Dactyloidae/gfx/layers/apz/test/gtest/InputUtils.h

297 lines
12 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 ts=8 et 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:
* nsEventStatus ReceiveInputEvent(const InputData& aEvent,
* ScrollableLayerGuid* aGuid,
* uint64_t* aOutInputBlockId);
* 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.
*/
// Some helper functions for constructing input event objects suitable to be
// passed either to an APZC (which expects an transformed point), or to an APZTM
// (which expects an untransformed point). We handle both cases by setting both
// the transformed and untransformed fields to the same value.
SingleTouchData
CreateSingleTouchData(int32_t aIdentifier, const ScreenIntPoint& aPoint)
{
SingleTouchData touch(aIdentifier, aPoint, ScreenSize(0, 0), 0, 0);
touch.mLocalScreenPoint = ParentLayerPoint(aPoint.x, aPoint.y);
return touch;
}
// Convenience wrapper for CreateSingleTouchData() that takes loose coordinates.
SingleTouchData
CreateSingleTouchData(int32_t aIdentifier, ScreenIntCoord aX, ScreenIntCoord aY)
{
return CreateSingleTouchData(aIdentifier, ScreenIntPoint(aX, aY));
}
PinchGestureInput
CreatePinchGestureInput(PinchGestureInput::PinchGestureType aType,
const ScreenIntPoint& aFocus,
float aCurrentSpan, float aPreviousSpan)
{
ParentLayerPoint localFocus(aFocus.x, aFocus.y);
PinchGestureInput result(aType, 0, TimeStamp(), localFocus,
aCurrentSpan, aPreviousSpan, 0);
result.mFocusPoint = aFocus;
return result;
}
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::DOUBLE_TAP_ZOOM);
}
aTarget->SetAllowedTouchBehavior(aInputBlockId, defaultBehaviors);
}
MultiTouchInput
CreateMultiTouchInput(MultiTouchInput::MultiTouchType aType, TimeStamp aTime)
{
return MultiTouchInput(aType, MillisecondsSinceStartup(aTime), aTime, 0);
}
template<class InputReceiver>
nsEventStatus
TouchDown(const RefPtr<InputReceiver>& aTarget, const ScreenIntPoint& aPoint,
TimeStamp aTime, uint64_t* aOutInputBlockId = nullptr)
{
MultiTouchInput mti = CreateMultiTouchInput(MultiTouchInput::MULTITOUCH_START, aTime);
mti.mTouches.AppendElement(CreateSingleTouchData(0, aPoint));
return aTarget->ReceiveInputEvent(mti, nullptr, aOutInputBlockId);
}
template<class InputReceiver>
nsEventStatus
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, nullptr, nullptr);
}
template<class InputReceiver>
nsEventStatus
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, nullptr, nullptr);
}
template<class InputReceiver>
void
PinchWithPinchInput(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aFocus,
const ScreenIntPoint& aSecondFocus, float aScale,
nsEventStatus (*aOutEventStatuses)[3] = nullptr)
{
nsEventStatus actualStatus = aTarget->ReceiveInputEvent(
CreatePinchGestureInput(PinchGestureInput::PINCHGESTURE_START,
aFocus, 10.0, 10.0),
nullptr);
if (aOutEventStatuses) {
(*aOutEventStatuses)[0] = actualStatus;
}
actualStatus = aTarget->ReceiveInputEvent(
CreatePinchGestureInput(PinchGestureInput::PINCHGESTURE_SCALE,
aSecondFocus, 10.0 * aScale, 10.0),
nullptr);
if (aOutEventStatuses) {
(*aOutEventStatuses)[1] = actualStatus;
}
actualStatus = aTarget->ReceiveInputEvent(
CreatePinchGestureInput(PinchGestureInput::PINCHGESTURE_END,
// note: negative values here tell APZC
// not to turn the pinch into a pan
aFocus, -1.0, -1.0),
nullptr);
if (aOutEventStatuses) {
(*aOutEventStatuses)[2] = actualStatus;
}
}
template<class InputReceiver>
void
PinchWithPinchInputAndCheckStatus(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aFocus, float aScale,
bool aShouldTriggerPinch)
{
nsEventStatus statuses[3]; // scalebegin, scale, scaleend
PinchWithPinchInput(aTarget, aFocus, aFocus, aScale, &statuses);
nsEventStatus expectedStatus = aShouldTriggerPinch
? nsEventStatus_eConsumeNoDefault
: nsEventStatus_eIgnore;
EXPECT_EQ(expectedStatus, statuses[0]);
EXPECT_EQ(expectedStatus, statuses[1]);
}
template<class InputReceiver>
void
PinchWithTouchInput(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aFocus, float aScale,
int& inputId,
nsTArray<uint32_t>* aAllowedTouchBehaviors = nullptr,
nsEventStatus (*aOutEventStatuses)[4] = nullptr,
uint64_t* aOutInputBlockId = nullptr)
{
// Having pinch coordinates in float type may cause problems with high-precision scale values
// since SingleTouchData accepts integer value. But for trivial tests it should be ok.
float pinchLength = 100.0;
float pinchLengthScaled = pinchLength * aScale;
// Even if the caller doesn't care about the block id, we need it to set the
// allowed touch behaviour below, so make sure aOutInputBlockId is non-null.
uint64_t blockId;
if (!aOutInputBlockId) {
aOutInputBlockId = &blockId;
}
MultiTouchInput mtiStart = MultiTouchInput(MultiTouchInput::MULTITOUCH_START, 0, TimeStamp(), 0);
mtiStart.mTouches.AppendElement(CreateSingleTouchData(inputId, aFocus));
mtiStart.mTouches.AppendElement(CreateSingleTouchData(inputId + 1, aFocus));
nsEventStatus status = aTarget->ReceiveInputEvent(mtiStart, aOutInputBlockId);
if (aOutEventStatuses) {
(*aOutEventStatuses)[0] = status;
}
if (aAllowedTouchBehaviors) {
EXPECT_EQ(2UL, aAllowedTouchBehaviors->Length());
aTarget->SetAllowedTouchBehavior(*aOutInputBlockId, *aAllowedTouchBehaviors);
} else if (gfxPrefs::TouchActionEnabled()) {
SetDefaultAllowedTouchBehavior(aTarget, *aOutInputBlockId, 2);
}
MultiTouchInput mtiMove1 = MultiTouchInput(MultiTouchInput::MULTITOUCH_MOVE, 0, TimeStamp(), 0);
mtiMove1.mTouches.AppendElement(CreateSingleTouchData(inputId, aFocus.x - pinchLength, aFocus.y));
mtiMove1.mTouches.AppendElement(CreateSingleTouchData(inputId + 1, aFocus.x + pinchLength, aFocus.y));
status = aTarget->ReceiveInputEvent(mtiMove1, nullptr);
if (aOutEventStatuses) {
(*aOutEventStatuses)[1] = status;
}
MultiTouchInput mtiMove2 = MultiTouchInput(MultiTouchInput::MULTITOUCH_MOVE, 0, TimeStamp(), 0);
mtiMove2.mTouches.AppendElement(CreateSingleTouchData(inputId, aFocus.x - pinchLengthScaled, aFocus.y));
mtiMove2.mTouches.AppendElement(CreateSingleTouchData(inputId + 1, aFocus.x + pinchLengthScaled, aFocus.y));
status = aTarget->ReceiveInputEvent(mtiMove2, nullptr);
if (aOutEventStatuses) {
(*aOutEventStatuses)[2] = status;
}
MultiTouchInput mtiEnd = MultiTouchInput(MultiTouchInput::MULTITOUCH_END, 0, TimeStamp(), 0);
mtiEnd.mTouches.AppendElement(CreateSingleTouchData(inputId, aFocus.x - pinchLengthScaled, aFocus.y));
mtiEnd.mTouches.AppendElement(CreateSingleTouchData(inputId + 1, aFocus.x + pinchLengthScaled, aFocus.y));
status = aTarget->ReceiveInputEvent(mtiEnd, nullptr);
if (aOutEventStatuses) {
(*aOutEventStatuses)[3] = status;
}
inputId += 2;
}
template<class InputReceiver>
void
PinchWithTouchInputAndCheckStatus(const RefPtr<InputReceiver>& aTarget,
const ScreenIntPoint& aFocus, float aScale,
int& inputId, bool aShouldTriggerPinch,
nsTArray<uint32_t>* aAllowedTouchBehaviors)
{
nsEventStatus statuses[4]; // down, move, move, up
PinchWithTouchInput(aTarget, aFocus, aScale, inputId, aAllowedTouchBehaviors, &statuses);
nsEventStatus expectedMoveStatus = aShouldTriggerPinch
? nsEventStatus_eConsumeDoDefault
: nsEventStatus_eIgnore;
EXPECT_EQ(nsEventStatus_eConsumeDoDefault, statuses[0]);
EXPECT_EQ(expectedMoveStatus, statuses[1]);
EXPECT_EQ(expectedMoveStatus, statuses[2]);
}
template<class InputReceiver>
nsEventStatus
Wheel(const RefPtr<InputReceiver>& aTarget, const ScreenIntPoint& aPoint,
const ScreenPoint& aDelta, TimeStamp aTime, uint64_t* aOutInputBlockId = nullptr)
{
ScrollWheelInput input(MillisecondsSinceStartup(aTime), aTime, 0,
ScrollWheelInput::SCROLLMODE_INSTANT, ScrollWheelInput::SCROLLDELTA_PIXEL,
aPoint, aDelta.x, aDelta.y, false);
return aTarget->ReceiveInputEvent(input, nullptr, aOutInputBlockId);
}
template<class InputReceiver>
nsEventStatus
SmoothWheel(const RefPtr<InputReceiver>& aTarget, const ScreenIntPoint& aPoint,
const ScreenPoint& aDelta, TimeStamp aTime, uint64_t* aOutInputBlockId = nullptr)
{
ScrollWheelInput input(MillisecondsSinceStartup(aTime), aTime, 0,
ScrollWheelInput::SCROLLMODE_SMOOTH, ScrollWheelInput::SCROLLDELTA_LINE,
aPoint, aDelta.x, aDelta.y, false);
return aTarget->ReceiveInputEvent(input, nullptr, aOutInputBlockId);
}
template<class InputReceiver>
nsEventStatus
MouseDown(const RefPtr<InputReceiver>& aTarget, const ScreenIntPoint& aPoint,
TimeStamp aTime, uint64_t* aOutInputBlockId = nullptr)
{
MouseInput input(MouseInput::MOUSE_DOWN, MouseInput::ButtonType::LEFT_BUTTON,
0, 0, aPoint, MillisecondsSinceStartup(aTime), aTime, 0);
return aTarget->ReceiveInputEvent(input, nullptr, aOutInputBlockId);
}
template<class InputReceiver>
nsEventStatus
MouseMove(const RefPtr<InputReceiver>& aTarget, const ScreenIntPoint& aPoint,
TimeStamp aTime, uint64_t* aOutInputBlockId = nullptr)
{
MouseInput input(MouseInput::MOUSE_MOVE, MouseInput::ButtonType::LEFT_BUTTON,
0, 0, aPoint, MillisecondsSinceStartup(aTime), aTime, 0);
return aTarget->ReceiveInputEvent(input, nullptr, aOutInputBlockId);
}
template<class InputReceiver>
nsEventStatus
MouseUp(const RefPtr<InputReceiver>& aTarget, const ScreenIntPoint& aPoint,
TimeStamp aTime, uint64_t* aOutInputBlockId = nullptr)
{
MouseInput input(MouseInput::MOUSE_UP, MouseInput::ButtonType::LEFT_BUTTON,
0, 0, aPoint, MillisecondsSinceStartup(aTime), aTime, 0);
return aTarget->ReceiveInputEvent(input, nullptr, aOutInputBlockId);
}
#endif // mozilla_layers_InputUtils_h