Make embedded comments look nicer

app/assets/stylesheets/embed.css.scss

@@ -23,6 +23,7 @@ article.post {
       color: #4a6b82;
       font-size: 13px;
       margin: 0;
+      word-wrap: break-word;
     }
   }
 
@@ -36,11 +37,27 @@ article.post {
   }
 }
 
+.post-replies {
+  background-color: #eee;
+  padding: 5px;
+  display: inline-block;
+}
+
+.in-reply-to {
+  font-size: 13px;
+  margin-top: 4px;
+  display: inline-block;
+  color: #999;
+}
+
+.replies {
+  font-size: 15px;
+  color: #999;
+}
+
 header {
   padding: 10px 10px 20px 10px;
-
   font-size: 18px;
-
   border-bottom: 1px solid #ddd;
 }
 

app/controllers/embed_controller.rb

@@ -5,12 +5,12 @@ class EmbedController < ApplicationController
 
   layout 'embed'
 
-  def best
+  def comments
     embed_url = params.require(:embed_url)
     topic_id = TopicEmbed.topic_id_for_embed(embed_url)
 
     if topic_id
-      @topic_view = TopicView.new(topic_id, current_user, {best: 5})
+      @topic_view = TopicView.new(topic_id, current_user, limit: SiteSetting.embed_post_limit, exclude_first: true)
       @second_post_url = "#{@topic_view.topic.url}/2" if @topic_view
     else
       Jobs.enqueue(:retrieve_topic, user_id: current_user.try(:id), embed_url: embed_url)

app/models/post.rb

@@ -218,6 +218,13 @@ class Post < ActiveRecord::Base
     (quote_count == 0) && (reply_to_post_number.present?)
   end
 
+  def reply_to_post
+    return if reply_to_post_number.blank?
+    @reply_to_post ||= Post.where("topic_id = :topic_id AND post_number = :post_number",
+                                  topic_id: topic_id,
+                                  post_number: reply_to_post_number).first
+  end
+
   def reply_notification_target
     return if reply_to_post_number.blank?
     Post.where("topic_id = :topic_id AND post_number = :post_number AND user_id <> :user_id",

app/views/embed/comments.html.erb

@@ -1,6 +1,8 @@
 <header>
   <%- if @topic_view.posts.present? %>
-    <%= link_to(I18n.t('embed.title'), @second_post_url, class: 'button', target: '_blank') %>
+    <%= link_to(I18n.t('embed.continue'), @second_post_url, class: 'button', target: '_blank') %>
+    <span class='replies'><%= I18n.t('embed.replies', count: @topic_view.topic.posts_count) %></span>
+
   <%- else %>
     <%= link_to(I18n.t('embed.start_discussion'), @topic_view.topic.url, class: 'button', target: '_blank') %>
   <%- end if %>
@@ -12,17 +14,29 @@
   <%- @topic_view.posts.each do |post| %>
     <article class='post'>
       <%= link_to post.created_at.strftime("%e %b %Y"), post.url, class: 'post-date', target: "_blank" %>
+      <%- if post.reply_to_post.present? %>
+        <%= link_to I18n.t('embed.in_reply_to', username: post.reply_to_post.username), post.reply_to_post.url, class: 'in-reply-to', target: "_blank" %>
+      <%- end %>
+
       <div class='author'>
         <img src='<%= post.user.small_avatar_url %>'>
-        <h3><%= post.user.username %></h3>
+        <h3 class='username'><%= post.user.username %></h3>
       </div>
-      <div class='cooked'><%= raw post.cooked %></div>
+      <div class='cooked'>
+        <%= raw post.cooked %>
+
+        <%- if post.reply_count > 0 %>
+          <%= link_to I18n.t('embed.replies', count: post.reply_count), post.url, class: 'post-replies', target: "_blank" %>
+        <%- end %>
+      </div>
+
       <div style='clear: both'></div>
     </article>
   <%- end %>
 
   <footer>
     <%= link_to(I18n.t('embed.continue'), @second_post_url, class: 'button', target: '_blank') %>
+    <span class='replies'><%= I18n.t('embed.replies', count: @topic_view.topic.posts_count) %></span>
     <%= link_to(image_tag(SiteSetting.logo_url, class: 'logo'), Discourse.base_url, target: '_blank') %>
   </footer>
 

config/locales/server.en.yml

@@ -30,12 +30,15 @@ en:
   too_many_replies: "Sorry you can't reply any more times in that topic."
 
   embed:
-    title: "Discussion Highlights"
     start_discussion: "Begin the Discussion"
     continue: "Continue the Discussion"
     loading: "Loading Discussion..."
     permalink: "Permalink"
     imported_from: "Imported from: %{link}"
+    in_reply_to: "in reply to %{username}"
+    replies:
+      one: "1 reply"
+      other: "%{count} replies"
 
   too_many_mentions:
     zero: "Sorry, you can't mention other users."
@@ -773,6 +776,7 @@ en:
     feed_polling_enabled: "Whether to import a RSS/ATOM feed as posts"
     feed_polling_url: "URL of RSS/ATOM feed to import"
     embed_by_username: "Discourse username of the user who creates the topics"
+    embed_post_limit: "Maximum number of posts to embed"
 
   notification_types:
     mentioned: "%{display_username} mentioned you in %{link}"

config/routes.rb

@@ -242,7 +242,7 @@ Discourse::Application.routes.draw do
   get "topics/private-messages-sent/:username" => "list#private_messages_sent", as: "topics_private_messages_sent", constraints: {username: USERNAME_ROUTE_FORMAT}
   get "topics/private-messages-unread/:username" => "list#private_messages_unread", as: "topics_private_messages_unread", constraints: {username: USERNAME_ROUTE_FORMAT}
 
-  get 'embed/best' => 'embed#best'
+  get 'embed/comments' => 'embed#comments'
 
   # Topic routes
   get "t/:slug/:topic_id/wordpress" => "topics#wordpress", constraints: {topic_id: /\d+/}

config/site_settings.yml

@@ -356,6 +356,7 @@ embedding:
   feed_polling_enabled: false
   feed_polling_url: ''
   embed_by_username: ''
+  embed_post_limit: 100
 
 uncategorized:
   tos_url:

lib/topic_view.rb

@@ -37,7 +37,7 @@ class TopicView
   def canonical_path
     path = @topic.relative_url
     path << if @post_number
-      page = ((@post_number.to_i - 1) / SiteSetting.posts_per_page) + 1
+      page = ((@post_number.to_i - 1) / @limit) + 1
       (page > 1) ? "?page=#{page}" : ""
     else
       (@page && @page.to_i > 1) ? "?page=#{@page}" : ""
@@ -130,8 +130,12 @@ class TopicView
 
   def filter_posts_paged(page)
     page = [page, 1].max
-    min = SiteSetting.posts_per_page * (page - 1)
+    min = @limit * (page - 1)
-    max = (min + SiteSetting.posts_per_page) - 1
+
+    # Sometimes we don't care about the OP, for example when embedding comments
+    min = 1 if min == 0 && @exclude_first
+
+    max = (min + @limit) - 1
 
     filter_posts_in_range(min, max)
   end
@@ -317,12 +321,12 @@ class TopicView
     return nil if closest_index.nil?
 
     # Make sure to get at least one post before, even with rounding
-    posts_before = (SiteSetting.posts_per_page.to_f / 4).floor
+    posts_before = (@limit.to_f / 4).floor
     posts_before = 1 if posts_before.zero?
 
     min_idx = closest_index - posts_before
     min_idx = 0 if min_idx < 0
-    max_idx = min_idx + (SiteSetting.posts_per_page - 1)
+    max_idx = min_idx + (@limit - 1)
 
     # Get a full page even if at the end
     ensure_full_page(min_idx, max_idx)
@@ -331,7 +335,7 @@ class TopicView
   def ensure_full_page(min, max)
     upper_limit = (filtered_post_ids.length - 1)
     if max >= upper_limit
-      return (upper_limit - SiteSetting.posts_per_page) + 1, upper_limit
+      return (upper_limit - @limit) + 1, upper_limit
     else
       return min, max
     end

public/javascripts/embed.js

@@ -4,7 +4,7 @@
 
   var comments = document.getElementById('discourse-comments'),
       iframe = document.createElement('iframe');
-  iframe.src = discourseUrl + "embed/best?embed_url=" + encodeURIComponent(discourseEmbedUrl);
+  iframe.src = discourseUrl + "embed/comments?embed_url=" + encodeURIComponent(discourseEmbedUrl);
   iframe.id = 'discourse-embed-frame';
   iframe.width = "100%";
   iframe.frameBorder = "0";

spec/controllers/embed_controller_spec.rb

@@ -6,13 +6,13 @@ describe EmbedController do
   let(:embed_url) { "http://eviltrout.com/2013/02/10/why-discourse-uses-emberjs.html" }
 
   it "is 404 without an embed_url" do
-    get :best
+    get :comments
     response.should_not be_success
   end
 
   it "raises an error with a missing host" do
     SiteSetting.stubs(:embeddable_host).returns(nil)
-    get :best, embed_url: embed_url
+    get :comments, embed_url: embed_url
     response.should_not be_success
   end
 
@@ -22,7 +22,7 @@ describe EmbedController do
     end
 
     it "raises an error with no referer" do
-      get :best, embed_url: embed_url
+      get :comments, embed_url: embed_url
       response.should_not be_success
     end
 
@@ -42,13 +42,13 @@ describe EmbedController do
         retriever = mock
         TopicRetriever.expects(:new).returns(retriever)
         retriever.expects(:retrieve)
-        get :best, embed_url: embed_url
+        get :comments, embed_url: embed_url
       end
 
       it "creates a topic view when a topic_id is found" do
         TopicEmbed.expects(:topic_id_for_embed).returns(123)
-        TopicView.expects(:new).with(123, nil, {best: 5})
+        TopicView.expects(:new).with(123, nil, {limit: 100, exclude_first: true})
-        get :best, embed_url: embed_url
+        get :comments, embed_url: embed_url
       end
     end