Show composer after discussion is reloaded following login

framework/core/js/forum/src/components/discussion-page.js

@@ -11,8 +11,10 @@ import LoadingIndicator from 'flarum/components/loading-indicator';
 import DropdownSplit from 'flarum/components/dropdown-split';
 import Separator from 'flarum/components/separator';
 import listItems from 'flarum/helpers/list-items';
+import mixin from 'flarum/utils/mixin';
+import evented from 'flarum/utils/evented';
 
-export default class DiscussionPage extends Component {
+export default class DiscussionPage extends mixin(Component, evented) {
   /**
 
    */
@@ -102,6 +104,8 @@ export default class DiscussionPage extends Component {
     this.streamContent.goToNumber(this.currentNear, true);
 
     app.setTitle(discussion.title());
+
+    this.trigger('loaded');
   }
 
   onload(element, isInitialized, context) {

framework/core/js/forum/src/initializers/discussion-controls.js

@@ -25,7 +25,7 @@ export default function(app) {
     } else if (!app.session.user()) {
       app.modal.show(new LoginModal({
         message: 'You must be logged in to do that.',
-        callback: this.replyAction.bind(this)
+        callback: () => app.current.one('loaded', this.replyAction.bind(this, goToLast, forceRefresh))
       }));
     }
   }

framework/core/js/lib/utils/evented.js

@@ -23,6 +23,17 @@ export default {
     this.getHandlers(event).push(handler);
   },
 
+  /**
+
+   */
+  one(event, handler) {
+    var wrapper = function() {
+      handler.apply(this, arguments);
+      this.off(event, wrapper);
+    };
+    this.getHandlers(event).push(wrapper);
+  },
+
   /**
 
    */