Use component prototypes instead of instances

This means the component instance is created in the template, meaning
properties can be overridden in the view helper. It also just makes
more sense - a view instance doesn’t need to exist until it is rendered
in the template.

ember/app/components/composer/composer-discussion.js

@@ -16,7 +16,7 @@ export default ComposerBody.extend({
   title: '',
 
   populateControls: function(items) {
-    var title = Ember.Component.create({
+    var title = Ember.Component.extend({
       tagName: 'h3',
       layout: precompileTemplate('{{ui/text-input value=component.title class="form-control" placeholder=component.titlePlaceholder disabled=component.disabled autoGrow=true}}'),
       component: this

ember/app/components/composer/composer-edit.js

@@ -15,7 +15,7 @@ export default ComposerBody.extend({
   originalContent: Ember.computed.oneWay('post.content'),
 
   populateControls: function(controls) {
-    var title = Ember.Component.create({
+    var title = Ember.Component.extend({
       tagName: 'h3',
       layout: precompileTemplate('Editing Post #{{component.post.number}} in <em>{{discussion.title}}</em>'),
       discussion: this.get('post.discussion'),

ember/app/components/composer/composer-reply.js

@@ -12,7 +12,7 @@ export default ComposerBody.extend({
   submitLabel: 'Post Reply',
 
   populateControls: function(items) {
-    var title = Ember.Component.create({
+    var title = Ember.Component.extend({
       tagName: 'h3',
       layout: precompileTemplate('Replying to <em>{{component.discussion.title}}</em>'),
       component: this

ember/app/components/discussion/post-comment.js

@@ -49,10 +49,10 @@ export default Ember.Component.extend(FadeIn, HasItemLists, UseComposer, {
 
   populateHeader: function(items) {
     var properties = this.getProperties('post');
-    items.pushObjectWithTag(PostHeaderUser.create(properties), 'user');
-    items.pushObjectWithTag(PostHeaderMeta.create(properties), 'meta');
-    items.pushObjectWithTag(PostHeaderEdited.create(properties), 'edited');
-    items.pushObjectWithTag(PostHeaderToggle.create(properties, {parent: this}), 'toggle');
+    items.pushObjectWithTag(PostHeaderUser.extend(properties), 'user');
+    items.pushObjectWithTag(PostHeaderMeta.extend(properties), 'meta');
+    items.pushObjectWithTag(PostHeaderEdited.extend(properties), 'edited');
+    items.pushObjectWithTag(PostHeaderToggle.extend(properties, {parent: this}), 'toggle');
   },
 
   savePost: function(post, data) {

ember/app/components/index/discussion-listing.js

@@ -64,7 +64,8 @@ export default Ember.Component.extend(FadeIn, HasItemLists, {
       layoutName: 'components/index/discussion-info/terminal-post',
       discussion: Ember.computed.alias('parent.discussion'),
       displayLastPost: Ember.computed.alias('parent.displayLastPost'),
-    }).create({parent: this}), 'terminalPost');
+      parent: this
+    }), 'terminalPost');
   },
 
   actions: {

ember/app/components/ui/item-list.js

@@ -14,7 +14,7 @@ export default Ember.Component.extend({
       return [];
     }
     items.forEach(function(item) {
-      item.set('isListItem', item.get('tagName') === 'li');
+      item.reopenClass({isListItem: item.proto().tagName === 'li'});
     });
     return items;
   })

ember/app/components/ui/text-editor.js

@@ -22,7 +22,7 @@ export default Ember.Component.extend(HasItemLists, {
   },
 
   populateControls: function(items) {
-    this.addActionItem(items, 'submit', this.get('submitLabel')).set('className', 'btn btn-primary');
+    this.addActionItem(items, 'submit', this.get('submitLabel')).reopen({className: 'btn btn-primary'});
   },
 
   actions: {

ember/app/controllers/discussion.js

@@ -50,7 +50,7 @@ export default Ember.Controller.extend(Ember.Evented, UseComposerMixin, {
         // Otherwise, we'll create an alert message to inform the user
         // that their reply has been posted, containing a button which
         // will transition to their new post when clicked.
-        var message = AlertMessage.create({
+        var message = AlertMessage.extend({
           type: 'success',
           message: 'Your reply was posted.',
           buttons: [{

ember/app/mixins/has-item-lists.js

@@ -21,6 +21,7 @@ export default Ember.Mixin.create({
   populateItemList: function(name) {
     var items = TaggedArray.create();
     this.trigger('populate'+name.charAt(0).toUpperCase()+name.slice(1), items);
+    this.removeUnneededSeparatorItems(items);
     return items;
   },
 
@@ -36,18 +37,26 @@ export default Ember.Mixin.create({
       }
     });
 
-    var itemInstance = item.create();
+    items.pushObjectWithTag(item, tag);
 
-    items.pushObjectWithTag(itemInstance, tag);
-
-    return itemInstance;
+    return item;
   },
 
   addSeparatorItem: function(items) {
-    var length = items.get('length');
-    var last = items.objectAt(length - 1);
-    if (last && !(last instanceof SeparatorItem)) {
-      items.pushObject(SeparatorItem.create());
+    items.pushObject(SeparatorItem);
+  },
+
+  removeUnneededSeparatorItems: function(items) {
+    var prevItem = null;
+    items.forEach(function(item) {
+      if (prevItem === SeparatorItem && item === SeparatorItem) {
+        items.removeObject(item);
+        return;
+      }
+      prevItem = item;
+    });
+    if (prevItem === SeparatorItem) {
+      items.removeObject(prevItem);
     }
   }
 });

ember/app/mixins/use-composer.js

@@ -27,7 +27,7 @@ export default Ember.Mixin.create({
 
   showErrorsAsAlertMessages: function(errors) {
     for (var i in errors) {
-      var message = AlertMessage.create({
+      var message = AlertMessage.extend({
         type: 'warning',
         message: errors[i]
       });

ember/app/views/application.js

@@ -60,7 +60,7 @@ export default Ember.View.extend(HasItemLists, {
   populateHeaderSecondary: function(items) {
   	var controller = this.get('controller');
 
-  	items.pushObjectWithTag(SearchInput.create({
+  	items.pushObjectWithTag(SearchInput.extend({
       placeholder: 'Search Forum',
       controller: controller,
       valueBinding: Ember.Binding.oneWay('controller.searchQuery'),
@@ -69,7 +69,7 @@ export default Ember.View.extend(HasItemLists, {
     }), 'search');
 
     if (this.get('controller.session.isAuthenticated')) {
-      items.pushObjectWithTag(UserDropdown.create({
+      items.pushObjectWithTag(UserDropdown.extend({
         user: this.get('controller.session.user'),
         logout: function() { controller.send('invalidateSession'); }
       }), 'user');
@@ -81,7 +81,7 @@ export default Ember.View.extend(HasItemLists, {
 
   populateFooterPrimary: function(items) {
     var addStatistic = function(label, number) {
-      items.pushObjectWithTag(ForumStatistic.create({
+      items.pushObjectWithTag(ForumStatistic.extend({
         label: label,
         number: number
       }), 'statistics.'+label);
@@ -93,6 +93,6 @@ export default Ember.View.extend(HasItemLists, {
   },
 
   populateFooterSecondary: function(items) {
-    items.pushObjectWithTag(PoweredBy.create(), 'poweredBy');
+    items.pushObjectWithTag(PoweredBy, 'poweredBy');
   }
 });

ember/app/views/composer.js

@@ -233,7 +233,7 @@ export default Ember.View.extend(HasItemLists, {
   populateControls: function(items) {
     var view = this;
     var addControl = function(tag, title, icon) {
-      view.addActionItem(items, tag, null, icon).set('className', 'btn btn-icon btn-link').set('title', title);
+      view.addActionItem(items, tag, null, icon).reopen({className: 'btn btn-icon btn-link', title: title});
     };
 
     if (this.get('fullscreen')) {

ember/app/views/discussion.js

@@ -48,13 +48,13 @@ export default Ember.View.extend(HasItemLists, {
   // ------------------------------------------------------------------------
 
   populateSidebar: function(items) {
-    items.pushObjectWithTag(DropdownSplit.create({
+    items.pushObjectWithTag(DropdownSplit.extend({
       items: this.populateItemList('controls'),
       icon: 'reply',
       buttonClass: 'btn-primary'
     }), 'controls');
 
-    items.pushObjectWithTag(StreamScrubber.create({
+    items.pushObjectWithTag(StreamScrubber.extend({
       streamContent: this.get('streamContent')
     }), 'scrubber');
   },

ember/app/views/index.js

@@ -13,7 +13,7 @@ export default Ember.View.extend(HasItemLists, {
   itemLists: ['sidebar'],
 
   didInsertElement: function() {
-    this.set('hero', WelcomeHero.create({
+    this.set('hero', WelcomeHero.extend({
       title: this.get('controller.controllers.application.forumTitle'),
       description: 'Thanks for stopping by!'
     }));
@@ -73,26 +73,26 @@ export default Ember.View.extend(HasItemLists, {
   }),
 
   populateSidebar: function(items) {
-    this.addActionItem(items, 'newDiscussion', 'Start a Discussion', 'edit').set('className', 'btn btn-primary new-discussion');
+    this.addActionItem(items, 'newDiscussion', 'Start a Discussion', 'edit').reopen({className: 'btn btn-primary new-discussion'});
 
     var nav = this.populateItemList('nav');
-    items.pushObjectWithTag(DropdownSelect.create({ items: nav }), 'nav');
+    items.pushObjectWithTag(DropdownSelect.extend({items: nav}), 'nav');
   },
 
   populateNav: function(items) {
-    items.pushObjectWithTag(NavItem.create({
+    items.pushObjectWithTag(NavItem.extend({
       label: 'All Discussions',
       icon: 'comments-o',
       layout: precompileTemplate('{{#link-to "index" (query-params filter="")}}{{fa-icon icon}} {{label}} <span class="count">{{badge}}</span>{{/link-to}}')
     }), 'all');
 
-    items.pushObjectWithTag(NavItem.create({
+    items.pushObjectWithTag(NavItem.extend({
       label: 'Private',
       icon: 'envelope-o',
       layout: precompileTemplate('{{#link-to "index" (query-params filter="private")}}{{fa-icon icon}} {{label}} <span class="count">{{badge}}</span>{{/link-to}}')
     }), 'private');
 
-    items.pushObjectWithTag(NavItem.create({
+    items.pushObjectWithTag(NavItem.extend({
       label: 'Following',
       icon: 'star',
       layout: precompileTemplate('{{#link-to "index" (query-params filter="following")}}{{fa-icon icon}} {{label}} <span class="count">{{badge}}</span>{{/link-to}}')