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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 #include "chrome/browser/chromeos/bluetooth/bluetooth_adapter_chromeos.h" | |
6 | |
7 #include <string> | |
8 | |
9 #include "base/bind.h" | |
10 #include "base/logging.h" | |
11 #include "base/stl_util.h" | |
12 #include "base/values.h" | |
13 #include "chrome/browser/chromeos/bluetooth/bluetooth_device_chromeos.h" | |
14 #include "chromeos/dbus/bluetooth_adapter_client.h" | |
15 #include "chromeos/dbus/bluetooth_device_client.h" | |
16 #include "chromeos/dbus/bluetooth_manager_client.h" | |
17 #include "chromeos/dbus/bluetooth_out_of_band_client.h" | |
18 #include "chromeos/dbus/bluetooth_out_of_band_pairing_data.h" | |
19 #include "chromeos/dbus/dbus_thread_manager.h" | |
20 #include "dbus/object_path.h" | |
21 | |
22 namespace chromeos { | |
23 | |
24 BluetoothAdapterChromeOs::BluetoothAdapterChromeOs() : track_default_(false), | |
25 powered_(false), | |
26 discovering_(false), | |
27 weak_ptr_factory_(this) { | |
28 DBusThreadManager::Get()->GetBluetoothManagerClient()-> | |
29 AddObserver(this); | |
30 DBusThreadManager::Get()->GetBluetoothAdapterClient()-> | |
31 AddObserver(this); | |
32 DBusThreadManager::Get()->GetBluetoothDeviceClient()-> | |
33 AddObserver(this); | |
34 } | |
35 | |
36 BluetoothAdapterChromeOs::~BluetoothAdapterChromeOs() { | |
37 DBusThreadManager::Get()->GetBluetoothDeviceClient()-> | |
38 RemoveObserver(this); | |
39 DBusThreadManager::Get()->GetBluetoothAdapterClient()-> | |
40 RemoveObserver(this); | |
41 DBusThreadManager::Get()->GetBluetoothManagerClient()-> | |
42 RemoveObserver(this); | |
43 | |
44 STLDeleteValues(&devices_); | |
45 } | |
46 | |
47 void BluetoothAdapterChromeOs::AddObserver( | |
48 BluetoothAdapter::Observer* observer) { | |
49 DCHECK(observer); | |
50 observers_.AddObserver(observer); | |
51 } | |
52 | |
53 void BluetoothAdapterChromeOs::RemoveObserver( | |
54 BluetoothAdapter::Observer* observer) { | |
55 DCHECK(observer); | |
56 observers_.RemoveObserver(observer); | |
57 } | |
58 | |
59 bool BluetoothAdapterChromeOs::IsPresent() const { | |
60 return !object_path_.value().empty() && !address_.empty(); | |
61 } | |
62 | |
63 bool BluetoothAdapterChromeOs::IsPowered() const { | |
64 return powered_; | |
65 } | |
66 | |
67 void BluetoothAdapterChromeOs::SetPowered(bool powered, | |
68 const base::Closure& callback, | |
69 const ErrorCallback& error_callback) { | |
70 DBusThreadManager::Get()->GetBluetoothAdapterClient()-> | |
71 GetProperties(object_path_)->powered.Set( | |
72 powered, | |
73 base::Bind(&BluetoothAdapterChromeOs::OnSetPowered, | |
74 weak_ptr_factory_.GetWeakPtr(), | |
75 callback, | |
76 error_callback)); | |
77 } | |
78 | |
79 bool BluetoothAdapterChromeOs::IsDiscovering() const { | |
80 return discovering_; | |
81 } | |
82 | |
83 void BluetoothAdapterChromeOs::SetDiscovering( | |
84 bool discovering, | |
85 const base::Closure& callback, | |
86 const ErrorCallback& error_callback) { | |
87 if (discovering) { | |
88 DBusThreadManager::Get()->GetBluetoothAdapterClient()-> | |
89 StartDiscovery(object_path_, | |
90 base::Bind(&BluetoothAdapterChromeOs::OnStartDiscovery, | |
91 weak_ptr_factory_.GetWeakPtr(), | |
92 callback, | |
93 error_callback)); | |
94 } else { | |
95 DBusThreadManager::Get()->GetBluetoothAdapterClient()-> | |
96 StopDiscovery(object_path_, | |
97 base::Bind(&BluetoothAdapterChromeOs::OnStopDiscovery, | |
98 weak_ptr_factory_.GetWeakPtr(), | |
99 callback, | |
100 error_callback)); | |
101 } | |
102 } | |
103 | |
104 BluetoothAdapter::ConstDeviceList BluetoothAdapterChromeOs::GetDevices() const { | |
105 ConstDeviceList devices; | |
106 for (DevicesMap::const_iterator iter = devices_.begin(); | |
107 iter != devices_.end(); | |
108 ++iter) | |
109 devices.push_back(iter->second); | |
110 | |
111 return devices; | |
112 } | |
113 | |
114 BluetoothDevice* BluetoothAdapterChromeOs::GetDevice( | |
115 const std::string& address) { | |
116 return const_cast<BluetoothDevice *>( | |
117 const_cast<const BluetoothAdapterChromeOs *>(this)->GetDevice(address)); | |
118 } | |
119 | |
120 const BluetoothDevice* BluetoothAdapterChromeOs::GetDevice( | |
121 const std::string& address) const { | |
122 DevicesMap::const_iterator iter = devices_.find(address); | |
123 if (iter != devices_.end()) | |
124 return iter->second; | |
125 | |
126 return NULL; | |
127 } | |
128 | |
129 void BluetoothAdapterChromeOs::ReadLocalOutOfBandPairingData( | |
130 const BluetoothOutOfBandPairingDataCallback& callback, | |
131 const ErrorCallback& error_callback) { | |
132 DBusThreadManager::Get()->GetBluetoothOutOfBandClient()-> | |
133 ReadLocalData(object_path_, | |
134 base::Bind(&BluetoothAdapterChromeOs::OnReadLocalData, | |
135 weak_ptr_factory_.GetWeakPtr(), | |
136 callback, | |
137 error_callback)); | |
138 } | |
139 | |
140 void BluetoothAdapterChromeOs::TrackDefaultAdapter() { | |
141 DVLOG(1) << "Tracking default adapter"; | |
142 track_default_ = true; | |
143 DBusThreadManager::Get()->GetBluetoothManagerClient()-> | |
144 DefaultAdapter(base::Bind(&BluetoothAdapterChromeOs::AdapterCallback, | |
145 weak_ptr_factory_.GetWeakPtr())); | |
146 } | |
147 | |
148 void BluetoothAdapterChromeOs::FindAdapter(const std::string& address) { | |
149 DVLOG(1) << "Using adapter " << address; | |
150 track_default_ = false; | |
151 DBusThreadManager::Get()->GetBluetoothManagerClient()-> | |
152 FindAdapter(address, | |
153 base::Bind(&BluetoothAdapterChromeOs::AdapterCallback, | |
154 weak_ptr_factory_.GetWeakPtr())); | |
155 } | |
156 | |
157 void BluetoothAdapterChromeOs::AdapterCallback( | |
158 const dbus::ObjectPath& adapter_path, | |
159 bool success) { | |
160 if (success) { | |
161 ChangeAdapter(adapter_path); | |
162 } else if (!object_path_.value().empty()) { | |
163 RemoveAdapter(); | |
164 } | |
165 } | |
166 | |
167 void BluetoothAdapterChromeOs::DefaultAdapterChanged( | |
168 const dbus::ObjectPath& adapter_path) { | |
169 if (track_default_) | |
170 ChangeAdapter(adapter_path); | |
171 } | |
172 | |
173 void BluetoothAdapterChromeOs::AdapterRemoved( | |
174 const dbus::ObjectPath& adapter_path) { | |
175 if (adapter_path == object_path_) | |
176 RemoveAdapter(); | |
177 } | |
178 | |
179 void BluetoothAdapterChromeOs::ChangeAdapter( | |
180 const dbus::ObjectPath& adapter_path) { | |
181 if (object_path_.value().empty()) { | |
182 DVLOG(1) << "Adapter path initialized to " << adapter_path.value(); | |
183 } else if (object_path_.value() != adapter_path.value()) { | |
184 DVLOG(1) << "Adapter path changed from " << object_path_.value() | |
185 << " to " << adapter_path.value(); | |
186 | |
187 RemoveAdapter(); | |
188 } else { | |
189 DVLOG(1) << "Adapter address updated"; | |
190 } | |
191 | |
192 object_path_ = adapter_path; | |
193 | |
194 // Update properties to their new values. | |
195 BluetoothAdapterClient::Properties* properties = | |
196 DBusThreadManager::Get()->GetBluetoothAdapterClient()-> | |
197 GetProperties(object_path_); | |
198 | |
199 address_ = properties->address.value(); | |
200 name_ = properties->name.value(); | |
201 | |
202 // Delay announcing a new adapter until we have an address. | |
203 if (address_.empty()) { | |
204 DVLOG(1) << "Adapter address not yet known"; | |
205 return; | |
206 } | |
207 | |
208 PoweredChanged(properties->powered.value()); | |
209 DiscoveringChanged(properties->discovering.value()); | |
210 DevicesChanged(properties->devices.value()); | |
211 | |
212 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
213 AdapterPresentChanged(this, true)); | |
214 } | |
215 | |
216 void BluetoothAdapterChromeOs::RemoveAdapter() { | |
217 const bool adapter_was_present = IsPresent(); | |
218 | |
219 DVLOG(1) << "Adapter lost."; | |
220 PoweredChanged(false); | |
221 DiscoveringChanged(false); | |
222 ClearDevices(); | |
223 | |
224 object_path_ = dbus::ObjectPath(""); | |
225 address_.clear(); | |
226 name_.clear(); | |
227 | |
228 if (adapter_was_present) | |
229 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
230 AdapterPresentChanged(this, false)); | |
231 } | |
232 | |
233 void BluetoothAdapterChromeOs::OnSetPowered(const base::Closure& callback, | |
234 const ErrorCallback& error_callback, | |
235 bool success) { | |
236 if (success) | |
237 callback.Run(); | |
238 else | |
239 error_callback.Run(); | |
240 } | |
241 | |
242 void BluetoothAdapterChromeOs::PoweredChanged(bool powered) { | |
243 if (powered == powered_) | |
244 return; | |
245 | |
246 powered_ = powered; | |
247 | |
248 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
249 AdapterPoweredChanged(this, powered_)); | |
250 } | |
251 | |
252 void BluetoothAdapterChromeOs::OnStartDiscovery( | |
253 const base::Closure& callback, | |
254 const ErrorCallback& error_callback, | |
255 const dbus::ObjectPath& adapter_path, | |
256 bool success) { | |
257 if (success) { | |
258 DVLOG(1) << object_path_.value() << ": started discovery."; | |
259 | |
260 // Clear devices found in previous discovery attempts | |
261 ClearDiscoveredDevices(); | |
262 callback.Run(); | |
263 } else { | |
264 // TODO(keybuk): in future, don't run the callback if the error was just | |
265 // that we were already discovering. | |
266 error_callback.Run(); | |
267 } | |
268 } | |
269 | |
270 void BluetoothAdapterChromeOs::OnStopDiscovery( | |
271 const base::Closure& callback, | |
272 const ErrorCallback& error_callback, | |
273 const dbus::ObjectPath& adapter_path, | |
274 bool success) { | |
275 if (success) { | |
276 DVLOG(1) << object_path_.value() << ": stopped discovery."; | |
277 callback.Run(); | |
278 // Leave found devices available for perusing. | |
279 } else { | |
280 // TODO(keybuk): in future, don't run the callback if the error was just | |
281 // that we weren't discovering. | |
282 error_callback.Run(); | |
283 } | |
284 } | |
285 | |
286 void BluetoothAdapterChromeOs::DiscoveringChanged(bool discovering) { | |
287 if (discovering == discovering_) | |
288 return; | |
289 | |
290 discovering_ = discovering; | |
291 | |
292 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
293 AdapterDiscoveringChanged(this, discovering_)); | |
294 } | |
295 | |
296 void BluetoothAdapterChromeOs::OnReadLocalData( | |
297 const BluetoothOutOfBandPairingDataCallback& callback, | |
298 const ErrorCallback& error_callback, | |
299 const BluetoothOutOfBandPairingData& data, | |
300 bool success) { | |
301 if (success) | |
302 callback.Run(data); | |
303 else | |
304 error_callback.Run(); | |
305 } | |
306 | |
307 void BluetoothAdapterChromeOs::AdapterPropertyChanged( | |
308 const dbus::ObjectPath& adapter_path, | |
309 const std::string& property_name) { | |
310 if (adapter_path != object_path_) | |
311 return; | |
312 | |
313 BluetoothAdapterClient::Properties* properties = | |
314 DBusThreadManager::Get()->GetBluetoothAdapterClient()-> | |
315 GetProperties(object_path_); | |
316 | |
317 if (property_name == properties->address.name()) { | |
318 ChangeAdapter(object_path_); | |
319 | |
320 } else if (!address_.empty()) { | |
321 if (property_name == properties->powered.name()) { | |
322 PoweredChanged(properties->powered.value()); | |
323 | |
324 } else if (property_name == properties->discovering.name()) { | |
325 DiscoveringChanged(properties->discovering.value()); | |
326 | |
327 } else if (property_name == properties->devices.name()) { | |
328 DevicesChanged(properties->devices.value()); | |
329 | |
330 } else if (property_name == properties->name.name()) { | |
331 name_ = properties->name.value(); | |
332 | |
333 } | |
334 } | |
335 } | |
336 | |
337 void BluetoothAdapterChromeOs::DevicePropertyChanged( | |
338 const dbus::ObjectPath& device_path, | |
339 const std::string& property_name) { | |
340 UpdateDevice(device_path); | |
341 } | |
342 | |
343 void BluetoothAdapterChromeOs::UpdateDevice( | |
344 const dbus::ObjectPath& device_path) { | |
345 BluetoothDeviceClient::Properties* properties = | |
346 DBusThreadManager::Get()->GetBluetoothDeviceClient()-> | |
347 GetProperties(device_path); | |
348 | |
349 // When we first see a device, we may not know the address yet and need to | |
350 // wait for the DevicePropertyChanged signal before adding the device. | |
351 const std::string address = properties->address.value(); | |
352 if (address.empty()) | |
353 return; | |
354 | |
355 // The device may be already known to us, either because this is an update | |
356 // to properties, or the device going from discovered to connected and | |
357 // pairing gaining an object path in the process. In any case, we want | |
358 // to update the existing object, not create a new one. | |
359 DevicesMap::iterator iter = devices_.find(address); | |
360 BluetoothDeviceChromeOs* device; | |
361 const bool update_device = (iter != devices_.end()); | |
362 if (update_device) { | |
363 device = iter->second; | |
364 } else { | |
365 device = BluetoothDeviceChromeOs::Create(this); | |
366 devices_[address] = device; | |
367 } | |
368 | |
369 const bool was_paired = device->IsPaired(); | |
370 if (!was_paired) { | |
371 DVLOG(1) << "Assigned object path " << device_path.value() << " to device " | |
372 << address; | |
373 device->SetObjectPath(device_path); | |
374 } | |
375 device->Update(properties, true); | |
376 | |
377 if (update_device) { | |
378 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
379 DeviceChanged(this, device)); | |
380 } else { | |
381 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
382 DeviceAdded(this, device)); | |
383 } | |
384 } | |
385 | |
386 void BluetoothAdapterChromeOs::ClearDevices() { | |
387 DevicesMap replace; | |
388 devices_.swap(replace); | |
389 for (DevicesMap::iterator iter = replace.begin(); | |
390 iter != replace.end(); ++iter) { | |
391 BluetoothDeviceChromeOs* device = iter->second; | |
392 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
393 DeviceRemoved(this, device)); | |
394 | |
395 delete device; | |
396 } | |
397 } | |
398 | |
399 void BluetoothAdapterChromeOs::DeviceCreated( | |
400 const dbus::ObjectPath& adapter_path, | |
401 const dbus::ObjectPath& device_path) { | |
402 if (adapter_path != object_path_) | |
403 return; | |
404 | |
405 UpdateDevice(device_path); | |
406 } | |
407 | |
408 void BluetoothAdapterChromeOs::DeviceRemoved( | |
409 const dbus::ObjectPath& adapter_path, | |
410 const dbus::ObjectPath& device_path) { | |
411 if (adapter_path != object_path_) | |
412 return; | |
413 | |
414 DevicesMap::iterator iter = devices_.begin(); | |
415 while (iter != devices_.end()) { | |
416 BluetoothDeviceChromeOs* device = iter->second; | |
417 DevicesMap::iterator temp = iter; | |
418 ++iter; | |
419 | |
420 if (device->object_path_ != device_path) | |
421 continue; | |
422 | |
423 // DeviceRemoved can also be called to indicate a device that is visible | |
424 // during discovery has disconnected, but it is still visible to the | |
425 // adapter, so don't remove in that case and only clear the object path. | |
426 if (!device->IsVisible()) { | |
427 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
428 DeviceRemoved(this, device)); | |
429 | |
430 DVLOG(1) << "Removed device " << device->address(); | |
431 | |
432 delete device; | |
433 devices_.erase(temp); | |
434 } else { | |
435 DVLOG(1) << "Removed object path from device " << device->address(); | |
436 device->RemoveObjectPath(); | |
437 | |
438 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
439 DeviceChanged(this, device)); | |
440 } | |
441 } | |
442 } | |
443 | |
444 void BluetoothAdapterChromeOs::DevicesChanged( | |
445 const std::vector<dbus::ObjectPath>& devices) { | |
446 for (std::vector<dbus::ObjectPath>::const_iterator iter = | |
447 devices.begin(); iter != devices.end(); ++iter) | |
448 UpdateDevice(*iter); | |
449 } | |
450 | |
451 void BluetoothAdapterChromeOs::ClearDiscoveredDevices() { | |
452 DevicesMap::iterator iter = devices_.begin(); | |
453 while (iter != devices_.end()) { | |
454 BluetoothDeviceChromeOs* device = iter->second; | |
455 DevicesMap::iterator temp = iter; | |
456 ++iter; | |
457 | |
458 if (!device->IsPaired()) { | |
459 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
460 DeviceRemoved(this, device)); | |
461 | |
462 delete device; | |
463 devices_.erase(temp); | |
464 } | |
465 } | |
466 } | |
467 | |
468 void BluetoothAdapterChromeOs::DeviceFound( | |
469 const dbus::ObjectPath& adapter_path, | |
470 const std::string& address, | |
471 const BluetoothDeviceClient::Properties& properties) { | |
472 if (adapter_path != object_path_) | |
473 return; | |
474 | |
475 // DeviceFound can also be called to indicate that a device we've | |
476 // paired with is now visible to the adapter during discovery, in which | |
477 // case we want to update the existing object, not create a new one. | |
478 BluetoothDeviceChromeOs* device; | |
479 DevicesMap::iterator iter = devices_.find(address); | |
480 const bool update_device = (iter != devices_.end()); | |
481 if (update_device) { | |
482 device = iter->second; | |
483 } else { | |
484 device = BluetoothDeviceChromeOs::Create(this); | |
485 devices_[address] = device; | |
486 } | |
487 | |
488 DVLOG(1) << "Device " << address << " is visible to the adapter"; | |
489 device->SetVisible(true); | |
490 device->Update(&properties, false); | |
491 | |
492 if (update_device) { | |
493 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
494 DeviceChanged(this, device)); | |
495 } else { | |
496 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
497 DeviceAdded(this, device)); | |
498 } | |
499 } | |
500 | |
501 void BluetoothAdapterChromeOs::DeviceDisappeared( | |
502 const dbus::ObjectPath& adapter_path, | |
503 const std::string& address) { | |
504 if (adapter_path != object_path_) | |
505 return; | |
506 | |
507 DevicesMap::iterator iter = devices_.find(address); | |
508 if (iter == devices_.end()) | |
509 return; | |
510 | |
511 BluetoothDeviceChromeOs* device = iter->second; | |
512 | |
513 // DeviceDisappeared can also be called to indicate that a device we've | |
514 // paired with is no longer visible to the adapter, so don't remove | |
515 // in that case and only clear the visible flag. | |
516 if (!device->IsPaired()) { | |
517 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
518 DeviceRemoved(this, device)); | |
519 | |
520 DVLOG(1) << "Discovered device " << device->address() | |
521 << " is no longer visible to the adapter"; | |
522 | |
523 delete device; | |
524 devices_.erase(iter); | |
525 } else { | |
526 DVLOG(1) << "Paired device " << device->address() | |
527 << " is no longer visible to the adapter"; | |
528 device->SetVisible(false); | |
529 | |
530 FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_, | |
531 DeviceChanged(this, device)); | |
532 } | |
533 } | |
534 | |
535 } // namespace chromeos | |
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