Append some common subtitle track titles

In order to not end up with multiple subitle tracks simply named for e.g. "English", add some common postfix to it when detected in track title.

src/misc.js

@@ -19,6 +19,16 @@ var settings = new Gio.Settings({
 
 var maxVolume = 1.5;
 
+/* Keys must be lowercase */
+const subsTitles = {
+    sdh: 'SDH',
+    cc: 'CC',
+    traditional: 'Traditional',
+    simplified: 'Simplified',
+    honorifics: 'Honorifics',
+};
+const subsKeys = Object.keys(subsTitles);
+
 let inhibitCookie;
 
 function getClapperPath()
@@ -90,6 +100,17 @@ function getClapperThemeIconUri()
     return iconUri;
 }
 
+function getSubsTitle(infoTitle)
+{
+    if(!infoTitle)
+        return null;
+
+    const searchName = infoTitle.toLowerCase();
+    const found = subsKeys.find(key => key === searchName);
+
+    return (found) ? subsTitles[found] : null;
+}
+
 function loadCustomCss()
 {
     const clapperPath = getClapperPath();

src/widget.js

@@ -231,7 +231,11 @@ class ClapperWidget extends Gtk.Grid
                     break;
                 case GstClapper.ClapperSubtitleInfo:
                     type = 'subtitle';
-                    text = info.get_language() || 'Undetermined';
+                    const subsLang = info.get_language();
+                    text = (subsLang) ? subsLang.split(',')[0] : 'Undetermined';
+                    const subsTitle = Misc.getSubsTitle(info.get_title());
+                    if(subsTitle)
+                        text += ', ' + subsTitle;
                     break;
                 default:
                     debug(`unrecognized media info type: ${info.constructor}`);