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 "core/html/HTMLAnchorElement.h"
27#include "platform/geometry/LayoutRect.h"
28
29namespace blink {
30
31class HitTestResult;
32class HTMLImageElement;
33class Path;
34
35class HTMLAreaElement FINAL : public HTMLAnchorElement {
36    DEFINE_WRAPPERTYPEINFO();
37public:
38    DECLARE_NODE_FACTORY(HTMLAreaElement);
39
40    bool isDefault() const { return m_shape == Default; }
41
42    bool mapMouseEvent(LayoutPoint location, const LayoutSize&, HitTestResult&);
43
44    LayoutRect computeRect(RenderObject*) const;
45    Path computePath(RenderObject*) const;
46
47    // The parent map's image.
48    HTMLImageElement* imageElement() const;
49
50private:
51    explicit HTMLAreaElement(Document&);
52
53    virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
54    virtual bool isKeyboardFocusable() const OVERRIDE;
55    virtual bool isMouseFocusable() const OVERRIDE;
56    virtual bool rendererIsFocusable() const OVERRIDE;
57    virtual void updateFocusAppearance(bool /*restorePreviousSelection*/) OVERRIDE;
58    virtual void setFocus(bool) OVERRIDE;
59
60    enum Shape { Default, Poly, Rect, Circle, Unknown };
61    Path getRegion(const LayoutSize&) const;
62    void invalidateCachedRegion();
63
64    OwnPtr<Path> m_region;
65    Vector<Length> m_coords;
66    LayoutSize m_lastSize;
67    Shape m_shape;
68};
69
70} // namespace blink
71
72#endif // HTMLAreaElement_h
73