chrome/browser/extensions/api/cast_devices_private/cast_devices_private_api.h

   1 // Copyright 2015 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_CAST_DEVICES_PRIVATE_CAST_DEVICES_PRIVATE_API_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_CAST_DEVICES_PRIVATE_CAST_DEVICES_PRIVATE_API_H_
   7
   8 #include <vector>
   9
  10 #include "ash/cast_config_delegate.h"
  11 #include "base/callback_list.h"
  12 #include "extensions/browser/browser_context_keyed_api_factory.h"
  13 #include "extensions/browser/extension_function.h"
  14
  15 namespace extensions {
  16
  17 class CastDeviceUpdateListeners : public BrowserContextKeyedAPI {
  18  public:
  19   explicit CastDeviceUpdateListeners(content::BrowserContext* context);
  20   ~CastDeviceUpdateListeners() override;
  21
  22   // Fetch an instance for the given context.
  23   static CastDeviceUpdateListeners* Get(content::BrowserContext* context);
  24
  25   // Register a function that will be invoked only when a new device update is
  26   // available.
  27   ash::CastConfigDelegate::DeviceUpdateSubscription RegisterCallback(
  28       const ash::CastConfigDelegate::ReceiversAndActivitesCallback& callback);
  29
  30   // BrowserContextKeyedAPI implementation:
  31   static BrowserContextKeyedAPIFactory<CastDeviceUpdateListeners>*
  32   GetFactoryInstance();
  33   static const bool kServiceIsCreatedWithBrowserContext = false;
  34
  35  private:
  36   using ReceiverAndActivityList =
  37     std::vector<ash::CastConfigDelegate::ReceiverAndActivity>;
  38
  39   friend class CastDevicesPrivateUpdateDevicesFunction;  // For NotifyCallbacks.
  40   void NotifyCallbacks(const ReceiverAndActivityList& devices);
  41
  42   base::CallbackList<void(const ReceiverAndActivityList&)> callback_list_;
  43
  44   friend class BrowserContextKeyedAPIFactory<CastDeviceUpdateListeners>;
  45
  46   // BrowserContextKeyedAPI implementation:
  47   static const char* service_name() { return "CastDeviceUpdateListeners"; }
  48
  49   DISALLOW_COPY_AND_ASSIGN(CastDeviceUpdateListeners);
  50 };
  51
  52 // static void updateDeviceState(ReceiverActivity[] devices);
  53 class CastDevicesPrivateUpdateDevicesFunction :
  54     public UIThreadExtensionFunction {
  55  public:
  56   CastDevicesPrivateUpdateDevicesFunction();
  57
  58  private:
  59   ~CastDevicesPrivateUpdateDevicesFunction() override;
  60
  61   // ExtensionFunction:
  62   ResponseAction Run() override;
  63
  64   DECLARE_EXTENSION_FUNCTION("cast.devicesPrivate.updateDevices",
  65                              CASTDEVICESPRIVATE_UPDATEDEVICES);
  66   DISALLOW_COPY_AND_ASSIGN(CastDevicesPrivateUpdateDevicesFunction);
  67 };
  68
  69 }  // namespace extensions
  70
  71 #endif  // CHROME_BROWSER_EXTENSIONS_API_CAST_DEVICES_PRIVATE_CAST_DEVICES_PRIVATE_API_H_