Add js snippet to check related checkboxes

Author: charsbar

lib/pause_2017/templates/user/files/delete.html.ep

@@ -50,6 +50,17 @@
 var List = new List('files', {
   valueNames: ['file', 'size', 'modified']
 });
+
+document.querySelectorAll('input[type=checkbox]').forEach(function(e) {
+  e.addEventListener('change', function(ev) {
+    var checked = ev.currentTarget.checked;
+    var dist = ev.currentTarget.getAttribute('data-dist');
+    document.querySelectorAll('input[data-dist='+dist+']').forEach(function(e) {
+      e.checked = checked;
+    });
+  })
+});
+
 % end
 % end