| // Copyright 2015 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 DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_CHARACTERISTIC_ANDROID_H_ |
| #define DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_CHARACTERISTIC_ANDROID_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <unordered_map> |
| |
| #include "base/android/jni_android.h" |
| #include "base/android/scoped_java_ref.h" |
| #include "base/macros.h" |
| #include "device/bluetooth/bluetooth_remote_gatt_characteristic.h" |
| #include "device/bluetooth/bluetooth_remote_gatt_service.h" |
| |
| namespace device { |
| |
| class BluetoothAdapterAndroid; |
| class BluetoothRemoteGattDescriptorAndroid; |
| class BluetoothRemoteGattServiceAndroid; |
| |
| // BluetoothRemoteGattCharacteristicAndroid along with its owned Java class |
| // org.chromium.device.bluetooth.ChromeBluetoothRemoteGattCharacteristic |
| // implement BluetootGattCharacteristic. |
| class DEVICE_BLUETOOTH_EXPORT BluetoothRemoteGattCharacteristicAndroid |
| : public BluetoothRemoteGattCharacteristic { |
| public: |
| // Create a BluetoothRemoteGattCharacteristicAndroid instance and associated |
| // Java |
| // ChromeBluetoothRemoteGattCharacteristic using the provided |
| // |bluetooth_gatt_characteristic_wrapper|. |
| // |
| // The ChromeBluetoothRemoteGattCharacteristic instance will hold a Java |
| // reference |
| // to |bluetooth_gatt_characteristic_wrapper|. |
| static std::unique_ptr<BluetoothRemoteGattCharacteristicAndroid> Create( |
| BluetoothAdapterAndroid* adapter, |
| BluetoothRemoteGattServiceAndroid* service, |
| const std::string& instance_id, |
| const base::android::JavaRef< |
| jobject>& /* BluetoothGattCharacteristicWrapper */ |
| bluetooth_gatt_characteristic_wrapper, |
| const base::android::JavaRef< |
| jobject>& /* ChromeBluetoothDevice */ chrome_bluetooth_device); |
| |
| ~BluetoothRemoteGattCharacteristicAndroid() override; |
| |
| // Register C++ methods exposed to Java using JNI. |
| static bool RegisterJNI(JNIEnv* env); |
| |
| // Returns the associated ChromeBluetoothRemoteGattCharacteristic Java object. |
| base::android::ScopedJavaLocalRef<jobject> GetJavaObject(); |
| |
| // BluetoothRemoteGattCharacteristic interface: |
| std::string GetIdentifier() const override; |
| BluetoothUUID GetUUID() const override; |
| const std::vector<uint8_t>& GetValue() const override; |
| BluetoothRemoteGattService* GetService() const override; |
| Properties GetProperties() const override; |
| Permissions GetPermissions() const override; |
| std::vector<BluetoothRemoteGattDescriptor*> GetDescriptors() const override; |
| BluetoothRemoteGattDescriptor* GetDescriptor( |
| const std::string& identifier) const override; |
| void ReadRemoteCharacteristic(const ValueCallback& callback, |
| const ErrorCallback& error_callback) override; |
| void WriteRemoteCharacteristic(const std::vector<uint8_t>& value, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override; |
| |
| // Called when value changed event occurs. |
| void OnChanged(JNIEnv* env, |
| const base::android::JavaParamRef<jobject>& jcaller, |
| const base::android::JavaParamRef<jbyteArray>& value); |
| |
| // Called when Read operation completes. |
| void OnRead(JNIEnv* env, |
| const base::android::JavaParamRef<jobject>& jcaller, |
| int32_t status, |
| const base::android::JavaParamRef<jbyteArray>& value); |
| |
| // Called when Write operation completes. |
| void OnWrite(JNIEnv* env, |
| const base::android::JavaParamRef<jobject>& jcaller, |
| int32_t status); |
| |
| // Creates a Bluetooth GATT descriptor object and adds it to |descriptors_|, |
| // DCHECKing that it has not already been created. |
| void CreateGattRemoteDescriptor( |
| JNIEnv* env, |
| const base::android::JavaParamRef<jobject>& caller, |
| const base::android::JavaParamRef<jstring>& instanceId, |
| const base::android::JavaParamRef< |
| jobject>& /* BluetoothGattDescriptorWrapper */ |
| bluetooth_gatt_descriptor_wrapper, |
| const base::android::JavaParamRef< |
| jobject>& /* ChromeBluetoothCharacteristic */ |
| chrome_bluetooth_characteristic); |
| |
| protected: |
| void SubscribeToNotifications(BluetoothRemoteGattDescriptor* ccc_descriptor, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override; |
| void UnsubscribeFromNotifications( |
| BluetoothRemoteGattDescriptor* ccc_descriptor, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override; |
| |
| private: |
| BluetoothRemoteGattCharacteristicAndroid( |
| BluetoothAdapterAndroid* adapter, |
| BluetoothRemoteGattServiceAndroid* service, |
| const std::string& instance_id); |
| |
| // Populates |descriptors_| from Java objects if necessary. |
| void EnsureDescriptorsCreated() const; |
| |
| // The adapter and service associated with this characteristic. It's ok to |
| // store a raw pointers here since they indirectly own this instance. |
| BluetoothAdapterAndroid* adapter_; |
| BluetoothRemoteGattServiceAndroid* service_; |
| |
| // Java object |
| // org.chromium.device.bluetooth.ChromeBluetoothRemoteGattCharacteristic. |
| base::android::ScopedJavaGlobalRef<jobject> j_characteristic_; |
| |
| // Adapter unique instance ID. |
| std::string instance_id_; |
| |
| // ReadRemoteCharacteristic callbacks and pending state. |
| bool read_pending_ = false; |
| ValueCallback read_callback_; |
| ErrorCallback read_error_callback_; |
| |
| // WriteRemoteCharacteristic callbacks and pending state. |
| bool write_pending_ = false; |
| base::Closure write_callback_; |
| ErrorCallback write_error_callback_; |
| |
| std::vector<uint8_t> value_; |
| |
| // Map of descriptors, keyed by descriptor identifier. |
| std::unordered_map<std::string, |
| std::unique_ptr<BluetoothRemoteGattDescriptorAndroid>> |
| descriptors_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BluetoothRemoteGattCharacteristicAndroid); |
| }; |
| |
| } // namespace device |
| |
| #endif // DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_CHARACTERISTIC_ANDROID_H_ |