src/chrome/browser/extensions/api/tab_capture/tab_capture_registry.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 CHROME_BROWSER_EXTENSIONS_API_TAB_CAPTURE_TAB_CAPTURE_REGISTRY_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_TAB_CAPTURE_TAB_CAPTURE_REGISTRY_H_
   7
   8 #include <string>
   9 #include <utility>
  10 #include <vector>
  11
  12 #include "base/memory/scoped_vector.h"
  13 #include "chrome/browser/extensions/api/profile_keyed_api_factory.h"
  14 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  15 #include "chrome/common/extensions/api/tab_capture.h"
  16 #include "content/public/browser/media_request_state.h"
  17 #include "content/public/browser/notification_observer.h"
  18 #include "content/public/browser/notification_registrar.h"
  19
  20 class Profile;
  21
  22 namespace extensions {
  23
  24 struct TabCaptureRequest;
  25 class FullscreenObserver;
  26
  27 namespace tab_capture = extensions::api::tab_capture;
  28
  29 class TabCaptureRegistry : public ProfileKeyedAPI,
  30                            public content::NotificationObserver,
  31                            public MediaCaptureDevicesDispatcher::Observer {
  32  public:
  33   typedef std::vector<std::pair<int, tab_capture::TabCaptureState> >
  34       RegistryCaptureInfo;
  35
  36   static TabCaptureRegistry* Get(Profile* profile);
  37
  38   // Used by ProfileKeyedAPI.
  39   static ProfileKeyedAPIFactory<TabCaptureRegistry>* GetFactoryInstance();
  40
  41   // List all pending, active and stopped capture requests.
  42   const RegistryCaptureInfo GetCapturedTabs(
  43       const std::string& extension_id) const;
  44
  45   // Add a tab capture request to the registry when a stream is requested
  46   // through the API.
  47   bool AddRequest(int render_process_id,
  48                   int render_view_id,
  49                   const std::string& extension_id,
  50                   int tab_id,
  51                   tab_capture::TabCaptureState status);
  52
  53   // The MediaStreamDevicesController will verify the request before creating
  54   // the stream by checking the registry here.
  55   bool VerifyRequest(int render_process_id, int render_view_id);
  56
  57  private:
  58   friend class ProfileKeyedAPIFactory<TabCaptureRegistry>;
  59   friend class FullscreenObserver;
  60
  61   explicit TabCaptureRegistry(Profile* profile);
  62   virtual ~TabCaptureRegistry();
  63
  64   // Used by ProfileKeyedAPI.
  65   static const char* service_name() {
  66     return "TabCaptureRegistry";
  67   }
  68
  69   static const bool kServiceIsCreatedWithBrowserContext = false;
  70   static const bool kServiceRedirectedInIncognito = true;
  71
  72   // content::NotificationObserver implementation.
  73   virtual void Observe(int type,
  74                        const content::NotificationSource& source,
  75                        const content::NotificationDetails& details) OVERRIDE;
  76
  77   // MediaCaptureDevicesDispatcher::Observer implementation.
  78   virtual void OnRequestUpdate(
  79       int render_process_id,
  80       int render_view_id,
  81       const content::MediaStreamDevice& device,
  82       const content::MediaRequestState state) OVERRIDE;
  83
  84   void DispatchStatusChangeEvent(const TabCaptureRequest* request) const;
  85
  86   TabCaptureRequest* FindCaptureRequest(int render_process_id,
  87                                         int render_view_id) const;
  88
  89   void DeleteCaptureRequest(int render_process_id, int render_view_id);
  90
  91   content::NotificationRegistrar registrar_;
  92   Profile* const profile_;
  93   ScopedVector<TabCaptureRequest> requests_;
  94
  95   DISALLOW_COPY_AND_ASSIGN(TabCaptureRegistry);
  96 };
  97
  98 }  // namespace extensions
  99
 100 #endif  // CHROME_BROWSER_EXTENSIONS_API_TAB_CAPTURE_TAB_CAPTURE_REGISTRY_H_