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Bug 1917458 - Factor out remote effects update. r=mstange

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No behavior change, just moving code around for the following patches.

Differential Revision: https://phabricator.services.mozilla.com/D222095
This commit is contained in:
Emilio Cobos Álvarez
2024-09-15 21:50:00 +00:00
parent d81db3b2ba
commit 1c4eb92d25
2 changed files with 62 additions and 56 deletions
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108
dom/base/Document.cpp
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@@ -16808,59 +16808,65 @@ void Document::UpdateIntersections(TimeStamp aNowTime) {
});
}
static void UpdateEffectsOnBrowsingContext(BrowsingContext* aBc,
const IntersectionInput& aInput,
bool aIsHidden) {
Element* el = aBc->GetEmbedderElement();
if (!el) {
return;
}
auto* rb = RemoteBrowser::GetFrom(el);
if (!rb) {
return;
}
rb->UpdateEffects([&] {
if (aIsHidden) {
// Fully hidden if in the background.
return EffectsInfo::FullyHidden();
}
const IntersectionOutput output = DOMIntersectionObserver::Intersect(
aInput, *el, DOMIntersectionObserver::BoxToUse::Content);
if (!output.Intersects()) {
// XXX do we want to pass the scale and such down even if out of the
// viewport?
return EffectsInfo::FullyHidden();
}
MOZ_ASSERT(el->GetPrimaryFrame(), "How do we intersect without a frame?");
nsSubDocumentFrame* subDocFrame = do_QueryFrame(el->GetPrimaryFrame());
if (MOZ_UNLIKELY(NS_WARN_IF(!subDocFrame))) {
// <frame> not inside a <frameset> might not create a subdoc frame,
// for example.
return EffectsInfo::FullyHidden();
}
Maybe<nsRect> visibleRect;
gfx::MatrixScales rasterScale;
visibleRect = subDocFrame->GetVisibleRect();
if (!visibleRect) {
// If we have no visible rect (e.g., because we are zero-sized) we
// still want to provide the intersection rect in order to get the
// right throttling behavior.
visibleRect.emplace(*output.mIntersectionRect -
output.mTargetRect.TopLeft());
}
rasterScale = subDocFrame->GetRasterScale();
ParentLayerToScreenScale2D transformToAncestorScale =
ParentLayerToParentLayerScale(
subDocFrame->PresShell()->GetCumulativeResolution()) *
nsLayoutUtils::GetTransformToAncestorScaleCrossProcessForFrameMetrics(
subDocFrame);
return EffectsInfo::VisibleWithinRect(visibleRect, rasterScale,
transformToAncestorScale);
}());
}
void Document::UpdateRemoteFrameEffects() {
if (auto* wc = GetWindowContext(); wc && !wc->Children().IsEmpty()) {
auto margin = DOMIntersectionObserver::LazyLoadingRootMargin();
const IntersectionInput input = DOMIntersectionObserver::ComputeInput(
*this, /* aRoot = */ nullptr, &margin);
auto margin = DOMIntersectionObserver::LazyLoadingRootMargin();
const IntersectionInput input = DOMIntersectionObserver::ComputeInput(
*this, /* aRoot = */ nullptr, &margin);
const bool hidden = Hidden();
if (auto* wc = GetWindowContext()) {
for (const RefPtr<BrowsingContext>& child : wc->Children()) {
Element* el = child->GetEmbedderElement();
if (!el) {
continue;
}
auto* rb = RemoteBrowser::GetFrom(el);
if (!rb) {
continue;
}
EffectsInfo info = [&] {
if (Hidden()) {
// If we're in the background, then the child frame should be hidden
// as well.
return EffectsInfo::FullyHidden();
}
const IntersectionOutput output = DOMIntersectionObserver::Intersect(
input, *el, DOMIntersectionObserver::BoxToUse::Content);
if (!output.Intersects()) {
// XXX do we want to pass the scale and such down even if out of the
// viewport?
return EffectsInfo::FullyHidden();
}
auto* frame = el->GetPrimaryFrame();
MOZ_ASSERT(frame, "How do we intersect with no frame?");
nsSubDocumentFrame* subDocFrame = do_QueryFrame(frame);
if (MOZ_UNLIKELY(NS_WARN_IF(!subDocFrame))) {
// <frame> not inside a <frameset> might not create a subdoc frame,
// for example.
return EffectsInfo::FullyHidden();
}
Maybe<nsRect> visibleRect = subDocFrame->GetVisibleRect();
if (!visibleRect) {
// If we have no visible rect (e.g., because we are zero-sized) we
// still want to provide the intersection rect in order to get the
// right throttling behavior.
visibleRect.emplace(*output.mIntersectionRect -
output.mTargetRect.TopLeft());
}
const gfx::MatrixScales rasterScale = subDocFrame->GetRasterScale();
const ParentLayerToScreenScale2D transformToAncestorScale =
ParentLayerToParentLayerScale(
frame->PresShell()->GetCumulativeResolution()) *
nsLayoutUtils::
GetTransformToAncestorScaleCrossProcessForFrameMetrics(frame);
return EffectsInfo::VisibleWithinRect(visibleRect, rasterScale,
transformToAncestorScale);
}();
rb->UpdateEffects(std::move(info));
UpdateEffectsOnBrowsingContext(child, input, hidden);
}
}
EnumerateSubDocuments([](Document& aDoc) {