| // Copyright 2016 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_WORKERS_WORKER_OR_WORKLET_GLOBAL_SCOPE_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_WORKERS_WORKER_OR_WORKLET_GLOBAL_SCOPE_H_ |
| |
| #include "services/network/public/mojom/fetch_api.mojom-shared.h" |
| #include "third_party/blink/renderer/bindings/core/v8/v8_cache_options.h" |
| #include "third_party/blink/renderer/core/dom/events/event_target.h" |
| #include "third_party/blink/renderer/core/execution_context/execution_context.h" |
| #include "third_party/blink/renderer/core/execution_context/security_context.h" |
| #include "third_party/blink/renderer/core/frame/csp/content_security_policy.h" |
| #include "third_party/blink/renderer/core/frame/web_feature_forward.h" |
| #include "third_party/blink/renderer/core/workers/worker_clients.h" |
| #include "third_party/blink/renderer/core/workers/worker_event_queue.h" |
| #include "third_party/blink/renderer/platform/scheduler/child/worker_global_scope_scheduler.h" |
| #include "third_party/blink/renderer/platform/wtf/bit_vector.h" |
| |
| namespace blink { |
| |
| class Modulator; |
| class ModuleTreeClient; |
| class ResourceFetcher; |
| class V8AbstractEventListener; |
| class WorkerOrWorkletScriptController; |
| class WorkerReportingProxy; |
| class WorkerThread; |
| |
| class CORE_EXPORT WorkerOrWorkletGlobalScope : public EventTargetWithInlineData, |
| public ExecutionContext, |
| public SecurityContext { |
| public: |
| using SecurityContext::GetSecurityOrigin; |
| using SecurityContext::GetContentSecurityPolicy; |
| |
| WorkerOrWorkletGlobalScope(v8::Isolate*, |
| WorkerClients*, |
| WorkerReportingProxy&); |
| ~WorkerOrWorkletGlobalScope() override; |
| |
| // EventTarget |
| const AtomicString& InterfaceName() const override; |
| |
| // ScriptWrappable |
| v8::Local<v8::Object> Wrap(v8::Isolate*, |
| v8::Local<v8::Object> creation_context) final; |
| v8::Local<v8::Object> AssociateWithWrapper( |
| v8::Isolate*, |
| const WrapperTypeInfo*, |
| v8::Local<v8::Object> wrapper) final; |
| bool HasPendingActivity() const override; |
| |
| // ExecutionContext |
| bool IsWorkerOrWorkletGlobalScope() const final { return true; } |
| bool IsJSExecutionForbidden() const final; |
| void DisableEval(const String& error_message) final; |
| bool CanExecuteScripts(ReasonForCallingCanExecuteScripts) final; |
| EventQueue* GetEventQueue() const final; |
| |
| // SecurityContext |
| void DidUpdateSecurityOrigin() final {} |
| |
| // Returns true when the WorkerOrWorkletGlobalScope is closing (e.g. via |
| // WorkerGlobalScope#close() method). If this returns true, the worker is |
| // going to be shutdown after the current task execution. Globals that |
| // don't support close operation should always return false. |
| virtual bool IsClosing() const = 0; |
| |
| // Should be called before destroying the global scope object. Allows |
| // sub-classes to perform any cleanup needed. |
| virtual void Dispose(); |
| |
| void RegisterEventListener(V8AbstractEventListener*); |
| void DeregisterEventListener(V8AbstractEventListener*); |
| |
| void SetModulator(Modulator*); |
| |
| // Called from UseCounter to record API use in this execution context. |
| void CountFeature(WebFeature); |
| |
| // Called from UseCounter to record deprecated API use in this execution |
| // context. |
| void CountDeprecation(WebFeature); |
| |
| // May return nullptr if this global scope is not threaded (i.e., |
| // MainThreadWorkletGlobalScope) or after dispose() is called. |
| virtual WorkerThread* GetThread() const = 0; |
| |
| ResourceFetcher* Fetcher() const override; |
| ResourceFetcher* EnsureFetcher(); |
| |
| WorkerClients* Clients() const { return worker_clients_.Get(); } |
| |
| WorkerOrWorkletScriptController* ScriptController() { |
| return script_controller_.Get(); |
| } |
| |
| WorkerReportingProxy& ReportingProxy() { return reporting_proxy_; } |
| |
| void Trace(blink::Visitor*) override; |
| void TraceWrappers(const ScriptWrappableVisitor*) const override; |
| |
| scheduler::WorkerGlobalScopeScheduler* GetScheduler() override; |
| scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner(TaskType) override; |
| |
| protected: |
| void ApplyContentSecurityPolicyFromVector( |
| const Vector<CSPHeaderAndType>& headers); |
| |
| // Implementation of the "fetch a module worker script graph" algorithm in the |
| // HTML spec: |
| // https://html.spec.whatwg.org/multipage/webappapis.html#fetch-a-module-worker-script-tree |
| void FetchModuleScript(const KURL& module_url_record, |
| network::mojom::FetchCredentialsMode, |
| ModuleTreeClient*); |
| |
| private: |
| CrossThreadPersistent<WorkerClients> worker_clients_; |
| Member<ResourceFetcher> resource_fetcher_; |
| Member<WorkerOrWorkletScriptController> script_controller_; |
| Member<WorkerEventQueue> event_queue_; |
| |
| WorkerReportingProxy& reporting_proxy_; |
| |
| HeapHashSet<Member<V8AbstractEventListener>> event_listeners_; |
| |
| // This is the set of features that this worker has used. |
| BitVector used_features_; |
| |
| // LocalDOMWindow::modulator_ workaround equivalent. |
| // TODO(kouhei): Remove this. |
| TraceWrapperMember<Modulator> modulator_; |
| }; |
| |
| DEFINE_TYPE_CASTS( |
| WorkerOrWorkletGlobalScope, |
| ExecutionContext, |
| context, |
| (context->IsWorkerGlobalScope() || context->IsWorkletGlobalScope()), |
| (context.IsWorkerGlobalScope() || context.IsWorkletGlobalScope())); |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_WORKERS_WORKER_OR_WORKLET_GLOBAL_SCOPE_H_ |