FEATURE: add 'change ownership' button in post admin wrench

app/assets/javascripts/discourse/components/post-menu.js.es6

@@ -364,7 +364,9 @@ const PostMenuComponent = Ember.Component.extend(StringBuffer, {
           rebakePostIcon = iconHTML('cog'),
           rebakePostText = I18n.t('post.controls.rebake'),
           unhidePostIcon = iconHTML('eye'),
-          unhidePostText = I18n.t('post.controls.unhide');
+          unhidePostText = I18n.t('post.controls.unhide'),
+          changePostOwnerIcon = iconHTML('user'),
+          changePostOwnerText = I18n.t('post.controls.change_owner');
 
     const html = '<div class="post-admin-menu popup-menu">' +
                  '<h3>' + I18n.t('admin_title') + '</h3>' +
@@ -373,6 +375,7 @@ const PostMenuComponent = Ember.Component.extend(StringBuffer, {
                    (Discourse.User.currentProp('staff') ? '<li class="btn" data-action="togglePostType">' + postTypeIcon + postTypeText + '</li>' : '') +
                    '<li class="btn" data-action="rebakePost">' + rebakePostIcon + rebakePostText + '</li>' +
                    (post.hidden ? '<li class="btn" data-action="unhidePost">' + unhidePostIcon + unhidePostText + '</li>' : '') +
+                   (Discourse.User.currentProp('admin') ? '<li class="btn" data-action="changePostOwner">' + changePostOwnerIcon + changePostOwnerText + '</li>' : '') +
                  '</ul>' +
                '</div>';
 
@@ -404,6 +407,10 @@ const PostMenuComponent = Ember.Component.extend(StringBuffer, {
     this.sendAction("unhidePost", this.get("post"));
   },
 
+  clickChangePostOwner() {
+    this.sendAction("changePostOwner", this.get("post"));
+  },
+
   buttonForShowMoreActions() {
     return new Button('showMoreActions', 'show_more', 'ellipsis-h');
   },

app/assets/javascripts/discourse/controllers/change-owner.js.es6

@@ -42,7 +42,10 @@ export default Ember.Controller.extend(SelectedPostsCount, ModalFunctionality, {
       Discourse.Topic.changeOwners(this.get('topicController.model.id'), saveOpts).then(function() {
         // success
         self.send('closeModal');
+        self.get('topicController').send('deselectAll');
+        if (self.get('topicController.multiSelect')) {
           self.get('topicController').send('toggleMultiSelect');
+        }
         Em.run.next(() => { DiscourseURL.routeTo(self.get("topicController.model.url")); });
       }, function() {
         // failure

app/assets/javascripts/discourse/controllers/topic.js.es6

@@ -442,6 +442,11 @@ export default Ember.Controller.extend(SelectedPostsCount, BufferedContent, {
 
     unhidePost(post) {
       post.unhide();
+    },
+
+    changePostOwner(post) {
+      this.get('selectedPosts').addObject(post);
+      this.send('changeOwner');
     }
   },
 

app/assets/javascripts/discourse/templates/post.hbs

@@ -110,6 +110,7 @@
                     togglePostType="togglePostType"
                     rebakePost="rebakePost"
                     unhidePost="unhidePost"
+                    changePostOwner="changePostOwner"
                     toggleWhoLiked="toggleWhoLiked"
                     toggleWhoLikedTarget=view}}
       </div>

config/locales/client.en.yml

@@ -1420,6 +1420,7 @@ en:
         revert_to_regular: "Remove Staff Color"
         rebake: "Rebuild HTML"
         unhide: "Unhide"
+        change_owner: "Change Ownership"
 
       actions:
         flag: 'Flag'