Expose availability from the backend to C++ and QML.

The availabilityError property was static based on the service, but it
can change at run time, so add the plumbing to allow the backend to
report it itself.

Also make sure that both QML and C++ expose the availability.

The radio tuner and data controls previously had properties (but no
signals) for availability - these have been removed.

Change-Id: I9240cf93e2a51b14cd38642f9312ae3c75f05361
Reviewed-by: Ling Hu <ling.hu@nokia.com>

examples/declarative-radio/view.qml

@@ -72,7 +72,7 @@ Rectangle {
                 height: 200
 
                 verticalAlignment: Text.AlignVCenter
-                text: (radio.isAvailable() ? "No Signal " : "No Radio Found")
+                text: (radio.availability == Radio.Available ? "No Signal " : "No Radio Found")
             }
         }
 

src/imports/multimedia/Video.qml

@@ -192,6 +192,28 @@ Item {
     */
     property alias errorString:     player.errorString
 
+    /*!
+        \qmlproperty enumeration Video::availability
+
+        Returns the availability state of the video element.
+
+        This is one of:
+        \table
+        \header \li Value \li Description
+        \row \li MediaPlayer.Available
+            \li The video player is available to use.
+        \row \li MediaPlayer.Busy
+            \li The video player is usually available, but some other
+               process is utilizing the hardware necessary to play media.
+        \row \li MediaPlayer.Unavailable
+            \li There are no supported video playback facilities.
+        \row \li MediaPlayer.ResourceMissing
+            \li There is one or more resources missing, so the video player cannot
+               be used.  It may be possible to try again at a later time.
+        \endtable
+     */
+    property alias availability:    player.availability
+
     /*!
         \qmlproperty bool Video::hasAudio
 

src/imports/multimedia/qdeclarativeaudio.cpp

@@ -42,6 +42,7 @@
 #include "qdeclarativeaudio_p.h"
 
 #include <qmediaplayercontrol.h>
+#include <qmediaavailabilitycontrol.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -152,6 +153,11 @@ void QDeclarativeAudio::_q_error(int errorCode, const QString &errorString)
     emit errorChanged();
 }
 
+void QDeclarativeAudio::_q_availabilityChanged(QtMultimedia::AvailabilityError)
+{
+    emit availabilityChanged(availability());
+}
+
 
 QDeclarativeAudio::QDeclarativeAudio(QObject *parent)
     : QObject(parent)
@@ -163,6 +169,35 @@ QDeclarativeAudio::~QDeclarativeAudio()
     shutdown();
 }
 
+/*!
+    \qmlproperty enumeration QtMultimedia5::Audio::availability
+
+    Returns the availability state of the media player.
+
+    This is one of:
+    \table
+    \header \li Value \li Description
+    \row \li Available
+        \li The media player is available to use.
+    \row \li Busy
+        \li The media player is usually available, but some other
+           process is utilizing the hardware necessary to play media.
+    \row \li Unavailable
+        \li There are no supported media playback facilities.
+    \row \li ResourceMissing
+        \li There is one or more resources missing, so the media player cannot
+           be used.  It may be possible to try again at a later time.
+    \endtable
+ */
+QDeclarativeAudio::Availability QDeclarativeAudio::availability() const
+{
+    if (!m_playerControl)
+        return Unavailable;
+    if (m_availabilityControl)
+        return Availability(m_availabilityControl->availability());
+    return Available;
+}
+
 /*!
     \qmlmethod QtMultimedia5::Audio::play()
 

src/imports/multimedia/qdeclarativeaudio_p.h

@@ -87,10 +87,12 @@ class QDeclarativeAudio : public QObject, public QDeclarativeMediaBase, public Q
     Q_PROPERTY(QString errorString READ errorString NOTIFY errorChanged)
     Q_PROPERTY(QDeclarativeMediaMetaData *metaData READ metaData CONSTANT)
     Q_PROPERTY(QObject *mediaObject READ mediaObject NOTIFY mediaObjectChanged SCRIPTABLE false DESIGNABLE false)
+    Q_PROPERTY(Availability availability READ availability NOTIFY availabilityChanged)
     Q_ENUMS(Status)
     Q_ENUMS(Error)
     Q_ENUMS(Loop)
     Q_ENUMS(PlaybackState)
+    Q_ENUMS(Availability)
     Q_INTERFACES(QDeclarativeParserStatus)
 public:
     enum Status
@@ -128,6 +130,13 @@ public:
         StoppedState = QMediaPlayer::StoppedState
     };
 
+    enum Availability {
+        Available = QtMultimedia::NoError,
+        Busy = QtMultimedia::BusyError,
+        Unavailable = QtMultimedia::ServiceMissingError,
+        ResourceMissing = QtMultimedia::ResourceError
+    };
+
     QDeclarativeAudio(QObject *parent = 0);
     ~QDeclarativeAudio();
 
@@ -143,6 +152,8 @@ public:
 
     QObject *mediaObject() { return m_mediaObject; }
 
+    Availability availability() const;
+
 public Q_SLOTS:
     void play();
     void pause();
@@ -175,6 +186,8 @@ Q_SIGNALS:
     void seekableChanged();
     void playbackRateChanged();
 
+    void availabilityChanged(Availability availability);
+
     void errorChanged();
     void error(QDeclarativeAudio::Error error, const QString &errorString);
 
@@ -182,6 +195,7 @@ Q_SIGNALS:
 
 private Q_SLOTS:
     void _q_error(int, const QString &);
+    void _q_availabilityChanged(QtMultimedia::AvailabilityError);
 
 private:
     Q_DISABLE_COPY(QDeclarativeAudio)

src/imports/multimedia/qdeclarativecamera.cpp

@@ -68,6 +68,11 @@ void QDeclarativeCamera::_q_updateState(QCamera::State state)
     emit cameraStateChanged(QDeclarativeCamera::State(state));
 }
 
+void QDeclarativeCamera::_q_availabilityChanged(QtMultimedia::AvailabilityError error)
+{
+    emit availabilityChanged(Availability(error));
+}
+
 /*!
     \qmlclass Camera QDeclarativeCamera
     \brief The Camera element allows you to access viewfinder frames, and take photos and movies.
@@ -176,6 +181,9 @@ QDeclarativeCamera::QDeclarativeCamera(QObject *parent) :
     connect(m_camera, SIGNAL(lockStatusChanged(QCamera::LockStatus,QCamera::LockChangeReason)), this, SIGNAL(lockStatusChanged()));
     connect(m_camera, SIGNAL(stateChanged(QCamera::State)), this, SLOT(_q_updateState(QCamera::State)));
 
+    // Note we map availabilityError->availability
+    connect(m_camera, SIGNAL(availabilityErrorChanged(QtMultimedia::AvailabilityError)), this, SLOT(_q_availabilityChanged(QtMultimedia::AvailabilityError)));
+
     connect(m_camera->focus(), SIGNAL(opticalZoomChanged(qreal)), this, SIGNAL(opticalZoomChanged(qreal)));
     connect(m_camera->focus(), SIGNAL(digitalZoomChanged(qreal)), this, SIGNAL(digitalZoomChanged(qreal)));
     connect(m_camera->focus(), SIGNAL(maximumOpticalZoomChanged(qreal)), this, SIGNAL(maximumOpticalZoomChanged(qreal)));
@@ -217,6 +225,35 @@ QString QDeclarativeCamera::errorString() const
     return m_camera->errorString();
 }
 
+/*!
+    \qmlproperty enumeration QtMultimedia5::Camera::availability
+
+    Returns the availability state of the camera.
+
+    This is one of:
+
+    \table
+    \header \li Value \li Description
+    \row \li Available
+        \li The camera is available to use
+    \row \li Busy
+        \li The camera is usually available to use, but is currently busy.
+           This can happen when some other process needs to use the camera
+           hardware.
+    \row \li Unavailable
+        \li The camera is not available to use (there may be no camera
+           hardware)
+    \row \li ResourceMissing
+        \li There is one or more resources missing, so the camera cannot
+           be used.  It may be possible to try again at a later time.
+    \endtable
+ */
+QDeclarativeCamera::Availability QDeclarativeCamera::availability() const
+{
+    return Availability(m_camera->availabilityError());
+}
+
+
 /*!
     \qmlproperty enumeration QtMultimedia5::Camera::captureMode
 

src/imports/multimedia/qdeclarativecamera_p.h

@@ -84,6 +84,8 @@ class QDeclarativeCamera : public QObject, public QDeclarativeParserStatus
     Q_PROPERTY(LockStatus lockStatus READ lockStatus NOTIFY lockStatusChanged)
     Q_PROPERTY(QString errorString READ errorString NOTIFY errorChanged)
 
+    Q_PROPERTY(Availability availability READ availability NOTIFY availabilityChanged)
+
     Q_PROPERTY(qreal opticalZoom READ opticalZoom WRITE setOpticalZoom NOTIFY opticalZoomChanged)
     Q_PROPERTY(qreal maximumOpticalZoom READ maximumOpticalZoom NOTIFY maximumOpticalZoomChanged)
     Q_PROPERTY(qreal digitalZoom READ digitalZoom WRITE setDigitalZoom NOTIFY digitalZoomChanged)
@@ -109,6 +111,8 @@ class QDeclarativeCamera : public QObject, public QDeclarativeParserStatus
     Q_ENUMS(FocusMode)
     Q_ENUMS(FocusPointMode)
     Q_ENUMS(FocusAreaStatus)
+    Q_ENUMS(Availability)
+
 public:
     enum CaptureMode {
         CaptureStillImage = QCamera::CaptureStillImage,
@@ -193,6 +197,12 @@ public:
         FocusAreaFocused = QCameraFocusZone::Focused
     };
 
+    enum Availability {
+        Available = QtMultimedia::NoError,
+        Busy = QtMultimedia::BusyError,
+        Unavailable = QtMultimedia::ServiceMissingError,
+        ResourceMissing = QtMultimedia::ResourceError
+    };
 
     QDeclarativeCamera(QObject *parent = 0);
     ~QDeclarativeCamera();
@@ -220,6 +230,8 @@ public:
     qreal opticalZoom() const;
     qreal digitalZoom() const;
 
+    Availability availability() const;
+
 public Q_SLOTS:
     void setCaptureMode(CaptureMode mode);
 
@@ -250,9 +262,12 @@ Q_SIGNALS:
 
     void mediaObjectChanged();
 
+    void availabilityChanged(Availability availability);
+
 private Q_SLOTS:
     void _q_updateState(QCamera::State);
     void _q_error(int, const QString &);
+    void _q_availabilityChanged(QtMultimedia::AvailabilityError);
 
 protected:
     void classBegin();

src/imports/multimedia/qdeclarativemediabase.cpp

@@ -49,6 +49,7 @@
 #include <qmediaservice.h>
 #include <private/qmediaserviceprovider_p.h>
 #include <qmetadatareadercontrol.h>
+#include <qmediaavailabilitycontrol.h>
 
 #include "qdeclarativemediametadata_p.h"
 
@@ -98,6 +99,22 @@ public:
     void stop() {}
 };
 
+class QDeclarativeMediaBaseAvailabilityControl : public QMediaAvailabilityControl
+{
+public:
+    QDeclarativeMediaBaseAvailabilityControl(bool available)
+        : m_available(available)
+    {
+    }
+
+    QtMultimedia::AvailabilityError availability() const
+    {
+        return m_available ? QtMultimedia::NoError : QtMultimedia::ServiceMissingError;
+    }
+
+private:
+    bool m_available;
+};
 
 class QDeclarativeMediaBaseMetaDataControl : public QMetaDataReaderControl
 {
@@ -211,6 +228,7 @@ QDeclarativeMediaBase::QDeclarativeMediaBase()
     , m_mediaProvider(0)
     , m_metaDataControl(0)
     , m_animation(0)
+    , m_availabilityControl(0)
     , m_playbackState(QMediaPlayer::StoppedState)
     , m_status(QMediaPlayer::NoMedia)
     , m_error(QMediaPlayer::ServiceMissingError)
@@ -245,9 +263,12 @@ void QDeclarativeMediaBase::setObject(QObject *object, const QByteArray &type)
             m_metaDataControl = qobject_cast<QMetaDataReaderControl *>(
                     m_mediaService->requestControl(QMetaDataReaderControl_iid));
             m_mediaObject = new QDeclarativeMediaBaseObject(m_mediaService);
+            m_availabilityControl = m_mediaService->requestControl<QMediaAvailabilityControl*>();
         }
     }
 
+    bool realPlayer = m_playerControl;
+
     if (m_playerControl) {
         QObject::connect(m_playerControl, SIGNAL(stateChanged(QMediaPlayer::State)),
                 object, SLOT(_q_statusChanged()));
@@ -281,6 +302,12 @@ void QDeclarativeMediaBase::setObject(QObject *object, const QByteArray &type)
     if (!m_metaDataControl)
         m_metaDataControl = new QDeclarativeMediaBaseMetaDataControl(object);
 
+    if (!m_availabilityControl)
+        m_availabilityControl = new QDeclarativeMediaBaseAvailabilityControl(realPlayer);
+
+    QObject::connect(m_availabilityControl, SIGNAL(availabilityChanged(QtMultimedia::AvailabilityError)),
+                     object, SLOT(_q_availabilityChanged(QtMultimedia::AvailabilityError)));
+
     m_metaData.reset(new QDeclarativeMediaMetaData(m_metaDataControl));
 
     QObject::connect(m_metaDataControl, SIGNAL(metaDataChanged()),

src/imports/multimedia/qdeclarativemediabase_p.h

@@ -67,6 +67,7 @@ class QMediaServiceProvider;
 class QMetaDataReaderControl;
 class QDeclarativeMediaBaseAnimation;
 class QDeclarativeMediaMetaData;
+class QMediaAvailabilityControl;
 
 class QDeclarativeMediaBase
 {
@@ -174,6 +175,8 @@ protected:
     QDeclarativeMediaBaseAnimation *m_animation;
     QScopedPointer<QDeclarativeMediaMetaData> m_metaData;
 
+    QMediaAvailabilityControl *m_availabilityControl;
+
     QMediaPlayer::State m_playbackState;
     QMediaPlayer::MediaStatus m_status;
     QMediaPlayer::Error m_error;

src/imports/multimedia/qdeclarativeradio.cpp

@@ -112,6 +112,9 @@ QDeclarativeRadio::QDeclarativeRadio(QObject *parent) :
     connect(m_radioTuner, SIGNAL(stationFound(int, QString)), this, SIGNAL(stationFound(int, QString)));
     connect(m_radioTuner, SIGNAL(antennaConnectedChanged(bool)), this, SIGNAL(antennaConnectedChanged(bool)));
 
+    // Note we map availabilityError->availability
+    connect(m_radioTuner, SIGNAL(availabilityErrorChanged(QtMultimedia::AvailabilityError)), this, SLOT(_q_availabilityChanged(QtMultimedia::AvailabilityError)));
+
     connect(m_radioTuner, SIGNAL(error(QRadioTuner::Error)), this, SLOT(_q_error(QRadioTuner::Error)));
 }
 
@@ -306,13 +309,33 @@ bool QDeclarativeRadio::isAntennaConnected() const
 }
 
 /*!
-    \qmlmethod bool QtMultimedia5::Radio::isAvailable()
+    \qmlproperty enumeration QtMultimedia5::Radio::availability
 
-    Returns whether the radio is ready to use.
+    Returns the availability state of the radio.
+
+    This is one of:
+
+    \table
+    \header \li Value \li Description
+    \row \li Available
+        \li The radio is available to use
+    \row \li Busy
+        \li The radio is usually available to use, but is currently busy.
+           This can happen when some other process needs to use the audio
+           hardware.
+    \row \li Unavailable
+        \li The radio is not available to use (there may be no radio
+           hardware)
+    \row \li ResourceMissing
+        \li There is one or more resources missing, so the radio cannot
+           be used.  It may be possible to try again at a later time.  This
+           can occur if there is no antenna connected - see the \l antennaConnected
+           property as well.
+    \endtable
  */
-bool QDeclarativeRadio::isAvailable() const
+QDeclarativeRadio::Availability QDeclarativeRadio::availability() const
 {
-    return m_radioTuner->isAvailable();
+    return Availability(m_radioTuner->availabilityError());
 }
 
 void QDeclarativeRadio::setBand(QDeclarativeRadio::Band band)
@@ -462,7 +485,7 @@ void QDeclarativeRadio::tuneUp()
 /*!
     \qmlmethod QtMultimedia5::Radio::start()
 
-    Starts the radio. If the radio is available, as determined by the \l isAvailable method,
+    Starts the radio. If the radio is available, as determined by the \l availability property,
     this will result in the \l state becoming \c ActiveState.
  */
 void QDeclarativeRadio::start()
@@ -496,6 +519,11 @@ void QDeclarativeRadio::_q_error(QRadioTuner::Error errorCode)
     emit errorChanged();
 }
 
+void QDeclarativeRadio::_q_availabilityChanged(QtMultimedia::AvailabilityError error)
+{
+    emit availabilityChanged(Availability(error));
+}
+
 /*!
     \qmlsignal QtMultimedia5::Radio::stationFound(int frequency, string stationId)
 

src/imports/multimedia/qdeclarativeradio_p.h

@@ -76,11 +76,13 @@ class QDeclarativeRadio : public QObject
     Q_PROPERTY(int minimumFrequency READ minimumFrequency NOTIFY bandChanged)
     Q_PROPERTY(int maximumFrequency READ maximumFrequency NOTIFY bandChanged)
     Q_PROPERTY(bool antennaConnected READ isAntennaConnected NOTIFY antennaConnectedChanged)
+    Q_PROPERTY(Availability availability READ availability NOTIFY availabilityChanged)
     Q_ENUMS(State)
     Q_ENUMS(Band)
     Q_ENUMS(Error)
     Q_ENUMS(StereoMode)
     Q_ENUMS(SearchMode)
+    Q_ENUMS(Availability)
 
 public:
     enum State {
@@ -114,6 +116,13 @@ public:
         SearchGetStationId = QRadioTuner::SearchGetStationId
     };
 
+    enum Availability {
+        Available = QtMultimedia::NoError,
+        Busy = QtMultimedia::BusyError,
+        Unavailable = QtMultimedia::ServiceMissingError,
+        ResourceMissing = QtMultimedia::ResourceError
+    };
+
     QDeclarativeRadio(QObject *parent = 0);
     ~QDeclarativeRadio();
 
@@ -134,7 +143,8 @@ public:
 
     bool isAntennaConnected() const;
 
-    Q_INVOKABLE bool isAvailable() const;
+    Q_INVOKABLE bool isAvailable() const {return availability() == Available;}
+    Availability availability() const;
 
 public Q_SLOTS:
     void setBand(QDeclarativeRadio::Band band);
@@ -165,6 +175,8 @@ Q_SIGNALS:
     void stationFound(int frequency, QString stationId);
     void antennaConnectedChanged(bool connectionStatus);
 
+    void availabilityChanged(Availability availability);
+
     void errorChanged();
     void error(QDeclarativeRadio::Error errorCode);
 
@@ -172,6 +184,7 @@ private Q_SLOTS:
     void _q_stateChanged(QRadioTuner::State state);
     void _q_bandChanged(QRadioTuner::Band band);
     void _q_error(QRadioTuner::Error errorCode);
+    void _q_availabilityChanged(QtMultimedia::AvailabilityError);
 
 private:
     Q_DISABLE_COPY(QDeclarativeRadio)

src/imports/multimedia/qdeclarativeradiodata.cpp

@@ -112,6 +112,9 @@ QDeclarativeRadioData::QDeclarativeRadioData(QObject *parent) :
     connect(m_radioData, SIGNAL(alternativeFrequenciesEnabledChanged(bool)), this,
                          SIGNAL(alternativeFrequenciesEnabledChanged(bool)));
 
+    // Note we map availabilityError->availability
+    connect(m_radioData, SIGNAL(availabilityErrorChanged(QtMultimedia::AvailabilityError)), this, SLOT(_q_availabilityChanged(QtMultimedia::AvailabilityError)));
+
     connect(m_radioData, SIGNAL(error(QRadioData::Error)), this, SLOT(_q_error(QRadioData::Error)));
 }
 
@@ -120,15 +123,32 @@ QDeclarativeRadioData::~QDeclarativeRadioData()
 }
 
 /*!
-    \qmlmethod bool QtMultimedia5::RadioData::isAvailable()
+    \qmlproperty enumeration QtMultimedia5::RadioData::availability
 
-    Returns whether the radio data element is ready to use.
+    Returns the availability state of the radio data interface.
-  */
+
-bool QDeclarativeRadioData::isAvailable() const
+    This is one of:
+
+    \table
+    \header \li Value \li Description
+    \row \li Available
+        \li The radio data interface is available to use
+    \row \li Busy
+        \li The radio data interface is usually available to use, but is currently busy.
+    \row \li Unavailable
+        \li The radio data interface is not available to use (there may be no radio
+           hardware)
+    \row \li ResourceMissing
+        \li There is one or more resources missing, so the radio cannot
+           be used.  It may be possible to try again at a later time.
+    \endtable
+ */
+QDeclarativeRadioData::Availability QDeclarativeRadioData::availability() const
 {
-    return m_radioData->isAvailable();
+    return Availability(m_radioData->availabilityError());
 }
 
+
 /*!
     \qmlproperty string QtMultimedia5::RadioData::stationId
 
@@ -265,4 +285,9 @@ void QDeclarativeRadioData::_q_error(QRadioData::Error errorCode)
     emit errorChanged();
 }
 
+void QDeclarativeRadioData::_q_availabilityChanged(QtMultimedia::AvailabilityError error)
+{
+    emit availabilityChanged(Availability(error));
+}
+
 QT_END_NAMESPACE

src/imports/multimedia/qdeclarativeradiodata_p.h

@@ -70,8 +70,10 @@ class QDeclarativeRadioData : public QObject
     Q_PROPERTY(QString radioText READ radioText NOTIFY radioTextChanged)
     Q_PROPERTY(bool alternativeFrequenciesEnabled READ alternativeFrequenciesEnabled
                WRITE setAlternativeFrequenciesEnabled NOTIFY alternativeFrequenciesEnabledChanged)
+    Q_PROPERTY(Availability availability READ availability NOTIFY availabilityChanged)
     Q_ENUMS(Error)
     Q_ENUMS(ProgramType)
+    Q_ENUMS(Availability)
 
 public:
 
@@ -130,14 +132,19 @@ public:
         ReligiousTalk = QRadioData::ReligiousTalk,
         Personality = QRadioData::Personality,
         Public = QRadioData::Public,
-        College = QRadioData::College,
+        College = QRadioData::College
+    };
+
+    enum Availability {
+        Available = QtMultimedia::NoError,
+        Busy = QtMultimedia::BusyError,
+        Unavailable = QtMultimedia::ServiceMissingError,
+        ResourceMissing = QtMultimedia::ResourceError
     };
 
     QDeclarativeRadioData(QObject *parent = 0);
     ~QDeclarativeRadioData();
 
-    Q_INVOKABLE bool isAvailable() const;
-
     QString stationId() const;
     QDeclarativeRadioData::ProgramType programType() const;
     QString programTypeName() const;
@@ -145,6 +152,9 @@ public:
     QString radioText() const;
     bool alternativeFrequenciesEnabled() const;
 
+    Q_INVOKABLE bool isAvailable() const {return availability() == Available;}
+    Availability availability() const;
+
 public Q_SLOTS:
     void setAlternativeFrequenciesEnabled(bool enabled);
 
@@ -156,12 +166,15 @@ Q_SIGNALS:
     void radioTextChanged(QString radioText);
     void alternativeFrequenciesEnabledChanged(bool enabled);
 
+    void availabilityChanged(Availability availability);
+
     void errorChanged();
     void error(QDeclarativeRadioData::Error errorCode);
 
 private Q_SLOTS:
     void _q_programTypeChanged(QRadioData::ProgramType programType);
     void _q_error(QRadioData::Error errorCode);
+    void _q_availabilityChanged(QtMultimedia::AvailabilityError);
 
 private:
     Q_DISABLE_COPY(QDeclarativeRadioData)

src/multimedia/camera/qcamera.cpp

@@ -409,19 +409,9 @@ QCamera::~QCamera()
     }
 }
 
-
 /*!
-    Return true if the camera service is ready to use.
+    Returns the availability state of the camera service.
 */
-bool QCamera::isAvailable() const
-{
-    return availabilityError() == QtMultimedia::NoError;
-}
-
-/*!
-    Returns the error state of the camera service.
-*/
-
 QtMultimedia::AvailabilityError QCamera::availabilityError() const
 {
     Q_D(const QCamera);
@@ -434,7 +424,7 @@ QtMultimedia::AvailabilityError QCamera::availabilityError() const
     if (d->error != QCamera::NoError)
         return QtMultimedia::ResourceError;
 
-    return QtMultimedia::NoError;
+    return QMediaObject::availabilityError();
 }
 
 

src/multimedia/camera/qcamera.h

@@ -150,7 +150,6 @@ public:
     static QList<QByteArray> availableDevices();
     static QString deviceDescription(const QByteArray &device);
 
-    bool isAvailable() const;
     QtMultimedia::AvailabilityError availabilityError() const;
 
     State state() const;

src/multimedia/controls/controls.pri

@@ -33,7 +33,8 @@ PUBLIC_HEADERS += \
     controls/qvideoencodercontrol.h \
     controls/qvideorenderercontrol.h \
     controls/qmediaaudioprobecontrol.h \
-    controls/qmediavideoprobecontrol.h
+    controls/qmediavideoprobecontrol.h \
+    controls/qmediaavailabilitycontrol.h
 
 PRIVATE_HEADERS += \
     controls/qaudiodecodercontrol_p.h
@@ -71,4 +72,7 @@ SOURCES += \
     controls/qvideorenderercontrol.cpp \
     controls/qmediaaudioprobecontrol.cpp \
     controls/qmediavideoprobecontrol.cpp \
-    controls/qaudiodecodercontrol_p.cpp
+    controls/qaudiodecodercontrol_p.cpp \
+    controls/qmediaavailabilitycontrol.cpp
+
+

src/multimedia/controls/qmediaavailabilitycontrol.cpp

@@ -0,0 +1,109 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmediaavailabilitycontrol.h"
+#include "qmediacontrol_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QMediaAvailabilityControl
+
+    \brief The QMediaAvailabilityControl class supplies a control for reporting availability of a service.
+
+    \inmodule QtMultimedia
+
+    \ingroup multimedia
+    \ingroup multimedia_control
+
+    An instance of QMediaObject (or its derived classes) can report any changes
+    in availability via this control.
+
+    The interface name of QMediaAvailabilityControl is \c com.nokia.Qt.QMediaAvailabilityControl/1.0 as
+    defined in QMediaAvailabilityControl_iid.
+
+    \sa QMediaService::requestControl(), QMediaObject
+*/
+
+/*!
+    \macro QMediaAvailabilityControl_iid
+
+    \c com.nokia.Qt.QMediaAvailabilityControl/1.0
+
+    Defines the interface name of the QMediaAvailabilityControl class.
+
+    \relates QMediaAvailabilityControl
+*/
+
+/*!
+    Constructs an availability control object with \a parent.
+*/
+QMediaAvailabilityControl::QMediaAvailabilityControl(QObject *parent)
+    : QMediaControl(*new QMediaControlPrivate, parent)
+{
+}
+
+/*!
+    Destruct the availability control object.
+*/
+QMediaAvailabilityControl::~QMediaAvailabilityControl()
+{
+}
+
+
+/*!
+  \fn QtMultimedia::AvailabilityError QMediaAvailabilityControl::availability() const
+
+  Returns the current availability of this instance of the media service.
+  If the availability changes at run time (for example, some other media
+  client takes all media resources) the availabilityChanges() signal
+  should be emitted.
+*/
+
+
+/*!
+    \fn void QMediaAvailabilityControl::availabilityChanged(QtMultimedia::AvailabilityError availability)
+
+    Signal emitted when the current \a availability value changed.
+*/
+
+#include "moc_qmediaavailabilitycontrol.cpp"
+QT_END_NAMESPACE

src/multimedia/controls/qmediaavailabilitycontrol.h

@@ -0,0 +1,78 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QMEDIAAVAILABILITYCONTROL_H
+#define QMEDIAAVAILABILITYCONTROL_H
+
+#include <qmediacontrol.h>
+#include <qmediaobject.h>
+#include <qtmedianamespace.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Multimedia)
+
+class Q_MULTIMEDIA_EXPORT QMediaAvailabilityControl : public QMediaControl
+{
+    Q_OBJECT
+
+public:
+    ~QMediaAvailabilityControl();
+
+    virtual QtMultimedia::AvailabilityError availability() const = 0;
+
+signals:
+    void availabilityChanged(QtMultimedia::AvailabilityError availability);
+
+protected:
+    QMediaAvailabilityControl(QObject* parent = 0);
+};
+
+#define QMediaAvailabilityControl_iid "com.nokia.Qt.QMediaAvailabilityControl/1.0"
+Q_MEDIA_DECLARE_CONTROL(QMediaAvailabilityControl, QMediaAvailabilityControl_iid)
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QMEDIAAVAILABILITYCONTROL_H

src/multimedia/controls/qradiodatacontrol.cpp

@@ -93,18 +93,6 @@ QRadioDataControl::~QRadioDataControl()
 {
 }
 
-/*!
-    \fn bool QRadioDataControl::isAvailable() const
-
-    Returns true if the radio service is ready to use.
-*/
-
-/*!
-    \fn QtMultimedia::AvailabilityError QRadioDataControl::availabilityError() const
-
-    Returns the error state of the radio service.
-*/
-
 /*!
     \fn QRadioData::Error QRadioDataControl::error() const
 

src/multimedia/controls/qradiodatacontrol.h

@@ -59,9 +59,6 @@ class Q_MULTIMEDIA_EXPORT QRadioDataControl : public QMediaControl
 public:
     ~QRadioDataControl();
 
-    virtual bool isAvailable() const = 0;
-    virtual QtMultimedia::AvailabilityError availabilityError() const = 0;
-
     virtual QString stationId() const = 0;
     virtual QRadioData::ProgramType programType() const = 0;
     virtual QString programTypeName() const = 0;

src/multimedia/controls/qradiotunercontrol.cpp

@@ -99,18 +99,6 @@ QRadioTunerControl::~QRadioTunerControl()
 {
 }
 
-/*!
-    \fn bool QRadioTunerControl::isAvailable() const
-
-    Returns true if the radio service is ready to use.
-*/
-
-/*!
-    \fn QtMultimedia::AvailabilityError QRadioTunerControl::availabilityError() const
-
-    Returns the error state of the radio service.
-*/
-
 /*!
     \fn QRadioTuner::State QRadioTunerControl::state() const
 
@@ -235,7 +223,7 @@ QRadioTunerControl::~QRadioTunerControl()
 */
 
 /*!
-    \fn bool QRadioTunerControl::antennaConnected() const
+    \fn bool QRadioTunerControl::isAntennaConnected() const
 
     Identifies if there is an antenna connected to the device.
 

src/multimedia/controls/qradiotunercontrol.h

@@ -59,9 +59,6 @@ class Q_MULTIMEDIA_EXPORT QRadioTunerControl : public QMediaControl
 public:
     ~QRadioTunerControl();
 
-    virtual bool isAvailable() const = 0;
-    virtual QtMultimedia::AvailabilityError availabilityError() const = 0;
-
     virtual QRadioTuner::State state() const = 0;
 
     virtual QRadioTuner::Band band() const = 0;

src/multimedia/playback/qmediaplayer.cpp

@@ -778,6 +778,17 @@ void QMediaPlayer::setVideoOutput(QAbstractVideoSurface *surface)
     }
 }
 
+/*! \reimp */
+QtMultimedia::AvailabilityError QMediaPlayer::availabilityError() const
+{
+    Q_D(const QMediaPlayer);
+
+    if (!d->control)
+        return QtMultimedia::ServiceMissingError;
+
+    return QMediaObject::availabilityError();
+}
+
 // Enums
 /*!
     \enum QMediaPlayer::State

src/multimedia/playback/qmediaplayer.h

@@ -158,6 +158,8 @@ public:
 
     QNetworkConfiguration currentNetworkConfiguration() const;
 
+    QtMultimedia::AvailabilityError availabilityError() const;
+
 public Q_SLOTS:
     void play();
     void pause();

src/multimedia/qmediaobject.cpp

@@ -47,7 +47,7 @@
 #include <qmediaservice.h>
 #include <qmetadatareadercontrol.h>
 #include <qmediabindableinterface.h>
-
+#include <qmediaavailabilitycontrol.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -64,6 +64,17 @@ void QMediaObjectPrivate::_q_notify()
     }
 }
 
+void QMediaObjectPrivate::_q_availabilityChanged()
+{
+    Q_Q(QMediaObject);
+
+    // Really this should not always emit, but
+    // we can't really tell from here (isAvailable
+    // may not have changed, or the mediaobject's overridden
+    // availabilityError() may not have changed).
+    q->availabilityErrorChanged(q->availabilityError());
+    q->availabilityChanged(q->isAvailable());
+}
 
 /*!
     \class QMediaObject
@@ -104,7 +115,13 @@ QMediaObject::~QMediaObject()
 
 QtMultimedia::AvailabilityError QMediaObject::availabilityError() const
 {
-    return d_func()->service == 0 ? QtMultimedia::ServiceMissingError : QtMultimedia::NoError;
+    if (d_func()->service == 0)
+        return QtMultimedia::ServiceMissingError;
+
+    if (d_func()->availabilityControl)
+        return d_func()->availabilityControl->availability();
+
+    return QtMultimedia::NoError;
 }
 
 /*!
@@ -113,7 +130,7 @@ QtMultimedia::AvailabilityError QMediaObject::availabilityError() const
 
 bool QMediaObject::isAvailable() const
 {
-    return d_func()->service != 0;
+    return availabilityError() == QtMultimedia::NoError;
 }
 
 /*!
@@ -216,7 +233,7 @@ QMediaObject::QMediaObject(QObject *parent, QMediaService *service):
 
     d->service = service;
 
-    setupMetaData();
+    setupControls();
 }
 
 /*!
@@ -237,7 +254,7 @@ QMediaObject::QMediaObject(QMediaObjectPrivate &dd, QObject *parent,
 
     d->service = service;
 
-    setupMetaData();
+    setupControls();
 }
 
 /*!
@@ -360,7 +377,7 @@ QStringList QMediaObject::availableMetaData() const
 */
 
 
-void QMediaObject::setupMetaData()
+void QMediaObject::setupControls()
 {
     Q_D(QMediaObject);
 
@@ -377,6 +394,13 @@ void QMediaObject::setupMetaData()
                     SIGNAL(metaDataAvailableChanged(bool)),
                     SIGNAL(metaDataAvailableChanged(bool)));
         }
+
+        d->availabilityControl = d->service->requestControl<QMediaAvailabilityControl*>();
+        if (d->availabilityControl) {
+            connect(d->availabilityControl,
+                    SIGNAL(availabilityChanged(QtMultimedia::AvailabilityError)),
+                    SLOT(_q_availabilityChanged()));
+        }
     }
 }
 

src/multimedia/qmediaobject.h

@@ -90,6 +90,7 @@ Q_SIGNALS:
     void metaDataChanged(const QString &key, const QVariant &value);
 
     void availabilityChanged(bool available);
+    void availabilityErrorChanged(QtMultimedia::AvailabilityError error);
 
 protected:
     QMediaObject(QObject *parent, QMediaService *service);
@@ -101,10 +102,11 @@ protected:
     QMediaObjectPrivate *d_ptr;
 
 private:
-    void setupMetaData();
+    void setupControls();
 
     Q_DECLARE_PRIVATE(QMediaObject)
     Q_PRIVATE_SLOT(d_func(), void _q_notify())
+    Q_PRIVATE_SLOT(d_func(), void _q_availabilityChanged())
 };
 
 

src/multimedia/qmediaobject_p.h

@@ -67,6 +67,7 @@ QT_MODULE(Multimedia)
 
 
 class QMetaDataReaderControl;
+class QMediaAvailabilityControl;
 
 #define Q_DECLARE_NON_CONST_PUBLIC(Class) \
     inline Class* q_func() { return static_cast<Class *>(q_ptr); } \
@@ -82,9 +83,12 @@ public:
     virtual ~QMediaObjectPrivate() {}
 
     void _q_notify();
+    void _q_availabilityChanged();
 
     QMediaService *service;
     QMetaDataReaderControl *metaDataControl;
+    QMediaAvailabilityControl *availabilityControl;
+
     QTimer* notifyTimer;
     QSet<int> notifyProperties;
 

src/multimedia/radio/qradiodata.cpp

@@ -133,29 +133,16 @@ QRadioData::~QRadioData()
 }
 
 /*!
-    Returns true if the radio data service is ready to use.
+    Returns the availability of the radio data service.
-*/
-bool QRadioData::isAvailable() const
-{
-    Q_D(const QRadioData);
-
-    if (d->control != 0)
-        return d_func()->control->isAvailable();
-    else
-        return false;
-}
-
-/*!
-    Returns the availability error state.
 */
 QtMultimedia::AvailabilityError QRadioData::availabilityError() const
 {
     Q_D(const QRadioData);
 
-    if (d->control != 0)
+    if (d->control == 0)
-        return d_func()->control->availabilityError();
-    else
         return QtMultimedia::ServiceMissingError;
+
+    return QMediaObject::availabilityError();
 }
 
 /*!

src/multimedia/radio/qradiodata.h

@@ -90,7 +90,6 @@ public:
     QRadioData(QObject *parent = 0);
     ~QRadioData();
 
-    bool isAvailable() const;
     QtMultimedia::AvailabilityError availabilityError() const;
 
     QString stationId() const;

src/multimedia/radio/qradiotuner.cpp

@@ -149,25 +149,17 @@ QRadioTuner::~QRadioTuner()
 }
 
 /*!
-    Returns true if the radio tuner service is ready to use.
+    Returns the availability of the radio tuner.
-*/
-bool QRadioTuner::isAvailable() const
-{
-    if (d_func()->control != NULL)
-        return d_func()->control->isAvailable();
-    else
-        return false;
-}
-
-/*!
-    Returns the availability error state.
 */
 QtMultimedia::AvailabilityError QRadioTuner::availabilityError() const
 {
-    if (d_func()->control != NULL)
+    if (d_func()->control == 0)
-        return d_func()->control->availabilityError();
-    else
         return QtMultimedia::ServiceMissingError;
+
+    if (!d_func()->control->isAntennaConnected())
+        return QtMultimedia::ResourceError;
+
+    return QMediaObject::availabilityError();
 }
 
 /*!

src/multimedia/radio/qradiotuner.h

@@ -86,7 +86,6 @@ public:
     QRadioTuner(QObject *parent = 0);
     ~QRadioTuner();
 
-    bool isAvailable() const;
     QtMultimedia::AvailabilityError availabilityError() const;
 
     State state() const;

src/multimedia/recording/qmediarecorder.cpp

@@ -50,6 +50,7 @@
 #include <qaudioencodercontrol.h>
 #include <qvideoencodercontrol.h>
 #include <qmediacontainercontrol.h>
+#include <qmediaavailabilitycontrol.h>
 #include <qcamera.h>
 #include <qcameracontrol.h>
 
@@ -99,6 +100,7 @@ QMediaRecorderPrivate::QMediaRecorderPrivate():
      audioControl(0),
      videoControl(0),
      metaDataControl(0),
+     availabilityControl(0),
      notifyTimer(0),
      state(QMediaRecorder::StoppedState),
      error(QMediaRecorder::NoError)
@@ -143,6 +145,7 @@ void QMediaRecorderPrivate::_q_serviceDestroyed()
     audioControl = 0;
     videoControl = 0;
     metaDataControl = 0;
+    availabilityControl = 0;
 }
 
 void QMediaRecorderPrivate::_q_updateActualLocation(const QUrl &location)
@@ -179,6 +182,19 @@ void QMediaRecorderPrivate::_q_applySettings()
     }
 }
 
+void QMediaRecorderPrivate::_q_availabilityChanged(QtMultimedia::AvailabilityError error)
+{
+    Q_Q(QMediaRecorder);
+    Q_UNUSED(error);
+
+    // Really this should not always emit, but
+    // we can't really tell from here (isAvailable
+    // may not have changed, or the mediaobject's overridden
+    // availabilityError() may not have changed).
+    q->availabilityErrorChanged(q->availabilityError());
+    q->availabilityChanged(q->isAvailable());
+}
+
 void QMediaRecorderPrivate::restartCamera()
 {
     //restart camera if it can't apply new settings in the Active state
@@ -299,6 +315,11 @@ bool QMediaRecorder::setMediaObject(QMediaObject *object)
 
                 service->releaseControl(d->metaDataControl);
             }
+            if (d->availabilityControl) {
+                disconnect(d->availabilityControl, SIGNAL(availabilityChanged(QtMultimedia::AvailabilityError)),
+                           this, SLOT(_q_availabilityChanged(QtMultimedia::AvailabilityError)));
+                service->releaseControl(d->availabilityControl);
+            }
         }
     }
 
@@ -307,6 +328,7 @@ bool QMediaRecorder::setMediaObject(QMediaObject *object)
     d->audioControl = 0;
     d->videoControl = 0;
     d->metaDataControl = 0;
+    d->availabilityControl = 0;
 
     d->mediaObject = object;
 
@@ -344,6 +366,12 @@ bool QMediaRecorder::setMediaObject(QMediaObject *object)
                     }
                 }
 
+                d->availabilityControl = service->requestControl<QMediaAvailabilityControl*>();
+                if (d->availabilityControl) {
+                    connect(d->availabilityControl, SIGNAL(availabilityChanged(QtMultimedia::AvailabilityError)),
+                            this, SLOT(_q_availabilityChanged(QtMultimedia::AvailabilityError)));
+                }
+
                 connect(d->control, SIGNAL(stateChanged(QMediaRecorder::State)),
                         this, SLOT(_q_stateChanged(QMediaRecorder::State)));
 
@@ -399,24 +427,28 @@ bool QMediaRecorder::setMediaObject(QMediaObject *object)
 
 /*!
     Returns true if media recorder service ready to use.
+
+    \sa availabilityChanged()
 */
 bool QMediaRecorder::isAvailable() const
 {
-    if (d_func()->control != NULL)
+    return availabilityError() == QtMultimedia::NoError;
-        return true;
-    else
-        return false;
 }
 
 /*!
     Returns the availability error code.
+
+    \sa availabilityErrorChanged()
 */
 QtMultimedia::AvailabilityError QMediaRecorder::availabilityError() const
 {
-    if (d_func()->control != NULL)
+    if (d_func()->control == NULL)
-        return QtMultimedia::NoError;
-    else
         return QtMultimedia::ServiceMissingError;
+
+    if (d_func()->availabilityControl)
+        return d_func()->availabilityControl->availability();
+
+    return QtMultimedia::NoError;
 }
 
 QUrl QMediaRecorder::outputLocation() const
@@ -767,7 +799,7 @@ void QMediaRecorder::setEncodingSettings(const QAudioEncoderSettings &audio,
     Start recording.
 
     This is an asynchronous call, with signal
-    stateCahnged(QMediaRecorder::RecordingState) being emitted when recording
+    stateChanged(QMediaRecorder::RecordingState) being emitted when recording
     started, otherwise the error() signal is emitted.
 */
 
@@ -851,6 +883,18 @@ void QMediaRecorder::stop()
     Signals that an \a error has occurred.
 */
 
+/*!
+    \fn QMediaRecorder::availableChanged(bool available)
+
+    Signals that the media recorder is now available (if \a available is true), or not.
+*/
+
+/*!
+    \fn QMediaRecorder::availabilityErrorChanged(QtMultimedia::AvailabilityError availability)
+
+    Signals that the service availability has changed to \a availability.
+*/
+
 /*!
     \fn QMediaRecorder::mutedChanged(bool muted)
 

src/multimedia/recording/qmediarecorder.h

@@ -42,6 +42,7 @@
 #ifndef QMEDIARECORDER_H
 #define QMEDIARECORDER_H
 
+#include <qtmedianamespace.h>
 #include <qmediaobject.h>
 #include <qmediaencodersettings.h>
 #include <qmediabindableinterface.h>
@@ -173,6 +174,9 @@ Q_SIGNALS:
     void metaDataChanged();
     void metaDataChanged(const QString &key, const QVariant &value);
 
+    void availabilityChanged(bool available);
+    void availabilityErrorChanged(QtMultimedia::AvailabilityError error);
+
 protected:
     QMediaRecorder(QMediaRecorderPrivate &dd, QMediaObject *mediaObject, QObject *parent = 0);
     bool setMediaObject(QMediaObject *object);
@@ -188,6 +192,7 @@ private:
     Q_PRIVATE_SLOT(d_func(), void _q_updateActualLocation(const QUrl &))
     Q_PRIVATE_SLOT(d_func(), void _q_updateNotifyInterval(int))
     Q_PRIVATE_SLOT(d_func(), void _q_applySettings())
+    Q_PRIVATE_SLOT(d_func(), void _q_availabilityChanged(QtMultimedia::AvailabilityError))
 };
 
 QT_END_NAMESPACE

src/multimedia/recording/qmediarecorder_p.h

@@ -53,6 +53,7 @@ class QMediaContainerControl;
 class QAudioEncoderControl;
 class QVideoEncoderControl;
 class QMetaDataWriterControl;
+class QMediaAvailabilityControl;
 class QTimer;
 
 class QMediaRecorderPrivate
@@ -73,6 +74,7 @@ public:
     QAudioEncoderControl *audioControl;
     QVideoEncoderControl *videoControl;
     QMetaDataWriterControl *metaDataControl;
+    QMediaAvailabilityControl *availabilityControl;
 
     bool settingsChanged;
 
@@ -90,6 +92,7 @@ public:
     void _q_notify();
     void _q_updateNotifyInterval(int ms);
     void _q_applySettings();
+    void _q_availabilityChanged(QtMultimedia::AvailabilityError error);
 
     QMediaRecorder *q_ptr;
 };

tests/auto/unit/qmediaobject/qmediaobject.pro

@@ -3,5 +3,6 @@ TARGET = tst_qmediaobject
 QT += multimedia-private testlib
 
 include (../qmultimedia_common/mockrecorder.pri)
+include (../qmultimedia_common/mock.pri)
 
 SOURCES += tst_qmediaobject.cpp

tests/auto/unit/qmediaobject/tst_qmediaobject.cpp

@@ -53,12 +53,17 @@
 #include "mockmediarecorderservice.h"
 #include "mockmediaserviceprovider.h"
 #include "mockmetadatareadercontrol.h"
+#include "mockavailabilitycontrol.h"
 
-class QtTestMetaDataService : public QMediaService
+class QtTestMediaObjectService : public QMediaService
 {
     Q_OBJECT
 public:
-    QtTestMetaDataService(QObject *parent = 0):QMediaService(parent), metaDataRef(0), hasMetaData(true)
+    QtTestMediaObjectService(QObject *parent = 0, MockAvailabilityControl *availability = 0)
+        : QMediaService(parent)
+        , availabilityControl(availability)
+        , metaDataRef(0)
+        , hasMetaData(true)
     {
     }
 
@@ -66,6 +71,8 @@ public:
     {
         if (hasMetaData && qstrcmp(iid, QMetaDataReaderControl_iid) == 0)
             return &metaData;
+        else if (qstrcmp(iid, QMediaAvailabilityControl_iid) == 0)
+            return availabilityControl;
         else
             return 0;
     }
@@ -75,6 +82,7 @@ public:
     }
 
     MockMetaDataReaderControl metaData;
+    MockAvailabilityControl *availabilityControl;
     int metaDataRef;
     bool hasMetaData;
 };
@@ -329,7 +337,7 @@ void tst_QMediaObject::nullMetaDataControl()
     const QString titleKey(QLatin1String("Title"));
     const QString title(QLatin1String("Host of Seraphim"));
 
-    QtTestMetaDataService service;
+    QtTestMediaObjectService service;
     service.hasMetaData = false;
 
     QtTestMediaObject object(&service);
@@ -345,7 +353,7 @@ void tst_QMediaObject::nullMetaDataControl()
 
 void tst_QMediaObject::isMetaDataAvailable()
 {
-    QtTestMetaDataService service;
+    QtTestMediaObjectService service;
     service.metaData.setMetaDataAvailable(false);
 
     QtTestMediaObject object(&service);
@@ -367,7 +375,7 @@ void tst_QMediaObject::isMetaDataAvailable()
 
 void tst_QMediaObject::metaDataChanged()
 {
-    QtTestMetaDataService service;
+    QtTestMediaObjectService service;
     QtTestMediaObject object(&service);
 
     QSignalSpy changedSpy(&object, SIGNAL(metaDataChanged()));
@@ -408,7 +416,7 @@ void tst_QMediaObject::metaData()
     QFETCH(QString, title);
     QFETCH(QString, genre);
 
-    QtTestMetaDataService service;
+    QtTestMediaObjectService service;
     service.metaData.populateMetaData();
 
     QtTestMediaObject object(&service);
@@ -430,20 +438,64 @@ void tst_QMediaObject::metaData()
 
 void tst_QMediaObject::availability()
 {
-    QtTestMediaObject nullObject(0);
+    {
-    QCOMPARE(nullObject.isAvailable(), false);
+        QtTestMediaObject nullObject(0);
-    QCOMPARE(nullObject.availabilityError(), QtMultimedia::ServiceMissingError);
+        QCOMPARE(nullObject.isAvailable(), false);
+        QCOMPARE(nullObject.availabilityError(), QtMultimedia::ServiceMissingError);
+    }
 
-    QtTestMetaDataService service;
+    {
-    QtTestMediaObject object(&service);
+        QtTestMediaObjectService service;
-    QCOMPARE(object.isAvailable(), true);
+        QtTestMediaObject object(&service);
-    QCOMPARE(object.availabilityError(), QtMultimedia::NoError);
+        QCOMPARE(object.isAvailable(), true);
+        QCOMPARE(object.availabilityError(), QtMultimedia::NoError);
+    }
+
+    {
+        MockAvailabilityControl available(QtMultimedia::NoError);
+        QtTestMediaObjectService service(0, &available);
+        QtTestMediaObject object(&service);
+        QSignalSpy availabilitySpy(&object, SIGNAL(availabilityChanged(bool)));
+        QSignalSpy availabilityErrorSpy(&object, SIGNAL(availabilityChanged(bool)));
+
+        QCOMPARE(object.isAvailable(), true);
+        QCOMPARE(object.availabilityError(), QtMultimedia::NoError);
+
+        available.setAvailability(QtMultimedia::BusyError);
+        QCOMPARE(object.isAvailable(), false);
+        QCOMPARE(object.availabilityError(), QtMultimedia::BusyError);
+        QCOMPARE(availabilitySpy.count(), 1);
+        QCOMPARE(availabilityErrorSpy.count(), 1);
+
+        available.setAvailability(QtMultimedia::NoError);
+        QCOMPARE(object.isAvailable(), true);
+        QCOMPARE(object.availabilityError(), QtMultimedia::NoError);
+        QCOMPARE(availabilitySpy.count(), 2);
+        QCOMPARE(availabilityErrorSpy.count(), 2);
+    }
+
+    {
+        MockAvailabilityControl available(QtMultimedia::BusyError);
+        QtTestMediaObjectService service(0, &available);
+        QtTestMediaObject object(&service);
+        QSignalSpy availabilitySpy(&object, SIGNAL(availabilityChanged(bool)));
+        QSignalSpy availabilityErrorSpy(&object, SIGNAL(availabilityChanged(bool)));
+
+        QCOMPARE(object.isAvailable(), false);
+        QCOMPARE(object.availabilityError(), QtMultimedia::BusyError);
+
+        available.setAvailability(QtMultimedia::NoError);
+        QCOMPARE(object.isAvailable(), true);
+        QCOMPARE(object.availabilityError(), QtMultimedia::NoError);
+        QCOMPARE(availabilitySpy.count(), 1);
+        QCOMPARE(availabilityErrorSpy.count(), 1);
+    }
 }
 
  void tst_QMediaObject::service()
  {
      // Create the mediaobject with service.
-     QtTestMetaDataService service;
+     QtTestMediaObjectService service;
      QtTestMediaObject mediaObject1(&service);
 
      // Get service and Compare if it equal to the service passed as an argument in mediaObject1.

tests/auto/unit/qmediarecorder/tst_qmediarecorder.cpp

@@ -1059,17 +1059,55 @@ void tst_QMediaRecorder::testAudioSettingsDestructor()
 /* availabilityError() API test. */
 void tst_QMediaRecorder::testAvailabilityError()
 {
-    MockMediaRecorderService service(0, 0);
+    {
-    MockMediaObject object(0, &service);
+        MockMediaRecorderService service(0, 0);
-    QMediaRecorder recorder(&object);
+        MockMediaObject object(0, &service);
-    QCOMPARE(recorder.availabilityError(), QtMultimedia::ServiceMissingError);
+        QMediaRecorder recorder(&object);
+        QCOMPARE(recorder.availabilityError(), QtMultimedia::ServiceMissingError);
+        QCOMPARE(recorder.isAvailable(), false);
+    }
+    {
+        MockMediaRecorderControl recorderControl(0);
+        MockMediaRecorderService service1(0, &recorderControl);
+        service1.mockMetaDataControl->populateMetaData();
+        MockMediaObject object1(0, &service1);
+        QMediaRecorder recorder1(&object1);
+        QCOMPARE(recorder1.availabilityError(), QtMultimedia::NoError);
+        QCOMPARE(recorder1.isAvailable(), true);
+    }
+    {
+        MockMediaRecorderControl recorderControl(0);
+        MockMediaRecorderService service1(0, &recorderControl, 0);
+        service1.mockMetaDataControl->populateMetaData();
+        MockMediaObject object1(0, &service1);
+        QMediaRecorder recorder1(&object1);
 
-    MockMediaRecorderControl recorderControl(0);
+        QCOMPARE(recorder1.availabilityError(), QtMultimedia::NoError);
-    MockMediaRecorderService service1(0, &recorderControl);
+        QCOMPARE(recorder1.isAvailable(), true);
-    service1.mockMetaDataControl->populateMetaData();
+    }
-    MockMediaObject object1(0, &service1);
+    {
-    QMediaRecorder recorder1(&object1);
+        MockMediaRecorderControl recorderControl(0);
-    QCOMPARE(recorder1.availabilityError(), QtMultimedia::NoError);
+        MockAvailabilityControl availability(QtMultimedia::NoError);
+        MockMediaRecorderService service1(0, &recorderControl, &availability);
+        service1.mockMetaDataControl->populateMetaData();
+        MockMediaObject object1(0, &service1);
+        QMediaRecorder recorder1(&object1);
+
+        QSignalSpy spy(&object1, SIGNAL(availabilityErrorChanged(QtMultimedia::AvailabilityError)));
+
+        QCOMPARE(recorder1.availabilityError(), QtMultimedia::NoError);
+        QCOMPARE(recorder1.isAvailable(), true);
+
+        availability.setAvailability(QtMultimedia::BusyError);
+        QCOMPARE(recorder1.availabilityError(), QtMultimedia::BusyError);
+        QCOMPARE(recorder1.isAvailable(), false);
+        QCOMPARE(spy.count(), 1);
+
+        availability.setAvailability(QtMultimedia::NoError);
+        QCOMPARE(recorder1.availabilityError(), QtMultimedia::NoError);
+        QCOMPARE(recorder1.isAvailable(), true);
+        QCOMPARE(spy.count(), 2);
+    }
 }
 
 /* isAvailable() API test. */

tests/auto/unit/qmultimedia_common/mock.pri

@@ -4,4 +4,5 @@ INCLUDEPATH += $$PWD \
 HEADERS *= \
     ../qmultimedia_common/mockmediaserviceprovider.h \
     ../qmultimedia_common/mockmediaservice.h \
-    ../qmultimedia_common/mockmediaobject.h
+    ../qmultimedia_common/mockmediaobject.h \
+    ../qmultimedia_common/mockavailabilitycontrol.h

tests/auto/unit/qmultimedia_common/mockavailabilitycontrol.h

@@ -0,0 +1,75 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#ifndef MOCKAVAILABILITYCONTROL_H
+#define MOCKAVAILABILITYCONTROL_H
+
+#include <qmediaavailabilitycontrol.h>
+
+class MockAvailabilityControl : public QMediaAvailabilityControl
+{
+    Q_OBJECT
+
+public:
+    MockAvailabilityControl(QtMultimedia::AvailabilityError available)
+        : m_availability(available)
+    {
+
+    }
+
+    QtMultimedia::AvailabilityError availability() const
+    {
+        return m_availability;
+    }
+
+    void setAvailability(QtMultimedia::AvailabilityError availability)
+    {
+        if (m_availability != availability) {
+            m_availability = availability;
+            emit availabilityChanged(availability);
+        }
+    }
+
+    QtMultimedia::AvailabilityError m_availability;
+};
+
+#endif // MOCKAVAILABILITYCONTROL_H

tests/auto/unit/qmultimedia_common/mockmediarecorderservice.h

@@ -50,14 +50,16 @@
 #include "mockaudioendpointselector.h"
 #include "mockmediacontainercontrol.h"
 #include "mockmetadatawritercontrol.h"
+#include "mockavailabilitycontrol.h"
 
 class MockMediaRecorderService : public QMediaService
 {
     Q_OBJECT
 public:
-    MockMediaRecorderService(QObject *parent = 0, QMediaControl *control = 0):
+    MockMediaRecorderService(QObject *parent = 0, QMediaControl *control = 0, MockAvailabilityControl *availability = 0):
         QMediaService(parent),
         mockControl(control),
+        mockAvailabilityControl(availability),
         hasControls(true)
     {
         mockAudioEndpointSelector = new MockAudioEndpointSelector(parent);
@@ -81,6 +83,8 @@ public:
             return mockVideoEncoderControl;
         if (hasControls && qstrcmp(name, QMetaDataWriterControl_iid) == 0)
             return mockMetaDataControl;
+        if (hasControls && qstrcmp(name, QMediaAvailabilityControl_iid) == 0)
+            return mockAvailabilityControl;
 
         return 0;
     }
@@ -95,6 +99,8 @@ public:
     QMediaContainerControl     *mockFormatControl;
     QVideoEncoderControl    *mockVideoEncoderControl;
     MockMetaDataWriterControl *mockMetaDataControl;
+    MockAvailabilityControl *mockAvailabilityControl;
+
     bool hasControls;
 };
 

tests/auto/unit/qmultimedia_common/mockradiodatacontrol.h

@@ -57,15 +57,6 @@ public:
 
     using QRadioDataControl::error;
 
-    bool isAvailable() const
-    {
-        return true;
-    }
-    QtMultimedia::AvailabilityError availabilityError() const
-    {
-        return QtMultimedia::NoError;
-    }
-
     QRadioData::Error error() const
     {
         return m_err;

tests/auto/unit/qmultimedia_common/mockradiotunercontrol.h

@@ -66,15 +66,6 @@ public:
         return m_active ? QRadioTuner::ActiveState : QRadioTuner::StoppedState;
     }
 
-    bool isAvailable() const
-    {
-        return true;
-    }
-    QtMultimedia::AvailabilityError availabilityError() const
-    {
-        return QtMultimedia::NoError;
-    }
-
     QRadioTuner::Band band() const
     {
         return m_band;