Merge branch 'rs-task_list' into 'master'

Use task_list gem for task lists

Task Lists can now be used in comments, and they'll render in previews. 👏

Closes internal https://dev.gitlab.org/gitlab/gitlabhq/issues/2271

See merge request !599

CHANGELOG

@@ -35,7 +35,7 @@ v 7.11.0 (unreleased)
   - Show incompatible projects in Google Code import status (Stan Hu)
   - Fix bug where commit data would not appear in some subdirectories (Stan Hu)
   - Unescape branch names in compare commit (Stan Hu)
-  -
+  - Task lists are now usable in comments, and will show up in Markdown previews.
   - Fix bug where Slack service channel was not saved in admin template settings. (Stan Hu)
   - Move snippets UI to fluid layout
   - Improve UI for sidebar. Increase separation between navigation and content

Gemfile

@@ -87,20 +87,17 @@ gem "six"
 # Seed data
 gem "seed-fu"
 
-# Markup pipeline for GitLab
+# Markdown and HTML processing
 gem 'html-pipeline', '~> 1.11.0'
-
-# Markdown to HTML
-gem "github-markup"
-
-# Required markup gems by github-markdown
-gem 'redcarpet', '~> 3.2.3'
+gem 'task_list',     '~> 1.0.0', require: 'task_list/railtie'
+gem 'github-markup'
+gem 'redcarpet',     '~> 3.2.3'
 gem 'RedCloth'
-gem 'rdoc', '~>3.6'
-gem 'org-ruby', '= 0.9.12'
-gem 'creole', '~>0.3.6'
-gem 'wikicloth', '=0.8.1'
-gem 'asciidoctor', '= 0.1.4'
+gem 'rdoc',          '~>3.6'
+gem 'org-ruby',      '= 0.9.12'
+gem 'creole',        '~>0.3.6'
+gem 'wikicloth',     '=0.8.1'
+gem 'asciidoctor',   '= 0.1.4'
 
 # Diffs
 gem 'diffy', '~> 3.0.3'
@@ -251,7 +248,6 @@ group :development, :test do
   # PhantomJS driver for Capybara
   gem 'poltergeist', '~> 1.5.1'
 
-  gem 'jasmine', '~> 2.2.0'
   gem 'jasmine-rails'
 
   gem "spring", '~> 1.3.1'

Gemfile.lock

@@ -290,11 +290,6 @@ GEM
     i18n (0.7.0)
     ice_cube (0.11.1)
     ice_nine (0.10.0)
-    jasmine (2.2.0)
-      jasmine-core (~> 2.2)
-      phantomjs
-      rack (>= 1.2.1)
-      rake
     jasmine-core (2.2.0)
     jasmine-rails (0.10.8)
       jasmine-core (>= 1.3, < 3.0)
@@ -597,6 +592,8 @@ GEM
     stamp (0.5.0)
     state_machine (1.2.0)
     stringex (2.5.2)
+    task_list (1.0.2)
+      html-pipeline
     temple (0.6.7)
     term-ansicolor (1.2.2)
       tins (~> 0.8)
@@ -724,7 +721,6 @@ DEPENDENCIES
   hipchat (~> 1.5.0)
   html-pipeline (~> 1.11.0)
   httparty
-  jasmine (~> 2.2.0)
   jasmine-rails
   jquery-atwho-rails (~> 1.0.0)
   jquery-rails
@@ -789,6 +785,7 @@ DEPENDENCIES
   spring-commands-spinach (= 1.0.0)
   stamp
   state_machine
+  task_list (~> 1.0.0)
   test_after_commit
   thin
   tinder (~> 1.9.2)

app/assets/javascripts/behaviors/taskable.js.coffee

-window.updateTaskState = (taskableType) ->
-  objType = taskableType.data
-  isChecked = $(this).prop("checked")
-  if $(this).is(":checked")
-    stateEvent = "task_check"
-  else
-    stateEvent = "task_uncheck"
-
-  taskableUrl = $("form.edit-" + objType).first().attr("action")
-  taskableNum = taskableUrl.match(/\d+$/)
-  taskNum = 0
-  $("li.task-list-item input:checkbox").each( (index, e) =>
-    if e == this
-      taskNum = index + 1
-  )
-
-  $.ajax
-    type: "PATCH"
-    url: taskableUrl
-    data: objType + "[state_event]=" + stateEvent +
-      "&" + objType + "[task_num]=" + taskNum

app/assets/javascripts/issue.js.coffee

+#= require jquery
+#= require jquery.waitforimages
+#= require task_list
+
 class @Issue
   constructor: ->
     $('.edit-issue.inline-update input[type="submit"]').hide()
@@ -6,11 +10,11 @@ class @Issue
     $(".context .inline-update").on "change", "#issue_assignee_id", ->
       $(this).submit()
 
-    if $("a.btn-close").length
-      $("li.task-list-item input:checkbox").prop("disabled", false)
+    # Prevent duplicate event bindings
+    @disableTaskList()
 
-    $('.task-list-item input:checkbox').off('change')
-    $('.task-list-item input:checkbox').change('issue', updateTaskState)
+    if $("a.btn-close").length
+      @initTaskList()
 
     $('.issue-details').waitForImages ->
       $('.issuable-affix').affix offset:
@@ -22,3 +26,22 @@ class @Issue
         $(@).width($(@).outerWidth())
       .on 'affixed-top.bs.affix affixed-bottom.bs.affix', ->
         $(@).width('')
+
+  initTaskList: ->
+    $('.issue-details .js-task-list-container').taskList('enable')
+    $(document).on 'tasklist:changed', '.issue-details .js-task-list-container', @updateTaskList
+
+  disableTaskList: ->
+    $('.issue-details .js-task-list-container').taskList('disable')
+    $(document).off 'tasklist:changed', '.issue-details .js-task-list-container'
+
+  # TODO (rspeicher): Make the issue description inline-editable like a note so
+  # that we can re-use its form here
+  updateTaskList: ->
+    patchData = {}
+    patchData['issue'] = {'description': $('.js-task-list-field', this).val()}
+
+    $.ajax
+      type: 'PATCH'
+      url: $('form.js-issue-update').attr('action')
+      data: patchData

app/assets/javascripts/merge_request.js.coffee

+#= require jquery
+#= require bootstrap
+#= require task_list
+
 class @MergeRequest
   constructor: (@opts) ->
     @initContextWidget()
@@ -17,8 +21,11 @@ class @MergeRequest
 
     disableButtonIfEmptyField '#commit_message', '.accept_merge_request'
 
+    # Prevent duplicate event bindings
+    @disableTaskList()
+
     if $("a.btn-close").length
-      $("li.task-list-item input:checkbox").prop("disabled", false)
+      @initTaskList()
 
     $('.merge-request-details').waitForImages ->
       $('.issuable-affix').affix offset:
@@ -77,9 +84,6 @@ class @MergeRequest
       this.$('.remove_source_branch_in_progress').hide()
       this.$('.remove_source_branch_widget.failed').show()
 
-    $('.task-list-item input:checkbox').off('change')
-    $('.task-list-item input:checkbox').change('merge_request', updateTaskState)
-
   activateTab: (action) ->
     this.$('.merge-request-tabs li').removeClass 'active'
     this.$('.tab-content').hide()
@@ -156,3 +160,22 @@ class @MergeRequest
           else
             setTimeout(merge_request.mergeInProgress, 3000)
       dataType: 'json'
+
+  initTaskList: ->
+    $('.merge-request-details .js-task-list-container').taskList('enable')
+    $(document).on 'tasklist:changed', '.merge-request-details .js-task-list-container', @updateTaskList
+
+  disableTaskList: ->
+    $('.merge-request-details .js-task-list-container').taskList('disable')
+    $(document).off 'tasklist:changed', '.merge-request-details .js-task-list-container'
+
+  # TODO (rspeicher): Make the merge request description inline-editable like a
+  # note so that we can re-use its form here
+  updateTaskList: ->
+    patchData = {}
+    patchData['merge_request'] = {'description': $('.js-task-list-field', this).val()}
+
+    $.ajax
+      type: 'PATCH'
+      url: $('form.js-merge-request-update').attr('action')
+      data: patchData

app/assets/javascripts/notes.js.coffee

+#= require jquery
+#= require autosave
+#= require bootstrap
+#= require dropzone
+#= require dropzone_input
+#= require gfm_auto_complete
+#= require jquery.atwho
+#= require task_list
+
 class @Notes
   @interval: null
 
@@ -11,6 +20,7 @@ class @Notes
     @setupMainTargetNoteForm()
     @cleanBinding()
     @addBinding()
+    @initTaskList()
 
   addBinding: ->
     # add note to UI after creation
@@ -81,6 +91,9 @@ class @Notes
     $(document).off "click", ".js-note-target-reopen"
     $(document).off "click", ".js-note-target-close"
 
+    $('.note .js-task-list-container').taskList('disable')
+    $(document).off 'tasklist:changed', '.note .js-task-list-container'
+
   initRefresh: ->
     clearInterval(Notes.interval)
     Notes.interval = setInterval =>
@@ -114,6 +127,7 @@ class @Notes
     if @isNewNote(note)
       @note_ids.push(note.id)
       $('ul.main-notes-list').append(note.html)
+      @initTaskList()
 
   ###
   Check if note does not exists on page
@@ -268,6 +282,8 @@ class @Notes
     note_li.replaceWith(note.html)
     note_li.find('.note-edit-form').hide()
     note_li.find('.note-body > .note-text').show()
+    note_li.find('js-task-list-container').taskList('enable')
+    @enableTaskList()
 
   ###
   Called in response to clicking the edit note link
@@ -479,3 +495,13 @@ class @Notes
     else
       form.find('.js-note-target-reopen').text('Reopen')
       form.find('.js-note-target-close').text('Close')
+
+  initTaskList: ->
+    @enableTaskList()
+    $(document).on 'tasklist:changed', '.note .js-task-list-container', @updateTaskList
+
+  enableTaskList: ->
+    $('.note .js-task-list-container').taskList('enable')
+
+  updateTaskList: ->
+    $('form', this).submit()

app/assets/stylesheets/generic/typography.scss

@@ -37,7 +37,9 @@ pre {
     position: relative;
 
     a.anchor {
-      display: none;
+      // Setting `display: none` would prevent the anchor being scrolled to, so
+      // instead we set the height to 0 and it gets updated on hover.
+      height: 0;
     }
 
     &:hover > a.anchor {

app/assets/stylesheets/pages/notes.scss

@@ -62,6 +62,16 @@ ul.notes {
         word-wrap: break-word;
         @include md-typography;
 
+        // Reduce left padding of first ul element
+        ul.task-list:first-child {
+          padding-left: 10px;
+
+          // sub-lists should be padded normally
+          ul {
+            padding-left: 20px;
+          }
+        }
+
         hr {
           margin: 10px 0;
         }

app/helpers/notes_helper.rb

@@ -9,6 +9,10 @@ module NotesHelper
     hidden_field_tag(:target_id, note.noteable.id)
   end
 
+  def note_editable?(note)
+    note.editable? && can?(current_user, :admin_note, note)
+  end
+
   def link_to_commit_diff_line_note(note)
     if note.for_commit_diff_line?
       link_to(

app/models/concerns/taskable.rb

+require 'task_list'
+
 # Contains functionality for objects that can have task lists in their
 # descriptions.  Task list items can be added with Markdown like "* [x] Fix
 # bugs".
 #
 # Used by MergeRequest and Issue
 module Taskable
-  TASK_PATTERN_MD = /^(?<bullet> *[*-] *)\[(?<checked>[ xX])\]/.freeze
-  TASK_PATTERN_HTML = /^<li>(?<p_tag>\s*<p>)?\[(?<checked>[ xX])\]/.freeze
-
-  # Change the state of a task list item for this Taskable.  Edit the object's
-  # description by finding the nth task item and changing its checkbox
-  # placeholder to "[x]" if +checked+ is true, or "[ ]" if it's false.
-  # Note: task numbering starts with 1
-  def update_nth_task(n, checked)
-    index = 0
-    check_char = checked ? 'x' : ' '
+  # Called by `TaskList::Summary`
+  def task_list_items
+    return [] if description.blank?
 
-    # Do this instead of using #gsub! so that ActiveRecord detects that a field
-    # has changed.
-    self.description = self.description.gsub(TASK_PATTERN_MD) do |match|
-      index += 1
-      case index
-      when n then "#{$LAST_MATCH_INFO[:bullet]}[#{check_char}]"
-      else match
-      end
+    @task_list_items ||= description.scan(TaskList::Filter::ItemPattern).collect do |item|
+      # ItemPattern strips out the hyphen, but Item requires it. Rabble rabble.
+      TaskList::Item.new("- #{item}")
     end
+  end
 
-    save
+  def tasks
+    @tasks ||= TaskList.new(self)
   end
 
   # Return true if this object's description has any task list items.
   def tasks?
-    description && description.match(TASK_PATTERN_MD)
+    tasks.summary.items?
   end
 
   # Return a string that describes the current state of this Taskable's task
-  # list items, e.g. "20 tasks (12 done, 8 unfinished)"
+  # list items, e.g. "20 tasks (12 completed, 8 remaining)"
   def task_status
-    return nil unless description
-
-    num_tasks = 0
-    num_done = 0
-
-    description.scan(TASK_PATTERN_MD) do
-      num_tasks += 1
-      num_done += 1 unless $LAST_MATCH_INFO[:checked] == ' '
-    end
+    return '' if description.blank?
 
-    "#{num_tasks} tasks (#{num_done} done, #{num_tasks - num_done} unfinished)"
+    sum = tasks.summary
+    "#{sum.item_count} tasks (#{sum.complete_count} completed, #{sum.incomplete_count} remaining)"
   end
 end

app/views/projects/issues/_discussion.html.haml

 - content_for :note_actions do
   - if can?(current_user, :modify_issue, @issue)
     - if @issue.closed?
-      = link_to 'Reopen Issue', issue_path(@issue, issue: {state_event: :reopen }, status_only: true), method: :put, class: "btn btn-grouped btn-reopen js-note-target-reopen", title: 'Reopen Issue'
+      = link_to 'Reopen Issue', issue_path(@issue, issue: {state_event: :reopen}, status_only: true), method: :put, class: 'btn btn-grouped btn-reopen js-note-target-reopen', title: 'Reopen Issue'
     - else
-      = link_to 'Close Issue', issue_path(@issue, issue: {state_event: :close }, status_only: true), method: :put, class: "btn btn-grouped btn-close js-note-target-close", title: "Close Issue"
+      = link_to 'Close Issue', issue_path(@issue, issue: {state_event: :close}, status_only: true), method: :put, class: 'btn btn-grouped btn-close js-note-target-close', title: 'Close Issue'
 
 = render 'shared/show_aside'
 
@@ -15,11 +15,11 @@
       %span= pluralize(@issue.participants(current_user).count, 'participant')
       - @issue.participants(current_user).each do |participant|
         = link_to_member(@project, participant, name: false, size: 24)
-    .voting_notes#notes= render "projects/notes/notes_with_form"
+    .voting_notes#notes= render 'projects/notes/notes_with_form'
   %aside.col-md-3
     .issuable-affix
       .clearfix
-        %span.slead.has_tooltip{:"data-original-title" => 'Cross-project reference'}
+        %span.slead.has_tooltip{title: 'Cross-project reference'}
           = cross_project_reference(@project, @issue)
       %hr
       .context

app/views/projects/issues/_issue_context.html.haml

-= form_for [@project.namespace.becomes(Namespace), @project, @issue], remote: true, html: {class: 'edit-issue inline-update'} do |f|
+= form_for [@project.namespace.becomes(Namespace), @project, @issue], remote: true, html: {class: 'edit-issue inline-update js-issue-update'} do |f|
   %div.prepend-top-20
     .issuable-context-title
       %label

app/views/projects/issues/show.html.haml

@@ -13,17 +13,17 @@
 
       .pull-right
         - if can?(current_user, :write_issue, @project)
-          = link_to new_namespace_project_issue_path(@project.namespace, @project), class: "btn btn-grouped new-issue-link", title: "New Issue", id: "new_issue_link" do
-            %i.fa.fa-plus
+          = link_to new_namespace_project_issue_path(@project.namespace, @project), class: 'btn btn-grouped new-issue-link', title: 'New Issue', id: 'new_issue_link' do
+            = icon('plus')
             New Issue
         - if can?(current_user, :modify_issue, @issue)
           - if @issue.closed?
-            = link_to 'Reopen', issue_path(@issue, issue: {state_event: :reopen }, status_only: true), method: :put,  class: "btn btn-grouped btn-reopen"
+            = link_to 'Reopen', issue_path(@issue, issue: {state_event: :reopen}, status_only: true), method: :put, class: 'btn btn-grouped btn-reopen'
           - else
-            = link_to 'Close', issue_path(@issue, issue: {state_event: :close }, status_only: true), method: :put, class: "btn btn-grouped btn-close", title: "Close Issue"
+            = link_to 'Close', issue_path(@issue, issue: {state_event: :close}, status_only: true), method: :put, class: 'btn btn-grouped btn-close', title: 'Close Issue'
 
-          = link_to edit_namespace_project_issue_path(@project.namespace, @project, @issue), class: "btn btn-grouped issuable-edit" do
-            %i.fa.fa-pencil-square-o
+          = link_to edit_namespace_project_issue_path(@project.namespace, @project, @issue), class: 'btn btn-grouped issuable-edit' do
+            = icon('pencil-square-o')
             Edit
 
     %hr
@@ -31,11 +31,13 @@
       = gfm escape_once(@issue.title)
     %div
       - if @issue.description.present?
-        .description
+        .description{class: can?(current_user, :modify_issue, @issue) ? 'js-task-list-container' : ''}
           .wiki
             = preserve do
-              = markdown(@issue.description, parse_tasks: true)
+              = markdown(@issue.description)
+          %textarea.hidden.js-task-list-field
+            = @issue.description
 
     %hr
   .issue-discussion
-    = render "projects/issues/discussion"
+    = render 'projects/issues/discussion'

app/views/projects/merge_requests/show/_context.html.haml

-= form_for [@project.namespace.becomes(Namespace), @project, @merge_request], remote: true, html: {class: 'edit-merge_request inline-update'} do |f|
+= form_for [@project.namespace.becomes(Namespace), @project, @merge_request], remote: true, html: {class: 'edit-merge_request inline-update js-merge-request-update'} do |f|
   %div.prepend-top-20
     .issuable-context-title
       %label
@@ -19,13 +19,13 @@
         %span.back-to-milestone
           = link_to namespace_project_milestone_path(@project.namespace, @project, @merge_request.milestone) do
             %strong
-              %i.fa.fa-clock-o
+              = icon('clock-o')
               = @merge_request.milestone.title
       - else
         none
     .issuable-context-selectbox
       - if can?(current_user, :modify_merge_request, @merge_request)
-        = f.select(:milestone_id, milestone_options(@merge_request), { include_blank: "Select milestone" }, {class: 'select2 select2-compact js-select2 js-milestone'})
+        = f.select(:milestone_id, milestone_options(@merge_request), { include_blank: 'Select milestone' }, {class: 'select2 select2-compact js-select2 js-milestone'})
         = hidden_field_tag :merge_request_context
         = f.submit class: 'btn'
 
@@ -35,13 +35,13 @@
         %label
           Subscription:
       %button.btn.btn-block.subscribe-button{:type => 'button'}
-        %i.fa.fa-eye
-        %span= @merge_request.subscribed?(current_user) ? "Unsubscribe" : "Subscribe"
-      - subscribtion_status = @merge_request.subscribed?(current_user) ? "subscribed" : "unsubscribed"
-      .subscription-status{"data-status" => subscribtion_status}
-        .description-block.unsubscribed{class: ( "hidden" if @merge_request.subscribed?(current_user) )}
+        = icon('eye')
+        %span= @merge_request.subscribed?(current_user) ? 'Unsubscribe' : 'Subscribe'
+      - subscribtion_status = @merge_request.subscribed?(current_user) ? 'subscribed' : 'unsubscribed'
+      .subscription-status{data: {status: subscribtion_status}}
+        .description-block.unsubscribed{class: ( 'hidden' if @merge_request.subscribed?(current_user) )}
           You're not receiving notifications from this thread.
-        .description-block.subscribed{class: ( "hidden" unless @merge_request.subscribed?(current_user) )}
+        .description-block.subscribed{class: ( 'hidden' unless @merge_request.subscribed?(current_user) )}
           You're receiving notifications because you're subscribed to this thread.
 
 :coffeescript

app/views/projects/merge_requests/show/_mr_box.html.haml

@@ -3,7 +3,9 @@
 
 %div
   - if @merge_request.description.present?
-    .description
+    .description{class: can?(current_user, :modify_merge_request, @merge_request) ? 'js-task-list-container' : ''}
       .wiki
         = preserve do
-          = markdown(@merge_request.description, parse_tasks: true)
+          = markdown(@merge_request.description)
+      %textarea.hidden.js-task-list-field
+        = @merge_request.description

app/views/projects/notes/_edit_form.html.haml

 .note-edit-form
   = form_for note, url: namespace_project_note_path(@project.namespace, @project, note), method: :put, remote: true, authenticity_token: true do |f|
     = note_target_fields(note)
-    = render layout: 'projects/md_preview', locals: { preview_class: "note-text" } do
-      = render 'projects/zen', f: f, attr: :note,
-        classes: 'note_text js-note-text'
+    = render layout: 'projects/md_preview', locals: { preview_class: 'note-text' } do
+      = render 'projects/zen', f: f, attr: :note, classes: 'note_text js-note-text js-task-list-field'
 
       .comment-hints.clearfix
-        .pull-left Comments are parsed with #{link_to "GitLab Flavored Markdown", help_page_path("markdown", "markdown"),{ target: '_blank', tabindex: -1 }}
-        .pull-right Attach files by dragging & dropping or #{link_to "selecting them", '#', class: 'markdown-selector', tabindex: -1 }.
+        .pull-left Comments are parsed with #{link_to 'GitLab Flavored Markdown', help_page_path('markdown', 'markdown'),{ target: '_blank', tabindex: -1 }}
+        .pull-right Attach files by dragging & dropping or #{link_to 'selecting them', '#', class: 'markdown-selector', tabindex: -1 }.
 
     .note-form-actions
       .buttons
-        = f.submit 'Save Comment', class: "btn btn-primary btn-save btn-grouped js-comment-button"
-        = link_to  'Cancel', "#", class: "btn btn-cancel note-edit-cancel"
+        = f.submit 'Save Comment', class: 'btn btn-primary btn-save btn-grouped js-comment-button'
+        = link_to  'Cancel', '#', class: 'btn btn-cancel note-edit-cancel'
\ No newline at end of file

app/views/projects/notes/_note.html.haml

@@ -2,28 +2,28 @@
   .timeline-entry-inner
     .timeline-icon
       - if note.system
-        %span.fa.fa-circle
+        %span= icon('circle')
       - else
         = link_to user_path(note.author) do
-          = image_tag avatar_icon(note.author_email), class: "avatar s40", alt: ''
+          = image_tag avatar_icon(note.author_email), class: 'avatar s40', alt: ''
     .timeline-content
       .note-header
         .note-actions
           = link_to "##{dom_id(note)}", name: dom_id(note) do
-            %i.fa.fa-link
+            = icon('link')
             Link here
            
-          - if can?(current_user, :admin_note, note) && note.editable?
-            = link_to "#", title: "Edit comment", class: "js-note-edit" do
-              %i.fa.fa-pencil-square-o
+          - if note_editable?(note)
+            = link_to '#', title: 'Edit comment', class: 'js-note-edit' do
+              = icon('pencil-square-o')
               Edit
              
-            = link_to namespace_project_note_path(@project.namespace, @project, note), title: "Remove comment", method: :delete, data: { confirm: 'Are you sure you want to remove this comment?' }, remote: true, class: "danger js-note-delete" do
-              %i.fa.fa-trash-o.cred
+            = link_to namespace_project_note_path(@project.namespace, @project, note), title: 'Remove comment', method: :delete, data: { confirm: 'Are you sure you want to remove this comment?' }, remote: true, class: 'danger js-note-delete' do
+              = icon('trash-o', class: 'cred')
               Remove
         - if note.system
           = link_to user_path(note.author) do
-            = image_tag avatar_icon(note.author_email), class: "avatar s16", alt: ''
+            = image_tag avatar_icon(note.author_email), class: 'avatar s16', alt: ''
         = link_to_member(@project, note.author, avatar: false)
         %span.author-username
           = '@' + note.author.username
@@ -33,24 +33,24 @@
         - if note.superceded?(@notes)
           - if note.upvote?
             %span.vote.upvote.label.label-gray.strikethrough
-              %i.fa.fa-thumbs-up
+              = icon('thumbs-up')
               \+1
           - if note.downvote?
             %span.vote.downvote.label.label-gray.strikethrough
-              %i.fa.fa-thumbs-down
+              = icon('thumbs-down')
               \-1
         - else
           - if note.upvote?
             %span.vote.upvote.label.label-success
-              %i.fa.fa-thumbs-up
+              = icon('thumbs-up')
               \+1
           - if note.downvote?
             %span.vote.downvote.label.label-danger
-              %i.fa.fa-thumbs-down
+              = icon('thumbs-down')
               \-1
 
 
-      .note-body
+      .note-body{class: note_editable?(note) ? 'js-task-list-container' : ''}
         .note-text
           = preserve do
             = markdown(note.note, {no_header_anchors: true})
@@ -62,10 +62,10 @@
             = link_to note.attachment.url, target: '_blank' do
               = image_tag note.attachment.url, class: 'note-image-attach'
           .attachment
-            = link_to note.attachment.url, target: "_blank" do
-              %i.fa.fa-paperclip
+            = link_to note.attachment.url, target: '_blank' do
+              = icon('paperclip')
               = note.attachment_identifier
               = link_to delete_attachment_namespace_project_note_path(@project.namespace, @project, note),
-                title: "Delete this attachment", method: :delete, remote: true, data: { confirm: 'Are you sure you want to remove the attachment?' }, class: "danger js-note-attachment-delete" do
-                %i.fa.fa-trash-o.cred
+                title: 'Delete this attachment', method: :delete, remote: true, data: { confirm: 'Are you sure you want to remove the attachment?' }, class: 'danger js-note-attachment-delete' do
+                = icon('trash-o', class: 'cred')
       .clear

config/initializers/6_rack_profiler.rb

@@ -5,4 +5,5 @@ if Rails.env.development?
   Rack::MiniProfilerRails.initialize!(Rails.application)
   Rack::MiniProfiler.config.position = 'right'
   Rack::MiniProfiler.config.start_hidden = true
+  Rack::MiniProfiler.config.skip_paths << '/specs'
 end

doc/markdown/markdown.md

@@ -172,7 +172,7 @@ GFM will turn that reference into a link so you can navigate between them easily
 GFM will recognize the following:
 
 | input                  | references                 |
-|-----------------------:|:---------------------------|
+|:-----------------------|:---------------------------|
 | `@user_name`           | specific user              |
 | `@group_name`          | specific group             |
 | `@all`                 | entire team                |
@@ -189,7 +189,7 @@ GFM will recognize the following:
 GFM also recognizes certain cross-project references:
 
 | input                                   | references              |
-|----------------------------------------:|:------------------------|
+|:----------------------------------------|:------------------------|
 | `namespace/project#123`                 | issue                   |
 | `namespace/project!123`                 | merge request           |
 | `namespace/project$123`                 | snippet                 |
@@ -198,15 +198,23 @@ GFM also recognizes certain cross-project references:
 
 ## Task Lists
 
-You can add task lists to merge request and issue descriptions to keep track of to-do items.  To create a task, add an unordered list to the description in an issue or merge request, formatted like so:
+You can add task lists to issues, merge requests and comments. To create a task list, add a specially-formatted Markdown list, like so:
 
 ```no-highlight
-* [x] Completed task
-* [ ] Unfinished task
-    * [x] Nested task
+- [x] Completed task
+- [ ] Incomplete task
+    - [ ] Sub-task 1
+    - [x] Sub-task 2
+    - [ ] Sub-task 3
 ```
 
-Task lists can only be created in descriptions, not in titles or comments.  Task item state can be managed by editing the description's Markdown or by clicking the rendered checkboxes.
+- [x] Completed task
+- [ ] Incomplete task
+    - [ ] Sub-task 1
+    - [x] Sub-task 2
+    - [ ] Sub-task 3
+
+Task lists can only be created in descriptions, not in titles. Task item state can be managed by editing the description's Markdown or by toggling the rendered check boxes.
 
 # Standard Markdown
 
@@ -246,51 +254,38 @@ Alt-H2
 
 ### Header IDs and links
 
-All markdown rendered headers automatically get IDs, except for comments.
+All Markdown-rendered headers automatically get IDs, except in comments.
 
 On hover a link to those IDs becomes visible to make it easier to copy the link to the header to give it to someone else.
 
 The IDs are generated from the content of the header according to the following rules:
 
-1. remove the heading hashes `#` and process the rest of the line as it would be processed if it were not a header
-2. from the result, remove all HTML tags, but keep their inner content
-3. convert all characters to lowercase
-4. convert all characters except `[a-z0-9_-]` into hyphens `-`
-5. transform multiple adjacent hyphens into a single hyphen
-6. remove trailing and heading hyphens
+1. All text is converted to lowercase
+1. All non-word text (e.g., punctuation, HTML) is removed
+1. All spaces are converted to hyphens
+1. Two or more hyphens in a row are converted to one
+1. If a header with the same ID has already been generated, a unique
+   incrementing number is appended.
 
 For example:
 
 ```
-###### ..Ab_c-d. e [anchor](URL) ![alt text](URL)..
+# This header has spaces in it
+## This header has a :thumbsup: in it
+# This header has Unicode in it: 한글
+## This header has spaces in it
+### This header has spaces in it
 ```
 
-which renders as:
-
-###### ..Ab_c-d. e [anchor](URL) ![alt text](URL)..
-
-will first be converted by step 1) into a string like:
+Would generate the following link IDs:
 
-```
-..Ab_c-d. e <a href="URL">anchor</a> <img src="URL" alt="alt text"/>..
-```
+1. `this-header-has-spaces-in-it`
+1. `this-header-has-a-in-it`
+1. `this-header-has-unicode-in-it-한글`
+1. `this-header-has-spaces-in-it-1`
+1. `this-header-has-spaces-in-it-2`
 
-After removing the tags in step 2) we get:
-
-```
-..Ab_c-d. e anchor ..
-```
-
-And applying all the other steps gives the id:
-
-```
-ab_c-d-e-anchor
-```
-
-Note in particular how:
-
-- for markdown anchors `[text](URL)`, only the `text` is used
-- markdown images `![alt](URL)` are completely ignored
+Note that the Emoji processing happens before the header IDs are generated, so the Emoji is converted to an image which then gets removed from the ID.
 
 ## Emphasis
 
@@ -322,8 +317,6 @@ Strikethrough uses two tildes. ~~Scratch this.~~
   1. Ordered sub-list
 4. And another item.
 
-   Some text that should be aligned with the above item.
-
 * Unordered list can use asterisks
 - Or minuses
 + Or pluses
@@ -336,8 +329,6 @@ Strikethrough uses two tildes. ~~Scratch this.~~
   1. Ordered sub-list
 4. And another item.
 
-   Some text that should be aligned with the above item.
-
 * Unordered list can use asterisks
 - Or minuses
 + Or pluses
@@ -432,7 +423,7 @@ Quote break.
 
 You can also use raw HTML in your Markdown, and it'll mostly work pretty well.
 
-See the documentation for HTML::Pipeline's [SanitizationFilter](http://www.rubydoc.info/gems/html-pipeline/HTML/Pipeline/SanitizationFilter#WHITELIST-constant) class for the list of allowed HTML tags and attributes.  In addition to the default `SanitizationFilter` whitelist, GitLab allows the `class`, `id`, and `style` attributes.
+See the documentation for HTML::Pipeline's [SanitizationFilter](http://www.rubydoc.info/gems/html-pipeline/HTML/Pipeline/SanitizationFilter#WHITELIST-constant) class for the list of allowed HTML tags and attributes.  In addition to the default `SanitizationFilter` whitelist, GitLab allows `span` elements, as well as the `class`, and `id` attributes on all elements.
 
 ```no-highlight
 <dl>
@@ -536,6 +527,20 @@ Code above produces next output:
 
 The row of dashes between the table header and body must have at least three dashes in each column.
 
+By including colons in the header row, you can align the text within that column:
+
+```
+| Left Aligned | Centered | Right Aligned | Left Aligned | Centered | Right Aligned |
+| :----------- | :------: | ------------: | :----------- | :------: | ------------: |
+| Cell 1       | Cell 2   | Cell 3        | Cell 4       | Cell 5   | Cell 6        |
+| Cell 7       | Cell 8   | Cell 9        | Cell 10      | Cell 11  | Cell 12       |
+```
+
+| Left Aligned | Centered | Right Aligned | Left Aligned | Centered | Right Aligned |
+| :----------- | :------: | ------------: | :----------- | :------: | ------------: |
+| Cell 1       | Cell 2   | Cell 3        | Cell 4       | Cell 5   | Cell 6        |
+| Cell 7       | Cell 8   | Cell 9        | Cell 10      | Cell 11  | Cell 12       |
+
 ## References
 
 - This document leveraged heavily from the [Markdown-Cheatsheet](https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet).

features/project/issues/issues.feature

@@ -134,48 +134,15 @@ Feature: Project Issues
     And I should see "Release 0.4" in issues
     And I should not see "Tweet control" in issues
 
-  Scenario: Issue description should render task checkboxes
-    Given project "Shop" has "Tasks-open" open issue with task markdown
-    When I visit issue page "Tasks-open"
-    Then I should see task checkboxes in the description
-
-  @javascript
-  Scenario: Issue notes should not render task checkboxes
-    Given project "Shop" has "Tasks-open" open issue with task markdown
-    When I visit issue page "Tasks-open"
-    And I leave a comment with task markdown
-    Then I should not see task checkboxes in the comment
-
   @javascript
   Scenario: Issue notes should be editable with +1
-    Given project "Shop" has "Tasks-open" open issue with task markdown
-    When I visit issue page "Tasks-open"
+    Given project "Shop" have "Release 0.4" open issue
+    When I visit issue page "Release 0.4"
     And I leave a comment with a header containing "Comment with a header"
     Then The comment with the header should not have an ID
     And I edit the last comment with a +1
     Then I should see +1 in the description
 
-  # Task status in issues list
-
-  Scenario: Issues list should display task status
-    Given project "Shop" has "Tasks-open" open issue with task markdown
-    When I visit project "Shop" issues page
-    Then I should see the task status for the Taskable
-
-  # Toggling task items
-
-  @javascript
-  Scenario: Task checkboxes should be enabled for an open issue
-    Given project "Shop" has "Tasks-open" open issue with task markdown
-    When I visit issue page "Tasks-open"
-    Then Task checkboxes should be enabled
-
-  @javascript
-  Scenario: Task checkboxes should be disabled for a closed issue
-    Given project "Shop" has "Tasks-closed" closed issue with task markdown
-    When I visit issue page "Tasks-closed"
-    Then Task checkboxes should be disabled
-
   # Issue description preview
 
   @javascript
@@ -212,8 +179,8 @@ Feature: Project Issues
 
   @javascript
   Scenario: I can unsubscribe from issue
-    Given project "Shop" has "Tasks-open" open issue with task markdown
-    When I visit issue page "Tasks-open"
+    Given project "Shop" have "Release 0.4" open issue
+    When I visit issue page "Release 0.4"
     Then I should see that I am subscribed
     When I click button "Unsubscribe"
     Then I should see that I am unsubscribed

features/project/merge_requests.feature

@@ -96,16 +96,6 @@ Feature: Project Merge Requests
     And I leave a comment with a header containing "Comment with a header"
     Then The comment with the header should not have an ID
 
-  Scenario: Merge request description should render task checkboxes
-    Given project "Shop" has "MR-task-open" open MR with task markdown
-    When I visit merge request page "MR-task-open"
-    Then I should see task checkboxes in the description
-
-  Scenario: Merge request notes should not render task checkboxes
-    Given project "Shop" has "MR-task-open" open MR with task markdown
-    When I visit merge request page "MR-task-open"
-    Then I should not see task checkboxes in the comment
-
   # Toggling inline comments
 
   @javascript
@@ -173,28 +163,6 @@ Feature: Project Merge Requests
     And I click on the Changes tab via Javascript
     Then I should see the proper Inline and Side-by-side links
 
-  # Task status in issues list
-
-  Scenario: Merge requests list should display task status
-    Given project "Shop" has "MR-task-open" open MR with task markdown
-    When I visit project "Shop" merge requests page
-    Then I should see the task status for the Taskable
-
-  # Toggling task items
-
-  @javascript
-  Scenario: Task checkboxes should be enabled for an open merge request
-    Given project "Shop" has "MR-task-open" open MR with task markdown
-    When I visit merge request page "MR-task-open"
-    Then Task checkboxes should be enabled
-
-  @javascript
-  Scenario: Task checkboxes should be disabled for a closed merge request
-    Given project "Shop" has "MR-task-open" open MR with task markdown
-    And I visit merge request page "MR-task-open"
-    And I click link "Close"
-    Then Task checkboxes should be disabled
-
   # Description preview
 
   @javascript

features/steps/project/issues/issues.rb

@@ -179,14 +179,6 @@ class Spinach::Features::ProjectIssues < Spinach::FeatureSteps
            author: project.users.first)
   end
 
-  step 'project "Shop" has "Tasks-open" open issue with task markdown' do
-    create_taskable(:issue, 'Tasks-open')
-  end
-
-  step 'project "Shop" has "Tasks-closed" closed issue with task markdown' do
-    create_taskable(:closed_issue, 'Tasks-closed')
-  end
-
   step 'empty project "Empty Project"' do
     create :empty_project, name: 'Empty Project', namespace: @user.namespace
   end

features/steps/project/merge_requests.rb

@@ -108,10 +108,6 @@ class Spinach::Features::ProjectMergeRequests < Spinach::FeatureSteps
            author: project.users.first)
   end
 
-  step 'project "Shop" has "MR-task-open" open MR with task markdown' do
-    create_taskable(:merge_request, 'MR-task-open')
-  end
-
   step 'I switch to the diff tab' do
     visit diffs_namespace_project_merge_request_path(project.namespace, project, merge_request)
   end

features/steps/shared/markdown.rb

@@ -10,55 +10,10 @@ module SharedMarkdown
     find(:xpath, "#{node.path}/..").text.should == text
   end
 
-  def create_taskable(type, title)
-    desc_text = <<EOT.gsub(/^ {6}/, '')
-      * [ ] Task 1
-      * [x] Task 2
-EOT
-
-    case type
-    when :issue, :closed_issue
-      options = { project: project }
-    when :merge_request
-      options = { source_project: project, target_project: project }
-    end
-
-    create(
-      type,
-      options.merge(title: title,
-                    author: project.users.first,
-                    description: desc_text)
-    )
-  end
-
   step 'Header "Description header" should have correct id and link' do
     header_should_have_correct_id_and_link(1, 'Description header', 'description-header')
   end
 
-  step 'I should see task checkboxes in the description' do
-    expect(page).to have_selector(
-      'div.description li.task-list-item input[type="checkbox"]'
-    )
-  end
-
-  step 'I should see the task status for the Taskable' do
-    expect(find(:css, 'span.task-status').text).to eq(
-      '2 tasks (1 done, 1 unfinished)'
-    )
-  end
-
-  step 'Task checkboxes should be enabled' do
-    expect(page).to have_selector(
-      'div.description li.task-list-item input[type="checkbox"]:enabled'
-    )
-  end
-
-  step 'Task checkboxes should be disabled' do
-    expect(page).to have_selector(
-      'div.description li.task-list-item input[type="checkbox"]:disabled'
-    )
-  end
-
   step 'I should not see the Markdown preview' do
     expect(find('.gfm-form .js-md-preview')).not_to be_visible
   end

features/steps/shared/note.rb

@@ -122,20 +122,6 @@ module SharedNote
     end
   end
 
-  step 'I leave a comment with task markdown' do
-    within('.js-main-target-form') do
-      fill_in 'note[note]', with: '* [x] Task item'
-      click_button 'Add Comment'
-      sleep 0.05
-    end
-  end
-
-  step 'I should not see task checkboxes in the comment' do
-    expect(page).not_to have_selector(
-      'li.note div.timeline-content input[type="checkbox"]'
-    )
-  end
-
   step 'I edit the last comment with a +1' do
     find(".note").hover
     find('.js-note-edit').click

features/steps/shared/paths.rb

@@ -323,16 +323,6 @@ module SharedPaths
     visit namespace_project_issue_path(issue.project.namespace, issue.project, issue)
   end
 
-  step 'I visit issue page "Tasks-open"' do
-    issue = Issue.find_by(title: 'Tasks-open')
-    visit namespace_project_issue_path(issue.project.namespace, issue.project, issue)
-  end
-
-  step 'I visit issue page "Tasks-closed"' do
-    issue = Issue.find_by(title: 'Tasks-closed')
-    visit namespace_project_issue_path(issue.project.namespace, issue.project, issue)
-  end
-
   step 'I visit project "Shop" labels page' do
     project = Project.find_by(name: 'Shop')
     visit namespace_project_labels_path(project.namespace, project)
@@ -363,16 +353,6 @@ module SharedPaths
     visit namespace_project_merge_request_path(mr.target_project.namespace, mr.target_project, mr)
   end
 
-  step 'I visit merge request page "MR-task-open"' do
-    mr = MergeRequest.find_by(title: 'MR-task-open')
-    visit namespace_project_merge_request_path(mr.target_project.namespace, mr.target_project, mr)
-  end
-
-  step 'I visit merge request page "MR-task-closed"' do
-    mr = MergeRequest.find_by(title: 'MR-task-closed')
-    visit namespace_project_merge_request_path(mr.target_project.namespace, mr.target_project, mr)
-  end
-
   step 'I visit project "Shop" merge requests page' do
     visit namespace_project_merge_requests_path(project.namespace, project)
   end

lib/gitlab/markdown.rb

 require 'html/pipeline'
+require 'task_list/filter'
 
 module Gitlab
   # Custom parser for GitLab-flavored Markdown
@@ -31,9 +32,9 @@ module Gitlab
     # Public: Parse the provided text with GitLab-Flavored Markdown
     #
     # text         - the source text
-    # options      - parse_tasks          - render tasks
-    #              - xhtml                - output XHTML instead of HTML
-    #              - reference_only_path  - Use relative path for reference links
+    # options      - A Hash of options used to customize output (default: {}):
+    #                :xhtml               - output XHTML instead of HTML
+    #                :reference_only_path - Use relative path for reference links
     # project      - the project
     # html_options - extra options for the reference links as given to link_to
     def gfm_with_options(text, options = {}, project = @project, html_options = {})
@@ -45,7 +46,6 @@ module Gitlab
       text = text.dup.to_str
 
       options.reverse_merge!(
-        parse_tasks:          false,
         xhtml:                false,
         reference_only_path:  true
       )
@@ -76,10 +76,6 @@ module Gitlab
 
       text = result[:output].to_html(save_with: save_options)
 
-      if options[:parse_tasks]
-        text = parse_tasks(text)
-      end
-
       text.html_safe
     end
 
@@ -106,28 +102,10 @@ module Gitlab
         Gitlab::Markdown::SnippetReferenceFilter,
         Gitlab::Markdown::CommitRangeReferenceFilter,
         Gitlab::Markdown::CommitReferenceFilter,
-        Gitlab::Markdown::LabelReferenceFilter
-      ]
-    end
+        Gitlab::Markdown::LabelReferenceFilter,
 
-    # Turn list items that start with "[ ]" into HTML checkbox inputs.
-    def parse_tasks(text)
-      li_tag = '<li class="task-list-item">'
-      unchecked_box = '<input type="checkbox" value="on" disabled />'
-      checked_box = unchecked_box.sub(/\/>$/, 'checked="checked" />')
-
-      # Regexp captures don't seem to work when +text+ is an
-      # ActiveSupport::SafeBuffer, hence the `String.new`
-      String.new(text).gsub(Taskable::TASK_PATTERN_HTML) do
-        checked = $LAST_MATCH_INFO[:checked].downcase == 'x'
-        p_tag = $LAST_MATCH_INFO[:p_tag]
-
-        if checked
-          "#{li_tag}#{p_tag}#{checked_box}"
-        else
-          "#{li_tag}#{p_tag}#{unchecked_box}"
-        end
-      end
+        TaskList::Filter
+      ]
     end
   end
 end

lib/gitlab/markdown/table_of_contents_filter.rb

@@ -31,7 +31,7 @@ module Gitlab
           id = text.downcase
           id.gsub!(PUNCTUATION_REGEXP, '') # remove punctuation
           id.gsub!(' ', '-') # replace spaces with dash
-          id.squeeze!(' -') # replace multiple spaces or dashes with one
+          id.squeeze!('-') # replace multiple dashes with one
 
           uniq = (headers[id] > 0) ? "-#{headers[id]}" : ''
           headers[id] += 1

lib/tasks/jasmine.rake

+# Since we no longer explicitly require the 'jasmine' gem, we lost the
+# `jasmine:ci` task used by GitLab CI jobs.
+#
+# This provides a simple alias to run the `spec:javascript` task from the
+# 'jasmine-rails' gem.
+task jasmine: ['jasmine:ci']
+
+namespace :jasmine do
+  task :ci do
+    Rake::Task['spec:javascript'].invoke
+  end
+end

spec/features/markdown_spec.rb

@@ -24,6 +24,7 @@ require 'erb'
 #               -> Rinku (http, https, ftp)
 #               -> Other schemes
 #             -> References
+#             -> TaskList
 #           -> `html_safe`
 #           -> Template
 #
@@ -279,6 +280,15 @@ describe 'GitLab Markdown' do
         expect(body).to have_selector('a.gfm.gfm-label', count: 3)
       end
     end
+
+    describe 'Task Lists' do
+      it 'generates task lists' do
+        body = get_section('task-lists')
+        expect(body).to have_selector('ul.task-list', count: 2)
+        expect(body).to have_selector('li.task-list-item', count: 7)
+        expect(body).to have_selector('input[checked]', count: 3)
+      end
+    end
   end
 end
 
@@ -289,9 +299,8 @@ end
 # once. Unfortunately RSpec will not let you access `let`s in a `before(:all)`
 # block, so we fake it by encapsulating all the shared setup in this class.
 #
-# The class contains the raw Markup used in the test, dynamically substituting
-# real objects, created from factories and setup on-demand, when referenced in
-# the Markdown.
+# The class renders `spec/fixtures/markdown.md.erb` using ERB, allowing for
+# reference to the factory-created objects.
 class MarkdownFeature
   include FactoryGirl::Syntax::Methods
 

spec/features/task_lists_spec.rb

+require 'spec_helper'
+
+feature 'Task Lists' do
+  include Warden::Test::Helpers
+
+  let(:project) { create(:project) }
+  let(:user)    { create(:user) }
+  let(:user2)   { create(:user) }
+
+  let(:markdown) do
+    <<-MARKDOWN.strip_heredoc
+    This is a task list:
+
+    - [ ] Incomplete entry 1
+    - [x] Complete entry 1
+    - [ ] Incomplete entry 2
+    - [x] Complete entry 2
+    - [ ] Incomplete entry 3
+    - [ ] Incomplete entry 4
+    MARKDOWN
+  end
+
+  before do
+    Warden.test_mode!
+
+    project.team << [user, :master]
+    project.team << [user2, :guest]
+
+    login_as(user)
+  end
+
+  def visit_issue(project, issue)
+    visit namespace_project_issue_path(project.namespace, project, issue)
+  end
+
+  describe 'for Issues' do
+    let!(:issue) { create(:issue, description: markdown, author: user, project: project) }
+
+    it 'renders' do
+      visit_issue(project, issue)
+
+      expect(page).to have_selector('ul.task-list',      count: 1)
+      expect(page).to have_selector('li.task-list-item', count: 6)
+      expect(page).to have_selector('ul input[checked]', count: 2)
+    end
+
+    it 'contains the required selectors' do
+      visit_issue(project, issue)
+
+      container = '.issue-details .description.js-task-list-container'
+
+      expect(page).to have_selector(container)
+      expect(page).to have_selector("#{container} .wiki .task-list .task-list-item .task-list-item-checkbox")
+      expect(page).to have_selector("#{container} .js-task-list-field")
+      expect(page).to have_selector('form.js-issue-update')
+      expect(page).to have_selector('a.btn-close')
+    end
+
+    it 'is only editable by author' do
+      visit_issue(project, issue)
+      expect(page).to have_selector('.js-task-list-container')
+
+      logout(:user)
+
+      login_as(user2)
+      visit current_path
+      expect(page).not_to have_selector('.js-task-list-container')
+    end
+
+    it 'provides a summary on Issues#index' do
+      visit namespace_project_issues_path(project.namespace, project)
+      expect(page).to have_content("6 tasks (2 completed, 4 remaining)")
+    end
+  end
+
+  describe 'for Notes' do
+    let!(:issue) { create(:issue, author: user, project: project) }
+    let!(:note)  { create(:note, note: markdown, noteable: issue, author: user) }
+
+    it 'renders for note body' do
+      visit_issue(project, issue)
+
+      expect(page).to have_selector('.note ul.task-list',      count: 1)
+      expect(page).to have_selector('.note li.task-list-item', count: 6)
+      expect(page).to have_selector('.note ul input[checked]', count: 2)
+    end
+
+    it 'contains the required selectors' do
+      visit_issue(project, issue)
+
+      expect(page).to have_selector('.note .js-task-list-container')
+      expect(page).to have_selector('.note .js-task-list-container .task-list .task-list-item .task-list-item-checkbox')
+      expect(page).to have_selector('.note .js-task-list-container .js-task-list-field')
+    end
+
+    it 'is only editable by author' do
+      visit_issue(project, issue)
+      expect(page).to have_selector('.js-task-list-container')
+
+      logout(:user)
+
+      login_as(user2)
+      visit current_path
+      expect(page).not_to have_selector('.js-task-list-container')
+    end
+  end
+
+  describe 'for Merge Requests' do
+    def visit_merge_request(project, merge)
+      visit namespace_project_merge_request_path(project.namespace, project, merge)
+    end
+
+    let!(:merge) { create(:merge_request, :simple, description: markdown, author: user, source_project: project) }
+
+    it 'renders for description' do
+      visit_merge_request(project, merge)
+
+      expect(page).to have_selector('ul.task-list',      count: 1)
+      expect(page).to have_selector('li.task-list-item', count: 6)
+      expect(page).to have_selector('ul input[checked]', count: 2)
+    end
+
+    it 'contains the required selectors' do
+      visit_merge_request(project, merge)
+
+      container = '.merge-request-details .description.js-task-list-container'
+
+      expect(page).to have_selector(container)
+      expect(page).to have_selector("#{container} .wiki .task-list .task-list-item .task-list-item-checkbox")
+      expect(page).to have_selector("#{container} .js-task-list-field")
+      expect(page).to have_selector('form.js-merge-request-update')
+      expect(page).to have_selector('a.btn-close')
+    end
+
+    it 'is only editable by author' do
+      visit_merge_request(project, merge)
+      expect(page).to have_selector('.js-task-list-container')
+
+      logout(:user)
+
+      login_as(user2)
+      visit current_path
+      expect(page).not_to have_selector('.js-task-list-container')
+    end
+
+    it 'provides a summary on MergeRequests#index' do
+      visit namespace_project_merge_requests_path(project.namespace, project)
+      expect(page).to have_content("6 tasks (2 completed, 4 remaining)")
+    end
+  end
+end

spec/fixtures/markdown.md.erb

@@ -184,3 +184,13 @@ References should be parseable even inside _!<%= merge_request.iid %>_ emphasis.
 - Label by name in quotes: ~"<%= label.name %>"
 - Ignored in code: `~<%= simple_label.name %>`
 - Ignored in links: [Link to ~<%= simple_label.id %>](#label-link)
+
+### Task Lists
+
+- [ ] Incomplete task 1
+- [x] Complete task 1
+- [ ] Incomplete task 2
+  - [ ] Incomplete sub-task 1
+  - [ ] Incomplete sub-task 2
+  - [x] Complete sub-task 1
+- [X] Complete task 2

spec/helpers/gitlab_markdown_helper_spec.rb

@@ -43,115 +43,6 @@ describe GitlabMarkdownHelper do
         expect(gfm(actual)).to match(expected)
       end
     end
-
-    context 'parse_tasks: true' do
-      before(:all) do
-        @source_text_asterisk = <<-EOT.strip_heredoc
-          * [ ] valid unchecked task
-          * [x] valid lowercase checked task
-          * [X] valid uppercase checked task
-              * [ ] valid unchecked nested task
-              * [x] valid checked nested task
-
-          [ ] not an unchecked task - no list item
-          [x] not a checked task - no list item
-
-          * [  ] not an unchecked task - too many spaces
-          * [x ] not a checked task - too many spaces
-          * [] not an unchecked task - no spaces
-          * Not a task [ ] - not at beginning
-        EOT
-
-        @source_text_dash = <<-EOT.strip_heredoc
-          - [ ] valid unchecked task
-          - [x] valid lowercase checked task
-          - [X] valid uppercase checked task
-              - [ ] valid unchecked nested task
-              - [x] valid checked nested task
-        EOT
-      end
-
-      it 'should render checkboxes at beginning of asterisk list items' do
-        rendered_text = markdown(@source_text_asterisk, parse_tasks: true)
-
-        expect(rendered_text).to match(/<input.*checkbox.*valid unchecked task/)
-        expect(rendered_text).to match(
-          /<input.*checkbox.*valid lowercase checked task/
-        )
-        expect(rendered_text).to match(
-          /<input.*checkbox.*valid uppercase checked task/
-        )
-      end
-
-      it 'should render checkboxes at beginning of dash list items' do
-        rendered_text = markdown(@source_text_dash, parse_tasks: true)
-
-        expect(rendered_text).to match(/<input.*checkbox.*valid unchecked task/)
-        expect(rendered_text).to match(
-          /<input.*checkbox.*valid lowercase checked task/
-        )
-        expect(rendered_text).to match(
-          /<input.*checkbox.*valid uppercase checked task/
-        )
-      end
-
-      it 'should render checkboxes for nested tasks' do
-        rendered_text = markdown(@source_text_asterisk, parse_tasks: true)
-
-        expect(rendered_text).to match(
-          /<input.*checkbox.*valid unchecked nested task/
-        )
-        expect(rendered_text).to match(
-          /<input.*checkbox.*valid checked nested task/
-        )
-      end
-
-      it 'should not be confused by whitespace before bullets' do
-        rendered_text_asterisk = markdown(@source_text_asterisk, parse_tasks: true)
-        rendered_text_dash = markdown(@source_text_dash, parse_tasks: true)
-
-        expect(rendered_text_asterisk).to match(
-          /<input.*checkbox.*valid unchecked nested task/
-        )
-        expect(rendered_text_asterisk).to match(
-          /<input.*checkbox.*valid checked nested task/
-        )
-        expect(rendered_text_dash).to match(
-          /<input.*checkbox.*valid unchecked nested task/
-        )
-        expect(rendered_text_dash).to match(
-          /<input.*checkbox.*valid checked nested task/
-        )
-      end
-
-      it 'should not render checkboxes outside of list items' do
-        rendered_text = markdown(@source_text_asterisk, parse_tasks: true)
-
-        expect(rendered_text).not_to match(
-          /<input.*checkbox.*not an unchecked task - no list item/
-        )
-        expect(rendered_text).not_to match(
-          /<input.*checkbox.*not a checked task - no list item/
-        )
-      end
-
-      it 'should not render checkboxes with invalid formatting' do
-        rendered_text = markdown(@source_text_asterisk, parse_tasks: true)
-
-        expect(rendered_text).not_to match(
-          /<input.*checkbox.*not an unchecked task - too many spaces/
-        )
-        expect(rendered_text).not_to match(
-          /<input.*checkbox.*not a checked task - too many spaces/
-        )
-        expect(rendered_text).not_to match(
-          /<input.*checkbox.*not an unchecked task - no spaces/
-        )
-        expect(rendered_text).not_to match(
-          /Not a task.*<input.*checkbox.*not at beginning/
-        )
-      end
-    end
   end
 
   describe '#link_to_gfm' do

spec/javascripts/issue_spec.js.coffee

+#= require jquery
+#= require jasmine-fixture
+#= require issue
+
+describe 'Issue', ->
+  describe 'task lists', ->
+    selectors = {
+      container: '.issue-details .description.js-task-list-container'
+      item:      '.wiki ul.task-list li.task-list-item input.task-list-item-checkbox[type=checkbox] {Task List Item}'
+      textarea:  '.wiki textarea.js-task-list-field{- [ ] Task List Item}'
+      form:      'form.js-issue-update[action="/foo"]'
+      close:     'a.btn-close'
+    }
+
+    beforeEach ->
+      $container = affix(selectors.container)
+
+      # # These two elements are siblings inside the container
+      $container.find('.js-task-list-container').append(affix(selectors.item))
+      $container.find('.js-task-list-container').append(affix(selectors.textarea))
+
+      # Task lists don't get initialized unless this button exists. Not ideal.
+      $container.append(affix(selectors.close))
+
+      # This form is used to get the `update` URL. Not ideal.
+      $container.append(affix(selectors.form))
+
+      @issue = new Issue()
+
+    it 'submits an ajax request on tasklist:changed', ->
+      spyOn($, 'ajax').and.callFake (req) ->
+        expect(req.type).toBe('PATCH')
+        expect(req.url).toBe('/foo')
+        expect(req.data.issue.description).not.toBe(null)
+
+      $('.js-task-list-field').trigger('tasklist:changed')

spec/javascripts/merge_request_spec.js.coffee

+#= require jquery
+#= require jasmine-fixture
+#= require merge_request
+
+describe 'MergeRequest', ->
+  describe 'task lists', ->
+    selectors = {
+      container: '.merge-request-details .description.js-task-list-container'
+      item:      '.wiki ul.task-list li.task-list-item input.task-list-item-checkbox[type=checkbox] {Task List Item}'
+      textarea:  '.wiki textarea.js-task-list-field{- [ ] Task List Item}'
+      form:      'form.js-merge-request-update[action="/foo"]'
+      close:     'a.btn-close'
+    }
+
+    beforeEach ->
+      $container = affix(selectors.container)
+
+      # # These two elements are siblings inside the container
+      $container.find('.js-task-list-container').append(affix(selectors.item))
+      $container.find('.js-task-list-container').append(affix(selectors.textarea))
+
+      # Task lists don't get initialized unless this button exists. Not ideal.
+      $container.append(affix(selectors.close))
+
+      # This form is used to get the `update` URL. Not ideal.
+      $container.append(affix(selectors.form))
+
+      @merge = new MergeRequest({})
+
+    it 'submits an ajax request on tasklist:changed', ->
+      spyOn($, 'ajax').and.callFake (req) ->
+        expect(req.type).toBe('PATCH')
+        expect(req.url).toBe('/foo')
+        expect(req.data.merge_request.description).not.toBe(null)
+
+      $('.js-task-list-field').trigger('tasklist:changed')

spec/javascripts/notes_spec.js.coffee

+#= require jquery
+#= require jasmine-fixture
+#= require notes
+
+window.gon = {}
+window.disableButtonIfEmptyField = -> null
+
+describe 'Notes', ->
+  describe 'task lists', ->
+    selectors = {
+      container: 'li.note .js-task-list-container'
+      item:      '.note-text ul.task-list li.task-list-item input.task-list-item-checkbox[type=checkbox] {Task List Item}'
+      textarea:  '.note-edit-form form textarea.js-task-list-field{- [ ] Task List Item}'
+    }
+
+    beforeEach ->
+      $container = affix(selectors.container)
+
+      # These two elements are siblings inside the container
+      $container.find('.js-task-list-container').append(affix(selectors.item))
+      $container.find('.js-task-list-container').append(affix(selectors.textarea))
+
+      @notes = new Notes()
+
+    it 'submits the form on tasklist:changed', ->
+      submitted = false
+      $('form').on 'submit', (e) -> submitted = true; e.preventDefault()
+
+      $('.js-task-list-field').trigger('tasklist:changed')
+      expect(submitted).toBe(true)

spec/javascripts/support/jasmine.yml

@@ -9,11 +9,6 @@
 # defaults to spec/javascripts
 spec_dir: spec/javascripts
 
-# list of file expressions to include as helpers into spec runner
-# relative path from spec_dir
-helpers:
-  - "helpers/**/*.{js.coffee,js,coffee}"
-
 # list of file expressions to include as specs into spec runner
 # relative path from spec_dir
 spec_files:

spec/support/taskable_shared_examples.rb

@@ -4,39 +4,29 @@
 #   subject { Issue or MergeRequest }
 shared_examples 'a Taskable' do
   before do
-    subject.description = <<EOT.gsub(/ {6}/, '')
+    subject.description = <<-EOT.strip_heredoc
       * [ ] Task 1
       * [x] Task 2
       * [x] Task 3
       * [ ] Task 4
       * [ ] Task 5
-EOT
-  end
-
-  it 'updates the Nth task correctly' do
-    subject.update_nth_task(1, true)
-    expect(subject.description).to match(/\[x\] Task 1/)
-
-    subject.update_nth_task(2, true)
-    expect(subject.description).to match('\[x\] Task 2')
-
-    subject.update_nth_task(3, false)
-    expect(subject.description).to match('\[ \] Task 3')
-
-    subject.update_nth_task(4, false)
-    expect(subject.description).to match('\[ \] Task 4')
+    EOT
   end
 
   it 'returns the correct task status' do
     expect(subject.task_status).to match('5 tasks')
-    expect(subject.task_status).to match('2 done')
-    expect(subject.task_status).to match('3 unfinished')
+    expect(subject.task_status).to match('2 completed')
+    expect(subject.task_status).to match('3 remaining')
   end
 
-  it 'knows if it has tasks' do
-    expect(subject.tasks?).to be_truthy
+  describe '#tasks?' do
+    it 'returns true when object has tasks' do
+      expect(subject.tasks?).to eq true
+    end
 
-    subject.description = 'Now I have no tasks'
-    expect(subject.tasks?).to be_falsey
+    it 'returns false when object has no tasks' do
+      subject.description = 'Now I have no tasks'
+      expect(subject.tasks?).to eq false
+    end
   end
 end

vendor/assets/javascripts/jasmine-fixture.js

-/* jasmine-fixture - 1.2.2
+/* jasmine-fixture - 1.3.1
  * Makes injecting HTML snippets into the DOM easy & clean!
  * https://github.com/searls/jasmine-fixture
  */
@@ -8,7 +8,7 @@
 
   (function($) {
     var ewwSideEffects, jasmineFixture, originalAffix, originalJasmineDotFixture, originalJasmineFixture, root, _, _ref;
-    root = this;
+    root = (1, eval)('this');
     originalJasmineFixture = root.jasmineFixture;
     originalJasmineDotFixture = (_ref = root.jasmine) != null ? _ref.fixture : void 0;
     originalAffix = root.affix;
@@ -33,7 +33,7 @@
       create = function(selectorOptions, attach) {
         var $top;
         $top = null;
-        _(selectorOptions.split(/[ ](?=[^\]]*?(?:\[|$))/)).inject(function($parent, elementSelector) {
+        _(selectorOptions.split(/[ ](?![^\{]*\})(?=[^\]]*?(?:\[|$))/)).inject(function($parent, elementSelector) {
           var $el;
           if (elementSelector === ">") {
             return $parent;