add 't' hotkey

youtube/static/js/common.js

@@ -49,6 +49,65 @@ function doXhr(url, callback=null) {
     return xhr;
 }
 
+// https://stackoverflow.com/a/30810322
+function copyTextToClipboard(text) {
+  var textArea = document.createElement("textarea");
+
+  //
+  // *** This styling is an extra step which is likely not required. ***
+  //
+  // Why is it here? To ensure:
+  // 1. the element is able to have focus and selection.
+  // 2. if element was to flash render it has minimal visual impact.
+  // 3. less flakyness with selection and copying which **might** occur if
+  //    the textarea element is not visible.
+  //
+  // The likelihood is the element won't even render, not even a
+  // flash, so some of these are just precautions. However in
+  // Internet Explorer the element is visible whilst the popup
+  // box asking the user for permission for the web page to
+  // copy to the clipboard.
+  //
+
+  // Place in top-left corner of screen regardless of scroll position.
+  textArea.style.position = 'fixed';
+  textArea.style.top = 0;
+  textArea.style.left = 0;
+
+  // Ensure it has a small width and height. Setting to 1px / 1em
+  // doesn't work as this gives a negative w/h on some browsers.
+  textArea.style.width = '2em';
+  textArea.style.height = '2em';
+
+  // We don't need padding, reducing the size if it does flash render.
+  textArea.style.padding = 0;
+
+  // Clean up any borders.
+  textArea.style.border = 'none';
+  textArea.style.outline = 'none';
+  textArea.style.boxShadow = 'none';
+
+  // Avoid flash of white box if rendered for any reason.
+  textArea.style.background = 'transparent';
+
+
+  textArea.value = text;
+
+  document.body.appendChild(textArea);
+  textArea.focus();
+  textArea.select();
+
+  try {
+    var successful = document.execCommand('copy');
+    var msg = successful ? 'successful' : 'unsuccessful';
+    console.log('Copying text command was ' + msg);
+  } catch (err) {
+    console.log('Oops, unable to copy');
+  }
+
+  document.body.removeChild(textArea);
+}
+
 
 window.addEventListener('DOMContentLoaded', function() {
     cur_track_idx = getDefaultTranscriptTrackIdx();

youtube/static/js/hotkeys.js

@@ -36,6 +36,11 @@ function onKeyDown(e) {
         if (tt.mode == "showing") tt.mode = "disabled";
         else tt.mode = "showing";
     }
+    else if (c == "t") {
+        let video_id = JSON.parse(Q(".video-info input[name=video_info_list]").value).id
+        let ts = Math.floor(Q("video").currentTime);
+        copyTextToClipboard(`https://youtu.be/${video_id}?t=${ts}`);
+    }
 }
 
 window.addEventListener('DOMContentLoaded', function() {