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Diffstat (limited to '')
| -rw-r--r-- | gfx/layers/apz/test/gtest/TestSnapping.cpp | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/gtest/TestSnapping.cpp b/gfx/layers/apz/test/gtest/TestSnapping.cpp new file mode 100644 index 0000000000..13bb1e5591 --- /dev/null +++ b/gfx/layers/apz/test/gtest/TestSnapping.cpp @@ -0,0 +1,305 @@ +/* -*- 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" +#include "mozilla/StaticPrefs_mousewheel.h" + +class APZCSnappingTesterMock : public APZCTreeManagerTester { + public: + APZCSnappingTesterMock() { CreateMockHitTester(); } +}; + +TEST_F(APZCSnappingTesterMock, Bug1265510) { + const char* treeShape = "x(x)"; + LayerIntRegion layerVisibleRegion[] = {LayerIntRect(0, 0, 100, 100), + LayerIntRect(0, 100, 100, 100)}; + CreateScrollData(treeShape, layerVisibleRegion); + SetScrollableFrameMetrics(root, ScrollableLayerGuid::START_SCROLL_ID, + CSSRect(0, 0, 100, 200)); + SetScrollableFrameMetrics(layers[1], ScrollableLayerGuid::START_SCROLL_ID + 1, + CSSRect(0, 0, 100, 200)); + SetScrollHandoff(layers[1], root); + + ScrollSnapInfo snap; + snap.mScrollSnapStrictnessY = StyleScrollSnapStrictness::Mandatory; + snap.mSnapportSize = CSSSize::ToAppUnits( + layerVisibleRegion[0].GetBounds().Size() * LayerToCSSScale(1.0)); + + snap.mSnapTargets.AppendElement(ScrollSnapInfo::SnapTarget( + Nothing(), Some(0 * AppUnitsPerCSSPixel()), + CSSRect::ToAppUnits(CSSRect(0, 0, 10, 10)), StyleScrollSnapStop::Normal, + ScrollSnapTargetId{1})); + snap.mSnapTargets.AppendElement(ScrollSnapInfo::SnapTarget( + Nothing(), Some(100 * AppUnitsPerCSSPixel()), + CSSRect::ToAppUnits(CSSRect(0, 100, 10, 10)), StyleScrollSnapStop::Normal, + ScrollSnapTargetId{2})); + + ModifyFrameMetrics(root, [&](ScrollMetadata& aSm, FrameMetrics&) { + aSm.SetSnapInfo(ScrollSnapInfo(snap)); + }); + + UniquePtr<ScopedLayerTreeRegistration> registration = + MakeUnique<ScopedLayerTreeRegistration>(LayersId{0}, mcc); + UpdateHitTestingTree(); + + TestAsyncPanZoomController* outer = ApzcOf(layers[0]); + TestAsyncPanZoomController* inner = ApzcOf(layers[1]); + + // Position the mouse near the bottom of the outer frame and scroll by 60px. + // (6 lines of 10px each). APZC will actually scroll to y=100 because of the + // mandatory snap coordinate there. + TimeStamp now = mcc->Time(); + QueueMockHitResult(ScrollableLayerGuid::START_SCROLL_ID); + SmoothWheel(manager, ScreenIntPoint(50, 80), ScreenPoint(0, 6), now); + // Advance in 5ms increments until we've scrolled by 70px. At this point, the + // closest snap point is y=100, and the inner frame should be under the mouse + // cursor. + while (outer + ->GetCurrentAsyncScrollOffset( + AsyncPanZoomController::AsyncTransformConsumer::eForHitTesting) + .y < 70) { + mcc->AdvanceByMillis(5); + outer->AdvanceAnimations(mcc->GetSampleTime()); + } + // Now do another wheel in a new transaction. This should start scrolling the + // inner frame; we verify that it does by checking the inner scroll position. + TimeStamp newTransactionTime = + now + TimeDuration::FromMilliseconds( + StaticPrefs::mousewheel_transaction_timeout() + 100); + QueueMockHitResult(ScrollableLayerGuid::START_SCROLL_ID + 1); + SmoothWheel(manager, ScreenIntPoint(50, 80), ScreenPoint(0, 6), + newTransactionTime); + inner->AdvanceAnimationsUntilEnd(); + EXPECT_LT( + 0.0f, + inner + ->GetCurrentAsyncScrollOffset( + AsyncPanZoomController::AsyncTransformConsumer::eForHitTesting) + .y); + + // However, the outer frame should also continue to the snap point, otherwise + // it is demonstrating incorrect behaviour by violating the mandatory + // snapping. + outer->AdvanceAnimationsUntilEnd(); + EXPECT_EQ( + 100.0f, + outer + ->GetCurrentAsyncScrollOffset( + AsyncPanZoomController::AsyncTransformConsumer::eForHitTesting) + .y); +} + +TEST_F(APZCSnappingTesterMock, Snap_After_Pinch) { + const char* treeShape = "x"; + LayerIntRegion layerVisibleRegion[] = { + LayerIntRect(0, 0, 100, 100), + }; + CreateScrollData(treeShape, layerVisibleRegion); + SetScrollableFrameMetrics(root, ScrollableLayerGuid::START_SCROLL_ID, + CSSRect(0, 0, 100, 200)); + + // Set up some basic scroll snapping + ScrollSnapInfo snap; + snap.mScrollSnapStrictnessY = StyleScrollSnapStrictness::Mandatory; + snap.mSnapportSize = CSSSize::ToAppUnits( + layerVisibleRegion[0].GetBounds().Size() * LayerToCSSScale(1.0)); + + snap.mSnapTargets.AppendElement(ScrollSnapInfo::SnapTarget( + Nothing(), Some(0 * AppUnitsPerCSSPixel()), + CSSRect::ToAppUnits(CSSRect(0, 0, 10, 10)), StyleScrollSnapStop::Normal, + ScrollSnapTargetId{1})); + snap.mSnapTargets.AppendElement(ScrollSnapInfo::SnapTarget( + Nothing(), Some(100 * AppUnitsPerCSSPixel()), + CSSRect::ToAppUnits(CSSRect(0, 100, 10, 10)), StyleScrollSnapStop::Normal, + ScrollSnapTargetId{2})); + + // Save the scroll snap info on the root APZC. + // Also mark the root APZC as "root content", since APZC only allows + // zooming on the root content APZC. + ModifyFrameMetrics(root, [&](ScrollMetadata& aSm, FrameMetrics& aMetrics) { + aSm.SetSnapInfo(ScrollSnapInfo(snap)); + aMetrics.SetIsRootContent(true); + }); + + UniquePtr<ScopedLayerTreeRegistration> registration = + MakeUnique<ScopedLayerTreeRegistration>(LayersId{0}, mcc); + UpdateHitTestingTree(); + + RefPtr<TestAsyncPanZoomController> apzc = ApzcOf(root); + + // Allow zooming + apzc->UpdateZoomConstraints(ZoomConstraints( + true, true, CSSToParentLayerScale(0.25f), CSSToParentLayerScale(4.0f))); + + PinchWithPinchInput(apzc, ScreenIntPoint(50, 50), ScreenIntPoint(50, 50), + 1.2f); + + apzc->AssertStateIsSmoothMsdScroll(); +} + +// Currently fails on Android because on the platform we have a different +// VelocityTracker. +#ifndef MOZ_WIDGET_ANDROID +TEST_F(APZCSnappingTesterMock, SnapOnPanEndWithZeroVelocity) { + // Use pref values for desktop everywhere. + SCOPED_GFX_PREF_FLOAT("apz.fling_friction", 0.002); + SCOPED_GFX_PREF_FLOAT("apz.fling_stopped_threshold", 0.01); + SCOPED_GFX_PREF_FLOAT("apz.fling_curve_function_x1", 0.0); + SCOPED_GFX_PREF_FLOAT("apz.fling_curve_function_x2", 1.0); + SCOPED_GFX_PREF_FLOAT("apz.fling_curve_function_y1", 0.0); + SCOPED_GFX_PREF_FLOAT("apz.fling_curve_function_y2", 1.0); + SCOPED_GFX_PREF_INT("apz.velocity_relevance_time_ms", 100); + + const char* treeShape = "x"; + LayerIntRegion layerVisibleRegion[] = { + LayerIntRect(0, 0, 100, 100), + }; + CreateScrollData(treeShape, layerVisibleRegion); + SetScrollableFrameMetrics(root, ScrollableLayerGuid::START_SCROLL_ID, + CSSRect(0, 0, 100, 400)); + + // Set up two snap points, 30 and 100. + ScrollSnapInfo snap; + snap.mScrollSnapStrictnessY = StyleScrollSnapStrictness::Mandatory; + snap.mSnapportSize = CSSSize::ToAppUnits( + layerVisibleRegion[0].GetBounds().Size() * LayerToCSSScale(1.0)); + snap.mSnapTargets.AppendElement(ScrollSnapInfo::SnapTarget( + Nothing(), Some(30 * AppUnitsPerCSSPixel()), + CSSRect::ToAppUnits(CSSRect(0, 30, 10, 10)), StyleScrollSnapStop::Normal, + ScrollSnapTargetId{1})); + snap.mSnapTargets.AppendElement(ScrollSnapInfo::SnapTarget( + Nothing(), Some(100 * AppUnitsPerCSSPixel()), + CSSRect::ToAppUnits(CSSRect(0, 100, 10, 10)), StyleScrollSnapStop::Normal, + ScrollSnapTargetId{2})); + + // Save the scroll snap info on the root APZC. + ModifyFrameMetrics(root, [&](ScrollMetadata& aSm, FrameMetrics& aMetrics) { + aSm.SetSnapInfo(ScrollSnapInfo(snap)); + }); + + UniquePtr<ScopedLayerTreeRegistration> registration = + MakeUnique<ScopedLayerTreeRegistration>(LayersId{0}, mcc); + UpdateHitTestingTree(); + + RefPtr<TestAsyncPanZoomController> apzc = ApzcOf(root); + + // Send a series of pan gestures to scroll to position at 50. + const ScreenIntPoint position = ScreenIntPoint(50, 30); + QueueMockHitResult(ScrollableLayerGuid::START_SCROLL_ID); + PanGesture(PanGestureInput::PANGESTURE_START, manager, position, + ScreenPoint(0, 10), mcc->Time()); + mcc->AdvanceByMillis(5); + apzc->AdvanceAnimations(mcc->GetSampleTime()); + QueueMockHitResult(ScrollableLayerGuid::START_SCROLL_ID); + PanGesture(PanGestureInput::PANGESTURE_PAN, manager, position, + ScreenPoint(0, 40), mcc->Time()); + mcc->AdvanceByMillis(5); + apzc->AdvanceAnimations(mcc->GetSampleTime()); + + // Make sure the velocity just before sending a pan-end is zero. + EXPECT_EQ(apzc->GetVelocityVector().y, 0); + + QueueMockHitResult(ScrollableLayerGuid::START_SCROLL_ID); + PanGesture(PanGestureInput::PANGESTURE_END, manager, position, + ScreenPoint(0, 0), mcc->Time()); + + // Now a smooth animation has been triggered for snapping to 30. + apzc->AssertStateIsSmoothMsdScroll(); + + apzc->AdvanceAnimationsUntilEnd(); + // The snapped position should be 30 rather than 100 because it's the nearest + // snap point. + EXPECT_EQ( + apzc->GetCurrentAsyncScrollOffset(AsyncPanZoomController::eForHitTesting) + .y, + 30); +} + +// Smililar to above SnapOnPanEndWithZeroVelocity but with positive velocity so +// that the snap position would be the one in the scrolling direction. +TEST_F(APZCSnappingTesterMock, SnapOnPanEndWithPositiveVelocity) { + // Use pref values for desktop everywhere. + SCOPED_GFX_PREF_FLOAT("apz.fling_friction", 0.002); + SCOPED_GFX_PREF_FLOAT("apz.fling_stopped_threshold", 0.01); + SCOPED_GFX_PREF_FLOAT("apz.fling_curve_function_x1", 0.0); + SCOPED_GFX_PREF_FLOAT("apz.fling_curve_function_x2", 1.0); + SCOPED_GFX_PREF_FLOAT("apz.fling_curve_function_y1", 0.0); + SCOPED_GFX_PREF_FLOAT("apz.fling_curve_function_y2", 1.0); + SCOPED_GFX_PREF_INT("apz.velocity_relevance_time_ms", 100); + + const char* treeShape = "x"; + LayerIntRegion layerVisibleRegion[] = { + LayerIntRect(0, 0, 100, 100), + }; + CreateScrollData(treeShape, layerVisibleRegion); + SetScrollableFrameMetrics(root, ScrollableLayerGuid::START_SCROLL_ID, + CSSRect(0, 0, 100, 400)); + + // Set up two snap points, 30 and 100. + ScrollSnapInfo snap; + snap.mScrollSnapStrictnessY = StyleScrollSnapStrictness::Mandatory; + snap.mSnapportSize = CSSSize::ToAppUnits( + layerVisibleRegion[0].GetBounds().Size() * LayerToCSSScale(1.0)); + snap.mSnapTargets.AppendElement(ScrollSnapInfo::SnapTarget( + Nothing(), Some(30 * AppUnitsPerCSSPixel()), + CSSRect::ToAppUnits(CSSRect(0, 30, 10, 10)), StyleScrollSnapStop::Normal, + ScrollSnapTargetId{1})); + snap.mSnapTargets.AppendElement(ScrollSnapInfo::SnapTarget( + Nothing(), Some(100 * AppUnitsPerCSSPixel()), + CSSRect::ToAppUnits(CSSRect(0, 100, 10, 10)), StyleScrollSnapStop::Normal, + ScrollSnapTargetId{2})); + + // Save the scroll snap info on the root APZC. + ModifyFrameMetrics(root, [&](ScrollMetadata& aSm, FrameMetrics& aMetrics) { + aSm.SetSnapInfo(ScrollSnapInfo(snap)); + }); + + UniquePtr<ScopedLayerTreeRegistration> registration = + MakeUnique<ScopedLayerTreeRegistration>(LayersId{0}, mcc); + UpdateHitTestingTree(); + + RefPtr<TestAsyncPanZoomController> apzc = ApzcOf(root); + + // Send a series of pan gestures that a pan-end event happens at 65 + const ScreenIntPoint position = ScreenIntPoint(50, 30); + QueueMockHitResult(ScrollableLayerGuid::START_SCROLL_ID); + PanGesture(PanGestureInput::PANGESTURE_START, manager, position, + ScreenPoint(0, 10), mcc->Time()); + mcc->AdvanceByMillis(5); + apzc->AdvanceAnimations(mcc->GetSampleTime()); + QueueMockHitResult(ScrollableLayerGuid::START_SCROLL_ID); + PanGesture(PanGestureInput::PANGESTURE_PAN, manager, position, + ScreenPoint(0, 35), mcc->Time()); + mcc->AdvanceByMillis(5); + apzc->AdvanceAnimations(mcc->GetSampleTime()); + QueueMockHitResult(ScrollableLayerGuid::START_SCROLL_ID); + PanGesture(PanGestureInput::PANGESTURE_PAN, manager, position, + ScreenPoint(0, 20), mcc->Time()); + mcc->AdvanceByMillis(5); + apzc->AdvanceAnimations(mcc->GetSampleTime()); + + // There should be positive velocity in this case. + EXPECT_GT(apzc->GetVelocityVector().y, 0); + + QueueMockHitResult(ScrollableLayerGuid::START_SCROLL_ID); + PanGesture(PanGestureInput::PANGESTURE_END, manager, position, + ScreenPoint(0, 0), mcc->Time()); + mcc->AdvanceByMillis(5); + + // A smooth animation has been triggered by the pan-end event above. + apzc->AssertStateIsSmoothMsdScroll(); + + apzc->AdvanceAnimationsUntilEnd(); + EXPECT_EQ( + apzc->GetCurrentAsyncScrollOffset(AsyncPanZoomController::eForHitTesting) + .y, + 100); +} +#endif |