service/mpris: reset position timestamps on seek

Moving the onPositionUpdated callback to a bpPosition binding caused
it not to fire when Position was changed to the same value, which can
happen when quickly changing tracks before the player has sent a new
position.

This reverts the above change while still updating position on seek.

src/services/mpris/player.cpp

@@ -237,7 +237,7 @@ void MprisPlayer::setPosition(qreal position) {
 		this->player->Seek(target - pos);
 	}
 
-	this->bpPosition = target;
+	this->setPosition(target);
 }
 
 void MprisPlayer::onPositionUpdated() {
@@ -248,11 +248,16 @@ void MprisPlayer::onPositionUpdated() {
 	if (firstChange) emit this->positionSupportedChanged();
 }
 
+void MprisPlayer::setPosition(qlonglong position) {
+	this->bpPosition = position;
+	this->onPositionUpdated();
+}
+
 void MprisPlayer::onExportedPositionChanged() {
 	if (!this->lengthSupported()) emit this->lengthChanged();
 }
 
-void MprisPlayer::onSeek(qlonglong time) { this->bpPosition = time; }
+void MprisPlayer::onSeek(qlonglong time) { this->setPosition(time); }
 
 qreal MprisPlayer::length() const {
 	if (this->bInternalLength == -1) {

src/services/mpris/player.hpp

@@ -391,6 +391,8 @@ private slots:
 private:
 	void onMetadataChanged();
 	void onPositionUpdated();
+	// call instead of setting bpPosition
+	void setPosition(qlonglong position);
 	void requestPositionUpdate() { this->pPosition.requestUpdate(); };
 
 	// clang-format off
@@ -457,7 +459,7 @@ private slots:
 	QS_DBUS_PROPERTY_BINDING(MprisPlayer, pCanSeek, bpCanSeek, playerProperties, "CanSeek");
 	QS_DBUS_PROPERTY_BINDING(MprisPlayer, pCanGoNext, bpCanGoNext, playerProperties, "CanGoNext");
 	QS_DBUS_PROPERTY_BINDING(MprisPlayer, pCanGoPrevious, bpCanGoPrevious, playerProperties, "CanGoPrevious");
-	QS_DBUS_PROPERTY_BINDING(MprisPlayer, qlonglong, pPosition, bpPosition, playerProperties, "Position", false);
+	QS_DBUS_PROPERTY_BINDING(MprisPlayer, qlonglong, pPosition, bpPosition, onPositionUpdated, playerProperties, "Position", false);
 	QS_DBUS_PROPERTY_BINDING(MprisPlayer, pVolume, bVolume, playerProperties, "Volume", false);
 	QS_DBUS_PROPERTY_BINDING(MprisPlayer, pMetadata, bpMetadata, playerProperties, "Metadata");
 	QS_DBUS_PROPERTY_BINDING(MprisPlayer, pPlaybackStatus, bpPlaybackStatus, playerProperties, "PlaybackStatus");
@@ -466,8 +468,6 @@ private slots:
 	QS_DBUS_PROPERTY_BINDING(MprisPlayer, pMinRate, bMinRate, playerProperties, "MinimumRate", false);
 	QS_DBUS_PROPERTY_BINDING(MprisPlayer, pMaxRate, bMaxRate, playerProperties, "MaximumRate", false);
 	QS_DBUS_PROPERTY_BINDING(MprisPlayer, pShuffle, bShuffle, playerProperties, "Shuffle", false);
-
-	QS_BINDING_SUBSCRIBE_METHOD(MprisPlayer, bpPosition, onPositionUpdated, onValueChanged);
 	// clang-format on
 
 	QDateTime lastPositionTimestamp;