1 /* 2 * Copyright (C) 2006, 2008, 2010 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 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef SpinButtonElement_h 28 #define SpinButtonElement_h 29 30 #include "core/html/HTMLDivElement.h" 31 #include "core/page/PopupOpeningObserver.h" 32 #include "platform/Timer.h" 33 34 namespace WebCore { 35 36 class SpinButtonElement FINAL : public HTMLDivElement, public PopupOpeningObserver { 37 public: 38 enum UpDownState { 39 Indeterminate, // Hovered, but the event is not handled. 40 Down, 41 Up, 42 }; 43 44 class SpinButtonOwner { 45 public: ~SpinButtonOwner()46 virtual ~SpinButtonOwner() { } 47 virtual void focusAndSelectSpinButtonOwner() = 0; 48 virtual bool shouldSpinButtonRespondToMouseEvents() = 0; 49 virtual bool shouldSpinButtonRespondToWheelEvents() = 0; 50 virtual void spinButtonStepDown() = 0; 51 virtual void spinButtonStepUp() = 0; 52 }; 53 54 // The owner of SpinButtonElement must call removeSpinButtonOwner 55 // because SpinButtonElement can be outlive SpinButtonOwner 56 // implementation, e.g. during event handling. 57 static PassRefPtr<SpinButtonElement> create(Document&, SpinButtonOwner&); upDownState()58 UpDownState upDownState() const { return m_upDownState; } 59 virtual void releaseCapture(); removeSpinButtonOwner()60 void removeSpinButtonOwner() { m_spinButtonOwner = 0; } 61 62 void step(int amount); 63 64 virtual bool willRespondToMouseMoveEvents() OVERRIDE; 65 virtual bool willRespondToMouseClickEvents() OVERRIDE; 66 67 void forwardEvent(Event*); 68 69 private: 70 SpinButtonElement(Document&, SpinButtonOwner&); 71 72 virtual void detach(const AttachContext& = AttachContext()) OVERRIDE; isSpinButtonElement()73 virtual bool isSpinButtonElement() const { return true; } isDisabledFormControl()74 virtual bool isDisabledFormControl() const OVERRIDE { return shadowHost() && shadowHost()->isDisabledFormControl(); } 75 virtual bool matchesReadOnlyPseudoClass() const OVERRIDE; 76 virtual bool matchesReadWritePseudoClass() const OVERRIDE; 77 virtual void defaultEventHandler(Event*); 78 virtual void willOpenPopup() OVERRIDE; 79 void doStepAction(int); 80 void startRepeatingTimer(); 81 void stopRepeatingTimer(); 82 void repeatingTimerFired(Timer<SpinButtonElement>*); 83 virtual void setHovered(bool = true); 84 bool shouldRespondToMouseEvents(); isMouseFocusable()85 virtual bool isMouseFocusable() const { return false; } 86 87 SpinButtonOwner* m_spinButtonOwner; 88 bool m_capturing; 89 UpDownState m_upDownState; 90 UpDownState m_pressStartingState; 91 Timer<SpinButtonElement> m_repeatingTimer; 92 }; 93 94 DEFINE_TYPE_CASTS(SpinButtonElement, Node, node, toElement(node)->isSpinButtonElement(), toElement(node).isSpinButtonElement()); 95 96 } // namespace 97 98 #endif 99