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 blink {
29
30class RenderWidget : public RenderReplaced {
31public:
32    virtual ~RenderWidget();
33
34    Widget* widget() const;
35
36    void updateOnWidgetChange();
37    void updateWidgetPosition();
38    void widgetPositionsUpdated();
39
40#if !ENABLE(OILPAN)
41    void ref() { ++m_refCount; }
42    void deref();
43#endif
44    virtual bool isWidget() const OVERRIDE FINAL { return true; }
45    bool updateWidgetGeometry();
46
47protected:
48    explicit RenderWidget(Element*);
49
50    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE FINAL;
51    virtual void layout() OVERRIDE;
52    virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE;
53    virtual CursorDirective getCursor(const LayoutPoint&, Cursor&) const OVERRIDE FINAL;
54    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE;
55
56    virtual void paintContents(PaintInfo&, const LayoutPoint&);
57
58private:
59    virtual void willBeDestroyed() OVERRIDE FINAL;
60    virtual void destroy() OVERRIDE FINAL;
61
62    bool setWidgetGeometry(const LayoutRect&);
63#if !ENABLE(OILPAN)
64    int m_refCount;
65#endif
66};
67
68DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderWidget, isWidget());
69
70} // namespace blink
71
72#endif // RenderWidget_h
73