content/renderer/service_worker/embedded_worker_context_client.h

   1 // Copyright 2013 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_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_CONTEXT_CLIENT_H_
   6 #define CONTENT_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_CONTEXT_CLIENT_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "base/strings/string16.h"
  11 #include "content/common/service_worker/service_worker_types.h"
  12 #include "ipc/ipc_listener.h"
  13 #include "third_party/WebKit/public/platform/WebServiceWorkerClientsInfo.h"
  14 #include "third_party/WebKit/public/platform/WebServiceWorkerEventResult.h"
  15 #include "third_party/WebKit/public/platform/WebURL.h"
  16 #include "third_party/WebKit/public/web/WebServiceWorkerContextClient.h"
  17 #include "url/gurl.h"
  18
  19 namespace base {
  20 class MessageLoopProxy;
  21 class TaskRunner;
  22 }
  23
  24 namespace blink {
  25 class WebDataSource;
  26 }
  27
  28 namespace content {
  29
  30 class ServiceWorkerScriptContext;
  31 class ThreadSafeSender;
  32
  33 // This class provides access to/from an embedded worker's WorkerGlobalScope.
  34 // All methods other than the constructor (it's created on the main thread)
  35 // and createServiceWorkerNetworkProvider (also called on the main thread)
  36 // are called on the worker thread.
  37 //
  38 // TODO(kinuko): Currently EW/SW separation is made a little hazily.
  39 // This should implement WebEmbeddedWorkerContextClient
  40 // or sort of it (which doesn't exist yet) rather than
  41 // WebServiceWorkerContextClient if we want to separate them more cleanly,
  42 // or ServiceWorkerScriptContext should be merged into this class
  43 // if we consider EW == SW script context.
  44 class EmbeddedWorkerContextClient
  45     : public blink::WebServiceWorkerContextClient {
  46  public:
  47   // Returns a thread-specific client instance.  This does NOT create a
  48   // new instance.
  49   static EmbeddedWorkerContextClient* ThreadSpecificInstance();
  50
  51   EmbeddedWorkerContextClient(int embedded_worker_id,
  52                               int64 service_worker_version_id,
  53                               const GURL& service_worker_scope,
  54                               const GURL& script_url,
  55                               int worker_devtools_agent_route_id);
  56
  57   virtual ~EmbeddedWorkerContextClient();
  58
  59   bool OnMessageReceived(const IPC::Message& msg);
  60
  61   void Send(IPC::Message* message);
  62
  63   // WebServiceWorkerContextClient overrides, some of them are just dispatched
  64   // on to script_context_.
  65   virtual blink::WebURL scope() const;
  66   virtual blink::WebServiceWorkerCacheStorage* cacheStorage();
  67   virtual void didPauseAfterDownload();
  68   virtual void getClients(blink::WebServiceWorkerClientsCallbacks*);
  69   virtual void workerReadyForInspection();
  70   virtual void workerContextFailedToStart();
  71   virtual void workerContextStarted(blink::WebServiceWorkerContextProxy* proxy);
  72   virtual void willDestroyWorkerContext();
  73   virtual void workerContextDestroyed();
  74   virtual void reportException(const blink::WebString& error_message,
  75                                int line_number,
  76                                int column_number,
  77                                const blink::WebString& source_url);
  78   virtual void reportConsoleMessage(int source,
  79                                     int level,
  80                                     const blink::WebString& message,
  81                                     int line_number,
  82                                     const blink::WebString& source_url);
  83   virtual void dispatchDevToolsMessage(const blink::WebString&);
  84   virtual void saveDevToolsAgentState(const blink::WebString&);
  85   virtual void didHandleActivateEvent(int request_id,
  86                                       blink::WebServiceWorkerEventResult);
  87   virtual void didHandleInstallEvent(int request_id,
  88                                      blink::WebServiceWorkerEventResult result);
  89   virtual void didHandleFetchEvent(int request_id);
  90   virtual void didHandleFetchEvent(
  91       int request_id,
  92       const blink::WebServiceWorkerResponse& response);
  93   virtual void didHandleSyncEvent(int request_id);
  94   virtual blink::WebServiceWorkerNetworkProvider*
  95       createServiceWorkerNetworkProvider(blink::WebDataSource* data_source);
  96   virtual void postMessageToClient(
  97       int client_id,
  98       const blink::WebString& message,
  99       blink::WebMessagePortChannelArray* channels);
 100
 101   // TODO: Implement DevTools related method overrides.
 102
 103   int embedded_worker_id() const { return embedded_worker_id_; }
 104   base::MessageLoopProxy* main_thread_proxy() const {
 105     return main_thread_proxy_.get();
 106   }
 107   ThreadSafeSender* thread_safe_sender() { return sender_.get(); }
 108
 109  private:
 110   void OnMessageToWorker(int thread_id,
 111                          int embedded_worker_id,
 112                          const IPC::Message& message);
 113   void SendWorkerStarted();
 114
 115   const int embedded_worker_id_;
 116   const int64 service_worker_version_id_;
 117   const GURL service_worker_scope_;
 118   const GURL script_url_;
 119   const int worker_devtools_agent_route_id_;
 120   scoped_refptr<ThreadSafeSender> sender_;
 121   scoped_refptr<base::MessageLoopProxy> main_thread_proxy_;
 122   scoped_refptr<base::TaskRunner> worker_task_runner_;
 123
 124   scoped_ptr<ServiceWorkerScriptContext> script_context_;
 125
 126   base::WeakPtrFactory<EmbeddedWorkerContextClient> weak_factory_;
 127
 128   DISALLOW_COPY_AND_ASSIGN(EmbeddedWorkerContextClient);
 129 };
 130
 131 }  // namespace content
 132
 133 #endif  // CONTENT_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_CONTEXT_CLIENT_H_