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