1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * Copyright (C) 2004, 2005, 2006, 2009, 2010 Apple Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 * 20 */ 21 22#ifndef RenderWidget_h 23#define RenderWidget_h 24 25#include "core/rendering/RenderReplaced.h" 26#include "platform/Widget.h" 27 28namespace WebCore { 29 30class RenderWidget : public RenderReplaced { 31public: 32 virtual ~RenderWidget(); 33 34 Widget* widget() const { return m_widget.get(); } 35 virtual void setWidget(PassRefPtr<Widget>); 36 37 void updateWidgetPosition(); 38 void widgetPositionsUpdated(); 39 40 void setIsOverlapped(bool); 41 42 void ref() { ++m_refCount; } 43 void deref(); 44 45 class UpdateSuspendScope { 46 public: 47 UpdateSuspendScope(); 48 ~UpdateSuspendScope(); 49 }; 50 51protected: 52 explicit RenderWidget(Element*); 53 54 void clearWidget(); 55 56 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE FINAL; 57 virtual void layout(); 58 virtual void paint(PaintInfo&, const LayoutPoint&); 59 virtual CursorDirective getCursor(const LayoutPoint&, Cursor&) const; 60 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE; 61 62 virtual void paintContents(PaintInfo&, const LayoutPoint&); 63 64private: 65 virtual bool isWidget() const OVERRIDE FINAL { return true; } 66 67 virtual void willBeDestroyed() OVERRIDE FINAL; 68 virtual void destroy() OVERRIDE FINAL; 69 70 bool setWidgetGeometry(const LayoutRect&); 71 bool updateWidgetGeometry(); 72 73 RefPtr<Widget> m_widget; 74 FrameView* m_frameView; 75 IntRect m_clipRect; // The rectangle needs to remain correct after scrolling, so it is stored in content view coordinates, and not clipped to window. 76 int m_refCount; 77}; 78 79DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderWidget, isWidget()); 80 81} // namespace WebCore 82 83#endif // RenderWidget_h 84