Add update for appimages.

src/qml/MainMenu.qml

@@ -183,6 +183,10 @@ MenuBar {
             onTriggered: loadDialog.open()
             shortcut: keybinds.openURI
         }
+        Action {
+            text: translate.getTranslation("UPDATE_APPIMAGE", i18n.language)
+            onTriggered: utils.updateAppImage()
+        }
         Action {
             text: translate.getTranslation("EXIT", i18n.language)
             onTriggered: Qt.quit()

src/qml/Utils/translations.js

@@ -59,7 +59,9 @@ var translations = {
         DOUBLE_TAP_TO_SEEK_BY: "Seek by",
         FONT: "Font",
         SUBTITLES_FONT_SIZE: "Subtitles Font Size",
-        UI_FADE_TIME: "UI Fade Time (ms)"
+        UI_FADE_TIME: "UI Fade Time (ms)",
+        UPDATE: "Update (AppImage Only)"
+
     },
     spanish: {
         OPEN_FILE: "Abrir archivo",

src/utils.cpp

@@ -36,6 +36,20 @@ launchAboutQt()
   qapp->aboutQt();
 }
 
+void updateAppImage()
+{
+  QString program =
+    QProcessEnvironment::systemEnvironment().value("APPDIR", "") +
+    "/usr/bin/appimageupdatetool";
+  QProcess updater;
+  updater.setProcessChannelMode(QProcess::ForwardedChannels);
+  updater.start(program,
+                QStringList() << QProcessEnvironment::systemEnvironment().value(
+                  "APPIMAGE", ""));
+  updater.waitForFinished();
+  qApp->exit();
+}
+
 // https://www.youtube.com/watch?v=nXaxk27zwlk&feature=youtu.be&t=56m34s
 inline int
 fast_mod(const int input, const int ceil)

src/utils.hpp

@@ -16,6 +16,8 @@ QString
 createTimestamp(int seconds);
 void
 launchAboutQt();
+void
+updateAppImage();
 }
 
 class UtilsClass : public QObject
@@ -25,6 +27,8 @@ public slots:
   void SetDPMS(bool on) { Utils::SetDPMS(on); };
   void AlwaysOnTop(WId wid, bool on) { Utils::AlwaysOnTop(wid, on); };
   void launchAboutQt() { Utils::launchAboutQt(); };
+  void updateAppImage() { Utils::updateAppImage(); };
+
 
   QString createTimestamp(int seconds)
   {