Merge branch 'issue_12758' into 'master'

Implement custom notification level options

![Screen_Shot_2016-06-17_at_15.31.43](/uploads/3fc47d2f461b3e8b67bb8acaa304cf99/Screen_Shot_2016-06-17_at_15.31.43.png)

![Screenshot_from_2016-06-15_10-52-27](/uploads/88dbdd21d97e80ee772fe08fa0c9b393/Screenshot_from_2016-06-15_10-52-27.png)

part of #12758 

See merge request !4389

34 files changed, 643 insertions, 249 deletions

diff --git a/CHANGELOG b/CHANGELOG
index de9d71dae97..362b5bd580a 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -74,6 +74,7 @@ v 8.9.0 (unreleased)
   - Pipelines can be canceled only when there are running builds
   - Allow authentication using personal access tokens
   - Use downcased path to container repository as this is expected path by Docker
+  - Custom notification settings
   - Projects pending deletion will render a 404 page
   - Measure queue duration between gitlab-workhorse and Rails
   - Added Gfm autocomplete for labels
diff --git a/app/assets/javascripts/dispatcher.js.coffee b/app/assets/javascripts/dispatcher.js.coffee
index b560500cce6..7fbff9214cf 100644
--- a/app/assets/javascripts/dispatcher.js.coffee
+++ b/app/assets/javascripts/dispatcher.js.coffee
@@ -78,6 +78,7 @@ class Dispatcher
       when 'projects:show'
         shortcut_handler = new ShortcutsNavigation()
 
+        new NotificationsForm()
         new TreeView() if $('#tree-slider').length
       when 'groups:activity'
         new Activities()
@@ -129,6 +130,8 @@ class Dispatcher
         shortcut_handler = new ShortcutsDashboardNavigation()
       when 'profiles'
         new Profile()
+        new NotificationsForm()
+        new NotificationsDropdown()
       when 'projects'
         new Project()
         new ProjectAvatar()
@@ -136,8 +139,12 @@ class Dispatcher
           when 'edit'
             shortcut_handler = new ShortcutsNavigation()
             new ProjectNew()
-          when 'new', 'show'
+          when 'new'
             new ProjectNew()
+          when 'show'
+            new ProjectNew()
+            new ProjectShow()
+            new NotificationsDropdown()
           when 'wikis'
             new Wikis()
             shortcut_handler = new ShortcutsNavigation()
diff --git a/app/assets/javascripts/notifications_dropdown.js.coffee b/app/assets/javascripts/notifications_dropdown.js.coffee
new file mode 100644
index 00000000000..74d2298c1fa
--- /dev/null
+++ b/app/assets/javascripts/notifications_dropdown.js.coffee
@@ -0,0 +1,24 @@
+class @NotificationsDropdown
+  $ ->
+    $(document)
+      .off 'click', '.update-notification'
+      .on 'click', '.update-notification', (e) ->
+        e.preventDefault()
+
+        return if $(this).is('.is-active') and $(this).data('notification-level') is 'custom'
+
+        notificationLevel = $(@).data 'notification-level'
+        label = $(@).data 'notification-title'
+        form = $(this).parents('.notification-form:first')
+        form.find('.js-notification-loading').toggleClass 'fa-bell fa-spin fa-spinner'
+        form.find('#notification_setting_level').val(notificationLevel)
+        form.submit()
+
+    $(document)
+      .off 'ajax:success', '.notification-form'
+      .on 'ajax:success', '.notification-form', (e, data) ->
+        if data.saved
+          new Flash('Notification settings saved', 'notice')
+          $(e.currentTarget).closest('.notification-dropdown').replaceWith(data.html)
+        else
+          new Flash('Failed to save new settings', 'alert')
diff --git a/app/assets/javascripts/notifications_form.js.coffee b/app/assets/javascripts/notifications_form.js.coffee
new file mode 100644
index 00000000000..3432428702a
--- /dev/null
+++ b/app/assets/javascripts/notifications_form.js.coffee
@@ -0,0 +1,49 @@
+class @NotificationsForm
+  constructor: ->
+    @removeEventListeners()
+    @initEventListeners()
+
+  removeEventListeners: ->
+    $(document).off 'change', '.js-custom-notification-event'
+
+  initEventListeners: ->
+    $(document).on 'change', '.js-custom-notification-event', @toggleCheckbox
+
+  toggleCheckbox: (e) =>
+    $checkbox = $(e.currentTarget)
+    $parent = $checkbox.closest('.checkbox')
+    @saveEvent($checkbox, $parent)
+
+  showCheckboxLoadingSpinner: ($parent) ->
+    $parent
+      .addClass 'is-loading'
+      .find '.custom-notification-event-loading'
+      .removeClass 'fa-check'
+      .addClass 'fa-spin fa-spinner'
+      .removeClass 'is-done'
+
+  saveEvent: ($checkbox, $parent) ->
+    form = $parent.parents('form:first')
+
+    $.ajax(
+      url: form.attr('action')
+      method: form.attr('method')
+      dataType: 'json'
+      data: form.serialize()
+
+      beforeSend: =>
+        @showCheckboxLoadingSpinner($parent)
+    ).done (data) ->
+      $checkbox.enable()
+
+      if data.saved
+        $parent
+          .find '.custom-notification-event-loading'
+          .toggleClass 'fa-spin fa-spinner fa-check is-done'
+
+        setTimeout(->
+          $parent
+            .removeClass 'is-loading'
+            .find '.custom-notification-event-loading'
+            .toggleClass 'fa-spin fa-spinner fa-check is-done'
+        , 2000)
diff --git a/app/assets/javascripts/profile.js.coffee b/app/assets/javascripts/profile.js.coffee
index 26a12423521..1583d1ba6f9 100644
--- a/app/assets/javascripts/profile.js.coffee
+++ b/app/assets/javascripts/profile.js.coffee
@@ -8,6 +8,10 @@ class @Profile
     $('.js-preferences-form').on 'change.preference', 'input[type=radio]', ->
       $(this).parents('form').submit()
 
+    # Automatically submit email form when it changes
+    $('#user_notification_email').on 'change', ->
+      $(this).parents('form').submit()
+
     $('.update-username').on 'ajax:before', ->
       $('.loading-username').show()
       $(this).find('.update-success').hide()
diff --git a/app/assets/javascripts/project.js.coffee b/app/assets/javascripts/project.js.coffee
index 07be85a32a5..d12bad97a05 100644
--- a/app/assets/javascripts/project.js.coffee
+++ b/app/assets/javascripts/project.js.coffee
@@ -34,22 +34,6 @@ class @Project
       $(@).parents('.no-password-message').remove()
       e.preventDefault()
 
-    $('.update-notification').on 'click', (e) ->
-      e.preventDefault()
-      notification_level = $(@).data 'notification-level'
-      label = $(@).data 'notification-title'
-      $('#notification_setting_level').val(notification_level)
-      $('#notification-form').submit()
-      $('#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'
-
-    $('#notification-form').on 'ajax:success', (e, data) ->
-      if data.saved
-        new Flash("Notification settings saved", "notice")
-      else
-        new Flash("Failed to save new settings", "alert")
-
 
     @projectSelectDropdown()
 
diff --git a/app/assets/stylesheets/pages/projects.scss b/app/assets/stylesheets/pages/projects.scss
index 855d86cb238..ed8e9d6915b 100644
--- a/app/assets/stylesheets/pages/projects.scss
+++ b/app/assets/stylesheets/pages/projects.scss
@@ -128,11 +128,6 @@
       }
     }
 
-    .btn-group:not(:first-child):not(:last-child) > .btn {
-      border-top-right-radius: 3px;
-      border-bottom-right-radius: 3px;
-    }
-
     form {
       margin-left: 10px;
     }
@@ -603,3 +598,20 @@ pre.light-well {
     }
   }
 }
+
+.custom-notifications-form {
+  .is-loading {
+    .custom-notification-event-loading {
+      display: inline-block;
+    }
+  }
+}
+
+.custom-notification-event-loading {
+  display: none;
+  margin-left: 5px;
+
+  &.is-done {
+    color: $gl-text-green;
+  }
+}
diff --git a/app/controllers/groups/notification_settings_controller.rb b/app/controllers/groups/notification_settings_controller.rb
deleted file mode 100644
index de13b16ccf2..00000000000
--- a/app/controllers/groups/notification_settings_controller.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class Groups::NotificationSettingsController < Groups::ApplicationController
-  before_action :authenticate_user!
-
-  def update
-    notification_setting = current_user.notification_settings_for(group)
-    saved = notification_setting.update_attributes(notification_setting_params)
-
-    render json: { saved: saved }
-  end
-
-  private
-
-  def notification_setting_params
-    params.require(:notification_setting).permit(:level)
-  end
-end
diff --git a/app/controllers/notification_settings_controller.rb b/app/controllers/notification_settings_controller.rb
new file mode 100644
index 00000000000..eddd03cc229
--- /dev/null
+++ b/app/controllers/notification_settings_controller.rb
@@ -0,0 +1,36 @@
+class NotificationSettingsController < ApplicationController
+  before_action :authenticate_user!
+
+  def create
+    project = Project.find(params[:project][:id])
+
+    return render_404 unless can?(current_user, :read_project, project)
+
+    @notification_setting = current_user.notification_settings_for(project)
+    @saved = @notification_setting.update_attributes(notification_setting_params)
+
+    render_response
+  end
+
+  def update
+    @notification_setting = current_user.notification_settings.find(params[:id])
+    @saved = @notification_setting.update_attributes(notification_setting_params)
+
+    render_response
+  end
+
+  private
+
+  def render_response
+    render json: {
+      html: view_to_html_string("shared/notifications/_button", notification_setting: @notification_setting),
+      saved: @saved
+    }
+  end
+
+  def notification_setting_params
+    allowed_fields = NotificationSetting::EMAIL_EVENTS.dup
+    allowed_fields << :level
+    params.require(:notification_setting).permit(allowed_fields)
+  end
+end
diff --git a/app/controllers/profiles/notifications_controller.rb b/app/controllers/profiles/notifications_controller.rb
index 40d1906a53f..b8b71d295f6 100644
--- a/app/controllers/profiles/notifications_controller.rb
+++ b/app/controllers/profiles/notifications_controller.rb
@@ -1,13 +1,13 @@
 class Profiles::NotificationsController < Profiles::ApplicationController
   def show
     @user                        = current_user
-    @group_notifications         = current_user.notification_settings.for_groups
-    @project_notifications       = current_user.notification_settings.for_projects
+    @group_notifications         = current_user.notification_settings.for_groups.order(:id)
+    @project_notifications       = current_user.notification_settings.for_projects.order(:id)
     @global_notification_setting = current_user.global_notification_setting
   end
 
   def update
-    if current_user.update_attributes(user_params) && update_notification_settings
+    if current_user.update_attributes(user_params)
       flash[:notice] = "Notification settings saved"
     else
       flash[:alert] = "Failed to save new settings"
@@ -19,16 +19,4 @@ class Profiles::NotificationsController < Profiles::ApplicationController
   def user_params
     params.require(:user).permit(:notification_email)
   end
-
-  def global_notification_setting_params
-    params.require(:global_notification_setting).permit(:level)
-  end
-
-  private
-
-  def update_notification_settings
-    return true unless global_notification_setting_params
-
-    current_user.global_notification_setting.update_attributes(global_notification_setting_params)
-  end
 end
diff --git a/app/controllers/projects/notification_settings_controller.rb b/app/controllers/projects/notification_settings_controller.rb
deleted file mode 100644
index 7d81cc03c73..00000000000
--- a/app/controllers/projects/notification_settings_controller.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class Projects::NotificationSettingsController < Projects::ApplicationController
-  before_action :authenticate_user!
-
-  def update
-    notification_setting = current_user.notification_settings_for(project)
-    saved = notification_setting.update_attributes(notification_setting_params)
-
-    render json: { saved: saved }
-  end
-
-  private
-
-  def notification_setting_params
-    params.require(:notification_setting).permit(:level)
-  end
-end
diff --git a/app/helpers/notifications_helper.rb b/app/helpers/notifications_helper.rb
index 50c21fc0d49..77783cd7640 100644
--- a/app/helpers/notifications_helper.rb
+++ b/app/helpers/notifications_helper.rb
@@ -34,7 +34,7 @@ module NotificationsHelper
   def notification_description(level)
     case level.to_sym
     when :participating
-      'You will only receive notifications from related resources'
+      'You will only receive notifications for threads you have participated in'
     when :mention
       'You will receive notifications only for comments in which you were @mentioned'
     when :watch
@@ -43,6 +43,8 @@ module NotificationsHelper
       'You will not get any notifications via email'
     when :global
       'Use your global notification setting'
+    when :custom
+      'You will only receive notifications for the events you choose'
     end
   end
 
@@ -62,22 +64,14 @@ module NotificationsHelper
     end
   end
 
-  def notification_level_radio_buttons
-    html = ""
-
-    NotificationSetting.levels.each_key do |level|
-      level = level.to_sym
-      next if level == :global
-
-      html << content_tag(:div, class: "radio") do
-        content_tag(:label, { value: level }) do
-          radio_button_tag(:"global_notification_setting[level]", level, @global_notification_setting.level.to_sym == level) +
-          content_tag(:div, level.to_s.capitalize, class: "level-title") +
-          content_tag(:p, notification_description(level))
-        end
-      end
-    end
+  # Identifier to trigger individually dropdowns and custom settings modals in the same view
+  def notifications_menu_identifier(type, notification_setting)
+    "#{type}-#{notification_setting.user_id}-#{notification_setting.source_id}-#{notification_setting.source_type}"
+  end
 
-    html.html_safe
+  # Create hidden field to send notification setting source to controller
+  def hidden_setting_source_input(notification_setting)
+    return unless notification_setting.source_type
+    hidden_field_tag "#{notification_setting.source_type.downcase}[id]", notification_setting.source_id
   end
 end
diff --git a/app/models/notification_setting.rb b/app/models/notification_setting.rb
index 0ce87968e46..d41fc7073c6 100644
--- a/app/models/notification_setting.rb
+++ b/app/models/notification_setting.rb
@@ -1,5 +1,5 @@
 class NotificationSetting < ActiveRecord::Base
-  enum level: { global: 3, watch: 2, mention: 4, participating: 1, disabled: 0 }
+  enum level: { global: 3, watch: 2, mention: 4, participating: 1, disabled: 0, custom: 5 }
 
   default_value_for :level, NotificationSetting.levels[:global]
 
@@ -15,6 +15,24 @@ class NotificationSetting < ActiveRecord::Base
   scope :for_groups, -> { where(source_type: 'Namespace') }
   scope :for_projects, -> { where(source_type: 'Project') }
 
+  EMAIL_EVENTS = [
+    :new_note,
+    :new_issue,
+    :reopen_issue,
+    :close_issue,
+    :reassign_issue,
+    :new_merge_request,
+    :reopen_merge_request,
+    :close_merge_request,
+    :reassign_merge_request,
+    :merge_merge_request
+  ]
+
+  store :events, accessors: EMAIL_EVENTS, coder: JSON
+
+  before_create :set_events
+  before_save :events_to_boolean
+
   def self.find_or_create_for(source)
     setting = find_or_initialize_by(source: source)
 
@@ -24,4 +42,21 @@ class NotificationSetting < ActiveRecord::Base
 
     setting
   end
+
+  # Set all event attributes to false when level is not custom or being initialized for UX reasons
+  def set_events
+    return if custom?
+
+    EMAIL_EVENTS.each do |event|
+      events[event] = false
+    end
+  end
+
+  # Validates store accessors values as boolean
+  # It is a text field so it does not cast correct boolean values in JSON
+  def events_to_boolean
+    EMAIL_EVENTS.each do |event|
+      events[event] = ActiveRecord::ConnectionAdapters::Column::TRUE_VALUES.include?(events[event])
+    end
+  end
 end
diff --git a/app/services/notification_service.rb b/app/services/notification_service.rb
index c125b8aff29..19832a19b2b 100644
--- a/app/services/notification_service.rb
+++ b/app/services/notification_service.rb
@@ -29,9 +29,10 @@ class NotificationService
   #  * issue assignee if their notification level is not Disabled
   #  * project team members with notification level higher then Participating
   #  * watchers of the issue's labels
+  #  * users with custom level checked with "new issue"
   #
   def new_issue(issue, current_user)
-    new_resource_email(issue, issue.project, 'new_issue_email')
+    new_resource_email(issue, issue.project, :new_issue_email)
   end
 
   # When we close an issue we should send an email to:
@@ -39,18 +40,20 @@ class NotificationService
   #  * issue author if their notification level is not Disabled
   #  * issue assignee if their notification level is not Disabled
   #  * project team members with notification level higher then Participating
+  #  * users with custom level checked with "close issue"
   #
   def close_issue(issue, current_user)
-    close_resource_email(issue, issue.project, current_user, 'closed_issue_email')
+    close_resource_email(issue, issue.project, current_user, :closed_issue_email)
   end
 
   # When we reassign an issue we should send an email to:
   #
   #  * issue old assignee if their notification level is not Disabled
   #  * issue new assignee if their notification level is not Disabled
+  #  * users with custom level checked with "reassign issue"
   #
   def reassigned_issue(issue, current_user)
-    reassign_resource_email(issue, issue.project, current_user, 'reassigned_issue_email')
+    reassign_resource_email(issue, issue.project, current_user, :reassigned_issue_email)
   end
 
   # When we add labels to an issue we should send an email to:
@@ -58,7 +61,7 @@ class NotificationService
   #  * watchers of the issue's labels
   #
   def relabeled_issue(issue, added_labels, current_user)
-    relabeled_resource_email(issue, added_labels, current_user, 'relabeled_issue_email')
+    relabeled_resource_email(issue, added_labels, current_user, :relabeled_issue_email)
   end
 
   # When create a merge request we should send an email to:
@@ -66,18 +69,20 @@ class NotificationService
   #  * mr assignee if their notification level is not Disabled
   #  * project team members with notification level higher then Participating
   #  * watchers of the mr's labels
+  #  * users with custom level checked with "new merge request"
   #
   def new_merge_request(merge_request, current_user)
-    new_resource_email(merge_request, merge_request.target_project, 'new_merge_request_email')
+    new_resource_email(merge_request, merge_request.target_project, :new_merge_request_email)
   end
 
   # When we reassign a merge_request we should send an email to:
   #
   #  * merge_request old assignee if their notification level is not Disabled
   #  * merge_request assignee if their notification level is not Disabled
+  #  * users with custom level checked with "reassign merge request"
   #
   def reassigned_merge_request(merge_request, current_user)
-    reassign_resource_email(merge_request, merge_request.target_project, current_user, 'reassigned_merge_request_email')
+    reassign_resource_email(merge_request, merge_request.target_project, current_user, :reassigned_merge_request_email)
   end
 
   # When we add labels to a merge request we should send an email to:
@@ -85,15 +90,15 @@ class NotificationService
   #  * watchers of the mr's labels
   #
   def relabeled_merge_request(merge_request, added_labels, current_user)
-    relabeled_resource_email(merge_request, added_labels, current_user, 'relabeled_merge_request_email')
+    relabeled_resource_email(merge_request, added_labels, current_user, :relabeled_merge_request_email)
   end
 
   def close_mr(merge_request, current_user)
-    close_resource_email(merge_request, merge_request.target_project, current_user, 'closed_merge_request_email')
+    close_resource_email(merge_request, merge_request.target_project, current_user, :closed_merge_request_email)
   end
 
   def reopen_issue(issue, current_user)
-    reopen_resource_email(issue, issue.project, current_user, 'issue_status_changed_email', 'reopened')
+    reopen_resource_email(issue, issue.project, current_user, :issue_status_changed_email, 'reopened')
   end
 
   def merge_mr(merge_request, current_user)
@@ -101,7 +106,7 @@ class NotificationService
       merge_request,
       merge_request.target_project,
       current_user,
-      'merged_merge_request_email'
+      :merged_merge_request_email
     )
   end
 
@@ -110,7 +115,7 @@ class NotificationService
       merge_request,
       merge_request.target_project,
       current_user,
-      'merge_request_status_email',
+      :merge_request_status_email,
       'reopened'
     )
   end
@@ -153,6 +158,9 @@ class NotificationService
     # Merge project watchers
     recipients = add_project_watchers(recipients, note.project)
 
+    # Merge project with custom notification
+    recipients = add_custom_notifications(recipients, note.project, :new_note)
+
     # Reject users with Mention notification level, except those mentioned in _this_ note.
     recipients = reject_mention_users(recipients - mentioned_users, note.project)
     recipients = recipients + mentioned_users
@@ -276,12 +284,31 @@ class NotificationService
 
   protected
 
+  # Get project/group users with CUSTOM notification level
+  def add_custom_notifications(recipients, project, action)
+    user_ids = []
+
+    # Users with a notification setting on group or project
+    user_ids += notification_settings_for(project, :custom, action)
+    user_ids += notification_settings_for(project.group, :custom, action)
+
+    # Users with global level custom
+    users_with_project_level_global = notification_settings_for(project, :global)
+    users_with_group_level_global   = notification_settings_for(project.group, :global)
+
+    global_users_ids = users_with_project_level_global.concat(users_with_group_level_global)
+    user_ids += users_with_global_level_custom(global_users_ids, action)
+
+    recipients.concat(User.find(user_ids))
+  end
+
   # Get project users with WATCH notification level
   def project_watchers(project)
-    project_members = project_member_notification(project)
+    project_members = notification_settings_for(project)
+
+    users_with_project_level_global = notification_settings_for(project, :global)
+    users_with_group_level_global   = notification_settings_for(project.group, :global)
 
-    users_with_project_level_global = project_member_notification(project, :global)
-    users_with_group_level_global = group_member_notification(project, :global)
     users = users_with_global_level_watch([users_with_project_level_global, users_with_group_level_global].flatten.uniq)
 
     users_with_project_setting = select_project_member_setting(project, users_with_project_level_global, users)
@@ -290,33 +317,39 @@ class NotificationService
     User.where(id: users_with_project_setting.concat(users_with_group_setting).uniq).to_a
   end
 
-  def project_member_notification(project, notification_level=nil)
+  def notification_settings_for(resource, notification_level = nil, action = nil)
+    return [] unless resource
+
     if notification_level
-      project.notification_settings.where(level: NotificationSetting.levels[notification_level]).pluck(:user_id)
+      settings = resource.notification_settings.where(level: NotificationSetting.levels[notification_level])
+      settings = settings.select { |setting| setting.events[action] } if action.present?
+      settings.map(&:user_id)
     else
-      project.notification_settings.pluck(:user_id)
+      resource.notification_settings.pluck(:user_id)
     end
   end
 
-  def group_member_notification(project, notification_level)
-    if project.group
-      project.group.notification_settings.where(level: NotificationSetting.levels[notification_level]).pluck(:user_id)
-    else
-      []
-    end
+  def users_with_global_level_watch(ids)
+    settings_with_global_level_of(:watch, ids).pluck(:user_id)
   end
 
-  def users_with_global_level_watch(ids)
+  def users_with_global_level_custom(ids, action)
+    settings = settings_with_global_level_of(:custom, ids)
+    settings = settings.select { |setting| setting.events[action] }
+    settings.map(&:user_id)
+  end
+
+  def settings_with_global_level_of(level, ids)
     NotificationSetting.where(
       user_id: ids,
       source_type: nil,
-      level: NotificationSetting.levels[:watch]
-    ).pluck(:user_id)
+      level: NotificationSetting.levels[level]
+    )
   end
 
   # Build a list of users based on project notifcation settings
   def select_project_member_setting(project, global_setting, users_global_level_watch)
-    users = project_member_notification(project, :watch)
+    users = notification_settings_for(project, :watch)
 
     # If project setting is global, add to watch list if global setting is watch
     global_setting.each do |user_id|
@@ -330,7 +363,7 @@ class NotificationService
 
   # Build a list of users based on group notification settings
   def select_group_member_setting(project, project_members, global_setting, users_global_level_watch)
-    uids = group_member_notification(project, :watch)
+    uids = notification_settings_for(project, :watch)
 
     # Group setting is watch, add to users list if user is not project member
     users = []
@@ -351,7 +384,7 @@ class NotificationService
   end
 
   def add_project_watchers(recipients, project)
-    recipients.concat(project_watchers(project)).compact.uniq
+    recipients.concat(project_watchers(project)).compact
   end
 
   # Remove users with disabled notifications from array
@@ -436,7 +469,7 @@ class NotificationService
   end
 
   def new_resource_email(target, project, method)
-    recipients = build_recipients(target, project, target.author, action: :new)
+    recipients = build_recipients(target, project, target.author, action: "new")
 
     recipients.each do |recipient|
       mailer.send(method, recipient.id, target.id).deliver_later
@@ -444,7 +477,8 @@ class NotificationService
   end
 
   def close_resource_email(target, project, current_user, method)
-    recipients = build_recipients(target, project, current_user)
+    action = method == :merged_merge_request_email ? "merge" : "close"
+    recipients = build_recipients(target, project, current_user, action: action)
 
     recipients.each do |recipient|
       mailer.send(method, recipient.id, target.id, current_user.id).deliver_later
@@ -455,7 +489,7 @@ class NotificationService
     previous_assignee_id = previous_record(target, 'assignee_id')
     previous_assignee = User.find_by(id: previous_assignee_id) if previous_assignee_id
 
-    recipients = build_recipients(target, project, current_user, action: :reassign, previous_assignee: previous_assignee)
+    recipients = build_recipients(target, project, current_user, action: "reassign", previous_assignee: previous_assignee)
 
     recipients.each do |recipient|
       mailer.send(
@@ -478,7 +512,7 @@ class NotificationService
   end
 
   def reopen_resource_email(target, project, current_user, method, status)
-    recipients = build_recipients(target, project, current_user)
+    recipients = build_recipients(target, project, current_user, action: "reopen")
 
     recipients.each do |recipient|
       mailer.send(method, recipient.id, target.id, status, current_user.id).deliver_later
@@ -486,14 +520,20 @@ class NotificationService
   end
 
   def build_recipients(target, project, current_user, action: nil, previous_assignee: nil)
+    custom_action = build_custom_key(action, target)
+
     recipients = target.participants(current_user)
     recipients = add_project_watchers(recipients, project)
+
+    recipients = add_custom_notifications(recipients, project, custom_action)
     recipients = reject_mention_users(recipients, project)
 
+    recipients = recipients.uniq
+
     # Re-assign is considered as a mention of the new assignee so we add the
     # new assignee to the list of recipients after we rejected users with
     # the "on mention" notification level
-    if action == :reassign
+    if [:reassign_merge_request, :reassign_issue].include?(custom_action)
       recipients << previous_assignee if previous_assignee
       recipients << target.assignee
     end
@@ -501,7 +541,7 @@ class NotificationService
     recipients = reject_muted_users(recipients, project)
     recipients = add_subscribed_users(recipients, target)
 
-    if action == :new
+    if [:new_issue, :new_merge_request].include?(custom_action)
       recipients = add_labels_subscribers(recipients, target)
     end
 
@@ -531,4 +571,10 @@ class NotificationService
       end
     end
   end
+
+  # Build event key to search on custom notification level
+  # Check NotificationSetting::EMAIL_EVENTS
+  def build_custom_key(action, object)
+    "#{action}_#{object.class.name.underscore}".to_sym
+  end
 end
diff --git a/app/views/profiles/notifications/_group_settings.html.haml b/app/views/profiles/notifications/_group_settings.html.haml
index f0cf82afe83..537bba21f4a 100644
--- a/app/views/profiles/notifications/_group_settings.html.haml
+++ b/app/views/profiles/notifications/_group_settings.html.haml
@@ -9,5 +9,4 @@
     = link_to group.name, group_path(group)
 
   .pull-right
-    = form_for [group, setting], remote: true, html: { class: 'update-notifications' } do |f|
-      = f.select :level, NotificationSetting.levels.keys, {}, class: 'form-control trigger-submit'
+    = render 'shared/notifications/button', notification_setting: setting
diff --git a/app/views/profiles/notifications/_project_settings.html.haml b/app/views/profiles/notifications/_project_settings.html.haml
index e0fad555c09..5b2a69b8891 100644
--- a/app/views/profiles/notifications/_project_settings.html.haml
+++ b/app/views/profiles/notifications/_project_settings.html.haml
@@ -9,5 +9,4 @@
     = link_to_project(project)
 
   .pull-right
-    = form_for [project.namespace.becomes(Namespace), project, setting], remote: true, html: { class: 'update-notifications' } do |f|
-      = f.select :level, NotificationSetting.levels.keys, {}, class: 'form-control trigger-submit'
+    = render 'shared/notifications/button', notification_setting: setting
diff --git a/app/views/profiles/notifications/show.html.haml b/app/views/profiles/notifications/show.html.haml
index f2659ac14b5..5afd83a522e 100644
--- a/app/views/profiles/notifications/show.html.haml
+++ b/app/views/profiles/notifications/show.html.haml
@@ -24,12 +24,15 @@
         .form-group
           = f.label :notification_email, class: "label-light"
           = f.select :notification_email, @user.all_emails, { include_blank: false }, class: "select2"
-        .form-group
-          = f.label :notification_level, class: 'label-light'
-          = notification_level_radio_buttons
 
-        .prepend-top-default
-          = f.submit 'Update settings', class: "btn btn-create"
+      = label_tag :global_notification_level, "Global notification level", class: "label-light"
+      %br
+      .clearfix
+      .form-group.pull-left
+        = render 'shared/notifications/button', notification_setting: @global_notification_setting, left_align: true
+
+      .clearfix
+
       %hr
       %h5
         Groups (#{@group_notifications.count})
diff --git a/app/views/projects/_home_panel.html.haml b/app/views/projects/_home_panel.html.haml
index 2b19ee93eea..f6bfa567fd0 100644
--- a/app/views/projects/_home_panel.html.haml
+++ b/app/views/projects/_home_panel.html.haml
@@ -29,13 +29,13 @@
           .project-clone-holder
             = render "shared/clone_panel"
 
-      .project-repo-buttons.project-right-buttons
+      .project-repo-buttons.btn-group.project-right-buttons
         - if current_user
           = render 'shared/members/access_request_buttons', source: @project
-        .btn-group
-          = render "projects/buttons/download"
-          = render 'projects/buttons/dropdown'
-          = render 'projects/buttons/notifications'
+
+        = render "projects/buttons/download"
+        = render 'projects/buttons/dropdown'
+        = render 'shared/notifications/button', notification_setting: @notification_setting
 
 :javascript
   new Star();
diff --git a/app/views/projects/buttons/_notifications.html.haml b/app/views/projects/buttons/_notifications.html.haml
deleted file mode 100644
index a7a97181096..00000000000
--- a/app/views/projects/buttons/_notifications.html.haml
+++ /dev/null
@@ -1,11 +0,0 @@
-- if @notification_setting
-  = form_for @notification_setting, url: namespace_project_notification_setting_path(@project.namespace.becomes(Namespace), @project), method: :patch, remote: true, html: { class: 'inline', id: 'notification-form' } do |f|
-    = f.hidden_field :level
-    .dropdown.hidden-sm
-      %button.btn.btn-default.notifications-btn#notifications-button{ data: { toggle: "dropdown" }, aria: { haspopup: "true", expanded: "false" } }
-        = icon('bell')
-        = notification_title(@notification_setting.level)
-        = icon('caret-down')
-      %ul.dropdown-menu.dropdown-menu-no-wrap.dropdown-menu-align-right.dropdown-menu-selectable.dropdown-menu-large{ role: "menu" }
-        - NotificationSetting.levels.each do |level|
-          = notification_list_item(level.first, @notification_setting)
diff --git a/app/views/shared/notifications/_button.html.haml b/app/views/shared/notifications/_button.html.haml
new file mode 100644
index 00000000000..ff1cf966a9b
--- /dev/null
+++ b/app/views/shared/notifications/_button.html.haml
@@ -0,0 +1,25 @@
+- left_align = local_assigns[:left_align]
+- if notification_setting
+  .dropdown.notification-dropdown.pull-right
+    = form_for notification_setting, remote: true, html: { class: "inline notification-form" } do |f|
+      = hidden_setting_source_input(notification_setting)
+      = f.hidden_field :level, class: "notification_setting_level"
+      .js-notification-toggle-btns
+        %div{ class: ("btn-group" if notification_setting.custom?) }
+          - if notification_setting.custom?
+            %button.dropdown-new.btn.btn-default.notifications-btn#notifications-button{ type: "button", data: { toggle: "modal", target: "#" + notifications_menu_identifier("modal", notification_setting) } }
+              = icon("bell", class: "js-notification-loading")
+              = notification_title(notification_setting.level)
+            %button.btn.dropdown-toggle{ data: { toggle: "dropdown", target: notifications_menu_identifier("dropdown", notification_setting) } }
+              %span.caret
+              .sr-only Toggle dropdown
+          - else
+            %button.dropdown-new.btn.btn-default.notifications-btn#notifications-button{ type: "button", data: { toggle: "dropdown", target: notifications_menu_identifier("dropdown", notification_setting) } }
+              = icon("bell", class: "js-notification-loading")
+              = notification_title(notification_setting.level)
+              = icon("caret-down")
+
+          = render "shared/notifications/notification_dropdown", notification_setting: notification_setting, left_align: left_align
+
+          = content_for :scripts_body do
+            = render "shared/notifications/custom_notifications", notification_setting: notification_setting
diff --git a/app/views/shared/notifications/_custom_notifications.html.haml b/app/views/shared/notifications/_custom_notifications.html.haml
new file mode 100644
index 00000000000..b704981e3db
--- /dev/null
+++ b/app/views/shared/notifications/_custom_notifications.html.haml
@@ -0,0 +1,31 @@
+.modal.fade{ tabindex: "-1", role: "dialog", id: notifications_menu_identifier("modal", notification_setting), aria: { labelledby: "custom-notifications-title" } }
+  .modal-dialog
+    .modal-content
+      .modal-header
+        %button.close{ type: "button", data: { dismiss: "modal" }, aria: { label: "close" } }
+          %span{ aria: { hidden: "true" } } ×
+        %h4#custom-notifications-title.modal-title
+          Custom notification events
+
+      .modal-body
+        .container-fluid
+          = form_for notification_setting, html: { class: "custom-notifications-form" } do |f|
+            = hidden_setting_source_input(notification_setting)
+            .row
+              .col-lg-4
+                %h4.prepend-top-0
+                  Notification events
+                %p
+                  Custom notification levels are the same as participating levels. With custom notification levels you will also receive notifications for select events. To find out more, check out
+                  = succeed "." do
+                    %a{ href: "http://docs.gitlab.com/ce/workflow/notifications.html", target: "_blank"} notification emails
+              .col-lg-8
+                - NotificationSetting::EMAIL_EVENTS.each_with_index do |event, index|
+                  - field_id = "#{notifications_menu_identifier("modal", notification_setting)}_notification_setting[#{event}]"
+                  .form-group
+                    .checkbox{ class: ("prepend-top-0" if index == 0) }
+                      %label{ for: field_id }
+                        = check_box("notification_setting", event, id: field_id, class: "js-custom-notification-event", checked: notification_setting.events[event])
+                        %strong
+                          = event.to_s.humanize
+                          = icon("spinner spin", class: "custom-notification-event-loading")
diff --git a/app/views/shared/notifications/_notification_dropdown.html.haml b/app/views/shared/notifications/_notification_dropdown.html.haml
new file mode 100644
index 00000000000..d3258ee64cb
--- /dev/null
+++ b/app/views/shared/notifications/_notification_dropdown.html.haml
@@ -0,0 +1,13 @@
+- left_align = local_assigns[:left_align]
+%ul.dropdown-menu.dropdown-menu-no-wrap.dropdown-menu-selectable.dropdown-menu-large{ role: "menu", class: [notifications_menu_identifier("dropdown", notification_setting), ("dropdown-menu-align-right" unless left_align)] }
+  - NotificationSetting.levels.each_key do |level|
+    - next if level == "custom"
+    - next if level == "global" && notification_setting.source.nil?
+
+    = notification_list_item(level, notification_setting)
+
+  %li.divider
+  %li
+    %a.update-notification{ href: "#", role: "button", class: ("is-active" if notification_setting.custom?), data: { toggle: "modal", target: "#" + notifications_menu_identifier("modal", notification_setting), notification_level: "custom", notification_title: "Custom" } }
+      %strong.dropdown-menu-inner-title Custom
+      %span.dropdown-menu-inner-content= notification_description("custom")
diff --git a/config/routes.rb b/config/routes.rb
index 987d8507763..de6094fa0ed 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -123,10 +123,18 @@ Rails.application.routes.draw do
     end
   end
 
+  #
   # Spam reports
+  #
   resources :abuse_reports, only: [:new, :create]
 
   #
+  # Notification settings
+  #
+  resources :notification_settings, only: [:create, :update]
+
+
+  #
   # Import
   #
   namespace :import do
@@ -432,7 +440,6 @@ Rails.application.routes.draw do
 
       resource :avatar, only: [:destroy]
       resources :milestones, constraints: { id: /[^\/]+/ }, only: [:index, :show, :update, :new, :create]
-      resource :notification_setting, only: [:update]
     end
   end
 
@@ -668,7 +675,6 @@ Rails.application.routes.draw do
 
         resources :forks, only: [:index, :new, :create]
         resource :import, only: [:new, :create, :show]
-        resource :notification_setting, only: [:update]
 
         resources :refs, only: [] do
           collection do
diff --git a/db/migrate/20160617301627_add_events_to_notification_settings.rb b/db/migrate/20160617301627_add_events_to_notification_settings.rb
new file mode 100644
index 00000000000..609596f45e4
--- /dev/null
+++ b/db/migrate/20160617301627_add_events_to_notification_settings.rb
@@ -0,0 +1,7 @@
+class AddEventsToNotificationSettings < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  def change
+    add_column :notification_settings, :events, :text
+  end
+end
diff --git a/doc/workflow/notifications.md b/doc/workflow/notifications.md
index cbca94c0b5e..fe4485e148a 100644
--- a/doc/workflow/notifications.md
+++ b/doc/workflow/notifications.md
@@ -4,7 +4,7 @@ GitLab has a notification system in place to notify a user of events that are im
 
 ## Notification settings
 
-Under user profile page you can find the notification settings.
+You can find notification settings under the user profile.
 
 ![notification settings](notifications/settings.png)
 
@@ -20,6 +20,7 @@ Each of these settings have levels of notification:
 * Participating - receive notifications from related resources
 * Watch - receive notifications from projects or groups user is a member of
 * Global - notifications as set at the global settings
+* Custom - user will receive notifications when mentioned, is participant and custom selected events.
 
 #### Global Settings
 
@@ -55,7 +56,7 @@ Below is the table of events users can be notified of:
 | User added to project        | User                                                              | Sent when user is added to project |
 | Project access level changed | User                                                              | Sent when user project access level is changed |
 | User added to group          | User                                                              | Sent when user is added to group |
-| Group access level changed   | User                                                              | Sent when user group access level is changed | 
+| Group access level changed   | User                                                              | Sent when user group access level is changed |
 | Project moved                | Project members [1]                                               | [1] not disabled |
 
 ### Issue / Merge Request events
@@ -71,6 +72,7 @@ In all of the below cases, the notification will be sent to:
 
 - Watchers: users with notification level "Watch"
 - Subscribers: anyone who manually subscribed to the issue/merge request
+- Custom: Users with notification level "custom" who turned on notifications for any of the events present in the table below
 
 | Event                  | Sent to |
 |------------------------|---------|
diff --git a/doc/workflow/notifications/settings.png b/doc/workflow/notifications/settings.png
index e5b50ee2494..7c6857aad1a 100644
--- a/doc/workflow/notifications/settings.png
+++ b/doc/workflow/notifications/settings.png
diff --git a/features/steps/profile/notifications.rb b/features/steps/profile/notifications.rb
index a96f35ada51..979f4692d5a 100644
--- a/features/steps/profile/notifications.rb
+++ b/features/steps/profile/notifications.rb
@@ -11,7 +11,7 @@ class Spinach::Features::ProfileNotifications < Spinach::FeatureSteps
   end
 
   step 'I select Mention setting from dropdown' do
-    select 'mention', from: 'notification_setting_level'
+    first(:link, "On mention").trigger('click')
   end
 
   step 'I should see Notification saved message' do
diff --git a/features/steps/project/project.rb b/features/steps/project/project.rb
index 2a1a8e776f0..98b57e5cbfb 100644
--- a/features/steps/project/project.rb
+++ b/features/steps/project/project.rb
@@ -126,7 +126,7 @@ class Spinach::Features::Project < Spinach::FeatureSteps
   end
 
   step 'I click notifications drop down button' do
-    find('#notifications-button').click
+    first('.notifications-btn').click
   end
 
   step 'I choose Mention setting' do
diff --git a/spec/controllers/groups/notification_settings_controller_spec.rb b/spec/controllers/groups/notification_settings_controller_spec.rb
deleted file mode 100644
index 0786e45515a..00000000000
--- a/spec/controllers/groups/notification_settings_controller_spec.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-require 'spec_helper'
-
-describe Groups::NotificationSettingsController do
-  let(:group) { create(:group) }
-  let(:user) { create(:user) }
-
-  describe '#update' do
-    context 'when not authorized' do
-      it 'redirects to sign in page' do
-        put :update,
-            group_id: group.to_param,
-            notification_setting: { level: :participating }
-
-        expect(response).to redirect_to(new_user_session_path)
-      end
-    end
-
-    context 'when authorized' do
-      before do
-        sign_in(user)
-      end
-
-      it 'returns success' do
-        put :update,
-            group_id: group.to_param,
-            notification_setting: { level: :participating }
-
-        expect(response.status).to eq 200
-      end
-    end
-  end
-end
diff --git a/spec/controllers/notification_settings_controller_spec.rb b/spec/controllers/notification_settings_controller_spec.rb
new file mode 100644
index 00000000000..15d155833b4
--- /dev/null
+++ b/spec/controllers/notification_settings_controller_spec.rb
@@ -0,0 +1,125 @@
+require 'spec_helper'
+
+describe NotificationSettingsController do
+  let(:project) { create(:empty_project) }
+  let(:user) { create(:user) }
+
+  before do
+    project.team << [user, :developer]
+  end
+
+  describe '#create' do
+    context 'when not authorized' do
+      it 'redirects to sign in page' do
+        post :create,
+             project: { id: project.id },
+             notification_setting: { level: :participating }
+
+        expect(response).to redirect_to(new_user_session_path)
+      end
+    end
+
+    context 'when authorized' do
+      before do
+        sign_in(user)
+      end
+
+      it 'returns success' do
+        post :create,
+             project: { id: project.id },
+             notification_setting: { level: :participating }
+
+        expect(response.status).to eq 200
+      end
+
+      context 'and setting custom notification setting' do
+        let(:custom_events) do
+          events = {}
+
+          NotificationSetting::EMAIL_EVENTS.each do |event|
+            events[event] = "true"
+          end
+        end
+
+        it 'returns success' do
+          post :create,
+               project: { id: project.id },
+               notification_setting: { level: :participating, events: custom_events }
+
+          expect(response.status).to eq 200
+        end
+      end
+    end
+
+    context 'not authorized' do
+      let(:private_project) { create(:project, :private) }
+      before { sign_in(user) }
+
+      it 'returns 404' do
+        post :create,
+             project: { id: private_project.id },
+             notification_setting: { level: :participating }
+
+        expect(response.status).to eq(404)
+      end
+    end
+  end
+
+  describe '#update' do
+    let(:notification_setting) { user.global_notification_setting }
+
+    context 'when not authorized' do
+      it 'redirects to sign in page' do
+        put :update,
+            id: notification_setting,
+            notification_setting: { level: :participating }
+
+        expect(response).to redirect_to(new_user_session_path)
+      end
+    end
+
+    context 'when authorized' do
+      before{ sign_in(user) }
+
+      it 'returns success' do
+        put :update,
+            id: notification_setting,
+            notification_setting: { level: :participating }
+
+        expect(response.status).to eq 200
+      end
+
+      context 'and setting custom notification setting' do
+        let(:custom_events) do
+          events = {}
+
+          NotificationSetting::EMAIL_EVENTS.each do |event|
+            events[event] = "true"
+          end
+        end
+
+        it 'returns success' do
+          put :update,
+              id: notification_setting,
+              notification_setting: { level: :participating, events: custom_events }
+
+          expect(response.status).to eq 200
+        end
+      end
+    end
+
+    context 'not authorized' do
+      let(:other_user) { create(:user) }
+
+      before { sign_in(other_user) }
+
+      it 'returns 404' do
+        put :update,
+            id: notification_setting,
+            notification_setting: { level: :participating }
+
+        expect(response.status).to eq(404)
+      end
+    end
+  end
+end
diff --git a/spec/controllers/projects/notification_settings_controller_spec.rb b/spec/controllers/projects/notification_settings_controller_spec.rb
deleted file mode 100644
index c5d17d97ec9..00000000000
--- a/spec/controllers/projects/notification_settings_controller_spec.rb
+++ /dev/null
@@ -1,52 +0,0 @@
-require 'spec_helper'
-
-describe Projects::NotificationSettingsController do
-  let(:project) { create(:empty_project) }
-  let(:user) { create(:user) }
-
-  before do
-    project.team << [user, :developer]
-  end
-
-  describe '#update' do
-    context 'when not authorized' do
-      it 'redirects to sign in page' do
-        put :update,
-            namespace_id: project.namespace.to_param,
-            project_id: project.to_param,
-            notification_setting: { level: :participating }
-
-        expect(response).to redirect_to(new_user_session_path)
-      end
-    end
-
-    context 'when authorized' do
-      before do
-        sign_in(user)
-      end
-
-      it 'returns success' do
-        put :update,
-            namespace_id: project.namespace.to_param,
-            project_id: project.to_param,
-            notification_setting: { level: :participating }
-
-        expect(response.status).to eq 200
-      end
-    end
-
-    context 'not authorized' do
-      let(:private_project) { create(:project, :private) }
-      before { sign_in(user) }
-
-      it 'returns 404' do
-        put :update,
-            namespace_id: private_project.namespace.to_param,
-            project_id: private_project.to_param,
-            notification_setting: { level: :participating }
-
-        expect(response.status).to eq(404)
-      end
-    end
-  end
-end
diff --git a/spec/models/notification_setting_spec.rb b/spec/models/notification_setting_spec.rb
index 4e24e89b008..df336a6effe 100644
--- a/spec/models/notification_setting_spec.rb
+++ b/spec/models/notification_setting_spec.rb
@@ -12,5 +12,30 @@ RSpec.describe NotificationSetting, type: :model do
     it { is_expected.to validate_presence_of(:user) }
     it { is_expected.to validate_presence_of(:level) }
     it { is_expected.to validate_uniqueness_of(:user_id).scoped_to([:source_id, :source_type]).with_message(/already exists in source/) }
+
+    context "events" do
+      let(:user) { create(:user) }
+      let(:notification_setting) { NotificationSetting.new(source_id: 1, source_type: 'Project', user_id: user.id) }
+
+      before do
+        notification_setting.level = "custom"
+        notification_setting.new_note = "true"
+        notification_setting.new_issue = 1
+        notification_setting.close_issue = "1"
+        notification_setting.merge_merge_request = "t"
+        notification_setting.close_merge_request = "nil"
+        notification_setting.reopen_merge_request = "false"
+        notification_setting.save
+      end
+
+      it "parses boolean before saving" do
+        expect(notification_setting.new_note).to eq(true)
+        expect(notification_setting.new_issue).to eq(true)
+        expect(notification_setting.close_issue).to eq(true)
+        expect(notification_setting.merge_merge_request).to eq(true)
+        expect(notification_setting.close_merge_request).to eq(false)
+        expect(notification_setting.reopen_merge_request).to eq(false)
+      end
+    end
   end
 end
diff --git a/spec/requests/api/projects_spec.rb b/spec/requests/api/projects_spec.rb
index f167813e07d..01eb4b44b83 100644
--- a/spec/requests/api/projects_spec.rb
+++ b/spec/requests/api/projects_spec.rb
@@ -428,8 +428,9 @@ describe API::API, api: true  do
 
     describe 'permissions' do
       context 'all projects' do
-        it 'Contains permission information' do
-          project.team << [user, :master]
+        before { project.team << [user, :master] }
+
+        it 'contains permission information' do
           get api("/projects", user)
 
           expect(response.status).to eq(200)
@@ -440,7 +441,7 @@ describe API::API, api: true  do
       end
 
       context 'personal project' do
-        it 'Sets project access and returns 200' do
+        it 'sets project access and returns 200' do
           project.team << [user, :master]
           get api("/projects/#{project.id}", user)
 
@@ -452,9 +453,11 @@ describe API::API, api: true  do
       end
 
       context 'group project' do
+        let(:project2) { create(:project, group: create(:group)) }
+
+        before { project2.group.add_owner(user) }
+
         it 'should set the owner and return 200' do
-          project2 = create(:project, group: create(:group))
-          project2.group.add_owner(user)
           get api("/projects/#{project2.id}", user)
 
           expect(response.status).to eq(200)
diff --git a/spec/services/notification_service_spec.rb b/spec/services/notification_service_spec.rb
index e871a103d42..776a6ab5edb 100644
--- a/spec/services/notification_service_spec.rb
+++ b/spec/services/notification_service_spec.rb
@@ -46,6 +46,8 @@ describe NotificationService, services: true do
         project.team << [issue.assignee, :master]
         project.team << [note.author, :master]
         create(:note_on_issue, noteable: issue, project_id: issue.project_id, note: '@subscribed_participant cc this guy')
+        update_custom_notification(:new_note, @u_guest_custom, project)
+        update_custom_notification(:new_note, @u_custom_global)
       end
 
       describe :new_note do
@@ -53,7 +55,7 @@ describe NotificationService, services: true do
           add_users_with_subscription(note.project, issue)
 
           # Ensure create SentNotification by noteable = issue 6 times, not noteable = note
-          expect(SentNotification).to receive(:record).with(issue, any_args).exactly(7).times
+          expect(SentNotification).to receive(:record).with(issue, any_args).exactly(8).times
 
           ActionMailer::Base.deliveries.clear
 
@@ -62,10 +64,12 @@ describe NotificationService, services: true do
           should_email(@u_watcher)
           should_email(note.noteable.author)
           should_email(note.noteable.assignee)
+          should_email(@u_custom_global)
           should_email(@u_mentioned)
           should_email(@subscriber)
           should_email(@watcher_and_subscriber)
           should_email(@subscribed_participant)
+          should_not_email(@u_guest_custom)
           should_not_email(@u_guest_watcher)
           should_not_email(note.author)
           should_not_email(@u_participating)
@@ -103,10 +107,12 @@ describe NotificationService, services: true do
         before do
           note.project.namespace_id = group.id
           note.project.group.add_user(@u_watcher, GroupMember::MASTER)
+          note.project.group.add_user(@u_custom_global, GroupMember::MASTER)
           note.project.save
 
           @u_watcher.notification_settings_for(note.project).participating!
           @u_watcher.notification_settings_for(note.project.group).global!
+          update_custom_notification(:new_note, @u_custom_global)
           ActionMailer::Base.deliveries.clear
         end
 
@@ -116,6 +122,8 @@ describe NotificationService, services: true do
           should_email(note.noteable.author)
           should_email(note.noteable.assignee)
           should_email(@u_mentioned)
+          should_email(@u_custom_global)
+          should_not_email(@u_guest_custom)
           should_not_email(@u_guest_watcher)
           should_not_email(@u_watcher)
           should_not_email(note.author)
@@ -136,6 +144,7 @@ describe NotificationService, services: true do
       let(:admin) { create(:admin) }
       let(:confidential_issue) { create(:issue, :confidential, project: project, author: author, assignee: assignee) }
       let(:note) { create(:note_on_issue, noteable: confidential_issue, project: project, note: "#{author.to_reference} #{assignee.to_reference} #{non_member.to_reference} #{member.to_reference} #{admin.to_reference}") }
+      let(:guest_watcher) { create_user_with_notification(:watch, "guest-watcher-confidential") }
 
       it 'filters out users that can not read the issue' do
         project.team << [member, :developer]
@@ -149,6 +158,7 @@ describe NotificationService, services: true do
 
         should_not_email(non_member)
         should_not_email(guest)
+        should_not_email(guest_watcher)
         should_email(author)
         should_email(assignee)
         should_email(member)
@@ -223,6 +233,9 @@ describe NotificationService, services: true do
             should_email(member)
           end
 
+          # it emails custom global users on mention
+          should_email(@u_custom_global)
+
           should_email(@u_guest_watcher)
           should_email(note.noteable.author)
           should_not_email(note.author)
@@ -241,13 +254,16 @@ describe NotificationService, services: true do
         build_team(note.project)
         ActionMailer::Base.deliveries.clear
         allow_any_instance_of(Commit).to receive(:author).and_return(@u_committer)
+        update_custom_notification(:new_note, @u_guest_custom, project)
+        update_custom_notification(:new_note, @u_custom_global)
       end
 
       describe '#new_note, #perform_enqueued_jobs' do
         it do
           notification.new_note(note)
-
           should_email(@u_guest_watcher)
+          should_email(@u_custom_global)
+          should_email(@u_guest_custom)
           should_email(@u_committer)
           should_email(@u_watcher)
           should_not_email(@u_mentioned)
@@ -288,6 +304,8 @@ describe NotificationService, services: true do
       build_team(issue.project)
       add_users_with_subscription(issue.project, issue)
       ActionMailer::Base.deliveries.clear
+      update_custom_notification(:new_issue, @u_guest_custom, project)
+      update_custom_notification(:new_issue, @u_custom_global)
     end
 
     describe '#new_issue' do
@@ -297,6 +315,8 @@ describe NotificationService, services: true do
         should_email(issue.assignee)
         should_email(@u_watcher)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
+        should_email(@u_custom_global)
         should_email(@u_participant_mentioned)
         should_not_email(@u_mentioned)
         should_not_email(@u_participating)
@@ -345,6 +365,7 @@ describe NotificationService, services: true do
 
           notification.new_issue(confidential_issue, @u_disabled)
 
+          should_not_email(@u_guest_watcher)
           should_not_email(non_member)
           should_not_email(author)
           should_not_email(guest)
@@ -356,12 +377,20 @@ describe NotificationService, services: true do
     end
 
     describe '#reassigned_issue' do
+
+      before do
+        update_custom_notification(:reassign_issue, @u_guest_custom, project)
+        update_custom_notification(:reassign_issue, @u_custom_global)
+      end
+
       it 'emails new assignee' do
         notification.reassigned_issue(issue, @u_disabled)
 
         should_email(issue.assignee)
         should_email(@u_watcher)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
+        should_email(@u_custom_global)
         should_email(@u_participant_mentioned)
         should_email(@subscriber)
         should_not_email(@unsubscriber)
@@ -378,8 +407,10 @@ describe NotificationService, services: true do
         should_email(@u_mentioned)
         should_email(@u_watcher)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
         should_email(@u_participant_mentioned)
         should_email(@subscriber)
+        should_email(@u_custom_global)
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
@@ -394,8 +425,10 @@ describe NotificationService, services: true do
         should_email(issue.assignee)
         should_email(@u_watcher)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
         should_email(@u_participant_mentioned)
         should_email(@subscriber)
+        should_email(@u_custom_global)
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
@@ -410,8 +443,10 @@ describe NotificationService, services: true do
         should_email(issue.assignee)
         should_email(@u_watcher)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
         should_email(@u_participant_mentioned)
         should_email(@subscriber)
+        should_email(@u_custom_global)
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
@@ -425,8 +460,10 @@ describe NotificationService, services: true do
         expect(issue.assignee).to be @u_mentioned
         should_email(@u_watcher)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
         should_email(@u_participant_mentioned)
         should_email(@subscriber)
+        should_email(@u_custom_global)
         should_not_email(issue.assignee)
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
@@ -529,6 +566,12 @@ describe NotificationService, services: true do
     end
 
     describe '#close_issue' do
+
+      before do
+        update_custom_notification(:close_issue, @u_guest_custom, project)
+        update_custom_notification(:close_issue, @u_custom_global)
+      end
+
       it 'should sent email to issue assignee and issue author' do
         notification.close_issue(issue, @u_disabled)
 
@@ -536,6 +579,8 @@ describe NotificationService, services: true do
         should_email(issue.author)
         should_email(@u_watcher)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
+        should_email(@u_custom_global)
         should_email(@u_participant_mentioned)
         should_email(@subscriber)
         should_email(@watcher_and_subscriber)
@@ -575,6 +620,11 @@ describe NotificationService, services: true do
     end
 
     describe '#reopen_issue' do
+      before do
+        update_custom_notification(:reopen_issue, @u_guest_custom, project)
+        update_custom_notification(:reopen_issue, @u_custom_global)
+      end
+
       it 'should send email to issue assignee and issue author' do
         notification.reopen_issue(issue, @u_disabled)
 
@@ -582,6 +632,8 @@ describe NotificationService, services: true do
         should_email(issue.author)
         should_email(@u_watcher)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
+        should_email(@u_custom_global)
         should_email(@u_participant_mentioned)
         should_email(@subscriber)
         should_email(@watcher_and_subscriber)
@@ -631,6 +683,11 @@ describe NotificationService, services: true do
     end
 
     describe '#new_merge_request' do
+      before do
+        update_custom_notification(:new_merge_request, @u_guest_custom, project)
+        update_custom_notification(:new_merge_request, @u_custom_global)
+      end
+
       it do
         notification.new_merge_request(merge_request, @u_disabled)
 
@@ -639,6 +696,8 @@ describe NotificationService, services: true do
         should_email(@watcher_and_subscriber)
         should_email(@u_participant_mentioned)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
+        should_email(@u_custom_global)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
         should_not_email(@u_lazy_participant)
@@ -685,6 +744,11 @@ describe NotificationService, services: true do
     end
 
     describe '#reassigned_merge_request' do
+      before do
+        update_custom_notification(:reassign_merge_request, @u_guest_custom, project)
+        update_custom_notification(:reassign_merge_request, @u_custom_global)
+      end
+
       it do
         notification.reassigned_merge_request(merge_request, merge_request.author)
 
@@ -694,6 +758,8 @@ describe NotificationService, services: true do
         should_email(@subscriber)
         should_email(@watcher_and_subscriber)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
+        should_email(@u_custom_global)
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
@@ -761,12 +827,19 @@ describe NotificationService, services: true do
     end
 
     describe '#closed_merge_request' do
+      before do
+        update_custom_notification(:close_merge_request, @u_guest_custom, project)
+        update_custom_notification(:close_merge_request, @u_custom_global)
+      end
+
       it do
         notification.close_mr(merge_request, @u_disabled)
 
         should_email(merge_request.assignee)
         should_email(@u_watcher)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
+        should_email(@u_custom_global)
         should_email(@u_participant_mentioned)
         should_email(@subscriber)
         should_email(@watcher_and_subscriber)
@@ -807,6 +880,12 @@ describe NotificationService, services: true do
     end
 
     describe '#merged_merge_request' do
+
+      before do
+        update_custom_notification(:merge_merge_request, @u_guest_custom, project)
+        update_custom_notification(:merge_merge_request, @u_custom_global)
+      end
+
       it do
         notification.merge_mr(merge_request, @u_disabled)
 
@@ -816,6 +895,8 @@ describe NotificationService, services: true do
         should_email(@subscriber)
         should_email(@watcher_and_subscriber)
         should_email(@u_guest_watcher)
+        should_email(@u_custom_global)
+        should_email(@u_guest_custom)
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
@@ -853,6 +934,11 @@ describe NotificationService, services: true do
     end
 
     describe '#reopen_merge_request' do
+      before do
+        update_custom_notification(:reopen_merge_request, @u_guest_custom, project)
+        update_custom_notification(:reopen_merge_request, @u_custom_global)
+      end
+
       it do
         notification.reopen_mr(merge_request, @u_disabled)
 
@@ -862,6 +948,8 @@ describe NotificationService, services: true do
         should_email(@subscriber)
         should_email(@watcher_and_subscriber)
         should_email(@u_guest_watcher)
+        should_email(@u_guest_custom)
+        should_email(@u_custom_global)
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
@@ -914,7 +1002,9 @@ describe NotificationService, services: true do
         should_email(@u_watcher)
         should_email(@u_participating)
         should_email(@u_lazy_participant)
+        should_email(@u_custom_global)
         should_not_email(@u_guest_watcher)
+        should_not_email(@u_guest_custom)
         should_not_email(@u_disabled)
       end
     end
@@ -929,13 +1019,15 @@ describe NotificationService, services: true do
     @u_committer             = create(:user, username: 'committer')
     @u_not_mentioned         = create_global_setting_for(create(:user, username: 'regular'), :participating)
     @u_outsider_mentioned    = create(:user, username: 'outsider')
+    @u_custom_global         = create_global_setting_for(create(:user, username: 'custom_global'), :custom)
 
     # User to be participant by default
     # This user does not contain any record in notification settings table
     # It should be treated with a :participating notification_level
     @u_lazy_participant      = create(:user, username: 'lazy-participant')
 
-    create_guest_watcher
+    @u_guest_watcher = create_user_with_notification(:watch, 'guest_watching')
+    @u_guest_custom = create_user_with_notification(:custom, 'guest_custom')
 
     project.team << [@u_watcher, :master]
     project.team << [@u_participating, :master]
@@ -945,6 +1037,7 @@ describe NotificationService, services: true do
     project.team << [@u_committer, :master]
     project.team << [@u_not_mentioned, :master]
     project.team << [@u_lazy_participant, :master]
+    project.team << [@u_custom_global, :master]
   end
 
   def create_global_setting_for(user, level)
@@ -955,10 +1048,20 @@ describe NotificationService, services: true do
     user
   end
 
-  def create_guest_watcher
-    @u_guest_watcher = create(:user, username: 'guest_watching')
-    setting = @u_guest_watcher.notification_settings_for(project)
-    setting.level = :watch
+  def create_user_with_notification(level, username)
+    user = create(:user, username: username)
+    setting = user.notification_settings_for(project)
+    setting.level = level
+    setting.save
+
+    user
+  end
+
+  # Create custom notifications
+  # When resource is nil it means global notification
+  def update_custom_notification(event, user, resource = nil)
+    setting = user.notification_settings_for(resource)
+    setting.events[event] = true
     setting.save
   end