default to last textTrack

2 files changed, 12 insertions, 2 deletions

diff --git a/youtube/static/js/common.js b/youtube/static/js/common.js
index f2e62fe..4c7ee51 100644
--- a/youtube/static/js/common.js
+++ b/youtube/static/js/common.js
@@ -20,4 +20,13 @@ function getActiveTranscriptTrackIdx() {
     }
     return cur_tt_idx;
 }
-function getActiveTranscriptTrack() { return Q("video").textTracks[getActiveTranscriptTrackIdx()]; }
\ No newline at end of file
+function getActiveTranscriptTrack() { return Q("video").textTracks[getActiveTranscriptTrackIdx()]; }
+
+function getDefaultTranscriptTrackIdx() {
+  let tts = Q("video").textTracks;
+  return tts.length - 1;
+}
+
+window.addEventListener('DOMContentLoaded', function() {
+    cur_tt_idx = getDefaultTranscriptTrackIdx();
+});
diff --git a/youtube/static/js/transcript-table.js b/youtube/static/js/transcript-table.js
index 235b1e4..6b57911 100644
--- a/youtube/static/js/transcript-table.js
+++ b/youtube/static/js/transcript-table.js
@@ -87,6 +87,7 @@ window.addEventListener('DOMContentLoaded', function() {
     option.appendChild(text(tt.label));
     select_tt.appendChild(option);
   }
+  select_tt.selectedIndex = getDefaultTranscriptTrackIdx();
   select_tt.addEventListener("change", loadCues);
   divR.appendChild(select_tt);
 
@@ -96,7 +97,7 @@ window.addEventListener('DOMContentLoaded', function() {
   divR.appendChild(table_tt);
 
   tts.addEventListener("change", (e) => {
-    console.log(e);
+    // console.log(e);
     var idx = getActiveTranscriptTrackIdx();  // sadly not provided by 'e'
     if (tts[idx].mode == "showing") {
       select_tt.selectedIndex = idx;