[nemo-qml-plugin-systemsettings] Add DateTimeSettings::ready property. Contributes to JB#33755

This property indicates when the initial timed signal has been
received and the other property values have been initialized.

src/datetimesettings.cpp

@@ -79,6 +79,11 @@ void DateTimeSettings::onGetWallClockInfoFinished(QDBusPendingCallWatcher *watch
     watcher->deleteLater();
 }
 
+bool DateTimeSettings::ready() const
+{
+    return m_timedInfoValid;
+}
+
 void DateTimeSettings::setTime(int hour, int minute)
 {
     QDate currentDate = QDate::currentDate();
@@ -195,6 +200,8 @@ bool DateTimeSettings::setTime(time_t time)
 
 void DateTimeSettings::onTimedSignal(const Maemo::Timed::WallClock::Info &info, bool time_changed)
 {
+    const bool prevReady = ready();
+
     m_timedInfo = info;
     m_timedInfoValid = true;
 
@@ -219,4 +226,8 @@ void DateTimeSettings::onTimedSignal(const Maemo::Timed::WallClock::Info &info,
         m_timezone = newTimezone;
         emit timezoneChanged();
     }
+
+    if (prevReady != ready()) {
+        emit readyChanged();
+    }
 }

src/datetimesettings.h

@@ -45,6 +45,7 @@ class SYSTEMSETTINGS_EXPORT DateTimeSettings: public QObject
     Q_OBJECT
 
     Q_ENUMS(HourMode)
+    Q_PROPERTY(bool ready READ ready NOTIFY readyChanged)
     Q_PROPERTY(bool automaticTimeUpdate READ automaticTimeUpdate WRITE setAutomaticTimeUpdate NOTIFY automaticTimeUpdateChanged)
     Q_PROPERTY(bool automaticTimezoneUpdate READ automaticTimezoneUpdate WRITE setAutomaticTimezoneUpdate NOTIFY automaticTimezoneUpdateChanged)
     Q_PROPERTY(QString timezone READ timezone WRITE setTimezone NOTIFY timezoneChanged)
@@ -61,6 +62,8 @@ public:
     Q_INVOKABLE void setTime(int hour, int minute);
     Q_INVOKABLE void setDate(const QDate &date);
 
+    bool ready() const;
+
     bool automaticTimeUpdate();
     void setAutomaticTimeUpdate(bool enable);
 
@@ -73,6 +76,7 @@ public:
     Q_INVOKABLE void setHourMode(HourMode mode);
 
 signals:
+    void readyChanged();
     void timeChanged();
     void automaticTimeUpdateChanged();
     void automaticTimezoneUpdateChanged();