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 WebMessagePortChannel;
  18 class WebSharedWorker;
  19 }
  20
  21 namespace content {
  22
  23 class SharedWorkerDevToolsAgent;
  24 class WebMessagePortChannelImpl;
  25
  26 // This class creates a WebSharedWorker, and translates incoming IPCs to the
  27 // appropriate WebSharedWorker APIs.
  28 class WebSharedWorkerStub : public IPC::Listener {
  29  public:
  30   WebSharedWorkerStub(const GURL& url,
  31                       const base::string16& name,
  32                       const base::string16& content_security_policy,
  33                       blink::WebContentSecurityPolicyType security_policy_type,
  34                       int route_id,
  35                       const WorkerAppCacheInitInfo& appcache_init_info);
  36
  37   // IPC::Listener implementation.
  38   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
  39   virtual void OnChannelError() OVERRIDE;
  40
  41   // Invoked when the WebSharedWorkerClientProxy is shutting down.
  42   void Shutdown();
  43
  44   void WorkerScriptLoaded();
  45   void WorkerScriptLoadFailed();
  46
  47   // Called after terminating the worker context to make sure that the worker
  48   // actually terminates (is not stuck in an infinite loop).
  49   void EnsureWorkerContextTerminates();
  50
  51   WebSharedWorkerClientProxy* client() { return &client_; }
  52
  53   const WorkerAppCacheInitInfo& appcache_init_info() const {
  54     return appcache_init_info_;
  55   }
  56
  57   // Returns the script url of this worker.
  58   const GURL& url();
  59
  60
  61  private:
  62   virtual ~WebSharedWorkerStub();
  63
  64   void OnConnect(int sent_message_port_id, int routing_id);
  65   void OnStartWorkerContext(
  66       const GURL& url, const base::string16& user_agent,
  67       const base::string16& source_code,
  68       const base::string16& content_security_policy,
  69       blink::WebContentSecurityPolicyType policy_type);
  70
  71   void OnTerminateWorkerContext();
  72
  73   ScopedChildProcessReference process_ref_;
  74
  75   int route_id_;
  76   WorkerAppCacheInitInfo appcache_init_info_;
  77
  78   // WebSharedWorkerClient that responds to outgoing API calls
  79   // from the worker object.
  80   WebSharedWorkerClientProxy client_;
  81
  82   blink::WebSharedWorker* impl_;
  83   base::string16 name_;
  84   bool started_;
  85   GURL url_;
  86   bool worker_script_loaded_;
  87   scoped_ptr<SharedWorkerDevToolsAgent> worker_devtools_agent_;
  88
  89   typedef std::vector<blink::WebMessagePortChannel*> PendingChannelList;
  90   PendingChannelList pending_channels_;
  91
  92   DISALLOW_COPY_AND_ASSIGN(WebSharedWorkerStub);
  93 };
  94
  95 }  // namespace content
  96
  97 #endif  // CONTENT_WORKER_WEBSHAREDWORKER_STUB_H_