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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 THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_MODULESCRIPT_MODULE_SCRIPT_FETCHER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_MODULESCRIPT_MODULE_SCRIPT_FETCHER_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/loader/modulescript/module_script_creation_params.h"
#include "third_party/blink/renderer/core/loader/resource/script_resource.h"
#include "third_party/blink/renderer/core/script/modulator.h"
#include "third_party/blink/renderer/platform/heap/heap_allocator.h"
#include "third_party/blink/renderer/platform/loader/fetch/fetch_parameters.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_fetcher.h"
namespace blink {
class ConsoleMessage;
class ModuleScriptLoader;
// ModuleScriptFetcher is an abstract class to fetch module scripts. Derived
// classes are expected to fetch a module script for the given FetchParameters
// and return its client a fetched resource as ModuleScriptCreationParams.
class CORE_EXPORT ModuleScriptFetcher : public ResourceClient {
public:
// ModuleScriptFetcher should only be called from ModuleScriptLoader.
explicit ModuleScriptFetcher(base::PassKey<ModuleScriptLoader>);
class CORE_EXPORT Client : public GarbageCollectedMixin {
public:
virtual void NotifyFetchFinishedError(
const HeapVector<Member<ConsoleMessage>>& error_messages) = 0;
virtual void NotifyFetchFinishedSuccess(
const ModuleScriptCreationParams&) = 0;
// These helpers are used only from WorkletModuleResponsesMap.
// TODO(nhiroki): Move these helpers to WorkletModuleResponsesMap.
void OnFetched(const ModuleScriptCreationParams&);
void OnFailed();
};
// Fetch() must be called right after ModuleScriptFetcher is constructed.
// Fetch() must not be called more than once.
//
// Takes a non-const reference to FetchParameters because
// ScriptResource::Fetch() requires it.
virtual void Fetch(FetchParameters&,
ModuleType,
ResourceFetcher*,
ModuleGraphLevel,
Client*) = 0;
void Trace(Visitor*) const override;
protected:
static bool WasModuleLoadSuccessful(
ScriptResource* resource,
ModuleType expected_module_type,
HeapVector<Member<ConsoleMessage>>* error_messages);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_MODULESCRIPT_MODULE_SCRIPT_FETCHER_H_
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