/* -*- 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/layers/ScrollableLayerGuid.h"
// Test of scenario described in bug 1269067 - that a continuing mouse drag
// doesn't interrupt a wheel scrolling animation
TEST_F(APZCTreeManagerTester, WheelInterruptedByMouseDrag) {
// Needed because the test uses SmoothWheel()
SCOPED_GFX_PREF_BOOL(
"general.smoothScroll",
true);
// Set up a scrollable layer
CreateSimpleScrollingLayer();
ScopedLayerTreeRegistration registration(LayersId{0}, mcc);
UpdateHitTestingTree();
RefPtr<TestAsyncPanZoomController> apzc = ApzcOf(root);
// First start the mouse drag
uint64_t dragBlockId =
MouseDown(apzc, ScreenIntPoint(5, 5), mcc->Time()).mInputBlockId;
uint64_t tmpBlockId =
MouseMove(apzc, ScreenIntPoint(6, 6), mcc->Time()).mInputBlockId;
EXPECT_EQ(dragBlockId, tmpBlockId);
// Insert the wheel event, check that it has a new block id
uint64_t wheelBlockId =
SmoothWheel(apzc, ScreenIntPoint(6, 6), ScreenPoint(0, 1), mcc->Time())
.mInputBlockId;
EXPECT_NE(dragBlockId, wheelBlockId);
// Continue the drag, check that the block id is the same as before
tmpBlockId = MouseMove(apzc, ScreenIntPoint(7, 5), mcc->Time()).mInputBlockId;
EXPECT_EQ(dragBlockId, tmpBlockId);
// Finish the wheel animation
apzc->AdvanceAnimationsUntilEnd();
// Check that it scrolled
ParentLayerPoint scroll = apzc->GetCurrentAsyncScrollOffset(
AsyncPanZoomController::eForEventHandling);
EXPECT_EQ(scroll.x, 0);
EXPECT_EQ(scroll.y, 10);
// We scrolled 1 "line" or 10 pixels
}
// Test of the scenario in bug 1894228, where the touchpad generates a
// mixture of wheel events with horizontal and vertical deltas, and if the
// content is only scrollable in the vertical direction, then an input
// block starting with a wheel event with a horizontal can prevent the
// entire input block from causing any scrolling.
TEST_F(APZCTreeManagerTester, HorizontalDeltaInterferesWithVerticalScrolling) {
using ViewID = ScrollableLayerGuid::ViewID;
ViewID rootScrollId = ScrollableLayerGuid::START_SCROLL_ID;
const char* treeShape =
"x";
LayerIntRect layerVisibleRect[] = {
LayerIntRect(0, 0, 100, 100),
};
CreateScrollData(treeShape, layerVisibleRect);
// Only vertically scrollable
SetScrollableFrameMetrics(layers[0], rootScrollId, CSSRect(0, 0, 100, 1000));
ScopedLayerTreeRegistration registration(LayersId{0}, mcc);
UpdateHitTestingTree();
RefPtr<TestAsyncPanZoomController> apzc = ApzcOf(root);
// Configure the APZC to wait for main-thread confirmations before
// processing events. (This is needed to trigger the buggy codepath.)
apzc->SetWaitForMainThread();
// Send a wheel event with a horizontal delta.
ScreenIntPoint cursorLocation(50, 50);
uint64_t wheelBlockId1 =
Wheel(apzc, cursorLocation, ScreenIntPoint(-10, 0), mcc->Time())
.mInputBlockId;
// Send a wheel event with a vertical delta.
uint64_t wheelBlockId2 =
Wheel(apzc, cursorLocation, ScreenIntPoint(0, 10), mcc->Time())
.mInputBlockId;
// Since the wheel block's target APZC has not been confirmed yet, the second
// event will go into the same block as the first.
EXPECT_EQ(wheelBlockId1, wheelBlockId2);
// Confirm the input block.
manager->ContentReceivedInputBlock(wheelBlockId1,
false);
manager->SetTargetAPZC(wheelBlockId1, {apzc->GetGuid()});
// We should have scrolled vertically.
EXPECT_EQ(ParentLayerPoint(0, 10),
apzc->GetCurrentAsyncScrollOffset(
AsyncPanZoomController::eForEventHandling));
}
