Merge branch 'notification-levels' into 'master'

Notification levels can now be set on the Project's main page

![Screen_Shot_2015-09-16_at_7.49.49_PM](https://gitlab.com/gitlab-org/gitlab-ce/uploads/0ac517bdfdc801f0e2115463c3ea9e10/Screen_Shot_2015-09-16_at_7.49.49_PM.png)

The notification settings for a project can now be set directly on the Project's page. The drop down list and the button label reflect the current level.

Saving is done via a remote form submission and if successful shows the user a flash message:

![Screen_Shot_2015-09-16_at_6.09.02_PM](https://gitlab.com/gitlab-org/gitlab-ce/uploads/8a6e1fde5177aa3976cadf59fdb8d375/Screen_Shot_2015-09-16_at_6.09.02_PM.png)

@DouweM can you please review my code. I gave my bestest effort to make in clean and readable.

@rspeicher hopefully we can include it with the 8.0 release, maybe?

/cc @darby 

See merge request !1322

8 files changed, 105 insertions, 3 deletions

diff --git a/app/assets/javascripts/project.js.coffee b/app/assets/javascripts/project.js.coffee
index 39a433dfc91..0ea8fffce07 100644
--- a/app/assets/javascripts/project.js.coffee
+++ b/app/assets/javascripts/project.js.coffee
@@ -24,3 +24,19 @@ class @Project
       $.cookie('hide_no_password_message', 'false', { path: path })
       $(@).parents('.no-password-message').remove()
       e.preventDefault()
+
+    $('.update-notification').on 'click', (e) ->
+      e.preventDefault()
+      notification_level = $(@).data 'notification-level'
+      $('#notification_level').val(notification_level)
+      $('#notification-form').submit()
+      label = null
+      switch notification_level
+        when 0 then label = ' Disabled '
+        when 1 then label = ' Participating '
+        when 2 then label = ' Watching '
+        when 3 then label = ' Global '
+        when 4 then label = ' On Mention '
+      $('#notifications-button').empty().append("<i class='fa fa-bell'></i>" + label + "<i class='fa fa-angle-down'></i>")
+      $(@).parents('ul').find('li.active').removeClass 'active'
+      $(@).parent().addClass 'active'
\ No newline at end of file
diff --git a/app/assets/stylesheets/pages/projects.scss b/app/assets/stylesheets/pages/projects.scss
index 53004fca350..a986fafff07 100644
--- a/app/assets/stylesheets/pages/projects.scss
+++ b/app/assets/stylesheets/pages/projects.scss
@@ -329,3 +329,7 @@ pre.light-well {
     margin-top: -1px;
   }
 }
+
+.inline-form {
+  display: inline-block;
+}
diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index f4d1a828aab..213c2a7173b 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -86,6 +86,10 @@ class ProjectsController < ApplicationController
           if @project.empty_repo?
             render 'projects/empty'
           else
+            if current_user
+              @membership = @project.project_member_by_id(current_user.id)
+            end
+
             render :show
           end
         else
diff --git a/app/helpers/notifications_helper.rb b/app/helpers/notifications_helper.rb
index 2f8e64c375f..cf11f8e5320 100644
--- a/app/helpers/notifications_helper.rb
+++ b/app/helpers/notifications_helper.rb
@@ -12,4 +12,49 @@ module NotificationsHelper
       icon('circle-o', class: 'ns-default')
     end
   end
+
+  def notification_list_item(notification_level, user_membership)
+    case notification_level
+    when Notification::N_DISABLED
+      content_tag(:li, class: active_level_for(user_membership, Notification::N_DISABLED)) do
+        link_to '#', class: 'update-notification', data: { notification_level: Notification::N_DISABLED } do
+          icon('microphone-slash fw', text: 'Disabled')
+        end
+      end
+    when Notification::N_PARTICIPATING
+      content_tag(:li, class: active_level_for(user_membership, Notification::N_PARTICIPATING)) do
+        link_to '#', class: 'update-notification', data: { notification_level: Notification::N_PARTICIPATING } do
+          icon('volume-up fw', text: 'Participate')
+        end
+      end
+    when Notification::N_WATCH
+      content_tag(:li, class: active_level_for(user_membership, Notification::N_WATCH)) do
+        link_to '#', class: 'update-notification', data: { notification_level: Notification::N_WATCH } do
+          icon('eye fw', text: 'Watch')
+        end
+      end
+    when Notification::N_MENTION
+      content_tag(:li, class: active_level_for(user_membership, Notification::N_MENTION)) do
+        link_to '#', class: 'update-notification', data: { notification_level: Notification::N_MENTION }  do
+          icon('at fw', text: 'On mention')
+        end
+      end
+    when Notification::N_GLOBAL
+      content_tag(:li, class: active_level_for(user_membership, Notification::N_GLOBAL)) do
+        link_to '#', class: 'update-notification', data: { notification_level: Notification::N_GLOBAL } do
+          icon('globe fw', text: 'Global')
+        end
+      end
+    else
+      # do nothing
+    end
+  end
+
+  def notification_label(user_membership)
+    Notification.new(user_membership).to_s
+  end
+
+  def active_level_for(user_membership, level)
+    'active' if user_membership.notification_level == level
+  end
 end
diff --git a/app/models/notification.rb b/app/models/notification.rb
index 1395274173d..171b8df45c2 100644
--- a/app/models/notification.rb
+++ b/app/models/notification.rb
@@ -12,7 +12,7 @@ class Notification
 
   class << self
     def notification_levels
-      [N_DISABLED, N_PARTICIPATING, N_WATCH, N_MENTION]
+      [N_DISABLED, N_MENTION, N_PARTICIPATING, N_WATCH]
     end
 
     def options_with_labels
@@ -26,7 +26,7 @@ class Notification
     end
 
     def project_notification_levels
-      [N_DISABLED, N_PARTICIPATING, N_WATCH, N_GLOBAL, N_MENTION]
+      [N_DISABLED, N_MENTION, N_PARTICIPATING, N_WATCH, N_GLOBAL]
     end
   end
 
@@ -57,4 +57,21 @@ class Notification
   def level
     target.notification_level
   end
+  
+  def to_s
+    case level
+    when N_DISABLED
+      'Disabled'
+    when N_PARTICIPATING
+      'Participating'
+    when N_WATCH
+      'Watching'
+    when N_MENTION
+      'On mention'
+    when N_GLOBAL
+      'Global'
+    else
+      # do nothing      
+    end
+  end
 end
diff --git a/app/views/profiles/notifications/show.html.haml b/app/views/profiles/notifications/show.html.haml
index ea4e5f3e182..8eebd96b674 100644
--- a/app/views/profiles/notifications/show.html.haml
+++ b/app/views/profiles/notifications/show.html.haml
@@ -33,7 +33,7 @@
         = f.label :notification_level, value: Notification::N_MENTION do
           = f.radio_button :notification_level, Notification::N_MENTION
           .level-title
-            Mention
+            On Mention
           %p You will receive notifications only for comments in which you were @mentioned
 
       .radio
diff --git a/app/views/projects/_home_panel.html.haml b/app/views/projects/_home_panel.html.haml
index b347846c932..c1d5428f676 100644
--- a/app/views/projects/_home_panel.html.haml
+++ b/app/views/projects/_home_panel.html.haml
@@ -26,6 +26,8 @@
           = icon('download fw')
           Download
 
+    = render 'projects/buttons/notifications'
+
     = render 'projects/buttons/dropdown'
 
     - if @project.gitlab_ci?
diff --git a/app/views/projects/buttons/_notifications.html.haml b/app/views/projects/buttons/_notifications.html.haml
new file mode 100644
index 00000000000..57f764178d5
--- /dev/null
+++ b/app/views/projects/buttons/_notifications.html.haml
@@ -0,0 +1,14 @@
+- return unless @membership
+
+= form_tag profile_notifications_path, method: :put, remote: true, class: 'inline-form', id: 'notification-form' do
+  = hidden_field_tag :notification_type, 'project'
+  = hidden_field_tag :notification_id, @membership.id
+  = hidden_field_tag :notification_level
+  %span.dropdown
+    %a.dropdown-toggle.btn.btn-new#notifications-button{href: '#', "data-toggle" => "dropdown"}
+      = icon('bell')
+      = notification_label(@membership)
+      = icon('angle-down')
+    %ul.dropdown-menu.dropdown-menu-right.project-home-dropdown
+      - Notification.project_notification_levels.each do |level|
+        = notification_list_item(level, @membership)