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_BROWSER_APPCACHE_APPCACHE_DISPATCHER_HOST_H_
6#define CONTENT_BROWSER_APPCACHE_APPCACHE_DISPATCHER_HOST_H_
7
8#include <vector>
9
10#include "base/memory/ref_counted.h"
11#include "base/memory/scoped_ptr.h"
12#include "base/process/process.h"
13#include "content/browser/appcache/appcache_backend_impl.h"
14#include "content/browser/appcache/appcache_frontend_proxy.h"
15#include "content/public/browser/browser_message_filter.h"
16
17namespace content {
18class ChromeAppCacheService;
19
20// Handles appcache related messages sent to the main browser process from
21// its child processes. There is a distinct host for each child process.
22// Messages are handled on the IO thread. The BrowserRenderProcessHost and
23// WorkerProcessHost create an instance and delegates calls to it.
24class AppCacheDispatcherHost : public BrowserMessageFilter {
25 public:
26  AppCacheDispatcherHost(ChromeAppCacheService* appcache_service,
27                         int process_id);
28
29  // BrowserIOMessageFilter implementation
30  virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
31  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
32
33 protected:
34  virtual ~AppCacheDispatcherHost();
35
36  // BrowserMessageFilter override.
37  virtual void BadMessageReceived() OVERRIDE;
38
39 private:
40  // IPC message handlers
41  void OnRegisterHost(int host_id);
42  void OnUnregisterHost(int host_id);
43  void OnSetSpawningHostId(int host_id, int spawning_host_id);
44  void OnSelectCache(int host_id, const GURL& document_url,
45                     int64 cache_document_was_loaded_from,
46                     const GURL& opt_manifest_url);
47  void OnSelectCacheForWorker(int host_id, int parent_process_id,
48                              int parent_host_id);
49  void OnSelectCacheForSharedWorker(int host_id, int64 appcache_id);
50  void OnMarkAsForeignEntry(int host_id, const GURL& document_url,
51                            int64 cache_document_was_loaded_from);
52  void OnGetStatus(int host_id, IPC::Message* reply_msg);
53  void OnStartUpdate(int host_id, IPC::Message* reply_msg);
54  void OnSwapCache(int host_id, IPC::Message* reply_msg);
55  void OnGetResourceList(
56      int host_id,
57      std::vector<AppCacheResourceInfo>* resource_infos);
58  void GetStatusCallback(AppCacheStatus status, void* param);
59  void StartUpdateCallback(bool result, void* param);
60  void SwapCacheCallback(bool result, void* param);
61
62
63  scoped_refptr<ChromeAppCacheService> appcache_service_;
64  AppCacheFrontendProxy frontend_proxy_;
65  AppCacheBackendImpl backend_impl_;
66
67  content::GetStatusCallback get_status_callback_;
68  content::StartUpdateCallback start_update_callback_;
69  content::SwapCacheCallback swap_cache_callback_;
70  scoped_ptr<IPC::Message> pending_reply_msg_;
71
72  // The corresponding ChildProcessHost object's id().
73  int process_id_;
74
75  DISALLOW_COPY_AND_ASSIGN(AppCacheDispatcherHost);
76};
77
78}  // namespace content
79
80#endif  // CONTENT_BROWSER_APPCACHE_APPCACHE_DISPATCHER_HOST_H_
81