Index: third_party/WebKit/Source/core/loader/modulescript/ModuleScriptLoader.h |
diff --git a/third_party/WebKit/Source/core/loader/modulescript/ModuleScriptLoader.h b/third_party/WebKit/Source/core/loader/modulescript/ModuleScriptLoader.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..2e3cf75a1704c67d00de593fa854ea22315b7901 |
--- /dev/null |
+++ b/third_party/WebKit/Source/core/loader/modulescript/ModuleScriptLoader.h |
@@ -0,0 +1,104 @@ |
+// 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 ModuleScriptLoader_h |
+#define ModuleScriptLoader_h |
+ |
+#include "core/CoreExport.h" |
+#include "core/loader/modulescript/ModuleScriptFetchRequest.h" |
+#include "core/loader/resource/ScriptResource.h" |
+#include "platform/heap/Handle.h" |
+#include "platform/loader/fetch/ResourceLoaderOptions.h" |
+#include "platform/loader/fetch/ResourceOwner.h" |
+#include "platform/weborigin/KURL.h" |
+#include "public/platform/WebURLRequest.h" |
+ |
+namespace blink { |
+ |
+class Modulator; |
+class ModuleScript; |
+class ModuleScriptLoaderClient; |
+class ModuleScriptLoaderRegistry; |
+enum class ModuleGraphLevel; |
+ |
+// A ModuleScriptLoader is responsible for loading a new single ModuleScript. |
+// |
+// A ModuleScriptLoader constructs and emits FetchRequest to ResourceFetcher |
+// (via ScriptResource::fetch). Then, it keeps track of the fetch progress by |
+// being a ScriptResourceClient. Finally, it returns its client a compiled |
+// ModuleScript. |
+// |
+// ModuleScriptLoader(s) should only be used via Modulator and its ModuleMap. |
+class CORE_EXPORT ModuleScriptLoader final |
+ : public GarbageCollectedFinalized<ModuleScriptLoader>, |
+ public ResourceOwner<ScriptResource> { |
+ WTF_MAKE_NONCOPYABLE(ModuleScriptLoader); |
+ USING_GARBAGE_COLLECTED_MIXIN(ModuleScriptLoader); |
+ |
+ enum class State { |
+ Initial, |
+ // FetchRequest is being processed, and ModuleScriptLoader hasn't |
+ // notifyFinished(). |
+ Fetching, |
+ // Finished successfully or w/ error. |
+ Finished, |
+ }; |
+ |
+ public: |
+ static ModuleScriptLoader* create(Modulator* modulator, |
+ ModuleScriptLoaderRegistry* registry, |
+ ModuleScriptLoaderClient* client) { |
+ return new ModuleScriptLoader(modulator, registry, client); |
+ } |
+ |
+ ~ModuleScriptLoader() override; |
+ |
+ // Note: fetch may notify |m_client| synchronously or asynchronously. |
+ void fetch(const ModuleScriptFetchRequest&, |
+ ResourceFetcher*, |
+ ModuleGraphLevel); |
+ |
+ bool isInitialState() const { return m_state == State::Initial; } |
+ bool hasFinished() const { return m_state == State::Finished; } |
+ |
+ DECLARE_TRACE(); |
+ |
+ private: |
+ ModuleScriptLoader(Modulator*, |
+ ModuleScriptLoaderRegistry*, |
+ ModuleScriptLoaderClient*); |
+ |
+ static ModuleScript* createModuleScript(const String& sourceText, |
+ const KURL&, |
+ Modulator*, |
+ const String& nonce, |
+ ParserDisposition, |
+ WebURLRequest::FetchCredentialsMode); |
+ |
+ void advanceState(State newState); |
+#if DCHECK_IS_ON() |
+ static const char* stateToString(State); |
+#endif |
+ |
+ // Implements ScriptResourceClient |
+ void notifyFinished(Resource*) override; |
+ String debugName() const override { return "ModuleScriptLoader"; } |
+ |
+ static bool wasModuleLoadSuccessful(Resource*); |
+ |
+ Member<Modulator> m_modulator; |
+ State m_state = State::Initial; |
+ String m_nonce; |
+ ParserDisposition m_parserState; |
+ Member<ModuleScript> m_moduleScript; |
+ Member<ModuleScriptLoaderRegistry> m_registry; |
+ Member<ModuleScriptLoaderClient> m_client; |
+#if DCHECK_IS_ON() |
+ KURL m_url; |
+#endif |
+}; |
+ |
+} // namespace blink |
+ |
+#endif |