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
19namespace base {
20class MessageLoopProxy;
21class TaskRunner;
22}
23
24namespace blink {
25class WebDataSource;
26}
27
28namespace content {
29
30class ServiceWorkerScriptContext;
31class 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.
44class 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_
134