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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
#include "APZCTreeManagerTester.h"
#include "APZTestCommon.h"
#include "InputUtils.h"
// 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
}