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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 THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_SPIN_BUTTON_ELEMENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_SPIN_BUTTON_ELEMENT_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/html/html_div_element.h"
#include "third_party/blink/renderer/core/page/popup_opening_observer.h"
#include "third_party/blink/renderer/platform/timer.h"
namespace blink {
class CORE_EXPORT SpinButtonElement final : public HTMLDivElement,
public PopupOpeningObserver {
USING_GARBAGE_COLLECTED_MIXIN(SpinButtonElement);
public:
enum UpDownState {
kDown,
kUp,
};
enum EventDispatch {
kEventDispatchAllowed,
kEventDispatchDisallowed,
};
class SpinButtonOwner : public GarbageCollectedMixin {
public:
virtual ~SpinButtonOwner() = default;
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.
SpinButtonElement(Document&, SpinButtonOwner&);
UpDownState GetUpDownState() const { return up_down_state_; }
void ReleaseCapture(EventDispatch = kEventDispatchAllowed);
void RemoveSpinButtonOwner() { spin_button_owner_ = nullptr; }
void Step(int amount);
bool WillRespondToMouseMoveEvents() override;
bool WillRespondToMouseClickEvents() override;
void ForwardEvent(Event&);
void Trace(Visitor*) const override;
private:
void DetachLayoutTree(bool performing_reattach) 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*);
bool ShouldRespondToMouseEvents();
bool IsMouseFocusable() const override { return false; }
Member<SpinButtonOwner> spin_button_owner_;
bool capturing_;
UpDownState up_down_state_;
UpDownState press_starting_state_;
TaskRunnerTimer<SpinButtonElement> repeating_timer_;
};
template <>
struct DowncastTraits<SpinButtonElement> {
static bool AllowFrom(const Node& node) {
auto* element = DynamicTo<Element>(node);
return element && element->IsSpinButtonElement();
}
};
} // namespace blink
#endif
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