third_party/WebKit/Source/core/exported/WebSharedWorkerImpl.h

/*
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 * modification, are permitted provided that the following conditions are
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 * in the documentation and/or other materials provided with the
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#ifndef WebSharedWorkerImpl_h
#define WebSharedWorkerImpl_h

#include "public/web/WebSharedWorker.h"

#include <memory>
#include "base/memory/scoped_refptr.h"
#include "core/CoreExport.h"
#include "core/exported/WorkerShadowPage.h"
#include "core/workers/SharedWorkerReportingProxy.h"
#include "core/workers/WorkerClients.h"
#include "core/workers/WorkerThread.h"
#include "public/mojom/net/ip_address_space.mojom-shared.h"
#include "public/platform/WebContentSecurityPolicy.h"
#include "public/web/WebSharedWorkerClient.h"
#include "public/web/worker_content_settings_proxy.mojom-blink.h"
#include "services/service_manager/public/mojom/interface_provider.mojom-blink.h"

namespace blink {

class WebApplicationCacheHost;
class WebApplicationCacheHostClient;
class WebServiceWorkerNetworkProvider;
class WebSharedWorkerClient;
class WebString;
class WebURL;
class WorkerClassicScriptLoader;
class WorkerInspectorProxy;

// This class is used by the worker process code to talk to the SharedWorker
// implementation. This is basically accessed on the main thread, but some
// methods must be called from a worker thread. Such methods are suffixed with
// *OnWorkerThread or have header comments.
class CORE_EXPORT WebSharedWorkerImpl final : public WebSharedWorker,
                                              public WorkerShadowPage::Client {
 public:
  explicit WebSharedWorkerImpl(WebSharedWorkerClient*);

  // WorkerShadowPage::Client overrides.
  std::unique_ptr<WebApplicationCacheHost> CreateApplicationCacheHost(
      WebApplicationCacheHostClient*) override;
  void OnShadowPageInitialized() override;

  // WebDevToolsAgentImpl::Client overrides.
  void ResumeStartup() override;
  const base::UnguessableToken& GetDevToolsWorkerToken() override;

  // WebSharedWorker methods:
  void StartWorkerContext(
      const WebURL&,
      const WebString& name,
      const WebString& content_security_policy,
      WebContentSecurityPolicyType,
      mojom::IPAddressSpace,
      const base::UnguessableToken& devtools_worker_token,
      mojo::ScopedMessagePipeHandle content_settings_handle,
      mojo::ScopedMessagePipeHandle interface_provider) override;
  void Connect(MessagePortChannel) override;
  void TerminateWorkerContext() override;

  void PauseWorkerContextOnStart() override;
  void BindDevToolsAgent(
      mojo::ScopedInterfaceEndpointHandle devtools_agent_request) override;

  // Callback methods for SharedWorkerReportingProxy.
  void CountFeature(WebFeature);
  void PostMessageToPageInspector(int session_id, const String& message);
  void DidCloseWorkerGlobalScope();
  void DidTerminateWorkerThread();

 private:
  ~WebSharedWorkerImpl() override;

  WorkerThread* GetWorkerThread() { return worker_thread_.get(); }

  // Shuts down the worker thread.
  void TerminateWorkerThread();

  void DidReceiveScriptLoaderResponse();
  void OnScriptLoaderFinished();

  void ConnectTaskOnWorkerThread(MessagePortChannel);

  std::unique_ptr<WorkerShadowPage> shadow_page_;
  // Unique worker token used by DevTools to attribute different instrumentation
  // to the same worker.
  base::UnguessableToken devtools_worker_token_;

  std::unique_ptr<WebServiceWorkerNetworkProvider> network_provider_;

  Persistent<WorkerInspectorProxy> worker_inspector_proxy_;

  Persistent<SharedWorkerReportingProxy> reporting_proxy_;
  std::unique_ptr<WorkerThread> worker_thread_;
  mojom::blink::WorkerContentSettingsProxyPtrInfo content_settings_info_;

  WebSharedWorkerClient* client_;

  bool asked_to_terminate_ = false;
  bool pause_worker_context_on_start_ = false;
  bool is_paused_on_start_ = false;

  // Kept around only while main script loading is ongoing.
  scoped_refptr<WorkerClassicScriptLoader> main_script_loader_;

  WebURL url_;
  WebString name_;
  mojom::IPAddressSpace creation_address_space_;

  service_manager::mojom::blink::InterfaceProviderPtrInfo
      pending_interface_provider_;
};

}  // namespace blink

#endif  // WebSharedWorkerImpl_h