Home | History | Annotate | Download | only in dom
      1 /*
      2  * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org)
      3  *           (C) 1999 Antti Koivisto (koivisto (at) kde.org)
      4  *           (C) 2001 Dirk Mueller (mueller (at) kde.org)
      5  *           (C) 2006 Alexey Proskuryakov (ap (at) webkit.org)
      6  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
      7  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
      8  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
      9  *
     10  * This library is free software; you can redistribute it and/or
     11  * modify it under the terms of the GNU Library General Public
     12  * License as published by the Free Software Foundation; either
     13  * version 2 of the License, or (at your option) any later version.
     14  *
     15  * This library is distributed in the hope that it will be useful,
     16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     18  * Library General Public License for more details.
     19  *
     20  * You should have received a copy of the GNU Library General Public License
     21  * along with this library; see the file COPYING.LIB.  If not, write to
     22  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     23  * Boston, MA 02110-1301, USA.
     24  *
     25  */
     26 
     27 #ifndef DocumentMarkerController_h
     28 #define DocumentMarkerController_h
     29 
     30 #include "DocumentMarker.h"
     31 #include <wtf/HashMap.h>
     32 #include <wtf/Vector.h>
     33 
     34 namespace WebCore {
     35 
     36 class IntPoint;
     37 class IntRect;
     38 class Node;
     39 class Range;
     40 
     41 class DocumentMarkerController {
     42     WTF_MAKE_NONCOPYABLE(DocumentMarkerController); WTF_MAKE_FAST_ALLOCATED;
     43 public:
     44     DocumentMarkerController();
     45     ~DocumentMarkerController() { detach(); }
     46 
     47     void detach();
     48     void addMarker(Range*, DocumentMarker::MarkerType, String description = String());
     49     void addMarker(Node*, DocumentMarker);
     50     void copyMarkers(Node* srcNode, unsigned startOffset, int length, Node* dstNode, int delta);
     51     bool hasMarkers(Range*, DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers());
     52 
     53     // When a marker partially overlaps with range, if removePartiallyOverlappingMarkers is true, we completely
     54     // remove the marker. If the argument is false, we will adjust the span of the marker so that it retains
     55     // the portion that is outside of the range.
     56     enum RemovePartiallyOverlappingMarkerOrNot { DoNotRemovePartiallyOverlappingMarker, RemovePartiallyOverlappingMarker };
     57     void removeMarkers(Range*, DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers(), RemovePartiallyOverlappingMarkerOrNot = DoNotRemovePartiallyOverlappingMarker);
     58     void removeMarkers(Node*, unsigned startOffset, int length, DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers(),  RemovePartiallyOverlappingMarkerOrNot = DoNotRemovePartiallyOverlappingMarker);
     59 
     60     void removeMarkers(DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers());
     61     void removeMarkers(Node*, DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers());
     62     void repaintMarkers(DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers());
     63     void setRenderedRectForMarker(Node*, const DocumentMarker&, const IntRect&);
     64     void invalidateRenderedRectsForMarkersInRect(const IntRect&);
     65     void shiftMarkers(Node*, unsigned startOffset, int delta);
     66     void setMarkersActive(Range*, bool);
     67     void setMarkersActive(Node*, unsigned startOffset, unsigned endOffset, bool);
     68 
     69     DocumentMarker* markerContainingPoint(const IntPoint&, DocumentMarker::MarkerType);
     70     Vector<DocumentMarker> markersForNode(Node*);
     71     Vector<DocumentMarker> markersInRange(Range*, DocumentMarker::MarkerType);
     72     Vector<IntRect> renderedRectsForMarkers(DocumentMarker::MarkerType);
     73     void clearDescriptionOnMarkersIntersectingRange(Range*, DocumentMarker::MarkerTypes);
     74 
     75 #ifndef NDEBUG
     76     void showMarkers() const;
     77 #endif
     78 
     79 private:
     80     typedef std::pair<Vector<DocumentMarker>, Vector<IntRect> > MarkerMapVectorPair;
     81     typedef HashMap<RefPtr<Node>, MarkerMapVectorPair*> MarkerMap;
     82     bool possiblyHasMarkers(DocumentMarker::MarkerTypes);
     83     void removeMarkersFromMarkerMapVectorPair(Node*, MarkerMapVectorPair*, DocumentMarker::MarkerTypes);
     84 
     85     MarkerMap m_markers;
     86     // Provide a quick way to determine whether a particular marker type is absent without going through the map.
     87     DocumentMarker::MarkerTypes m_possiblyExistingMarkerTypes;
     88 };
     89 
     90 } // namespace WebCore
     91 
     92 #ifndef NDEBUG
     93 void showDocumentMarkers(const WebCore::DocumentMarkerController*);
     94 #endif
     95 
     96 #endif // DocumentMarkerController_h
     97