bluetooth: Browser-side implementation of getCharacteristic

content/browser/bluetooth/bluetooth_dispatcher_host.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_DISPATCHER_HOST_H_
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "content/common/bluetooth/bluetooth_error.h"
@@ skipping 39 matching lines @@
   void set_adapter(scoped_refptr<device::BluetoothAdapter> adapter);
 
   // IPC Handlers, see definitions in bluetooth_messages.h.
   void OnRequestDevice(int thread_id, int request_id);
   void OnConnectGATT(int thread_id, int request_id,
                      const std::string& device_instance_id);
   void OnGetPrimaryService(int thread_id,
                            int request_id,
                            const std::string& device_instance_id,
                            const std::string& service_uuid);
+  void OnGetCharacteristic(int thread_id,
+                           int request_id,
+                           const std::string& service_instance_id,
+                           const std::string& characteristic_uuid);
 
   // Callbacks for BluetoothAdapter::StartDiscoverySession.
   void OnDiscoverySessionStarted(
       int thread_id,
       int request_id,
       scoped_ptr<device::BluetoothDiscoverySession> discovery_session);
   void OnDiscoverySessionStartedError(int thread_id, int request_id);
 
   // Stop in progress discovery session.
   void StopDiscoverySession(
@@ skipping 18 matching lines @@
       device::BluetoothDevice::ConnectErrorCode error_code);
 
   // Callback for future BluetoothAdapter::ServicesDiscovered callback:
   // For now we just post a delayed task.
   // See: https://crbug.com/484504
   void OnServicesDiscovered(int thread_id,
                             int request_id,
                             const std::string& device_instance_id,
                             const std::string& service_uuid);
 
+  // Maps to get the object's parent based on it's instanceID

[Jeffrey Yasskin, 2015/06/02 22:12:29]

We could also make the renderer pass both a
service_id/characteristic_id/descriptor_id and device_id when it calls over to
the browser, which would allow service_ids to only be unique within a device,
but it may not be worth it.

[ortuno, 2015/06/03 20:27:22]

Hmm not sure how passing both a service_id and a device_id allows service_id to
be unique within a device. In general the identifiers are unique per adapter.

+  // Map of service_instance_id to device_instance_id.
+  std::map<std::string, std::string> service_to_device_;
+
   // Defines how long to scan for and how long to discover services for.
   int current_delay_time_;
 
   // A BluetoothAdapter instance representing an adapter of the system.
   scoped_refptr<device::BluetoothAdapter> adapter_;
 
   // Must be last member, see base/memory/weak_ptr.h documentation
   base::WeakPtrFactory<BluetoothDispatcherHost> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_DISPATCHER_HOST_H_