Index: third_party/WebKit/Source/core/workers/MainThreadWorklet.h |
diff --git a/third_party/WebKit/Source/core/workers/MainThreadWorklet.h b/third_party/WebKit/Source/core/workers/MainThreadWorklet.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..858d1e9a7c3b71b08f5770ed1c5bf72e124a3887 |
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+++ b/third_party/WebKit/Source/core/workers/MainThreadWorklet.h |
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+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef MainThreadWorklet_h |
+#define MainThreadWorklet_h |
+ |
+#include "core/workers/Worklet.h" |
+ |
+#include "bindings/core/v8/ScriptPromiseResolver.h" |
+#include "core/CoreExport.h" |
+#include "core/loader/WorkletScriptLoader.h" |
+#include "platform/heap/Handle.h" |
+ |
+namespace blink { |
+ |
+class LocalFrame; |
+ |
+// A MainThreadWorklet is a worklet that runs only on the main thread. |
+// TODO(nhiroki): This is a temporary class to support module loading for main |
+// thread worklets. This and ThreadedWorklet will be merged into the base |
+// Worklet class once threaded worklets are ready to use module loading. |
+class CORE_EXPORT MainThreadWorklet : public Worklet, |
+ public WorkletScriptLoader::Client { |
+ USING_GARBAGE_COLLECTED_MIXIN(MainThreadWorklet); |
+ WTF_MAKE_NONCOPYABLE(MainThreadWorklet); |
+ |
+ public: |
+ virtual ~MainThreadWorklet() = default; |
+ |
+ // Worklet |
+ ScriptPromise import(ScriptState*, const String& url) final; |
+ |
+ // WorkletScriptLoader::Client |
+ void NotifyWorkletScriptLoadingFinished(WorkletScriptLoader*, |
+ const ScriptSourceCode&) final; |
+ |
+ // ContextLifecycleObserver |
+ void ContextDestroyed(ExecutionContext*) final; |
+ |
+ DECLARE_VIRTUAL_TRACE(); |
+ |
+ protected: |
+ explicit MainThreadWorklet(LocalFrame*); |
+ |
+ private: |
+ HeapHashMap<Member<WorkletScriptLoader>, Member<ScriptPromiseResolver>> |
+ loader_to_resolver_map_; |
+}; |
+ |
+} // namespace blink |
+ |
+#endif // MainThreadWorklet_h |