text: // Copyright (c) 2012 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 CONTENT_WORKER_WEBSHAREDWORKER_STUB_H_
  #define CONTENT_WORKER_WEBSHAREDWORKER_STUB_H_
  
  #include "base/memory/scoped_ptr.h"
  #include "content/child/scoped_child_process_reference.h"
  #include "content/worker/websharedworkerclient_proxy.h"
  #include "content/worker/worker_webapplicationcachehost_impl.h"
  #include "ipc/ipc_listener.h"
  #include "third_party/WebKit/public/web/WebSharedWorker.h"
  #include "url/gurl.h"
  
  namespace blink {
  class WebSharedWorker;
  }
  
  namespace content {
  
  class SharedWorkerDevToolsAgent;
  
  // This class creates a WebSharedWorker, and translates incoming IPCs to the
  // appropriate WebSharedWorker APIs.
  class WebSharedWorkerStub : public IPC::Listener {
   public:
    WebSharedWorkerStub(const base::string16& name, int route_id,
                        const WorkerAppCacheInitInfo& appcache_init_info);
  
    // IPC::Listener implementation.
    virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
    virtual void OnChannelError() OVERRIDE;
  
    // Invoked when the WebSharedWorkerClientProxy is shutting down.
    void Shutdown();
  
    // Called after terminating the worker context to make sure that the worker
    // actually terminates (is not stuck in an infinite loop).
    void EnsureWorkerContextTerminates();
  
    WebSharedWorkerClientProxy* client() { return &client_; }
  
    const WorkerAppCacheInitInfo& appcache_init_info() const {
      return appcache_init_info_;
    }
  
    // Returns the script url of this worker.
    const GURL& url();
  
  
   private:
    virtual ~WebSharedWorkerStub();
  
    void OnConnect(int sent_message_port_id, int routing_id);
    void OnStartWorkerContext(
        const GURL& url, const base::string16& user_agent,
        const base::string16& source_code,
        const base::string16& content_security_policy,
        blink::WebContentSecurityPolicyType policy_type);
  
    void OnTerminateWorkerContext();
  
    ScopedChildProcessReference process_ref_;
  
    int route_id_;
    WorkerAppCacheInitInfo appcache_init_info_;
  
    // WebSharedWorkerClient that responds to outgoing API calls
    // from the worker object.
    WebSharedWorkerClientProxy client_;
  
    blink::WebSharedWorker* impl_;
    base::string16 name_;
    bool started_;
    GURL url_;
    scoped_ptr<SharedWorkerDevToolsAgent> worker_devtools_agent_;
  
    typedef std::pair<int, int> PendingConnectInfo;
    typedef std::vector<PendingConnectInfo> PendingConnectInfoList;
    PendingConnectInfoList pending_connects_;
  
    DISALLOW_COPY_AND_ASSIGN(WebSharedWorkerStub);
  };
  
  }  // namespace content
  
  #endif  // CONTENT_WORKER_WEBSHAREDWORKER_STUB_H_
  