Use custom getUriProtocol function

Gst.Uri.get_protocol function is very simple. It just splits string by ":" and return the first part. We can do the same in JS and by doing that we do not have to initialize GStreamer just to get this function.

src/misc.js

@@ -140,6 +140,13 @@ function getFileFromLocalUri(uri)
     return file;
 }
 
+/* JS replacement of "Gst.Uri.get_protocol" */
+function getUriProtocol(uri)
+{
+    const arr = uri.split(':');
+    return (arr.length > 1) ? arr[0] : null;
+}
+
 function encodeHTML(text)
 {
     return text.replace(/&/g, '&')

src/player.js

@@ -141,7 +141,7 @@ class ClapperPlayer extends GstClapper.Clapper
     {
         this.customVideoTitle = null;
 
-        if(Gst.Uri.get_protocol(uri) !== 'file') {
+        if(Misc.getUriProtocol(uri) !== 'file') {
             const [isYouTubeUri, videoId] = YouTube.checkYouTubeUri(uri);
 
             if(!isYouTubeUri)
@@ -256,7 +256,7 @@ class ClapperPlayer extends GstClapper.Clapper
 
         /* Check local file existence */
         if(
-            Gst.Uri.get_protocol(uri) === 'file'
+            Misc.getUriProtocol(uri) === 'file'
             && !Misc.getFileFromLocalUri(uri)
         )
             return;

src/playlist.js

@@ -1,5 +1,6 @@
-const { Gdk, GLib, GObject, Gst, Gtk, Pango } = imports.gi;
+const { Gdk, GLib, GObject, Gtk, Pango } = imports.gi;
 const Debug = imports.src.debug;
+const Misc = imports.src.misc;
 
 const { debug, warn } = Debug;
 
@@ -245,7 +246,7 @@ class ClapperPlaylistItem extends Gtk.ListBoxRow
         this.isLocalFile = false;
 
         let filename;
-        if(Gst.Uri.get_protocol(uri) === 'file') {
+        if(Misc.getUriProtocol(uri) === 'file') {
             filename = GLib.path_get_basename(
                 GLib.filename_from_uri(uri)[0]
             );