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/*
* Copyright (C) 2010-2020 Apple Inc. All rights reserved.
* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
*
* 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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.
*/
#pragma once
#include "WebEvent.h"
#include <WebCore/FloatSize.h>
#include <WebCore/IntPoint.h>
namespace WTF {
class TextStream;
}
namespace WebKit {
class WebWheelEvent : public WebEvent {
public:
enum class Granularity : uint8_t {
ScrollByPageWheelEvent,
ScrollByPixelWheelEvent
};
enum class Phase : uint8_t {
None,
Began,
Stationary,
Changed,
Ended,
Cancelled,
MayBegin,
WillBegin,
};
enum class MomentumEndType : uint8_t {
Unknown,
Interrupted,
Natural,
};
WebWheelEvent(WebEvent&&, const WebCore::IntPoint& position, const WebCore::IntPoint& globalPosition, const WebCore::FloatSize& delta, const WebCore::FloatSize& wheelTicks, Granularity);
#if PLATFORM(COCOA)
WebWheelEvent(WebEvent&&, const WebCore::IntPoint& position, const WebCore::IntPoint& globalPosition, const WebCore::FloatSize& delta, const WebCore::FloatSize& wheelTicks, Granularity, bool directionInvertedFromDevice, Phase, Phase momentumPhase, bool hasPreciseScrollingDeltas, uint32_t scrollCount, const WebCore::FloatSize& unacceleratedScrollingDelta, MonotonicTime ioHIDEventTimestamp, std::optional<WebCore::FloatSize> rawPlatformDelta, MomentumEndType);
#elif PLATFORM(GTK) || USE(LIBWPE) || ENABLE(WPE_PLATFORM)
WebWheelEvent(WebEvent&&, const WebCore::IntPoint& position, const WebCore::IntPoint& globalPosition, const WebCore::FloatSize& delta, const WebCore::FloatSize& wheelTicks, Granularity, Phase, Phase momentumPhase, bool hasPreciseScrollingDeltas);
#endif
const WebCore::IntPoint position() const { return m_position; }
void setPosition(WebCore::IntPoint position) { m_position = position; }
const WebCore::IntPoint globalPosition() const { return m_globalPosition; }
const WebCore::FloatSize delta() const { return m_delta; }
const WebCore::FloatSize wheelTicks() const { return m_wheelTicks; }
Granularity granularity() const { return m_granularity; }
bool directionInvertedFromDevice() const { return m_directionInvertedFromDevice; }
Phase phase() const { return m_phase; }
Phase momentumPhase() const { return m_momentumPhase; }
MomentumEndType momentumEndType() const { return m_momentumEndType; }
#if PLATFORM(COCOA) || PLATFORM(GTK) || USE(LIBWPE) || ENABLE(WPE_PLATFORM)
bool hasPreciseScrollingDeltas() const { return m_hasPreciseScrollingDeltas; }
#endif
#if PLATFORM(COCOA)
MonotonicTime ioHIDEventTimestamp() const { return m_ioHIDEventTimestamp; }
std::optional<WebCore::FloatSize> rawPlatformDelta() const { return m_rawPlatformDelta; }
void setRawPlatformDelta(std::optional<WebCore::FloatSize>&& delta) { m_rawPlatformDelta = WTFMove(delta); }
uint32_t scrollCount() const { return m_scrollCount; }
const WebCore::FloatSize& unacceleratedScrollingDelta() const { return m_unacceleratedScrollingDelta; }
#endif
bool isMomentumEvent() const { return momentumPhase() != Phase::None && momentumPhase() != Phase::WillBegin; }
static bool isWheelEventType(WebEventType);
private:
WebCore::IntPoint m_position;
WebCore::IntPoint m_globalPosition;
WebCore::FloatSize m_delta;
WebCore::FloatSize m_wheelTicks;
Granularity m_granularity { Granularity::ScrollByPageWheelEvent };
Phase m_phase { Phase::None };
Phase m_momentumPhase { Phase::None };
MomentumEndType m_momentumEndType { MomentumEndType::Unknown };
bool m_directionInvertedFromDevice { false };
#if PLATFORM(COCOA) || PLATFORM(GTK) || USE(LIBWPE) || ENABLE(WPE_PLATFORM)
bool m_hasPreciseScrollingDeltas { false };
#endif
#if PLATFORM(COCOA)
MonotonicTime m_ioHIDEventTimestamp;
std::optional<WebCore::FloatSize> m_rawPlatformDelta;
uint32_t m_scrollCount { 0 };
WebCore::FloatSize m_unacceleratedScrollingDelta;
#endif
};
WTF::TextStream& operator<<(WTF::TextStream&, WebWheelEvent::Granularity);
WTF::TextStream& operator<<(WTF::TextStream&, WebWheelEvent::Phase);
WTF::TextStream& operator<<(WTF::TextStream&, WebWheelEvent::MomentumEndType);
WTF::TextStream& operator<<(WTF::TextStream&, const WebWheelEvent&);
} // namespace WebKit
SPECIALIZE_TYPE_TRAITS_BEGIN(WebKit::WebWheelEvent)
static bool isType(const WebKit::WebEvent& event) { return WebKit::WebWheelEvent::isWheelEventType(event.type()); }
SPECIALIZE_TYPE_TRAITS_END()
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