Implement WebBluetooth descriptor.readValue()

content/browser/bluetooth/web_bluetooth_service_impl.h

 // Copyright 2016 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_WEB_BLUETOOTH_SERVICE_IMPL_H_
 #define CONTENT_BROWSER_BLUETOOTH_WEB_BLUETOOTH_SERVICE_IMPL_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 115 matching lines @@
       const std::string& characteristic_instance_id,
       const RemoteCharacteristicStartNotificationsCallback& callback) override;
   void RemoteCharacteristicStopNotifications(
       const std::string& characteristic_instance_id,
       const RemoteCharacteristicStopNotificationsCallback& callback) override;
   void RemoteCharacteristicGetDescriptors(
       const std::string& service_instance_id,
       blink::mojom::WebBluetoothGATTQueryQuantity quantity,
       const base::Optional<device::BluetoothUUID>& characteristics_uuid,
       const RemoteCharacteristicGetDescriptorsCallback& callback) override;
+  void RemoteDescriptorReadValue(
+      const std::string& characteristic_instance_id,
+      const RemoteDescriptorReadValueCallback& callback) override;
 
   void RequestDeviceImpl(
       blink::mojom::WebBluetoothRequestDeviceOptionsPtr options,
       const RequestDeviceCallback& callback,
       device::BluetoothAdapter* adapter);
 
   // Should only be run after the services have been discovered for
   // |device_address|.
   void RemoteServerGetPrimaryServicesImpl(
       const WebBluetoothDeviceId& device_id,
@@ skipping 42 matching lines @@
       std::unique_ptr<device::BluetoothGattNotifySession> notify_session);
   void OnStartNotifySessionFailed(
       const RemoteCharacteristicStartNotificationsCallback& callback,
       device::BluetoothRemoteGattService::GattErrorCode error_code);
 
   // Callback for BluetoothGattNotifySession::Stop.
   void OnStopNotifySessionComplete(
       const std::string& characteristic_instance_id,
       const RemoteCharacteristicStopNotificationsCallback& callback);
 
+  // Callbacks for BluetoothRemoteGattDescriptor::ReadRemoteDescriptor.
+  void OnDescriptorReadValueSuccess(
+      const RemoteDescriptorReadValueCallback& callback,
+      const std::vector<uint8_t>& value);
+  void OnDescriptorReadValueFailed(
+      const RemoteDescriptorReadValueCallback& callback,
+      device::BluetoothRemoteGattService::GattErrorCode error_code);
+
   // Functions to query the platform cache for the bluetooth object.
   // result.outcome == CacheQueryOutcome::SUCCESS if the object was found in the
   // cache. Otherwise result.outcome that can used to record the outcome and
   // result.error will contain the error that should be sent to the renderer.
   // One of the possible outcomes is BAD_RENDERER. In this case we crash the
   // renderer, record the reason and close the pipe, so it's safe to drop
   // any callbacks.
 
   // Queries the platform cache for a Device with |device_id| for |origin|.
   // Fills in the |outcome| field and the |device| field if successful.
   CacheQueryResult QueryCacheForDevice(const WebBluetoothDeviceId& device_id);
 
   // Queries the platform cache for a Service with |service_instance_id|. Fills
   // in the |outcome| field, and |device| and |service| fields if successful.
   CacheQueryResult QueryCacheForService(const std::string& service_instance_id);
 
   // Queries the platform cache for a characteristic with
   // |characteristic_instance_id|. Fills in the |outcome| field, and |device|,
   // |service| and |characteristic| fields if successful.
   CacheQueryResult QueryCacheForCharacteristic(
       const std::string& characteristic_instance_id);
 
+  // Queries the platform cache for a descriptor with |descriptor_instance_id|.
+  // Fills in the |outcome| field, and |device|, |service|, |characteristic|,
+  // |descriptor| fields if successful.
+  CacheQueryResult QueryCacheForDescriptor(
+      const std::string& descriptor_instance_id);
+
   RenderProcessHost* GetRenderProcessHost();
   device::BluetoothAdapter* GetAdapter();
   url::Origin GetOrigin();
 
   // Clears all state (maps, sets, etc).
   void ClearState();
 
   // Used to open a BluetoothChooser and start a device discovery session.
   std::unique_ptr<BluetoothDeviceChooserController> device_chooser_controller_;
 
@@ skipping 31 matching lines @@
   mojo::Binding<blink::mojom::WebBluetoothService> binding_;
 
   base::WeakPtrFactory<WebBluetoothServiceImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebBluetoothServiceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BLUETOOTH_WEB_BLUETOOTH_SERVICE_IMPL_H_