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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.
#include "third_party/blink/renderer/core/loader/modulescript/worklet_module_script_fetcher.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_fetcher.h"
namespace blink {
WorkletModuleScriptFetcher::WorkletModuleScriptFetcher(
ResourceFetcher* fetcher,
WorkletModuleResponsesMap* module_responses_map)
: fetcher_(fetcher), module_responses_map_(module_responses_map) {}
void WorkletModuleScriptFetcher::Trace(blink::Visitor* visitor) {
ModuleScriptFetcher::Trace(visitor);
visitor->Trace(fetcher_);
}
void WorkletModuleScriptFetcher::Fetch(FetchParameters& fetch_params,
ModuleGraphLevel level,
ModuleScriptFetcher::Client* client) {
if (module_responses_map_->GetEntry(
fetch_params.Url(), client,
fetcher_->Context().GetLoadingTaskRunner())) {
return;
}
// TODO(japhet): This worklet global scope will drive the fetch of this
// module. If another global scope requests the same module,
// module_responses_map_ will ensure that it is notified when this fetch
// completes. Currently, all worklet global scopes are destroyed when the
// Document is destroyed, so we won't end up in a situation where this global
// scope is being destroyed and needs to cancel the fetch, but some other
// global scope is still alive and still wants to complete the fetch. When we
// support worklet global scopes being created and destroyed flexibly, we'll
// need to handle that case, maybe by having a way to restart fetches in a
// different global scope?
url_ = fetch_params.Url();
ScriptResource::Fetch(fetch_params, fetcher_.Get(), this);
}
void WorkletModuleScriptFetcher::NotifyFinished(Resource* resource) {
ClearResource();
base::Optional<ModuleScriptCreationParams> params;
ScriptResource* script_resource = ToScriptResource(resource);
HeapVector<Member<ConsoleMessage>> error_messages;
if (WasModuleLoadSuccessful(script_resource, &error_messages)) {
params.emplace(
script_resource->GetResponse().Url(), script_resource->SourceText(),
script_resource->GetResourceRequest().GetFetchCredentialsMode(),
script_resource->CalculateAccessControlStatus(
fetcher_->Context().GetSecurityOrigin()));
}
// This will eventually notify |client| passed to
// WorkletModuleScriptFetcher::Fetch().
module_responses_map_->SetEntryParams(url_, params);
}
} // namespace blink
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