Merge pull request #91 from gabceb/master

Added mentions

Author: Tony Guntharp

app/assets/javascripts/application.js

@@ -19,4 +19,5 @@
 //= require lib/backbone
 //= require backbone/kandan
 //= require_tree .
-
+//= require lib/jquery.atwho
+//= require lib/jquery.caret

app/assets/javascripts/backbone/kandan.js.coffee.erb

@@ -28,6 +28,7 @@ window.Kandan =
   registerPlugins: ->
     plugins = [
       "UserList"
+      ,"Mentions"
       ,"Notifications"
       ,"MusicPlayer"
       ,"YouTubeEmbed"
@@ -119,7 +120,8 @@ window.Kandan =
       Kandan.initTabs()
       Kandan.Widgets.initAll()
       Kandan.Helpers.Channels.scrollToLatestMessage()
-       
+      Kandan.Plugins.Mentions.initUsersMentions(Kandan.Helpers.ActiveUsers.all())
+      return
 
   setCurrentUser: ()->
     template = JST['current_user']

app/assets/javascripts/backbone/plugins/mentions.coffee

@@ -0,0 +1,25 @@
+# The mentions plugin takes care of highlighting the @useranme and passing the users to the atwho plugin.
+# The show_activities addMessage method is the responsible of changing the look of a message body when a user is mentioned
+class Kandan.Plugins.Mentions
+  @options:
+    regex: /@\S*/g
+
+    template: _.template '''<span class="mention"><%= mention %></span>'''
+
+  @init: ()->
+  	Kandan.Data.ActiveUsers.registerCallback "change", (data)=>
+      @initUsersMentions(data.extra.active_users)
+
+    Kandan.Modifiers.register @options.regex, (message, state) =>
+      for mention in message.content.match(@options.regex)
+      	replacement = @options.template({mention: mention})
+      	message.content = message.content.replace(mention, replacement)
+
+      return Kandan.Helpers.Activities.buildFromMessageTemplate(message)	
+      
+  @initUsersMentions: (activeUsers)->
+    users = _.map activeUsers, (user)->
+      user.username
+
+    $(".chat-input").atwho("@", {data: users});
+    return

app/assets/javascripts/backbone/views/show_activity.js.coffee

@@ -16,9 +16,16 @@ class Kandan.Views.ShowActivity extends Backbone.View
         @compiledTemplate = Kandan.Helpers.Activities.buildFromMessageTemplate activity
 
     $(@el).data("activity-id", activity.id)
-    if activity.action == "message" && activity.user.id == Kandan.Helpers.Users.currentUser().id
-      $(@el).addClass("current_user")
+    if activity.action == "message"
 
+      user_mention_regex = new RegExp("@#{Kandan.Helpers.Users.currentUser().username}\\b")
+      all_mention_regex = new RegExp("@all")
+      
+      if activity.user.id == Kandan.Helpers.Users.currentUser().id
+        $(@el).addClass("current_user")
+      
+      if user_mention_regex.test(@compiledTemplate) || all_mention_regex.test(@compiledTemplate)
+        $(@el).addClass("mentioned_user")
 
     if activity.id == undefined
       $(@el).attr("id", "activity-c#{activity.cid}")