content/worker/websharedworker_stub.h

   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/child/scoped_child_process_reference.h"
  10 #include "content/worker/websharedworkerclient_proxy.h"
  11 #include "content/worker/worker_webapplicationcachehost_impl.h"
  12 #include "ipc/ipc_listener.h"
  13 #include "third_party/WebKit/public/web/WebSharedWorker.h"
  14 #include "url/gurl.h"
  15
  16 namespace blink {
  17 class WebSharedWorker;
  18 }
  19
  20 namespace content {
  21
  22 class SharedWorkerDevToolsAgent;
  23
  24 // This class creates a WebSharedWorker, and translates incoming IPCs to the
  25 // appropriate WebSharedWorker APIs.
  26 class WebSharedWorkerStub : public IPC::Listener {
  27  public:
  28   WebSharedWorkerStub(const string16& name, int route_id,
  29                       const WorkerAppCacheInitInfo& appcache_init_info);
  30
  31   // IPC::Listener implementation.
  32   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
  33   virtual void OnChannelError() OVERRIDE;
  34
  35   // Invoked when the WebSharedWorkerClientProxy is shutting down.
  36   void Shutdown();
  37
  38   // Called after terminating the worker context to make sure that the worker
  39   // actually terminates (is not stuck in an infinite loop).
  40   void EnsureWorkerContextTerminates();
  41
  42   WebSharedWorkerClientProxy* client() { return &client_; }
  43
  44   const WorkerAppCacheInitInfo& appcache_init_info() const {
  45     return appcache_init_info_;
  46   }
  47
  48   // Returns the script url of this worker.
  49   const GURL& url();
  50
  51
  52  private:
  53   virtual ~WebSharedWorkerStub();
  54
  55   void OnConnect(int sent_message_port_id, int routing_id);
  56   void OnStartWorkerContext(
  57       const GURL& url, const string16& user_agent, const string16& source_code,
  58       const string16& content_security_policy,
  59       blink::WebContentSecurityPolicyType policy_type);
  60
  61   void OnTerminateWorkerContext();
  62
  63   ScopedChildProcessReference process_ref_;
  64
  65   int route_id_;
  66   WorkerAppCacheInitInfo appcache_init_info_;
  67
  68   // WebSharedWorkerClient that responds to outgoing API calls
  69   // from the worker object.
  70   WebSharedWorkerClientProxy client_;
  71
  72   blink::WebSharedWorker* impl_;
  73   string16 name_;
  74   bool started_;
  75   GURL url_;
  76   scoped_ptr<SharedWorkerDevToolsAgent> worker_devtools_agent_;
  77
  78   typedef std::pair<int, int> PendingConnectInfo;
  79   typedef std::vector<PendingConnectInfo> PendingConnectInfoList;
  80   PendingConnectInfoList pending_connects_;
  81
  82   DISALLOW_COPY_AND_ASSIGN(WebSharedWorkerStub);
  83 };
  84
  85 }  // namespace content
  86
  87 #endif  // CONTENT_WORKER_WEBSHAREDWORKER_STUB_H_