Automatically expand hidden discussions when accessed via a permalink hash (closes #19304)

1 files changed, 23 insertions, 7 deletions

diff --git a/app/assets/javascripts/behaviors/toggler_behavior.js b/app/assets/javascripts/behaviors/toggler_behavior.js
index 1b7b63489ea..8ac1ba7665e 100644
--- a/app/assets/javascripts/behaviors/toggler_behavior.js
+++ b/app/assets/javascripts/behaviors/toggler_behavior.js
@@ -1,10 +1,26 @@
-(function() {
+(function(w) {
   $(function() {
-    return $("body").on("click", ".js-toggle-button", function(e) {
-      $(this).find('i').toggleClass('fa fa-chevron-down').toggleClass('fa fa-chevron-up');
-      $(this).closest(".js-toggle-container").find(".js-toggle-content").toggle();
-      return e.preventDefault();
+    $('.js-toggle-button').on('click', function(e) {
+      e.preventDefault();
+      $(this)
+        .find('.fa')
+          .toggleClass('fa-chevron-down fa-chevron-up')
+        .end()
+        .closest('.js-toggle-container')
+          .find('.js-toggle-content')
+            .toggle()
+      ;
     });
-  });
 
-}).call(this);
+    // If we're accessing a permalink, ensure it is not inside a
+    // closed js-toggle-container!
+    var hash = w.gl.utils.getLocationHash();
+    var anchor = hash && document.getElementById(hash);
+    var container = anchor && $(anchor).closest('.js-toggle-container');
+
+    if (container && container.find('.js-toggle-content').is(':hidden')) {
+      container.find('.js-toggle-button').trigger('click');
+      anchor.scrollIntoView();
+    }
+  });
+})(window);