[Backend] Move more code to backend.

src/MpvPlayerBackend.cpp

@@ -329,6 +329,17 @@ MpvPlayerBackend::on_mpv_events()
   }
 }
 
+void
+MpvPlayerBackend::updateDurationStringText()
+{
+  findChild<QObject*>("timeLabel")
+    ->setProperty("text",
+                  QString("%1  / %2 (%3x)")
+                    .arg(createTimestamp(getProperty("time-pos")).toString(),
+                         createTimestamp(getProperty("duration")).toString(),
+                         getProperty("speed").toString()));
+}
+
 void
 MpvPlayerBackend::handle_mpv_event(mpv_event* event)
 {
@@ -338,15 +349,13 @@ MpvPlayerBackend::handle_mpv_event(mpv_event* event)
       if (strcmp(prop->name, "time-pos") == 0) {
         if (prop->format == MPV_FORMAT_DOUBLE) {
           double time = *(double*)prop->data;
-          QMetaObject::invokeMethod(
+          updateDurationStringText();
-            this, "setProgressBarValue", Q_ARG(QVariant, time));
+          findChild<QObject*>("progressBar")->setProperty("value", time);
         }
       } else if (strcmp(prop->name, "duration") == 0) {
         if (prop->format == MPV_FORMAT_DOUBLE) {
           double time = *(double*)prop->data;
-          Q_ARG(QVariant, "txt1"),
+          findChild<QObject*>("progressBar")->setProperty("to", time);
-            QMetaObject::invokeMethod(
-              this, "setProgressBarEnd", Q_ARG(QVariant, time));
         }
       } else if (strcmp(prop->name, "volume") == 0) {
         if (prop->format == MPV_FORMAT_DOUBLE) {
@@ -363,13 +372,12 @@ MpvPlayerBackend::handle_mpv_event(mpv_event* event)
       } else if (strcmp(prop->name, "media-title") == 0) {
         if (prop->format == MPV_FORMAT_STRING) {
           char* title = *(char**)prop->data;
-          QMetaObject::invokeMethod(this, "setTitle", Q_ARG(QVariant, title));
+          findChild<QObject*>("titleLabel")->setProperty("text", title);
         }
       } else if (strcmp(prop->name, "sub-text") == 0) {
         if (prop->format == MPV_FORMAT_STRING) {
           char* subs = *(char**)prop->data;
-          QMetaObject::invokeMethod(
+          findChild<QObject*>("nativeSubs")->setProperty("text", subs);
-            this, "setSubtitles", Q_ARG(QVariant, subs));
         }
       } else if (strcmp(prop->name, "demuxer-cache-duration") == 0) {
         if (prop->format == MPV_FORMAT_DOUBLE) {

src/MpvPlayerBackend.h

@@ -37,6 +37,7 @@ public slots:
   void prevPlaylistItem();
   void nextPlaylistItem();
   void toggleOnTop();
+  void updateDurationStringText();
   QVariant getTracks() const;
 
   QVariant getTrack(const QString& track);

src/qml/main.qml

@@ -168,18 +168,6 @@ ApplicationWindow {
             }
         }
 
-        function setProgressBarEnd(val) {
-            progressBar.to = val
-        }
-
-        function setProgressBarValue(val) {
-            progressBar.value = val
-            timeLabel.text = player.createTimestamp(
-                        val) + " / " + player.createTimestamp(
-                        progressBar.to) + " (" + parseFloat(
-                        player.getProperty("speed").toFixed(2)) + "x)"
-        }
-
         function skipToNinth(val) {
             var skipto = 0
             if (val != 0) {
@@ -226,14 +214,6 @@ ApplicationWindow {
             }
         }
 
-        function setTitle(title) {
-            titleLabel.text = title
-        }
-
-        function setSubtitles(subs) {
-            nativeSubs.text = subs
-        }
-
         function isAnyMenuOpen() {
             return settingsMenu.visible || fileMenuBarItem.opened
                     || playbackMenuBarItem.opened || viewMenuBarItem.opened
@@ -864,6 +844,7 @@ ApplicationWindow {
 
             Text {
                 id: titleLabel
+                objectName: "titleLabel"
                 text: translate.getTranslation("TITLE", i18n.language)
                 color: "white"
                 width: parent.width
@@ -926,6 +907,7 @@ ApplicationWindow {
 
                     Label {
                         id: nativeSubs
+                        objectName: "nativeSubs"
                         onWidthChanged: {
 
                             if (width > parent.width - 10)
@@ -990,6 +972,7 @@ ApplicationWindow {
 
             Slider {
                 id: progressBar
+                objectName: "progressBar"
                 to: 1
                 value: 0.0
                 anchors.bottom: parent.top
@@ -1206,6 +1189,7 @@ ApplicationWindow {
 
             Text {
                 id: timeLabel
+                objectName: "timeLabel"
                 text: "0:00 / 0:00"
                 color: "white"
                 anchors.left: volumeBar.right