Replaced QMediaRecorderControl::play/stop/pause with setState

This allows to introduce new states without breaking BC.

Change-Id: I03c064cec92d6745b251a51cfb301e7f01f4b765
Reviewed-by: Ling Hu <ling.hu@nokia.com>

src/multimedia/controls/qmediarecordercontrol.cpp

@@ -135,21 +135,9 @@ QMediaRecorderControl::~QMediaRecorderControl()
 */
 
 /*!
-    \fn void QMediaRecorderControl::record()
+    \fn void QMediaRecorderControl::setState(QMediaRecorder::State state)
 
-    Start recording.
-*/
-
-/*!
-    \fn void QMediaRecorderControl::pause()
-
-    Pause recording.
-*/
-
-/*!
-    \fn void QMediaRecorderControl::stop()
-
-    Stop recording.
+    Set the media recorder \a state.
 */
 
 /*!

src/multimedia/controls/qmediarecordercontrol.h

@@ -84,9 +84,7 @@ Q_SIGNALS:
     void error(int error, const QString &errorString);
 
 public Q_SLOTS:
-    virtual void record() = 0;
-    virtual void pause() = 0;
-    virtual void stop() = 0;
+    virtual void setState(QMediaRecorder::State state) = 0;
     virtual void setMuted(bool muted) = 0;
 
 protected:

src/multimedia/recording/qmediarecorder.cpp

@@ -841,7 +841,7 @@ void QMediaRecorder::record()
     d->errorString = QString();
 
     if (d->control)
-        d->control->record();
+        d->control->setState(RecordingState);
 }
 
 /*!
@@ -857,7 +857,7 @@ void QMediaRecorder::pause()
 {
     Q_D(QMediaRecorder);
     if (d->control)
-        d->control->pause();
+        d->control->setState(PausedState);
 }
 
 /*!
@@ -870,7 +870,7 @@ void QMediaRecorder::stop()
 {
     Q_D(QMediaRecorder);
     if (d->control)
-        d->control->stop();
+        d->control->setState(StoppedState);
 }
 
 /*!

src/plugins/audiocapture/audiomediarecordercontrol.cpp

@@ -93,38 +93,33 @@ qint64 AudioMediaRecorderControl::duration() const
     return m_session->position();
 }
 
-void AudioMediaRecorderControl::record()
-{
-    if (m_state != QMediaRecorder::RecordingState) {
-        m_state = QMediaRecorder::RecordingState;
-        m_session->record();
-        updateStatus();
-    }
-}
-
-void AudioMediaRecorderControl::pause()
-{
-    if (m_state != QMediaRecorder::PausedState) {
-        m_state = QMediaRecorder::PausedState;
-        m_session->pause();
-        updateStatus();
-    }
-}
-
-void AudioMediaRecorderControl::stop()
-{
-    if (m_state != QMediaRecorder::StoppedState) {
-        m_state = QMediaRecorder::StoppedState;
-        m_session->pause();
-        updateStatus();
-    }
-}
-
 bool AudioMediaRecorderControl::isMuted() const
 {
     return false;
 }
 
+void AudioMediaRecorderControl::setState(QMediaRecorder::State state)
+{
+    if (m_state == state)
+        return;
+
+    m_state = state;
+
+    switch (state) {
+    case QMediaRecorder::StoppedState:
+        m_session->stop();
+        break;
+    case QMediaRecorder::PausedState:
+        m_session->pause();
+        break;
+    case QMediaRecorder::RecordingState:
+        m_session->record();
+        break;
+    }
+
+    updateStatus();
+}
+
 void AudioMediaRecorderControl::setMuted(bool)
 {
 }
@@ -141,5 +136,5 @@ void AudioMediaRecorderControl::updateStatus()
 void AudioMediaRecorderControl::handleSessionError(int code, const QString &description)
 {
     emit error(code, description);
-    stop();
+    setState(QMediaRecorder::StoppedState);
 }

src/plugins/audiocapture/audiomediarecordercontrol.h

@@ -71,9 +71,7 @@ public:
     void applySettings() {}
 
 public slots:
-    void record();
-    void pause();
-    void stop();
+    void setState(QMediaRecorder::State state);
     void setMuted(bool);
 
 private slots:

src/plugins/gstreamer/mediacapture/qgstreamerrecordercontrol.cpp

@@ -126,6 +126,21 @@ qint64 QGstreamerRecorderControl::duration() const
     return m_session->duration();
 }
 
+void QGstreamerRecorderControl::setState(QMediaRecorder::State state)
+{
+    switch (state) {
+    case QMediaRecorder::StoppedState:
+        stop();
+        break;
+    case QMediaRecorder::PausedState:
+        pause();
+        break;
+    case QMediaRecorder::RecordingState:
+        record();
+        break;
+    }
+}
+
 void QGstreamerRecorderControl::record()
 {
     if (m_state == QMediaRecorder::RecordingState)

src/plugins/gstreamer/mediacapture/qgstreamerrecordercontrol.h

@@ -71,6 +71,7 @@ public:
     void applySettings();
 
 public slots:
+    void setState(QMediaRecorder::State state);
     void record();
     void pause();
     void stop();

tests/auto/unit/qmultimedia_common/mockmediarecordercontrol.h

@@ -130,6 +130,22 @@ public slots:
         emit statusChanged(m_status);
     }
 
+    void setState(QMediaRecorder::State state)
+    {
+        switch (state) {
+        case QMediaRecorder::StoppedState:
+            stop();
+            break;
+        case QMediaRecorder::PausedState:
+            pause();
+            break;
+        case QMediaRecorder::RecordingState:
+            record();
+            break;
+        }
+    }
+
+
     void setMuted(bool muted)
     {
         if (m_muted != muted)