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/RenderBlock.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& part() const OVERRIDE; 59 HTMLInputElement* hostInput() const; 60 void setPositionFromPoint(const LayoutPoint&); 61 62 private: 63 SliderThumbElement(Document*); 64 virtual RenderObject* createRenderer(RenderStyle*); 65 virtual PassRefPtr<Element> cloneElementWithoutAttributesAndChildren(); 66 virtual bool isDisabledFormControl() const OVERRIDE; 67 virtual bool matchesReadOnlyPseudoClass() const OVERRIDE; 68 virtual bool matchesReadWritePseudoClass() const OVERRIDE; 69 virtual Node* focusDelegate(); 70 void startDragging(); 71 void stopDragging(); 72 73 bool m_inDragMode; 74 }; 75 76 inline SliderThumbElement::SliderThumbElement(Document* document) 77 : HTMLDivElement(HTMLNames::divTag, document) 78 , m_inDragMode(false) 79 { 80 } 81 82 inline PassRefPtr<SliderThumbElement> SliderThumbElement::create(Document* document) 83 { 84 return adoptRef(new SliderThumbElement(document)); 85 } 86 87 inline PassRefPtr<Element> SliderThumbElement::cloneElementWithoutAttributesAndChildren() 88 { 89 return create(document()); 90 } 91 92 inline SliderThumbElement* toSliderThumbElement(Node* node) 93 { 94 ASSERT_WITH_SECURITY_IMPLICATION(!node || node->isHTMLElement()); 95 return static_cast<SliderThumbElement*>(node); 96 } 97 98 // This always return a valid pointer. 99 // An assertion fails if the specified node is not a range input. 100 SliderThumbElement* sliderThumbElementOf(Node*); 101 HTMLElement* sliderTrackElementOf(Node*); 102 103 // -------------------------------- 104 105 class RenderSliderThumb FINAL : public RenderBlock { 106 public: 107 RenderSliderThumb(SliderThumbElement*); 108 void updateAppearance(RenderStyle* parentStyle); 109 110 private: 111 virtual bool isSliderThumb() const; 112 }; 113 114 // -------------------------------- 115 116 class SliderContainerElement FINAL : public HTMLDivElement { 117 public: 118 static PassRefPtr<SliderContainerElement> create(Document*); 119 120 private: 121 SliderContainerElement(Document*); 122 virtual RenderObject* createRenderer(RenderStyle*); 123 virtual const AtomicString& part() const; 124 }; 125 126 } 127 128 #endif 129