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Bug 1198900 - Add a gtest to ensure we don't crash when prevent-defaulting a wheel event. r=botond, a=topcrash

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This commit is contained in:
Kartikaya Gupta 2015-08-26 15:08:00 -04:00
parent bb6bda6104
commit 6d6f719328
1 changed files with 30 additions and 0 deletions
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30
gfx/tests/gtest/TestAsyncPanZoomController.cpp
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@ -1951,6 +1951,20 @@ protected:
SetScrollableFrameMetrics(root, FrameMetrics::START_SCROLL_ID, CSSRect(0, 0, 500, 500));
}
void CreateSimpleDTCScrollingLayer() {
const char* layerTreeSyntax = "t";
nsIntRegion layerVisibleRegion[] = {
nsIntRegion(IntRect(0,0,200,200)),
};
root = CreateLayerTree(layerTreeSyntax, layerVisibleRegion, nullptr, lm, layers);
SetScrollableFrameMetrics(root, FrameMetrics::START_SCROLL_ID, CSSRect(0, 0, 500, 500));
EventRegions regions;
regions.mHitRegion = nsIntRegion(IntRect(0, 0, 200, 200));
regions.mDispatchToContentHitRegion = regions.mHitRegion;
layers[0]->SetEventRegions(regions);
}
void CreateSimpleMultiLayerTree() {
const char* layerTreeSyntax = "c(tt)";
// LayerID 0 12
@ -2349,6 +2363,22 @@ TEST_F(APZCTreeManagerTester, Bug1194876) {
EXPECT_CALL(*mcc, HandleLongTap(_, _, _, _)).Times(0);
}
TEST_F(APZCTreeManagerTester, Bug1198900) {
// This is just a test that cancels a wheel event to make sure it doesn't
// crash.
CreateSimpleDTCScrollingLayer();
ScopedLayerTreeRegistration registration(0, root, mcc);
manager->UpdateHitTestingTree(nullptr, root, false, 0, 0);
ScreenPoint origin(100, 50);
ScrollWheelInput swi(MillisecondsSinceStartup(mcc->Time()), mcc->Time(), 0,
ScrollWheelInput::SCROLLMODE_INSTANT, ScrollWheelInput::SCROLLDELTA_PIXEL,
origin, 0, 10);
uint64_t blockId;
manager->ReceiveInputEvent(swi, nullptr, &blockId);
manager->ContentReceivedInputBlock(blockId, /* preventDefault= */ true);
}
TEST_F(APZHitTestingTester, ComplexMultiLayerTree) {
CreateComplexMultiLayerTree();
ScopedLayerTreeRegistration registration(0, root, mcc);