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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 "APZCTreeManagerTester.h"
#include "APZTestCommon.h"
#include "InputUtils.h"
#include "mozilla/StaticPrefs_layout.h"
class APZCSnappingOnMomentumTester : public APZCTreeManagerTester {};
TEST_F(APZCSnappingOnMomentumTester, Snap_On_Momentum) {
SCOPED_GFX_VAR(UseWebRender, bool, false);
const char* layerTreeSyntax = "c";
nsIntRegion layerVisibleRegion[] = {
nsIntRegion(IntRect(0, 0, 100, 100)),
};
root =
CreateLayerTree(layerTreeSyntax, layerVisibleRegion, nullptr, lm, layers);
SetScrollableFrameMetrics(root, ScrollableLayerGuid::START_SCROLL_ID,
CSSRect(0, 0, 100, 500));
// Set up some basic scroll snapping
ScrollSnapInfo snap;
snap.mScrollSnapStrictnessY = StyleScrollSnapStrictness::Mandatory;
snap.mSnapPositionY.AppendElement(0 * AppUnitsPerCSSPixel());
snap.mSnapPositionY.AppendElement(100 * AppUnitsPerCSSPixel());
ScrollMetadata metadata = root->GetScrollMetadata(0);
metadata.SetSnapInfo(ScrollSnapInfo(snap));
root->SetScrollMetadata(metadata);
UniquePtr<ScopedLayerTreeRegistration> registration =
MakeUnique<ScopedLayerTreeRegistration>(manager, LayersId{0}, root, mcc);
UpdateHitTestingTree();
RefPtr<TestAsyncPanZoomController> apzc = ApzcOf(root);
TimeStamp now = mcc->Time();
PanGesture(PanGestureInput::PANGESTURE_START, manager, ScreenIntPoint(50, 80),
ScreenPoint(0, 2), now);
mcc->AdvanceByMillis(5);
apzc->AdvanceAnimations(mcc->GetSampleTime());
PanGesture(PanGestureInput::PANGESTURE_PAN, manager, ScreenIntPoint(50, 80),
ScreenPoint(0, 25), mcc->Time());
mcc->AdvanceByMillis(5);
apzc->AdvanceAnimations(mcc->GetSampleTime());
PanGesture(PanGestureInput::PANGESTURE_PAN, manager, ScreenIntPoint(50, 80),
ScreenPoint(0, 25), mcc->Time());
// The velocity should be positive when panning with positive displacement.
EXPECT_GT(apzc->GetVelocityVector().y, 3.0);
mcc->AdvanceByMillis(5);
apzc->AdvanceAnimations(mcc->GetSampleTime());
PanGesture(PanGestureInput::PANGESTURE_END, manager, ScreenIntPoint(50, 80),
ScreenPoint(0, 0), mcc->Time());
// After lifting the fingers, the velocity should still be positive.
EXPECT_GT(apzc->GetVelocityVector().y, 3.0);
mcc->AdvanceByMillis(5);
apzc->AdvanceAnimations(mcc->GetSampleTime());
PanGesture(PanGestureInput::PANGESTURE_MOMENTUMSTART, manager,
ScreenIntPoint(50, 80), ScreenPoint(0, 200), mcc->Time());
mcc->AdvanceByMillis(10);
apzc->AdvanceAnimations(mcc->GetSampleTime());
PanGesture(PanGestureInput::PANGESTURE_MOMENTUMPAN, manager,
ScreenIntPoint(50, 80), ScreenPoint(0, 50), mcc->Time());
mcc->AdvanceByMillis(10);
apzc->AdvanceAnimations(mcc->GetSampleTime());
PanGesture(PanGestureInput::PANGESTURE_MOMENTUMEND, manager,
ScreenIntPoint(50, 80), ScreenPoint(0, 0), mcc->Time());
apzc->AdvanceAnimationsUntilEnd();
EXPECT_EQ(
100.0f,
apzc->GetCurrentAsyncScrollOffset(
AsyncPanZoomController::AsyncTransformConsumer::eForHitTesting)
.y);
}
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