content/browser/bluetooth/bluetooth_dispatcher_host.h

   1 // Copyright 2014 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_BLUETOOTH_BLUETOOTH_DISPATCHER_HOST_H_
   6 #define CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_DISPATCHER_HOST_H_
   7
   8 #include "base/basictypes.h"
   9 #include "content/common/bluetooth/bluetooth_error.h"
  10 #include "content/public/browser/browser_message_filter.h"
  11 #include "device/bluetooth/bluetooth_adapter.h"
  12
  13 namespace content {
  14
  15 // Dispatches and sends bluetooth related messages sent to/from a child
  16 // process BluetoothDispatcher from/to the main browser process.
  17 // Constructed on the main (UI) thread and receives IPC on the IO thread.
  18 // Intended to be instantiated by the RenderProcessHost and installed as
  19 // a filter on the channel. BrowserMessageFilter is refcounted and typically
  20 // lives as long as it is installed on a channel.
  21 //
  22 // BluetoothDispatcherHost primarily operates on the UI thread because the
  23 // BluetoothAdapter and related objects live there. An exception is made for
  24 // Receiving IPC on the IO thread.
  25 class BluetoothDispatcherHost : public BrowserMessageFilter,
  26                                 public device::BluetoothAdapter::Observer {
  27  public:
  28   // Creates a BluetoothDispatcherHost.
  29   static scoped_refptr<BluetoothDispatcherHost> Create();
  30
  31   // BrowserMessageFilter:
  32   void OnDestruct() const override;
  33   bool OnMessageReceived(const IPC::Message& message) override;
  34
  35  protected:
  36   BluetoothDispatcherHost();
  37   ~BluetoothDispatcherHost() override;
  38
  39  private:
  40   friend class base::DeleteHelper<BluetoothDispatcherHost>;
  41   friend struct BrowserThread::DeleteOnThread<BrowserThread::UI>;
  42
  43   // Set |adapter_| to a BluetoothAdapter instance and register observers,
  44   // releasing references to previous |adapter_|.
  45   void set_adapter(scoped_refptr<device::BluetoothAdapter> adapter);
  46
  47   // IPC Handlers, see definitions in bluetooth_messages.h.
  48   void OnRequestDevice(int thread_id, int request_id);
  49   void OnRequestDeviceOnUI(int thread_id, int request_id);
  50   void OnConnectGATT(int thread_id, int request_id,
  51                      const std::string& device_instance_id);
  52   void OnConnectGATTOnUI(int thread_id, int request_id,
  53                          const std::string& device_instance_id);
  54   void OnSetBluetoothMockDataSetForTesting(const std::string& name);
  55
  56   // A BluetoothAdapter instance representing an adapter of the system.
  57   scoped_refptr<device::BluetoothAdapter> adapter_;
  58
  59   enum class MockData { NOT_MOCKING, REJECT, RESOLVE };
  60   MockData bluetooth_mock_data_set_;
  61   BluetoothError bluetooth_request_device_reject_type_;
  62
  63   DISALLOW_COPY_AND_ASSIGN(BluetoothDispatcherHost);
  64 };
  65
  66 }  // namespace content
  67
  68 #endif  // CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_DISPATCHER_HOST_H_