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/*
* Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved.
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SpinButtonElement_h
#define SpinButtonElement_h
#include "core/CoreExport.h"
#include "core/html/HTMLDivElement.h"
#include "core/page/PopupOpeningObserver.h"
#include "platform/Timer.h"
namespace blink {
class CORE_EXPORT SpinButtonElement final : public HTMLDivElement,
public PopupOpeningObserver {
public:
enum UpDownState {
Indeterminate, // Hovered, but the event is not handled.
Down,
Up,
};
enum EventDispatch {
EventDispatchAllowed,
EventDispatchDisallowed,
};
class SpinButtonOwner : public GarbageCollectedMixin {
public:
virtual ~SpinButtonOwner() {}
virtual void focusAndSelectSpinButtonOwner() = 0;
virtual bool shouldSpinButtonRespondToMouseEvents() = 0;
virtual bool shouldSpinButtonRespondToWheelEvents() = 0;
virtual void spinButtonDidReleaseMouseCapture(EventDispatch) = 0;
virtual void spinButtonStepDown() = 0;
virtual void spinButtonStepUp() = 0;
};
// The owner of SpinButtonElement must call removeSpinButtonOwner
// because SpinButtonElement can be outlive SpinButtonOwner
// implementation, e.g. during event handling.
static SpinButtonElement* create(Document&, SpinButtonOwner&);
UpDownState getUpDownState() const { return m_upDownState; }
void releaseCapture(EventDispatch = EventDispatchAllowed);
void removeSpinButtonOwner() { m_spinButtonOwner = nullptr; }
void step(int amount);
bool willRespondToMouseMoveEvents() override;
bool willRespondToMouseClickEvents() override;
void forwardEvent(Event*);
DECLARE_VIRTUAL_TRACE();
private:
SpinButtonElement(Document&, SpinButtonOwner&);
void detachLayoutTree(const AttachContext&) override;
bool isSpinButtonElement() const override { return true; }
bool isDisabledFormControl() const override {
return ownerShadowHost() && ownerShadowHost()->isDisabledFormControl();
}
bool matchesReadOnlyPseudoClass() const override;
bool matchesReadWritePseudoClass() const override;
void defaultEventHandler(Event*) override;
void willOpenPopup() override;
void doStepAction(int);
void startRepeatingTimer();
void stopRepeatingTimer();
void repeatingTimerFired(TimerBase*);
void setHovered(bool = true) override;
bool shouldRespondToMouseEvents();
bool isMouseFocusable() const override { return false; }
Member<SpinButtonOwner> m_spinButtonOwner;
bool m_capturing;
UpDownState m_upDownState;
UpDownState m_pressStartingState;
Timer<SpinButtonElement> m_repeatingTimer;
};
DEFINE_TYPE_CASTS(SpinButtonElement,
Node,
node,
toElement(node)->isSpinButtonElement(),
toElement(node).isSpinButtonElement());
} // namespace blink
#endif
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