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/*
Copyright (C) 1997 Martin Jones (mjones@kde.org)
(C) 1998 Waldo Bastian (bastian@kde.org)
(C) 1998, 1999 Torben Weis (weis@kde.org)
(C) 1999 Lars Knoll (knoll@kde.org)
(C) 1999 Antti Koivisto (koivisto@kde.org)
Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef FrameView_h
#define FrameView_h
#include "IntSize.h"
#include "RenderLayer.h"
#include "ScrollView.h"
#include <wtf/Forward.h>
#include <wtf/OwnPtr.h>
namespace WebCore {
class Color;
class Event;
class EventTargetNode;
class Frame;
class FrameViewPrivate;
class IntRect;
class PlatformMouseEvent;
class Node;
class RenderLayer;
class RenderObject;
class RenderPartObject;
class String;
template <typename T> class Timer;
class FrameView : public ScrollView {
public:
friend class RenderView;
FrameView(Frame*);
FrameView(Frame*, const IntSize& initialSize);
virtual ~FrameView();
virtual HostWindow* hostWindow() const;
virtual void invalidateRect(const IntRect&);
Frame* frame() const { return m_frame.get(); }
void clearFrame();
void ref() { ++m_refCount; }
void deref() { if (!--m_refCount) delete this; }
bool hasOneRef() { return m_refCount == 1; }
int marginWidth() const { return m_margins.width(); } // -1 means default
int marginHeight() const { return m_margins.height(); } // -1 means default
void setMarginWidth(int);
void setMarginHeight(int);
virtual void setCanHaveScrollbars(bool);
virtual PassRefPtr<Scrollbar> createScrollbar(ScrollbarOrientation);
virtual void setContentsSize(const IntSize&);
void layout(bool allowSubtree = true);
bool didFirstLayout() const;
void layoutTimerFired(Timer<FrameView>*);
void scheduleRelayout();
void scheduleRelayoutOfSubtree(RenderObject*);
void unscheduleRelayout();
bool layoutPending() const;
RenderObject* layoutRoot(bool onlyDuringLayout = false) const;
int layoutCount() const;
// These two helper functions just pass through to the RenderView.
bool needsLayout() const;
void setNeedsLayout();
bool needsFullRepaint() const;
void resetScrollbars();
void clear();
bool isTransparent() const;
void setTransparent(bool isTransparent);
Color baseBackgroundColor() const;
void setBaseBackgroundColor(Color);
void updateBackgroundRecursively(const Color&, bool);
bool shouldUpdateWhileOffscreen() const;
void setShouldUpdateWhileOffscreen(bool);
void adjustViewSize();
void initScrollbars();
void updateDefaultScrollbarState();
virtual IntRect windowClipRect(bool clipToContents = true) const;
IntRect windowClipRectForLayer(const RenderLayer*, bool clipToLayerContents) const;
virtual bool isActive() const;
virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&);
virtual void valueChanged(Scrollbar*);
virtual void getTickmarks(Vector<IntRect>&) const;
virtual IntRect windowResizerRect() const;
virtual void scrollRectIntoViewRecursively(const IntRect&);
virtual void setScrollPosition(const IntPoint&);
String mediaType() const;
void setMediaType(const String&);
void setUseSlowRepaints();
void addSlowRepaintObject();
void removeSlowRepaintObject();
void beginDeferredRepaints();
void endDeferredRepaints();
#if ENABLE(DASHBOARD_SUPPORT)
void updateDashboardRegions();
#endif
void updateControlTints();
void restoreScrollbar();
void scheduleEvent(PassRefPtr<Event>, PassRefPtr<EventTargetNode>);
void pauseScheduledEvents();
void resumeScheduledEvents();
void postLayoutTimerFired(Timer<FrameView>*);
bool wasScrolledByUser() const;
void setWasScrolledByUser(bool);
void addWidgetToUpdate(RenderPartObject*);
void removeWidgetToUpdate(RenderPartObject*);
virtual void paintContents(GraphicsContext*, const IntRect& damageRect);
void setPaintRestriction(PaintRestriction);
bool isPainting() const;
void setNodeToDraw(Node*);
static double currentPaintTimeStamp() { return sCurrentPaintTimeStamp; } // returns 0 if not painting
void layoutIfNeededRecursive();
void setIsVisuallyNonEmpty();
private:
void init();
virtual bool isFrameView() const;
bool useSlowRepaints() const;
void applyOverflowToViewport(RenderObject*, ScrollbarMode& hMode, ScrollbarMode& vMode);
void updateOverflowStatus(bool horizontalOverflow, bool verticalOverflow);
void dispatchScheduledEvents();
void performPostLayoutTasks();
virtual void repaintContentRectangle(const IntRect&, bool immediate);
virtual void contentsResized() { setNeedsLayout(); }
virtual void visibleContentsResized() { layout(); }
static double sCurrentPaintTimeStamp; // used for detecting decoded resource thrash in the cache
unsigned m_refCount;
IntSize m_size;
IntSize m_margins;
OwnPtr<HashSet<RenderPartObject*> > m_widgetUpdateSet;
RefPtr<Frame> m_frame;
FrameViewPrivate* d;
};
}
#endif
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