Adds support for dynamic composer messages.

app/assets/javascripts/discourse/controllers/composer_controller.js

@@ -7,10 +7,16 @@
   @module Discourse
 **/
 Discourse.ComposerController = Discourse.Controller.extend({
-  needs: ['modal', 'topic'],
+  needs: ['modal', 'topic', 'composerMessages'],
 
   replyAsNewTopicDraft: Em.computed.equal('model.draftKey', Discourse.Composer.REPLY_AS_NEW_TOPIC_KEY),
 
+
+  init: function() {
+    this._super();
+    this.set('similarTopics', Em.A());
+  },
+
   togglePreview: function() {
     this.get('model').togglePreview();
   },
@@ -94,7 +100,6 @@ Discourse.ComposerController = Discourse.Controller.extend({
         composerController.destroyDraft();
       }
 
-
       opts = opts || {};
       composerController.close();
 
@@ -112,51 +117,27 @@ Discourse.ComposerController = Discourse.Controller.extend({
     });
   },
 
-  closeEducation: function() {
-    this.set('educationClosed', true);
-  },
-
-  closeSimilar: function() {
-    this.set('similarClosed', true);
-  },
-
-  similarVisible: function() {
-    if (this.get('similarClosed')) return false;
-    if (this.get('model.composeState') !== Discourse.Composer.OPEN) return false;
-    return (this.get('similarTopics.length') || 0) > 0;
-  }.property('similarTopics.length', 'similarClosed', 'model.composeState'),
-
-  newUserEducationVisible: function() {
-    if (!this.get('educationContents')) return false;
-    if (this.get('model.composeState') !== Discourse.Composer.OPEN) return false;
-    if (!this.present('model.reply')) return false;
-    if (this.get('educationClosed')) return false;
-    return true;
-  }.property('model.composeState', 'model.reply', 'educationClosed', 'educationContents'),
-
-  fetchNewUserEducation: function() {
+  _considerNewUserEducation: function() {
 
     // We don't show education when editing a post.
     if (this.get('model.editingPost')) return;
 
     // If creating a topic, use topic_count, otherwise post_count
     var count = this.get('model.creatingTopic') ? Discourse.User.currentProp('topic_count') : Discourse.User.currentProp('reply_count');
-    if (count >= Discourse.SiteSettings.educate_until_posts) {
-      this.set('educationClosed', true);
-      this.set('educationContents', '');
-      return;
-    }
+    if (count >= Discourse.SiteSettings.educate_until_posts) { return; }
 
     // The user must have typed a reply
     if (!this.get('typedReply')) return;
 
-    this.set('educationClosed', false);
-
     // If visible update the text
-    var educationKey = this.get('model.creatingTopic') ? 'new-topic' : 'new-reply';
-    var composerController = this;
+    var educationKey = this.get('model.creatingTopic') ? 'new-topic' : 'new-reply',
+        messageController = this.get('controllers.composerMessages');
+
     Discourse.ajax("/education/" + educationKey, {dataType: 'html'}).then(function(result) {
-      composerController.set('educationContents', result);
+      messageController.popup({
+        templateName: 'composer/education',
+        body: result
+      });
     });
 
   }.observes('typedReply', 'model.creatingTopic', 'currentUser.reply_count'),
@@ -176,16 +157,25 @@ Discourse.ComposerController = Discourse.Controller.extend({
     // We don't care about similar topics unless creating a topic
     if (!this.get('model.creatingTopic')) return;
 
-    var body = this.get('model.reply');
-    var title = this.get('model.title');
+    var body = this.get('model.reply'),
+        title = this.get('model.title');
 
     // Ensure the fields are of the minimum length
     if (body.length < Discourse.SiteSettings.min_body_similar_length) return;
     if (title.length < Discourse.SiteSettings.min_title_similar_length) return;
 
-    var composerController = this;
-    Discourse.Topic.findSimilarTo(title, body).then(function (topics) {
-      composerController.set('similarTopics', topics);
+    var messageController = this.get('controllers.composerMessages'),
+        similarTopics = this.get('similarTopics');
+
+    Discourse.Topic.findSimilarTo(title, body).then(function (newTopics) {
+      similarTopics.clear();
+      similarTopics.pushObjects(newTopics);
+
+      messageController.popup({
+        templateName: 'composer/similar_topics',
+        similarTopics: similarTopics,
+        extraClass: 'similar-topics'
+      });
     });
 
   },
@@ -211,8 +201,6 @@ Discourse.ComposerController = Discourse.Controller.extend({
     var promise = opts.promise || Ember.Deferred.create();
     opts.promise = promise;
     this.set('typedReply', false);
-    this.set('similarTopics', null);
-    this.set('similarClosed', false);
 
     if (!opts.draftKey) {
       alert("composer was opened without a draft key");

app/assets/javascripts/discourse/controllers/composer_messages_controller.js

@@ -0,0 +1,31 @@
+/**
+  A controller for displaying messages as the user composes a message.
+
+  @class ComposerMessagesController
+  @extends Ember.ArrayController
+  @namespace Discourse
+  @module Discourse
+**/
+Discourse.ComposerMessagesController = Ember.ArrayController.extend({
+  needs: ['composer'],
+
+  init: function() {
+    this._super();
+    this.set('messagesByTemplate', {});
+  },
+
+  popup: function(msg) {
+    var messagesByTemplate = this.get('messagesByTemplate'),
+        existing = messagesByTemplate[msg.templateName];
+
+    if (!existing) {
+      this.pushObject(msg);
+      messagesByTemplate[msg.templateName] = msg;
+    }
+  },
+
+  closeMessage: function(message) {
+    this.removeObject(message);
+  }
+
+});

app/assets/javascripts/discourse/templates/composer.js.handlebars

@@ -2,23 +2,7 @@
 
 <div class='contents'>
 
-  <div class='composer-popup-container'>
-    <div id='new-user-education' class='composer-popup' style='display: none'>
-      <a href='#' {{action closeEducation}} class='close'><i class='icon icon-remove-sign'></i></a>
-      {{{educationContents}}}
-    </div>
-
-    <div id='similar-topics' class='composer-popup' style='display: none'>
-      <a href='#' {{action closeSimilar}} class='close'><i class='icon icon-remove-sign'></i></a>
-      <h3>{{i18n composer.similar_topics}}<h3>
-
-      <ul class='topics'>
-        {{#each similarTopics}}
-          <li>{{{topicLink this}}} <span class='posts-count'>({{{i18n topic.filters.n_posts count="posts_count"}}})</span></li>
-        {{/each}}
-      </ul>
-    </div>
-  </div>
+  {{render composerMessages}}
 
   <div class='control'>
     <a href='#' class='toggler' {{action toggle bubbles=false}} title='{{i18n composer.toggler}}'></a>

app/assets/javascripts/discourse/templates/composer/education.js.handlebars

@@ -0,0 +1,2 @@
+<a href='#' {{action closeMessage this}} class='close'><i class='icon icon-remove-sign'></i></a>
+{{{body}}}

app/assets/javascripts/discourse/templates/composer/similar_topics.js.handlebars

@@ -0,0 +1,8 @@
+<a href='#' {{action closeMessage this}} class='close'><i class='icon icon-remove-sign'></i></a>
+<h3>{{i18n composer.similar_topics}}<h3>
+
+<ul class='topics'>
+  {{#each similarTopics}}
+    <li>{{{topicLink this}}} <span class='posts-count'>({{{i18n topic.filters.n_posts count="posts_count"}}})</span></li>
+  {{/each}}
+</ul>

app/assets/javascripts/discourse/views/composer/composer_messages_view.js

@@ -0,0 +1,34 @@
+/**
+  Renders a popup messages on the composer
+
+  @class ComposerMessagesView
+  @extends Discourse.View
+  @namespace Discourse
+  @module Discourse
+**/
+Discourse.ComposerMessagesView = Ember.CollectionView.extend({
+  classNameBindings: [':composer-popup-container', 'hidden'],
+  content: Em.computed.alias('controller.content'),
+
+  hidden: Em.computed.not('controller.controllers.composer.model.viewOpen'),
+
+  itemViewClass: Discourse.View.extend({
+    classNames: ['composer-popup', 'hidden'],
+    templateName: Em.computed.alias('content.templateName'),
+
+    init: function() {
+      this._super();
+      this.set('context', this.get('content'));
+
+      if (this.get('content.extraClass')) {
+        this.get('classNames').pushObject(this.get('content.extraClass'));
+      }
+    },
+
+    didInsertElement: function() {
+      var replyControl = $('#reply-control');
+      this.$().css('bottom', (replyControl.height() || 0) + "px").slideDown('fast');
+    }
+  }),
+});
+

app/assets/javascripts/discourse/views/composer/composer_view.js

@@ -67,24 +67,6 @@ Discourse.ComposerView = Discourse.View.extend({
     });
   }.observes('model.reply', 'model.hidePreview'),
 
-  newUserEducationVisibilityChanged: function() {
-    var $panel = $('#new-user-education');
-    if (this.get('controller.newUserEducationVisible')) {
-      $panel.slideDown('fast');
-    } else {
-      $panel.slideUp('fast');
-    }
-  }.observes('controller.newUserEducationVisible'),
-
-  similarVisibilityChanged: function() {
-    var $panel = $('#similar-topics');
-    if (this.get('controller.similarVisible')) {
-      $panel.slideDown('fast');
-    } else {
-      $panel.slideUp('fast');
-    }
-  }.observes('controller.similarVisible'),
-
   movePanels: function(sizePx) {
     $('.composer-popup').css('bottom', sizePx);
   },

app/assets/javascripts/main_include.js

@@ -15,6 +15,7 @@
 //= require_tree ./discourse/mixins
 //= require ./discourse/components/computed
 //= require ./discourse/views/view
+//= require ./discourse/views/container_view
 //= require ./discourse/components/debounce
 //= require ./discourse/models/model
 //= require ./discourse/models/user_action

app/assets/stylesheets/desktop/compose.css.scss

@@ -51,7 +51,7 @@
   }
 }
 
-#similar-topics {
+.similar-topics {
   background-color: #b5e8fd;
   border: 1px solid darken(#b5e8fd, 10%);
 

app/assets/stylesheets/mobile/compose.css.scss

@@ -12,7 +12,7 @@
 display: none;
 }
 
-.composer-popup, #similar-topics {
+.composer-popup {
 display: none;
 }
 
@@ -99,7 +99,7 @@ display: none;
   a.cancel {
     text-decoration: underline;
     padding-left: 7px;
-    float: left; 
+    float: left;
     margin-top: 6px;
   }
   .control-row {