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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_WORKER_WEBSHAREDWORKER_STUB_H_
      6 #define CONTENT_WORKER_WEBSHAREDWORKER_STUB_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "content/worker/websharedworkerclient_proxy.h"
     10 #include "content/worker/worker_webapplicationcachehost_impl.h"
     11 #include "ipc/ipc_listener.h"
     12 #include "third_party/WebKit/public/web/WebSharedWorker.h"
     13 #include "url/gurl.h"
     14 
     15 namespace WebKit {
     16 class WebSharedWorker;
     17 }
     18 
     19 namespace content {
     20 
     21 class SharedWorkerDevToolsAgent;
     22 
     23 // This class creates a WebSharedWorker, and translates incoming IPCs to the
     24 // appropriate WebSharedWorker APIs.
     25 class WebSharedWorkerStub : public IPC::Listener {
     26  public:
     27   WebSharedWorkerStub(const string16& name, int route_id,
     28                       const WorkerAppCacheInitInfo& appcache_init_info);
     29 
     30   // IPC::Listener implementation.
     31   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     32   virtual void OnChannelError() OVERRIDE;
     33 
     34   // Invoked when the WebSharedWorkerClientProxy is shutting down.
     35   void Shutdown();
     36 
     37   // Called after terminating the worker context to make sure that the worker
     38   // actually terminates (is not stuck in an infinite loop).
     39   void EnsureWorkerContextTerminates();
     40 
     41   WebSharedWorkerClientProxy* client() { return &client_; }
     42 
     43   const WorkerAppCacheInitInfo& appcache_init_info() const {
     44     return appcache_init_info_;
     45   }
     46 
     47   // Returns the script url of this worker.
     48   const GURL& url();
     49 
     50 
     51  private:
     52   virtual ~WebSharedWorkerStub();
     53 
     54   void OnConnect(int sent_message_port_id, int routing_id);
     55   void OnStartWorkerContext(
     56       const GURL& url, const string16& user_agent, const string16& source_code,
     57       const string16& content_security_policy,
     58       WebKit::WebContentSecurityPolicyType policy_type);
     59 
     60   void OnTerminateWorkerContext();
     61 
     62   int route_id_;
     63   WorkerAppCacheInitInfo appcache_init_info_;
     64 
     65   // WebSharedWorkerClient that responds to outgoing API calls
     66   // from the worker object.
     67   WebSharedWorkerClientProxy client_;
     68 
     69   WebKit::WebSharedWorker* impl_;
     70   string16 name_;
     71   bool started_;
     72   GURL url_;
     73   scoped_ptr<SharedWorkerDevToolsAgent> worker_devtools_agent_;
     74 
     75   typedef std::pair<int, int> PendingConnectInfo;
     76   typedef std::vector<PendingConnectInfo> PendingConnectInfoList;
     77   PendingConnectInfoList pending_connects_;
     78 
     79   DISALLOW_COPY_AND_ASSIGN(WebSharedWorkerStub);
     80 };
     81 
     82 }  // namespace content
     83 
     84 #endif  // CONTENT_WORKER_WEBSHAREDWORKER_STUB_H_
     85