FIX: rare user card exception

- trigger the shown logic in user card view
- some tweaks to user card show logic

app/assets/javascripts/discourse/components/text-overflow.js.es6

@@ -1,10 +1,12 @@
 export default Ember.Component.extend({
   _parse: function() {
-    this.$().find('hr').remove();
+    Ember.run.next(null, () => {
-    this.$().ellipsis();
+      this.$().find('hr').remove();
+      this.$().ellipsis();
+    });
   }.on('didInsertElement'),
 
-  render: function(buffer) {
+  render(buffer) {
     buffer.push(this.get('text'));
   }
 });

app/assets/javascripts/discourse/controllers/user-card.js.es6

@@ -35,35 +35,32 @@ export default Ember.Controller.extend({
   show(username, postId, target) {
     // XSS protection (should be encapsulated)
     username = username.toString().replace(/[^A-Za-z0-9_]/g, "");
-    const url = "/users/" + username;
 
     // Don't show on mobile
     if (Discourse.Mobile.mobileView) {
+      const url = "/users/" + username;
       Discourse.URL.routeTo(url);
       return;
     }
 
     const currentUsername = this.get('username'),
-        wasVisible = this.get('visible'),
+      wasVisible = this.get('visible'),
-        post = this.get('viewingTopic') && postId ? this.get('postStream').findLoadedPost(postId) : null;
+      previousTarget = this.get('cardTarget'),
-
+      post = this.get('viewingTopic') && postId ? this.get('postStream').findLoadedPost(postId) : null;
-    this.setProperties({ avatar: null, post: post, username: username });
-
-    if (wasVisible) {
-      if (target === this.get('cardTarget')) {
-        this.close();
-        return;  // Same target, close it without loading the new user card
-      } else {
-        this.close();
-      }
-    }
 
     if (username === currentUsername && this.get('userLoading') === username) {
       // debounce
       return;
     }
 
-    this.setProperties({ user: null, username, userLoading: username, cardTarget: target, topicPostCount: null });
+    if (wasVisible) {
+      this.close();
+      if (target === previousTarget) {
+        return;  // Same target, close it without loading the new user card
+      }
+    }
+
+    this.setProperties({ username, userLoading: username, cardTarget: target, post });
 
     const args = { stats: false };
     args.include_post_count_for = this.get('controllers.topic.model.id');
@@ -72,9 +69,7 @@ export default Ember.Controller.extend({
       if (user.topic_post_count) {
         this.set('topicPostCount', user.topic_post_count[args.include_post_count_for]);
       }
-      user = Discourse.User.create(user);
       this.setProperties({ user, avatar: user, visible: true });
-      this.appEvents.trigger('usercard:shown');
     }).catch((error) => {
       this.close();
       throw error;
@@ -84,7 +79,16 @@ export default Ember.Controller.extend({
   },
 
   close() {
-    this.setProperties({ visible: false, username: null, cardTarget: null });
+    this.setProperties({
+      visible: false,
+      user: null,
+      username: null,
+      avatar: null,
+      userLoading: null,
+      cardTarget: null,
+      post: null,
+      topicPostCount: null
+    });
   },
 
   actions: {

app/assets/javascripts/discourse/views/user-card.js.es6

@@ -3,8 +3,8 @@ import CleansUp from 'discourse/mixins/cleans-up';
 import afterTransition from 'discourse/lib/after-transition';
 
 const clickOutsideEventName = "mousedown.outside-user-card",
-      clickDataExpand = "click.discourse-user-card",
+  clickDataExpand = "click.discourse-user-card",
-      clickMention = "click.discourse-user-mention";
+  clickMention = "click.discourse-user-mention";
 
 export default Discourse.View.extend(CleansUp, {
   elementId: 'user-card',
@@ -30,30 +30,26 @@ export default Discourse.View.extend(CleansUp, {
     afterTransition(this.$(), this._hide.bind(this));
 
     $('html').off(clickOutsideEventName)
-             .on(clickOutsideEventName, (e) => {
+      .on(clickOutsideEventName, (e) => {
-      if (this.get('controller.visible')) {
+        if (this.get('controller.visible')) {
-        const $target = $(e.target);
+          const $target = $(e.target);
-        if ($target.closest('[data-user-card]').data('userCard') ||
+          if ($target.closest('[data-user-card]').data('userCard') ||
             $target.closest('a.mention').length > 0 ||
             $target.closest('#user-card').length > 0) {
-          return;
+            return;
+          }
+
+          this.get('controller').close();
         }
 
-        this.get('controller').close();
+        return true;
-      }
+      });
-
-      return true;
-    });
 
     const expand = (username, $target) => {
       const postId = $target.parents('article').data('post-id'),
-          user = this.get('controller').show(username, postId, $target[0]);
+        user = this.get('controller').show(username, postId, $target[0]);
       if (user !== undefined) {
-        user.then(() => {
+        user.then( () => this._willShow($target) ).catch( () => this._hide() );
-          this._willShow($target);
-        }).catch(() => {
-          this._hide();
-        });
       } else {
         this._hide();
       }
@@ -64,7 +60,7 @@ export default Discourse.View.extend(CleansUp, {
       if (e.ctrlKey || e.metaKey) { return; }
 
       const $target = $(e.currentTarget),
-            username = $target.data('user-card');
+        username = $target.data('user-card');
       return expand(username, $target);
     });
 
@@ -72,10 +68,9 @@ export default Discourse.View.extend(CleansUp, {
       if (e.ctrlKey || e.metaKey) { return; }
 
       const $target = $(e.target),
-            username = $target.text().replace(/^@/, '');
+        username = $target.text().replace(/^@/, '');
       return expand(username, $target);
     });
-
     this.appEvents.on('usercard:shown', this, '_shown');
   }.on('didInsertElement'),
 
@@ -91,7 +86,7 @@ export default Discourse.View.extend(CleansUp, {
   _willShow(target) {
     if (!target) { return; }
     const width = this.$().width();
-    Em.run.schedule('afterRender', () => {
+    Ember.run.schedule('afterRender', () => {
       if (target) {
         let position = target.offset();
         if (position) {
@@ -106,6 +101,7 @@ export default Discourse.View.extend(CleansUp, {
           position.top -= $('#main-outlet').offset().top;
           this.$().css(position);
         }
+        this.appEvents.trigger('usercard:shown');
       }
     });
   },
@@ -132,7 +128,7 @@ export default Discourse.View.extend(CleansUp, {
     $('html').off(clickOutsideEventName);
 
     $('#main').off(clickDataExpand)
-              .off(clickMention);
+      .off(clickMention);
 
     this.appEvents.off('usercard:shown', this, '_shown');
   }.on('willDestroyElement')