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Bug 1109873 - Gtest that demonstrates the problem with obscured regions and transforms. r=kats

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This commit is contained in:
Botond Ballo 2015-01-08 09:40:01 -05:00
parent 65940e937f
commit 39ad7fb7ba
1 changed files with 54 additions and 0 deletions
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54
gfx/tests/gtest/TestAsyncPanZoomController.cpp
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@ -2517,6 +2517,40 @@ protected:
manager->UpdateHitTestingTree(nullptr, root, false, 0, 0);
rootApzc = ApzcOf(root);
}
void CreateObscuringLayerTree() {
const char* layerTreeSyntax = "c(c(t)t)";
// LayerID 0 1 2 3
// 0 is the root.
// 1 is a parent scrollable layer.
// 2 is a child scrollable layer.
// 3 is the Obscurer, who ruins everything.
nsIntRegion layerVisibleRegions[] = {
// x coordinates are uninteresting
nsIntRegion(nsIntRect(0, 0, 200, 200)), // [0, 200]
nsIntRegion(nsIntRect(0, 0, 200, 200)), // [0, 200]
nsIntRegion(nsIntRect(0, 100, 200, 50)), // [100, 150]
nsIntRegion(nsIntRect(0, 100, 200, 100)) // [100, 200]
};
root = CreateLayerTree(layerTreeSyntax, layerVisibleRegions, nullptr, lm, layers);
SetScrollableFrameMetrics(root, FrameMetrics::START_SCROLL_ID, CSSRect(0, 0, 200, 200));
SetScrollableFrameMetrics(layers[1], FrameMetrics::START_SCROLL_ID + 1, CSSRect(0, 0, 200, 300));
SetScrollableFrameMetrics(layers[2], FrameMetrics::START_SCROLL_ID + 2, CSSRect(0, 0, 200, 100));
SetScrollHandoff(layers[2], layers[1]);
SetScrollHandoff(layers[1], root);
EventRegions regions(nsIntRegion(nsIntRect(0, 0, 200, 200)));
root->SetEventRegions(regions);
regions.mHitRegion = nsIntRegion(nsIntRect(0, 0, 200, 300));
layers[1]->SetEventRegions(regions);
regions.mHitRegion = nsIntRegion(nsIntRect(0, 100, 200, 100));
layers[2]->SetEventRegions(regions);
registration = MakeUnique<ScopedLayerTreeRegistration>(0, root, mcc);
manager->UpdateHitTestingTree(nullptr, root, false, 0, 0);
rootApzc = ApzcOf(root);
}
};
TEST_F(APZEventRegionsTester, HitRegionImmediateResponse) {
@ -2589,6 +2623,26 @@ TEST_F(APZEventRegionsTester, HitRegionAccumulatesChildren) {
mcc->RunThroughDelayedTasks(); // this runs the tap event
}
TEST_F(APZEventRegionsTester, Obscuration) {
SCOPED_GFX_PREF(LayoutEventRegionsEnabled, bool, true);
CreateObscuringLayerTree();
ScopedLayerTreeRegistration registration(0, root, mcc);
manager->UpdateHitTestingTree(nullptr, root, false, 0, 0);
TestAsyncPanZoomController* parent = ApzcOf(layers[1]);
TestAsyncPanZoomController* child = ApzcOf(layers[2]);
int time = 0;
ApzcPanNoFling(parent, time, 75, 25);
HitTestResult result;
nsRefPtr<AsyncPanZoomController> hit = manager->GetTargetAPZC(ScreenPoint(50, 75), &result);
EXPECT_EQ(child, hit.get());
EXPECT_EQ(HitTestResult::ApzcHitRegion, result);
}
class TaskRunMetrics {
public:
TaskRunMetrics()