Adds helper methods and appends new activities to the chat area

Signed-off-by: Akash Manohar J <akash@akash.im>

app/assets/javascripts/backbone/broadcasters/faye.js.coffee

@@ -15,4 +15,6 @@ class Kandan.Broadcasters.FayeBroadcaster
   subscribe: (channel)->
     console.log "Subscribing to #{channel}"
     @faye_client.subscribe channel, (data)=>
+      console.log data.user
+      Kandan.Helpers.Channels.add_activity(data)
       console.log data.user.first_name, "says", data.content

app/assets/javascripts/backbone/helpers/channels.js.coffee

@@ -1,7 +1,18 @@
 class Kandan.Helpers.Channels
 
+  @channel_el: (channel_id)->
+    $("#channels-#{channel_id}")
+
+  @selected_tab: ()->
+    $('#channels').tabs('option', 'selected')
+
   @get_active_channel_id: ()->
     $("#channels .ui-tabs-panel")
-      .eq($('#channels')
-        .tabs('option', 'selected'))
-      .data('channel_id')
+      .eq(@selected_tab())
+      .data('channel_id')
+
+  @add_activity: (activity_attributes)->
+    activity = new Kandan.Models.Activity(activity_attributes)
+    activity_view  = new Kandan.Views.ShowActivity({activity: activity})
+    @channel_el(activity.get('channel_id'))
+      .append(activity_view.render().el)

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

@@ -4,6 +4,7 @@
 #= require_tree ./collections
 #= require_tree ./views
 #= require_tree ./routers
+#= require_tree ./helpers
 
 window.Kandan =
   Models:       {}
@@ -29,7 +30,6 @@ window.Kandan =
       window.broadcaster = new Kandan.Broadcasters.FayeBroadcaster()
       for channel in channels.models
         window.broadcaster.subscribe "/channels/#{channel.get('id')}"
-
     })
 
 

app/assets/javascripts/backbone/models/activity.js.coffee

@@ -1,6 +1,6 @@
 class Kandan.Models.Activity extends Backbone.Model
   urlRoot: ()->
-    "channels/#{@channel_id}/activities"
+    "channels/#{@get('channel_id')}/activities"
 
   initialize: (options)->
     @channel_id = @get('channel_id')

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

@@ -4,7 +4,7 @@ class Kandan.Views.ListActivities extends Backbone.View
 
   render: ()->
     for activity in @options.channel.activities.models
-      activity_view = new Kandan.Views.Activity({activity: activity})
+      activity_view = new Kandan.Views.ShowActivity({activity: activity})
       $(@el).append(activity_view.render().el)
     $(@el).attr('id', "channels-#{@options.channel.get('id')}")
     $(@el).data('channel_id', @options.channel.get('id'))

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

@@ -1,4 +1,4 @@
-class Kandan.Views.Activity extends Backbone.View
+class Kandan.Views.ShowActivity extends Backbone.View
   template: JST['activity']
 
   tagName: 'p'