1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2005, 2006, 2009, 2010 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 RenderWidget_h
#define RenderWidget_h
#include "OverlapTestRequestClient.h"
#include "RenderReplaced.h"
namespace WebCore {
class Widget;
class RenderWidget : public RenderReplaced, private OverlapTestRequestClient {
public:
virtual ~RenderWidget();
Widget* widget() const { return m_widget.get(); }
virtual void setWidget(PassRefPtr<Widget>);
static RenderWidget* find(const Widget*);
void updateWidgetPosition();
void widgetPositionsUpdated();
IntRect windowClipRect() const;
void showSubstituteImage(PassRefPtr<Image>);
static void suspendWidgetHierarchyUpdates();
static void resumeWidgetHierarchyUpdates();
RenderArena* ref() { ++m_refCount; return renderArena(); }
void deref(RenderArena*);
protected:
RenderWidget(Node*);
FrameView* frameView() const { return m_frameView; }
void clearWidget();
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
virtual void layout();
virtual void paint(PaintInfo&, int x, int y);
private:
virtual bool isWidget() const { return true; }
virtual void destroy();
virtual void setSelectionState(SelectionState);
virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
virtual void setOverlapTestResult(bool);
bool setWidgetGeometry(const IntRect&);
RefPtr<Widget> m_widget;
RefPtr<Image> m_substituteImage;
FrameView* m_frameView;
IntRect m_clipRect; // The rectangle needs to remain correct after scrolling, so it is stored in content view coordinates, and not clipped to window.
int m_refCount;
};
inline RenderWidget* toRenderWidget(RenderObject* object)
{
ASSERT(!object || object->isWidget());
return static_cast<RenderWidget*>(object);
}
inline const RenderWidget* toRenderWidget(const RenderObject* object)
{
ASSERT(!object || object->isWidget());
return static_cast<const RenderWidget*>(object);
}
// This will catch anyone doing an unnecessary cast.
void toRenderWidget(const RenderWidget*);
} // namespace WebCore
#endif // RenderWidget_h
|
