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
|
/*
* Copyright (C) 2017 Konsulko Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "mastervolume.h"
#include <QJsonObject>
#include <QTimer>
#include <QtDebug>
#define MASTER_CONTROL "Master Playback"
MasterVolume::MasterVolume(QObject* parent)
: QObject(parent)
, m_volume{50}
{
connect(&m_client, SIGNAL(connected()), this, SLOT(onClientConnected()));
connect(&m_client, SIGNAL(disconnected()), this, SLOT(onClientDisconnected()));
connect(&m_client, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(onClientError(QAbstractSocket::SocketError)));
connect(&m_client, SIGNAL(eventReceived(QString, const QJsonValue&)), this, SLOT(onClientEventReceived(QString, const QJsonValue&)));
}
void MasterVolume::open(const QUrl& url)
{
m_url = url;
TryOpen();
}
qint32 MasterVolume::getVolume() const
{
return m_volume;
}
void MasterVolume::setVolume(qint32 volume)
{
if (m_volume != volume)
{
m_volume = volume;
QJsonObject arg;
arg.insert("control", MASTER_CONTROL);
double v = (double) volume / 100.0;
arg.insert("value", v);
m_client.call("audiomixer", "volume", arg);
}
}
void MasterVolume::onClientConnected()
{
QJsonObject arg;
arg.insert("control", MASTER_CONTROL);
m_client.call("audiomixer", "volume", arg, [this](bool r, const QJsonValue& v) {
if (r && v.isObject()) {
int volume = v.toObject()["response"].toObject()["volume"].toDouble() * 100;
volume = qBound(0, volume, 100);
if (m_volume != volume)
{
m_volume = volume;
emit VolumeChanged();
}
}
QJsonObject arg;
arg.insert("event", "volume_changed");
m_client.call("audiomixer", "subscribe", arg);
});
}
void MasterVolume::onClientDisconnected()
{
qDebug() << "MasterVolume::onClientDisconnected!";
QTimer::singleShot(1000, this, SLOT(TryOpen()));
}
void MasterVolume::onClientError(QAbstractSocket::SocketError se)
{
qDebug() << "MasterVolume::onClientError: " << se;
}
void MasterVolume::onClientEventReceived(QString name, const QJsonValue& data)
{
qDebug() << "MasterVolume::onClientEventReceived[" << name << "]: " << data;
if (name == "audiomixer/volume_changed")
{
QString ctlName = data.toObject()["control"].toString();
if (ctlName != MASTER_CONTROL)
return;
int volume = data.toObject()["value"].toDouble() * 100;
volume = qBound(0, volume, 100);
if (m_volume != volume)
{
m_volume = volume;
emit VolumeChanged();
}
}
}
void MasterVolume::TryOpen()
{
m_client.open(m_url);
}
|