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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_layers_InputUtils_h
#define mozilla_layers_InputUtils_h
/**
* Defines a set of utility functions for generating input events
* to an APZC/APZCTM during APZ gtests.
*/
#include "APZTestCommon.h"
/* The InputReceiver template parameter used in the helper functions below needs
* to be a class that implements functions with the signatures:
* APZEventResult ReceiveInputEvent(const InputData& aEvent);
* void SetAllowedTouchBehavior(uint64_t aInputBlockId,
* const nsTArray<uint32_t>& aBehaviours);
* The classes that currently implement these are APZCTreeManager and
* TestAsyncPanZoomController. Using this template allows us to test individual
* APZC instances in isolation and also an entire APZ tree, while using the same
* code to dispatch input events.
*/
template <class InputReceiver>
void SetDefaultAllowedTouchBehavior(const RefPtr<InputReceiver>& aTarget,
uint64_t aInputBlockId,
int touchPoints = 1) {
nsTArray<uint32_t> defaultBehaviors;
// use the default value where everything is allowed
for (int i = 0; i < touchPoints; i++) {
defaultBehaviors.AppendElement(
mozilla::layers::AllowedTouchBehavior::HORIZONTAL_PAN |
mozilla::layers::AllowedTouchBehavior::VERTICAL_PAN |
mozilla::layers::AllowedTouchBehavior::PINCH_ZOOM |
mozilla::layers::AllowedTouchBehavior::ANIMATING_ZOOM);
}
aTarget->SetAllowedTouchBehavior(aInputBlockId, defaultBehaviors);
}
inline MultiTouchInput CreateMultiTouchInput(
MultiTouchInput::MultiTouchType aType, TimeStamp aTime) {
return MultiTouchInput(aType, MillisecondsSinceStartup(aTime), aTime, 0);
}
template <class InputReceiver>
APZEventResult TouchDown(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aPoint, TimeStamp aTime) {
MultiTouchInput mti =
CreateMultiTouchInput(MultiTouchInput::MULTITOUCH_START, aTime);
mti.mTouches.AppendElement(CreateSingleTouchData(0, aPoint));
return aTarget->ReceiveInputEvent(mti);
}
template <class InputReceiver>
APZEventResult TouchMove(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aPoint, TimeStamp aTime) {
MultiTouchInput mti =
CreateMultiTouchInput(MultiTouchInput::MULTITOUCH_MOVE, aTime);
mti.mTouches.AppendElement(CreateSingleTouchData(0, aPoint));
return aTarget->ReceiveInputEvent(mti);
}
template <class InputReceiver>
APZEventResult TouchUp(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aPoint, TimeStamp aTime) {
MultiTouchInput mti =
CreateMultiTouchInput(MultiTouchInput::MULTITOUCH_END, aTime);
mti.mTouches.AppendElement(CreateSingleTouchData(0, aPoint));
return aTarget->ReceiveInputEvent(mti);
}
template <class InputReceiver>
APZEventResult Wheel(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aPoint, const ScreenPoint& aDelta,
TimeStamp aTime) {
ScrollWheelInput input(aTime, 0, ScrollWheelInput::SCROLLMODE_INSTANT,
ScrollWheelInput::SCROLLDELTA_PIXEL, aPoint, aDelta.x,
aDelta.y, false, WheelDeltaAdjustmentStrategy::eNone);
return aTarget->ReceiveInputEvent(input);
}
template <class InputReceiver>
APZEventResult SmoothWheel(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aPoint,
const ScreenPoint& aDelta, TimeStamp aTime) {
ScrollWheelInput input(aTime, 0, ScrollWheelInput::SCROLLMODE_SMOOTH,
ScrollWheelInput::SCROLLDELTA_LINE, aPoint, aDelta.x,
aDelta.y, false, WheelDeltaAdjustmentStrategy::eNone);
return aTarget->ReceiveInputEvent(input);
}
template <class InputReceiver>
APZEventResult MouseDown(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aPoint, TimeStamp aTime) {
MouseInput input(MouseInput::MOUSE_DOWN,
MouseInput::ButtonType::PRIMARY_BUTTON, 0, 0, aPoint, aTime,
0);
return aTarget->ReceiveInputEvent(input);
}
template <class InputReceiver>
APZEventResult MouseMove(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aPoint, TimeStamp aTime) {
MouseInput input(MouseInput::MOUSE_MOVE,
MouseInput::ButtonType::PRIMARY_BUTTON, 0, 0, aPoint, aTime,
0);
return aTarget->ReceiveInputEvent(input);
}
template <class InputReceiver>
APZEventResult MouseUp(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aPoint, TimeStamp aTime) {
MouseInput input(MouseInput::MOUSE_UP, MouseInput::ButtonType::PRIMARY_BUTTON,
0, 0, aPoint, aTime, 0);
return aTarget->ReceiveInputEvent(input);
}
template <class InputReceiver>
APZEventResult PanGesture(PanGestureInput::PanGestureType aType,
const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aPoint,
const ScreenPoint& aDelta, TimeStamp aTime,
Modifiers aModifiers = MODIFIER_NONE,
bool aSimulateMomentum = false) {
PanGestureInput input(aType, aTime, aPoint, aDelta, aModifiers);
input.mSimulateMomentum = aSimulateMomentum;
if constexpr (std::is_same_v<InputReceiver, TestAsyncPanZoomController>) {
// In the case of TestAsyncPanZoomController we know for sure that the
// event will be handled by APZ so set it explicitly.
input.mHandledByAPZ = true;
}
return aTarget->ReceiveInputEvent(input);
}
template <class InputReceiver>
APZEventResult PanGestureWithModifiers(PanGestureInput::PanGestureType aType,
Modifiers aModifiers,
const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aPoint,
const ScreenPoint& aDelta,
TimeStamp aTime) {
return PanGesture(aType, aTarget, aPoint, aDelta, aTime, aModifiers);
}
#endif // mozilla_layers_InputUtils_h
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