device/bluetooth/bluetooth_low_energy_discovery_manager_mac.mm

   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 #include "device/bluetooth/bluetooth_low_energy_discovery_manager_mac.h"
   6
   7 #include "base/mac/mac_util.h"
   8 #include "base/mac/sdk_forward_declarations.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/strings/sys_string_conversions.h"
  11 #include "device/bluetooth/bluetooth_adapter_mac.h"
  12 #include "device/bluetooth/bluetooth_low_energy_device_mac.h"
  13
  14 namespace device {
  15
  16 BluetoothLowEnergyDiscoveryManagerMac::
  17     ~BluetoothLowEnergyDiscoveryManagerMac() {
  18 }
  19
  20 bool BluetoothLowEnergyDiscoveryManagerMac::IsDiscovering() const {
  21   return discovering_;
  22 }
  23
  24 void BluetoothLowEnergyDiscoveryManagerMac::StartDiscovery(
  25     BluetoothDevice::UUIDList services_uuids) {
  26   discovering_ = true;
  27   pending_ = true;
  28   services_uuids_ = services_uuids;
  29   TryStartDiscovery();
  30 }
  31
  32 void BluetoothLowEnergyDiscoveryManagerMac::TryStartDiscovery() {
  33   if (!discovering_) {
  34     VLOG(1) << "TryStartDiscovery !discovering_";
  35     return;
  36   }
  37
  38   if (!pending_) {
  39     VLOG(1) << "TryStartDiscovery !pending_";
  40     return;
  41   }
  42
  43   if (!central_manager_) {
  44     VLOG(1) << "TryStartDiscovery !central_manager_";
  45     return;
  46   }
  47
  48   if ([central_manager_ state] != CBCentralManagerStatePoweredOn) {
  49     VLOG(1) << "TryStartDiscovery != CBCentralManagerStatePoweredOn";
  50     return;
  51   }
  52
  53   // Converts the services UUIDs to a CoreBluetooth data structure.
  54   NSMutableArray* services = nil;
  55   if (!services_uuids_.empty()) {
  56     services = [NSMutableArray array];
  57     for (auto& service_uuid : services_uuids_) {
  58       NSString* uuidString =
  59           base::SysUTF8ToNSString(service_uuid.canonical_value().c_str());
  60       Class aClass = NSClassFromString(@"CBUUID");
  61       CBUUID* uuid = [aClass UUIDWithString:uuidString];
  62       [services addObject:uuid];
  63     }
  64   };
  65
  66   VLOG(1) << "TryStartDiscovery scanForPeripheralsWithServices";
  67   [central_manager_ scanForPeripheralsWithServices:services options:nil];
  68   pending_ = false;
  69 }
  70
  71 void BluetoothLowEnergyDiscoveryManagerMac::StopDiscovery() {
  72   VLOG(1) << "StopDiscovery";
  73   if (discovering_ && !pending_) {
  74     [central_manager_ stopScan];
  75   }
  76   discovering_ = false;
  77 }
  78
  79 void BluetoothLowEnergyDiscoveryManagerMac::SetCentralManager(
  80     CBCentralManager* central_manager) {
  81   central_manager_ = central_manager;
  82 }
  83
  84 void BluetoothLowEnergyDiscoveryManagerMac::DiscoveredPeripheral(
  85     CBPeripheral* peripheral,
  86     NSDictionary* advertisementData,
  87     int rssi) {
  88   VLOG(1) << "DiscoveredPeripheral";
  89   observer_->LowEnergyDeviceUpdated(peripheral, advertisementData, rssi);
  90 }
  91
  92 BluetoothLowEnergyDiscoveryManagerMac*
  93 BluetoothLowEnergyDiscoveryManagerMac::Create(Observer* observer) {
  94   return new BluetoothLowEnergyDiscoveryManagerMac(observer);
  95 }
  96
  97 BluetoothLowEnergyDiscoveryManagerMac::BluetoothLowEnergyDiscoveryManagerMac(
  98     Observer* observer)
  99     : observer_(observer) {
 100   DCHECK(BluetoothAdapterMac::IsLowEnergyAvailable());
 101   discovering_ = false;
 102 }
 103
 104 }  // namespace device