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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef WorkletScriptLoader_h | |
| 6 #define WorkletScriptLoader_h | |
| 7 | |
| 8 #include "bindings/core/v8/ScriptPromiseResolver.h" | |
| 9 #include "core/fetch/ResourceClient.h" | |
| 10 #include "core/fetch/ResourceOwner.h" | |
| 11 #include "core/fetch/ScriptResource.h" | |
| 12 | |
| 13 namespace blink { | |
| 14 | |
| 15 class Worklet; | |
| 16 | |
| 17 // Class that is responsible for processing {@code resource} that is associated
with worklet's import promise. | |
| 18 class WorkletScriptLoader final : public GarbageCollectedFinalized<WorkletScript
Loader>, public ResourceOwner<ScriptResource, ScriptResourceClient> { | |
| 19 USING_GARBAGE_COLLECTED_MIXIN(WorkletScriptLoader); | |
| 20 WTF_MAKE_NONCOPYABLE(WorkletScriptLoader); | |
| 21 public: | |
| 22 static WorkletScriptLoader* create(ScriptPromiseResolver* scriptPromiseResol
ver, Worklet* worklet, ScriptResource* resource) | |
| 23 { | |
| 24 return new WorkletScriptLoader(scriptPromiseResolver, worklet, resource)
; | |
| 25 } | |
| 26 | |
| 27 ~WorkletScriptLoader() override = default; | |
| 28 | |
| 29 // Cancels loading of {@code m_resource}. | |
| 30 // | |
| 31 // Typically it gets called when WorkletScriptLoader's host is about to be d
isposed off. | |
| 32 void cancel(); | |
| 33 | |
| 34 DECLARE_TRACE(); | |
| 35 | |
| 36 private: | |
| 37 // Default constructor. | |
| 38 // | |
| 39 // @param resolver Promise resolver that is used to reject/resolve the promi
se on ScriptResourceClient::notifyFinished event. | |
| 40 // @param host Host that needs be notified when the resource is downloaded. | |
| 41 // @param resource that needs to be downloaded. | |
| 42 WorkletScriptLoader(ScriptPromiseResolver*, Worklet* host, ScriptResource*); | |
| 43 | |
| 44 // ResourceClient | |
| 45 void notifyFinished(Resource*) final; | |
| 46 String debugName() const final { return "WorkletLoader"; } | |
| 47 | |
| 48 Member<ScriptPromiseResolver> m_resolver; | |
| 49 Member<Worklet> m_host; | |
| 50 }; | |
| 51 | |
| 52 } // namespace blink | |
| 53 | |
| 54 #endif // WorkletScriptLoader_h | |
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