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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/IntPoint.h>
namespace WebKit {
#if ENABLE(TOUCH_EVENTS)
#if PLATFORM(IOS_FAMILY)
// FIXME: Having "Platform" in the name makes it sound like this event is platform-specific or
// low-level in some way. That doesn't seem to be the case.
class WebPlatformTouchPoint {
public:
enum class State : uint8_t {
Released,
Pressed,
Moved,
Stationary,
Cancelled
};
enum class TouchType : bool {
Direct,
Stylus
};
WebPlatformTouchPoint() = default;
WebPlatformTouchPoint(unsigned identifier, WebCore::IntPoint location, State phase)
: m_identifier(identifier)
, m_location(location)
, m_phase(phase)
{
}
#if ENABLE(IOS_TOUCH_EVENTS)
WebPlatformTouchPoint(unsigned identifier, WebCore::IntPoint location, State phase, double radiusX, double radiusY, double rotationAngle, double force, double altitudeAngle, double azimuthAngle, TouchType touchType)
: m_identifier(identifier)
, m_location(location)
, m_phase(phase)
, m_radiusX(radiusX)
, m_radiusY(radiusY)
, m_rotationAngle(rotationAngle)
, m_force(force)
, m_altitudeAngle(altitudeAngle)
, m_azimuthAngle(azimuthAngle)
, m_touchType(touchType)
{
}
#endif
unsigned identifier() const { return m_identifier; }
WebCore::IntPoint location() const { return m_location; }
State phase() const { return m_phase; }
State state() const { return phase(); }
#if ENABLE(IOS_TOUCH_EVENTS)
void setRadiusX(double radiusX) { m_radiusX = radiusX; }
double radiusX() const { return m_radiusX; }
void setRadiusY(double radiusY) { m_radiusY = radiusY; }
double radiusY() const { return m_radiusY; }
void setRotationAngle(double rotationAngle) { m_rotationAngle = rotationAngle; }
double rotationAngle() const { return m_rotationAngle; }
void setForce(double force) { m_force = force; }
double force() const { return m_force; }
void setAltitudeAngle(double altitudeAngle) { m_altitudeAngle = altitudeAngle; }
double altitudeAngle() const { return m_altitudeAngle; }
void setAzimuthAngle(double azimuthAngle) { m_azimuthAngle = azimuthAngle; }
double azimuthAngle() const { return m_azimuthAngle; }
void setTouchType(TouchType touchType) { m_touchType = touchType; }
TouchType touchType() const { return m_touchType; }
#endif
private:
unsigned m_identifier { 0 };
WebCore::IntPoint m_location;
State m_phase { State::Released };
#if ENABLE(IOS_TOUCH_EVENTS)
double m_radiusX { 0 };
double m_radiusY { 0 };
double m_rotationAngle { 0 };
double m_force { 0 };
double m_altitudeAngle { 0 };
double m_azimuthAngle { 0 };
TouchType m_touchType { TouchType::Direct };
#endif
};
class WebTouchEvent : public WebEvent {
public:
WebTouchEvent() = default;
WebTouchEvent(WebEvent&& event, const Vector<WebPlatformTouchPoint>& touchPoints, WebCore::IntPoint position, bool isPotentialTap, bool isGesture, float gestureScale, float gestureRotation, bool canPreventNativeGestures = true)
: WebEvent(WTFMove(event))
, m_touchPoints(touchPoints)
, m_position(position)
, m_canPreventNativeGestures(canPreventNativeGestures)
, m_isPotentialTap(isPotentialTap)
, m_isGesture(isGesture)
, m_gestureScale(gestureScale)
, m_gestureRotation(gestureRotation)
{
ASSERT(type() == WebEventType::TouchStart || type() == WebEventType::TouchMove || type() == WebEventType::TouchEnd || type() == WebEventType::TouchCancel);
}
const Vector<WebPlatformTouchPoint>& touchPoints() const { return m_touchPoints; }
WebCore::IntPoint position() const { return m_position; }
bool isPotentialTap() const { return m_isPotentialTap; }
bool isGesture() const { return m_isGesture; }
float gestureScale() const { return m_gestureScale; }
float gestureRotation() const { return m_gestureRotation; }
bool canPreventNativeGestures() const { return m_canPreventNativeGestures; }
void setCanPreventNativeGestures(bool canPreventNativeGestures) { m_canPreventNativeGestures = canPreventNativeGestures; }
bool allTouchPointsAreReleased() const;
void encode(IPC::Encoder&) const;
static WARN_UNUSED_RETURN bool decode(IPC::Decoder&, WebTouchEvent&);
private:
Vector<WebPlatformTouchPoint> m_touchPoints;
WebCore::IntPoint m_position;
bool m_canPreventNativeGestures { false };
bool m_isPotentialTap { false };
bool m_isGesture { false };
float m_gestureScale { 0 };
float m_gestureRotation { 0 };
};
#else // !PLATFORM(IOS_FAMILY)
class WebPlatformTouchPoint {
public:
enum class State : uint8_t {
Released,
Pressed,
Moved,
Stationary,
Cancelled
};
WebPlatformTouchPoint()
: m_rotationAngle(0.0), m_force(0.0) { }
WebPlatformTouchPoint(uint32_t id, State, const WebCore::IntPoint& screenPosition, const WebCore::IntPoint& position);
WebPlatformTouchPoint(uint32_t id, State, const WebCore::IntPoint& screenPosition, const WebCore::IntPoint& position, const WebCore::IntSize& radius, float rotationAngle = 0.0, float force = 0.0);
uint32_t id() const { return m_id; }
State state() const { return m_state; }
const WebCore::IntPoint& screenPosition() const { return m_screenPosition; }
const WebCore::IntPoint& position() const { return m_position; }
const WebCore::IntSize& radius() const { return m_radius; }
float rotationAngle() const { return m_rotationAngle; }
float force() const { return m_force; }
void setState(State state) { m_state = state; }
void encode(IPC::Encoder&) const;
static std::optional<WebPlatformTouchPoint> decode(IPC::Decoder&);
private:
uint32_t m_id;
State m_state;
WebCore::IntPoint m_screenPosition;
WebCore::IntPoint m_position;
WebCore::IntSize m_radius;
float m_rotationAngle;
float m_force;
};
class WebTouchEvent : public WebEvent {
public:
WebTouchEvent() { }
WebTouchEvent(WebEvent&&, Vector<WebPlatformTouchPoint>&&);
const Vector<WebPlatformTouchPoint>& touchPoints() const { return m_touchPoints; }
bool allTouchPointsAreReleased() const;
private:
static bool isTouchEventType(WebEventType);
Vector<WebPlatformTouchPoint> m_touchPoints;
};
#endif // PLATFORM(IOS_FAMILY)
#endif // ENABLE(TOUCH_EVENTS)
} // namespace WebKit
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