Re-introduce likes on comments

.rubocop.yml

@@ -73,6 +73,11 @@ Layout/HashAlignment:
   EnforcedHashRocketStyle: table
   EnforcedColonStyle: table
 
+# This rule makes haml files less readable, as there is no 'end' there.
+Layout/CaseIndentation:
+  Exclude:
+    - "app/views/**/*"
+
 # Mixing the styles looks just silly.
 Style/HashSyntax:
  EnforcedStyle: ruby19_no_mixed_keys

app/assets/javascripts/app/collections/comments.js

@@ -12,12 +12,17 @@ app.collections.Comments = Backbone.Collection.extend({
 
   make : function(text) {
     var self = this;
-    var comment = new app.models.Comment({ "text": text });
+    var comment = new app.models.Comment({"text": text}, {post: this.post});
 
     var deferred = comment.save({}, {
       url: "/posts/"+ this.post.id +"/comments",
       success: function() {
         comment.set({author: app.currentUser.toJSON(), parent: self.post });
+
+        // Need interactions after make
+        comment.interactions = new app.models.LikeInteractions(
+          _.extend({comment: comment, post: self.post}, comment.get("interactions"))
+        );
         self.add(comment);
       }
     });

app/assets/javascripts/app/collections/likes.js

@@ -4,7 +4,11 @@ app.collections.Likes = Backbone.Collection.extend({
   model: app.models.Like,
 
   initialize : function(models, options) {
-    this.url = "/posts/" + options.post.id + "/likes"; //not delegating to post.url() because when it is in a stream collection it delegates to that url
+    // A comment- like has a post reference and a comment reference
+    this.url = (options.comment != null) ?
+      // not delegating to post.url() because when it is in a stream collection it delegates to that url
+      "/comments/" + options.comment.id + "/likes" :
+      "/posts/" + options.post.id + "/likes";
   }
 });
 // @license-end

app/assets/javascripts/app/models/comment.js

@@ -1,6 +1,17 @@
 // @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL-v3-or-Later
 
 app.models.Comment = Backbone.Model.extend({
-  urlRoot: "/comments"
+  urlRoot: "/comments",
+
+  initialize: function(model, options) {
+    options = options || {};
+    this.post = model.post || options.post || this.collection.post;
+    this.interactions = new app.models.LikeInteractions(
+      _.extend({comment: this, post: this.post}, this.get("interactions"))
+      );
+    this.likes = this.interactions.likes;
+    this.likesCount = this.attributes.likes_count;
+    this.userLike = this.interactions.userLike();
+  }
 });
 // @license-end

app/assets/javascripts/app/models/like_interactions.js

@@ -0,0 +1,58 @@
+// This class contains code extracted from interactions.js to factorize likes management between posts and comments
+
+app.models.LikeInteractions = Backbone.Model.extend({
+
+  initialize: function(options) {
+    this.likes = new app.collections.Likes(this.get("likes"), options);
+    this.post = options.post;
+  },
+
+  likesCount: function() {
+    return this.get("likes_count");
+  },
+
+  userLike: function() {
+    return this.likes.select(function(like) {
+      return like.get("author") && like.get("author").guid === app.currentUser.get("guid");
+    })[0];
+  },
+
+  toggleLike: function() {
+    if (this.userLike()) {
+      this.unlike();
+    } else {
+      this.like();
+    }
+  },
+
+  like: function() {
+    var self = this;
+    this.likes.create({}, {
+      success: function() {
+        self.post.set({participation: true});
+        self.trigger("change");
+        self.set({"likes_count": self.get("likes_count") + 1});
+        self.likes.trigger("change");
+      },
+      error: function(model, response) {
+        app.flashMessages.handleAjaxError(response);
+      }
+    });
+  },
+
+  unlike: function() {
+    var self = this;
+    this.userLike().destroy({
+      success: function() {
+        // TODO: unlike always sets participation to false in the UI, even if there are more participations left
+        //  in the backend (from manually participating, other likes or comments)
+        self.post.set({participation: false});
+        self.trigger("change");
+        self.set({"likes_count": self.get("likes_count") - 1});
+        self.likes.trigger("change");
+      },
+      error: function(model, response) {
+        app.flashMessages.handleAjaxError(response);
+      }});
+  }
+});

app/assets/javascripts/app/models/post.js

@@ -4,7 +4,7 @@ app.models.Post = Backbone.Model.extend(_.extend({}, app.models.formatDateMixin,
   urlRoot : "/posts",
 
   initialize : function() {
-    this.interactions = new app.models.Post.Interactions(_.extend({post : this}, this.get("interactions")));
+    this.interactions = new app.models.PostInteractions(_.extend({post: this}, this.get("interactions")));
     this.delegateToInteractions();
   },
 

app/assets/javascripts/app/models/post/interactions.js → app/assets/javascripts/app/models/post_interactions.js

@@ -1,75 +1,27 @@
 // @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL-v3-or-Later
 
-//require ../post
-
-app.models.Post.Interactions = Backbone.Model.extend({
-  initialize : function(options){
+app.models.PostInteractions = app.models.LikeInteractions.extend({
+  initialize: function(options) {
+    app.models.LikeInteractions.prototype.initialize.apply(this, arguments);
     this.post = options.post;
-    this.comments = new app.collections.Comments(this.get("comments"), {post : this.post});
-    this.likes = new app.collections.Likes(this.get("likes"), {post : this.post});
-    this.reshares = new app.collections.Reshares(this.get("reshares"), {post : this.post});
-  },
-
-  likesCount : function(){
-    return this.get("likes_count");
+    this.comments = new app.collections.Comments(this.get("comments"), {post: this.post});
+    this.reshares = new app.collections.Reshares(this.get("reshares"), {post: this.post});
   },
 
-  resharesCount : function(){
+  resharesCount: function() {
     return this.get("reshares_count");
   },
 
-  commentsCount : function(){
+  commentsCount: function() {
     return this.get("comments_count");
   },
 
-  userLike : function(){
-    return this.likes.select(function(like){
-      return like.get("author") && like.get("author").guid === app.currentUser.get("guid");
-    })[0];
-  },
-
-  userReshare : function(){
+  userReshare: function() {
     return this.reshares.select(function(reshare){
       return reshare.get("author") && reshare.get("author").guid === app.currentUser.get("guid");
     })[0];
   },
 
-  toggleLike : function() {
-    if(this.userLike()) {
-      this.unlike();
-    } else {
-      this.like();
-    }
-  },
-
-  like : function() {
-    var self = this;
-    this.likes.create({}, {
-      success: function() {
-        self.post.set({participation: true});
-        self.trigger("change");
-        self.set({"likes_count" : self.get("likes_count") + 1});
-        self.likes.trigger("change");
-      },
-      error: function(model, response) {
-        app.flashMessages.handleAjaxError(response);
-      }
-    });
-  },
-
-  unlike : function() {
-    var self = this;
-    this.userLike().destroy({success : function() {
-      self.post.set({participation: false});
-      self.trigger('change');
-      self.set({"likes_count" : self.get("likes_count") - 1});
-      self.likes.trigger("change");
-    },
-      error: function(model, response) {
-        app.flashMessages.handleAjaxError(response);
-    }});
-  },
-
   comment: function(text, options) {
     var self = this;
     options = options || {};
@@ -109,7 +61,7 @@ app.models.Post.Interactions = Backbone.Model.extend({
       });
   },
 
-  userCanReshare : function(){
+  userCanReshare: function() {
     var isReshare = this.post.get("post_type") === "Reshare"
       , rootExists = (isReshare ? this.post.get("root") : true)
       , publicPost = this.post.get("public")

app/assets/javascripts/app/views/comment_view.js

@@ -6,35 +6,52 @@ app.views.Comment = app.views.Content.extend({
   className : "comment media",
   tooltipSelector: "time",
 
-  events : function() {
+  subviews: {
+    ".likes-on-comment": "likesInfoView"
+  },
+
+  events: function() {
     return _.extend({}, app.views.Content.prototype.events, {
       "click .comment_delete": "destroyModel",
-      "click .comment_report": "report"
+      "click .comment_report": "report",
+      "click .like": "toggleLike"
     });
   },
 
-  initialize : function(options){
+  initialize: function(options) {
     this.templateName = options.templateName || this.templateName;
+    this.model.interactions.on("change", this.render, this);
     this.model.on("change", this.render, this);
   },
 
-  presenter : function() {
+  presenter: function() {
     return _.extend(this.defaultPresenter(), {
       canRemove: this.canRemove(),
-      text: app.helpers.textFormatter(this.model.get("text"), this.model.get("mentioned_people"))
+      text: app.helpers.textFormatter(this.model.get("text"), this.model.get("mentioned_people")),
+      likesCount: this.model.attributes.likesCount,
+      userLike: this.model.interactions.userLike()
     });
   },
 
-  ownComment : function() {
+  ownComment: function() {
     return app.currentUser.authenticated() && this.model.get("author").diaspora_id === app.currentUser.get("diaspora_id");
   },
 
-  postOwner : function() {
+  postOwner: function() {
     return  app.currentUser.authenticated() && this.model.get("parent").author.diaspora_id === app.currentUser.get("diaspora_id");
   },
 
-  canRemove : function() {
+  canRemove: function() {
     return app.currentUser.authenticated() && (this.ownComment() || this.postOwner());
+  },
+
+  toggleLike: function(evt) {
+    if (evt) { evt.preventDefault(); }
+    this.model.interactions.toggleLike();
+  },
+
+  likesInfoView: function() {
+    return new app.views.LikesInfo({model: this.model});
   }
 });
 

app/assets/javascripts/app/views/stream_post_views.js

@@ -7,7 +7,7 @@ app.views.StreamPost = app.views.Post.extend({
   subviews : {
     ".feedback": "feedbackView",
     ".comments": "commentStreamView",
-    ".likes": "likesInfoView",
+    ".likes-on-post": "likesInfoView",
     ".reshares": "resharesInfoView",
     ".post-controls": "postControlsView",
     ".post-content": "postContentView",

app/assets/javascripts/mobile/mobile_comments.js

@@ -52,6 +52,8 @@
 
       $.post(form.attr("action") + "?format=mobile", form.serialize(), function(data){
         Diaspora.Mobile.Comments.updateStream(form, data);
+        // Register new comments
+        $(".stream").trigger("comments.loaded");
       }, "html").fail(function(response) {
         Diaspora.Mobile.Alert.handleAjaxError(response);
         Diaspora.Mobile.Comments.resetCommentBox(form);
@@ -107,10 +109,12 @@
         url: toggleReactionsLink.attr("href"),
         success: function (data) {
           toggleReactionsLink.addClass("active").removeClass("loading");
-          $(data).insertAfter(bottomBar.children(".show-comments").first());
+          $(data).insertAfter(bottomBar.children(".post-actions-container").first());
           self.showCommentBox(commentActionLink);
           bottomBarContainer.getCommentsContainer().find("time.timeago").timeago();
           bottomBarContainer.activate();
+          // Inform the comment action for new comments
+          $(".stream").trigger("comments.loaded");
         },
         error: function(){
           bottomBarContainer.deactivate();

app/assets/javascripts/mobile/mobile_post_actions.js

@@ -3,6 +3,11 @@
     initialize: function() {
       $(".like-action", ".stream").bind("tap click", this.onLike);
       $(".reshare-action", ".stream").bind("tap click", this.onReshare);
+      // Add handler to newly loaded comments
+      var self = this;
+      $(".stream").bind("comments.loaded", function() {
+        $(".like-action", ".stream").bind("tap click", self.onLike);
+      });
     },
 
     showLoader: function(link) {
@@ -75,8 +80,8 @@
 
     onLike: function(evt){
       evt.preventDefault();
-      var link = $(evt.target).closest(".like-action"),
-          likeCounter = $(evt.target).closest(".stream-element").find(".like-count");
+      var link = $(evt.target).closest(".like-action").first(),
+          likeCounter = $(evt.target).find(".like-count").first();
 
       if(!link.hasClass("loading") && link.hasClass("inactive")) {
         Diaspora.Mobile.PostActions.like(likeCounter, link);

app/assets/stylesheets/comments.scss

@@ -24,13 +24,9 @@
 
   .comments > .comment,
   .comment.new-comment-form-wrapper {
-    .avatar {
-      height: 35px;
-      width: 35px;
-    }
     margin: 0;
     border-top: 1px dotted $border-grey;
-    padding: 10px 0;
+    padding: 10px 0 0;
 
     .info {
       margin-top: 5px;
@@ -57,8 +53,6 @@
     }
   }
 
-  .comment.new-comment-form-wrapper { padding-bottom: 0; }
-
   .submit-button {
     margin-top: 10px;
     input {
@@ -84,6 +78,25 @@
   }
 }
 
+.likes-on-comment {
+  &.likes {
+    margin-top: 6px;
+  }
+
+  .media {
+    margin: 0 0 2px;
+
+    &:not(.display-avatars) .entypo-heart {
+      display: none;
+    }
+  }
+
+  .expand-likes {
+    display: inline-block;
+    margin-bottom: 4px;
+  }
+}
+
 .new-comment {
   &:not(.open) .submit-button,
   &:not(.open) .md-header {