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 "HTMLNames.h"
36 #include "core/html/HTMLDivElement.h"
37 #include "core/rendering/RenderBlockFlow.h"
38 #include "wtf/Forward.h"
39
40 namespace WebCore {
41
42 class HTMLElement;
43 class HTMLInputElement;
44 class Event;
45 class FloatPoint;
46
47 class SliderThumbElement FINAL : public HTMLDivElement {
48 public:
49 static PassRefPtr<SliderThumbElement> create(Document&);
50
51 void setPositionFromValue();
52
53 void dragFrom(const LayoutPoint&);
54 virtual void defaultEventHandler(Event*);
55 virtual bool willRespondToMouseMoveEvents() OVERRIDE;
56 virtual bool willRespondToMouseClickEvents() OVERRIDE;
57 virtual void detach(const AttachContext& = AttachContext()) OVERRIDE;
58 virtual const AtomicString& pseudo() const OVERRIDE;
59 HTMLInputElement* hostInput() const;
60 void setPositionFromPoint(const LayoutPoint&);
61 void stopDragging();
62
63 private:
64 SliderThumbElement(Document&);
65 virtual RenderObject* createRenderer(RenderStyle*);
66 virtual PassRefPtr<Element> cloneElementWithoutAttributesAndChildren();
67 virtual bool isDisabledFormControl() const OVERRIDE;
68 virtual bool matchesReadOnlyPseudoClass() const OVERRIDE;
69 virtual bool matchesReadWritePseudoClass() const OVERRIDE;
70 virtual Node* focusDelegate();
71 void startDragging();
72
73 bool m_inDragMode;
74 };
75
cloneElementWithoutAttributesAndChildren()76 inline PassRefPtr<Element> SliderThumbElement::cloneElementWithoutAttributesAndChildren()
77 {
78 return create(document());
79 }
80
toSliderThumbElement(Node * node)81 inline SliderThumbElement* toSliderThumbElement(Node* node)
82 {
83 ASSERT_WITH_SECURITY_IMPLICATION(!node || node->isHTMLElement());
84 return static_cast<SliderThumbElement*>(node);
85 }
86
87 // --------------------------------
88
89 class RenderSliderThumb FINAL : public RenderBlockFlow {
90 public:
91 RenderSliderThumb(SliderThumbElement*);
92 void updateAppearance(RenderStyle* parentStyle);
93
94 private:
95 virtual bool isSliderThumb() const;
supportsPartialLayout()96 virtual bool supportsPartialLayout() const OVERRIDE { return false; }
97 };
98
99 // --------------------------------
100
101 class SliderContainerElement FINAL : public HTMLDivElement {
102 public:
103 static PassRefPtr<SliderContainerElement> create(Document&);
104
105 private:
106 SliderContainerElement(Document&);
107 virtual RenderObject* createRenderer(RenderStyle*);
108 virtual const AtomicString& pseudo() const;
109 };
110
111 }
112
113 #endif
114