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 "LayoutRect.h"
28#include <memory>
29
30namespace WebCore {
31
32class HitTestResult;
33class HTMLImageElement;
34class Path;
35
36class HTMLAreaElement final : public HTMLAnchorElement {
37public:
38    static PassRefPtr<HTMLAreaElement> create(const QualifiedName&, Document&);
39
40    bool isDefault() const { return m_shape == Default; }
41
42    bool mapMouseEvent(LayoutPoint location, const LayoutSize&, HitTestResult&);
43
44    // FIXME: Use RenderElement* instead of RenderObject* once we upstream iOS's DOMUIKitExtensions.{h, mm}.
45    LayoutRect computeRect(RenderObject*) const;
46    Path computePath(RenderObject*) const;
47
48    // The parent map's image.
49    HTMLImageElement* imageElement() const;
50
51private:
52    HTMLAreaElement(const QualifiedName&, Document&);
53
54    virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
55    virtual bool supportsFocus() const override;
56    virtual String target() const override;
57    virtual bool isKeyboardFocusable(KeyboardEvent*) const override;
58    virtual bool isMouseFocusable() const override;
59    virtual bool isFocusable() const override;
60    virtual void updateFocusAppearance(bool /*restorePreviousSelection*/) override;
61    virtual void setFocus(bool) override;
62
63    enum Shape { Default, Poly, Rect, Circle, Unknown };
64    Path getRegion(const LayoutSize&) const;
65    void invalidateCachedRegion();
66
67    std::unique_ptr<Path> m_region;
68    std::unique_ptr<Length[]> m_coords;
69    int m_coordsLen;
70    LayoutSize m_lastSize;
71    Shape m_shape;
72};
73
74NODE_TYPE_CASTS(HTMLAreaElement)
75
76} //namespace
77
78#endif
79