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
41 namespace WebCore {
42
43 class HTMLElement;
44 class HTMLInputElement;
45 class Event;
46 class FloatPoint;
47
48 class SliderThumbElement : public HTMLDivElement {
49 public:
50 static PassRefPtr<SliderThumbElement> create(Document*);
51
inDragMode()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
63 private:
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
SliderThumbElement(Document * document)75 inline SliderThumbElement::SliderThumbElement(Document* document)
76 : HTMLDivElement(HTMLNames::divTag, document)
77 , m_inDragMode(false)
78 {
79 }
80
create(Document * document)81 inline PassRefPtr<SliderThumbElement> SliderThumbElement::create(Document* document)
82 {
83 return adoptRef(new SliderThumbElement(document));
84 }
85
toSliderThumbElement(Node * node)86 inline SliderThumbElement* toSliderThumbElement(Node* node)
87 {
88 ASSERT(!node || node->isHTMLElement());
89 return static_cast<SliderThumbElement*>(node);
90 }
91
92 }
93
94 #endif
95