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 blink { 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 enum EventDispatch { 44 EventDispatchAllowed, 45 EventDispatchDisallowed, 46 }; 47 class SpinButtonOwner : public WillBeGarbageCollectedMixin { 48 public: 49 virtual ~SpinButtonOwner() { } 50 virtual void focusAndSelectSpinButtonOwner() = 0; 51 virtual bool shouldSpinButtonRespondToMouseEvents() = 0; 52 virtual bool shouldSpinButtonRespondToWheelEvents() = 0; 53 virtual void spinButtonDidReleaseMouseCapture(EventDispatch) = 0; 54 virtual void spinButtonStepDown() = 0; 55 virtual void spinButtonStepUp() = 0; 56 }; 57 58 // The owner of SpinButtonElement must call removeSpinButtonOwner 59 // because SpinButtonElement can be outlive SpinButtonOwner 60 // implementation, e.g. during event handling. 61 static PassRefPtrWillBeRawPtr<SpinButtonElement> create(Document&, SpinButtonOwner&); 62 UpDownState upDownState() const { return m_upDownState; } 63 void releaseCapture(EventDispatch = EventDispatchAllowed); 64 void removeSpinButtonOwner() { m_spinButtonOwner = nullptr; } 65 66 void step(int amount); 67 68 virtual bool willRespondToMouseMoveEvents() OVERRIDE; 69 virtual bool willRespondToMouseClickEvents() OVERRIDE; 70 71 void forwardEvent(Event*); 72 73 virtual void trace(Visitor*) OVERRIDE; 74 75 private: 76 SpinButtonElement(Document&, SpinButtonOwner&); 77 78 virtual void detach(const AttachContext&) OVERRIDE; 79 virtual bool isSpinButtonElement() const OVERRIDE { return true; } 80 virtual bool isDisabledFormControl() const OVERRIDE { return shadowHost() && shadowHost()->isDisabledFormControl(); } 81 virtual bool matchesReadOnlyPseudoClass() const OVERRIDE; 82 virtual bool matchesReadWritePseudoClass() const OVERRIDE; 83 virtual void defaultEventHandler(Event*) OVERRIDE; 84 virtual void willOpenPopup() OVERRIDE; 85 void doStepAction(int); 86 void startRepeatingTimer(); 87 void stopRepeatingTimer(); 88 void repeatingTimerFired(Timer<SpinButtonElement>*); 89 virtual void setHovered(bool = true) OVERRIDE; 90 bool shouldRespondToMouseEvents(); 91 virtual bool isMouseFocusable() const OVERRIDE { return false; } 92 93 RawPtrWillBeMember<SpinButtonOwner> m_spinButtonOwner; 94 bool m_capturing; 95 UpDownState m_upDownState; 96 UpDownState m_pressStartingState; 97 Timer<SpinButtonElement> m_repeatingTimer; 98 }; 99 100 DEFINE_TYPE_CASTS(SpinButtonElement, Node, node, toElement(node)->isSpinButtonElement(), toElement(node).isSpinButtonElement()); 101 102 } // namespace 103 104 #endif 105