Index: third_party/WebKit/Source/modules/csspaint/PaintWorklet.cpp |
diff --git a/third_party/WebKit/Source/modules/csspaint/PaintWorklet.cpp b/third_party/WebKit/Source/modules/csspaint/PaintWorklet.cpp |
index 5631ede6909a80d6c746431a4abca10773172f2f..063effb5dad35d3b578ef2883dd758ea695b522d 100644 |
--- a/third_party/WebKit/Source/modules/csspaint/PaintWorklet.cpp |
+++ b/third_party/WebKit/Source/modules/csspaint/PaintWorklet.cpp |
@@ -18,26 +18,43 @@ PaintWorklet* PaintWorklet::Create(LocalFrame* frame) { |
PaintWorklet::PaintWorklet(LocalFrame* frame) |
: MainThreadWorklet(frame), |
- global_scope_proxy_( |
- WTF::MakeUnique<PaintWorkletGlobalScopeProxy>(frame)) {} |
+ pending_generator_registry_(new PaintWorkletPendingGeneratorRegistry) {} |
PaintWorklet::~PaintWorklet() = default; |
-WorkletGlobalScopeProxy* PaintWorklet::GetWorkletGlobalScopeProxy() const { |
- return global_scope_proxy_.get(); |
-} |
- |
CSSPaintDefinition* PaintWorklet::FindDefinition(const String& name) { |
- return global_scope_proxy_->FindDefinition(name); |
+ if (GetNumberOfGlobalScopes() == 0) |
+ return nullptr; |
+ |
+ PaintWorkletGlobalScopeProxy* proxy = |
+ PaintWorkletGlobalScopeProxy::From(FindAvailableGlobalScope()); |
+ return proxy->FindDefinition(name); |
} |
void PaintWorklet::AddPendingGenerator(const String& name, |
CSSPaintImageGeneratorImpl* generator) { |
- return global_scope_proxy_->AddPendingGenerator(name, generator); |
+ pending_generator_registry_->AddPendingGenerator(name, generator); |
} |
DEFINE_TRACE(PaintWorklet) { |
+ visitor->Trace(pending_generator_registry_); |
MainThreadWorklet::Trace(visitor); |
} |
+bool PaintWorklet::NeedsToCreateGlobalScope() { |
+ // "The user agent must have, and select from at least two |
+ // PaintWorkletGlobalScopes in the worklet's WorkletGlobalScopes list, unless |
+ // the user agent is under memory constraints." |
+ // https://drafts.css-houdini.org/css-paint-api-1/#drawing-an-image |
+ // TODO(nhiroki): In the current impl, we create only one global scope. We |
+ // should create at least two global scopes as the spec. |
+ return !GetNumberOfGlobalScopes(); |
+} |
+ |
+std::unique_ptr<WorkletGlobalScopeProxy> PaintWorklet::CreateGlobalScope() { |
+ return WTF::MakeUnique<PaintWorkletGlobalScopeProxy>( |
+ ToDocument(GetExecutionContext())->GetFrame(), |
+ pending_generator_registry_); |
+} |
+ |
} // namespace blink |