1// Copyright (C) 2016 The Qt Company Ltd.
2// Copyright (C) 2014 Denis Shienkov <denis.shienkov@gmail.com>
3// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
4
5#ifndef QBLUETOOTHDEVICEDISCOVERYAGENT_P_H
6#define QBLUETOOTHDEVICEDISCOVERYAGENT_P_H
7
8//
9// W A R N I N G
10// -------------
11//
12// This file is not part of the Qt API. It exists purely as an
13// implementation detail. This header file may change from version to
14// version without notice, or even be removed.
15//
16// We mean it.
17//
18
19#include "qbluetoothdevicediscoveryagent.h"
20#ifdef QT_ANDROID_BLUETOOTH
21#include <QtCore/QJniObject>
22#include "android/devicediscoverybroadcastreceiver_p.h"
23#include <QtCore/QTimer>
24#endif
25
26#ifdef Q_OS_DARWIN
27#include "darwin/btdelegates_p.h"
28#include "darwin/btraii_p.h"
29#endif // Q_OS_DARWIN
30
31#include <QtCore/QVariantMap>
32
33#include <QtBluetooth/QBluetoothAddress>
34#include <QtBluetooth/QBluetoothLocalDevice>
35
36#if QT_CONFIG(bluez)
37#include "bluez/bluez5_helper_p.h"
38
39namespace QtBluetoothPrivate {
40
41class OrgBluezManagerInterface;
42class OrgBluezAdapterInterface;
43class OrgFreedesktopDBusObjectManagerInterface;
44class OrgFreedesktopDBusPropertiesInterface;
45class OrgBluezAdapter1Interface;
46class OrgBluezDevice1Interface;
47
48} // namespace QtBluetoothPrivate
49
50QT_BEGIN_NAMESPACE
51class QDBusVariant;
52QT_END_NAMESPACE
53#endif
54
55#ifdef QT_WINRT_BLUETOOTH
56#include <QtCore/QPointer>
57#include <QtCore/QTimer>
58
59using ManufacturerData = QHash<quint16, QByteArray>;
60using ServiceData = QHash<QBluetoothUuid, QByteArray>;
61QT_DECL_METATYPE_EXTERN(ManufacturerData, Q_BLUETOOTH_EXPORT)
62QT_DECL_METATYPE_EXTERN(ServiceData, Q_BLUETOOTH_EXPORT)
63#endif
64
65QT_BEGIN_NAMESPACE
66
67#ifdef QT_WINRT_BLUETOOTH
68class QWinRTBluetoothDeviceDiscoveryWorker;
69#endif
70
71class QBluetoothDeviceDiscoveryAgentPrivate
72#if defined(QT_ANDROID_BLUETOOTH) || defined(QT_WINRT_BLUETOOTH) \
73 || defined(Q_OS_DARWIN)
74 : public QObject
75#if defined(Q_OS_MACOS)
76 , public DarwinBluetooth::DeviceInquiryDelegate
77#endif // Q_OS_MACOS
78{
79 Q_OBJECT
80#else // BlueZ
81{
82#endif
83 Q_DECLARE_PUBLIC(QBluetoothDeviceDiscoveryAgent)
84public:
85 QBluetoothDeviceDiscoveryAgentPrivate(
86 const QBluetoothAddress &deviceAdapter,
87 QBluetoothDeviceDiscoveryAgent *parent);
88 ~QBluetoothDeviceDiscoveryAgentPrivate();
89
90 void start(QBluetoothDeviceDiscoveryAgent::DiscoveryMethods methods);
91 void stop();
92 bool isActive() const;
93
94#if QT_CONFIG(bluez)
95 void _q_InterfacesAdded(const QDBusObjectPath &object_path,
96 InterfaceList interfaces_and_properties);
97 void _q_discoveryFinished();
98 void _q_discoveryInterrupted(const QString &path);
99 void _q_PropertiesChanged(const QString &interface,
100 const QString &path,
101 const QVariantMap &changed_properties,
102 const QStringList &invalidated_properties);
103#endif
104
105private:
106 QList<QBluetoothDeviceInfo> discoveredDevices;
107
108 QBluetoothDeviceDiscoveryAgent::Error lastError = QBluetoothDeviceDiscoveryAgent::NoError;
109 QString errorString;
110 QBluetoothAddress adapterAddress;
111
112#ifdef QT_ANDROID_BLUETOOTH
113private slots:
114 void processSdpDiscoveryFinished();
115 void processDiscoveredDevices(const QBluetoothDeviceInfo &info, bool isLeResult);
116 friend void QtBluetoothLE_leScanResult(JNIEnv *, jobject, jlong, jobject);
117 void stopLowEnergyScan();
118
119private:
120 void startLowEnergyScan();
121 void classicDiscoveryStartFail();
122 bool setErrorIfPowerOff();
123
124 DeviceDiscoveryBroadcastReceiver *receiver = nullptr;
125 short m_active;
126 QJniObject adapter;
127 QJniObject leScanner;
128 QTimer *leScanTimeout = nullptr;
129 QTimer *deviceDiscoveryStartTimeout = nullptr;
130 short deviceDiscoveryStartAttemptsLeft;
131
132 bool pendingCancel = false;
133 bool pendingStart = false;
134#elif QT_CONFIG(bluez)
135 bool pendingCancel = false;
136 bool pendingStart = false;
137 QtBluetoothPrivate::OrgFreedesktopDBusObjectManagerInterface *manager = nullptr;
138 QtBluetoothPrivate::OrgBluezAdapter1Interface *adapter = nullptr;
139 QTimer *discoveryTimer = nullptr;
140 QList<QtBluetoothPrivate::OrgFreedesktopDBusPropertiesInterface *> propertyMonitors;
141
142 void deviceFound(const QString &devicePath, const QVariantMap &properties);
143
144 QMap<QString, QVariantMap> devicesProperties;
145#endif
146
147#ifdef QT_WINRT_BLUETOOTH
148private slots:
149 void registerDevice(const QBluetoothDeviceInfo &info);
150 void updateDeviceData(const QBluetoothAddress &address, QBluetoothDeviceInfo::Fields fields,
151 qint16 rssi, ManufacturerData manufacturerData, ServiceData serviceData);
152 void onErrorOccured(QBluetoothDeviceDiscoveryAgent::Error e);
153 void onScanFinished();
154
155private:
156 void disconnectAndClearWorker();
157 std::shared_ptr<QWinRTBluetoothDeviceDiscoveryWorker> worker = nullptr;
158#endif
159
160#ifdef Q_OS_DARWIN
161
162 void startLE();
163
164#ifdef Q_OS_MACOS
165
166 void startClassic();
167
168 // Classic (IOBluetooth) inquiry delegate's methods:
169 void inquiryFinished() override;
170 void error(IOReturn error) override;
171 void classicDeviceFound(void *device) override;
172 // Classic (IOBluetooth) errors:
173 void setError(IOReturn error, const QString &text = QString());
174
175#endif // Q_OS_MACOS
176
177 // LE scan delegates (CoreBluetooth, all Darwin OSes):
178 void LEinquiryFinished();
179 void LEinquiryError(QBluetoothDeviceDiscoveryAgent::Error error);
180 void LEnotSupported();
181
182 // LE errors:
183 void setError(QBluetoothDeviceDiscoveryAgent::Error,
184 const QString &text = QString());
185
186 // Both LE and Classic devices go there:
187 void deviceFound(const QBluetoothDeviceInfo &newDeviceInfo);
188
189 enum AgentState {
190 NonActive,
191 ClassicScan, // macOS (IOBluetooth) only
192 LEScan
193 } agentState;
194
195 bool startPending = false;
196 bool stopPending = false;
197
198#ifdef Q_OS_MACOS
199
200 DarwinBluetooth::ScopedPointer controller;
201 DarwinBluetooth::ScopedPointer inquiry;
202
203#endif // Q_OS_MACOS
204
205 DarwinBluetooth::ScopedPointer inquiryLE;
206
207#endif // Q_OS_DARWIN
208
209 int lowEnergySearchTimeout = 40000;
210 QBluetoothDeviceDiscoveryAgent::DiscoveryMethods requestedMethods;
211 QBluetoothDeviceDiscoveryAgent *q_ptr;
212};
213
214QT_END_NAMESPACE
215
216#endif
217

source code of qtconnectivity/src/bluetooth/qbluetoothdevicediscoveryagent_p.h