Show an error is an internet radio has no sources to load

airsonic-main/src/main/resources/org/airsonic/player/i18n/ResourceBundle_en.properties

@@ -99,6 +99,7 @@ playlist.empty=Play queue empty.
 playlist.toast.appendtoplaylist=Playlist updated.
 playlist.toast.saveasplaylist=Playlist saved.
 playlist.toast.saveplayqueue=Play queue saved.
+playlist.toast.radioerror=Sorry, an error occurred while trying to load the internet radio.
 playlist.missing=Missing
 
 playlist2.noplaylists=You haven't created any playlists yet.

airsonic-main/src/main/resources/org/airsonic/player/i18n/ResourceBundle_fr.properties

@@ -99,6 +99,7 @@ playlist.empty=Liste de lecture vide
 playlist.toast.appendtoplaylist=Playlist mise \u00e0 jour.
 playlist.toast.saveasplaylist=Playlist sauvegard\u00e9e.
 playlist.toast.saveplayqueue=Liste de lecture sauvegard\u00e9.
+playlist.toast.radioerror=D\u00E9sol\u00E9, une erreur s'est produite pendant le chargement de la radio.
 playlist.missing=Manquant
 
 playlist2.noplaylists=Vous n'avez pas encore cr\u00e9er de playlist.

airsonic-main/src/main/webapp/WEB-INF/jsp/playQueue.jsp

@@ -467,6 +467,12 @@
         shuffleRadioEnabled = playQueue.shuffleRadioEnabled;
         internetRadioEnabled = playQueue.internetRadioEnabled;
 
+        // If an internet radio has no sources, display a message to the user.
+        if (internetRadioEnabled && songs.length == 0) {
+            top.main.$().toastmessage("showErrorToast", "<fmt:message key="playlist.toast.radioerror"/>");
+            onStop();
+        }
+
         if ($("#start")) {
             $("#start").toggle(!playQueue.stopEnabled);
             $("#stop").toggle(playQueue.stopEnabled);