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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef Worklet_h | 5 #ifndef Worklet_h |
6 #define Worklet_h | 6 #define Worklet_h |
7 | 7 |
8 #include "bindings/core/v8/ScriptPromise.h" | 8 #include "bindings/core/v8/ScriptPromise.h" |
9 #include "bindings/core/v8/ScriptPromiseResolver.h" | |
10 #include "bindings/core/v8/ScriptWrappable.h" | 9 #include "bindings/core/v8/ScriptWrappable.h" |
11 #include "core/CoreExport.h" | 10 #include "core/CoreExport.h" |
12 #include "core/dom/ContextLifecycleObserver.h" | 11 #include "core/dom/ContextLifecycleObserver.h" |
13 #include "core/loader/WorkletScriptLoader.h" | |
14 #include "platform/heap/Handle.h" | 12 #include "platform/heap/Handle.h" |
15 #include "platform/loader/fetch/ResourceFetcher.h" | |
16 | 13 |
17 namespace blink { | 14 namespace blink { |
18 | 15 |
19 class LocalFrame; | 16 class LocalFrame; |
20 class WorkletGlobalScopeProxy; | 17 class WorkletGlobalScopeProxy; |
21 | 18 |
19 // This is the base implementation of Worklet interface defined in the spec: | |
20 // https://drafts.css-houdini.org/worklets/#worklet | |
21 // Regardless of worklet types, this must be created and destroyed on the main | |
falken
2017/04/18 03:37:53
"Although some worklets run off the main thread, t
nhiroki
2017/04/18 04:05:20
Done.
| |
22 // thread. | |
22 class CORE_EXPORT Worklet : public GarbageCollectedFinalized<Worklet>, | 23 class CORE_EXPORT Worklet : public GarbageCollectedFinalized<Worklet>, |
23 public WorkletScriptLoader::Client, | |
24 public ScriptWrappable, | 24 public ScriptWrappable, |
25 public ContextLifecycleObserver { | 25 public ContextLifecycleObserver { |
26 DEFINE_WRAPPERTYPEINFO(); | 26 DEFINE_WRAPPERTYPEINFO(); |
27 USING_GARBAGE_COLLECTED_MIXIN(Worklet); | 27 USING_GARBAGE_COLLECTED_MIXIN(Worklet); |
28 WTF_MAKE_NONCOPYABLE(Worklet); | 28 WTF_MAKE_NONCOPYABLE(Worklet); |
29 | 29 |
30 public: | 30 public: |
31 virtual ~Worklet() = default; | 31 virtual ~Worklet() = default; |
32 | 32 |
33 virtual void Initialize() {} | 33 virtual void Initialize() {} |
34 virtual bool IsInitialized() const { return true; } | 34 virtual bool IsInitialized() const { return true; } |
35 | 35 |
36 // https://drafts.css-houdini.org/worklets/#dom-worklet-import | |
falken
2017/04/18 03:37:53
nit: Ah, I see. Maybe this should additionally say
nhiroki
2017/04/18 04:05:20
I see. The original code has "// Worklet" but I th
| |
37 virtual ScriptPromise import(ScriptState*, const String& url) = 0; | |
38 | |
39 // Returns a proxy to WorkletGlobalScope on the context thread. | |
36 virtual WorkletGlobalScopeProxy* GetWorkletGlobalScopeProxy() const = 0; | 40 virtual WorkletGlobalScopeProxy* GetWorkletGlobalScopeProxy() const = 0; |
37 | 41 |
38 // Worklet | |
39 ScriptPromise import(ScriptState*, const String& url); | |
40 | |
41 // WorkletScriptLoader::Client | |
42 void NotifyWorkletScriptLoadingFinished(WorkletScriptLoader*, | |
43 const ScriptSourceCode&) final; | |
44 | |
45 // ContextLifecycleObserver | 42 // ContextLifecycleObserver |
46 void ContextDestroyed(ExecutionContext*) final; | 43 virtual void ContextDestroyed(ExecutionContext*); |
47 | 44 |
48 DECLARE_VIRTUAL_TRACE(); | 45 DECLARE_VIRTUAL_TRACE(); |
49 | 46 |
50 protected: | 47 protected: |
51 // The Worklet inherits the url and userAgent from the frame->document(). | 48 // The Worklet inherits the url and userAgent from the frame->document(). |
52 explicit Worklet(LocalFrame*); | 49 explicit Worklet(LocalFrame*); |
53 | 50 |
54 private: | |
55 Member<LocalFrame> frame_; | 51 Member<LocalFrame> frame_; |
56 HeapHashMap<Member<WorkletScriptLoader>, Member<ScriptPromiseResolver>> | |
57 loader_and_resolvers_; | |
58 }; | 52 }; |
59 | 53 |
60 } // namespace blink | 54 } // namespace blink |
61 | 55 |
62 #endif // Worklet_h | 56 #endif // Worklet_h |
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