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 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 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 "HTMLDivElement.h" 31#include "PopupOpeningObserver.h" 32#include "Timer.h" 33 34namespace WebCore { 35 36class SpinButtonElement final : public HTMLDivElement, public PopupOpeningObserver { 37public: 38 enum UpDownState { 39 Indeterminate, // Hovered, but the event is not handled. 40 Down, 41 Up, 42 }; 43 44 class SpinButtonOwner { 45 public: 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&); 58 UpDownState upDownState() const { return m_upDownState; } 59 virtual void releaseCapture(); 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 69private: 70 SpinButtonElement(Document&, SpinButtonOwner&); 71 72 virtual const AtomicString& shadowPseudoId() const override; 73 virtual void willDetachRenderers() override; 74 virtual bool isSpinButtonElement() const override { return true; } 75 virtual bool isDisabledFormControl() const override { return shadowHost() && shadowHost()->isDisabledFormControl(); } 76 virtual bool matchesReadOnlyPseudoClass() const override; 77 virtual bool matchesReadWritePseudoClass() const override; 78 virtual void defaultEventHandler(Event*) override; 79 virtual void willOpenPopup() override; 80 void doStepAction(int); 81 void startRepeatingTimer(); 82 void stopRepeatingTimer(); 83 void repeatingTimerFired(Timer<SpinButtonElement>*); 84 virtual void setHovered(bool = true) override; 85 bool shouldRespondToMouseEvents(); 86 virtual bool isMouseFocusable() const override { return false; } 87 88 SpinButtonOwner* m_spinButtonOwner; 89 bool m_capturing; 90 UpDownState m_upDownState; 91 UpDownState m_pressStartingState; 92 Timer<SpinButtonElement> m_repeatingTimer; 93}; 94 95} // namespace 96 97#endif 98