Merge pull request #520 from edx/feature/kevin/email_notifications_panel

Feature/kevin/email notifications panel

common/static/coffee/src/discussion/discussion_router.coffee

@@ -20,10 +20,13 @@ if Backbone?
 
     allThreads: ->
       @nav.updateSidebar()
+      @nav.goHome()
 
     setActiveThread: =>
       if @thread
         @nav.setActiveThread(@thread.get("id"))
+      else
+        @nav.goHome
 
     showThread: (forum_name, thread_id) ->
       @thread = @discussion.get(thread_id)

common/static/coffee/src/discussion/utils.coffee

@@ -82,6 +82,9 @@ class @DiscussionUtil
       user_profile            : "/courses/#{$$course_id}/discussion/forum/users/#{param}"
       followed_threads        : "/courses/#{$$course_id}/discussion/forum/users/#{param}/followed"
       threads                 : "/courses/#{$$course_id}/discussion/forum"
+      "enable_notifications"  : "/notification_prefs/enable/"
+      "disable_notifications" : "/notification_prefs/disable/"
+      "notifications_status" : "/notification_prefs/status"
     }[name]
 
   @safeAjax: (params) ->

common/static/coffee/src/discussion/views/discussion_thread_list_view.coffee

@@ -2,6 +2,7 @@ if Backbone?
   class @DiscussionThreadListView extends Backbone.View
     events:
       "click .search": "showSearch"
+      "click .home": "goHome"
       "click .browse": "toggleTopicDrop"
       "keydown .post-search-field": "performSearch"
       "click .sort-bar a": "sortThreads"
@@ -43,6 +44,7 @@ if Backbone?
       if active
         @setActiveThread(thread_id)
 
+
     #TODO fix this entire chain of events
     addAndSelectThread: (thread) =>
       commentable_id = thread.get("commentable_id")
@@ -191,6 +193,25 @@ if Backbone?
       @$(".browse").removeClass('is-open')
       setTimeout (-> @$(".post-search-field").focus()), 200
 
+    goHome: ->
+      @template = _.template($("#discussion-home").html())
+      $(".discussion-column").html(@template)
+      $(".post-list a").removeClass("active")
+      $("input.email-setting").bind "click", @updateEmailNotifications
+      url = DiscussionUtil.urlFor("notifications_status",window.user.get("id"))
+      DiscussionUtil.safeAjax
+          url: url
+          type: "GET"
+          success: (response, textStatus) =>
+            if response.status
+              $('input.email-setting').attr('checked','checked')
+            else
+              $('input.email-setting').removeAttr('checked')
+      thread_id = null
+      @trigger("thread:removed")  
+      #select all threads
+
+
     toggleTopicDrop: (event) =>
       event.preventDefault()
       event.stopPropagation()
@@ -312,6 +333,7 @@ if Backbone?
           if callback?
             callback()
 
+    
     retrieveDiscussions: (discussion_ids) ->
       @discussionIds = discussion_ids.join(',')
       @mode = 'commentables'
@@ -418,3 +440,19 @@ if Backbone?
     retrieveFollowed: (event)=>
       @mode = 'followed'
       @retrieveFirstPage(event)
+
+    updateEmailNotifications: () =>
+      if $('input.email-setting').attr('checked')
+        DiscussionUtil.safeAjax
+          url: DiscussionUtil.urlFor("enable_notifications")
+          type: "POST"
+          error: () =>
+            $('input.email-setting').removeAttr('checked')
+      else
+        DiscussionUtil.safeAjax
+          url: DiscussionUtil.urlFor("disable_notifications")
+          type: "POST"
+          error: () =>
+            $('input.email-setting').attr('checked','checked')
+
+