Inital implementation of mpris2 interface for remote control.

src/mprisinterface.cpp

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+/*
+ * Copyright (C) 2019  Kevin Whitaker <eyecreate@eyecreate.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "mprisinterface.h"
+#include <qcryptographichash.h>
+
+MPRISInterface::MPRISInterface(QObject* parent) : QDBusAbstractAdaptor(parent)
+{
+}
+
+bool MPRISInterface::CanQuit()
+{
+    return false;
+}
+
+bool MPRISInterface::CanRaise()
+{
+    return false;
+}
+
+bool MPRISInterface::HasTrackList()
+{
+    return false; //TODO:this might have value implementing.
+}
+
+QString MPRISInterface::Identity()
+{
+    return "Simple Cast";
+}
+
+QStringList MPRISInterface::SupportedMimeTypes()
+{
+    return {"audio/ogg","audio/mpeg","audio/webm"};
+}
+
+QStringList MPRISInterface::SupportedUriSchemes()
+{
+    return {"https","http"};
+}
+
+
+
+MPRISPlayerInterface::MPRISPlayerInterface(MiniMediaPlayer *player,QObject* parent) : QDBusAbstractAdaptor(parent),player(player)
+{
+}
+
+bool MPRISPlayerInterface::CanControl()
+{
+    return true;
+}
+
+bool MPRISPlayerInterface::CanGoNext()
+{
+    return true;
+}
+
+bool MPRISPlayerInterface::CanGoPrevious()
+{
+    return false;
+}
+
+bool MPRISPlayerInterface::CanSeek()
+{
+    return false;
+}
+
+bool MPRISPlayerInterface::CanPause()
+{
+    return true;
+}
+
+bool MPRISPlayerInterface::CanPlay()
+{
+    return true;
+}
+
+double MPRISPlayerInterface::MaximumRate()
+{
+    return 1.0;
+}
+
+double MPRISPlayerInterface::MinimumRate()
+{
+    return 1.0;
+}
+
+void MPRISPlayerInterface::OpenUri(QString uri)
+{
+    //TODO:this might be another way to add tracks
+}
+
+void MPRISPlayerInterface::Next()
+{
+    player->nextTrack();
+}
+
+void MPRISPlayerInterface::Pause()
+{
+    player->playPauseTrack(false);
+}
+
+void MPRISPlayerInterface::Play()
+{
+    player->playPauseTrack(true);
+}
+
+void MPRISPlayerInterface::PlayPause()
+{
+    player->playPauseTrack(!player->isPlaying());
+}
+
+void MPRISPlayerInterface::Stop()
+{
+    //TODO: think if worth implementing.
+}
+
+QString MPRISPlayerInterface::PlaybackStatus()
+{
+    if(player->getTrackNames().size() == 0)
+    {
+        return "Stopped";
+    }
+    else if(player->isPlaying()) {
+        return "Playing";
+    }
+    else
+    {
+        return "Paused";
+    }
+}
+
+qlonglong MPRISPlayerInterface::Position()
+{
+    return player->getCurrentPosition() * 1000; //milliseconds to microseconds
+}
+
+double MPRISPlayerInterface::Rate()
+{
+    return 1.0;
+}
+
+double MPRISPlayerInterface::Volume()
+{
+    return player->getVolume();
+}
+
+void MPRISPlayerInterface::setVolume(double volume)
+{
+    if(volume < 0) player->setVolume(0);
+    player->setVolume(volume*100); //QMediaPlayer uses 0 to 100
+}
+
+QMap<QString, QDBusVariant> MPRISPlayerInterface::Metadata()
+{
+    QMap<QString,QDBusVariant> map;
+    map.insert("mpris:trackid",QDBusVariant("org.mpris.MediaPlayer2.simplecast.Player."+QString(QCryptographicHash::hash(player->getTrackNames()[0].toUtf8(),QCryptographicHash::Algorithm::Md5))));
+    map.insert("mpris:length",QDBusVariant(player->getTrackDuration()*1000));
+    map.insert("xesam:title",QDBusVariant(player->getTrackNames()[0]));
+    return map;
+}
+
+
+
+
+
+
+
+
+