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1 /*
2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
4  * Copyright (C) 2004, 2008, 2009, 2011 Apple Inc. All rights reserved.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Library General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Library General Public License for more details.
15  *
16  * You should have received a copy of the GNU Library General Public License
17  * along with this library; see the file COPYING.LIB.  If not, write to
18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19  * Boston, MA 02110-1301, USA.
20  *
21  */
22 
23 #ifndef HTMLAreaElement_h
24 #define HTMLAreaElement_h
25 
26 #include "HTMLAnchorElement.h"
27 #include "IntSize.h"
28 #include <wtf/OwnArrayPtr.h>
29 
30 namespace WebCore {
31 
32 class HitTestResult;
33 class HTMLImageElement;
34 class Path;
35 
36 class HTMLAreaElement : public HTMLAnchorElement {
37 public:
38     static PassRefPtr<HTMLAreaElement> create(const QualifiedName&, Document*);
39 
isDefault()40     bool isDefault() const { return m_shape == Default; }
41 
42     bool mapMouseEvent(int x, int y, const IntSize&, HitTestResult&);
43 
44     IntRect computeRect(RenderObject*) const;
45     Path computePath(RenderObject*) const;
46 
47     // The parent map's image.
48     HTMLImageElement* imageElement() const;
49 
50 private:
51     HTMLAreaElement(const QualifiedName&, Document*);
52 
53     virtual void parseMappedAttribute(Attribute*);
54     virtual bool supportsFocus() const;
55     virtual String target() const;
56     virtual bool isKeyboardFocusable(KeyboardEvent*) const;
57     virtual bool isMouseFocusable() const;
58     virtual bool isFocusable() const;
59     virtual void updateFocusAppearance(bool /*restorePreviousSelection*/);
60     virtual void setFocus(bool);
61 
62     enum Shape { Default, Poly, Rect, Circle, Unknown };
63     Path getRegion(const IntSize&) const;
64 
65     OwnPtr<Path> m_region;
66     OwnArrayPtr<Length> m_coords;
67     int m_coordsLen;
68     IntSize m_lastSize;
69     Shape m_shape;
70 };
71 
72 } //namespace
73 
74 #endif
75