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Bug 1257288 - Improve the APZ gtest infrastructure to make writing multi-FrameMetrics tests easier. r=kats

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MozReview-Commit-ID: L9QN0FhLwRU

--HG--
extra : rebase_source : 8b5a5fca7f26c78b53280647a88de285a2208fd8
This commit is contained in:
Botond Ballo 2016-04-20 18:37:45 -04:00
parent a278e42605
commit ff18651ad3
1 changed files with 34 additions and 10 deletions
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44
gfx/layers/apz/test/gtest/APZCTreeManagerTester.h
View File

@ -57,8 +57,10 @@ protected:
RefPtr<TestAPZCTreeManager> manager;
protected:
static void SetScrollableFrameMetrics(Layer* aLayer, FrameMetrics::ViewID aScrollId,
CSSRect aScrollableRect = CSSRect(-1, -1, -1, -1)) {
static ScrollMetadata BuildScrollMetadata(FrameMetrics::ViewID aScrollId,
const CSSRect& aScrollableRect,
const ParentLayerRect& aCompositionBounds)
{
ScrollMetadata metadata;
FrameMetrics& metrics = metadata.GetMetrics();
metrics.SetScrollId(aScrollId);
@ -66,26 +68,43 @@ protected:
if (aScrollId == FrameMetrics::START_SCROLL_ID) {
metrics.SetIsLayersIdRoot(true);
}
IntRect layerBound = aLayer->GetVisibleRegion().ToUnknownRegion().GetBounds();
metrics.SetCompositionBounds(ParentLayerRect(layerBound.x, layerBound.y,
layerBound.width, layerBound.height));
metrics.SetCompositionBounds(aCompositionBounds);
metrics.SetScrollableRect(aScrollableRect);
metrics.SetScrollOffset(CSSPoint(0, 0));
metrics.SetPageScrollAmount(LayoutDeviceIntSize(50, 100));
metrics.SetAllowVerticalScrollWithWheel(true);
aLayer->SetScrollMetadata(metadata);
aLayer->SetClipRect(Some(ViewAs<ParentLayerPixel>(layerBound)));
if (!aScrollableRect.IsEqualEdges(CSSRect(-1, -1, -1, -1))) {
return metadata;
}
static void SetEventRegionsBasedOnBottommostMetrics(Layer* aLayer)
{
const FrameMetrics& metrics = aLayer->GetScrollMetadata(0).GetMetrics();
CSSRect scrollableRect = metrics.GetScrollableRect();
if (!scrollableRect.IsEqualEdges(CSSRect(-1, -1, -1, -1))) {
// The purpose of this is to roughly mimic what layout would do in the
// case of a scrollable frame with the event regions and clip. This lets
// us exercise the hit-testing code in APZCTreeManager
EventRegions er = aLayer->GetEventRegions();
IntRect scrollRect = RoundedToInt(aScrollableRect * metrics.LayersPixelsPerCSSPixel()).ToUnknownRect();
er.mHitRegion = nsIntRegion(IntRect(layerBound.TopLeft(), scrollRect.Size()));
IntRect scrollRect = RoundedToInt(
scrollableRect * metrics.LayersPixelsPerCSSPixel()).ToUnknownRect();
er.mHitRegion = nsIntRegion(IntRect(
RoundedToInt(metrics.GetCompositionBounds().TopLeft().ToUnknownPoint()),
scrollRect.Size()));
aLayer->SetEventRegions(er);
}
}
static void SetScrollableFrameMetrics(Layer* aLayer, FrameMetrics::ViewID aScrollId,
CSSRect aScrollableRect = CSSRect(-1, -1, -1, -1)) {
ParentLayerIntRect compositionBounds = ViewAs<ParentLayerPixel>(
aLayer->GetVisibleRegion().ToUnknownRegion().GetBounds());
ScrollMetadata metadata = BuildScrollMetadata(aScrollId, aScrollableRect,
ParentLayerRect(compositionBounds));
aLayer->SetScrollMetadata(metadata);
aLayer->SetClipRect(Some(compositionBounds));
SetEventRegionsBasedOnBottommostMetrics(aLayer);
}
void SetScrollHandoff(Layer* aChild, Layer* aParent) {
ScrollMetadata metadata = aChild->GetScrollMetadata(0);
metadata.GetMetrics().SetScrollParentId(aParent->GetFrameMetrics(0).GetScrollId());
@ -97,6 +116,11 @@ protected:
return (TestAsyncPanZoomController*)aLayer->GetAsyncPanZoomController(0);
}
static TestAsyncPanZoomController* ApzcOf(Layer* aLayer, uint32_t aIndex) {
EXPECT_LT(aIndex, aLayer->GetScrollMetadataCount());
return (TestAsyncPanZoomController*)aLayer->GetAsyncPanZoomController(aIndex);
}
void CreateSimpleScrollingLayer() {
const char* layerTreeSyntax = "t";
nsIntRegion layerVisibleRegion[] = {