1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
// Copyright 2015 The Chromium Authors
// 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 <string>
#include <vector>
#include "base/android/jni_android.h"
#include "base/android/scoped_java_ref.h"
#include "base/memory/raw_ptr.h"
#include "device/bluetooth/bluetooth_remote_gatt_characteristic.h"
#include "device/bluetooth/bluetooth_remote_gatt_service.h"
namespace device {
class BluetoothAdapterAndroid;
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(
const BluetoothRemoteGattCharacteristicAndroid&) = delete;
BluetoothRemoteGattCharacteristicAndroid& operator=(
const BluetoothRemoteGattCharacteristicAndroid&) = delete;
~BluetoothRemoteGattCharacteristicAndroid() override;
// 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;
std::vector<BluetoothRemoteGattDescriptor*> GetDescriptorsByUUID(
const BluetoothUUID& uuid) const override;
void ReadRemoteCharacteristic(ValueCallback callback) override;
void WriteRemoteCharacteristic(base::span<const uint8_t> value,
WriteType write_type,
base::OnceClosure callback,
ErrorCallback error_callback) override;
void DeprecatedWriteRemoteCharacteristic(
base::span<const uint8_t> value,
base::OnceClosure callback,
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,
base::OnceClosure callback,
ErrorCallback error_callback) override;
void UnsubscribeFromNotifications(
BluetoothRemoteGattDescriptor* ccc_descriptor,
base::OnceClosure callback,
ErrorCallback error_callback) override;
private:
// Android API characteristic write type flags.
// https://developer.android.com/reference/android/bluetooth/BluetoothGattCharacteristic.html
enum class AndroidWriteType {
kNone = 0,
kNoResponse = 1 << 0,
kDefault = 1 << 1,
kSigned = 1 << 2,
};
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.
raw_ptr<BluetoothAdapterAndroid> adapter_;
raw_ptr<BluetoothRemoteGattServiceAndroid> service_;
// Java object
// org.chromium.device.bluetooth.ChromeBluetoothRemoteGattCharacteristic.
base::android::ScopedJavaGlobalRef<jobject> j_characteristic_;
// Adapter unique instance ID.
std::string instance_id_;
// ReadRemoteCharacteristic callback and pending state.
bool read_pending_ = false;
ValueCallback read_callback_;
// WriteRemoteCharacteristic callbacks and pending state.
bool write_pending_ = false;
base::OnceClosure write_callback_;
ErrorCallback write_error_callback_;
std::vector<uint8_t> value_;
};
} // namespace device
#endif // DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_CHARACTERISTIC_ANDROID_H_
|
