint32 aContentOffset,
|
|
PRUint32 aKeycode)
|
|
{
|
|
PRUint8 firstLevel;
|
|
PRUint8 secondLevel;
|
|
PRUint8 currentLevel;
|
|
nsIFrame* firstFrame=nsnull;
|
|
nsIFrame* secondFrame=nsnull;
|
|
|
|
aPresShell->GetCaretBidiLevel(¤tLevel);
|
|
|
|
switch (aKeycode) {
|
|
|
|
// Right and Left: the new cursor Bidi level is the level of the character moved over
|
|
case nsIDOMKeyEvent::DOM_VK_RIGHT:
|
|
case nsIDOMKeyEvent::DOM_VK_LEFT:
|
|
GetPrevNextBidiLevels(aContext, aNode, aContentOffset, &firstFrame, &secondFrame, &firstLevel, &secondLevel);
|
|
if (HINTLEFT==mHint)
|
|
aPresShell->SetCaretBidiLevel(firstLevel);
|
|
else
|
|
aPresShell->SetCaretBidiLevel(secondLevel);
|
|
break;
|
|
|
|
/*
|
|
// Up and Down: the new cursor Bidi level is the smaller of the two surrounding characters
|
|
case nsIDOMKeyEvent::DOM_VK_UP:
|
|
case nsIDOMKeyEvent::DOM_VK_DOWN:
|
|
GetPrevNextBidiLevels(aContext, aNode, aContentOffset, &firstFrame, &secondFrame, &firstLevel, &secondLevel);
|
|
aPresShell->SetCaretBidiLevel(PR_MIN(firstLevel, secondLevel));
|
|
break;
|
|
*/
|
|
|
|
default:
|
|
aPresShell->UndefineCaretBidiLevel();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* BidiLevelFromClick is called when the caret is repositioned by clicking the mouse
|
|
*
|
|
* @param aNode is the content node
|
|
* @param aContentOffset is the new caret position, as an offset into aNode
|
|
*/
|
|
void nsSelection::BidiLevelFromClick(nsIContent *aNode, PRUint32 aContentOffset)
|
|
{
|
|
nsIFrame* clickInFrame=nsnull;
|
|
PRInt32 OffsetNotUsed;
|
|
|
|
nsresult result = GetFrameForNodeOffset(aNode, aContentOffset, mHint, &clickInFrame, &OffsetNotUsed);
|
|
if (NS_FAILED(result))
|
|
return;
|
|
|
|
mShell->SetCaretBidiLevel(NS_GET_EMBEDDING_LEVEL(clickInFrame));
|
|
}
|
|
|
|
|
|
PRBool
|
|
nsSelection::AdjustForMaintainedSelection(nsIContent *aContent, PRInt32 aOffset)
|
|
{
|
|
// Is the desired content and offset currently in selection?
|
|
// If the double click flag is set then don't continue selection if the
|
|
// desired content and offset are currently inside a selection.
|
|
// This will stop double click then mouse-drag from undoing the desired
|
|
// selecting of a word.
|
|
if (!mMaintainRange)
|
|
return PR_FALSE;
|
|
|
|
nsCOMPtr<nsIDOMNode> rangenode;
|
|
PRInt32 rangeOffset;
|
|
mMaintainRange->GetStartContainer(getter_AddRefs(rangenode));
|
|
mMaintainRange->GetStartOffset(&rangeOffset);
|
|
|
|
nsCOMPtr<nsIDOMNode> domNode = do_QueryInterface(aContent);
|
|
if (domNode)
|
|
{
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
nsCOMPtr<nsIDOMNSRange> nsrange = do_QueryInterface(mMaintainRange);
|
|
if (nsrange)
|
|
{
|
|
PRBool insideSelection = PR_FALSE;
|
|
nsrange->IsPointInRange(domNode, aOffset, &insideSelection);
|
|
|
|
// Done when we find a range that we are in
|
|
if (insideSelection)
|
|
{
|
|
mDomSelections[index]->Collapse(rangenode, rangeOffset);
|
|
mMaintainRange->GetEndContainer(getter_AddRefs(rangenode));
|
|
mMaintainRange->GetEndOffset(&rangeOffset);
|
|
mDomSelections[index]->Extend(rangenode,rangeOffset);
|
|
return PR_TRUE; // dragging in selection aborted
|
|
}
|
|
}
|
|
|
|
PRInt32 relativePosition = nsRange::ComparePoints(rangenode, rangeOffset,
|
|
domNode, aOffset);
|
|
// if == 0 or -1 do nothing if < 0 then we need to swap direction
|
|
if (relativePosition > 0
|
|
&& (mDomSelections[index]->GetDirection() == eDirNext))
|
|
{
|
|
mMaintainRange->GetEndContainer(getter_AddRefs(rangenode));
|
|
mMaintainRange->GetEndOffset(&rangeOffset);
|
|
mDomSelections[index]->Collapse(rangenode, rangeOffset);
|
|
}
|
|
else if (relativePosition < 0
|
|
&& (mDomSelections[index]->GetDirection() == eDirPrevious))
|
|
mDomSelections[index]->Collapse(rangenode, rangeOffset);
|
|
}
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::HandleClick(nsIContent *aNewFocus, PRUint32 aContentOffset,
|
|
PRUint32 aContentEndOffset, PRBool aContinueSelection,
|
|
PRBool aMultipleSelection, PRBool aHint)
|
|
{
|
|
if (!aNewFocus)
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
InvalidateDesiredX();
|
|
|
|
if (!aContinueSelection)
|
|
mMaintainRange = nsnull;
|
|
|
|
mHint = HINT(aHint);
|
|
// Don't take focus when dragging off of a table
|
|
if (!mDragSelectingCells)
|
|
{
|
|
BidiLevelFromClick(aNewFocus, aContentOffset);
|
|
PostReason(nsISelectionListener::MOUSEDOWN_REASON + nsISelectionListener::DRAG_REASON);
|
|
if (aContinueSelection &&
|
|
AdjustForMaintainedSelection(aNewFocus, aContentOffset))
|
|
return NS_OK; //shift clicked to maintained selection. rejected.
|
|
|
|
return TakeFocus(aNewFocus, aContentOffset, aContentEndOffset, aContinueSelection, aMultipleSelection);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::HandleDrag(nsPresContext *aPresContext, nsIFrame *aFrame, nsPoint& aPoint)
|
|
{
|
|
if (!aPresContext || !aFrame)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult result;
|
|
nsIFrame *newFrame = 0;
|
|
nsPoint newPoint;
|
|
|
|
result = ConstrainFrameAndPointToAnchorSubtree(aPresContext, aFrame, aPoint, &newFrame, newPoint);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (!newFrame)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
PRInt32 startPos = 0;
|
|
PRInt32 contentOffsetEnd = 0;
|
|
PRBool beginOfContent;
|
|
nsCOMPtr<nsIContent> newContent;
|
|
|
|
result = newFrame->GetContentAndOffsetsFromPoint(aPresContext, newPoint,
|
|
getter_AddRefs(newContent),
|
|
startPos, contentOffsetEnd, beginOfContent);
|
|
|
|
if ((newFrame->GetStateBits() & NS_FRAME_SELECTED_CONTENT) &&
|
|
AdjustForMaintainedSelection(newContent, startPos))
|
|
return NS_OK;
|
|
|
|
// do we have CSS that changes selection behaviour?
|
|
{
|
|
//add scope for nsCOMPtr
|
|
PRBool changeSelection;
|
|
nsCOMPtr<nsIContent> selectContent;
|
|
PRInt32 newStart, newEnd;
|
|
if (NS_SUCCEEDED(AdjustOffsetsFromStyle(newFrame, &changeSelection, getter_AddRefs(selectContent), &newStart, &newEnd))
|
|
&& changeSelection)
|
|
{
|
|
newContent = selectContent;
|
|
startPos = newStart;
|
|
contentOffsetEnd = newEnd;
|
|
}
|
|
}
|
|
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
#ifdef VISUALSELECTION
|
|
if (aPresContext->BidiEnabled()) {
|
|
PRUint8 level;
|
|
nsPeekOffsetStruct pos;
|
|
//set data using mLimiter to stop on scroll views. If we have a limiter then we stop peeking
|
|
//when we hit scrollable views. If no limiter then just let it go ahead
|
|
pos.SetData(mShell, 0, eSelectDir, eDirNext, startPos, PR_FALSE,
|
|
PR_TRUE, PR_TRUE, mLimiter != nsnull, PR_FALSE);
|
|
mHint = HINT(beginOfContent);
|
|
HINT saveHint = mHint;
|
|
if (NS_GET_EMBEDDING_LEVEL(newFrame) & 1)
|
|
mHint = (mHint==HINTLEFT) ? HINTRIGHT : HINTLEFT;
|
|
pos.mResultContent = newContent;
|
|
pos.mContentOffset = contentOffsetEnd;
|
|
result = VisualSelectFrames(aPresContext, newFrame, pos);
|
|
if (NS_FAILED(result))
|
|
result = HandleClick(newContent, startPos, contentOffsetEnd, PR_TRUE,
|
|
PR_FALSE, beginOfContent);
|
|
mHint = saveHint;
|
|
}
|
|
else
|
|
#endif // VISUALSELECTION
|
|
result = HandleClick(newContent, startPos, contentOffsetEnd, PR_TRUE,
|
|
PR_FALSE, beginOfContent);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::StartAutoScrollTimer(nsPresContext *aPresContext, nsIView *aView, nsPoint& aPoint, PRUint32 aDelay)
|
|
{
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
return mDomSelections[index]->StartAutoScrollTimer(aPresContext, aView, aPoint, aDelay);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::StopAutoScrollTimer()
|
|
{
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
return mDomSelections[index]->StopAutoScrollTimer();
|
|
}
|
|
|
|
/**
|
|
hard to go from nodes to frames, easy the other way!
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsSelection::TakeFocus(nsIContent *aNewFocus, PRUint32 aContentOffset,
|
|
PRUint32 aContentEndOffset, PRBool aContinueSelection, PRBool aMultipleSelection)
|
|
{
|
|
if (!aNewFocus)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
STATUS_CHECK_RETURN_MACRO();
|
|
|
|
if (!IsValidSelectionPoint(this,aNewFocus))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// Clear all table selection data
|
|
mSelectingTableCellMode = 0;
|
|
mDragSelectingCells = PR_FALSE;
|
|
mStartSelectedCell = nsnull;
|
|
mEndSelectedCell = nsnull;
|
|
mAppendStartSelectedCell = nsnull;
|
|
|
|
//HACKHACKHACK
|
|
if (!aNewFocus->GetParent())
|
|
return NS_ERROR_FAILURE;
|
|
//END HACKHACKHACK /checking for root frames/content
|
|
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
nsCOMPtr<nsIDOMNode> domNode = do_QueryInterface(aNewFocus);
|
|
//traverse through document and unselect crap here
|
|
if (!aContinueSelection){ //single click? setting cursor down
|
|
PRUint32 batching = mBatching;//hack to use the collapse code.
|
|
PRBool changes = mChangesDuringBatching;
|
|
mBatching = 1;
|
|
|
|
if (aMultipleSelection){
|
|
nsCOMPtr<nsIDOMRange> newRange;
|
|
NS_NewRange(getter_AddRefs(newRange));
|
|
|
|
newRange->SetStart(domNode,aContentOffset);
|
|
newRange->SetEnd(domNode,aContentOffset);
|
|
mDomSelections[index]->AddRange(newRange);
|
|
mBatching = batching;
|
|
mChangesDuringBatching = changes;
|
|
mDomSelections[index]->SetOriginalAnchorPoint(domNode,aContentOffset);
|
|
}
|
|
else
|
|
{
|
|
PRBool oldDesiredXSet = mDesiredXSet; //need to keep old desired X if it was set.
|
|
mDomSelections[index]->Collapse(domNode, aContentOffset);
|
|
mDesiredXSet = oldDesiredXSet; //now reset desired X back.
|
|
mBatching = batching;
|
|
mChangesDuringBatching = changes;
|
|
}
|
|
if (aContentEndOffset != aContentOffset)
|
|
mDomSelections[index]->Extend(domNode,aContentEndOffset);
|
|
|
|
//find out if we are inside a table. if so, find out which one and which cell
|
|
//once we do that, the next time we get a takefocus, check the parent tree.
|
|
//if we are no longer inside same table ,cell then switch to table selection mode.
|
|
// BUT only do this in an editor
|
|
|
|
PRInt16 displaySelection;
|
|
nsresult result = mShell->GetSelectionFlags(&displaySelection);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
// Editor has DISPLAY_ALL selection type
|
|
if (displaySelection == nsISelectionDisplay::DISPLAY_ALL)
|
|
{
|
|
mCellParent = GetCellParent(domNode);
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
if (mCellParent)
|
|
printf(" * TakeFocus - Collapsing into new cell\n");
|
|
#endif
|
|
}
|
|
}
|
|
else {
|
|
// Now update the range list:
|
|
if (aContinueSelection && domNode)
|
|
{
|
|
PRInt32 offset;
|
|
nsIDOMNode *cellparent = GetCellParent(domNode);
|
|
if (mCellParent && cellparent && cellparent != mCellParent) //switch to cell selection mode
|
|
{
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf(" * TakeFocus - moving into new cell\n");
|
|
#endif
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
nsCOMPtr<nsIContent> parentContent;
|
|
nsMouseEvent event;
|
|
nsresult result;
|
|
|
|
// Start selecting in the cell we were in before
|
|
result = ParentOffset(mCellParent, getter_AddRefs(parent),&offset);
|
|
parentContent = do_QueryInterface(parent);
|
|
if (parentContent)
|
|
result = HandleTableSelection(parentContent, offset, nsISelectionPrivate::TABLESELECTION_CELL, &event);
|
|
|
|
// Find the parent of this new cell and extend selection to it
|
|
result = ParentOffset(cellparent,getter_AddRefs(parent),&offset);
|
|
parentContent = do_QueryInterface(parent);
|
|
|
|
// XXXX We need to REALLY get the current key shift state
|
|
// (we'd need to add event listener -- let's not bother for now)
|
|
event.isShift = PR_FALSE; //aContinueSelection;
|
|
if (parentContent)
|
|
{
|
|
mCellParent = cellparent;
|
|
// Continue selection into next cell
|
|
result = HandleTableSelection(parentContent, offset, nsISelectionPrivate::TABLESELECTION_CELL, &event);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// XXXX Problem: Shift+click in browser is appending text selection to selected table!!!
|
|
// is this the place to erase seleced cells ?????
|
|
if (mDomSelections[index]->GetDirection() == eDirNext && aContentEndOffset > aContentOffset) //didnt go far enough
|
|
{
|
|
mDomSelections[index]->Extend(domNode, aContentEndOffset);//this will only redraw the diff
|
|
}
|
|
else
|
|
mDomSelections[index]->Extend(domNode, aContentOffset);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Don't notify selection listeners if batching is on:
|
|
if (GetBatching())
|
|
return NS_OK;
|
|
return NotifySelectionListeners(nsISelectionController::SELECTION_NORMAL);
|
|
}
|
|
|
|
|
|
|
|
NS_METHOD
|
|
nsSelection::LookUpSelection(nsIContent *aContent, PRInt32 aContentOffset, PRInt32 aContentLength,
|
|
SelectionDetails **aReturnDetails, PRBool aSlowCheck)
|
|
{
|
|
if (!aContent || !aReturnDetails)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
STATUS_CHECK_RETURN_MACRO();
|
|
|
|
|
|
*aReturnDetails = nsnull;
|
|
PRInt8 j;
|
|
for (j = (PRInt8) 0; j < (PRInt8)nsISelectionController::NUM_SELECTIONTYPES; j++){
|
|
if (mDomSelections[j])
|
|
mDomSelections[j]->LookUpSelection(aContent, aContentOffset, aContentLength, aReturnDetails, (SelectionType)(1<<j), aSlowCheck);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_METHOD
|
|
nsSelection::SetMouseDownState(PRBool aState)
|
|
{
|
|
if (mMouseDownState == aState)
|
|
return NS_OK;
|
|
mMouseDownState = aState;
|
|
if (!mMouseDownState)
|
|
{
|
|
PRInt16 reason;
|
|
if (aState)
|
|
reason = nsISelectionListener::MOUSEDOWN_REASON;
|
|
else
|
|
reason = nsISelectionListener::MOUSEUP_REASON;
|
|
PostReason(reason);//not a drag reason
|
|
NotifySelectionListeners(nsISelectionController::SELECTION_NORMAL);//notify that reason is mouse up please.
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_METHOD
|
|
nsSelection::GetMouseDownState(PRBool *aState)
|
|
{
|
|
if (!aState)
|
|
return NS_ERROR_NULL_POINTER;
|
|
*aState = mMouseDownState;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::GetSelection(SelectionType aType, nsISelection **aDomSelection)
|
|
{
|
|
if (!aDomSelection)
|
|
return NS_ERROR_NULL_POINTER;
|
|
PRInt8 index = GetIndexFromSelectionType(aType);
|
|
if (index < 0)
|
|
return NS_ERROR_INVALID_ARG;
|
|
*aDomSelection = NS_REINTERPRET_CAST(nsISelection *,mDomSelections[index]);
|
|
(*aDomSelection)->AddRef();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::ScrollSelectionIntoView(SelectionType aType, SelectionRegion aRegion, PRBool aIsSynchronous)
|
|
{
|
|
PRInt8 index = GetIndexFromSelectionType(aType);
|
|
if (index < 0)
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
if (!mDomSelections[index])
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
return mDomSelections[index]->ScrollIntoView(aRegion, aIsSynchronous);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::RepaintSelection(nsPresContext* aPresContext, SelectionType aType)
|
|
{
|
|
PRInt8 index = GetIndexFromSelectionType(aType);
|
|
if (index < 0)
|
|
return NS_ERROR_INVALID_ARG;
|
|
if (!mDomSelections[index])
|
|
return NS_ERROR_NULL_POINTER;
|
|
return mDomSelections[index]->Repaint(aPresContext);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::GetFrameForNodeOffset(nsIContent *aNode, PRInt32 aOffset, HINT aHint, nsIFrame **aReturnFrame, PRInt32 *aReturnOffset)
|
|
{
|
|
if (!aNode || !aReturnFrame || !aReturnOffset)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
if (aOffset < 0)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
*aReturnOffset = aOffset;
|
|
|
|
nsresult result = NS_OK;
|
|
|
|
nsCOMPtr<nsIContent> theNode = aNode;
|
|
|
|
if (aNode->IsContentOfType(nsIContent::eELEMENT))
|
|
{
|
|
PRInt32 childIndex = 0;
|
|
PRInt32 numChildren = 0;
|
|
|
|
if (aHint == HINTLEFT)
|
|
{
|
|
if (aOffset > 0)
|
|
childIndex = aOffset - 1;
|
|
else
|
|
childIndex = aOffset;
|
|
}
|
|
else // HINTRIGHT
|
|
{
|
|
numChildren = theNode->GetChildCount();
|
|
|
|
if (aOffset >= numChildren)
|
|
{
|
|
if (numChildren > 0)
|
|
childIndex = numChildren - 1;
|
|
else
|
|
childIndex = 0;
|
|
}
|
|
else
|
|
childIndex = aOffset;
|
|
}
|
|
|
|
nsCOMPtr<nsIContent> childNode = theNode->GetChildAt(childIndex);
|
|
|
|
if (!childNode)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
theNode = childNode;
|
|
|
|
#ifdef DONT_DO_THIS_YET
|
|
// XXX: We can't use this code yet because the hinting
|
|
// can cause us to attatch to the wrong line frame.
|
|
|
|
// Now that we have the child node, check if it too
|
|
// can contain children. If so, call this method again!
|
|
|
|
if (theNode->IsContentOfType(nsIContent::eELEMENT))
|
|
{
|
|
PRInt32 newOffset = 0;
|
|
|
|
if (aOffset > childIndex)
|
|
{
|
|
numChildren = theNode->GetChildCount();
|
|
|
|
newOffset = numChildren;
|
|
}
|
|
|
|
return GetFrameForNodeOffset(theNode, newOffset, aHint, aReturnFrame,aReturnOffset);
|
|
}
|
|
else
|
|
#endif // DONT_DO_THIS_YET
|
|
{
|
|
// Check to see if theNode is a text node. If it is, translate
|
|
// aOffset into an offset into the text node.
|
|
|
|
nsCOMPtr<nsIDOMText> textNode = do_QueryInterface(theNode);
|
|
|
|
if (textNode)
|
|
{
|
|
if (aOffset > childIndex)
|
|
{
|
|
PRUint32 textLength = 0;
|
|
|
|
result = textNode->GetLength(&textLength);
|
|
|
|
if (NS_FAILED(result))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
*aReturnOffset = (PRInt32)textLength;
|
|
}
|
|
else
|
|
*aReturnOffset = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
result = mShell->GetPrimaryFrameFor(theNode, aReturnFrame);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (!*aReturnFrame)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
// find the child frame containing the offset we want
|
|
result = (*aReturnFrame)->GetChildFrameContainingOffset(*aReturnOffset, aHint, &aOffset, aReturnFrame);
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::CommonPageMove(PRBool aForward,
|
|
PRBool aExtend,
|
|
nsIScrollableView *aScrollableView,
|
|
nsIFrameSelection *aFrameSel)
|
|
{
|
|
if ( !aScrollableView || !aFrameSel)
|
|
return NS_ERROR_NULL_POINTER;
|
|
// expected behavior for PageMove is to scroll AND move the caret
|
|
// and remain relative position of the caret in view. see Bug 4302.
|
|
|
|
nsresult result;
|
|
//get the frame from the scrollable view
|
|
|
|
nsIFrame* mainframe = nsnull;
|
|
|
|
// The view's client data points back to its frame
|
|
nsIView *scrolledView;
|
|
result = aScrollableView->GetScrolledView(scrolledView);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (scrolledView)
|
|
mainframe = NS_STATIC_CAST(nsIFrame*, scrolledView->GetClientData());
|
|
|
|
if (!mainframe)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// find out where we are; determine amount to page up/down
|
|
nsRect viewRect = aScrollableView->View()->GetBounds();
|
|
|
|
// find out where the caret is.
|
|
// we should know mDesiredX value of nsSelection, but I havent seen that behavior in other windows applications yet.
|
|
nsCOMPtr<nsISelection> domSel;
|
|
aFrameSel->GetSelection(nsISelectionController::SELECTION_NORMAL, getter_AddRefs(domSel));
|
|
|
|
if (!domSel)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
nsCOMPtr<nsICaret> caret;
|
|
nsRect caretPos;
|
|
PRBool isCollapsed;
|
|
result = mShell->GetCaret(getter_AddRefs(caret));
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsIView *caretView;
|
|
result = caret->GetCaretCoordinates(nsICaret::eClosestViewCoordinates, domSel, &caretPos, &isCollapsed, &caretView);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//need to adjust caret jump by percentage scroll
|
|
viewRect.height = (PRInt32) (viewRect.height * PAGE_SCROLL_PERCENT);
|
|
|
|
if (aForward)
|
|
caretPos.y += viewRect.height;
|
|
else
|
|
caretPos.y -= viewRect.height;
|
|
|
|
|
|
if (caretView)
|
|
{
|
|
caretPos += caretView->GetOffsetTo(scrolledView);
|
|
}
|
|
|
|
// get a content at desired location
|
|
nsCOMPtr<nsIContent> content;
|
|
PRInt32 startOffset, endOffset;
|
|
PRBool beginFrameContent;
|
|
nsPoint desiredPoint;
|
|
desiredPoint.x = caretPos.x;
|
|
desiredPoint.y = caretPos.y + caretPos.height/2;
|
|
nsPresContext *context = mShell->GetPresContext();
|
|
result = mainframe->GetContentAndOffsetsFromPoint(context, desiredPoint, getter_AddRefs(content), startOffset, endOffset, beginFrameContent);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (!content)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
// scroll one page
|
|
|
|
aScrollableView->ScrollByPages(0, aForward ? 1 : -1);
|
|
|
|
// place the caret
|
|
result = aFrameSel->HandleClick(content, startOffset, startOffset, aExtend, PR_FALSE, PR_TRUE);
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::CharacterMove(PRBool aForward, PRBool aExtend)
|
|
{
|
|
if (aForward)
|
|
return MoveCaret(nsIDOMKeyEvent::DOM_VK_RIGHT,aExtend,eSelectCharacter);
|
|
else
|
|
return MoveCaret(nsIDOMKeyEvent::DOM_VK_LEFT,aExtend,eSelectCharacter);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::WordMove(PRBool aForward, PRBool aExtend)
|
|
{
|
|
if (aForward)
|
|
return MoveCaret(nsIDOMKeyEvent::DOM_VK_RIGHT,aExtend,eSelectWord);
|
|
else
|
|
return MoveCaret(nsIDOMKeyEvent::DOM_VK_LEFT,aExtend,eSelectWord);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::LineMove(PRBool aForward, PRBool aExtend)
|
|
{
|
|
if (aForward)
|
|
return MoveCaret(nsIDOMKeyEvent::DOM_VK_DOWN,aExtend,eSelectLine);
|
|
else
|
|
return MoveCaret(nsIDOMKeyEvent::DOM_VK_UP,aExtend,eSelectLine);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::IntraLineMove(PRBool aForward, PRBool aExtend)
|
|
{
|
|
if (aForward)
|
|
return MoveCaret(nsIDOMKeyEvent::DOM_VK_END,aExtend,eSelectLine);
|
|
else
|
|
return MoveCaret(nsIDOMKeyEvent::DOM_VK_HOME,aExtend,eSelectLine);
|
|
}
|
|
|
|
NS_IMETHODIMP nsSelection::SelectAll()
|
|
{
|
|
nsCOMPtr<nsIContent> rootContent;
|
|
if (mLimiter)
|
|
{
|
|
rootContent = mLimiter;//addrefit
|
|
}
|
|
else
|
|
{
|
|
nsIDocument *doc = mShell->GetDocument();
|
|
if (!doc)
|
|
return NS_ERROR_FAILURE;
|
|
rootContent = doc->GetRootContent();
|
|
if (!rootContent)
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
PRInt32 numChildren = rootContent->GetChildCount();
|
|
PostReason(nsISelectionListener::NO_REASON);
|
|
return TakeFocus(mLimiter, 0, numChildren, PR_FALSE, PR_FALSE);
|
|
}
|
|
|
|
//////////END FRAMESELECTION
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::StartBatchChanges()
|
|
{
|
|
nsresult result(NS_OK);
|
|
mBatching++;
|
|
return result;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::EndBatchChanges()
|
|
{
|
|
nsresult result(NS_OK);
|
|
mBatching--;
|
|
NS_ASSERTION(mBatching >=0,"Bad mBatching");
|
|
if (mBatching == 0 && mChangesDuringBatching){
|
|
mChangesDuringBatching = PR_FALSE;
|
|
NotifySelectionListeners(nsISelectionController::SELECTION_NORMAL);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsSelection::NotifySelectionListeners(SelectionType aType)
|
|
{
|
|
PRInt8 index = GetIndexFromSelectionType(aType);
|
|
if (index >=0)
|
|
{
|
|
return mDomSelections[index]->NotifySelectionListeners();
|
|
}
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::FrameOrParentHasSpecialSelectionStyle(nsIFrame* aFrame, PRUint8 aSelectionStyle, nsIFrame* *foundFrame)
|
|
{
|
|
nsIFrame* thisFrame = aFrame;
|
|
|
|
while (thisFrame)
|
|
{
|
|
if (thisFrame->GetStyleUIReset()->mUserSelect == aSelectionStyle)
|
|
{
|
|
*foundFrame = thisFrame;
|
|
return NS_OK;
|
|
}
|
|
|
|
thisFrame = thisFrame->GetParent();
|
|
}
|
|
|
|
*foundFrame = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
// Start of Table Selection methods
|
|
|
|
static PRBool IsCell(nsIContent *aContent)
|
|
{
|
|
return ((aContent->Tag() == nsHTMLAtoms::td ||
|
|
aContent->Tag() == nsHTMLAtoms::th) &&
|
|
aContent->IsContentOfType(nsIContent::eHTML));
|
|
}
|
|
|
|
nsITableCellLayout*
|
|
nsSelection::GetCellLayout(nsIContent *aCellContent)
|
|
{
|
|
// Get frame for cell
|
|
nsIFrame *cellFrame = nsnull;
|
|
mShell->GetPrimaryFrameFor(aCellContent, &cellFrame);
|
|
if (!cellFrame)
|
|
return nsnull;
|
|
|
|
nsITableCellLayout *cellLayoutObject = nsnull;
|
|
CallQueryInterface(cellFrame, &cellLayoutObject);
|
|
|
|
return cellLayoutObject;
|
|
}
|
|
|
|
nsITableLayout*
|
|
nsSelection::GetTableLayout(nsIContent *aTableContent)
|
|
{
|
|
// Get frame for table
|
|
nsIFrame *tableFrame = nsnull;
|
|
mShell->GetPrimaryFrameFor(aTableContent, &tableFrame);
|
|
if (!tableFrame)
|
|
return nsnull;
|
|
|
|
nsITableLayout *tableLayoutObject = nsnull;
|
|
CallQueryInterface(tableFrame, &tableLayoutObject);
|
|
|
|
return tableLayoutObject;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::ClearNormalSelection()
|
|
{
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
return mDomSelections[index]->RemoveAllRanges();
|
|
}
|
|
|
|
// Table selection support.
|
|
// TODO: Separate table methods into a separate nsITableSelection interface
|
|
nsresult
|
|
nsSelection::HandleTableSelection(nsIContent *aParentContent, PRInt32 aContentOffset, PRInt32 aTarget, nsMouseEvent *aMouseEvent)
|
|
{
|
|
NS_ENSURE_TRUE(aParentContent, NS_ERROR_NULL_POINTER);
|
|
NS_ENSURE_TRUE(aMouseEvent, NS_ERROR_NULL_POINTER);
|
|
|
|
if (mMouseDownState && mDragSelectingCells && (aTarget & nsISelectionPrivate::TABLESELECTION_TABLE))
|
|
{
|
|
// We were selecting cells and user drags mouse in table border or inbetween cells,
|
|
// just do nothing
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIDOMNode> parentNode = do_QueryInterface(aParentContent);
|
|
if (!parentNode)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsresult result = NS_OK;
|
|
|
|
nsIContent *childContent = aParentContent->GetChildAt(aContentOffset);
|
|
nsCOMPtr<nsIDOMNode> childNode = do_QueryInterface(childContent);
|
|
if (!childNode)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// When doing table selection, always set the direction to next so
|
|
// we can be sure that anchorNode's offset always points to the
|
|
// selected cell
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
mDomSelections[index]->SetDirection(eDirNext);
|
|
|
|
// Stack-class to wrap all table selection changes in
|
|
// BeginBatchChanges() / EndBatchChanges()
|
|
nsSelectionBatcher selectionBatcher(mDomSelections[index]);
|
|
|
|
PRInt32 startRowIndex, startColIndex, curRowIndex, curColIndex;
|
|
if (mMouseDownState && mDragSelectingCells)
|
|
{
|
|
// We are drag-selecting
|
|
if (aTarget != nsISelectionPrivate::TABLESELECTION_TABLE)
|
|
{
|
|
// If dragging in the same cell as last event, do nothing
|
|
if (mEndSelectedCell == childContent)
|
|
return NS_OK;
|
|
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf(" mStartSelectedCell = %x, mEndSelectedCell = %x, childContent = %x \n", mStartSelectedCell, mEndSelectedCell, childContent);
|
|
#endif
|
|
// aTarget can be any "cell mode",
|
|
// so we can easily drag-select rows and columns
|
|
// Once we are in row or column mode,
|
|
// we can drift into any cell to stay in that mode
|
|
// even if aTarget = TABLESELECTION_CELL
|
|
|
|
if (mSelectingTableCellMode == nsISelectionPrivate::TABLESELECTION_ROW ||
|
|
mSelectingTableCellMode == nsISelectionPrivate::TABLESELECTION_COLUMN)
|
|
{
|
|
if (mEndSelectedCell)
|
|
{
|
|
// Also check if cell is in same row/col
|
|
result = GetCellIndexes(mEndSelectedCell, startRowIndex, startColIndex);
|
|
if (NS_FAILED(result)) return result;
|
|
result = GetCellIndexes(childContent, curRowIndex, curColIndex);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf(" curRowIndex = %d, startRowIndex = %d, curColIndex = %d, startColIndex = %d\n", curRowIndex, startRowIndex, curColIndex, startColIndex);
|
|
#endif
|
|
if ((mSelectingTableCellMode == nsISelectionPrivate::TABLESELECTION_ROW && startRowIndex == curRowIndex) ||
|
|
(mSelectingTableCellMode == nsISelectionPrivate::TABLESELECTION_COLUMN && startColIndex == curColIndex))
|
|
return NS_OK;
|
|
}
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf(" Dragged into a new column or row\n");
|
|
#endif
|
|
// Continue dragging row or column selection
|
|
return SelectRowOrColumn(childContent, mSelectingTableCellMode);
|
|
}
|
|
else if (mSelectingTableCellMode == nsISelectionPrivate::TABLESELECTION_CELL)
|
|
{
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf("HandleTableSelection: Dragged into a new cell\n");
|
|
#endif
|
|
// Trick for quick selection of rows and columns
|
|
// Hold down shift, then start selecting in one direction
|
|
// If next cell dragged into is in same row, select entire row,
|
|
// if next cell is in same column, select entire column
|
|
if (mStartSelectedCell && aMouseEvent->isShift)
|
|
{
|
|
result = GetCellIndexes(mStartSelectedCell, startRowIndex, startColIndex);
|
|
if (NS_FAILED(result)) return result;
|
|
result = GetCellIndexes(childContent, curRowIndex, curColIndex);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
if (startRowIndex == curRowIndex ||
|
|
startColIndex == curColIndex)
|
|
{
|
|
// Force new selection block
|
|
mStartSelectedCell = nsnull;
|
|
mDomSelections[index]->RemoveAllRanges();
|
|
|
|
if (startRowIndex == curRowIndex)
|
|
mSelectingTableCellMode = nsISelectionPrivate::TABLESELECTION_ROW;
|
|
else
|
|
mSelectingTableCellMode = nsISelectionPrivate::TABLESELECTION_COLUMN;
|
|
|
|
return SelectRowOrColumn(childContent, mSelectingTableCellMode);
|
|
}
|
|
}
|
|
|
|
// Reselect block of cells to new end location
|
|
return SelectBlockOfCells(mStartSelectedCell, childContent);
|
|
}
|
|
}
|
|
// Do nothing if dragging in table, but outside a cell
|
|
return NS_OK;
|
|
}
|
|
else
|
|
{
|
|
// Not dragging -- mouse event is down or up
|
|
if (mMouseDownState)
|
|
{
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf("HandleTableSelection: Mouse down event\n");
|
|
#endif
|
|
// Clear cell we stored in mouse-down
|
|
mUnselectCellOnMouseUp = nsnull;
|
|
|
|
if (aTarget == nsISelectionPrivate::TABLESELECTION_CELL)
|
|
{
|
|
PRBool isSelected = PR_FALSE;
|
|
|
|
// Check if we have other selected cells
|
|
nsCOMPtr<nsIDOMNode> previousCellNode;
|
|
GetFirstSelectedCellAndRange(getter_AddRefs(previousCellNode), nsnull);
|
|
if (previousCellNode)
|
|
{
|
|
// We have at least 1 other selected cell
|
|
|
|
// Check if new cell is already selected
|
|
nsIFrame *cellFrame = nsnull;
|
|
result = mShell->GetPrimaryFrameFor(childContent, &cellFrame);
|
|
if (NS_FAILED(result)) return result;
|
|
if (!cellFrame) return NS_ERROR_NULL_POINTER;
|
|
result = cellFrame->GetSelected(&isSelected);
|
|
if (NS_FAILED(result)) return result;
|
|
}
|
|
else
|
|
{
|
|
// No cells selected -- remove non-cell selection
|
|
mDomSelections[index]->RemoveAllRanges();
|
|
}
|
|
mDragSelectingCells = PR_TRUE; // Signal to start drag-cell-selection
|
|
mSelectingTableCellMode = aTarget;
|
|
// Set start for new drag-selection block (not appended)
|
|
mStartSelectedCell = childContent;
|
|
// The initial block end is same as the start
|
|
mEndSelectedCell = childContent;
|
|
|
|
if (isSelected)
|
|
{
|
|
// Remember this cell to (possibly) unselect it on mouseup
|
|
mUnselectCellOnMouseUp = childContent;
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf("HandleTableSelection: Saving mUnselectCellOnMouseUp\n");
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
// Select an unselected cell
|
|
// but first remove existing selection if not in same table
|
|
nsCOMPtr<nsIContent> previousCellContent = do_QueryInterface(previousCellNode);
|
|
if (previousCellContent && !IsInSameTable(previousCellContent, childContent, nsnull))
|
|
{
|
|
mDomSelections[index]->RemoveAllRanges();
|
|
// Reset selection mode that is cleared in RemoveAllRanges
|
|
mSelectingTableCellMode = aTarget;
|
|
}
|
|
|
|
nsCOMPtr<nsIDOMElement> cellElement = do_QueryInterface(childContent);
|
|
return SelectCellElement(cellElement);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
else if (aTarget == nsISelectionPrivate::TABLESELECTION_TABLE)
|
|
{
|
|
//TODO: We currently select entire table when clicked between cells,
|
|
// should we restrict to only around border?
|
|
// *** How do we get location data for cell and click?
|
|
mDragSelectingCells = PR_FALSE;
|
|
mStartSelectedCell = nsnull;
|
|
mEndSelectedCell = nsnull;
|
|
|
|
// Remove existing selection and select the table
|
|
mDomSelections[index]->RemoveAllRanges();
|
|
return CreateAndAddRange(parentNode, aContentOffset);
|
|
}
|
|
else if (aTarget == nsISelectionPrivate::TABLESELECTION_ROW || aTarget == nsISelectionPrivate::TABLESELECTION_COLUMN)
|
|
{
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf("aTarget == %d\n", aTarget);
|
|
#endif
|
|
|
|
// Start drag-selecting mode so multiple rows/cols can be selected
|
|
// Note: Currently, nsFrame::GetDataForTableSelection
|
|
// will never call us for row or column selection on mouse down
|
|
mDragSelectingCells = PR_TRUE;
|
|
|
|
// Force new selection block
|
|
mStartSelectedCell = nsnull;
|
|
mDomSelections[index]->RemoveAllRanges();
|
|
// Always do this AFTER RemoveAllRanges
|
|
mSelectingTableCellMode = aTarget;
|
|
return SelectRowOrColumn(childContent, aTarget);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf("HandleTableSelection: Mouse UP event. mDragSelectingCells=%d, mStartSelectedCell=%d\n", mDragSelectingCells, mStartSelectedCell);
|
|
#endif
|
|
// First check if we are extending a block selection
|
|
PRInt32 rangeCount;
|
|
result = mDomSelections[index]->GetRangeCount(&rangeCount);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (rangeCount > 0 && aMouseEvent->isShift &&
|
|
mAppendStartSelectedCell && mAppendStartSelectedCell != childContent)
|
|
{
|
|
// Shift key is down: append a block selection
|
|
mDragSelectingCells = PR_FALSE;
|
|
return SelectBlockOfCells(mAppendStartSelectedCell, childContent);
|
|
}
|
|
|
|
if (mDragSelectingCells)
|
|
mAppendStartSelectedCell = mStartSelectedCell;
|
|
|
|
mDragSelectingCells = PR_FALSE;
|
|
mStartSelectedCell = nsnull;
|
|
mEndSelectedCell = nsnull;
|
|
|
|
// Any other mouseup actions require that Ctrl or Cmd key is pressed
|
|
// else stop table selection mode
|
|
PRBool doMouseUpAction = PR_FALSE;
|
|
#if defined(XP_MAC) || defined(XP_MACOSX)
|
|
doMouseUpAction = aMouseEvent->isMeta;
|
|
#else
|
|
doMouseUpAction = aMouseEvent->isControl;
|
|
#endif
|
|
if (!doMouseUpAction)
|
|
{
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf("HandleTableSelection: Ending cell selection on mouseup: mAppendStartSelectedCell=%d\n", mAppendStartSelectedCell);
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
// Unselect a cell only if it wasn't
|
|
// just selected on mousedown
|
|
if( childContent == mUnselectCellOnMouseUp)
|
|
{
|
|
// Scan ranges to find the cell to unselect (the selection range to remove)
|
|
nsCOMPtr<nsIDOMNode> previousCellParent;
|
|
nsCOMPtr<nsIDOMRange> range;
|
|
PRInt32 offset;
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf("HandleTableSelection: Unselecting mUnselectCellOnMouseUp; rangeCount=%d\n", rangeCount);
|
|
#endif
|
|
for( PRInt32 i = 0; i < rangeCount; i++)
|
|
{
|
|
result = mDomSelections[index]->GetRangeAt(i, getter_AddRefs(range));
|
|
if (NS_FAILED(result)) return result;
|
|
if (!range) return NS_ERROR_NULL_POINTER;
|
|
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
result = range->GetStartContainer(getter_AddRefs(parent));
|
|
if (NS_FAILED(result)) return result;
|
|
if (!parent) return NS_ERROR_NULL_POINTER;
|
|
|
|
range->GetStartOffset(&offset);
|
|
// Be sure previous selection is a table cell
|
|
nsCOMPtr<nsIContent> parentContent = do_QueryInterface(parent);
|
|
nsCOMPtr<nsIContent> child = parentContent->GetChildAt(offset);
|
|
if (child && IsCell(child))
|
|
previousCellParent = parent;
|
|
|
|
// We're done if we didn't find parent of a previously-selected cell
|
|
if (!previousCellParent) break;
|
|
|
|
if (previousCellParent == parentNode && offset == aContentOffset)
|
|
{
|
|
// Cell is already selected
|
|
if (rangeCount == 1)
|
|
{
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf("HandleTableSelection: Unselecting single selected cell\n");
|
|
#endif
|
|
// This was the only cell selected.
|
|
// Collapse to "normal" selection inside the cell
|
|
mStartSelectedCell = nsnull;
|
|
mEndSelectedCell = nsnull;
|
|
mAppendStartSelectedCell = nsnull;
|
|
//TODO: We need a "Collapse to just before deepest child" routine
|
|
// Even better, should we collapse to just after the LAST deepest child
|
|
// (i.e., at the end of the cell's contents)?
|
|
return mDomSelections[index]->Collapse(childNode, 0);
|
|
}
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
printf("HandleTableSelection: Removing cell from multi-cell selection\n");
|
|
#endif
|
|
// Unselecting the start of previous block
|
|
// XXX What do we use now!
|
|
if (childContent == mAppendStartSelectedCell)
|
|
mAppendStartSelectedCell = nsnull;
|
|
|
|
// Deselect cell by removing its range from selection
|
|
return mDomSelections[index]->RemoveRange(range);
|
|
}
|
|
}
|
|
mUnselectCellOnMouseUp = nsnull;
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::SelectBlockOfCells(nsIContent *aStartCell, nsIContent *aEndCell)
|
|
{
|
|
NS_ENSURE_TRUE(aStartCell, NS_ERROR_NULL_POINTER);
|
|
NS_ENSURE_TRUE(aEndCell, NS_ERROR_NULL_POINTER);
|
|
mEndSelectedCell = aEndCell;
|
|
|
|
nsCOMPtr<nsIContent> startCell;
|
|
nsresult result = NS_OK;
|
|
|
|
// If new end cell is in a different table, do nothing
|
|
nsCOMPtr<nsIContent> table;
|
|
if (!IsInSameTable(aStartCell, aEndCell, getter_AddRefs(table)))
|
|
return NS_OK;
|
|
|
|
// Get starting and ending cells' location in the cellmap
|
|
PRInt32 startRowIndex, startColIndex, endRowIndex, endColIndex;
|
|
result = GetCellIndexes(aStartCell, startRowIndex, startColIndex);
|
|
if(NS_FAILED(result)) return result;
|
|
result = GetCellIndexes(aEndCell, endRowIndex, endColIndex);
|
|
if(NS_FAILED(result)) return result;
|
|
|
|
// Get TableLayout interface to access cell data based on cellmap location
|
|
// frames are not ref counted, so don't use an nsCOMPtr
|
|
nsITableLayout *tableLayoutObject = GetTableLayout(table);
|
|
if (!tableLayoutObject) return NS_ERROR_FAILURE;
|
|
|
|
PRInt32 curRowIndex, curColIndex;
|
|
|
|
if (mDragSelectingCells)
|
|
{
|
|
// Drag selecting: remove selected cells outside of new block limits
|
|
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
|
|
nsCOMPtr<nsIDOMNode> cellNode;
|
|
nsCOMPtr<nsIDOMRange> range;
|
|
result = GetFirstSelectedCellAndRange(getter_AddRefs(cellNode), getter_AddRefs(range));
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
PRInt32 minRowIndex = PR_MIN(startRowIndex, endRowIndex);
|
|
PRInt32 maxRowIndex = PR_MAX(startRowIndex, endRowIndex);
|
|
PRInt32 minColIndex = PR_MIN(startColIndex, endColIndex);
|
|
PRInt32 maxColIndex = PR_MAX(startColIndex, endColIndex);
|
|
|
|
while (cellNode)
|
|
{
|
|
nsCOMPtr<nsIContent> childContent = do_QueryInterface(cellNode);
|
|
result = GetCellIndexes(childContent, curRowIndex, curColIndex);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
#ifdef DEBUG_TABLE_SELECTION
|
|
if (!range)
|
|
printf("SelectBlockOfCells -- range is null\n");
|
|
#endif
|
|
if (range &&
|
|
(curRowIndex < minRowIndex || curRowIndex > maxRowIndex ||
|
|
curColIndex < minColIndex || curColIndex > maxColIndex))
|
|
{
|
|
mDomSelections[index]->RemoveRange(range);
|
|
// Since we've removed the range, decrement pointer to next range
|
|
mSelectedCellIndex--;
|
|
}
|
|
result = GetNextSelectedCellAndRange(getter_AddRefs(cellNode), getter_AddRefs(range));
|
|
if (NS_FAILED(result)) return result;
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIDOMElement> cellElement;
|
|
PRInt32 rowSpan, colSpan, actualRowSpan, actualColSpan;
|
|
PRBool isSelected;
|
|
|
|
// Note that we select block in the direction of user's mouse dragging,
|
|
// which means start cell may be after the end cell in either row or column
|
|
PRInt32 row = startRowIndex;
|
|
while(PR_TRUE)
|
|
{
|
|
PRInt32 col = startColIndex;
|
|
while(PR_TRUE)
|
|
{
|
|
result = tableLayoutObject->GetCellDataAt(row, col, *getter_AddRefs(cellElement),
|
|
curRowIndex, curColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
NS_ASSERTION(actualColSpan, "!actualColSpan is 0!");
|
|
|
|
// Skip cells that are spanned from previous locations or are already selected
|
|
if (!isSelected && cellElement && row == curRowIndex && col == curColIndex)
|
|
{
|
|
result = SelectCellElement(cellElement);
|
|
if (NS_FAILED(result)) return result;
|
|
}
|
|
// Done when we reach end column
|
|
if (col == endColIndex) break;
|
|
|
|
if (startColIndex < endColIndex)
|
|
col ++;
|
|
else
|
|
col--;
|
|
};
|
|
if (row == endRowIndex) break;
|
|
|
|
if (startRowIndex < endRowIndex)
|
|
row++;
|
|
else
|
|
row--;
|
|
};
|
|
return result;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::SelectRowOrColumn(nsIContent *aCellContent, PRUint32 aTarget)
|
|
{
|
|
if (!aCellContent) return NS_ERROR_NULL_POINTER;
|
|
|
|
nsCOMPtr<nsIContent> table;
|
|
nsresult result = GetParentTable(aCellContent, getter_AddRefs(table));
|
|
if (NS_FAILED(result)) return PR_FALSE;
|
|
if (!table) return NS_ERROR_NULL_POINTER;
|
|
|
|
// Get table and cell layout interfaces to access
|
|
// cell data based on cellmap location
|
|
// Frames are not ref counted, so don't use an nsCOMPtr
|
|
nsITableLayout *tableLayout = GetTableLayout(table);
|
|
if (!tableLayout) return NS_ERROR_FAILURE;
|
|
nsITableCellLayout *cellLayout = GetCellLayout(aCellContent);
|
|
if (!cellLayout) return NS_ERROR_FAILURE;
|
|
|
|
// Get location of target cell:
|
|
PRInt32 rowIndex, colIndex, curRowIndex, curColIndex;
|
|
result = cellLayout->GetCellIndexes(rowIndex, colIndex);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
// Be sure we start at proper beginning
|
|
// (This allows us to select row or col given ANY cell!)
|
|
if (aTarget == nsISelectionPrivate::TABLESELECTION_ROW)
|
|
colIndex = 0;
|
|
if (aTarget == nsISelectionPrivate::TABLESELECTION_COLUMN)
|
|
rowIndex = 0;
|
|
|
|
nsCOMPtr<nsIDOMElement> cellElement;
|
|
nsCOMPtr<nsIDOMElement> firstCell;
|
|
nsCOMPtr<nsIDOMElement> lastCell;
|
|
PRInt32 rowSpan, colSpan, actualRowSpan, actualColSpan;
|
|
PRBool isSelected;
|
|
|
|
do {
|
|
// Loop through all cells in column or row to find first and last
|
|
result = tableLayout->GetCellDataAt(rowIndex, colIndex, *getter_AddRefs(cellElement),
|
|
curRowIndex, curColIndex, rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan, isSelected);
|
|
if (NS_FAILED(result)) return result;
|
|
if (cellElement)
|
|
{
|
|
NS_ASSERTION(actualRowSpan > 0 && actualColSpan> 0, "SelectRowOrColumn: Bad rowspan or colspan\n");
|
|
if (!firstCell)
|
|
firstCell = cellElement;
|
|
|
|
lastCell = cellElement;
|
|
|
|
// Move to next cell in cellmap, skipping spanned locations
|
|
if (aTarget == nsISelectionPrivate::TABLESELECTION_ROW)
|
|
colIndex += actualColSpan;
|
|
else
|
|
rowIndex += actualRowSpan;
|
|
}
|
|
}
|
|
while (cellElement);
|
|
|
|
// Use SelectBlockOfCells:
|
|
// This will replace existing selection,
|
|
// but allow unselecting by dragging out of selected region
|
|
if (firstCell && lastCell)
|
|
{
|
|
if (!mStartSelectedCell)
|
|
{
|
|
// We are starting a new block, so select the first cell
|
|
result = SelectCellElement(firstCell);
|
|
if (NS_FAILED(result)) return result;
|
|
mStartSelectedCell = do_QueryInterface(firstCell);
|
|
}
|
|
nsCOMPtr<nsIContent> lastCellContent = do_QueryInterface(lastCell);
|
|
result = SelectBlockOfCells(mStartSelectedCell, lastCellContent);
|
|
|
|
// This gets set to the cell at end of row/col,
|
|
// but we need it to be the cell under cursor
|
|
mEndSelectedCell = aCellContent;
|
|
return result;
|
|
}
|
|
|
|
#if 0
|
|
// This is a more efficient strategy that appends row to current selection,
|
|
// but doesn't allow dragging OFF of an existing selection to unselect!
|
|
do {
|
|
// Loop through all cells in column or row
|
|
result = tableLayout->GetCellDataAt(rowIndex, colIndex,
|
|
getter_AddRefs(cellElement),
|
|
curRowIndex, curColIndex,
|
|
rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan,
|
|
isSelected);
|
|
if (NS_FAILED(result)) return result;
|
|
// We're done when cell is not found
|
|
if (!cellElement) break;
|
|
|
|
|
|
// Check spans else we infinitely loop
|
|
NS_ASSERTION(actualColSpan, "actualColSpan is 0!");
|
|
NS_ASSERTION(actualRowSpan, "actualRowSpan is 0!");
|
|
|
|
// Skip cells that are already selected or span from outside our region
|
|
if (!isSelected && rowIndex == curRowIndex && colIndex == curColIndex)
|
|
{
|
|
result = SelectCellElement(cellElement);
|
|
if (NS_FAILED(result)) return result;
|
|
}
|
|
// Move to next row or column in cellmap, skipping spanned locations
|
|
if (aTarget == nsISelectionPrivate::TABLESELECTION_ROW)
|
|
colIndex += actualColSpan;
|
|
else
|
|
rowIndex += actualRowSpan;
|
|
}
|
|
while (cellElement);
|
|
#endif
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::GetFirstCellNodeInRange(nsIDOMRange *aRange, nsIDOMNode **aCellNode)
|
|
{
|
|
if (!aRange || !aCellNode) return NS_ERROR_NULL_POINTER;
|
|
|
|
*aCellNode = nsnull;
|
|
|
|
nsCOMPtr<nsIDOMNode> startParent;
|
|
nsresult result = aRange->GetStartContainer(getter_AddRefs(startParent));
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (!startParent)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
PRInt32 offset;
|
|
result = aRange->GetStartOffset(&offset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsCOMPtr<nsIContent> parentContent = do_QueryInterface(startParent);
|
|
nsCOMPtr<nsIContent> childContent = parentContent->GetChildAt(offset);
|
|
if (!childContent)
|
|
return NS_ERROR_NULL_POINTER;
|
|
// Don't return node if not a cell
|
|
if (!IsCell(childContent)) return NS_OK;
|
|
|
|
nsCOMPtr<nsIDOMNode> childNode = do_QueryInterface(childContent);
|
|
if (childNode)
|
|
{
|
|
*aCellNode = childNode;
|
|
NS_ADDREF(*aCellNode);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::GetFirstSelectedCellAndRange(nsIDOMNode **aCell, nsIDOMRange **aRange)
|
|
{
|
|
if (!aCell) return NS_ERROR_NULL_POINTER;
|
|
*aCell = nsnull;
|
|
|
|
// aRange is optional
|
|
if (aRange)
|
|
*aRange = nsnull;
|
|
|
|
nsCOMPtr<nsIDOMRange> firstRange;
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
nsresult result = mDomSelections[index]->GetRangeAt(0, getter_AddRefs(firstRange));
|
|
if (NS_FAILED(result)) return result;
|
|
if (!firstRange) return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIDOMNode> cellNode;
|
|
result = GetFirstCellNodeInRange(firstRange, getter_AddRefs(cellNode));
|
|
if (NS_FAILED(result)) return result;
|
|
if (!cellNode) return NS_OK;
|
|
|
|
*aCell = cellNode;
|
|
NS_ADDREF(*aCell);
|
|
if (aRange)
|
|
{
|
|
*aRange = firstRange;
|
|
NS_ADDREF(*aRange);
|
|
}
|
|
|
|
// Setup for next cell
|
|
mSelectedCellIndex = 1;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::GetNextSelectedCellAndRange(nsIDOMNode **aCell, nsIDOMRange **aRange)
|
|
{
|
|
if (!aCell) return NS_ERROR_NULL_POINTER;
|
|
*aCell = nsnull;
|
|
|
|
// aRange is optional
|
|
if (aRange)
|
|
*aRange = nsnull;
|
|
|
|
PRInt32 rangeCount;
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
nsresult result = mDomSelections[index]->GetRangeCount(&rangeCount);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
// Don't even try if index exceeds range count
|
|
if (mSelectedCellIndex >= rangeCount)
|
|
{
|
|
// Should we reset index?
|
|
// Maybe better to force recalling GetFirstSelectedCell()
|
|
//mSelectedCellIndex = 0;
|
|
return NS_OK;
|
|
}
|
|
|
|
// Get first node in next range of selection - test if it's a cell
|
|
nsCOMPtr<nsIDOMRange> range;
|
|
result = mDomSelections[index]->GetRangeAt(mSelectedCellIndex, getter_AddRefs(range));
|
|
if (NS_FAILED(result)) return result;
|
|
if (!range) return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIDOMNode> cellNode;
|
|
result = GetFirstCellNodeInRange(range, getter_AddRefs(cellNode));
|
|
if (NS_FAILED(result)) return result;
|
|
// No cell in selection range
|
|
if (!cellNode) return NS_OK;
|
|
|
|
*aCell = cellNode;
|
|
NS_ADDREF(*aCell);
|
|
if (aRange)
|
|
{
|
|
*aRange = range;
|
|
NS_ADDREF(*aRange);
|
|
}
|
|
|
|
// Setup for next cell
|
|
mSelectedCellIndex++;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::GetCellIndexes(nsIContent *aCell, PRInt32 &aRowIndex, PRInt32 &aColIndex)
|
|
{
|
|
if (!aCell) return NS_ERROR_NULL_POINTER;
|
|
|
|
aColIndex=0; // initialize out params
|
|
aRowIndex=0;
|
|
|
|
nsITableCellLayout *cellLayoutObject = GetCellLayout(aCell);
|
|
if (!cellLayoutObject) return NS_ERROR_FAILURE;
|
|
return cellLayoutObject->GetCellIndexes(aRowIndex, aColIndex);
|
|
}
|
|
|
|
PRBool
|
|
nsSelection::IsInSameTable(nsIContent *aContent1, nsIContent *aContent2, nsIContent **aTable)
|
|
{
|
|
if (!aContent1 || !aContent2) return PR_FALSE;
|
|
|
|
// aTable is optional:
|
|
if(aTable) *aTable = nsnull;
|
|
|
|
nsCOMPtr<nsIContent> tableNode1;
|
|
nsCOMPtr<nsIContent> tableNode2;
|
|
|
|
nsresult result = GetParentTable(aContent1, getter_AddRefs(tableNode1));
|
|
if (NS_FAILED(result)) return PR_FALSE;
|
|
result = GetParentTable(aContent2, getter_AddRefs(tableNode2));
|
|
if (NS_FAILED(result)) return PR_FALSE;
|
|
|
|
// Must be in the same table
|
|
if (tableNode1 && (tableNode1 == tableNode2))
|
|
{
|
|
if (aTable)
|
|
{
|
|
*aTable = tableNode1;
|
|
NS_ADDREF(*aTable);
|
|
}
|
|
return PR_TRUE;;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::GetParentTable(nsIContent *aCell, nsIContent **aTable)
|
|
{
|
|
if (!aCell || !aTable) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
for (nsIContent* parent = aCell->GetParent(); parent;
|
|
parent = parent->GetParent()) {
|
|
if (parent->Tag() == nsHTMLAtoms::table &&
|
|
parent->IsContentOfType(nsIContent::eHTML)) {
|
|
*aTable = parent;
|
|
NS_ADDREF(*aTable);
|
|
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::SelectCellElement(nsIDOMElement *aCellElement)
|
|
{
|
|
nsCOMPtr<nsIContent> cellContent = do_QueryInterface(aCellElement);
|
|
|
|
if (!cellContent) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsIContent *parent = cellContent->GetParent();
|
|
nsCOMPtr<nsIDOMNode> parentNode(do_QueryInterface(parent));
|
|
if (!parentNode) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Get child offset
|
|
PRInt32 offset = parent->IndexOf(cellContent);
|
|
|
|
return CreateAndAddRange(parentNode, offset);
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::getTableCellLocationFromRange(nsIDOMRange *aRange, PRInt32 *aSelectionType, PRInt32 *aRow, PRInt32 *aCol)
|
|
{
|
|
if (!aRange || !aSelectionType || !aRow || !aCol)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
*aSelectionType = nsISelectionPrivate::TABLESELECTION_NONE;
|
|
*aRow = 0;
|
|
*aCol = 0;
|
|
|
|
// Must have access to frame selection to get cell info
|
|
if (!mFrameSelection) return NS_OK;
|
|
|
|
nsresult result = GetTableSelectionType(aRange, aSelectionType);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
// Don't fail if range does not point to a single table cell,
|
|
// let aSelectionType tell user if we don't have a cell
|
|
if (*aSelectionType != nsISelectionPrivate::TABLESELECTION_CELL)
|
|
return NS_OK;
|
|
|
|
// Get the child content (the cell) pointed to by starting node of range
|
|
// We do minimal checking since GetTableSelectionType assures
|
|
// us that this really is a table cell
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
result = aRange->GetStartContainer(getter_AddRefs(startNode));
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsCOMPtr<nsIContent> content(do_QueryInterface(startNode));
|
|
if (!content)
|
|
return NS_ERROR_FAILURE;
|
|
PRInt32 startOffset;
|
|
result = aRange->GetStartOffset(&startOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsIContent *child = content->GetChildAt(startOffset);
|
|
if (!child)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
//Note: This is a non-ref-counted pointer to the frame
|
|
nsITableCellLayout *cellLayout = mFrameSelection->GetCellLayout(child);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (!cellLayout)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
return cellLayout->GetCellIndexes(*aRow, *aCol);
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::addTableCellRange(nsIDOMRange *aRange, PRBool *aDidAddRange)
|
|
{
|
|
if (!aDidAddRange)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
*aDidAddRange = PR_FALSE;
|
|
|
|
if (!mFrameSelection)
|
|
return NS_OK;
|
|
|
|
if (!aRange)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult result;
|
|
|
|
// Get if we are adding a cell selection and the row, col of cell if we are
|
|
PRInt32 newRow, newCol, tableMode;
|
|
result = getTableCellLocationFromRange(aRange, &tableMode, &newRow, &newCol);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
// If not adding a cell range, we are done here
|
|
if (tableMode != nsISelectionPrivate::TABLESELECTION_CELL)
|
|
{
|
|
mFrameSelection->mSelectingTableCellMode = tableMode;
|
|
// Don't fail if range isn't a selected cell, aDidAddRange tells caller if we didn't proceed
|
|
return NS_OK;
|
|
}
|
|
|
|
// Set frame selection mode only if not already set to a table mode
|
|
// so we don't loose the select row and column flags (not detected by getTableCellLocation)
|
|
if (mFrameSelection->mSelectingTableCellMode == TABLESELECTION_NONE)
|
|
mFrameSelection->mSelectingTableCellMode = tableMode;
|
|
|
|
PRInt32 count = mRangeArray.Count();
|
|
|
|
if (count > 0)
|
|
{
|
|
// Adding a cell range to existing list of cell ranges
|
|
PRInt32 index;
|
|
PRInt32 row, col;
|
|
// Insert range at appropriate location
|
|
for (index = 0; index < count; index++)
|
|
{
|
|
nsIDOMRange* range = mRangeArray[index];
|
|
if (!range) return NS_ERROR_FAILURE;
|
|
|
|
PRInt32 selectionMode;
|
|
result = getTableCellLocationFromRange(range, &selectionMode, &row, &col);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
// Don't proceed if range not a table cell
|
|
if (selectionMode != nsISelectionPrivate::TABLESELECTION_CELL)
|
|
return NS_OK;
|
|
|
|
if (row > newRow ||
|
|
(row == newRow && col > newCol))
|
|
{
|
|
// Existing selected cell is after cell to add,
|
|
// so insert at this index
|
|
*aDidAddRange = mRangeArray.InsertObjectAt(aRange, index);
|
|
return (*aDidAddRange) ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
}
|
|
// If here, we are adding a selected cell range
|
|
// to end of range array or it's the first selected range
|
|
*aDidAddRange = mRangeArray.AppendObject(aRange);
|
|
return (*aDidAddRange) ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
//TODO: Figure out TABLESELECTION_COLUMN and TABLESELECTION_ALLCELLS
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetTableSelectionType(nsIDOMRange* aRange, PRInt32* aTableSelectionType)
|
|
{
|
|
if (!aRange || !aTableSelectionType)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
*aTableSelectionType = nsISelectionPrivate::TABLESELECTION_NONE;
|
|
|
|
// Must have access to frame selection to get cell info
|
|
if(!mFrameSelection) return NS_OK;
|
|
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
nsresult result = aRange->GetStartContainer(getter_AddRefs(startNode));
|
|
if (NS_FAILED(result)) return result;
|
|
if (!startNode) return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
result = aRange->GetEndContainer(getter_AddRefs(endNode));
|
|
if (NS_FAILED(result)) return result;
|
|
if (!endNode) return NS_ERROR_FAILURE;
|
|
|
|
// Not a single selected node
|
|
if (startNode != endNode) return NS_OK;
|
|
|
|
nsCOMPtr<nsIContent> content = do_QueryInterface(startNode);
|
|
if (!content) return NS_ERROR_FAILURE;
|
|
|
|
// if we simply cannot have children, return NS_OK as a non-failing,
|
|
// non-completing case for table selection
|
|
if (!content->IsContentOfType(nsIContent::eELEMENT))
|
|
return NS_OK; //got to be a text node, definately not a table row/cell
|
|
|
|
PRInt32 startOffset;
|
|
PRInt32 endOffset;
|
|
result = aRange->GetEndOffset(&endOffset);
|
|
if (NS_FAILED(result)) return result;
|
|
result = aRange->GetStartOffset(&startOffset);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
// Not a single selected node
|
|
if ((endOffset - startOffset) != 1)
|
|
return NS_OK;
|
|
|
|
if (!content->IsContentOfType(nsIContent::eHTML)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIAtom *tag = content->Tag();
|
|
|
|
if (tag == nsHTMLAtoms::tr)
|
|
{
|
|
*aTableSelectionType = nsISelectionPrivate::TABLESELECTION_CELL;
|
|
}
|
|
else //check to see if we are selecting a table or row (column and all cells not done yet)
|
|
{
|
|
nsIContent *child = content->GetChildAt(startOffset);
|
|
if (!child)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
tag = child->Tag();
|
|
|
|
if (tag == nsHTMLAtoms::table)
|
|
*aTableSelectionType = nsISelectionPrivate::TABLESELECTION_TABLE;
|
|
else if (tag == nsHTMLAtoms::tr)
|
|
*aTableSelectionType = nsISelectionPrivate::TABLESELECTION_ROW;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
nsresult
|
|
nsSelection::CreateAndAddRange(nsIDOMNode *aParentNode, PRInt32 aOffset)
|
|
{
|
|
if (!aParentNode) return NS_ERROR_NULL_POINTER;
|
|
nsCOMPtr<nsIDOMRange> range;
|
|
NS_NewRange(getter_AddRefs(range));
|
|
if (!range) return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
// Set range around child at given offset
|
|
nsresult result = range->SetStart(aParentNode, aOffset);
|
|
if (NS_FAILED(result)) return result;
|
|
result = range->SetEnd(aParentNode, aOffset+1);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
return mDomSelections[index]->AddRange(range);
|
|
}
|
|
|
|
// End of Table Selection
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::AdjustOffsetsFromStyle(nsIFrame *aFrame, PRBool *changeSelection,
|
|
nsIContent** outContent, PRInt32* outStartOffset, PRInt32* outEndOffset)
|
|
{
|
|
|
|
*changeSelection = PR_FALSE;
|
|
*outContent = nsnull;
|
|
|
|
nsresult rv;
|
|
nsIFrame* selectAllFrame;
|
|
rv = FrameOrParentHasSpecialSelectionStyle(aFrame, NS_STYLE_USER_SELECT_ALL, &selectAllFrame);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
if (!selectAllFrame)
|
|
return NS_OK;
|
|
|
|
nsIContent* selectAllContent = selectAllFrame->GetContent();
|
|
if (selectAllContent)
|
|
{
|
|
nsCOMPtr<nsIContent> parentContent = selectAllContent->GetParent();
|
|
if (parentContent)
|
|
{
|
|
PRInt32 startOffset = parentContent->IndexOf(selectAllContent);
|
|
|
|
if (startOffset < 0)
|
|
{
|
|
// hrmm, this is probably anonymous content. Let's go up another level
|
|
// do we need to do this if we get the right frameSelection to start with?
|
|
nsCOMPtr<nsIContent> superParent = parentContent->GetParent();
|
|
if (superParent)
|
|
{
|
|
PRInt32 superStartOffset = superParent->IndexOf(parentContent);
|
|
if (superStartOffset < 0)
|
|
return NS_ERROR_FAILURE; // give up
|
|
|
|
parentContent = superParent;
|
|
startOffset = superStartOffset;
|
|
}
|
|
}
|
|
|
|
NS_IF_ADDREF(*outContent = parentContent);
|
|
|
|
*outStartOffset = startOffset;
|
|
*outEndOffset = startOffset + 1;
|
|
|
|
*changeSelection = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::SetHint(HINT aHintRight)
|
|
{
|
|
mHint = aHintRight;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::GetHint(HINT *aHintRight)
|
|
{
|
|
*aHintRight = mHint;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
//END nsIFrameSelection methods
|
|
|
|
|
|
#ifdef XP_MAC
|
|
#pragma mark -
|
|
#endif
|
|
|
|
//BEGIN nsISelection interface implementations
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::DeleteFromDocument()
|
|
{
|
|
nsresult res;
|
|
|
|
// If we're already collapsed, then set ourselves to include the
|
|
// last item BEFORE the current range, rather than the range itself,
|
|
// before we do the delete.
|
|
PRBool isCollapsed;
|
|
PRInt8 index = GetIndexFromSelectionType(nsISelectionController::SELECTION_NORMAL);
|
|
mDomSelections[index]->GetIsCollapsed( &isCollapsed);
|
|
if (isCollapsed)
|
|
{
|
|
// If the offset is positive, then it's easy:
|
|
if (mDomSelections[index]->FetchFocusOffset() > 0)
|
|
{
|
|
mDomSelections[index]->Extend(mDomSelections[index]->FetchFocusNode(), mDomSelections[index]->FetchFocusOffset() - 1);
|
|
}
|
|
else
|
|
{
|
|
// Otherwise it's harder, have to find the previous node
|
|
printf("Sorry, don't know how to delete across frame boundaries yet\n");
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
}
|
|
|
|
// Get an iterator
|
|
nsSelectionIterator iter(mDomSelections[index]);
|
|
res = iter.First();
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
|
|
nsCOMPtr<nsIDOMRange> range;
|
|
while (iter.IsDone())
|
|
{
|
|
res = iter.CurrentItem(NS_STATIC_CAST(nsIDOMRange**, getter_AddRefs(range)));
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
res = range->DeleteContents();
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
iter.Next();
|
|
}
|
|
|
|
// Collapse to the new location.
|
|
// If we deleted one character, then we move back one element.
|
|
// FIXME We don't know how to do this past frame boundaries yet.
|
|
if (isCollapsed)
|
|
mDomSelections[index]->Collapse(mDomSelections[index]->FetchAnchorNode(), mDomSelections[index]->FetchAnchorOffset()-1);
|
|
else if (mDomSelections[index]->FetchAnchorOffset() > 0)
|
|
mDomSelections[index]->Collapse(mDomSelections[index]->FetchAnchorNode(), mDomSelections[index]->FetchAnchorOffset());
|
|
#ifdef DEBUG
|
|
else
|
|
printf("Don't know how to set selection back past frame boundary\n");
|
|
#endif
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::SetDisplaySelection(PRInt16 aToggle)
|
|
{
|
|
mDisplaySelection = aToggle;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::GetDisplaySelection(PRInt16 *aToggle)
|
|
{
|
|
if (!aToggle)
|
|
return NS_ERROR_INVALID_ARG;
|
|
*aToggle = mDisplaySelection;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::SetDelayCaretOverExistingSelection(PRBool aDelay)
|
|
{
|
|
mDelayCaretOverExistingSelection = aDelay;
|
|
|
|
if (! aDelay)
|
|
mDelayedMouseEventValid = PR_FALSE;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::GetDelayCaretOverExistingSelection(PRBool *aDelay)
|
|
{
|
|
if (!aDelay)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
*aDelay = mDelayCaretOverExistingSelection;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::SetDelayedCaretData(nsMouseEvent *aMouseEvent)
|
|
{
|
|
if (aMouseEvent)
|
|
{
|
|
mDelayedMouseEventValid = PR_TRUE;
|
|
mDelayedMouseEvent = *aMouseEvent;
|
|
|
|
// XXX: Hmmm, should we AddRef mDelayedMouseEvent->widget?
|
|
// Doing so might introduce a leak if things in the app
|
|
// are not released in the correct order though, so for now
|
|
// don't do anything.
|
|
}
|
|
else
|
|
mDelayedMouseEventValid = PR_FALSE;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::GetDelayedCaretData(nsMouseEvent **aMouseEvent)
|
|
{
|
|
if (!aMouseEvent)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
if (mDelayedMouseEventValid)
|
|
*aMouseEvent = &mDelayedMouseEvent;
|
|
else
|
|
*aMouseEvent = 0;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// Frame needs to get the limiting content node for parent node searches
|
|
NS_IMETHODIMP
|
|
nsSelection::GetLimiter(nsIContent **aLimiterContent)
|
|
{
|
|
if (!aLimiterContent) return NS_ERROR_NULL_POINTER;
|
|
*aLimiterContent = mLimiter;
|
|
NS_IF_ADDREF(*aLimiterContent);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::SetMouseDoubleDown(PRBool aDoubleDown)
|
|
{
|
|
mMouseDoubleDownState = aDoubleDown;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsSelection::GetMouseDoubleDown(PRBool *aDoubleDown)
|
|
{
|
|
*aDoubleDown = mMouseDoubleDownState;
|
|
return NS_OK;
|
|
}
|
|
|
|
//END nsISelection interface implementations
|
|
|
|
#if 0
|
|
#pragma mark -
|
|
#endif
|
|
|
|
// nsTypedSelection implementation
|
|
|
|
// note: this can return a nil anchor node
|
|
|
|
nsTypedSelection::nsTypedSelection(nsSelection *aList)
|
|
{
|
|
mFrameSelection = aList;
|
|
mFixupState = PR_FALSE;
|
|
mDirection = eDirNext;
|
|
mAutoScrollTimer = nsnull;
|
|
mScrollEventPosted = PR_FALSE;
|
|
mCachedOffsetForFrame = nsnull;
|
|
}
|
|
|
|
|
|
nsTypedSelection::nsTypedSelection()
|
|
{
|
|
mFrameSelection = nsnull;
|
|
mFixupState = PR_FALSE;
|
|
mDirection = eDirNext;
|
|
mAutoScrollTimer = nsnull;
|
|
mScrollEventPosted = PR_FALSE;
|
|
mCachedOffsetForFrame = nsnull;
|
|
}
|
|
|
|
|
|
|
|
nsTypedSelection::~nsTypedSelection()
|
|
{
|
|
setAnchorFocusRange(-1);
|
|
|
|
if (mAutoScrollTimer) {
|
|
mAutoScrollTimer->Stop();
|
|
NS_RELEASE(mAutoScrollTimer);
|
|
}
|
|
|
|
if (mEventQueue && mScrollEventPosted) {
|
|
mEventQueue->RevokeEvents(this);
|
|
mScrollEventPosted = PR_FALSE;
|
|
}
|
|
|
|
delete mCachedOffsetForFrame;
|
|
}
|
|
|
|
|
|
// QueryInterface implementation for nsRange
|
|
NS_INTERFACE_MAP_BEGIN(nsTypedSelection)
|
|
NS_INTERFACE_MAP_ENTRY(nsISelection)
|
|
NS_INTERFACE_MAP_ENTRY(nsISelectionPrivate)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsISelection)
|
|
NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(Selection)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
|
|
NS_IMPL_ADDREF(nsTypedSelection)
|
|
NS_IMPL_RELEASE(nsTypedSelection)
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::SetPresShell(nsIPresShell *aPresShell)
|
|
{
|
|
mPresShellWeak = do_GetWeakReference(aPresShell);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetAnchorNode(nsIDOMNode** aAnchorNode)
|
|
{
|
|
if (!aAnchorNode)
|
|
return NS_ERROR_NULL_POINTER;
|
|
*aAnchorNode = nsnull;
|
|
if(!mAnchorFocusRange)
|
|
return NS_OK;
|
|
|
|
nsresult result;
|
|
if (GetDirection() == eDirNext){
|
|
result = mAnchorFocusRange->GetStartContainer(aAnchorNode);
|
|
}
|
|
else{
|
|
result = mAnchorFocusRange->GetEndContainer(aAnchorNode);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetAnchorOffset(PRInt32* aAnchorOffset)
|
|
{
|
|
if (!aAnchorOffset)
|
|
return NS_ERROR_NULL_POINTER;
|
|
*aAnchorOffset = nsnull;
|
|
if(!mAnchorFocusRange)
|
|
return NS_OK;
|
|
|
|
nsresult result;
|
|
if (GetDirection() == eDirNext){
|
|
result = mAnchorFocusRange->GetStartOffset(aAnchorOffset);
|
|
}
|
|
else{
|
|
result = mAnchorFocusRange->GetEndOffset(aAnchorOffset);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// note: this can return a nil focus node
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetFocusNode(nsIDOMNode** aFocusNode)
|
|
{
|
|
if (!aFocusNode)
|
|
return NS_ERROR_NULL_POINTER;
|
|
*aFocusNode = nsnull;
|
|
if(!mAnchorFocusRange)
|
|
return NS_OK;
|
|
|
|
nsresult result;
|
|
if (GetDirection() == eDirNext){
|
|
result = mAnchorFocusRange->GetEndContainer(aFocusNode);
|
|
}
|
|
else{
|
|
result = mAnchorFocusRange->GetStartContainer(aFocusNode);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP nsTypedSelection::GetFocusOffset(PRInt32* aFocusOffset)
|
|
{
|
|
if (!aFocusOffset)
|
|
return NS_ERROR_NULL_POINTER;
|
|
*aFocusOffset = nsnull;
|
|
if(!mAnchorFocusRange)
|
|
return NS_OK;
|
|
|
|
nsresult result;
|
|
if (GetDirection() == eDirNext){
|
|
result = mAnchorFocusRange->GetEndOffset(aFocusOffset);
|
|
}
|
|
else{
|
|
result = mAnchorFocusRange->GetStartOffset(aFocusOffset);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
void nsTypedSelection::setAnchorFocusRange(PRInt32 indx)
|
|
{
|
|
if (indx >= mRangeArray.Count())
|
|
return;
|
|
if (indx < 0) //release all
|
|
{
|
|
mAnchorFocusRange = nsnull;
|
|
}
|
|
else{
|
|
mAnchorFocusRange = mRangeArray[indx];
|
|
}
|
|
}
|
|
|
|
|
|
|
|
nsIDOMNode*
|
|
nsTypedSelection::FetchAnchorNode()
|
|
{ //where did the selection begin
|
|
nsCOMPtr<nsIDOMNode>returnval;
|
|
GetAnchorNode(getter_AddRefs(returnval));//this queries
|
|
return returnval;
|
|
}//at end it will release, no addreff was called
|
|
|
|
|
|
|
|
PRInt32
|
|
nsTypedSelection::FetchAnchorOffset()
|
|
{
|
|
PRInt32 returnval;
|
|
if (NS_SUCCEEDED(GetAnchorOffset(&returnval)))//this queries
|
|
return returnval;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
nsIDOMNode*
|
|
nsTypedSelection::FetchOriginalAnchorNode() //where did the ORIGINAL selection begin
|
|
{
|
|
nsCOMPtr<nsIDOMNode>returnval;
|
|
PRInt32 unused;
|
|
GetOriginalAnchorPoint(getter_AddRefs(returnval), &unused);//this queries
|
|
return returnval;
|
|
}
|
|
|
|
|
|
|
|
PRInt32
|
|
nsTypedSelection::FetchOriginalAnchorOffset()
|
|
{
|
|
nsCOMPtr<nsIDOMNode>unused;
|
|
PRInt32 returnval;
|
|
if (NS_SUCCEEDED(GetOriginalAnchorPoint(getter_AddRefs(unused), &returnval)))//this queries
|
|
return returnval;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
nsIDOMNode*
|
|
nsTypedSelection::FetchFocusNode()
|
|
{ //where is the carret
|
|
nsCOMPtr<nsIDOMNode>returnval;
|
|
GetFocusNode(getter_AddRefs(returnval));//this queries
|
|
return returnval;
|
|
}//at end it will release, no addreff was called
|
|
|
|
|
|
|
|
PRInt32
|
|
nsTypedSelection::FetchFocusOffset()
|
|
{
|
|
PRInt32 returnval;
|
|
if (NS_SUCCEEDED(GetFocusOffset(&returnval)))//this queries
|
|
return returnval;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
nsIDOMNode*
|
|
nsTypedSelection::FetchStartParent(nsIDOMRange *aRange) //skip all the com stuff and give me the start/end
|
|
{
|
|
if (!aRange)
|
|
return nsnull;
|
|
nsCOMPtr<nsIDOMNode> returnval;
|
|
aRange->GetStartContainer(getter_AddRefs(returnval));
|
|
return returnval;
|
|
}
|
|
|
|
|
|
|
|
PRInt32
|
|
nsTypedSelection::FetchStartOffset(nsIDOMRange *aRange)
|
|
{
|
|
if (!aRange)
|
|
return nsnull;
|
|
PRInt32 returnval;
|
|
if (NS_SUCCEEDED(aRange->GetStartOffset(&returnval)))
|
|
return returnval;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
nsIDOMNode*
|
|
nsTypedSelection::FetchEndParent(nsIDOMRange *aRange) //skip all the com stuff and give me the start/end
|
|
{
|
|
if (!aRange)
|
|
return nsnull;
|
|
nsCOMPtr<nsIDOMNode> returnval;
|
|
aRange->GetEndContainer(getter_AddRefs(returnval));
|
|
return returnval;
|
|
}
|
|
|
|
|
|
|
|
PRInt32
|
|
nsTypedSelection::FetchEndOffset(nsIDOMRange *aRange)
|
|
{
|
|
if (!aRange)
|
|
return nsnull;
|
|
PRInt32 returnval;
|
|
if (NS_SUCCEEDED(aRange->GetEndOffset(&returnval)))
|
|
return returnval;
|
|
return 0;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::AddItem(nsIDOMRange *aItem)
|
|
{
|
|
if (!aItem)
|
|
return NS_ERROR_NULL_POINTER;
|
|
return mRangeArray.AppendObject(aItem) ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
nsTypedSelection::RemoveItem(nsIDOMRange *aItem)
|
|
{
|
|
if (!aItem)
|
|
return NS_ERROR_NULL_POINTER;
|
|
mRangeArray.RemoveObject(aItem);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
nsTypedSelection::Clear(nsPresContext* aPresContext)
|
|
{
|
|
setAnchorFocusRange(-1);
|
|
// Get an iterator
|
|
while (PR_TRUE)
|
|
{
|
|
PRInt32 cnt = mRangeArray.Count();
|
|
if (cnt == 0)
|
|
break;
|
|
nsCOMPtr<nsIDOMRange> range = mRangeArray[0];
|
|
mRangeArray.RemoveObjectAt(0);
|
|
selectFrames(aPresContext, range, 0);
|
|
}
|
|
// Reset direction so for more dependable table selection range handling
|
|
SetDirection(eDirNext);
|
|
return NS_OK;
|
|
}
|
|
|
|
//utility method to get the primary frame of node or use the offset to get frame of child node
|
|
|
|
#if 0
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetPrimaryFrameForRangeEndpoint(nsIDOMNode *aNode, PRInt32 aOffset, PRBool aIsEndNode, nsIFrame **aReturnFrame)
|
|
{
|
|
if (!aNode || !aReturnFrame)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
if (aOffset < 0)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
*aReturnFrame = 0;
|
|
|
|
nsresult result = NS_OK;
|
|
|
|
nsCOMPtr<nsIDOMNode> node = aNode;
|
|
|
|
if (!node)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsCOMPtr<nsIContent> content = do_QueryInterface(node, &result);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (!content)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
if (content->IsContentOfType(nsIContent::eELEMENT))
|
|
{
|
|
if (aIsEndNode)
|
|
aOffset--;
|
|
|
|
if (aOffset >= 0)
|
|
{
|
|
nsIContent *child = content->GetChildAt(aOffset);
|
|
if (!child) //out of bounds?
|
|
return NS_ERROR_FAILURE;
|
|
|
|
content = child; // releases the focusnode
|
|
}
|
|
}
|
|
result = mFrameSelection->GetShell()->GetPrimaryFrameFor(content,aReturnFrame);
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetPrimaryFrameForAnchorNode(nsIFrame **aReturnFrame)
|
|
{
|
|
if (!aReturnFrame)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
PRInt32 frameOffset = 0;
|
|
*aReturnFrame = 0;
|
|
nsCOMPtr<nsIContent> content = do_QueryInterface(FetchAnchorNode());
|
|
if (content && mFrameSelection)
|
|
{
|
|
nsIFrameSelection::HINT hint;
|
|
mFrameSelection->GetHint(&hint);
|
|
return mFrameSelection->GetFrameForNodeOffset(content, FetchAnchorOffset(),hint,aReturnFrame, &frameOffset);
|
|
}
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetPrimaryFrameForFocusNode(nsIFrame **aReturnFrame, PRInt32 *aOffsetUsed)
|
|
{
|
|
if (!aReturnFrame)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
PRInt32 frameOffset = 0;
|
|
*aReturnFrame = 0;
|
|
if (!aOffsetUsed)
|
|
aOffsetUsed = &frameOffset;
|
|
|
|
|
|
nsCOMPtr<nsIContent> content = do_QueryInterface(FetchFocusNode());
|
|
if (content && mFrameSelection)
|
|
{
|
|
nsIFrameSelection::HINT hint;
|
|
mFrameSelection->GetHint(&hint);
|
|
return mFrameSelection->GetFrameForNodeOffset(content, FetchFocusOffset(),hint,aReturnFrame, aOffsetUsed);
|
|
}
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
|
|
//select all content children of aContent
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::selectFrames(nsPresContext* aPresContext,
|
|
nsIContentIterator *aInnerIter,
|
|
nsIContent *aContent,
|
|
nsIDOMRange *aRange,
|
|
nsIPresShell *aPresShell,
|
|
PRBool aFlags)
|
|
{
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
nsresult result;
|
|
if (!aInnerIter)
|
|
return NS_ERROR_NULL_POINTER;
|
|
#ifdef USE_SELECTION_GENERATED_CONTENT_ITERATOR_CODE
|
|
nsCOMPtr<nsIGeneratedContentIterator> genericiter = do_QueryInterface(aInnerIter);
|
|
if (genericiter && aPresShell)
|
|
{
|
|
result = genericiter->Init(aPresShell,aContent);
|
|
}
|
|
else
|
|
#endif // USE_SELECTION_GENERATED_CONTENT_ITERATOR_CODE
|
|
result = aInnerIter->Init(aContent);
|
|
nsIFrame *frame;
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
// First select frame of content passed in
|
|
result = mFrameSelection->GetShell()->GetPrimaryFrameFor(aContent, &frame);
|
|
if (NS_SUCCEEDED(result) && frame)
|
|
{
|
|
//NOTE: eSpreadDown is now IGNORED. Selected state is set only for given frame
|
|
frame->SetSelected(aPresContext, nsnull, aFlags, eSpreadDown);
|
|
#ifndef OLD_TABLE_SELECTION
|
|
PRBool tablesel;
|
|
mFrameSelection->GetTableCellSelection(&tablesel);
|
|
if (tablesel)
|
|
{
|
|
nsITableCellLayout *tcl = nsnull;
|
|
CallQueryInterface(frame, &tcl);
|
|
if (tcl)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
}
|
|
#endif //OLD_TABLE_SELECTION
|
|
}
|
|
// Now iterated through the child frames and set them
|
|
while (!aInnerIter->IsDone())
|
|
{
|
|
nsIContent *innercontent = aInnerIter->GetCurrentNode();
|
|
|
|
result = mFrameSelection->GetShell()->GetPrimaryFrameFor(innercontent, &frame);
|
|
if (NS_SUCCEEDED(result) && frame)
|
|
{
|
|
//NOTE: eSpreadDown is now IGNORED. Selected state is set only
|
|
//for given frame
|
|
|
|
//spread from here to hit all frames in flow
|
|
frame->SetSelected(aPresContext, nsnull,aFlags,eSpreadDown);
|
|
nsRect frameRect = frame->GetRect();
|
|
|
|
//if a rect is 0 height/width then try to notify next
|
|
//available in flow of selection status.
|
|
while (!frameRect.width || !frameRect.height)
|
|
{
|
|
//try to notify next in flow that its content is selected.
|
|
frame = frame->GetNextInFlow();
|
|
if (frame)
|
|
{
|
|
frameRect = frame->GetRect();
|
|
frame->SetSelected(aPresContext, nsnull,aFlags,eSpreadDown);
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
//if the frame is splittable and this frame is 0,0 then set
|
|
//the next in flow frame to be selected also
|
|
}
|
|
|
|
aInnerIter->Next();
|
|
}
|
|
|
|
#if 0
|
|
result = mFrameSelection->GetShell()->GetPrimaryFrameFor(content, &frame);
|
|
if (NS_SUCCEEDED(result) && frame)
|
|
frame->SetSelected(aRange,aFlags,eSpreadDown);//spread from here to hit all frames in flow
|
|
#endif
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
|
|
//the idea of this helper method is to select, deselect "top to bottom" traversing through the frames
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::selectFrames(nsPresContext* aPresContext, nsIDOMRange *aRange, PRBool aFlags)
|
|
{
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
if (!aRange || !aPresContext)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult result;
|
|
nsCOMPtr<nsIContentIterator> iter = do_CreateInstance(
|
|
#ifdef USE_SELECTION_GENERATED_CONTENT_ITERATOR_CODE
|
|
kCGenSubtreeIteratorCID,
|
|
#else
|
|
kCSubtreeIteratorCID,
|
|
#endif // USE_SELECTION_GENERATED_CONTENT_ITERATOR_CODE
|
|
&result);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsCOMPtr<nsIContentIterator> inneriter = do_CreateInstance(
|
|
#ifdef USE_SELECTION_GENERATED_CONTENT_ITERATOR_CODE
|
|
kCGenContentIteratorCID,
|
|
#else
|
|
kCContentIteratorCID,
|
|
#endif // USE_SELECTION_GENERATED_CONTENT_ITERATOR_CODE
|
|
&result);
|
|
|
|
if ((NS_SUCCEEDED(result)) && iter && inneriter)
|
|
{
|
|
nsIPresShell *presShell = aPresContext->GetPresShell();
|
|
#ifdef USE_SELECTION_GENERATED_CONTENT_ITERATOR_CODE
|
|
nsCOMPtr<nsIGeneratedContentIterator> genericiter = do_QueryInterface(iter);
|
|
if (genericiter && presShell)
|
|
result = genericiter->Init(presShell,aRange);
|
|
else
|
|
#endif // USE_SELECTION_GENERATED_CONTENT_ITERATOR_CODE
|
|
result = iter->Init(aRange);
|
|
|
|
// loop through the content iterator for each content node
|
|
// for each text node:
|
|
// get the frame for the content, and from it the style context
|
|
// ask the style context about the property
|
|
nsCOMPtr<nsIContent> content;
|
|
nsIFrame *frame;
|
|
//we must call first one explicitly
|
|
content = do_QueryInterface(FetchStartParent(aRange), &result);
|
|
if (NS_FAILED(result) || !content)
|
|
return result;
|
|
|
|
if (!content->IsContentOfType(nsIContent::eELEMENT))
|
|
{
|
|
result = mFrameSelection->GetShell()->GetPrimaryFrameFor(content, &frame);
|
|
if (NS_SUCCEEDED(result) && frame)
|
|
frame->SetSelected(aPresContext, aRange,aFlags,eSpreadDown);//spread from here to hit all frames in flow
|
|
}
|
|
//end start content
|
|
iter->First();
|
|
|
|
while (!iter->IsDone())
|
|
{
|
|
content = iter->GetCurrentNode();
|
|
|
|
selectFrames(aPresContext, inneriter, content, aRange, presShell,aFlags);
|
|
|
|
iter->Next();
|
|
}
|
|
//we must now do the last one if it is not the same as the first
|
|
if (FetchEndParent(aRange) != FetchStartParent(aRange))
|
|
{
|
|
content = do_QueryInterface(FetchEndParent(aRange), &result);
|
|
if (NS_FAILED(result) || !content)
|
|
return result;
|
|
|
|
if (!content->IsContentOfType(nsIContent::eELEMENT))
|
|
{
|
|
result = mFrameSelection->GetShell()->GetPrimaryFrameFor(content, &frame);
|
|
if (NS_SUCCEEDED(result) && frame)
|
|
frame->SetSelected(aPresContext, aRange,aFlags,eSpreadDown);//spread from here to hit all frames in flow
|
|
}
|
|
}
|
|
//end end parent
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::LookUpSelection(nsIContent *aContent, PRInt32 aContentOffset, PRInt32 aContentLength,
|
|
SelectionDetails **aReturnDetails, SelectionType aType, PRBool aSlowCheck)
|
|
{
|
|
PRInt32 cnt;
|
|
nsresult rv = GetRangeCount(&cnt);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
PRInt32 i;
|
|
|
|
nsCOMPtr<nsIDOMNode> passedInNode;
|
|
passedInNode = do_QueryInterface(aContent);
|
|
if (!passedInNode)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
SelectionDetails *details = nsnull;
|
|
SelectionDetails *newDetails = details;
|
|
|
|
for (i =0; i<cnt; i++){
|
|
nsCOMPtr<nsIDOMRange> range = mRangeArray[i];
|
|
if (range){
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
PRInt32 startOffset;
|
|
PRInt32 endOffset;
|
|
range->GetStartContainer(getter_AddRefs(startNode));
|
|
range->GetStartOffset(&startOffset);
|
|
range->GetEndContainer(getter_AddRefs(endNode));
|
|
range->GetEndOffset(&endOffset);
|
|
if (passedInNode == startNode && passedInNode == endNode){
|
|
if (startOffset < (aContentOffset + aContentLength) &&
|
|
endOffset > aContentOffset){
|
|
if (!details){
|
|
details = new SelectionDetails;
|
|
|
|
newDetails = details;
|
|
}
|
|
else{
|
|
newDetails->mNext = new SelectionDetails;
|
|
newDetails = newDetails->mNext;
|
|
}
|
|
if (!newDetails)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
newDetails->mNext = nsnull;
|
|
newDetails->mStart = PR_MAX(0,startOffset - aContentOffset);
|
|
newDetails->mEnd = PR_MIN(aContentLength, endOffset - aContentOffset);
|
|
newDetails->mType = aType;
|
|
}
|
|
}
|
|
else if (passedInNode == startNode){ //are we at the beginning?
|
|
if (startOffset < (aContentOffset + aContentLength)){
|
|
if (!details){
|
|
details = new SelectionDetails;
|
|
newDetails = details;
|
|
}
|
|
else{
|
|
newDetails->mNext = new SelectionDetails;
|
|
newDetails = newDetails->mNext;
|
|
}
|
|
if (!newDetails)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
newDetails->mNext = nsnull;
|
|
newDetails->mStart = PR_MAX(0,startOffset - aContentOffset);
|
|
newDetails->mEnd = aContentLength;
|
|
newDetails->mType = aType;
|
|
}
|
|
}
|
|
else if (passedInNode == endNode){//are we at the end?
|
|
if (endOffset > aContentOffset){
|
|
if (!details){
|
|
details = new SelectionDetails;
|
|
newDetails = details;
|
|
}
|
|
else{
|
|
newDetails->mNext = new SelectionDetails;
|
|
newDetails = newDetails->mNext;
|
|
}
|
|
if (!newDetails)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
newDetails->mNext = nsnull;
|
|
newDetails->mStart = 0;
|
|
newDetails->mEnd = PR_MIN(aContentLength, endOffset - aContentOffset);
|
|
newDetails->mType = aType;
|
|
}
|
|
}
|
|
else { //then we MUST be completely selected! unless someone needs us to check to make sure with slowcheck
|
|
|
|
if (cnt > 1 || aSlowCheck){ //if more than 1 selection or we need to do
|
|
//slow check see if farther than start or
|
|
//less than end.
|
|
//we only have to look at start offset because anything else would
|
|
//have been in the range
|
|
PRInt32 resultnum = nsRange::ComparePoints(startNode,
|
|
startOffset,
|
|
passedInNode,
|
|
aContentOffset);
|
|
if (resultnum > 0)
|
|
continue;
|
|
resultnum = nsRange::ComparePoints(endNode, endOffset,
|
|
passedInNode, aContentOffset);
|
|
if (resultnum <0)
|
|
continue;
|
|
}
|
|
|
|
if (!details){
|
|
details = new SelectionDetails;
|
|
newDetails = details;
|
|
}
|
|
else{
|
|
newDetails->mNext = new SelectionDetails;
|
|
newDetails = newDetails->mNext;
|
|
}
|
|
if (!newDetails)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
newDetails->mNext = nsnull;
|
|
newDetails->mStart = 0;
|
|
newDetails->mEnd = aContentLength;
|
|
newDetails->mType = aType;
|
|
}
|
|
}
|
|
else
|
|
continue;
|
|
}
|
|
if (*aReturnDetails && newDetails)
|
|
newDetails->mNext = *aReturnDetails;
|
|
if (details)
|
|
*aReturnDetails = details;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::Repaint(nsPresContext* aPresContext)
|
|
{
|
|
PRInt32 arrCount = mRangeArray.Count();
|
|
|
|
if (arrCount < 1)
|
|
return NS_OK;
|
|
|
|
PRInt32 i;
|
|
nsIDOMRange* range;
|
|
|
|
for (i = 0; i < arrCount; i++)
|
|
{
|
|
range = mRangeArray[i];
|
|
|
|
if (!range)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
nsresult rv = selectFrames(aPresContext, range, PR_TRUE);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetCanCacheFrameOffset(PRBool *aCanCacheFrameOffset)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aCanCacheFrameOffset);
|
|
|
|
if (mCachedOffsetForFrame)
|
|
*aCanCacheFrameOffset = mCachedOffsetForFrame->mCanCacheFrameOffset;
|
|
else
|
|
*aCanCacheFrameOffset = PR_FALSE;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::SetCanCacheFrameOffset(PRBool aCanCacheFrameOffset)
|
|
{
|
|
if (!mCachedOffsetForFrame) {
|
|
mCachedOffsetForFrame = new CachedOffsetForFrame;
|
|
}
|
|
|
|
mCachedOffsetForFrame->mCanCacheFrameOffset = aCanCacheFrameOffset;
|
|
|
|
// clean up cached frame when turn off cache
|
|
// fix bug 207936
|
|
if (!aCanCacheFrameOffset) {
|
|
mCachedOffsetForFrame->mLastCaretFrame = nsnull;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetCachedFrameOffset(nsIFrame *aFrame, PRInt32 inOffset, nsPoint& aPoint)
|
|
{
|
|
if (!mCachedOffsetForFrame) {
|
|
mCachedOffsetForFrame = new CachedOffsetForFrame;
|
|
}
|
|
|
|
if (mCachedOffsetForFrame->mCanCacheFrameOffset &&
|
|
mCachedOffsetForFrame->mLastCaretFrame &&
|
|
(aFrame == mCachedOffsetForFrame->mLastCaretFrame) &&
|
|
(inOffset == mCachedOffsetForFrame->mLastContentOffset))
|
|
{
|
|
// get cached frame offset
|
|
aPoint = mCachedOffsetForFrame->mCachedFrameOffset;
|
|
}
|
|
else
|
|
{
|
|
// recalculate frame offset and cache it
|
|
GetPointFromOffset(aFrame, inOffset, &aPoint);
|
|
if (mCachedOffsetForFrame->mCanCacheFrameOffset) {
|
|
mCachedOffsetForFrame->mCachedFrameOffset = aPoint;
|
|
mCachedOffsetForFrame->mLastCaretFrame = aFrame;
|
|
mCachedOffsetForFrame->mLastContentOffset = inOffset;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::StartAutoScrollTimer(nsPresContext *aPresContext, nsIView *aView, nsPoint& aPoint, PRUint32 aDelay)
|
|
{
|
|
nsresult result;
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
|
|
if (!mAutoScrollTimer)
|
|
{
|
|
result = NS_NewAutoScrollTimer(&mAutoScrollTimer);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (!mAutoScrollTimer)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
result = mAutoScrollTimer->Init(mFrameSelection, this);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
}
|
|
|
|
result = mAutoScrollTimer->SetDelay(aDelay);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
return DoAutoScrollView(aPresContext, aView, aPoint, PR_TRUE);
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::StopAutoScrollTimer()
|
|
{
|
|
if (mAutoScrollTimer)
|
|
return mAutoScrollTimer->Stop();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::GetViewAncestorOffset(nsIView *aView, nsIView *aAncestorView, nscoord *aXOffset, nscoord *aYOffset)
|
|
{
|
|
// Note: A NULL aAncestorView pointer means that the caller wants
|
|
// the view's global offset.
|
|
|
|
if (!aView || !aXOffset || !aYOffset)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsPoint offset = aView->GetOffsetTo(aAncestorView);
|
|
|
|
*aXOffset = offset.x;
|
|
*aYOffset = offset.y;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::ScrollPointIntoClipView(nsPresContext *aPresContext, nsIView *aView, nsPoint& aPoint, PRBool *aDidScroll)
|
|
{
|
|
nsresult result;
|
|
|
|
if (!aPresContext || !aView || !aDidScroll)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
*aDidScroll = PR_FALSE;
|
|
|
|
//
|
|
// Get aView's scrollable view.
|
|
//
|
|
|
|
nsIScrollableView *scrollableView =
|
|
nsLayoutUtils::GetNearestScrollingView(aView, nsLayoutUtils::eEither);
|
|
|
|
if (!scrollableView)
|
|
return NS_OK; // Nothing to do!
|
|
|
|
//
|
|
// Get the view that is being scrolled.
|
|
//
|
|
|
|
nsIView *scrolledView = 0;
|
|
|
|
result = scrollableView->GetScrolledView(scrolledView);
|
|
|
|
//
|
|
// Now walk up aView's hierarchy, this time keeping track of
|
|
// the view offsets until you hit the scrolledView.
|
|
//
|
|
|
|
nsPoint viewOffset(0,0);
|
|
|
|
result = GetViewAncestorOffset(aView, scrolledView, &viewOffset.x, &viewOffset.y);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// See if aPoint is outside the clip view's boundaries.
|
|
// If it is, scroll the view till it is inside the visible area!
|
|
//
|
|
|
|
nsRect bounds = scrollableView->View()->GetBounds();
|
|
|
|
result = scrollableView->GetScrollPosition(bounds.x,bounds.y);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// Calculate the amount we would have to scroll in
|
|
// the vertical and horizontal directions to get the point
|
|
// within the clip area.
|
|
//
|
|
|
|
nscoord dx = 0, dy = 0;
|
|
|
|
nsPresContext::ScrollbarStyles ss =
|
|
nsLayoutUtils::ScrollbarStylesOfView(scrollableView);
|
|
|
|
if (ss.mHorizontal != NS_STYLE_OVERFLOW_HIDDEN) {
|
|
nscoord e = aPoint.x + viewOffset.x;
|
|
|
|
nscoord x1 = bounds.x;
|
|
nscoord x2 = bounds.x + bounds.width;
|
|
|
|
if (e < x1)
|
|
dx = e - x1;
|
|
else if (e > x2)
|
|
dx = e - x2;
|
|
}
|
|
|
|
if (ss.mVertical != NS_STYLE_OVERFLOW_HIDDEN) {
|
|
nscoord e = aPoint.y + viewOffset.y;
|
|
|
|
nscoord y1 = bounds.y;
|
|
nscoord y2 = bounds.y + bounds.height;
|
|
|
|
if (e < y1)
|
|
dy = e - y1;
|
|
else if (e > y2)
|
|
dy = e - y2;
|
|
}
|
|
|
|
//
|
|
// Now clip the scroll amounts so that we don't scroll
|
|
// beyond the ends of the document.
|
|
//
|
|
|
|
nscoord scrollX = 0, scrollY = 0;
|
|
nscoord docWidth = 0, docHeight = 0;
|
|
|
|
result = scrollableView->GetScrollPosition(scrollX, scrollY);
|
|
|
|
if (NS_SUCCEEDED(result))
|
|
result = scrollableView->GetContainerSize(&docWidth, &docHeight);
|
|
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
if (dx < 0 && scrollX == 0)
|
|
dx = 0;
|
|
else if (dx > 0)
|
|
{
|
|
nscoord x1 = scrollX + dx + bounds.width;
|
|
|
|
if (x1 > docWidth)
|
|
dx -= x1 - docWidth;
|
|
}
|
|
|
|
|
|
if (dy < 0 && scrollY == 0)
|
|
dy = 0;
|
|
else if (dy > 0)
|
|
{
|
|
nscoord y1 = scrollY + dy + bounds.height;
|
|
|
|
if (y1 > docHeight)
|
|
dy -= y1 - docHeight;
|
|
}
|
|
|
|
//
|
|
// Now scroll the view if neccessary.
|
|
//
|
|
|
|
if (dx != 0 || dy != 0)
|
|
{
|
|
// Make sure latest bits are available before we scroll them.
|
|
aPresContext->GetViewManager()->Composite();
|
|
|
|
// Now scroll the view!
|
|
|
|
result = scrollableView->ScrollTo(scrollX + dx, scrollY + dy, NS_VMREFRESH_NO_SYNC);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsPoint newPos;
|
|
|
|
result = scrollableView->GetScrollPosition(newPos.x, newPos.y);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
*aDidScroll = (bounds.x != newPos.x || bounds.y != newPos.y);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::ScrollPointIntoView(nsPresContext *aPresContext, nsIView *aView, nsPoint& aPoint, PRBool aScrollParentViews, PRBool *aDidScroll)
|
|
{
|
|
if (!aPresContext || !aView || !aDidScroll)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult result;
|
|
|
|
*aDidScroll = PR_FALSE;
|
|
|
|
//
|
|
// Calculate the global offset of the view.
|
|
//
|
|
|
|
nsPoint globalOffset;
|
|
|
|
result = GetViewAncestorOffset(aView, nsnull, &globalOffset.x, &globalOffset.y);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// Convert aPoint into global coordinates so it is easier to map
|
|
// into other views.
|
|
//
|
|
|
|
nsPoint globalPoint = aPoint + globalOffset;
|
|
|
|
//
|
|
// Scroll the point into the visible rect of the closest
|
|
// scrollable view.
|
|
//
|
|
result = ScrollPointIntoClipView(aPresContext, aView, aPoint, aDidScroll);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// Now scroll the parent scrollable views.
|
|
//
|
|
|
|
if (aScrollParentViews)
|
|
{
|
|
//
|
|
// Find aView's parent scrollable view.
|
|
//
|
|
|
|
nsIScrollableView *scrollableView =
|
|
nsLayoutUtils::GetNearestScrollingView(aView, nsLayoutUtils::eEither);
|
|
|
|
if (scrollableView)
|
|
{
|
|
//
|
|
// Convert scrollableView to nsIView.
|
|
//
|
|
|
|
nsIView *scrolledView = 0;
|
|
nsIView *view = scrollableView->View();
|
|
|
|
if (view)
|
|
{
|
|
//
|
|
// Now get the scrollableView's parent, then search for it's
|
|
// closest scrollable view.
|
|
//
|
|
|
|
view = view->GetParent();
|
|
|
|
while (view)
|
|
{
|
|
scrollableView =
|
|
nsLayoutUtils::GetNearestScrollingView(view,
|
|
nsLayoutUtils::eEither);
|
|
|
|
if (!scrollableView)
|
|
break;
|
|
|
|
scrolledView = 0;
|
|
result = scrollableView->GetScrolledView(scrolledView);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// Map the global point into this scrolledView's coordinate space.
|
|
//
|
|
|
|
result = GetViewAncestorOffset(scrolledView, nsnull, &globalOffset.x, &globalOffset.y);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsPoint newPoint = globalPoint - globalOffset;
|
|
|
|
//
|
|
// Scroll the point into the visible rect of the scrolled view.
|
|
//
|
|
|
|
PRBool parentDidScroll = PR_FALSE;
|
|
|
|
result = ScrollPointIntoClipView(aPresContext, scrolledView, newPoint, &parentDidScroll);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
*aDidScroll = *aDidScroll || parentDidScroll;
|
|
|
|
//
|
|
// Now get the parent of this scrollable view so we
|
|
// can scroll the next parent view.
|
|
//
|
|
|
|
view = scrollableView->View()->GetParent();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::DoAutoScrollView(nsPresContext *aPresContext, nsIView *aView, nsPoint& aPoint, PRBool aScrollParentViews)
|
|
{
|
|
if (!aPresContext || !aView)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult result;
|
|
|
|
if (mAutoScrollTimer)
|
|
result = mAutoScrollTimer->Stop();
|
|
|
|
//
|
|
// Calculate the global offset of the view.
|
|
//
|
|
|
|
nsPoint globalOffset;
|
|
|
|
result = GetViewAncestorOffset(aView, nsnull, &globalOffset.x, &globalOffset.y);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// Convert aPoint into global coordinates so we can get back
|
|
// to the same point after all the parent views have scrolled.
|
|
//
|
|
|
|
nsPoint globalPoint = aPoint + globalOffset;
|
|
|
|
//
|
|
// Now scroll aPoint into view.
|
|
//
|
|
|
|
PRBool didScroll = PR_FALSE;
|
|
|
|
result = ScrollPointIntoView(aPresContext, aView, aPoint, aScrollParentViews, &didScroll);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// Start the AutoScroll timer if neccessary.
|
|
//
|
|
|
|
if (didScroll && mAutoScrollTimer)
|
|
{
|
|
//
|
|
// Map the globalPoint back into aView's coordinate system. We
|
|
// have to get the globalOffsets again because aView's
|
|
// window and it's parents may have changed their offsets.
|
|
//
|
|
result = GetViewAncestorOffset(aView, nsnull, &globalOffset.x, &globalOffset.y);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsPoint svPoint = globalPoint - globalOffset;
|
|
|
|
result = mAutoScrollTimer->Start(aPresContext, aView, svPoint);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetEnumerator(nsIEnumerator **aIterator)
|
|
{
|
|
nsresult status = NS_ERROR_OUT_OF_MEMORY;
|
|
nsSelectionIterator *iterator = new nsSelectionIterator(this);
|
|
if ( iterator && NS_FAILED(status = CallQueryInterface(iterator, aIterator)) )
|
|
delete iterator;
|
|
return status;
|
|
}
|
|
|
|
|
|
|
|
/** RemoveAllRanges zeroes the selection
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::RemoveAllRanges()
|
|
{
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
nsCOMPtr<nsPresContext> presContext;
|
|
GetPresContext(getter_AddRefs(presContext));
|
|
|
|
|
|
nsresult result = Clear(presContext);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
// Turn off signal for table selection
|
|
mFrameSelection->ClearTableCellSelection();
|
|
|
|
return mFrameSelection->NotifySelectionListeners(GetType());
|
|
// Also need to notify the frames!
|
|
// PresShell::CharacterDataChanged should do that on DocumentChanged
|
|
}
|
|
|
|
/** AddRange adds the specified range to the selection
|
|
* @param aRange is the range to be added
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::AddRange(nsIDOMRange* aRange)
|
|
{
|
|
if (!aRange) return NS_ERROR_NULL_POINTER;
|
|
|
|
// This inserts a table cell range in proper document order
|
|
// and returns NS_ERROR_FAILURE if range doesn't contain just one table cell
|
|
PRBool didAddRange;
|
|
nsresult result = addTableCellRange(aRange, &didAddRange);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
if (!didAddRange)
|
|
{
|
|
result = AddItem(aRange);
|
|
if (NS_FAILED(result)) return result;
|
|
}
|
|
|
|
PRInt32 count;
|
|
result = GetRangeCount(&count);
|
|
if (NS_FAILED(result)) return result;
|
|
|
|
if (count <= 0)
|
|
{
|
|
NS_ASSERTION(0,"bad count after additem\n");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
setAnchorFocusRange(count -1);
|
|
|
|
nsCOMPtr<nsPresContext> presContext;
|
|
GetPresContext(getter_AddRefs(presContext));
|
|
selectFrames(presContext, aRange, PR_TRUE);
|
|
|
|
//ScrollIntoView(); this should not happen automatically
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
|
|
return mFrameSelection->NotifySelectionListeners(GetType());
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::RemoveRange(nsIDOMRange* aRange)
|
|
{
|
|
if (!aRange)
|
|
return NS_ERROR_INVALID_ARG;
|
|
RemoveItem(aRange);
|
|
|
|
nsCOMPtr<nsPresContext> presContext;
|
|
GetPresContext(getter_AddRefs(presContext));
|
|
selectFrames(presContext, aRange, PR_FALSE);
|
|
if (aRange == mAnchorFocusRange.get())
|
|
{
|
|
PRInt32 cnt = mRangeArray.Count();
|
|
if (cnt > 0)
|
|
{
|
|
setAnchorFocusRange(cnt - 1);//reset anchor to LAST range.
|
|
ScrollIntoView();
|
|
}
|
|
}
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
return mFrameSelection->NotifySelectionListeners(GetType());
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Collapse sets the whole selection to be one point.
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::Collapse(nsIDOMNode* aParentNode, PRInt32 aOffset)
|
|
{
|
|
if (!aParentNode)
|
|
return NS_ERROR_INVALID_ARG;
|
|
mFrameSelection->InvalidateDesiredX();
|
|
if (!IsValidSelectionPoint(mFrameSelection, aParentNode))
|
|
return NS_ERROR_FAILURE;
|
|
nsresult result;
|
|
// Delete all of the current ranges
|
|
if (NS_FAILED(SetOriginalAnchorPoint(aParentNode,aOffset)))
|
|
return NS_ERROR_FAILURE; //???
|
|
nsCOMPtr<nsPresContext> presContext;
|
|
GetPresContext(getter_AddRefs(presContext));
|
|
Clear(presContext);
|
|
|
|
// Turn off signal for table selection
|
|
if (mFrameSelection)
|
|
mFrameSelection->ClearTableCellSelection();
|
|
|
|
nsCOMPtr<nsIDOMRange> range;
|
|
NS_NewRange(getter_AddRefs(range));
|
|
if (! range){
|
|
NS_ASSERTION(PR_FALSE,"Couldn't make a range - nsSelection::Collapse");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
result = range->SetEnd(aParentNode, aOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
result = range->SetStart(aParentNode, aOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
#ifdef DEBUG_SELECTION
|
|
if (aParentNode)
|
|
{
|
|
nsCOMPtr<nsIContent>content;
|
|
content = do_QueryInterface(aParentNode);
|
|
if (!content)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
const char *tagString;
|
|
content->Tag()->GetUTF8String(&tagString);
|
|
printf ("Sel. Collapse to %p %s %d\n", content, tagString, aOffset);
|
|
}
|
|
else {
|
|
printf ("Sel. Collapse set to null parent.\n");
|
|
}
|
|
#endif
|
|
|
|
|
|
result = AddItem(range);
|
|
setAnchorFocusRange(0);
|
|
selectFrames(presContext, range,PR_TRUE);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
return mFrameSelection->NotifySelectionListeners(GetType());
|
|
}
|
|
|
|
/*
|
|
* Sets the whole selection to be one point
|
|
* at the start of the current selection
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::CollapseToStart()
|
|
{
|
|
PRInt32 cnt;
|
|
nsresult rv = GetRangeCount(&cnt);
|
|
if (NS_FAILED(rv) || cnt <= 0)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// Get the first range
|
|
nsIDOMRange* firstRange = mRangeArray[0];
|
|
if (!firstRange)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
rv = firstRange->GetStartContainer(getter_AddRefs(parent));
|
|
if (NS_SUCCEEDED(rv))
|
|
{
|
|
if (parent)
|
|
{
|
|
PRInt32 startOffset;
|
|
firstRange->GetStartOffset(&startOffset);
|
|
rv = Collapse(parent, startOffset);
|
|
} else {
|
|
// not very likely!
|
|
rv = NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
/*
|
|
* Sets the whole selection to be one point
|
|
* at the end of the current selection
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::CollapseToEnd()
|
|
{
|
|
PRInt32 cnt;
|
|
nsresult rv = GetRangeCount(&cnt);
|
|
if (NS_FAILED(rv) || cnt <= 0)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// Get the last range
|
|
nsIDOMRange* lastRange = mRangeArray[cnt-1];
|
|
if (!lastRange)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
rv = lastRange->GetEndContainer(getter_AddRefs(parent));
|
|
if (NS_SUCCEEDED(rv))
|
|
{
|
|
if (parent)
|
|
{
|
|
PRInt32 endOffset;
|
|
lastRange->GetEndOffset(&endOffset);
|
|
rv = Collapse(parent, endOffset);
|
|
} else {
|
|
// not very likely!
|
|
rv = NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
/*
|
|
* IsCollapsed -- is the whole selection just one point, or unset?
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetIsCollapsed(PRBool* aIsCollapsed)
|
|
{
|
|
if (!aIsCollapsed)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
PRInt32 cnt = mRangeArray.Count();;
|
|
if (cnt == 0)
|
|
{
|
|
*aIsCollapsed = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
if (cnt != 1)
|
|
{
|
|
*aIsCollapsed = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
return mRangeArray[0]->GetCollapsed(aIsCollapsed);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetRangeCount(PRInt32* aRangeCount)
|
|
{
|
|
if (!aRangeCount)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
*aRangeCount = mRangeArray.Count();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetRangeAt(PRInt32 aIndex, nsIDOMRange** aReturn)
|
|
{
|
|
if (!aReturn)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
PRInt32 cnt = mRangeArray.Count();
|
|
if (aIndex < 0 || aIndex >= cnt)
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
*aReturn = mRangeArray[aIndex];
|
|
NS_IF_ADDREF(*aReturn);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
#ifdef OLD_SELECTION
|
|
|
|
//may change parameters may not.
|
|
//return NS_ERROR_FAILURE if invalid new selection between anchor and passed in parameters
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::FixupSelectionPoints(nsIDOMRange *aRange , nsDirection *aDir, PRBool *aFixupState)
|
|
{
|
|
if (!aRange || !aFixupState)
|
|
return NS_ERROR_NULL_POINTER;
|
|
*aFixupState = PR_FALSE;
|
|
nsresult res;
|
|
|
|
//startNode is the beginning or "anchor" of the range
|
|
//end Node is the end or "focus of the range
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
PRInt32 startOffset;
|
|
PRInt32 endOffset;
|
|
nsresult result;
|
|
if (*aDir == eDirNext)
|
|
{
|
|
if (NS_FAILED(GetOriginalAnchorPoint(getter_AddRefs(startNode), &startOffset)))
|
|
{
|
|
aRange->GetStartParent(getter_AddRefs(startNode));
|
|
aRange->GetStartOffset(&startOffset);
|
|
}
|
|
aRange->GetEndParent(getter_AddRefs(endNode));
|
|
aRange->GetEndOffset(&endOffset);
|
|
}
|
|
else
|
|
{
|
|
if (NS_FAILED(GetOriginalAnchorPoint(getter_AddRefs(startNode), &startOffset)))
|
|
{
|
|
aRange->GetEndParent(getter_AddRefs(startNode));
|
|
aRange->GetEndOffset(&startOffset);
|
|
}
|
|
aRange->GetStartParent(getter_AddRefs(endNode));
|
|
aRange->GetStartOffset(&endOffset);
|
|
}
|
|
if (!startNode || !endNode)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// if end node is a tbody then all bets are off we cannot select "rows"
|
|
nsIAtom *atom = GetTag(endNode);
|
|
if (atom == nsHTMLAtoms::tbody)
|
|
return NS_ERROR_FAILURE; //cannot select INTO row node ony cells
|
|
|
|
//get common parent
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
nsCOMPtr<nsIDOMRange> subRange;
|
|
NS_NewRange(getter_AddRefs(subRange));
|
|
if (!subRange) return NS_ERROR_OUT_OF_MEMORY
|
|
|
|
result = subRange->SetStart(startNode,startOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
result = subRange->SetEnd(endNode,endOffset);
|
|
if (NS_FAILED(result))
|
|
{
|
|
result = subRange->SetEnd(startNode,startOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
result = subRange->SetStart(endNode,endOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
}
|
|
|
|
res = subRange->GetCommonParent(getter_AddRefs(parent));
|
|
if (NS_FAILED(res) || !parent)
|
|
return res;
|
|
|
|
//look for dest. if you see a cell you are in "cell mode"
|
|
//if you see a table you select "whole" table
|
|
|
|
//src first
|
|
nsCOMPtr<nsIDOMNode> tempNode;
|
|
nsCOMPtr<nsIDOMNode> tempNode2;
|
|
PRBool cellMode = PR_FALSE;
|
|
PRBool dirtystart = PR_FALSE;
|
|
PRBool dirtyend = PR_FALSE;
|
|
if (startNode != endNode)
|
|
{
|
|
if (parent != startNode)
|
|
{
|
|
result = startNode->GetParentNode(getter_AddRefs(tempNode));
|
|
if (NS_FAILED(result) || !tempNode)
|
|
return NS_ERROR_FAILURE;
|
|
while (tempNode != parent)
|
|
{
|
|
atom = GetTag(tempNode);
|
|
if (atom == nsHTMLAtoms::table) //select whole table if in cell mode, wait for cell
|
|
{
|
|
result = ParentOffset(tempNode, getter_AddRefs(startNode), &startOffset);
|
|
if (NS_FAILED(result))
|
|
return NS_ERROR_FAILURE;
|
|
if (*aDir == eDirPrevious) //select after
|
|
startOffset++;
|
|
dirtystart = PR_TRUE;
|
|
cellMode = PR_FALSE;
|
|
}
|
|
else if (atom == nsHTMLAtoms::td ||
|
|
atom == nsHTMLAtoms::th) //you are in "cell" mode put selection to end of cell
|
|
{
|
|
cellMode = PR_TRUE;
|
|
result = ParentOffset(tempNode, getter_AddRefs(startNode), &startOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (*aDir == eDirPrevious) //select after
|
|
startOffset++;
|
|
dirtystart = PR_TRUE;
|
|
}
|
|
result = tempNode->GetParentNode(getter_AddRefs(tempNode2));
|
|
if (NS_FAILED(result) || !tempNode2)
|
|
return NS_ERROR_FAILURE;
|
|
tempNode = tempNode2;
|
|
}
|
|
}
|
|
|
|
//now for dest node
|
|
if (parent != endNode)
|
|
{
|
|
result = endNode->GetParentNode(getter_AddRefs(tempNode));
|
|
PRBool found = !cellMode;
|
|
if (NS_FAILED(result) || !tempNode)
|
|
return NS_ERROR_FAILURE;
|
|
while (tempNode != parent)
|
|
{
|
|
atom = GetTag(tempNode);
|
|
if (atom == nsHTMLAtoms::table) //select whole table if in cell mode, wait for cell
|
|
{
|
|
if (!cellMode)
|
|
{
|
|
result = ParentOffset(tempNode, getter_AddRefs(endNode), &endOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (*aDir == eDirNext) //select after
|
|
endOffset++;
|
|
dirtyend = PR_TRUE;
|
|
}
|
|
else
|
|
found = PR_FALSE; //didnt find the right cell yet
|
|
}
|
|
else if (atom == nsHTMLAtoms::td ||
|
|
atom == nsHTMLAtoms::th) //you are in "cell" mode put selection to end of cell
|
|
{
|
|
result = ParentOffset(tempNode, getter_AddRefs(endNode), &endOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
if (*aDir == eDirNext) //select after
|
|
endOffset++;
|
|
found = PR_TRUE;
|
|
dirtyend = PR_TRUE;
|
|
}
|
|
result = tempNode->GetParentNode(getter_AddRefs(tempNode2));
|
|
if (NS_FAILED(result) || !tempNode2)
|
|
return NS_ERROR_FAILURE;
|
|
tempNode = tempNode2;
|
|
}
|
|
if (!found)
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
if (*aDir == eDirNext)
|
|
{
|
|
if (FetchAnchorNode() == startNode.get() && FetchFocusNode() == endNode.get() &&
|
|
FetchAnchorOffset() == startOffset && FetchFocusOffset() == endOffset)
|
|
{
|
|
*aFixupState = PR_FALSE;
|
|
return NS_ERROR_FAILURE;//nothing to do
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (FetchAnchorNode() == endNode.get() && FetchFocusNode() == startNode.get() &&
|
|
FetchAnchorOffset() == endOffset && FetchFocusOffset() == startOffset)
|
|
{
|
|
*aFixupState = PR_FALSE;
|
|
return NS_ERROR_FAILURE;//nothing to do
|
|
}
|
|
}
|
|
if (mFixupState && !dirtyend && !dirtystart)//no mor fixup! all bets off
|
|
{
|
|
dirtystart = PR_TRUE;//force a reset of anchor positions
|
|
dirtystart = PR_TRUE;
|
|
*aFixupState = PR_TRUE;//redraw all selection here
|
|
mFixupState = PR_FALSE;//no more fixup for next time
|
|
}
|
|
else
|
|
if ((dirtystart || dirtyend) && *aDir != mDirection) //fixup took place but new direction all bets are off
|
|
{
|
|
*aFixupState = PR_TRUE;
|
|
//mFixupState = PR_FALSE;
|
|
}
|
|
else
|
|
if (dirtystart && (FetchAnchorNode() != startNode.get() || FetchAnchorOffset() != startOffset))
|
|
{
|
|
*aFixupState = PR_TRUE;
|
|
mFixupState = PR_TRUE;
|
|
}
|
|
else
|
|
if (dirtyend && (FetchFocusNode() != endNode.get() || FetchFocusOffset() != endOffset))
|
|
{
|
|
*aFixupState = PR_TRUE;
|
|
mFixupState = PR_TRUE;
|
|
}
|
|
else
|
|
{
|
|
mFixupState = dirtystart || dirtyend;
|
|
*aFixupState = PR_FALSE;
|
|
}
|
|
if (dirtystart || dirtyend){
|
|
if (*aDir == eDirNext)
|
|
{
|
|
if (NS_FAILED(aRange->SetStart(startNode,startOffset)) || NS_FAILED(aRange->SetEnd(endNode, endOffset)))
|
|
{
|
|
*aDir = eDirPrevious;
|
|
aRange->SetStart(endNode, endOffset);
|
|
aRange->SetEnd(startNode, startOffset);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (NS_FAILED(aRange->SetStart(endNode,endOffset)) || NS_FAILED(aRange->SetEnd(startNode, startOffset)))
|
|
{
|
|
*aDir = eDirNext;
|
|
aRange->SetStart(startNode, startOffset);
|
|
aRange->SetEnd(endNode, endOffset);
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
#endif //OLD_SELECTION
|
|
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::SetOriginalAnchorPoint(nsIDOMNode *aNode, PRInt32 aOffset)
|
|
{
|
|
if (!aNode){
|
|
mOriginalAnchorRange = 0;
|
|
return NS_OK;
|
|
}
|
|
nsCOMPtr<nsIDOMRange> newRange;
|
|
nsresult result;
|
|
NS_NewRange(getter_AddRefs(newRange));
|
|
if (!newRange) return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
result = newRange->SetStart(aNode,aOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
result = newRange->SetEnd(aNode,aOffset);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
mOriginalAnchorRange = newRange;
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::GetOriginalAnchorPoint(nsIDOMNode **aNode, PRInt32 *aOffset)
|
|
{
|
|
if (!aNode || !aOffset || !mOriginalAnchorRange)
|
|
return NS_ERROR_NULL_POINTER;
|
|
nsresult result;
|
|
result = mOriginalAnchorRange->GetStartContainer(aNode);
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
result = mOriginalAnchorRange->GetStartOffset(aOffset);
|
|
return result;
|
|
}
|
|
|
|
|
|
/*
|
|
utility function
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::CopyRangeToAnchorFocus(nsIDOMRange *aRange)
|
|
{
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
PRInt32 startOffset;
|
|
PRInt32 endOffset;
|
|
aRange->GetStartContainer(getter_AddRefs(startNode));
|
|
aRange->GetEndContainer(getter_AddRefs(endNode));
|
|
aRange->GetStartOffset(&startOffset);
|
|
aRange->GetEndOffset(&endOffset);
|
|
if (NS_FAILED(mAnchorFocusRange->SetStart(startNode,startOffset)))
|
|
{
|
|
if (NS_FAILED(mAnchorFocusRange->SetEnd(endNode,endOffset)))
|
|
return NS_ERROR_FAILURE;//???
|
|
if (NS_FAILED(mAnchorFocusRange->SetStart(startNode,startOffset)))
|
|
return NS_ERROR_FAILURE;//???
|
|
}
|
|
else if (NS_FAILED(mAnchorFocusRange->SetEnd(endNode,endOffset)))
|
|
return NS_ERROR_FAILURE;//???
|
|
return NS_OK;
|
|
}
|
|
|
|
/*
|
|
Notes which might come in handy for extend:
|
|
|
|
We can tell the direction of the selection by asking for the anchors selection
|
|
if the begin is less than the end then we know the selection is to the "right".
|
|
else it is a backwards selection.
|
|
a = anchor
|
|
1 = old cursor
|
|
2 = new cursor
|
|
|
|
if (a <= 1 && 1 <=2) a,1,2 or (a1,2)
|
|
if (a < 2 && 1 > 2) a,2,1
|
|
if (1 < a && a <2) 1,a,2
|
|
if (a > 2 && 2 >1) 1,2,a
|
|
if (2 < a && a <1) 2,a,1
|
|
if (a > 1 && 1 >2) 2,1,a
|
|
then execute
|
|
a 1 2 select from 1 to 2
|
|
a 2 1 deselect from 2 to 1
|
|
1 a 2 deselect from 1 to a select from a to 2
|
|
1 2 a deselect from 1 to 2
|
|
2 1 a = continue selection from 2 to 1
|
|
*/
|
|
|
|
|
|
/*
|
|
* Extend extends the selection away from the anchor.
|
|
* We don't need to know the direction, because we always change the focus.
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::Extend(nsIDOMNode* aParentNode, PRInt32 aOffset)
|
|
{
|
|
if (!aParentNode)
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
// First, find the range containing the old focus point:
|
|
if (!mAnchorFocusRange)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
nsresult res;
|
|
if (!IsValidSelectionPoint(mFrameSelection, aParentNode))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
//mFrameSelection->InvalidateDesiredX();
|
|
nsCOMPtr<nsIDOMRange> difRange;
|
|
NS_NewRange(getter_AddRefs(difRange));
|
|
nsCOMPtr<nsIDOMRange> range;
|
|
|
|
if (FetchFocusNode() == aParentNode && FetchFocusOffset() == aOffset)
|
|
return NS_ERROR_FAILURE;//same node nothing to do!
|
|
|
|
res = mAnchorFocusRange->CloneRange(getter_AddRefs(range));
|
|
//range = mAnchorFocusRange;
|
|
|
|
nsCOMPtr<nsIDOMNode> startNode;
|
|
nsCOMPtr<nsIDOMNode> endNode;
|
|
PRInt32 startOffset;
|
|
PRInt32 endOffset;
|
|
|
|
range->GetStartContainer(getter_AddRefs(startNode));
|
|
range->GetEndContainer(getter_AddRefs(endNode));
|
|
range->GetStartOffset(&startOffset);
|
|
range->GetEndOffset(&endOffset);
|
|
|
|
|
|
nsDirection dir = GetDirection();
|
|
PRBool fixupState = PR_FALSE; //if there was a previous fixup the optimal drawing erasing will NOT work
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
|
|
NS_NewRange(getter_AddRefs(difRange));
|
|
//compare anchor to old cursor.
|
|
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
PRInt32 result1 = nsRange::ComparePoints(FetchAnchorNode(),
|
|
FetchAnchorOffset(),
|
|
FetchFocusNode(),
|
|
FetchFocusOffset());
|
|
//compare old cursor to new cursor
|
|
PRInt32 result2 = nsRange::ComparePoints(FetchFocusNode(),
|
|
FetchFocusOffset(),
|
|
aParentNode, aOffset);
|
|
//compare anchor to new cursor
|
|
PRInt32 result3 = nsRange::ComparePoints(FetchAnchorNode(),
|
|
FetchAnchorOffset(),
|
|
aParentNode, aOffset);
|
|
|
|
if (result2 == 0) //not selecting anywhere
|
|
return NS_OK;
|
|
|
|
nsCOMPtr<nsPresContext> presContext;
|
|
GetPresContext(getter_AddRefs(presContext));
|
|
if ((result1 == 0 && result3 < 0) || (result1 <= 0 && result2 < 0)){//a1,2 a,1,2
|
|
//select from 1 to 2 unless they are collapsed
|
|
res = range->SetEnd(aParentNode,aOffset);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
dir = eDirNext;
|
|
res = difRange->SetEnd(FetchEndParent(range), FetchEndOffset(range));
|
|
res |= difRange->SetStart(FetchFocusNode(), FetchFocusOffset());
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
#ifdef OLD_SELECTION
|
|
res = FixupSelectionPoints(range, &dir, &fixupState);
|
|
#endif
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
if (fixupState)
|
|
{
|
|
#ifdef OLD_SELECTION
|
|
selectFrames(mAnchorFocusRange, PR_FALSE);
|
|
selectFrames(range, PR_TRUE);
|
|
#endif
|
|
}
|
|
else{
|
|
selectFrames(presContext, difRange , PR_TRUE);
|
|
}
|
|
res = CopyRangeToAnchorFocus(range);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
}
|
|
else if (result1 == 0 && result3 > 0){//2, a1
|
|
//select from 2 to 1a
|
|
dir = eDirPrevious;
|
|
res = range->SetStart(aParentNode,aOffset);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
#ifdef OLD_SELECTION
|
|
res = FixupSelectionPoints(range, &dir, &fixupState);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
if (fixupState) //unselect previous and select new state has changed to not fixed up
|
|
{
|
|
selectFrames(mAnchorFocusRange, PR_FALSE);
|
|
selectFrames(range, PR_TRUE);
|
|
}
|
|
else
|
|
#endif
|
|
selectFrames(presContext, range, PR_TRUE);
|
|
res = CopyRangeToAnchorFocus(range);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
}
|
|
else if (result3 <= 0 && result2 >= 0) {//a,2,1 or a2,1 or a,21 or a21
|
|
//deselect from 2 to 1
|
|
res = difRange->SetEnd(FetchFocusNode(), FetchFocusOffset());
|
|
res |= difRange->SetStart(aParentNode, aOffset);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
|
|
res = range->SetEnd(aParentNode,aOffset);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
#ifdef OLD_SELECTION
|
|
dir = eDirNext;
|
|
res = FixupSelectionPoints(range, &dir, &fixupState);
|
|
#endif
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
if (fixupState) //unselect previous and select new state has changed to not fixed up
|
|
{
|
|
#ifdef OLD_SELECTION
|
|
selectFrames(mAnchorFocusRange, PR_FALSE);
|
|
selectFrames(range, PR_TRUE);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
res = CopyRangeToAnchorFocus(range);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
RemoveItem(mAnchorFocusRange);
|
|
selectFrames(presContext, difRange, PR_FALSE);//deselect now if fixup succeeded
|
|
AddItem(mAnchorFocusRange);
|
|
difRange->SetEnd(FetchEndParent(range),FetchEndOffset(range));
|
|
selectFrames(presContext, difRange, PR_TRUE);//must reselect last node maybe more if fixup did something
|
|
}
|
|
}
|
|
else if (result1 >= 0 && result3 <= 0) {//1,a,2 or 1a,2 or 1,a2 or 1a2
|
|
if (GetDirection() == eDirPrevious){
|
|
res = range->SetStart(endNode,endOffset);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
}
|
|
dir = eDirNext;
|
|
res = range->SetEnd(aParentNode,aOffset);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
#ifdef OLD_SELECTION
|
|
res = FixupSelectionPoints(range, &dir, &fixupState);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
|
|
if (fixupState) //unselect previous and select new state has changed to not fixed up
|
|
{
|
|
selectFrames(mAnchorFocusRange, PR_FALSE);
|
|
selectFrames(range, PR_TRUE);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
if (FetchFocusNode() != FetchAnchorNode() || FetchFocusOffset() != FetchAnchorOffset() ){//if collapsed diff dont do anything
|
|
res = difRange->SetStart(FetchFocusNode(), FetchFocusOffset());
|
|
res |= difRange->SetEnd(FetchAnchorNode(), FetchAnchorOffset());
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
res = CopyRangeToAnchorFocus(range);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
//deselect from 1 to a
|
|
RemoveItem(mAnchorFocusRange);
|
|
selectFrames(presContext, difRange , PR_FALSE);
|
|
AddItem(mAnchorFocusRange);
|
|
}
|
|
else
|
|
{
|
|
res = CopyRangeToAnchorFocus(range);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
}
|
|
//select from a to 2
|
|
selectFrames(presContext, range , PR_TRUE);
|
|
}
|
|
}
|
|
else if (result2 <= 0 && result3 >= 0) {//1,2,a or 12,a or 1,2a or 12a
|
|
//deselect from 1 to 2
|
|
res = difRange->SetEnd(aParentNode, aOffset);
|
|
res |= difRange->SetStart(FetchFocusNode(), FetchFocusOffset());
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
dir = eDirPrevious;
|
|
res = range->SetStart(aParentNode,aOffset);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
|
|
#ifdef OLD_SELECTION
|
|
res = FixupSelectionPoints(range, &dir, &fixupState);
|
|
#endif
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
if (fixupState) //unselect previous and select new state has changed to not fixed up
|
|
{
|
|
#ifdef OLD_SELECTION
|
|
selectFrames(mAnchorFocusRange, PR_FALSE);
|
|
selectFrames(range, PR_TRUE);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
res = CopyRangeToAnchorFocus(range);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
RemoveItem(mAnchorFocusRange);
|
|
selectFrames(presContext, difRange , PR_FALSE);
|
|
AddItem(mAnchorFocusRange);
|
|
difRange->SetStart(FetchStartParent(range),FetchStartOffset(range));
|
|
selectFrames(presContext, difRange, PR_TRUE);//must reselect last node
|
|
}
|
|
}
|
|
else if (result3 >= 0 && result1 <= 0) {//2,a,1 or 2a,1 or 2,a1 or 2a1
|
|
if (GetDirection() == eDirNext){
|
|
range->SetEnd(startNode,startOffset);
|
|
}
|
|
dir = eDirPrevious;
|
|
res = range->SetStart(aParentNode,aOffset);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
#ifdef OLD_SELECTION
|
|
res = FixupSelectionPoints(range, &dir, &fixupState);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
if (fixupState) //unselect previous and select new state has changed to not fixed up
|
|
{
|
|
selectFrames(mAnchorFocusRange, PR_FALSE);
|
|
selectFrames(range, PR_TRUE);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
//deselect from a to 1
|
|
if (FetchFocusNode() != FetchAnchorNode() || FetchFocusOffset() != FetchAnchorOffset() ){//if collapsed diff dont do anything
|
|
res = difRange->SetStart(FetchAnchorNode(), FetchAnchorOffset());
|
|
res |= difRange->SetEnd(FetchFocusNode(), FetchFocusOffset());
|
|
res = CopyRangeToAnchorFocus(range);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
RemoveItem(mAnchorFocusRange);
|
|
selectFrames(presContext, difRange, 0);
|
|
AddItem(mAnchorFocusRange);
|
|
}
|
|
else
|
|
{
|
|
res = CopyRangeToAnchorFocus(range);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
}
|
|
//select from 2 to a
|
|
selectFrames(presContext, range , PR_TRUE);
|
|
}
|
|
}
|
|
else if (result2 >= 0 && result1 >= 0) {//2,1,a or 21,a or 2,1a or 21a
|
|
//select from 2 to 1
|
|
res = range->SetStart(aParentNode,aOffset);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
dir = eDirPrevious;
|
|
res = difRange->SetEnd(FetchFocusNode(), FetchFocusOffset());
|
|
res |= difRange->SetStart(FetchStartParent(range), FetchStartOffset(range));
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
|
|
#ifdef OLD_SELECTION
|
|
res = FixupSelectionPoints(range, &dir, &fixupState);
|
|
#endif
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
if (fixupState) //unselect previous and select new state has changed to not fixed up
|
|
{
|
|
#ifdef OLD_SELECTION
|
|
selectFrames(mAnchorFocusRange, PR_FALSE);
|
|
selectFrames(range, PR_TRUE);
|
|
#endif
|
|
}
|
|
else {
|
|
selectFrames(presContext, difRange, PR_TRUE);
|
|
}
|
|
res = CopyRangeToAnchorFocus(range);
|
|
if (NS_FAILED(res))
|
|
return res;
|
|
}
|
|
|
|
DEBUG_OUT_RANGE(range);
|
|
#if 0
|
|
if (eDirNext == mDirection)
|
|
printf(" direction = 1 LEFT TO RIGHT\n");
|
|
else
|
|
printf(" direction = 0 RIGHT TO LEFT\n");
|
|
#endif
|
|
SetDirection(dir);
|
|
#ifdef DEBUG_SELECTION
|
|
if (aParentNode)
|
|
{
|
|
nsCOMPtr<nsIContent>content;
|
|
content = do_QueryInterface(aParentNode);
|
|
|
|
const char *tagString;
|
|
content->Tag()->GetUTF8String(&tagString);
|
|
printf ("Sel. Extend to %p %s %d\n", content, tagString, aOffset);
|
|
}
|
|
else {
|
|
printf ("Sel. Extend set to null parent.\n");
|
|
}
|
|
#endif
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
return mFrameSelection->NotifySelectionListeners(GetType());
|
|
}
|
|
|
|
static nsresult
|
|
GetChildOffset(nsIDOMNode *aChild, nsIDOMNode *aParent, PRInt32 &aOffset)
|
|
{
|
|
NS_ASSERTION((aChild && aParent), "bad args");
|
|
nsCOMPtr<nsIContent> content = do_QueryInterface(aParent);
|
|
nsCOMPtr<nsIContent> cChild = do_QueryInterface(aChild);
|
|
|
|
if (!cChild || !content)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
aOffset = content->IndexOf(cChild);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::SelectAllChildren(nsIDOMNode* aParentNode)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aParentNode);
|
|
|
|
if (mFrameSelection)
|
|
{
|
|
mFrameSelection->PostReason(nsISelectionListener::SELECTALL_REASON);
|
|
}
|
|
nsresult result = Collapse(aParentNode, 0);
|
|
if (NS_SUCCEEDED(result))
|
|
{
|
|
nsCOMPtr<nsIDOMNode>lastChild;
|
|
result = aParentNode->GetLastChild(getter_AddRefs(lastChild));
|
|
if ((NS_SUCCEEDED(result)) && lastChild)
|
|
{
|
|
PRInt32 numBodyChildren=0;
|
|
GetChildOffset(lastChild, aParentNode, numBodyChildren);
|
|
if (mFrameSelection)
|
|
{
|
|
mFrameSelection->PostReason(nsISelectionListener::SELECTALL_REASON);
|
|
}
|
|
result = Extend(aParentNode, numBodyChildren+1);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::ContainsNode(nsIDOMNode* aNode, PRBool aRecursive, PRBool* aYes)
|
|
{
|
|
if (!aYes)
|
|
return NS_ERROR_NULL_POINTER;
|
|
*aYes = PR_FALSE;
|
|
|
|
// Iterate over the ranges in the selection checking for the content:
|
|
PRInt32 cnt = mRangeArray.Count();
|
|
for (PRInt32 i = 0; i < cnt; ++i)
|
|
{
|
|
nsIDOMRange* range = mRangeArray[i];
|
|
if (!range)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
nsCOMPtr<nsIContent> content (do_QueryInterface(aNode));
|
|
if (content)
|
|
{
|
|
if (nsRange::IsNodeIntersectsRange(content, range))
|
|
{
|
|
// If recursive, then we're done -- IsNodeIntersectsRange does the right thing
|
|
if (aRecursive)
|
|
{
|
|
*aYes = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
// else not recursive -- node itself must be contained,
|
|
// so we need to do more checking
|
|
PRBool nodeStartsBeforeRange, nodeEndsAfterRange;
|
|
if (NS_SUCCEEDED(nsRange::CompareNodeToRange(content, range,
|
|
&nodeStartsBeforeRange,
|
|
&nodeEndsAfterRange)))
|
|
{
|
|
#ifdef DEBUG_ContainsNode
|
|
nsAutoString name, value;
|
|
aNode->GetNodeName(name);
|
|
aNode->GetNodeValue(value);
|
|
printf("%s [%s]: %d, %d\n", NS_LossyConvertUCS2toASCII(name).get(),
|
|
NS_LossyConvertUCS2toASCII(value).get(),
|
|
nodeStartsBeforeRange, nodeEndsAfterRange);
|
|
#endif
|
|
PRUint16 nodeType;
|
|
aNode->GetNodeType(&nodeType);
|
|
if ((!nodeStartsBeforeRange && !nodeEndsAfterRange)
|
|
|| (nodeType == nsIDOMNode::TEXT_NODE))
|
|
{
|
|
*aYes = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTypedSelection::GetPresContext(nsPresContext **aPresContext)
|
|
{
|
|
if (!mFrameSelection)
|
|
return NS_ERROR_FAILURE;//nothing to do
|
|
nsIPresShell *shell = mFrameSelection->GetShell();
|
|
|
|
if (!shell)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
NS_IF_ADDREF(*aPresContext = shell->GetPresContext());
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::GetPresShell(nsIPresShell **aPresShell)
|
|
{
|
|
if (mPresShellWeak)
|
|
{
|
|
nsCOMPtr<nsIPresShell> presShell = do_QueryReferent(mPresShellWeak);
|
|
if (presShell)
|
|
NS_ADDREF(*aPresShell = presShell);
|
|
return NS_OK;
|
|
}
|
|
nsresult rv = NS_OK;
|
|
if (!mFrameSelection)
|
|
return NS_ERROR_FAILURE;//nothing to do
|
|
|
|
nsIPresShell *shell = mFrameSelection->GetShell();
|
|
|
|
mPresShellWeak = do_GetWeakReference(shell); // the presshell owns us, so no addref
|
|
if (mPresShellWeak)
|
|
NS_ADDREF(*aPresShell = shell);
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::GetRootScrollableView(nsIScrollableView **aScrollableView)
|
|
{
|
|
//
|
|
// NOTE: This method returns a NON-AddRef'd pointer
|
|
// to the scrollable view!
|
|
//
|
|
NS_ENSURE_ARG_POINTER(aScrollableView);
|
|
|
|
if (!mFrameSelection)
|
|
return NS_ERROR_FAILURE;//nothing to do
|
|
nsresult rv;
|
|
nsIScrollableView *scrollView;
|
|
rv = mFrameSelection->GetScrollableView(&scrollView);
|
|
if ( NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (!scrollView)
|
|
{
|
|
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
|
|
rv = GetPresShell(getter_AddRefs(presShell));
|
|
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (!presShell)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsIViewManager* viewManager = presShell->GetViewManager();
|
|
|
|
if (!viewManager)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
//
|
|
// nsIViewManager::GetRootScrollableView() does not
|
|
// AddRef the pointer it returns.
|
|
//
|
|
return viewManager->GetRootScrollableView(aScrollableView);
|
|
}
|
|
else //SCROLLVIEW_FROM_FRAME
|
|
{
|
|
*aScrollableView = scrollView;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::GetFrameToScrolledViewOffsets(nsIScrollableView *aScrollableView, nsIFrame *aFrame, nscoord *aX, nscoord *aY)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
if (!mFrameSelection)
|
|
return NS_ERROR_FAILURE;//nothing to do
|
|
|
|
if (!aScrollableView || !aFrame || !aX || !aY) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
*aX = 0;
|
|
*aY = 0;
|
|
|
|
nsIView* scrolledView;
|
|
nsPoint offset;
|
|
nsIView* closestView;
|
|
|
|
// Determine the offset from aFrame to the scrolled view. We do that by
|
|
// getting the offset from its closest view and then walking up
|
|
aScrollableView->GetScrolledView(scrolledView);
|
|
nsIPresShell *shell = mFrameSelection->GetShell();
|
|
|
|
if (!shell)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsPresContext *presContext = shell->GetPresContext();
|
|
aFrame->GetOffsetFromView(presContext, offset, &closestView);
|
|
|
|
// XXX Deal with the case where there is a scrolled element, e.g., a
|
|
// DIV in the middle...
|
|
offset += closestView->GetOffsetTo(scrolledView);
|
|
|
|
*aX = offset.x;
|
|
*aY = offset.y;
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::GetPointFromOffset(nsIFrame *aFrame, PRInt32 aContentOffset, nsPoint *aPoint)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
if (!mFrameSelection)
|
|
return NS_ERROR_FAILURE;//nothing to do
|
|
if (!aFrame || !aPoint)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
aPoint->x = 0;
|
|
aPoint->y = 0;
|
|
|
|
//
|
|
// Retrieve the device context. We need one to create
|
|
// a rendering context.
|
|
//
|
|
|
|
nsIPresShell *shell = mFrameSelection->GetShell();
|
|
if (!shell)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsPresContext *presContext = shell->GetPresContext();
|
|
if (!presContext)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
//
|
|
// Now get the closest view with a widget so we can create
|
|
// a rendering context.
|
|
//
|
|
|
|
nsIWidget* widget = nsnull;
|
|
nsIView *closestView = nsnull;
|
|
nsPoint offset(0, 0);
|
|
|
|
rv = aFrame->GetOffsetFromView(presContext, offset, &closestView);
|
|
|
|
while (!widget && closestView)
|
|
{
|
|
widget = closestView->GetWidget();
|
|
|
|
if (!widget)
|
|
{
|
|
closestView = closestView->GetParent();
|
|
}
|
|
}
|
|
|
|
if (!closestView)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
//
|
|
// Create a rendering context. This context is used by text frames
|
|
// to calculate text widths so it can figure out where the point is
|
|
// in the frame.
|
|
//
|
|
|
|
nsCOMPtr<nsIRenderingContext> rendContext;
|
|
|
|
rv = presContext->DeviceContext()->
|
|
CreateRenderingContext(closestView, *getter_AddRefs(rendContext));
|
|
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (!rendContext)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
//
|
|
// Now get the point and return!
|
|
//
|
|
|
|
rv = aFrame->GetPointFromOffset(presContext, rendContext, aContentOffset, aPoint);
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::GetSelectionRegionRectAndScrollableView(SelectionRegion aRegion, nsRect *aRect, nsIScrollableView **aScrollableView)
|
|
{
|
|
nsresult result = NS_OK;
|
|
if (!mFrameSelection)
|
|
return NS_ERROR_FAILURE;//nothing to do
|
|
|
|
if (!aRect || !aScrollableView)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
// Init aRect:
|
|
|
|
aRect->x = 0;
|
|
aRect->y = 0;
|
|
aRect->width = 0;
|
|
aRect->height = 0;
|
|
|
|
*aScrollableView = 0;
|
|
|
|
nsIDOMNode *node = 0;
|
|
PRInt32 nodeOffset = 0;
|
|
PRBool isEndNode = PR_TRUE;
|
|
nsIFrame *frame = 0;
|
|
|
|
switch (aRegion)
|
|
{
|
|
case nsISelectionController::SELECTION_ANCHOR_REGION:
|
|
node = FetchAnchorNode();
|
|
nodeOffset = FetchAnchorOffset();
|
|
isEndNode = GetDirection() == eDirPrevious;
|
|
break;
|
|
case nsISelectionController::SELECTION_FOCUS_REGION:
|
|
node = FetchFocusNode();
|
|
nodeOffset = FetchFocusOffset();
|
|
isEndNode = GetDirection() == eDirNext;
|
|
break;
|
|
default:
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (!node)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsCOMPtr<nsIContent> content = do_QueryInterface(node);
|
|
PRInt32 frameOffset = 0;
|
|
|
|
if (content)
|
|
{
|
|
nsIFrameSelection::HINT hint;
|
|
mFrameSelection->GetHint(&hint);
|
|
result = mFrameSelection->GetFrameForNodeOffset(content, nodeOffset, hint, &frame, &frameOffset);
|
|
}
|
|
else
|
|
result = NS_ERROR_FAILURE;
|
|
|
|
if(NS_FAILED(result))
|
|
return result;
|
|
|
|
if (!frame)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
//
|
|
// Get the frame's scrollable view.
|
|
//
|
|
|
|
nsCOMPtr<nsPresContext> presContext;
|
|
|
|
result = GetPresContext(getter_AddRefs(presContext));
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (!presContext)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
|
|
nsIFrame *parentWithView = frame->GetAncestorWithView();
|
|
|
|
if (!parentWithView)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsIView* view = parentWithView->GetView();
|
|
|
|
*aScrollableView =
|
|
nsLayoutUtils::GetNearestScrollingView(view, nsLayoutUtils::eEither);
|
|
|
|
if (!*aScrollableView)
|
|
return NS_OK;
|
|
|
|
//
|
|
// Figure out what node type we have, then get the
|
|
// appropriate rect for it's nodeOffset.
|
|
//
|
|
|
|
PRUint16 nodeType = nsIDOMNode::ELEMENT_NODE;
|
|
|
|
result = node->GetNodeType(&nodeType);
|
|
|
|
if (NS_FAILED(result))
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
if (nodeType == nsIDOMNode::TEXT_NODE)
|
|
{
|
|
nsIFrame *childFrame = 0;
|
|
frameOffset = 0;
|
|
|
|
result = frame->GetChildFrameContainingOffset(nodeOffset, mFrameSelection->mHint, &frameOffset, &childFrame);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
if (!childFrame)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
frame = childFrame;
|
|
|
|
//
|
|
// Get the x coordinate of the offset into the text frame.
|
|
// The x coordinate will be relative to the frame's origin,
|
|
// so we'll have to translate it into the root view's coordinate
|
|
// system.
|
|
//
|
|
nsPoint pt;
|
|
result = GetCachedFrameOffset(frame, nodeOffset, pt);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// Get the frame's rect.
|
|
//
|
|
*aRect = frame->GetRect();
|
|
|
|
//
|
|
// Translate the frame's rect into root view coordinates.
|
|
//
|
|
result = GetFrameToScrolledViewOffsets(*aScrollableView, frame, &aRect->x, &aRect->y);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// Now add the offset's x coordinate.
|
|
//
|
|
aRect->x += pt.x;
|
|
|
|
//
|
|
// Adjust the width of the rect to account for any neccessary
|
|
// padding!
|
|
//
|
|
|
|
nsRect clipRect = (*aScrollableView)->View()->GetBounds();
|
|
|
|
result = (*aScrollableView)->GetScrollPosition(clipRect.x, clipRect.y);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// If the point we are interested is outside the clip
|
|
// region, we will scroll it into view with a padding
|
|
// equal to a quarter of the clip's width.
|
|
//
|
|
|
|
PRInt32 pad = clipRect.width >> 2;
|
|
|
|
if (pad <= 0)
|
|
pad = 3; // Arbitrary
|
|
|
|
if (aRect->x >= clipRect.XMost())
|
|
aRect->width = pad;
|
|
else if (aRect->x <= clipRect.x)
|
|
{
|
|
aRect->x -= pad;
|
|
aRect->width = pad;
|
|
}
|
|
else
|
|
aRect->width = 60; // Arbitrary
|
|
|
|
//
|
|
// Clip the x dimensions of aRect so that they are
|
|
// completely within the bounds of the scrolledView.
|
|
// This helps avoid unnecessary scrolling of parent
|
|
// scrolled views.
|
|
//
|
|
// Note that aRect is in the coordinate system
|
|
// of the scrolledView, so there is no need to take
|
|
// into account scrolledView's x and y position.
|
|
// We can just assume that (0,0) corresponds to the
|
|
// upper left corner, and (svRect.width, svRect.height)
|
|
// the lower right corner of the scrolledView.
|
|
//
|
|
|
|
nsIView* scrolledView = 0;
|
|
|
|
result = (*aScrollableView)->GetScrolledView(scrolledView);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
nsRect svRect = scrolledView->GetBounds();
|
|
|
|
if (aRect->x < 0)
|
|
aRect->x = 0;
|
|
else if (aRect->x >= svRect.width)
|
|
aRect->x = svRect.width - 1;
|
|
|
|
if (aRect->XMost() > svRect.width)
|
|
aRect->width = svRect.width - aRect->x;
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// Must be a non-text frame, just scroll the frame
|
|
// into view.
|
|
//
|
|
*aRect = frame->GetRect();
|
|
|
|
result = GetFrameToScrolledViewOffsets(*aScrollableView, frame, &aRect->x, &aRect->y);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::ScrollRectIntoView(nsIScrollableView *aScrollableView,
|
|
nsRect& aRect,
|
|
PRIntn aVPercent,
|
|
PRIntn aHPercent,
|
|
PRBool aScrollParentViews)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
|
|
if (!aScrollableView)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
// Determine the visible rect in the scrolled view's coordinate space.
|
|
// The size of the visible area is the clip view size
|
|
nsRect visibleRect = aScrollableView->View()->GetBounds();
|
|
aScrollableView->GetScrollPosition(visibleRect.x, visibleRect.y);
|
|
|
|
// The actual scroll offsets
|
|
nscoord scrollOffsetX = visibleRect.x;
|
|
nscoord scrollOffsetY = visibleRect.y;
|
|
|
|
nsPresContext::ScrollbarStyles ss =
|
|
nsLayoutUtils::ScrollbarStylesOfView(aScrollableView);
|
|
|
|
// See how aRect should be positioned vertically
|
|
if (ss.mVertical != NS_STYLE_OVERFLOW_HIDDEN) {
|
|
if (NS_PRESSHELL_SCROLL_ANYWHERE == aVPercent) {
|
|
// The caller doesn't care where aRect is positioned vertically,
|
|
// so long as it's fully visible
|
|
if (aRect.y < visibleRect.y) {
|
|
// Scroll up so aRect's top edge is visible
|
|
scrollOffsetY = aRect.y;
|
|
} else if (aRect.YMost() > visibleRect.YMost()) {
|
|
// Scroll down so aRect's bottom edge is visible. Make sure
|
|
// aRect's top edge is still visible
|
|
scrollOffsetY += aRect.YMost() - visibleRect.YMost();
|
|
if (scrollOffsetY > aRect.y) {
|
|
scrollOffsetY = aRect.y;
|
|
}
|
|
}
|
|
} else {
|
|
// Align the aRect edge according to the specified percentage
|
|
nscoord frameAlignY = aRect.y + (aRect.height * aVPercent) / 100;
|
|
scrollOffsetY = frameAlignY - (visibleRect.height * aVPercent) / 100;
|
|
}
|
|
}
|
|
|
|
// See how the aRect should be positioned horizontally
|
|
if (ss.mHorizontal != NS_STYLE_OVERFLOW_HIDDEN) {
|
|
if (NS_PRESSHELL_SCROLL_ANYWHERE == aHPercent) {
|
|
// The caller doesn't care where the aRect is positioned horizontally,
|
|
// so long as it's fully visible
|
|
if (aRect.x < visibleRect.x) {
|
|
// Scroll left so the aRect's left edge is visible
|
|
scrollOffsetX = aRect.x;
|
|
} else if (aRect.XMost() > visibleRect.XMost()) {
|
|
// Scroll right so the aRect's right edge is visible. Make sure the
|
|
// aRect's left edge is still visible
|
|
scrollOffsetX += aRect.XMost() - visibleRect.XMost();
|
|
if (scrollOffsetX > aRect.x) {
|
|
scrollOffsetX = aRect.x;
|
|
}
|
|
}
|
|
|
|
} else {
|
|
// Align the aRect edge according to the specified percentage
|
|
nscoord frameAlignX = aRect.x + (aRect.width * aHPercent) / 100;
|
|
scrollOffsetX = frameAlignX - (visibleRect.width * aHPercent) / 100;
|
|
}
|
|
}
|
|
|
|
aScrollableView->ScrollTo(scrollOffsetX, scrollOffsetY, NS_VMREFRESH_IMMEDIATE);
|
|
|
|
if (aScrollParentViews)
|
|
{
|
|
//
|
|
// Get aScrollableView's scrolled view.
|
|
//
|
|
|
|
nsIView *scrolledView = 0;
|
|
|
|
rv = aScrollableView->GetScrolledView(scrolledView);
|
|
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (!scrolledView)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
//
|
|
// Check if aScrollableRect has a parent scrollable view!
|
|
//
|
|
|
|
nsIView *view = aScrollableView->View()->GetParent();
|
|
|
|
if (view)
|
|
{
|
|
nsIScrollableView *parentSV =
|
|
nsLayoutUtils::GetNearestScrollingView(view, nsLayoutUtils::eEither);
|
|
|
|
if (parentSV)
|
|
{
|
|
//
|
|
// We have a parent scrollable view, so now map aRect
|
|
// into it's scrolled view's coordinate space.
|
|
//
|
|
|
|
nsRect newRect;
|
|
|
|
rv = parentSV->GetScrolledView(view);
|
|
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (!view)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
rv = GetViewAncestorOffset(scrolledView, view, &newRect.x, &newRect.y);
|
|
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
newRect.x += aRect.x;
|
|
newRect.y += aRect.y;
|
|
newRect.width = aRect.width;
|
|
newRect.height = aRect.height;
|
|
|
|
//
|
|
// Now scroll the rect into the parent's view.
|
|
//
|
|
|
|
rv = ScrollRectIntoView(parentSV, newRect, aVPercent, aHPercent, aScrollParentViews);
|
|
}
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
static void PR_CALLBACK HandlePLEvent(nsScrollSelectionIntoViewEvent* aEvent);
|
|
static void PR_CALLBACK DestroyPLEvent(nsScrollSelectionIntoViewEvent* aEvent);
|
|
|
|
struct nsScrollSelectionIntoViewEvent : public PLEvent {
|
|
nsScrollSelectionIntoViewEvent(nsTypedSelection *aTypedSelection, SelectionRegion aRegion) {
|
|
if (!aTypedSelection)
|
|
return;
|
|
|
|
mTypedSelection = aTypedSelection;
|
|
mRegion = aRegion;
|
|
|
|
PL_InitEvent(this, aTypedSelection,
|
|
(PLHandleEventProc) ::HandlePLEvent,
|
|
(PLDestroyEventProc) ::DestroyPLEvent);
|
|
}
|
|
|
|
~nsScrollSelectionIntoViewEvent() {}
|
|
|
|
void HandleEvent() {
|
|
mTypedSelection->mScrollEventPosted = PR_FALSE;
|
|
|
|
if (!mTypedSelection)
|
|
return;
|
|
|
|
mTypedSelection->ScrollIntoView(mRegion, PR_TRUE);
|
|
}
|
|
|
|
nsTypedSelection *mTypedSelection;
|
|
SelectionRegion mRegion;
|
|
};
|
|
|
|
static void PR_CALLBACK HandlePLEvent(nsScrollSelectionIntoViewEvent* aEvent)
|
|
{
|
|
NS_ASSERTION(nsnull != aEvent,"Event is null");
|
|
aEvent->HandleEvent();
|
|
}
|
|
|
|
static void PR_CALLBACK DestroyPLEvent(nsScrollSelectionIntoViewEvent* aEvent)
|
|
{
|
|
NS_ASSERTION(nsnull != aEvent,"Event is null");
|
|
delete aEvent;
|
|
}
|
|
|
|
nsresult
|
|
nsTypedSelection::PostScrollSelectionIntoViewEvent(SelectionRegion aRegion)
|
|
{
|
|
static NS_DEFINE_CID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
|
|
|
|
if (!mEventQueue) {
|
|
nsresult rv;
|
|
|
|
// Cache the event queue of the current UI thread
|
|
nsCOMPtr<nsIEventQueueService> eventService = do_GetService(kEventQueueServiceCID, &rv);
|
|
if (NS_SUCCEEDED(rv) && (nsnull != eventService)) { // XXX this implies that the UI is the current thread.
|
|
rv = eventService->GetThreadEventQueue(NS_CURRENT_THREAD, getter_AddRefs(mEventQueue));
|
|
}
|
|
}
|
|
|
|
if (mEventQueue) {
|
|
if (mScrollEventPosted) {
|
|
// We've already posted an event, revoke it and
|
|
// place a new one at the end of the queue to make
|
|
// sure that any new pending reflow events are processed
|
|
// before we scroll. This will insure that we scroll
|
|
// to the correct place on screen.
|
|
|
|
mEventQueue->RevokeEvents(this);
|
|
mScrollEventPosted = PR_FALSE;
|
|
}
|
|
|
|
nsScrollSelectionIntoViewEvent *ev = new nsScrollSelectionIntoViewEvent(this, aRegion);
|
|
if (ev) {
|
|
mEventQueue->PostEvent(ev);
|
|
mScrollEventPosted = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::ScrollIntoView(SelectionRegion aRegion, PRBool aIsSynchronous)
|
|
{
|
|
nsresult result;
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
|
|
if (mFrameSelection->GetBatching())
|
|
return NS_OK;
|
|
|
|
if (!aIsSynchronous)
|
|
return PostScrollSelectionIntoViewEvent(aRegion);
|
|
|
|
//
|
|
// Shut the caret off before scrolling to avoid
|
|
// leaving caret turds on the screen!
|
|
//
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
result = GetPresShell(getter_AddRefs(presShell));
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
nsCOMPtr<nsICaret> caret;
|
|
presShell->GetCaret(getter_AddRefs(caret));
|
|
if (caret)
|
|
{
|
|
StCaretHider caretHider(caret); // stack-based class hides and shows the caret
|
|
|
|
//
|
|
// Scroll the selection region into view.
|
|
//
|
|
|
|
nsRect rect;
|
|
nsIScrollableView *scrollableView = 0;
|
|
|
|
result = GetSelectionRegionRectAndScrollableView(aRegion, &rect, &scrollableView);
|
|
|
|
if (NS_FAILED(result))
|
|
return result;
|
|
|
|
//
|
|
// It's ok if we don't have a scrollable view, just return early.
|
|
//
|
|
if (!scrollableView)
|
|
return NS_OK;
|
|
|
|
result = ScrollRectIntoView(scrollableView, rect, NS_PRESSHELL_SCROLL_ANYWHERE, NS_PRESSHELL_SCROLL_ANYWHERE, PR_TRUE);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::AddSelectionListener(nsISelectionListener* aNewListener)
|
|
{
|
|
if (!aNewListener)
|
|
return NS_ERROR_NULL_POINTER;
|
|
return mSelectionListeners.AppendObject(aNewListener) ? NS_OK : NS_ERROR_FAILURE; // addrefs
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::RemoveSelectionListener(nsISelectionListener* aListenerToRemove)
|
|
{
|
|
if (!aListenerToRemove )
|
|
return NS_ERROR_NULL_POINTER;
|
|
return mSelectionListeners.RemoveObject(aListenerToRemove) ? NS_OK : NS_ERROR_FAILURE; // releases
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTypedSelection::NotifySelectionListeners()
|
|
{
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
|
|
if (mFrameSelection->GetBatching()){
|
|
mFrameSelection->SetDirty();
|
|
return NS_OK;
|
|
}
|
|
PRInt32 cnt = mSelectionListeners.Count();
|
|
|
|
nsCOMPtr<nsIDOMDocument> domdoc;
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
nsresult rv = GetPresShell(getter_AddRefs(shell));
|
|
if (NS_SUCCEEDED(rv) && shell)
|
|
domdoc = do_QueryInterface(shell->GetDocument());
|
|
short reason = mFrameSelection->PopReason();
|
|
for (PRInt32 i = 0; i < cnt; i++)
|
|
{
|
|
nsISelectionListener* thisListener = mSelectionListeners[i];
|
|
if (thisListener)
|
|
thisListener->NotifySelectionChanged(domdoc, this, reason);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::StartBatchChanges()
|
|
{
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
return mFrameSelection->StartBatchChanges();
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::EndBatchChanges()
|
|
{
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
return mFrameSelection->EndBatchChanges();
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::DeleteFromDocument()
|
|
{
|
|
if (!mFrameSelection)
|
|
return NS_OK;//nothing to do
|
|
return mFrameSelection->DeleteFromDocument();
|
|
}
|
|
|
|
/** SelectionLanguageChange modifies the cursor Bidi level after a change in keyboard direction
|
|
* @param aLangRTL is PR_TRUE if the new language is right-to-left or PR_FALSE if the new language is left-to-right
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsTypedSelection::SelectionLanguageChange(PRBool aLangRTL)
|
|
{
|
|
nsresult result;
|
|
nsCOMPtr<nsIDOMNode> focusNode;
|
|
nsCOMPtr<nsIContent> focusContent;
|
|
PRInt32 focusOffset;
|
|
nsIFrame *focusFrame = 0;
|
|
|
|
focusOffset = FetchFocusOffset();
|
|
focusNode = FetchFocusNode();
|
|
result = GetPrimaryFrameForFocusNode(&focusFrame, nsnull);
|
|
if (NS_FAILED(result) || !focusFrame)
|
|
return result?result:NS_ERROR_FAILURE;
|
|
|
|
PRInt32 frameStart, frameEnd;
|
|
focusFrame->GetOffsets(frameStart, frameEnd);
|
|
nsCOMPtr<nsPresContext> context;
|
|
PRUint8 levelBefore, levelAfter;
|
|
result = GetPresContext(getter_AddRefs(context));
|
|
if (NS_FAILED(result) || !context)
|
|
return result?result:NS_ERROR_FAILURE;
|
|
|
|
PRUint8 level = NS_GET_EMBEDDING_LEVEL(focusFrame);
|
|
if ((focusOffset != frameStart) && (focusOffset != frameEnd))
|
|
// the cursor is not at a frame boundary, so the level of both the characters (logically) before and after the cursor
|
|
// is equal to the frame level
|
|
levelBefore = levelAfter = level;
|
|
else {
|
|
// the cursor is at a frame boundary, so use GetPrevNextBidiLevels to find the level of the characters
|
|
// before and after the cursor
|
|
nsIFrame* frameBefore = nsnull;
|
|
nsIFrame* frameAfter = nsnull;
|
|
focusContent = do_QueryInterface(focusNode);
|
|
/*
|
|
nsIFrameSelection::HINT hint;
|
|
|
|
if ((focusOffset == frameStart && level) // beginning of an RTL frame
|
|
|| (focusOffset == frameEnd && !level)) { // end of an LTR frame
|
|
hint = nsIFrameSelection::HINTRIGHT;
|
|
}
|
|
else { // end of an RTL frame or beginning of an LTR frame
|
|
hint = nsIFrameSelection::HINTLEFT;
|
|
}
|
|
mFrameSelection->SetHint(hint);
|
|
*/
|
|
mFrameSelection->GetPrevNextBidiLevels(context, focusContent, focusOffset, &frameBefore, &frameAfter, &levelBefore, &levelAfter);
|
|
}
|
|
|
|
nsIPresShell* shell = context->GetPresShell();
|
|
if (!shell)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
if ((levelBefore & 1) == (levelAfter & 1)) {
|
|
// if cursor is between two characters with the same orientation, changing the keyboard language
|
|
// must toggle the cursor level between the level of the character with the lowest level
|
|
// (if the new language corresponds to the orientation of that character) and this level plus 1
|
|
// (if the new language corresponds to the opposite orientation)
|
|
if ((level != levelBefore) && (level != levelAfter))
|
|
level = PR_MIN(levelBefore, levelAfter);
|
|
if ((level & 1) == aLangRTL)
|
|
shell->SetCaretBidiLevel(level);
|
|
else
|
|
shell->SetCaretBidiLevel(level + 1);
|
|
}
|
|
else {
|
|
// if cursor is between characters with opposite orientations, changing the keyboard language must change
|
|
// the cursor level to that of the adjacent character with the orientation corresponding to the new language.
|
|
if ((levelBefore & 1) == aLangRTL)
|
|
shell->SetCaretBidiLevel(levelBefore);
|
|
else
|
|
shell->SetCaretBidiLevel(levelAfter);
|
|
}
|
|
return NS_OK;
|
|
}
|