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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/. */
#include "APZCBasicTester.h"
#include "APZTestCommon.h"
#include "InputUtils.h"
#include "gtest/gtest.h"
class APZCPanningTester : public APZCBasicTester {
protected:
void DoPanTest(bool aShouldTriggerScroll, bool aShouldBeConsumed,
uint32_t aBehavior) {
if (aShouldTriggerScroll) {
// Three repaint request for each pan.
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(6);
} else {
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(0);
}
int touchStart = 50;
int touchEnd = 10;
ParentLayerPoint pointOut;
AsyncTransform viewTransformOut;
nsTArray<uint32_t> allowedTouchBehaviors;
allowedTouchBehaviors.AppendElement(aBehavior);
// Pan down
PanAndCheckStatus(apzc, touchStart, touchEnd, aShouldBeConsumed,
&allowedTouchBehaviors);
apzc->SampleContentTransformForFrame(&viewTransformOut, pointOut);
if (aShouldTriggerScroll) {
EXPECT_EQ(ParentLayerPoint(0, -(touchEnd - touchStart)), pointOut);
EXPECT_NE(AsyncTransform(), viewTransformOut);
} else {
EXPECT_EQ(ParentLayerPoint(), pointOut);
EXPECT_EQ(AsyncTransform(), viewTransformOut);
}
// Clear the fling from the previous pan, or stopping it will
// consume the next touchstart
apzc->CancelAnimation();
// Pan back
PanAndCheckStatus(apzc, touchEnd, touchStart, aShouldBeConsumed,
&allowedTouchBehaviors);
apzc->SampleContentTransformForFrame(&viewTransformOut, pointOut);
EXPECT_EQ(ParentLayerPoint(), pointOut);
EXPECT_EQ(AsyncTransform(), viewTransformOut);
}
void DoPanWithPreventDefaultTest() {
MakeApzcWaitForMainThread();
int touchStart = 50;
int touchEnd = 10;
ParentLayerPoint pointOut;
AsyncTransform viewTransformOut;
uint64_t blockId = 0;
// Pan down
nsTArray<uint32_t> allowedTouchBehaviors;
allowedTouchBehaviors.AppendElement(
mozilla::layers::AllowedTouchBehavior::VERTICAL_PAN);
PanAndCheckStatus(apzc, touchStart, touchEnd, true, &allowedTouchBehaviors,
&blockId);
// Send the signal that content has handled and preventDefaulted the touch
// events. This flushes the event queue.
apzc->ContentReceivedInputBlock(blockId, true);
apzc->SampleContentTransformForFrame(&viewTransformOut, pointOut);
EXPECT_EQ(ParentLayerPoint(), pointOut);
EXPECT_EQ(AsyncTransform(), viewTransformOut);
apzc->AssertStateIsReset();
}
};
// In the each of the following 4 pan tests we are performing two pan gestures:
// vertical pan from top to bottom and back - from bottom to top. According to
// the pointer-events/touch-action spec AUTO and PAN_Y touch-action values allow
// vertical scrolling while NONE and PAN_X forbid it. The first parameter of
// DoPanTest method specifies this behavior. However, the events will be marked
// as consumed even if the behavior in PAN_X, because the user could move their
// finger horizontally too - APZ has no way of knowing beforehand and so must
// consume the events.
TEST_F(APZCPanningTester, PanWithTouchActionAuto) {
// Velocity bias can cause extra repaint requests.
SCOPED_GFX_PREF_FLOAT("apz.velocity_bias", 0.0);
DoPanTest(true, true,
mozilla::layers::AllowedTouchBehavior::HORIZONTAL_PAN |
mozilla::layers::AllowedTouchBehavior::VERTICAL_PAN);
}
TEST_F(APZCPanningTester, PanWithTouchActionNone) {
// Velocity bias can cause extra repaint requests.
SCOPED_GFX_PREF_FLOAT("apz.velocity_bias", 0.0);
DoPanTest(false, false, 0);
}
TEST_F(APZCPanningTester, PanWithTouchActionPanX) {
// Velocity bias can cause extra repaint requests.
SCOPED_GFX_PREF_FLOAT("apz.velocity_bias", 0.0);
DoPanTest(false, false,
mozilla::layers::AllowedTouchBehavior::HORIZONTAL_PAN);
}
TEST_F(APZCPanningTester, PanWithTouchActionPanY) {
// Velocity bias can cause extra repaint requests.
SCOPED_GFX_PREF_FLOAT("apz.velocity_bias", 0.0);
DoPanTest(true, true, mozilla::layers::AllowedTouchBehavior::VERTICAL_PAN);
}
TEST_F(APZCPanningTester, PanWithPreventDefault) {
DoPanWithPreventDefaultTest();
}
TEST_F(APZCPanningTester, PanWithHistoricalTouchData) {
SCOPED_GFX_PREF_FLOAT("apz.fling_min_velocity_threshold", 0.0);
// Simulate the same pan gesture, in three different ways.
// We start at y=50, with a 50ms resting period at the start of the pan.
// Then we accelerate the finger upwards towards y=10, reaching a 10px/10ms
// velocity towards the end of the panning motion.
//
// The first simulation fires touch move events with 10ms gaps.
// The second simulation skips two of the touch move events, simulating
// "jank". The third simulation also skips those two events, but reports the
// missed positions in the following event's historical coordinates.
//
// Consequently, the first and third simulation should estimate the same
// velocities, whereas the second simulation should estimate a different
// velocity because it is missing data.
// First simulation: full data
APZEventResult result = TouchDown(apzc, ScreenIntPoint(0, 50), mcc->Time());
if (result.GetStatus() != nsEventStatus_eConsumeNoDefault) {
SetDefaultAllowedTouchBehavior(apzc, result.mInputBlockId);
}
mcc->AdvanceByMillis(50);
result = TouchMove(apzc, ScreenIntPoint(0, 45), mcc->Time());
mcc->AdvanceByMillis(10);
result = TouchMove(apzc, ScreenIntPoint(0, 40), mcc->Time());
mcc->AdvanceByMillis(10);
result = TouchMove(apzc, ScreenIntPoint(0, 30), mcc->Time());
mcc->AdvanceByMillis(10);
result = TouchMove(apzc, ScreenIntPoint(0, 20), mcc->Time());
result = TouchUp(apzc, ScreenIntPoint(0, 20), mcc->Time());
auto velocityFromFullDataAsSeparateEvents = apzc->GetVelocityVector();
apzc->CancelAnimation();
mcc->AdvanceByMillis(100);
// Second simulation: partial data
result = TouchDown(apzc, ScreenIntPoint(0, 50), mcc->Time());
if (result.GetStatus() != nsEventStatus_eConsumeNoDefault) {
SetDefaultAllowedTouchBehavior(apzc, result.mInputBlockId);
}
mcc->AdvanceByMillis(50);
result = TouchMove(apzc, ScreenIntPoint(0, 45), mcc->Time());
mcc->AdvanceByMillis(30);
result = TouchMove(apzc, ScreenIntPoint(0, 20), mcc->Time());
result = TouchUp(apzc, ScreenIntPoint(0, 20), mcc->Time());
auto velocityFromPartialData = apzc->GetVelocityVector();
apzc->CancelAnimation();
mcc->AdvanceByMillis(100);
// Third simulation: full data via historical data
result = TouchDown(apzc, ScreenIntPoint(0, 50), mcc->Time());
if (result.GetStatus() != nsEventStatus_eConsumeNoDefault) {
SetDefaultAllowedTouchBehavior(apzc, result.mInputBlockId);
}
mcc->AdvanceByMillis(50);
result = TouchMove(apzc, ScreenIntPoint(0, 45), mcc->Time());
mcc->AdvanceByMillis(30);
MultiTouchInput mti =
CreateMultiTouchInput(MultiTouchInput::MULTITOUCH_MOVE, mcc->Time());
auto singleTouchData = CreateSingleTouchData(0, ScreenIntPoint(0, 20));
singleTouchData.mHistoricalData.AppendElement(
SingleTouchData::HistoricalTouchData{
mcc->Time() - TimeDuration::FromMilliseconds(20),
ScreenIntPoint(0, 40),
{},
{},
0.0f,
0.0f});
singleTouchData.mHistoricalData.AppendElement(
SingleTouchData::HistoricalTouchData{
mcc->Time() - TimeDuration::FromMilliseconds(10),
ScreenIntPoint(0, 30),
{},
{},
0.0f,
0.0f});
mti.mTouches.AppendElement(singleTouchData);
result = apzc->ReceiveInputEvent(mti);
result = TouchUp(apzc, ScreenIntPoint(0, 20), mcc->Time());
auto velocityFromFullDataViaHistory = apzc->GetVelocityVector();
apzc->CancelAnimation();
EXPECT_EQ(velocityFromFullDataAsSeparateEvents,
velocityFromFullDataViaHistory);
EXPECT_NE(velocityFromPartialData, velocityFromFullDataViaHistory);
}
TEST_F(APZCPanningTester, DuplicatePanEndEvents_Bug1833950) {
// Send a pan gesture that triggers a fling animation at the end.
// Note that we need at least two _PAN events to have enough samples
// in the velocity tracker to compute a fling velocity.
PanGesture(PanGestureInput::PANGESTURE_START, apzc, ScreenIntPoint(50, 80),
ScreenPoint(0, 2), mcc->Time());
mcc->AdvanceByMillis(5);
apzc->AdvanceAnimations(mcc->GetSampleTime());
PanGesture(PanGestureInput::PANGESTURE_PAN, apzc, ScreenIntPoint(50, 80),
ScreenPoint(0, 10), mcc->Time());
mcc->AdvanceByMillis(5);
apzc->AdvanceAnimations(mcc->GetSampleTime());
PanGesture(PanGestureInput::PANGESTURE_PAN, apzc, ScreenIntPoint(50, 80),
ScreenPoint(0, 10), mcc->Time());
mcc->AdvanceByMillis(5);
apzc->AdvanceAnimations(mcc->GetSampleTime());
PanGesture(PanGestureInput::PANGESTURE_END, apzc, ScreenIntPoint(50, 80),
ScreenPoint(0, 0), mcc->Time(), MODIFIER_NONE,
/*aSimulateMomentum=*/true);
// Give the fling animation a chance to start.
SampleAnimationOnce();
apzc->AssertStateIsFling();
// Send a duplicate pan-end event.
// This test is just intended to check that doing this doesn't
// trigger an assertion failure in debug mode.
PanGesture(PanGestureInput::PANGESTURE_END, apzc, ScreenIntPoint(50, 80),
ScreenPoint(0, 0), mcc->Time(), MODIFIER_NONE,
/*aSimulateMomentum=*/true);
}
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