1/*
2 * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
3 * Copyright (C) 2010 Google Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 *     * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *     * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 *     * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef SliderThumbElement_h
33#define SliderThumbElement_h
34
35#include "FloatPoint.h"
36#include "HTMLDivElement.h"
37#include "HTMLNames.h"
38#include "RenderStyleConstants.h"
39#include <wtf/Forward.h>
40
41namespace WebCore {
42
43class HTMLElement;
44class HTMLInputElement;
45class Event;
46class FloatPoint;
47
48class SliderThumbElement : public HTMLDivElement {
49public:
50    static PassRefPtr<SliderThumbElement> create(Document*);
51
52    bool inDragMode() const { return m_inDragMode; }
53    void setPositionFromValue();
54
55    void dragFrom(const IntPoint&);
56    virtual void defaultEventHandler(Event*);
57#if PLATFORM(ANDROID) && ENABLE(TOUCH_EVENTS)
58    virtual void attach();
59#endif
60    virtual void detach();
61    virtual const AtomicString& shadowPseudoId() const;
62
63private:
64    SliderThumbElement(Document*);
65    virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
66    void startDragging();
67    void stopDragging();
68    void setPositionFromPoint(const IntPoint&);
69    HTMLInputElement* hostInput();
70
71    FloatPoint m_offsetToThumb;
72    bool m_inDragMode;
73};
74
75inline SliderThumbElement::SliderThumbElement(Document* document)
76    : HTMLDivElement(HTMLNames::divTag, document)
77    , m_inDragMode(false)
78{
79}
80
81inline PassRefPtr<SliderThumbElement> SliderThumbElement::create(Document* document)
82{
83    return adoptRef(new SliderThumbElement(document));
84}
85
86inline SliderThumbElement* toSliderThumbElement(Node* node)
87{
88    ASSERT(!node || node->isHTMLElement());
89    return static_cast<SliderThumbElement*>(node);
90}
91
92}
93
94#endif
95