1 /*
2 * Copyright 2012 Alex Merry <alex.merry@kdemail.net>
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "DBusAbstractAdaptor.h"
27
28 #include <QDebug>
29 #include <QMetaClassInfo>
30 #include <QDBusMessage>
31
32 #include "core/support/Debug.h"
33
DBusAbstractAdaptor(QObject * parent)34 DBusAbstractAdaptor::DBusAbstractAdaptor( QObject *parent )
35 : QDBusAbstractAdaptor( parent )
36 , m_connection( QDBusConnection::sessionBus() )
37 {
38 }
39
connection() const40 QDBusConnection DBusAbstractAdaptor::connection() const
41 {
42 return m_connection;
43 }
44
setConnection(const QDBusConnection & conn)45 void DBusAbstractAdaptor::setConnection( const QDBusConnection &conn )
46 {
47 m_connection = conn;
48 }
49
dBusPath() const50 QString DBusAbstractAdaptor::dBusPath() const
51 {
52 return m_path;
53 }
54
setDBusPath(const QString & path)55 void DBusAbstractAdaptor::setDBusPath( const QString &path )
56 {
57 m_path = path;
58 }
59
signalPropertyChange(const QString & property,const QVariant & value)60 void DBusAbstractAdaptor::signalPropertyChange( const QString &property, const QVariant &value )
61 {
62 if ( m_updatedProperties.isEmpty() && m_invalidatedProperties.isEmpty() ) {
63 QMetaObject::invokeMethod( this, "_m_emitPropertiesChanged", Qt::QueuedConnection );
64 debug() << "MPRIS2: Queueing up a PropertiesChanged signal";
65 }
66
67 m_updatedProperties[property] = value;
68 }
69
signalPropertyChange(const QString & property)70 void DBusAbstractAdaptor::signalPropertyChange( const QString &property )
71 {
72 if ( !m_invalidatedProperties.contains( property ) ) {
73 if ( m_updatedProperties.isEmpty() && m_invalidatedProperties.isEmpty() ) {
74 QMetaObject::invokeMethod( this, "_m_emitPropertiesChanged", Qt::QueuedConnection );
75 debug() << "MPRIS2: Queueing up a PropertiesChanged signal";
76 }
77
78 m_invalidatedProperties << property;
79 }
80 }
81
_m_emitPropertiesChanged()82 void DBusAbstractAdaptor::_m_emitPropertiesChanged()
83 {
84 Q_ASSERT( !m_path.isEmpty() );
85
86 if( m_updatedProperties.isEmpty() && m_invalidatedProperties.isEmpty() ) {
87 debug() << "MPRIS2: Nothing to do";
88 return;
89 }
90
91 int ifaceIndex = metaObject()->indexOfClassInfo( "D-Bus Interface" );
92 if ( ifaceIndex < 0 ) {
93 warning() << "MPRIS2: No D-Bus interface given (missing Q_CLASSINFO)";
94 } else {
95 QDBusMessage signal = QDBusMessage::createSignal( m_path,
96 QStringLiteral("org.freedesktop.DBus.Properties"),
97 QStringLiteral("PropertiesChanged") );
98 signal << metaObject()->classInfo( ifaceIndex ).value();
99 signal << m_updatedProperties;
100 signal << m_invalidatedProperties;
101 m_connection.send( signal );
102 }
103
104 m_updatedProperties.clear();
105 m_invalidatedProperties.clear();
106 }
107
108