Merge branch 'issue-boards' into 'master'

Issue boards

- Issue: #17907
- Issue backend: #20335
- Backend MR: !5548
- Frontend MR: !5554
- Documentation !5713

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [X] ~~[Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)~~
- [X] ~~API support added~~
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5548

CHANGELOG

@@ -9,6 +9,7 @@ v 8.11.0 (unreleased)
   - Fix the title of the toggle dropdown button. !5515 (herminiotorres)
   - Rename `markdown_preview` routes to `preview_markdown`. (Christopher Bartz)
   - Update to Ruby 2.3.1. !4948
+  - Add Issues Board !5548
   - Improve diff performance by eliminating redundant checks for text blobs
   - Ensure that branch names containing escapable characters (e.g. %20) aren't unescaped indiscriminately. !5770 (ewiltshi)
   - Convert switch icon into icon font (ClemMakesApps)

Gemfile

@@ -314,6 +314,7 @@ end
 group :test do
   gem 'shoulda-matchers', '~> 2.8.0', require: false
   gem 'email_spec', '~> 1.6.0'
+  gem 'json-schema', '~> 2.6.2'
   gem 'webmock', '~> 1.21.0'
   gem 'test_after_commit', '~> 0.4.2'
   gem 'sham_rack', '~> 1.3.6'

Gemfile.lock

@@ -356,6 +356,8 @@ GEM
     jquery-ui-rails (5.0.5)
       railties (>= 3.2.16)
     json (1.8.3)
+    json-schema (2.6.2)
+      addressable (~> 2.3.8)
     jwt (1.5.4)
     kaminari (0.17.0)
       actionpack (>= 3.0.0)
@@ -873,6 +875,7 @@ DEPENDENCIES
   jquery-rails (~> 4.1.0)
   jquery-turbolinks (~> 2.1.0)
   jquery-ui-rails (~> 5.0.0)
+  json-schema (~> 2.6.2)
   jwt
   kaminari (~> 0.17.0)
   knapsack (~> 1.11.0)

app/assets/javascripts/boards/boards_bundle.js.es6

+//= require vue
+//= require vue-resource
+//= require Sortable
+//= require_tree ./models
+//= require_tree ./stores
+//= require_tree ./services
+//= require_tree ./mixins
+//= require ./components/board
+//= require ./components/new_list_dropdown
+//= require ./vue_resource_interceptor
+
+$(() => {
+  const $boardApp = document.getElementById('board-app'),
+        Store = gl.issueBoards.BoardsStore;
+
+  window.gl = window.gl || {};
+
+  if (gl.IssueBoardsApp) {
+    gl.IssueBoardsApp.$destroy(true);
+  }
+
+  gl.IssueBoardsApp = new Vue({
+    el: $boardApp,
+    components: {
+      'board': gl.issueBoards.Board
+    },
+    data: {
+      state: Store.state,
+      loading: true,
+      endpoint: $boardApp.dataset.endpoint,
+      disabled: $boardApp.dataset.disabled === 'true',
+      issueLinkBase: $boardApp.dataset.issueLinkBase
+    },
+    init: Store.create.bind(Store),
+    created () {
+      gl.boardService = new BoardService(this.endpoint);
+    },
+    ready () {
+      Store.disabled = this.disabled;
+      gl.boardService.all()
+        .then((resp) => {          
+          resp.json().forEach((board) => {
+            const list = Store.addList(board);
+
+            if (list.type === 'done') {
+              list.position = Infinity;
+            } else if (list.type === 'backlog') {
+              list.position = -1;
+            }
+          });
+
+          Store.addBlankState();
+          this.loading = false;
+        });
+    }
+  });
+});

app/assets/javascripts/boards/components/board.js.es6

+//= require ./board_blank_state
+//= require ./board_delete
+//= require ./board_list
+
+(() => {
+  const Store = gl.issueBoards.BoardsStore;
+
+  window.gl = window.gl || {};
+  window.gl.issueBoards = window.gl.issueBoards || {};
+
+  gl.issueBoards.Board = Vue.extend({
+    components: {
+      'board-list': gl.issueBoards.BoardList,
+      'board-delete': gl.issueBoards.BoardDelete,
+      'board-blank-state': gl.issueBoards.BoardBlankState
+    },
+    props: {
+      list: Object,
+      disabled: Boolean,
+      issueLinkBase: String
+    },
+    data () {
+      return {
+        query: '',
+        filters: Store.state.filters
+      };
+    },
+    watch: {
+      query () {
+        this.list.filters = this.getFilterData();
+        this.list.getIssues(true);
+      },
+      filters: {
+        handler () {
+          this.list.page = 1;
+          this.list.getIssues(true);
+        },
+        deep: true
+      }
+    },
+    methods: {
+      getFilterData () {
+        const filters = this.filters;
+        let queryData = { search: this.query };
+
+        Object.keys(filters).forEach((key) => { queryData[key] = filters[key]; });
+
+        return queryData;
+      }
+    },
+    ready () {
+      const options = gl.issueBoards.getBoardSortableDefaultOptions({
+        disabled: this.disabled,
+        group: 'boards',
+        draggable: '.is-draggable',
+        handle: '.js-board-handle',
+        onEnd: (e) => {
+          document.body.classList.remove('is-dragging');
+
+          if (e.newIndex !== undefined && e.oldIndex !== e.newIndex) {
+            const order = this.sortable.toArray(),
+                  $board = this.$parent.$refs.board[e.oldIndex + 1],
+                  list = $board.list;
+
+            $board.$destroy(true);
+
+            this.$nextTick(() => {
+              Store.state.lists.splice(e.newIndex, 0, list);
+              Store.moveList(list, order);
+            });
+          }
+        }
+      });
+
+      if (bp.getBreakpointSize() === 'xs') {
+        options.handle = '.js-board-drag-handle';
+      }
+
+      this.sortable = Sortable.create(this.$el.parentNode, options);
+    },
+    beforeDestroy () {
+      Store.state.lists.$remove(this.list);
+    }
+  });
+})();

app/assets/javascripts/boards/components/board_blank_state.js.es6

+(() => {
+  const Store = gl.issueBoards.BoardsStore;
+
+  window.gl = window.gl || {};
+  window.gl.issueBoards = window.gl.issueBoards || {};
+
+  gl.issueBoards.BoardBlankState = Vue.extend({
+    data () {
+      return {
+        predefinedLabels: [
+          new ListLabel({ title: 'Development', color: '#5CB85C' }),
+          new ListLabel({ title: 'Testing', color: '#F0AD4E' }),
+          new ListLabel({ title: 'Production', color: '#FF5F00' }),
+          new ListLabel({ title: 'Ready', color: '#FF0000' })
+        ]
+      }
+    },
+    methods: {
+      addDefaultLists () {
+        this.clearBlankState();
+
+        this.predefinedLabels.forEach((label, i) => {
+          Store.addList({
+            title: label.title,
+            position: i,
+            list_type: 'label',
+            label: {
+              title: label.title,
+              color: label.color
+            }
+          });
+        });
+
+        // Save the labels
+        gl.boardService.generateDefaultLists()
+          .then((resp) => {
+            resp.json().forEach((listObj) => {
+              const list = Store.findList('title', listObj.title);
+
+              list.id = listObj.id;
+              list.label.id = listObj.label.id;
+              list.getIssues();
+            });
+          });
+      },
+      clearBlankState: Store.removeBlankState.bind(Store)
+    }
+  });
+})();

app/assets/javascripts/boards/components/board_card.js.es6

+(() => {
+  const Store = gl.issueBoards.BoardsStore;
+
+  window.gl = window.gl || {};
+  window.gl.issueBoards = window.gl.issueBoards || {};
+
+  gl.issueBoards.BoardCard = Vue.extend({
+    props: {
+      list: Object,
+      issue: Object,
+      issueLinkBase: String,
+      disabled: Boolean,
+      index: Number
+    },
+    methods: {
+      filterByLabel (label, e) {
+        let labelToggleText = label.title;
+        const labelIndex = Store.state.filters['label_name'].indexOf(label.title);
+        $(e.target).tooltip('hide');
+
+        if (labelIndex === -1) {
+          Store.state.filters['label_name'].push(label.title);
+          $('.labels-filter').prepend(`<input type="hidden" name="label_name[]" value="${label.title}" />`);
+        } else {
+          Store.state.filters['label_name'].splice(labelIndex, 1);
+          labelToggleText = Store.state.filters['label_name'][0];
+          $(`.labels-filter input[name="label_name[]"][value="${label.title}"]`).remove();
+        }
+
+        const selectedLabels = Store.state.filters['label_name'];
+        if (selectedLabels.length === 0) {
+          labelToggleText = 'Label';
+        } else if (selectedLabels.length > 1) {
+          labelToggleText = `${selectedLabels[0]} + ${selectedLabels.length - 1} more`;
+        }
+
+        $('.labels-filter .dropdown-toggle-text').text(labelToggleText);
+
+        Store.updateFiltersUrl();
+      }
+    }
+  });
+})();

app/assets/javascripts/boards/components/board_delete.js.es6

+(() => {
+  window.gl = window.gl || {};
+  window.gl.issueBoards = window.gl.issueBoards || {};
+
+  gl.issueBoards.BoardDelete = Vue.extend({
+    props: {
+      list: Object
+    },
+    methods: {
+      deleteBoard () {
+        $(this.$el).tooltip('hide');
+
+        if (confirm('Are you sure you want to delete this list?')) {
+          this.list.destroy();
+        }
+      }
+    }
+  });
+})();

app/assets/javascripts/boards/components/board_list.js.es6

+//= require ./board_card
+
+(() => {
+  const Store = gl.issueBoards.BoardsStore;
+
+  window.gl = window.gl || {};
+  window.gl.issueBoards = window.gl.issueBoards || {};
+
+  gl.issueBoards.BoardList = Vue.extend({
+    components: {
+      'board-card': gl.issueBoards.BoardCard
+    },
+    props: {
+      disabled: Boolean,
+      list: Object,
+      issues: Array,
+      loading: Boolean,
+      issueLinkBase: String
+    },
+    data () {
+      return {
+        scrollOffset: 250,
+        filters: Store.state.filters
+      };
+    },
+    watch: {
+      filters: {
+        handler () {
+          this.list.loadingMore = false;
+          this.$els.list.scrollTop = 0;
+        },
+        deep: true
+      }
+    },
+    methods: {
+      listHeight () {
+        return this.$els.list.getBoundingClientRect().height;
+      },
+      scrollHeight () {
+        return this.$els.list.scrollHeight;
+      },
+      scrollTop () {
+        return this.$els.list.scrollTop + this.listHeight();
+      },
+      loadNextPage () {
+        const getIssues = this.list.nextPage();
+
+        if (getIssues) {
+          this.list.loadingMore = true;
+          getIssues.then(() => {
+            this.list.loadingMore = false;
+          });
+        }
+      },
+    },
+    ready () {
+      const options = gl.issueBoards.getBoardSortableDefaultOptions({
+        group: 'issues',
+        sort: false,
+        disabled: this.disabled,
+        onStart: (e) => {
+          const card = this.$refs.issue[e.oldIndex];
+
+          Store.moving.issue = card.issue;
+          Store.moving.list = card.list;
+        },
+        onAdd: (e) => {
+          gl.issueBoards.BoardsStore.moveIssueToList(Store.moving.list, this.list, Store.moving.issue);
+        },
+        onRemove: (e) => {
+          this.$refs.issue[e.oldIndex].$destroy(true);
+        }
+      });
+
+      if (bp.getBreakpointSize() === 'xs') {
+        options.handle = '.js-card-drag-handle';
+      }
+
+      this.sortable = Sortable.create(this.$els.list, options);
+
+      // Scroll event on list to load more
+      this.$els.list.onscroll = () => {
+        if ((this.scrollTop() > this.scrollHeight() - this.scrollOffset) && !this.list.loadingMore) {
+          this.loadNextPage();
+        }
+      };
+    }
+  });
+})();

app/assets/javascripts/boards/components/new_list_dropdown.js.es6

+$(() => {
+  const Store = gl.issueBoards.BoardsStore;
+
+  $('.js-new-board-list').each(function () {
+    const $this = $(this);
+
+    new gl.CreateLabelDropdown($this.closest('.dropdown').find('.dropdown-new-label'), $this.data('project-id'));
+
+    $this.glDropdown({
+      data(term, callback) {
+        $.get($this.attr('data-labels'))
+          .then((resp) => {
+            callback(resp);
+          });
+      },
+      renderRow (label) {
+        const active = Store.findList('title', label.title),
+              $li = $('<li />'),
+              $a = $('<a />', {
+                class: (active ? `is-active js-board-list-${active.id}` : ''),
+                text: label.title,
+                href: '#'
+              }),
+              $labelColor = $('<span />', {
+                class: 'dropdown-label-box',
+                style: `background-color: ${label.color}`
+              });
+
+        return $li.append($a.prepend($labelColor));
+      },
+			search: {
+				fields: ['title']
+			},
+			filterable: true,
+      selectable: true,
+      clicked (label, $el, e) {
+        e.preventDefault();
+
+        if (!Store.findList('title', label.title)) {
+          Store.new({
+            title: label.title,
+            position: Store.state.lists.length - 2,
+            list_type: 'label',
+            label: {
+              id: label.id,
+              title: label.title,
+              color: label.color
+            }
+          });
+        }
+      }
+    });
+  });
+});

app/assets/javascripts/boards/mixins/sortable_default_options.js.es6

+((w) => {
+  window.gl = window.gl || {};
+  window.gl.issueBoards = window.gl.issueBoards || {};
+
+  gl.issueBoards.getBoardSortableDefaultOptions = (obj) => {
+    let defaultSortOptions = {
+      forceFallback: true,
+      fallbackClass: 'is-dragging',
+      fallbackOnBody: true,
+      ghostClass: 'is-ghost',
+      filter: '.has-tooltip',
+      scrollSensitivity: 100,
+      scrollSpeed: 20,
+      onStart () {
+        document.body.classList.add('is-dragging');
+      },
+      onEnd () {
+        document.body.classList.remove('is-dragging');
+      }
+    }
+
+    Object.keys(obj).forEach((key) => { defaultSortOptions[key] = obj[key]; });
+    return defaultSortOptions;
+  };
+})(window);

app/assets/javascripts/boards/models/issue.js.es6

+class ListIssue {
+  constructor (obj) {
+    this.id = obj.iid;
+    this.title = obj.title;
+    this.confidential = obj.confidential;
+    this.labels = [];
+
+    if (obj.assignee) {
+      this.assignee = new ListUser(obj.assignee);
+    }
+
+    obj.labels.forEach((label) => {
+      this.labels.push(new ListLabel(label));
+    });
+
+    this.priority = this.labels.reduce((max, label) => {
+      return (label.priority < max) ? label.priority : max;
+    }, Infinity);
+  }
+
+  addLabel (label) {
+    if (!this.findLabel(label)) {
+      this.labels.push(new ListLabel(label));
+    }
+  }
+
+  findLabel (findLabel) {
+    return this.labels.filter( label => label.title === findLabel.title )[0];
+  }
+
+  removeLabel (removeLabel) {
+    if (removeLabel) {
+      this.labels = this.labels.filter( label => removeLabel.title !== label.title );
+    }
+  }
+
+  removeLabels (labels) {
+    labels.forEach(this.removeLabel.bind(this));
+  }
+
+  getLists () {
+    return gl.issueBoards.BoardsStore.state.lists.filter( list => list.findIssue(this.id) );
+  }
+}

app/assets/javascripts/boards/models/label.js.es6

+class ListLabel {
+  constructor (obj) {
+    this.id = obj.id;
+    this.title = obj.title;
+    this.color = obj.color;
+    this.description = obj.description;
+    this.priority = (obj.priority !== null) ? obj.priority : Infinity;
+  }
+}

app/assets/javascripts/boards/models/list.js.es6

+class List {
+  constructor (obj) {
+    this.id = obj.id;
+    this._uid = this.guid();
+    this.position = obj.position;
+    this.title = obj.title;
+    this.type = obj.list_type;
+    this.preset = ['backlog', 'done', 'blank'].indexOf(this.type) > -1;
+    this.filters = gl.issueBoards.BoardsStore.state.filters;
+    this.page = 1;
+    this.loading = true;
+    this.loadingMore = false;
+    this.issues = [];
+
+    if (obj.label) {
+      this.label = new ListLabel(obj.label);
+    }
+
+    if (this.type !== 'blank' && this.id) {
+      this.getIssues();
+    }
+  }
+
+  guid() {
+    const s4 = () => Math.floor((1 + Math.random()) * 0x10000).toString(16).substring(1);
+    return `${s4()}${s4()}-${s4()}-${s4()}-${s4()}-${s4()}${s4()}${s4()}`;
+  }
+
+  save () {
+    return gl.boardService.createList(this.label.id)
+      .then((resp) => {
+        const data = resp.json();
+
+        this.id = data.id;
+        this.type = data.list_type;
+        this.position = data.position;
+
+        return this.getIssues();
+      });
+  }
+
+  destroy () {
+    gl.issueBoards.BoardsStore.state.lists.$remove(this);
+    gl.issueBoards.BoardsStore.updateNewListDropdown(this.id);
+
+    gl.boardService.destroyList(this.id);
+  }
+
+  update () {
+    gl.boardService.updateList(this.id, this.position);
+  }
+
+  nextPage () {
+    if (Math.floor(this.issues.length / 20) === this.page) {
+      this.page++;
+
+      return this.getIssues(false);
+    }
+  }
+
+  canSearch () {
+    return this.type === 'backlog';
+  }
+
+  getIssues (emptyIssues = true) {
+    const filters = this.filters;
+    let data = { page: this.page };
+
+    Object.keys(filters).forEach((key) => { data[key] = filters[key]; });
+
+    if (this.label) {
+      data.label_name = data.label_name.filter( label => label !== this.label.title );
+    }
+
+    if (emptyIssues) {
+      this.loading = true;
+    }
+
+    return gl.boardService.getIssuesForList(this.id, data)
+      .then((resp) => {
+        const data = resp.json();
+        this.loading = false;
+
+        if (emptyIssues) {
+          this.issues = [];
+        }
+
+        this.createIssues(data);
+      });
+  }
+
+  createIssues (data) {
+    data.forEach((issueObj) => {
+      this.addIssue(new ListIssue(issueObj));
+    });
+  }
+
+  addIssue (issue, listFrom) {
+    this.issues.push(issue);
+
+    if (this.label) {
+      issue.addLabel(this.label);
+    }
+
+    if (listFrom) {
+      gl.boardService.moveIssue(issue.id, listFrom.id, this.id);
+    }
+  }
+
+  findIssue (id) {
+    return this.issues.filter( issue => issue.id === id )[0];
+  }
+
+  removeIssue (removeIssue) {
+    this.issues = this.issues.filter((issue) => {
+      const matchesRemove = removeIssue.id === issue.id;
+
+      if (matchesRemove) {
+        issue.removeLabel(this.label);
+      }
+
+      return !matchesRemove;
+    });
+  }
+}

app/assets/javascripts/boards/models/user.js.es6

+class ListUser {
+  constructor (user) {
+    this.id = user.id;
+    this.name = user.name;
+    this.username = user.username;
+    this.avatar = user.avatar_url;
+  }
+}

app/assets/javascripts/boards/services/board_service.js.es6

+class BoardService {
+  constructor (root) {
+    Vue.http.options.root = root;
+
+    this.lists = Vue.resource(`${root}/lists{/id}`, {}, {
+      generate: {
+        method: 'POST',
+        url: `${root}/lists/generate.json`
+      }
+    });
+    this.issue = Vue.resource(`${root}/issues{/id}`, {});
+    this.issues = Vue.resource(`${root}/lists{/id}/issues`, {});
+
+    Vue.http.interceptors.push((request, next) => {
+      request.headers['X-CSRF-Token'] = $.rails.csrfToken();
+      next();
+    });
+  }
+
+  all () {
+    return this.lists.get();
+  }
+
+  generateDefaultLists () {
+    return this.lists.generate({});
+  }
+
+  createList (label_id) {
+    return this.lists.save({}, {
+      list: {
+        label_id
+      }
+    });
+  }
+
+  updateList (id, position) {
+    return this.lists.update({ id }, {
+      list: {
+        position
+      }
+    });
+  }
+
+  destroyList (id) {
+    return this.lists.delete({ id });
+  }
+
+  getIssuesForList (id, filter = {}) {
+    let data = { id };
+    Object.keys(filter).forEach((key) => { data[key] = filter[key]; });
+
+    return this.issues.get(data);
+  }
+
+  moveIssue (id, from_list_id, to_list_id) {
+    return this.issue.update({ id }, {
+      from_list_id,
+      to_list_id
+    });
+  }
+};

app/assets/javascripts/boards/stores/boards_store.js.es6

+(() => {
+  window.gl = window.gl || {};
+  window.gl.issueBoards = window.gl.issueBoards || {};
+
+  gl.issueBoards.BoardsStore = {
+    disabled: false,
+    state: {},
+    moving: {
+      issue: {},
+      list: {}
+    },
+    create () {
+      this.state.lists = [];
+      this.state.filters = {
+        author_id: gl.utils.getParameterValues('author_id')[0],
+        assignee_id: gl.utils.getParameterValues('assignee_id')[0],
+        milestone_title: gl.utils.getParameterValues('milestone_title')[0],
+        label_name: gl.utils.getParameterValues('label_name[]')
+      };
+    },
+    addList (listObj) {
+      const list = new List(listObj);
+      this.state.lists.push(list);
+
+      return list;
+    },
+    new (listObj) {
+      const list = this.addList(listObj),
+            backlogList = this.findList('type', 'backlog', 'backlog');
+
+      list
+        .save()
+        .then(() => {
+          // Remove any new issues from the backlog
+          // as they will be visible in the new list
+          list.issues.forEach(backlogList.removeIssue.bind(backlogList));
+        });
+      this.removeBlankState();
+    },
+    updateNewListDropdown (listId) {
+      $(`.js-board-list-${listId}`).removeClass('is-active');
+    },
+    shouldAddBlankState () {
+      // Decide whether to add the blank state
+      return !(this.state.lists.filter( list => list.type !== 'backlog' && list.type !== 'done' )[0]);
+    },
+    addBlankState () {
+      if (!this.shouldAddBlankState() || this.welcomeIsHidden() || this.disabled) return;
+
+      this.addList({
+        id: 'blank',
+        list_type: 'blank',
+        title: 'Welcome to your Issue Board!',
+        position: 0
+      });
+    },
+    removeBlankState () {
+      this.removeList('blank');
+
+      $.cookie('issue_board_welcome_hidden', 'true', {
+        expires: 365 * 10
+      });
+    },
+    welcomeIsHidden () {
+      return $.cookie('issue_board_welcome_hidden') === 'true';
+    },
+    removeList (id, type = 'blank') {
+      const list = this.findList('id', id, type);
+
+      if (!list) return;
+
+      this.state.lists = this.state.lists.filter( list => list.id !== id );
+    },
+    moveList (listFrom, orderLists) {
+      orderLists.forEach((id, i) => {
+        const list = this.findList('id', parseInt(id));
+
+        list.position = i;
+      });
+      listFrom.update();
+    },
+    moveIssueToList (listFrom, listTo, issue) {
+      const issueTo = listTo.findIssue(issue.id),
+            issueLists = issue.getLists(),
+            listLabels = issueLists.map( listIssue => listIssue.label );
+
+      // Add to new lists issues if it doesn't already exist
+      if (!issueTo) {
+        listTo.addIssue(issue, listFrom);
+      }
+
+      if (listTo.type === 'done' && listFrom.type !== 'backlog') {
+        issueLists.forEach((list) => {
+          list.removeIssue(issue);
+        })
+        issue.removeLabels(listLabels);
+      } else {
+        listFrom.removeIssue(issue);
+      }
+    },
+    findList (key, val, type = 'label') {
+      return this.state.lists.filter((list) => {
+        const byType = type ? list['type'] === type : true;
+
+        return list[key] === val && byType;
+      })[0];
+    },
+    updateFiltersUrl () {
+      history.pushState(null, null, `?${$.param(this.state.filters)}`);
+    }
+  };
+})();

app/assets/javascripts/boards/test_utils/simulate_drag.js

+(function () {
+	'use strict';
+
+	function simulateEvent(el, type, options) {
+		var event;
+		if (!el) return;
+		var ownerDocument = el.ownerDocument;
+
+		options = options || {};
+
+		if (/^mouse/.test(type)) {
+			event = ownerDocument.createEvent('MouseEvents');
+			event.initMouseEvent(type, true, true, ownerDocument.defaultView,
+				options.button, options.screenX, options.screenY, options.clientX, options.clientY,
+				options.ctrlKey, options.altKey, options.shiftKey, options.metaKey, options.button, el);
+		} else {
+			event = ownerDocument.createEvent('CustomEvent');
+
+			event.initCustomEvent(type, true, true, ownerDocument.defaultView,
+				options.button, options.screenX, options.screenY, options.clientX, options.clientY,
+				options.ctrlKey, options.altKey, options.shiftKey, options.metaKey, options.button, el);
+
+			event.dataTransfer = {
+				data: {},
+
+				setData: function (type, val) {
+					this.data[type] = val;
+				},
+
+				getData: function (type) {
+					return this.data[type];
+				}
+			};
+		}
+
+		if (el.dispatchEvent) {
+			el.dispatchEvent(event);
+		} else if (el.fireEvent) {
+			el.fireEvent('on' + type, event);
+		}
+
+		return event;
+	}
+
+	function getTraget(target) {
+		var el = typeof target.el === 'string' ? document.getElementById(target.el.substr(1)) : target.el;
+		var children = el.children;
+
+		return (
+			children[target.index] ||
+			children[target.index === 'first' ? 0 : -1] ||
+			children[target.index === 'last' ? children.length - 1 : -1]
+		);
+	}
+
+	function getRect(el) {
+		var rect = el.getBoundingClientRect();
+		var width = rect.right - rect.left;
+		var height = rect.bottom - rect.top;
+
+		return {
+			x: rect.left,
+			y: rect.top,
+			cx: rect.left + width / 2,
+			cy: rect.top + height / 2,
+			w: width,
+			h: height,
+			hw: width / 2,
+			wh: height / 2
+		};
+	}
+
+	function simulateDrag(options, callback) {
+		options.to.el = options.to.el || options.from.el;
+
+		var fromEl = getTraget(options.from);
+		var toEl = getTraget(options.to);
+    var scrollable = options.scrollable;
+
+		var fromRect = getRect(fromEl);
+		var toRect = getRect(toEl);
+
+		var startTime = new Date().getTime();
+		var duration = options.duration || 1000;
+		simulateEvent(fromEl, 'mousedown', {button: 0});
+		options.ontap && options.ontap();
+		window.SIMULATE_DRAG_ACTIVE = 1;
+
+		var dragInterval = setInterval(function loop() {
+			var progress = (new Date().getTime() - startTime) / duration;
+			var x = (fromRect.cx + (toRect.cx - fromRect.cx) * progress) - scrollable.scrollLeft;
+			var y = (fromRect.cy + (toRect.cy - fromRect.cy) * progress) - scrollable.scrollTop;
+			var overEl = fromEl.ownerDocument.elementFromPoint(x, y);
+
+			simulateEvent(overEl, 'mousemove', {
+				clientX: x,
+				clientY: y
+			});
+
+			if (progress >= 1) {
+				options.ondragend && options.ondragend();
+				simulateEvent(toEl, 'mouseup');
+				clearInterval(dragInterval);
+				window.SIMULATE_DRAG_ACTIVE = 0;
+			}
+		}, 100);
+
+		return {
+			target: fromEl,
+			fromList: fromEl.parentNode,
+			toList: toEl.parentNode
+		};
+	}
+
+
+	// Export
+	window.simulateEvent = simulateEvent;
+	window.simulateDrag = simulateDrag;
+})();

app/assets/javascripts/boards/vue_resource_interceptor.js.es6

+Vue.http.interceptors.push((request, next)  => {
+  Vue.activeResources = Vue.activeResources ? Vue.activeResources + 1 : 1;
+
+  setTimeout(() => {
+    Vue.activeResources--;
+  }, 500);
+  next();
+});

app/assets/javascripts/copy_to_clipboard.js

@@ -34,6 +34,7 @@
 
   $(function() {
     var clipboard;
+
     clipboard = new Clipboard('[data-clipboard-target], [data-clipboard-text]');
     clipboard.on('success', genericSuccess);
     return clipboard.on('error', genericError);

app/assets/javascripts/create_label.js.es6

+(function (w) {
+  class CreateLabelDropdown {
+    constructor ($el, projectId) {
+      this.$el = $el;
+      this.projectId = projectId;
+      this.$dropdownBack = $('.dropdown-menu-back', this.$el.closest('.dropdown'));
+      this.$cancelButton = $('.js-cancel-label-btn', this.$el);
+      this.$newLabelField = $('#new_label_name', this.$el);
+      this.$newColorField = $('#new_label_color', this.$el);
+      this.$colorPreview = $('.js-dropdown-label-color-preview', this.$el);
+      this.$newLabelError = $('.js-label-error', this.$el);
+      this.$newLabelCreateButton = $('.js-new-label-btn', this.$el);
+      this.$colorSuggestions = $('.suggest-colors-dropdown a', this.$el);
+
+      this.$newLabelError.hide();
+      this.$newLabelCreateButton.disable();
+
+      this.cleanBinding();
+      this.addBinding();
+    }
+
+    cleanBinding () {
+      this.$colorSuggestions.off('click');
+      this.$newLabelField.off('keyup change');
+      this.$newColorField.off('keyup change');
+      this.$dropdownBack.off('click');
+      this.$cancelButton.off('click');
+      this.$newLabelCreateButton.off('click');
+    }
+
+    addBinding () {
+      const self = this;
+
+      this.$colorSuggestions.on('click', function (e) {
+        const $this = $(this);
+        self.addColorValue(e, $this);
+      });
+
+      this.$newLabelField.on('keyup change', this.enableLabelCreateButton.bind(this));
+      this.$newColorField.on('keyup change', this.enableLabelCreateButton.bind(this));
+
+      this.$dropdownBack.on('click', this.resetForm.bind(this));
+
+      this.$cancelButton.on('click', function(e) {
+        e.preventDefault();
+        e.stopPropagation();
+
+        self.resetForm();
+        self.$dropdownBack.trigger('click');
+      });
+
+      this.$newLabelCreateButton.on('click', this.saveLabel.bind(this));
+    }
+
+    addColorValue (e, $this) {
+      e.preventDefault();
+      e.stopPropagation();
+
+      this.$newColorField.val($this.data('color')).trigger('change');
+      this.$colorPreview
+        .css('background-color', $this.data('color'))
+        .parent()
+        .addClass('is-active');
+    }
+
+    enableLabelCreateButton () {
+      if (this.$newLabelField.val() !== '' && this.$newColorField.val() !== '') {
+        this.$newLabelError.hide();
+        this.$newLabelCreateButton.enable();
+      } else {
+        this.$newLabelCreateButton.disable();
+      }
+    }
+
+    resetForm () {
+      this.$newLabelField
+        .val('')
+        .trigger('change');
+
+      this.$newColorField
+        .val('')
+        .trigger('change');
+
+      this.$colorPreview
+        .css('background-color', '')
+        .parent()
+        .removeClass('is-active');
+    }
+
+    saveLabel (e) {
+      e.preventDefault();
+      e.stopPropagation();
+
+      Api.newLabel(this.projectId, {
+        name: this.$newLabelField.val(),
+        color: this.$newColorField.val()
+      }, (label) => {
+        this.$newLabelCreateButton.enable();
+
+        if (label.message) {
+          let errors;
+
+          if (typeof label.message === 'string') {
+            errors = label.message;
+          } else {
+            errors = label.message.map(function (value, key) {
+              return key + " " + value[0];
+            }).join("<br/>");
+          }
+
+          this.$newLabelError
+            .html(errors)
+            .show();
+        } else {
+          this.$dropdownBack.trigger('click');
+        }
+      });
+    }
+  }
+
+  if (!w.gl) {
+    w.gl = {};
+  }
+
+  gl.CreateLabelDropdown = CreateLabelDropdown;
+})(window);

app/assets/javascripts/labels_select.js

@@ -4,7 +4,7 @@
       var _this;
       _this = this;
       $('.js-label-select').each(function(i, dropdown) {
-        var $block, $colorPreview, $dropdown, $form, $loading, $newLabelCreateButton, $newLabelError, $selectbox, $sidebarCollapsedValue, $value, abilityName, defaultLabel, enableLabelCreateButton, issueURLSplit, issueUpdateURL, labelHTMLTemplate, labelNoneHTMLTemplate, labelUrl, newColorField, newLabelField, projectId, resetForm, saveLabel, saveLabelData, selectedLabel, showAny, showNo;
+        var $block, $colorPreview, $dropdown, $form, $loading, $selectbox, $sidebarCollapsedValue, $value, abilityName, defaultLabel, enableLabelCreateButton, issueURLSplit, issueUpdateURL, labelHTMLTemplate, labelNoneHTMLTemplate, labelUrl, projectId, saveLabelData, selectedLabel, showAny, showNo;
         $dropdown = $(dropdown);
         projectId = $dropdown.data('project-id');
         labelUrl = $dropdown.data('labels');
@@ -13,8 +13,6 @@
         if ((selectedLabel != null) && !$dropdown.hasClass('js-multiselect')) {
           selectedLabel = selectedLabel.split(',');
         }
-        newLabelField = $('#new_label_name');
-        newColorField = $('#new_label_color');
         showNo = $dropdown.data('show-no');
         showAny = $dropdown.data('show-any');
         defaultLabel = $dropdown.data('default-label');
@@ -24,10 +22,6 @@
         $form = $dropdown.closest('form');
         $sidebarCollapsedValue = $block.find('.sidebar-collapsed-icon span');
         $value = $block.find('.value');
-        $newLabelError = $('.js-label-error');
-        $colorPreview = $('.js-dropdown-label-color-preview');
-        $newLabelCreateButton = $('.js-new-label-btn');
-        $newLabelError.hide();
         $loading = $block.find('.block-loading').fadeOut();
         if (issueUpdateURL != null) {
           issueURLSplit = issueUpdateURL.split('/');
@@ -36,60 +30,9 @@
           labelHTMLTemplate = _.template('<% _.each(labels, function(label){ %> <a href="<%- ["",issueURLSplit[1], issueURLSplit[2],""].join("/") %>issues?label_name[]=<%- encodeURIComponent(label.title) %>"> <span class="label has-tooltip color-label" title="<%- label.description %>" style="background-color: <%- label.color %>; color: <%- label.text_color %>;"> <%- label.title %> </span> </a> <% }); %>');
           labelNoneHTMLTemplate = '<span class="no-value">None</span>';
         }
-        if (newLabelField.length) {
-          $('.suggest-colors-dropdown a').on("click", function(e) {
-            e.preventDefault();
-            e.stopPropagation();
-            newColorField.val($(this).data('color')).trigger('change');
-            return $colorPreview.css('background-color', $(this).data('color')).parent().addClass('is-active');
-          });
-          resetForm = function() {
-            newLabelField.val('').trigger('change');
-            newColorField.val('').trigger('change');
-            return $colorPreview.css('background-color', '').parent().removeClass('is-active');
-          };
-          $('.dropdown-menu-back').on('click', function() {
-            return resetForm();
-          });
-          $('.js-cancel-label-btn').on('click', function(e) {
-            e.preventDefault();
-            e.stopPropagation();
-            resetForm();
-            return $('.dropdown-menu-back', $dropdown.parent()).trigger('click');
-          });
-          enableLabelCreateButton = function() {
-            if (newLabelField.val() !== '' && newColorField.val() !== '') {
-              $newLabelError.hide();
-              return $newLabelCreateButton.enable();
-            } else {
-              return $newLabelCreateButton.disable();
-            }
-          };
-          saveLabel = function() {
-            return Api.newLabel(projectId, {
-              name: newLabelField.val(),
-              color: newColorField.val()
-            }, function(label) {
-              var errors;
-              $newLabelCreateButton.enable();
-              if (label.message != null) {
-                errors = _.map(label.message, function(value, key) {
-                  return key + " " + value[0];
-                });
-                return $newLabelError.html(errors.join("<br/>")).show();
-              } else {
-                return $('.dropdown-menu-back', $dropdown.parent()).trigger('click');
-              }
-            });
-          };
-          newLabelField.on('keyup change', enableLabelCreateButton);
-          newColorField.on('keyup change', enableLabelCreateButton);
-          $newLabelCreateButton.disable().on('click', function(e) {
-            e.preventDefault();
-            e.stopPropagation();
-            return saveLabel();
-          });
-        }
+
+        new gl.CreateLabelDropdown($dropdown.closest('.dropdown').find('.dropdown-new-label'), projectId);
+
         saveLabelData = function() {
           var data, selected;
           selected = $dropdown.closest('.selectbox').find("input[name='" + ($dropdown.data('field-name')) + "']").map(function() {
@@ -270,6 +213,9 @@
             isMRIndex = page === 'projects:merge_requests:index';
             $selectbox.hide();
             $value.removeAttr('style');
+            if (page === 'projects:boards:show') {
+              return;
+            }
             if ($dropdown.hasClass('js-multiselect')) {
               if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
                 selectedLabels = $dropdown.closest('form').find("input:hidden[name='" + ($dropdown.data('fieldName')) + "']");
@@ -289,7 +235,7 @@
             }
           },
           multiSelect: $dropdown.hasClass('js-multiselect'),
-          clicked: function(label) {
+          clicked: function(label, $el, e) {
             var isIssueIndex, isMRIndex, page;
             _this.enableBulkLabelDropdown();
             if ($dropdown.hasClass('js-filter-bulk-update')) {
@@ -298,7 +244,23 @@
             page = $('body').data('page');
             isIssueIndex = page === 'projects:issues:index';
             isMRIndex = page === 'projects:merge_requests:index';
-            if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
+            if (page === 'projects:boards:show') {
+              if (label.isAny) {
+                gl.issueBoards.BoardsStore.state.filters['label_name'] = [];
+              } else if (label.title) {
+                gl.issueBoards.BoardsStore.state.filters['label_name'].push(label.title);
+              } else {
+                var filters = gl.issueBoards.BoardsStore.state.filters['label_name'];
+                filters = filters.filter(function (label) {
+                  return label !== $el.text().trim();
+                });
+                gl.issueBoards.BoardsStore.state.filters['label_name'] = filters;
+              }
+
+              gl.issueBoards.BoardsStore.updateFiltersUrl();
+              e.preventDefault();
+              return;
+            } else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
               if (!$dropdown.hasClass('js-multiselect')) {
                 selectedLabel = label.title;
                 return Issuable.filterResults($dropdown.closest('form'));

app/assets/javascripts/milestone_select.js

@@ -94,7 +94,7 @@
             $selectbox.hide();
             return $value.css('display', '');
           },
-          clicked: function(selected) {
+          clicked: function(selected, $el, e) {
             var data, isIssueIndex, isMRIndex, page;
             page = $('body').data('page');
             isIssueIndex = page === 'projects:issues:index';
@@ -102,7 +102,11 @@
             if ($dropdown.hasClass('js-filter-bulk-update')) {
               return;
             }
-            if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
+            if (page === 'projects:boards:show') {
+              gl.issueBoards.BoardsStore.state.filters[$dropdown.data('field-name')] = selected.name;
+              gl.issueBoards.BoardsStore.updateFiltersUrl();
+              e.preventDefault();
+            } else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
               if (selected.name != null) {
                 selectedMilestone = selected.name;
               } else {

app/assets/javascripts/users_select.js

@@ -141,7 +141,7 @@
               $selectbox.hide();
               return $value.css('display', '');
             },
-            clicked: function(user) {
+            clicked: function(user, $el, e) {
               var isIssueIndex, isMRIndex, page, selected;
               page = $('body').data('page');
               isIssueIndex = page === 'projects:issues:index';
@@ -149,7 +149,12 @@
               if ($dropdown.hasClass('js-filter-bulk-update')) {
                 return;
               }
-              if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
+              if (page === 'projects:boards:show') {
+                selectedId = user.id;
+                gl.issueBoards.BoardsStore.state.filters[$dropdown.data('field-name')] = user.id;
+                gl.issueBoards.BoardsStore.updateFiltersUrl();
+                e.preventDefault();
+              } else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
                 selectedId = user.id;
                 return Issuable.filterResults($dropdown.closest('form'));
               } else if ($dropdown.hasClass('js-filter-submit')) {

app/assets/stylesheets/framework/variables.scss

@@ -276,3 +276,5 @@ $personal-access-tokens-disabled-label-color: #bbb;
 
 $ci-output-bg: #1d1f21;
 $ci-text-color: #c5c8c6;
+
+$issue-boards-font-size: 15px;

app/assets/stylesheets/pages/boards.scss

+[v-cloak] {
+  display: none;
+}
+
+.user-can-drag {
+  cursor: -webkit-grab;
+  cursor: grab;
+}
+
+.is-dragging {
+  * {
+    cursor: -webkit-grabbing;
+    cursor: grabbing;
+  }
+}
+
+.dropdown-menu-issues-board-new {
+  width: 320px;
+
+  .dropdown-content {
+    max-height: 150px;
+	}
+}
+
+.issue-board-dropdown-content {
+  margin: 0 8px 10px;
+  padding-bottom: 10px;
+  border-bottom: 1px solid $dropdown-divider-color;
+
+  > p {
+    margin: 0;
+    font-size: 14px;
+    color: #9c9c9c;
+  }
+}
+
+.issue-boards-page {
+  .content-wrapper {
+    display: -webkit-flex;
+    display: flex;
+    -webkit-flex-direction: column;
+    flex-direction: column;
+  }
+
+  .sub-nav,
+  .issues-filters {
+    -webkit-flex: none;
+    flex: none;
+  }
+
+  .page-with-sidebar {
+    display: -webkit-flex;
+    display: flex;
+    min-height: 100vh;
+    max-height: 100vh;
+    padding-bottom: 0;
+  }
+
+  .issue-boards-content {
+    display: -webkit-flex;
+    display: flex;
+    -webkit-flex: 1;
+    flex: 1;
+    width: 100%;
+
+    .content {
+      display: -webkit-flex;
+      display: flex;
+      -webkit-flex-direction: column;
+      flex-direction: column;
+      width: 100%;
+    }
+  }
+}
+
+.boards-app-loading {
+  width: 100%;
+  font-size: 34px;
+}
+
+.boards-list {
+  display: -webkit-flex;
+  display: flex;
+  -webkit-flex: 1;
+  flex: 1;
+  -webkit-flex-basis: 0;
+  flex-basis: 0;
+  min-height: calc(100vh - 152px);
+  max-height: calc(100vh - 152px);
+  padding-top: 25px;
+  padding-right: ($gl-padding / 2);
+  padding-left: ($gl-padding / 2);
+  overflow-x: scroll;
+
+  @media (min-width: $screen-sm-min) {
+    min-height: 475px;
+    max-height: none;
+  }
+}
+
+.board {
+  display: -webkit-flex;
+  display: flex;
+  min-width: calc(100vw - 15px);
+  max-width: calc(100vw - 15px);
+  margin-bottom: 25px;
+  padding-right: ($gl-padding / 2);
+  padding-left: ($gl-padding / 2);
+
+  @media (min-width: $screen-sm-min) {
+    min-width: 400px;
+    max-width: 400px;
+  }
+}
+
+.board-inner {
+  display: -webkit-flex;
+  display: flex;
+  -webkit-flex-direction: column;
+  flex-direction: column;
+  width: 100%;
+  font-size: $issue-boards-font-size;
+  background: $background-color;
+  border: 1px solid $border-color;
+  border-radius: $border-radius-default;
+}
+
+.board-header {
+  border-top-left-radius: $border-radius-default;
+  border-top-right-radius: $border-radius-default;
+
+  &.has-border {
+    border-top: 3px solid;
+
+    .board-title {
+      padding-top: ($gl-padding - 3px);
+    }
+  }
+}
+
+.board-header-loading-spinner {
+  margin-right: 10px;
+  color: $gray-darkest;
+}
+
+.board-inner-container {
+  border-bottom: 1px solid $border-color;
+  padding: $gl-padding;
+}
+
+.board-title {
+  position: relative;
+  margin: 0;
+  padding: $gl-padding;
+  font-size: 1em;
+  border-bottom: 1px solid $border-color;
+
+  .board-mobile-handle {
+    position: relative;
+    left: 0;
+    top: 1px;
+    margin-top: 0;
+    margin-right: 5px;
+  }
+}
+
+.board-search-container {
+  position: relative;
+  background-color: #fff;
+
+  .form-control {
+    padding-right: 30px;
+  }
+}
+
+.board-search-icon,
+.board-search-clear-btn {
+  position: absolute;
+  right: $gl-padding + 10px;
+  top: 50%;
+  margin-top: -7px;
+  font-size: 14px;
+}
+
+.board-search-icon {
+  color: $gl-placeholder-color;
+}
+
+.board-search-clear-btn {
+  padding: 0;
+  line-height: 1;
+  background: transparent;
+  border: 0;
+  outline: 0;
+
+  &:hover {
+    color: $gl-link-color;
+  }
+}
+
+.board-delete {
+  margin-right: 10px;
+  padding: 0;
+  color: $gray-darkest;
+  background-color: transparent;
+  border: 0;
+  outline: 0;
+
+  &:hover {
+    color: $gl-link-color;
+  }
+}
+
+.board-blank-state {
+  height: 100%;
+  padding: $gl-padding;
+  background-color: #fff;
+}
+
+.board-blank-state-list {
+  list-style: none;
+
+  > li:not(:last-child) {
+    margin-bottom: 8px;
+  }
+
+  .label-color {
+    position: relative;
+    top: 2px;
+    display: inline-block;
+    width: 16px;
+    height: 16px;
+    margin-right: 3px;
+    border-radius: $border-radius-default;
+  }
+}
+
+.board-list {
+  -webkit-flex: 1;
+  flex: 1;
+  height: 400px;
+  margin-bottom: 0;
+  padding: 5px;
+  overflow-y: scroll;
+  overflow-x: hidden;
+}
+
+.board-list-loading {
+  margin-top: 10px;
+  font-size: 26px;
+}
+
+.is-ghost {
+  opacity: 0.3;
+}
+
+.is-dragging {
+  // Important because plugin sets inline CSS
+  opacity: 1!important;
+}
+
+.card {
+  position: relative;
+  width: 100%;
+  padding: 10px $gl-padding;
+  background: #fff;
+  border-radius: $border-radius-default;
+  box-shadow: 0 1px 2px rgba(186, 186, 186, 0.5);
+  list-style: none;
+
+  &.user-can-drag {
+    padding-left: ($gl-padding * 2);
+
+    @media (min-width: $screen-sm-min) {
+      padding-left: $gl-padding;
+    }
+  }
+
+  &:not(:last-child) {
+    margin-bottom: 5px;
+  }
+
+  a {
+    cursor: pointer;
+  }
+
+  .label {
+    border: 0;
+    outline: 0;
+  }
+
+  .confidential-icon {
+    margin-right: 5px;
+  }
+}
+
+.board-mobile-handle {
+  position: absolute;
+  left: 10px;
+  top: 50%;
+  margin-top: (-15px / 2);
+
+  @media (min-width: $screen-sm-min) {
+    display: none;
+  }
+}
+
+.card-title {
+  margin: 0;
+  font-size: 1em;
+
+  a {
+    color: inherit;
+  }
+}
+
+.card-footer {
+  margin-top: 5px;
+
+  .label {
+    margin-right: 4px;
+    font-size: (14px / $issue-boards-font-size) * 1em;
+  }
+}
+
+.card-number {
+  margin-right: 8px;
+  font-weight: 500;
+}

app/controllers/projects/board_lists_controller.rb

+class Projects::BoardListsController < Projects::ApplicationController
+  respond_to :json
+
+  before_action :authorize_admin_list!
+
+  rescue_from ActiveRecord::RecordNotFound, with: :record_not_found
+
+  def create
+    list = Boards::Lists::CreateService.new(project, current_user, list_params).execute
+
+    if list.valid?
+      render json: list.as_json(only: [:id, :list_type, :position], methods: [:title], include: { label: { only: [:id, :title, :description, :color, :priority] } })
+    else
+      render json: list.errors, status: :unprocessable_entity
+    end
+  end
+
+  def update
+    service = Boards::Lists::MoveService.new(project, current_user, move_params)
+
+    if service.execute
+      head :ok
+    else
+      head :unprocessable_entity
+    end
+  end
+
+  def destroy
+    service = Boards::Lists::DestroyService.new(project, current_user, params)
+
+    if service.execute
+      head :ok
+    else
+      head :unprocessable_entity
+    end
+  end
+
+  def generate
+    service = Boards::Lists::GenerateService.new(project, current_user)
+
+    if service.execute
+      render json: project.board.lists.label.as_json(only: [:id, :list_type, :position], methods: [:title], include: { label: { only: [:id, :title, :description, :color, :priority] } })
+    else
+      head :unprocessable_entity
+    end
+  end
+
+  private
+
+  def authorize_admin_list!
+    return render_403 unless can?(current_user, :admin_list, project)
+  end
+
+  def list_params
+    params.require(:list).permit(:label_id)
+  end
+
+  def move_params
+    params.require(:list).permit(:position).merge(id: params[:id])
+  end
+
+  def record_not_found(exception)
+    render json: { error: exception.message }, status: :not_found
+  end
+end

app/controllers/projects/boards/application_controller.rb

+module Projects
+  module Boards
+    class ApplicationController < Projects::ApplicationController
+      respond_to :json
+
+      rescue_from ActiveRecord::RecordNotFound, with: :record_not_found
+
+      private
+
+      def record_not_found(exception)
+        render json: { error: exception.message }, status: :not_found
+      end
+    end
+  end
+end

app/controllers/projects/boards/issues_controller.rb

+module Projects
+  module Boards
+    class IssuesController < Boards::ApplicationController
+      before_action :authorize_read_issue!, only: [:index]
+      before_action :authorize_update_issue!, only: [:update]
+
+      def index
+        issues = ::Boards::Issues::ListService.new(project, current_user, filter_params).execute
+        issues = issues.page(params[:page])
+
+        render json: issues.as_json(
+          only: [:iid, :title, :confidential],
+          include: {
+            assignee: { only: [:id, :name, :username], methods: [:avatar_url] },
+            labels:   { only: [:id, :title, :description, :color, :priority] }
+          })
+      end
+
+      def update
+        service = ::Boards::Issues::MoveService.new(project, current_user, move_params)
+
+        if service.execute(issue)
+          head :ok
+        else
+          head :unprocessable_entity
+        end
+      end
+
+      private
+
+      def issue
+        @issue ||=
+          IssuesFinder.new(current_user, project_id: project.id, state: 'all')
+                      .execute
+                      .where(iid: params[:id])
+                      .first!
+      end
+
+      def authorize_read_issue!
+        return render_403 unless can?(current_user, :read_issue, project)
+      end
+
+      def authorize_update_issue!
+        return render_403 unless can?(current_user, :update_issue, issue)
+      end
+
+      def filter_params
+        params.merge(id: params[:list_id])
+      end
+
+      def move_params
+        params.permit(:id, :from_list_id, :to_list_id)
+      end
+    end
+  end
+end

app/controllers/projects/boards/lists_controller.rb

+module Projects
+  module Boards
+    class ListsController < Boards::ApplicationController
+      before_action :authorize_admin_list!, only: [:create, :update, :destroy, :generate]
+      before_action :authorize_read_list!, only: [:index]
+
+      def index
+        render json: serialize_as_json(project.board.lists)
+      end
+
+      def create
+        list = ::Boards::Lists::CreateService.new(project, current_user, list_params).execute
+
+        if list.valid?
+          render json: serialize_as_json(list)
+        else
+          render json: list.errors, status: :unprocessable_entity
+        end
+      end
+
+      def update
+        list = project.board.lists.movable.find(params[:id])
+        service = ::Boards::Lists::MoveService.new(project, current_user, move_params)
+
+        if service.execute(list)
+          head :ok
+        else
+          head :unprocessable_entity
+        end
+      end
+
+      def destroy
+        list = project.board.lists.destroyable.find(params[:id])
+        service = ::Boards::Lists::DestroyService.new(project, current_user, params)
+
+        if service.execute(list)
+          head :ok
+        else
+          head :unprocessable_entity
+        end
+      end
+
+      def generate
+        service = ::Boards::Lists::GenerateService.new(project, current_user)
+
+        if service.execute
+          render json: serialize_as_json(project.board.lists.movable)
+        else
+          head :unprocessable_entity
+        end
+      end
+
+      private
+
+      def authorize_admin_list!
+        return render_403 unless can?(current_user, :admin_list, project)
+      end
+
+      def authorize_read_list!
+        return render_403 unless can?(current_user, :read_list, project)
+      end
+
+      def list_params
+        params.require(:list).permit(:label_id)
+      end
+
+      def move_params
+        params.require(:list).permit(:position)
+      end
+
+      def serialize_as_json(resource)
+        resource.as_json(
+          only: [:id, :list_type, :position],
+          methods: [:title],
+          include: {
+            label: { only: [:id, :title, :description, :color, :priority] }
+          })
+      end
+    end
+  end
+end

app/controllers/projects/boards_controller.rb

+class Projects::BoardsController < Projects::ApplicationController
+  respond_to :html
+
+  before_action :authorize_read_board!, only: [:show]
+
+  def show
+    ::Boards::CreateService.new(project, current_user).execute
+  end
+
+  private
+
+  def authorize_read_board!
+    return access_denied! unless can?(current_user, :read_board, project)
+  end
+end

app/helpers/application_helper.rb

@@ -320,4 +320,8 @@ module ApplicationHelper
       capture(&block)
     end
   end
+
+  def page_class
+    "issue-boards-page" if current_controller?(:boards)
+  end
 end

app/models/ability.rb

@@ -90,6 +90,8 @@ class Ability
       if project && project.public?
         rules = [
           :read_project,
+          :read_board,
+          :read_list,
           :read_wiki,
           :read_label,
           :read_milestone,
@@ -228,6 +230,8 @@ class Ability
         :read_project,
         :read_wiki,
         :read_issue,
+        :read_board,
+        :read_list,
         :read_label,
         :read_milestone,
         :read_project_snippet,
@@ -249,6 +253,7 @@ class Ability
         :update_issue,
         :admin_issue,
         :admin_label,
+        :admin_list,
         :read_commit_status,
         :read_build,
         :read_container_image,

app/models/board.rb

+class Board < ActiveRecord::Base
+  belongs_to :project
+
+  has_many :lists, -> { order(:list_type, :position) }, dependent: :delete_all
+
+  validates :project, presence: true
+end

app/models/label.rb

@@ -13,6 +13,8 @@ class Label < ActiveRecord::Base
   default_value_for :color, DEFAULT_COLOR
 
   belongs_to :project
+
+  has_many :lists, dependent: :destroy
   has_many :label_links, dependent: :destroy
   has_many :issues, through: :label_links, source: :target, source_type: 'Issue'
   has_many :merge_requests, through: :label_links, source: :target, source_type: 'MergeRequest'

app/models/list.rb

+class List < ActiveRecord::Base
+  belongs_to :board
+  belongs_to :label
+
+  enum list_type: { backlog: 0, label: 1, done: 2 }
+
+  validates :board, :list_type, presence: true
+  validates :label, :position, presence: true, if: :label?
+  validates :label_id, uniqueness: { scope: :board_id }, if: :label?
+  validates :position, numericality: { only_integer: true, greater_than_or_equal_to: 0 }, if: :label?
+
+  before_destroy :can_be_destroyed
+
+  scope :destroyable, -> { where(list_type: list_types[:label]) }
+  scope :movable, -> { where(list_type: list_types[:label]) }
+
+  def destroyable?
+    label?
+  end
+
+  def movable?
+    label?
+  end
+
+  def title
+    label? ? label.name : list_type.humanize
+  end
+
+  private
+
+  def can_be_destroyed
+    destroyable?
+  end
+end

app/models/project.rb

@@ -62,6 +62,8 @@ class Project < ActiveRecord::Base
   belongs_to :group, -> { where(type: Group) }, foreign_key: 'namespace_id'
   belongs_to :namespace
 
+  has_one :board, dependent: :destroy
+
   has_one :last_event, -> {order 'events.created_at DESC'}, class_name: 'Event', foreign_key: 'project_id'
 
   # Project services

app/services/boards/base_service.rb

+module Boards
+  class BaseService < ::BaseService
+    delegate :board, to: :project
+  end
+end

app/services/boards/create_service.rb

+module Boards
+  class CreateService < Boards::BaseService
+    def execute
+      create_board! unless project.board.present?
+      project.board
+    end
+
+    private
+
+    def create_board!
+      project.create_board
+      project.board.lists.create(list_type: :backlog)
+      project.board.lists.create(list_type: :done)
+    end
+  end
+end

app/services/boards/issues/list_service.rb

+module Boards
+  module Issues
+    class ListService < Boards::BaseService
+      def execute
+        issues = IssuesFinder.new(current_user, filter_params).execute
+        issues = without_board_labels(issues) unless list.movable?
+        issues = with_list_label(issues) if list.movable?
+        issues
+      end
+
+      private
+
+      def list
+        @list ||= board.lists.find(params[:id])
+      end
+
+      def filter_params
+        set_default_scope
+        set_default_sort
+        set_project
+        set_state
+
+        params
+      end
+
+      def set_default_scope
+        params[:scope] = 'all'
+      end
+
+      def set_default_sort
+        params[:sort] = 'priority'
+      end
+
+      def set_project
+        params[:project_id] = project.id
+      end
+
+      def set_state
+        params[:state] = list.done? ? 'closed' : 'opened'
+      end
+
+      def board_label_ids
+        @board_label_ids ||= board.lists.movable.pluck(:label_id)
+      end
+
+      def without_board_labels(issues)
+        return issues unless board_label_ids.any?
+
+        issues.where.not(
+          LabelLink.where("label_links.target_type = 'Issue' AND label_links.target_id = issues.id")
+                   .where(label_id: board_label_ids).limit(1).arel.exists
+        )
+      end
+
+      def with_list_label(issues)
+        issues.where(
+          LabelLink.where("label_links.target_type = 'Issue' AND label_links.target_id = issues.id")
+                   .where("label_links.label_id = ?", list.label_id).limit(1).arel.exists
+        )
+      end
+    end
+  end
+end

app/services/boards/issues/move_service.rb

+module Boards
+  module Issues
+    class MoveService < Boards::BaseService
+      def execute(issue)
+        return false unless can?(current_user, :update_issue, issue)
+        return false unless valid_move?
+
+        update_service.execute(issue)
+      end
+
+      private
+
+      def valid_move?
+        moving_from_list.present? && moving_to_list.present? &&
+          moving_from_list != moving_to_list
+      end
+
+      def moving_from_list
+        @moving_from_list ||= board.lists.find_by(id: params[:from_list_id])
+      end
+
+      def moving_to_list
+        @moving_to_list ||= board.lists.find_by(id: params[:to_list_id])
+      end
+
+      def update_service
+        ::Issues::UpdateService.new(project, current_user, issue_params)
+      end
+
+      def issue_params
+        {
+          add_label_ids: add_label_ids,
+          remove_label_ids: remove_label_ids,
+          state_event: issue_state
+        }
+      end
+
+      def issue_state
+        return 'reopen' if moving_from_list.done?
+        return 'close'  if moving_to_list.done?
+      end
+
+      def add_label_ids
+        [moving_to_list.label_id].compact
+      end
+
+      def remove_label_ids
+        label_ids =
+          if moving_to_list.movable?
+            moving_from_list.label_id
+          else
+            board.lists.movable.pluck(:label_id)
+          end
+
+        Array(label_ids).compact
+      end
+    end
+  end
+end

app/services/boards/lists/create_service.rb

+module Boards
+  module Lists
+    class CreateService < Boards::BaseService
+      def execute
+        List.transaction do
+          create_list_at(next_position)
+        end
+      end
+
+      private
+
+      def next_position
+        max_position = board.lists.movable.maximum(:position)
+        max_position.nil? ? 0 : max_position.succ
+      end
+
+      def create_list_at(position)
+        board.lists.create(params.merge(list_type: :label, position: position))
+      end
+    end
+  end
+end

app/services/boards/lists/destroy_service.rb

+module Boards
+  module Lists
+    class DestroyService < Boards::BaseService
+      def execute(list)
+        return false unless list.destroyable?
+
+        list.with_lock do
+          decrement_higher_lists(list)
+          remove_list(list)
+        end
+      end
+
+      private
+
+      def decrement_higher_lists(list)
+        board.lists.movable.where('position > ?',  list.position)
+                   .update_all('position = position - 1')
+      end
+
+      def remove_list(list)
+        list.destroy
+      end
+    end
+  end
+end

app/services/boards/lists/generate_service.rb

+module Boards
+  module Lists
+    class GenerateService < Boards::BaseService
+      def execute
+        return false unless board.lists.movable.empty?
+
+        List.transaction do
+          label_params.each { |params| create_list(params) }
+        end
+
+        true
+      end
+
+      private
+
+      def create_list(params)
+        label = find_or_create_label(params)
+        Lists::CreateService.new(project, current_user, label_id: label.id).execute
+      end
+
+      def find_or_create_label(params)
+        project.labels.create_with(color: params[:color])
+                      .find_or_create_by(name: params[:name])
+      end
+
+      def label_params
+        [
+          { name: 'Development', color: '#5CB85C' },
+          { name: 'Testing',     color: '#F0AD4E' },
+          { name: 'Production',  color: '#FF5F00' },
+          { name: 'Ready',       color: '#FF0000' }
+        ]
+      end
+    end
+  end
+end

app/services/boards/lists/move_service.rb

+module Boards
+  module Lists
+    class MoveService < Boards::BaseService
+      def execute(list)
+        @old_position = list.position
+        @new_position = params[:position]
+
+        return false unless list.movable?
+        return false unless valid_move?
+
+        list.with_lock do
+          reorder_intermediate_lists
+          update_list_position(list)
+        end
+      end
+
+      private
+
+      attr_reader :old_position, :new_position
+
+      def valid_move?
+        new_position.present? && new_position != old_position &&
+          new_position >= 0 && new_position < board.lists.movable.size
+      end
+
+      def reorder_intermediate_lists
+        if old_position < new_position
+          decrement_intermediate_lists
+        else
+          increment_intermediate_lists
+        end
+      end
+
+      def decrement_intermediate_lists
+        board.lists.movable.where('position > ?',  old_position)
+                           .where('position <= ?', new_position)
+                           .update_all('position = position - 1')
+      end
+
+      def increment_intermediate_lists
+        board.lists.movable.where('position >= ?', new_position)
+                           .where('position < ?',  old_position)
+                           .update_all('position = position + 1')
+      end
+
+      def update_list_position(list)
+        list.update_attribute(:position, new_position)
+      end
+    end
+  end
+end

app/views/layouts/_page.html.haml

@@ -23,7 +23,6 @@
     = render "layouts/broadcast"
     = render "layouts/flash"
     = yield :flash_message
-    %div{ class: (container_class unless @no_container) }
+    %div{ class: "#{(container_class unless @no_container)} #{@content_class}" }
       .content
-        .clearfix
         = yield

app/views/layouts/application.html.haml

 !!! 5
-%html{ lang: "en"}
+%html{ lang: "en", class: "#{page_class}" }
   = render "layouts/head"
   %body{class: "#{user_application_theme}", data: {page: body_data_page, project: "#{@project.path if @project}", group: "#{@group.path if @group}"}}
     = Gon::Base.render_data

app/views/projects/boards/components/_blank_state.html.haml

+%board-blank-state{ "inline-template" => true,
+  "v-if" => "list.id == 'blank'" }
+  .board-blank-state
+    %p
+      Add the following default lists to your Issue Board with one click:
+    %ul.board-blank-state-list
+      %li{ "v-for" => "label in predefinedLabels" }
+        %span.label-color{ ":style" =>  "{ backgroundColor: label.color } " }
+        {{ label.title }}
+    %p
+      Starting out with the default set of lists will get you right on the way to making the most of your board.
+    %button.btn.btn-create.btn-inverted.btn-block{ type: "button", "@click.stop" => "addDefaultLists" }
+      Add default lists
+    %button.btn.btn-default.btn-block{ type: "button", "@click.stop" => "clearBlankState" }
+      Nevermind, I'll use my own

app/views/projects/boards/components/_board.html.haml

+%board{ "inline-template" => true,
+  "v-cloak" => true,
+  "v-for" => "list in state.lists | orderBy 'position'",
+  "v-ref:board" => true,
+  ":list" => "list",
+  ":disabled" => "disabled",
+  ":issue-link-base" => "issueLinkBase",
+  "track-by" => "_uid" }
+  .board{ ":class" => "{ 'is-draggable': !list.preset }",
+    ":data-id" => "list.id" }
+    .board-inner
+      %header.board-header{ ":class" => "{ 'has-border': list.label }", ":style" => "{ borderTopColor: (list.label ? list.label.color : null) }" }
+        %h3.board-title.js-board-handle{ ":class" => "{ 'user-can-drag': (!disabled && !list.preset) }" }
+          = icon("align-justify", class: "board-mobile-handle js-board-drag-handle", "v-if" => "(!disabled && !list.preset)")
+          {{ list.title }}
+          %span.pull-right{ "v-if" => "list.type !== 'blank'" }
+            {{ list.issues.length }}
+          - if can?(current_user, :admin_list, @project)
+            %board-delete{ "inline-template" => true,
+              ":list" => "list",
+              "v-if" => "!list.preset && list.id" }
+              %button.board-delete.has-tooltip.pull-right{ type: "button", title: "Delete list", "aria-label" => "Delete list", data: { placement: "bottom" }, "@click.stop" => "deleteBoard" }
+                = icon("trash")
+          = icon("spinner spin", class: "board-header-loading-spinner pull-right", "v-show" => "list.loadingMore")
+      .board-inner-container.board-search-container{ "v-if" => "list.canSearch()" }
+        %input.form-control{ type: "text", placeholder: "Search issues", "v-model" => "query", "debounce" => "250" }
+        = icon("search", class: "board-search-icon", "v-show" => "!query")
+        %button.board-search-clear-btn{ type: "button", role: "button", "aria-label" => "Clear search", "@click" => "query = ''", "v-show" => "query" }
+          = icon("times", class: "board-search-clear")
+      %board-list{ "inline-template" => true,
+        "v-if" => "list.type !== 'blank'",
+        ":list" => "list",
+        ":issues" => "list.issues",
+        ":loading" => "list.loading",
+        ":disabled" => "disabled",
+        ":issue-link-base" => "issueLinkBase" }
+        .board-list-loading.text-center{ "v-if" => "loading" }
+          = icon("spinner spin")
+        %ul.board-list{ "v-el:list" => true,
+          "v-show" => "!loading",
+          ":data-board" => "list.id" }
+          = render "projects/boards/components/card"
+      - if can?(current_user, :admin_list, @project)
+        = render "projects/boards/components/blank_state"

app/views/projects/boards/components/_card.html.haml

+%board-card{ "inline-template" => true,
+  "v-for" => "issue in issues | orderBy 'priority'",
+  "v-ref:issue" => true,
+  ":index" => "$index",
+  ":list" => "list",
+  ":issue" => "issue",
+  ":issue-link-base" => "issueLinkBase",
+  ":disabled" => "disabled",
+  "track-by" => "id" }
+  %li.card{ ":class" => "{ 'user-can-drag': !disabled }",
+    ":index" => "index" }
+    = icon("align-justify", class: "board-mobile-handle js-card-drag-handle", "v-if" => "!disabled")
+    %h4.card-title
+      = icon("eye-slash", class: "confidential-icon", "v-if" => "issue.confidential")
+      %a{ ":href" => "issueLinkBase + '/' + issue.id",
+        ":title" => "issue.title" }
+        {{ issue.title }}
+    .card-footer
+      %span.card-number
+        = precede '#' do
+          {{ issue.id }}
+      %button.label.color-label.has-tooltip{ "v-for" => "label in issue.labels",
+        type: "button",
+        "v-if" => "(!list.label || label.id !== list.label.id)",
+        "@click" => "filterByLabel(label, $event)",
+        ":style" => "{ backgroundColor: label.color, color: label.textColor }",
+        ":title" => "label.description",
+        data: { container: 'body' } }
+        {{ label.title }}
+      %a.has-tooltip{ ":href" => "'/u/' + issue.assignee.username",
+        ":title" => "'Assigned to ' + issue.assignee.name",
+        "v-if" => "issue.assignee",
+        data: { container: 'body' } }
+        %img.avatar.avatar-inline.s20{ ":src" => "issue.assignee.avatar", width: 20, height: 20 }

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

+- @no_container = true
+- @content_class = "issue-boards-content"
+- page_title "Boards"
+
+- content_for :page_specific_javascripts do
+  = page_specific_javascript_tag('boards/boards_bundle.js')
+  = page_specific_javascript_tag('boards/test_utils/simulate_drag.js') if Rails.env.test?
+
+= render "projects/issues/head"
+
+= render 'shared/issuable/filter', type: :boards
+
+.boards-list#board-app{ "v-cloak" => true,
+  "data-endpoint" => "#{namespace_project_board_path(@project.namespace, @project)}",
+  "data-disabled" => "#{!can?(current_user, :admin_list, @project)}",
+  "data-issue-link-base" => "#{namespace_project_issues_path(@project.namespace, @project)}" }
+  .boards-app-loading.text-center{ "v-if" => "loading" }
+    = icon("spinner spin")
+  = render "projects/boards/components/board"

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

@@ -6,6 +6,11 @@
           %span
             Issues
 
+      = nav_link(controller: :boards) do
+        = link_to namespace_project_board_path(@project.namespace, @project), title: 'Board' do
+          %span
+            Board
+
     - if project_nav_tab?(:merge_requests) && current_controller?(:merge_requests)
       = nav_link(controller: :merge_requests) do
         = link_to namespace_project_merge_requests_path(@project.namespace, @project), title: 'Merge Requests' do

app/views/shared/issuable/_filter.html.haml

@@ -27,7 +27,17 @@
           = render "shared/issuable/label_dropdown"
 
         .pull-right
+          - if controller.controller_name != 'boards'
             = render 'shared/sort_dropdown'
+          - if can?(current_user, :admin_list, @project)
+            .dropdown
+              %button.btn.btn-create.js-new-board-list{ type: "button", data: { toggle: "dropdown", labels: labels_filter_path, project_id: @project.try(:id) } }
+                Create new list
+              .dropdown-menu.dropdown-menu-paging.dropdown-menu-align-right.dropdown-menu-issues-board-new.dropdown-menu-selectable
+                = render partial: "shared/issuable/label_page_default", locals: { show_footer: true, show_create: true, show_boards_content: true, title: "Create a new list" }
+                - if can?(current_user, :admin_label, @project)
+                  = render partial: "shared/issuable/label_page_create"
+                = dropdown_loading
 
     - if controller.controller_name == 'issues'
       .issues_bulk_update.hide

app/views/shared/issuable/_label_page_default.html.haml

@@ -2,8 +2,13 @@
 - show_create = local_assigns.fetch(:show_create, true)
 - show_footer = local_assigns.fetch(:show_footer, true)
 - filter_placeholder = local_assigns.fetch(:filter_placeholder, 'Search labels')
+- show_boards_content = local_assigns.fetch(:show_boards_content, false)
 .dropdown-page-one
   = dropdown_title(title)
+  - if show_boards_content
+    .issue-board-dropdown-content
+      %p
+        Each label that exists in your issue tracker can have its own dedicated list. Select a label below to add a list to your Board and it will automatically be populated with issues that have that label. To create a list for a label that doesn't exist yet, simply create the label below.
   = dropdown_filter(filter_placeholder)
   = dropdown_content
   - if @project && show_footer
@@ -12,7 +17,7 @@
         - if can?(current_user, :admin_label, @project)
           %li
             %a.dropdown-toggle-page{href: "#"}
-              Create new
+              Create new label
         %li
           = link_to namespace_project_labels_path(@project.namespace, @project), :"data-is-link" => true do
             - if show_create && @project && can?(current_user, :admin_label, @project)

config/application.rb

@@ -85,6 +85,8 @@ module Gitlab
     config.assets.precompile << "users/users_bundle.js"
     config.assets.precompile << "network/network_bundle.js"
     config.assets.precompile << "profile/profile_bundle.js"
+    config.assets.precompile << "boards/boards_bundle.js"
+    config.assets.precompile << "boards/test_utils/simulate_drag.js"
     config.assets.precompile << "lib/utils/*.js"
     config.assets.precompile << "lib/*.js"
     config.assets.precompile << "u2f.js"

config/routes.rb

@@ -851,6 +851,20 @@ Rails.application.routes.draw do
           end
         end
 
+        resource :board, only: [:show] do
+          scope module: :boards do
+            resources :issues, only: [:update]
+
+            resources :lists, only: [:index, :create, :update, :destroy] do
+              collection do
+                post :generate
+              end
+
+              resources :issues, only: [:index]
+            end
+          end
+        end
+
         resources :todos, only: [:create]
 
         resources :uploads, only: [:create] do

db/migrate/20160727191041_create_boards.rb

+class CreateBoards < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :boards do |t|
+      t.references :project, index: true, foreign_key: true, null: false
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20160727193336_create_lists.rb

+class CreateLists < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :lists do |t|
+      t.references :board, index: true, foreign_key: true, null: false
+      t.references :label, index: true, foreign_key: true
+      t.integer :list_type, null: false, default: 1
+      t.integer :position
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb

+class AddUniqueIndexToListsLabelId < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :lists, [:board_id, :label_id], unique: true
+  end
+
+  def down
+    remove_index :lists, column: [:board_id, :label_id] if index_exists?(:lists, [:board_id, :label_id], unique: true)
+  end
+end

db/schema.rb

@@ -117,6 +117,14 @@ ActiveRecord::Schema.define(version: 20160810142633) do
   add_index "award_emoji", ["user_id", "name"], name: "index_award_emoji_on_user_id_and_name", using: :btree
   add_index "award_emoji", ["user_id"], name: "index_award_emoji_on_user_id", using: :btree
 
+  create_table "boards", force: :cascade do |t|
+    t.integer  "project_id", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
+  add_index "boards", ["project_id"], name: "index_boards_on_project_id", using: :btree
+
   create_table "broadcast_messages", force: :cascade do |t|
     t.text     "message",    null: false
     t.datetime "starts_at"
@@ -533,6 +541,19 @@ ActiveRecord::Schema.define(version: 20160810142633) do
 
   add_index "lfs_objects_projects", ["project_id"], name: "index_lfs_objects_projects_on_project_id", using: :btree
 
+  create_table "lists", force: :cascade do |t|
+    t.integer  "board_id",               null: false
+    t.integer  "label_id"
+    t.integer  "list_type",  default: 1, null: false
+    t.integer  "position"
+    t.datetime "created_at",             null: false
+    t.datetime "updated_at",             null: false
+  end
+
+  add_index "lists", ["board_id", "label_id"], name: "index_lists_on_board_id_and_label_id", unique: true, using: :btree
+  add_index "lists", ["board_id"], name: "index_lists_on_board_id", using: :btree
+  add_index "lists", ["label_id"], name: "index_lists_on_label_id", using: :btree
+
   create_table "members", force: :cascade do |t|
     t.integer  "access_level",       null: false
     t.integer  "source_id",          null: false
@@ -1114,6 +1135,9 @@ ActiveRecord::Schema.define(version: 20160810142633) do
 
   add_index "web_hooks", ["project_id"], name: "index_web_hooks_on_project_id", using: :btree
 
+  add_foreign_key "boards", "projects"
+  add_foreign_key "lists", "boards"
+  add_foreign_key "lists", "labels"
   add_foreign_key "personal_access_tokens", "users"
   add_foreign_key "protected_branch_merge_access_levels", "protected_branches"
   add_foreign_key "protected_branch_push_access_levels", "protected_branches"

spec/controllers/projects/boards/issues_controller_spec.rb

+require 'spec_helper'
+
+describe Projects::Boards::IssuesController do
+  let(:project) { create(:project_with_board) }
+  let(:user)    { create(:user) }
+
+  let(:planning)    { create(:label, project: project, name: 'Planning') }
+  let(:development) { create(:label, project: project, name: 'Development') }
+
+  let!(:list1) { create(:list, board: project.board, label: planning, position: 0) }
+  let!(:list2) { create(:list, board: project.board, label: development, position: 1) }
+
+  before do
+    project.team << [user, :master]
+  end
+
+  describe 'GET index' do
+    context 'with valid list id' do
+      it 'returns issues that have the list label applied' do
+        johndoe = create(:user, avatar: fixture_file_upload(File.join(Rails.root, 'spec/fixtures/dk.png')))
+        create(:labeled_issue, project: project, labels: [planning])
+        create(:labeled_issue, project: project, labels: [development])
+        create(:labeled_issue, project: project, labels: [development], assignee: johndoe)
+
+        list_issues user: user, list_id: list2
+
+        parsed_response = JSON.parse(response.body)
+
+        expect(response).to match_response_schema('issues')
+        expect(parsed_response.length).to eq 2
+      end
+    end
+
+    context 'with invalid list id' do
+      it 'returns a not found 404 response' do
+        list_issues user: user, list_id: 999
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'with unauthorized user' do
+      before do
+        allow(Ability.abilities).to receive(:allowed?).with(user, :read_project, project).and_return(true)
+        allow(Ability.abilities).to receive(:allowed?).with(user, :read_issue, project).and_return(false)
+      end
+
+      it 'returns a successful 403 response' do
+        list_issues user: user, list_id: list2
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    def list_issues(user:, list_id:)
+      sign_in(user)
+
+      get :index, namespace_id: project.namespace.to_param,
+                  project_id: project.to_param,
+                  list_id: list_id.to_param
+    end
+  end
+
+  describe 'PATCH update' do
+    let(:issue) { create(:labeled_issue, project: project, labels: [planning]) }
+
+    context 'with valid params' do
+      it 'returns a successful 200 response' do
+        move user: user, issue: issue, from_list_id: list1.id, to_list_id: list2.id
+
+        expect(response).to have_http_status(200)
+      end
+
+      it 'moves issue to the desired list' do
+        move user: user, issue: issue, from_list_id: list1.id, to_list_id: list2.id
+
+        expect(issue.reload.labels).to contain_exactly(development)
+      end
+    end
+
+    context 'with invalid params' do
+      it 'returns a unprocessable entity 422 response for invalid lists' do
+        move user: user, issue: issue, from_list_id: nil, to_list_id: nil
+
+        expect(response).to have_http_status(422)
+      end
+
+      it 'returns a not found 404 response for invalid issue id' do
+        move user: user, issue: 999, from_list_id: list1.id, to_list_id: list2.id
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'with unauthorized user' do
+      let(:guest) { create(:user) }
+
+      before do
+        project.team << [guest, :guest]
+      end
+
+      it 'returns a successful 403 response' do
+        move user: guest, issue: issue, from_list_id: list1.id, to_list_id: list2.id
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    def move(user:, issue:, from_list_id:, to_list_id:)
+      sign_in(user)
+
+      patch :update, namespace_id: project.namespace.to_param,
+                     project_id: project.to_param,
+                     id: issue.to_param,
+                     from_list_id: from_list_id,
+                     to_list_id: to_list_id,
+                     format: :json
+    end
+  end
+end

spec/controllers/projects/boards/lists_controller_spec.rb

+require 'spec_helper'
+
+describe Projects::Boards::ListsController do
+  let(:project) { create(:project_with_board) }
+  let(:board)   { project.board }
+  let(:user)    { create(:user) }
+  let(:guest)   { create(:user) }
+
+  before do
+    project.team << [user, :master]
+    project.team << [guest, :guest]
+  end
+
+  describe 'GET index' do
+    it 'returns a successful 200 response' do
+      read_board_list user: user
+
+      expect(response).to have_http_status(200)
+      expect(response.content_type).to eq 'application/json'
+    end
+
+    it 'returns a list of board lists' do
+      board = project.create_board
+      create(:backlog_list, board: board)
+      create(:list, board: board)
+      create(:done_list, board: board)
+
+      read_board_list user: user
+
+      parsed_response = JSON.parse(response.body)
+
+      expect(response).to match_response_schema('lists')
+      expect(parsed_response.length).to eq 3
+    end
+
+    context 'with unauthorized user' do
+      before do
+        allow(Ability.abilities).to receive(:allowed?).with(user, :read_project, project).and_return(true)
+        allow(Ability.abilities).to receive(:allowed?).with(user, :read_list, project).and_return(false)
+      end
+
+      it 'returns a successful 403 response' do
+        read_board_list user: user
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    def read_board_list(user:)
+      sign_in(user)
+
+      get :index, namespace_id: project.namespace.to_param,
+                  project_id: project.to_param,
+                  format: :json
+    end
+  end
+
+  describe 'POST create' do
+    let(:label) { create(:label, project: project, name: 'Development') }
+
+    context 'with valid params' do
+      it 'returns a successful 200 response' do
+        create_board_list user: user, label_id: label.id
+
+        expect(response).to have_http_status(200)
+      end
+
+      it 'returns the created list' do
+        create_board_list user: user, label_id: label.id
+
+        expect(response).to match_response_schema('list')
+      end
+    end
+
+    context 'with invalid params' do
+      it 'returns an error' do
+        create_board_list user: user, label_id: nil
+
+        parsed_response = JSON.parse(response.body)
+
+        expect(parsed_response['label']).to contain_exactly "can't be blank"
+        expect(response).to have_http_status(422)
+      end
+    end
+
+    context 'with unauthorized user' do
+      let(:label) { create(:label, project: project, name: 'Development') }
+
+      it 'returns a successful 403 response' do
+        create_board_list user: guest, label_id: label.id
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    def create_board_list(user:, label_id:)
+      sign_in(user)
+
+      post :create, namespace_id: project.namespace.to_param,
+                    project_id: project.to_param,
+                    list: { label_id: label_id },
+                    format: :json
+    end
+  end
+
+  describe 'PATCH update' do
+    let!(:planning)    { create(:list, board: board, position: 0) }
+    let!(:development) { create(:list, board: board, position: 1) }
+
+    context 'with valid position' do
+      it 'returns a successful 200 response' do
+        move user: user, list: planning, position: 1
+
+        expect(response).to have_http_status(200)
+      end
+
+      it 'moves the list to the desired position' do
+        move user: user, list: planning, position: 1
+
+        expect(planning.reload.position).to eq 1
+      end
+    end
+
+    context 'with invalid position' do
+      it 'returns a unprocessable entity 422 response' do
+        move user: user, list: planning, position: 6
+
+        expect(response).to have_http_status(422)
+      end
+    end
+
+    context 'with invalid list id' do
+      it 'returns a not found 404 response' do
+        move user: user, list: 999, position: 1
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'with unauthorized user' do
+      it 'returns a successful 403 response' do
+        move user: guest, list: planning, position: 6
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    def move(user:, list:, position:)
+      sign_in(user)
+
+      patch :update, namespace_id: project.namespace.to_param,
+                     project_id: project.to_param,
+                     id: list.to_param,
+                     list: { position: position },
+                     format: :json
+    end
+  end
+
+  describe 'DELETE destroy' do
+    let!(:planning) { create(:list, board: board, position: 0) }
+
+    context 'with valid list id' do
+      it 'returns a successful 200 response' do
+        remove_board_list user: user, list: planning
+
+        expect(response).to have_http_status(200)
+      end
+
+      it 'removes list from board' do
+        expect { remove_board_list user: user, list: planning }.to change(board.lists, :size).by(-1)
+      end
+    end
+
+    context 'with invalid list id' do
+      it 'returns a not found 404 response' do
+        remove_board_list user: user, list: 999
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'with unauthorized user' do
+      it 'returns a successful 403 response' do
+        remove_board_list user: guest, list: planning
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    def remove_board_list(user:, list:)
+      sign_in(user)
+
+      delete :destroy, namespace_id: project.namespace.to_param,
+                       project_id: project.to_param,
+                       id: list.to_param,
+                       format: :json
+    end
+  end
+
+  describe 'POST generate' do
+    context 'when board lists is empty' do
+      it 'returns a successful 200 response' do
+        generate_default_board_lists user: user
+
+        expect(response).to have_http_status(200)
+      end
+
+      it 'returns the defaults lists' do
+        generate_default_board_lists user: user
+
+        expect(response).to match_response_schema('lists')
+      end
+    end
+
+    context 'when board lists is not empty' do
+      it 'returns a unprocessable entity 422 response' do
+        create(:list, board: board)
+
+        generate_default_board_lists user: user
+
+        expect(response).to have_http_status(422)
+      end
+    end
+
+    context 'with unauthorized user' do
+      it 'returns a successful 403 response' do
+        generate_default_board_lists user: guest
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    def generate_default_board_lists(user:)
+      sign_in(user)
+
+      post :generate, namespace_id: project.namespace.to_param,
+                      project_id: project.to_param,
+                      format: :json
+    end
+  end
+end

spec/controllers/projects/boards_controller_spec.rb

+require 'spec_helper'
+
+describe Projects::BoardsController do
+  let(:project) { create(:empty_project) }
+  let(:user)    { create(:user) }
+
+  before do
+    project.team << [user, :master]
+    sign_in(user)
+  end
+
+  describe 'GET show' do
+    it 'creates a new board when project does not have one' do
+      expect { read_board }.to change(Board, :count).by(1)
+    end
+
+    it 'renders HTML template' do
+      read_board
+
+      expect(response).to render_template :show
+      expect(response.content_type).to eq 'text/html'
+    end
+
+    context 'with unauthorized user' do
+      before do
+        allow(Ability.abilities).to receive(:allowed?).with(user, :read_project, project).and_return(true)
+        allow(Ability.abilities).to receive(:allowed?).with(user, :read_board, project).and_return(false)
+      end
+
+      it 'returns a successful 404 response' do
+        read_board
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    def read_board(format: :html)
+      get :show, namespace_id: project.namespace.to_param,
+                 project_id: project.to_param,
+                 format: format
+    end
+  end
+end

spec/factories/boards.rb

+FactoryGirl.define do
+  factory :board do
+    project factory: :empty_project
+  end
+end

spec/factories/lists.rb

+FactoryGirl.define do
+  factory :list do
+    board
+    label
+    list_type :label
+    sequence(:position)
+  end
+
+  factory :backlog_list, parent: :list do
+    list_type :backlog
+    label nil
+    position nil
+  end
+
+  factory :done_list, parent: :list do
+    list_type :done
+    label nil
+    position nil
+  end
+end

spec/factories/projects.rb

@@ -83,4 +83,10 @@ FactoryGirl.define do
       )
     end
   end
+
+  factory :project_with_board, parent: :empty_project do
+    after(:create) do |project|
+      project.create_board
+    end
+  end
 end

spec/features/boards/boards_spec.rb

+require 'rails_helper'
+
+describe 'Issue Boards', feature: true, js: true do
+  include WaitForAjax
+
+  let(:project) { create(:empty_project, :public) }
+  let(:user)    { create(:user) }
+  let!(:user2)  { create(:user) }
+
+  before do
+    project.create_board
+    project.board.lists.create(list_type: :backlog)
+    project.board.lists.create(list_type: :done)
+
+    project.team << [user, :master]
+    project.team << [user2, :master]
+
+    login_as(user)
+  end
+
+  context 'no lists' do
+    before do
+      visit namespace_project_board_path(project.namespace, project)
+      wait_for_vue_resource
+      expect(page).to have_selector('.board', count: 3)
+    end
+
+    it 'shows blank state' do
+      expect(page).to have_content('Welcome to your Issue Board!')
+    end
+
+    it 'hides the blank state when clicking nevermind button' do
+      page.within(find('.board-blank-state')) do
+        click_button("Nevermind, I'll use my own")
+      end
+      expect(page).to have_selector('.board', count: 2)
+    end
+
+    it 'creates default lists' do
+      lists = ['Backlog', 'Development', 'Testing', 'Production', 'Ready', 'Done']
+
+      page.within(find('.board-blank-state')) do
+        click_button('Add default lists')
+      end
+      wait_for_vue_resource
+
+      expect(page).to have_selector('.board', count: 6)
+
+      page.all('.board').each_with_index do |list, i|
+        expect(list.find('.board-title')).to have_content(lists[i])
+      end
+    end
+  end
+
+  context 'with lists' do
+    let(:milestone) { create(:milestone, project: project) }
+
+    let(:planning)    { create(:label, project: project, name: 'Planning') }
+    let(:development) { create(:label, project: project, name: 'Development') }
+    let(:testing)     { create(:label, project: project, name: 'Testing') }
+    let(:bug)         { create(:label, project: project, name: 'Bug') }
+    let!(:backlog)    { create(:label, project: project, name: 'Backlog') }
+    let!(:done)       { create(:label, project: project, name: 'Done') }
+
+    let!(:list1) { create(:list, board: project.board, label: planning, position: 0) }
+    let!(:list2) { create(:list, board: project.board, label: development, position: 1) }
+
+    let!(:confidential_issue) { create(:issue, :confidential, project: project, author: user) }
+    let!(:issue1) { create(:issue, project: project, assignee: user) }
+    let!(:issue2) { create(:issue, project: project, author: user2) }
+    let!(:issue3) { create(:issue, project: project) }
+    let!(:issue4) { create(:issue, project: project) }
+    let!(:issue5) { create(:labeled_issue, project: project, labels: [planning], milestone: milestone) }
+    let!(:issue6) { create(:labeled_issue, project: project, labels: [planning, development]) }
+    let!(:issue7) { create(:labeled_issue, project: project, labels: [development]) }
+    let!(:issue8) { create(:closed_issue, project: project) }
+    let!(:issue9) { create(:labeled_issue, project: project, labels: [testing, bug]) }
+
+    before do
+      visit namespace_project_board_path(project.namespace, project)
+
+      wait_for_vue_resource
+
+      expect(page).to have_selector('.board', count: 4)
+      expect(find('.board:nth-child(1)')).to have_selector('.card')
+      expect(find('.board:nth-child(2)')).to have_selector('.card')
+      expect(find('.board:nth-child(3)')).to have_selector('.card')
+      expect(find('.board:nth-child(4)')).to have_selector('.card')
+    end
+
+    it 'shows lists' do
+      expect(page).to have_selector('.board', count: 4)
+    end
+
+    it 'shows issues in lists' do
+      page.within(find('.board:nth-child(2)')) do
+        expect(page.find('.board-header')).to have_content('2')
+        expect(page).to have_selector('.card', count: 2)
+      end
+
+      page.within(find('.board:nth-child(3)')) do
+        expect(page.find('.board-header')).to have_content('2')
+        expect(page).to have_selector('.card', count: 2)
+      end
+    end
+
+    it 'shows confidential issues with icon' do
+      page.within(find('.board', match: :first)) do
+        expect(page).to have_selector('.confidential-icon', count: 1)
+      end
+    end
+
+    it 'allows user to delete board' do
+      page.within(find('.board:nth-child(2)')) do
+        find('.board-delete').click
+      end
+
+      wait_for_vue_resource
+
+      expect(page).to have_selector('.board', count: 3)
+    end
+
+    it 'removes checkmark in new list dropdown after deleting' do
+      click_button 'Create new list'
+      wait_for_ajax
+
+      page.within(find('.board:nth-child(2)')) do
+        find('.board-delete').click
+      end
+
+      wait_for_vue_resource
+
+      expect(page).to have_selector('.board', count: 3)
+      expect(find(".js-board-list-#{planning.id}", visible: false)).not_to have_css('.is-active')
+    end
+
+    it 'infinite scrolls list' do
+      50.times do
+        create(:issue, project: project)
+      end
+
+      visit namespace_project_board_path(project.namespace, project)
+      wait_for_vue_resource
+
+      page.within(find('.board', match: :first)) do
+        expect(page.find('.board-header')).to have_content('20')
+        expect(page).to have_selector('.card', count: 20)
+
+        evaluate_script("document.querySelectorAll('.board .board-list')[0].scrollTop = document.querySelectorAll('.board .board-list')[0].scrollHeight")
+
+        expect(page.find('.board-header')).to have_content('40')
+        expect(page).to have_selector('.card', count: 40)
+      end
+    end
+
+    context 'backlog' do
+      it 'shows issues in backlog with no labels' do
+        page.within(find('.board', match: :first)) do
+          expect(page.find('.board-header')).to have_content('6')
+          expect(page).to have_selector('.card', count: 6)
+        end
+      end
+
+      it 'is searchable' do
+        page.within(find('.board', match: :first)) do
+          find('.form-control').set issue1.title
+
+          expect(page).to have_selector('.card', count: 1)
+        end
+      end
+
+      it 'clears search' do
+        page.within(find('.board', match: :first)) do
+          find('.form-control').set issue1.title
+
+          expect(page).to have_selector('.card', count: 1)
+
+          find('.board-search-clear-btn').click
+
+          expect(page).to have_selector('.card', count: 6)
+        end
+      end
+
+      it 'moves issue from backlog into list' do
+        drag_to(list_to_index: 1)
+
+        page.within(find('.board', match: :first)) do
+          expect(page.find('.board-header')).to have_content('5')
+          expect(page).to have_selector('.card', count: 5)
+        end
+
+        page.within(find('.board:nth-child(2)')) do
+          expect(page.find('.board-header')).to have_content('3')
+          expect(page).to have_selector('.card', count: 3)
+        end
+      end
+    end
+
+    context 'done' do
+      it 'shows list of done issues' do
+        expect(find('.board:nth-child(4)')).to have_selector('.card', count: 1)
+      end
+
+      it 'moves issue to done' do
+        drag_to(list_from_index: 0, list_to_index: 3)
+
+        expect(find('.board:nth-child(4)')).to have_selector('.card', count: 2)
+        expect(find('.board:nth-child(4)')).to have_content(issue9.title)
+        expect(find('.board:nth-child(4)')).not_to have_content(planning.title)
+      end
+
+      it 'removes all of the same issue to done' do
+        drag_to(list_from_index: 1, list_to_index: 3)
+
+        expect(find('.board:nth-child(2)')).to have_selector('.card', count: 1)
+        expect(find('.board:nth-child(3)')).to have_selector('.card', count: 1)
+        expect(find('.board:nth-child(4)')).to have_content(issue6.title)
+        expect(find('.board:nth-child(4)')).not_to have_content(planning.title)
+      end
+    end
+
+    context 'lists' do
+      it 'changes position of list' do
+        drag_to(list_from_index: 1, list_to_index: 2, selector: '.board-header')
+
+        expect(find('.board:nth-child(2)')).to have_content(development.title)
+        expect(find('.board:nth-child(2)')).to have_content(planning.title)
+      end
+
+      it 'issue moves between lists' do
+        drag_to(list_from_index: 1, card_index: 1, list_to_index: 2)
+
+        expect(find('.board:nth-child(2)')).to have_selector('.card', count: 1)
+        expect(find('.board:nth-child(3)')).to have_selector('.card', count: 3)
+        expect(find('.board:nth-child(3)')).to have_content(issue6.title)
+        expect(find('.board:nth-child(3)').all('.card').last).not_to have_content(development.title)
+      end
+
+      it 'issue moves between lists' do
+        drag_to(list_from_index: 2, list_to_index: 1)
+
+        expect(find('.board:nth-child(2)')).to have_selector('.card', count: 3)
+        expect(find('.board:nth-child(3)')).to have_selector('.card', count: 1)
+        expect(find('.board:nth-child(2)')).to have_content(issue7.title)
+        expect(find('.board:nth-child(2)').all('.card').first).not_to have_content(planning.title)
+      end
+
+      it 'issue moves from done' do
+        drag_to(list_from_index: 3, list_to_index: 1)
+
+        expect(find('.board:nth-child(2)')).to have_selector('.card', count: 3)
+        expect(find('.board:nth-child(2)')).to have_content(issue8.title)
+      end
+
+      context 'issue card' do
+        it 'shows assignee' do
+          page.within(find('.board', match: :first)) do
+            expect(page).to have_selector('.avatar', count: 1)
+          end
+        end
+      end
+
+      context 'new list' do
+        it 'shows all labels in new list dropdown' do
+          click_button 'Create new list'
+
+          page.within('.dropdown-menu-issues-board-new') do
+            expect(page).to have_content(planning.title)
+            expect(page).to have_content(development.title)
+            expect(page).to have_content(testing.title)
+          end
+        end
+
+        it 'creates new list for label' do
+          click_button 'Create new list'
+
+          page.within('.dropdown-menu-issues-board-new') do
+            click_link testing.title
+          end
+
+          wait_for_vue_resource
+
+          expect(page).to have_selector('.board', count: 5)
+        end
+
+        it 'creates new list for Backlog label' do
+          click_button 'Create new list'
+
+          page.within('.dropdown-menu-issues-board-new') do
+            click_link backlog.title
+          end
+
+          wait_for_vue_resource
+
+          expect(page).to have_selector('.board', count: 5)
+        end
+
+        it 'creates new list for Done label' do
+          click_button 'Create new list'
+
+          page.within('.dropdown-menu-issues-board-new') do
+            click_link done.title
+          end
+
+          wait_for_vue_resource
+
+          expect(page).to have_selector('.board', count: 5)
+        end
+
+        it 'moves issues from backlog into new list' do
+          page.within(find('.board', match: :first)) do
+            expect(page.find('.board-header')).to have_content('6')
+            expect(page).to have_selector('.card', count: 6)
+          end
+
+          click_button 'Create new list'
+
+          page.within('.dropdown-menu-issues-board-new') do
+            click_link testing.title
+          end
+
+          wait_for_vue_resource
+
+          page.within(find('.board', match: :first)) do
+            expect(page.find('.board-header')).to have_content('5')
+            expect(page).to have_selector('.card', count: 5)
+          end
+        end
+      end
+    end
+
+    context 'filtering' do
+      it 'filters by author' do
+        page.within '.issues-filters' do
+          click_button('Author')
+
+          page.within '.dropdown-menu-author' do
+            click_link(user2.name)
+          end
+          wait_for_vue_resource(spinner: false)
+
+          expect(find('.js-author-search')).to have_content(user2.name)
+        end
+
+        wait_for_vue_resource
+
+        page.within(find('.board', match: :first)) do
+          expect(page.find('.board-header')).to have_content('1')
+          expect(page).to have_selector('.card', count: 1)
+        end
+
+        page.within(find('.board:nth-child(2)')) do
+          expect(page.find('.board-header')).to have_content('0')
+          expect(page).to have_selector('.card', count: 0)
+        end
+      end
+
+      it 'filters by assignee' do
+        page.within '.issues-filters' do
+          click_button('Assignee')
+
+          page.within '.dropdown-menu-assignee' do
+            click_link(user.name)
+          end
+          wait_for_vue_resource(spinner: false)
+
+          expect(find('.js-assignee-search')).to have_content(user.name)
+        end
+
+        wait_for_vue_resource
+
+        page.within(find('.board', match: :first)) do
+          expect(page.find('.board-header')).to have_content('1')
+          expect(page).to have_selector('.card', count: 1)
+        end
+
+        page.within(find('.board:nth-child(2)')) do
+          expect(page.find('.board-header')).to have_content('0')
+          expect(page).to have_selector('.card', count: 0)
+        end
+      end
+
+      it 'filters by milestone' do
+        page.within '.issues-filters' do
+          click_button('Milestone')
+
+          page.within '.milestone-filter' do
+            click_link(milestone.title)
+          end
+          wait_for_vue_resource(spinner: false)
+
+          expect(find('.js-milestone-select')).to have_content(milestone.title)
+        end
+
+        wait_for_vue_resource
+
+        page.within(find('.board', match: :first)) do
+          expect(page.find('.board-header')).to have_content('0')
+          expect(page).to have_selector('.card', count: 0)
+        end
+
+        page.within(find('.board:nth-child(2)')) do
+          expect(page.find('.board-header')).to have_content('1')
+          expect(page).to have_selector('.card', count: 1)
+        end
+      end
+
+      it 'filters by label' do
+        page.within '.issues-filters' do
+          click_button('Label')
+
+          page.within '.dropdown-menu-labels' do
+            click_link(testing.title)
+            wait_for_vue_resource(spinner: false)
+            find('.dropdown-menu-close').click
+          end
+        end
+
+        wait_for_vue_resource
+
+        page.within(find('.board', match: :first)) do
+          expect(page.find('.board-header')).to have_content('1')
+          expect(page).to have_selector('.card', count: 1)
+        end
+
+        page.within(find('.board:nth-child(2)')) do
+          expect(page.find('.board-header')).to have_content('0')
+          expect(page).to have_selector('.card', count: 0)
+        end
+      end
+
+      it 'infinite scrolls list with label filter' do
+        50.times do
+          create(:labeled_issue, project: project, labels: [testing])
+        end
+
+        page.within '.issues-filters' do
+          click_button('Label')
+
+          page.within '.dropdown-menu-labels' do
+            click_link(testing.title)
+            wait_for_vue_resource(spinner: false)
+            find('.dropdown-menu-close').click
+          end
+        end
+
+        wait_for_vue_resource
+
+        page.within(find('.board', match: :first)) do
+          expect(page.find('.board-header')).to have_content('20')
+          expect(page).to have_selector('.card', count: 20)
+
+          evaluate_script("document.querySelectorAll('.board .board-list')[0].scrollTop = document.querySelectorAll('.board .board-list')[0].scrollHeight")
+
+          expect(page.find('.board-header')).to have_content('40')
+          expect(page).to have_selector('.card', count: 40)
+        end
+      end
+
+      it 'filters by multiple labels' do
+        page.within '.issues-filters' do
+          click_button('Label')
+
+          page.within '.dropdown-menu-labels' do
+            click_link(testing.title)
+            wait_for_vue_resource(spinner: false)
+            click_link(bug.title)
+            wait_for_vue_resource(spinner: false)
+            find('.dropdown-menu-close').click
+          end
+        end
+
+        wait_for_vue_resource
+
+        page.within(find('.board', match: :first)) do
+          expect(page.find('.board-header')).to have_content('1')
+          expect(page).to have_selector('.card', count: 1)
+        end
+
+        page.within(find('.board:nth-child(2)')) do
+          expect(page.find('.board-header')).to have_content('0')
+          expect(page).to have_selector('.card', count: 0)
+        end
+      end
+
+      it 'filters by no label' do
+        page.within '.issues-filters' do
+          click_button('Label')
+
+          page.within '.dropdown-menu-labels' do
+            click_link("No Label")
+            wait_for_vue_resource(spinner: false)
+            find('.dropdown-menu-close').click
+          end
+        end
+
+        wait_for_vue_resource
+
+        page.within(find('.board', match: :first)) do
+          expect(page.find('.board-header')).to have_content('5')
+          expect(page).to have_selector('.card', count: 5)
+        end
+
+        page.within(find('.board:nth-child(2)')) do
+          expect(page.find('.board-header')).to have_content('0')
+          expect(page).to have_selector('.card', count: 0)
+        end
+      end
+
+      it 'filters by clicking label button on issue' do
+        page.within(find('.board', match: :first)) do
+          expect(page).to have_selector('.card', count: 6)
+          click_button(bug.title)
+          wait_for_vue_resource(spinner: false)
+        end
+
+        page.within(find('.board', match: :first)) do
+          expect(page.find('.board-header')).to have_content('1')
+          expect(page).to have_selector('.card', count: 1)
+        end
+
+        page.within(find('.board:nth-child(2)')) do
+          expect(page.find('.board-header')).to have_content('0')
+          expect(page).to have_selector('.card', count: 0)
+        end
+
+        page.within('.labels-filter') do
+          expect(find('.dropdown-toggle-text')).to have_content(bug.title)
+        end
+      end
+
+      it 'removes label filter by clicking label button on issue' do
+        page.within(find('.board', match: :first)) do
+          page.within(find('.card', match: :first)) do
+            click_button(bug.title)
+          end
+          wait_for_vue_resource(spinner: false)
+
+          expect(page).to have_selector('.card', count: 1)
+        end
+
+        wait_for_vue_resource
+
+        page.within('.labels-filter') do
+          expect(find('.dropdown-toggle-text')).to have_content(bug.title)
+        end
+      end
+    end
+  end
+
+  context 'signed out user' do
+    before do
+      logout
+      visit namespace_project_board_path(project.namespace, project)
+      wait_for_vue_resource
+    end
+
+    it 'does not show create new list' do
+      expect(page).not_to have_selector('.js-new-board-list')
+    end
+  end
+
+  context 'as guest user' do
+    let(:user_guest) { create(:user) }
+
+    before do
+      project.team << [user_guest, :guest]
+      logout
+      login_as(user_guest)
+      visit namespace_project_board_path(project.namespace, project)
+      wait_for_vue_resource
+    end
+
+    it 'does not show create new list' do
+      expect(page).not_to have_selector('.js-new-board-list')
+    end
+  end
+
+  def drag_to(list_from_index: 0, card_index: 0, to_index: 0, list_to_index: 0, selector: '.board-list')
+    evaluate_script("simulateDrag({scrollable: document.getElementById('board-app'), from: {el: $('#{selector}').eq(#{list_from_index}).get(0), index: #{card_index}}, to: {el: $('.board-list').eq(#{list_to_index}).get(0), index: #{to_index}}});")
+
+    Timeout.timeout(Capybara.default_max_wait_time) do
+      loop until page.evaluate_script('window.SIMULATE_DRAG_ACTIVE').zero?
+    end
+
+    wait_for_vue_resource
+  end
+
+  def wait_for_vue_resource(spinner: true)
+    Timeout.timeout(Capybara.default_max_wait_time) do
+      loop until page.evaluate_script('Vue.activeResources').zero?
+    end
+
+    if spinner
+      expect(find('.boards-list')).not_to have_selector('.fa-spinner')
+    end
+  end
+end

spec/fixtures/api/schemas/issue.json

+{
+  "type": "object",
+  "required" : [
+    "iid",
+    "title",
+    "confidential"
+  ],
+  "properties" : {
+    "iid": { "type": "integer" },
+    "title": { "type": "string" },
+    "confidential": { "type": "boolean" },
+    "labels": {
+      "type": ["array"],
+      "required": [
+        "id",
+        "color",
+        "description",
+        "title",
+        "priority"
+      ],
+      "properties": {
+        "id": { "type": "integer" },
+        "color": {
+          "type": "string",
+          "pattern": "^#[0-9A-Fa-f]{3}{1,2}+$"
+        },
+        "description": { "type": ["string", "null"] },
+        "title": { "type": "string" },
+        "priority": { "type": ["integer", "null"] }
+      }
+    },
+    "assignee": {
+      "id": { "type": "integet" },
+      "name": { "type": "string" },
+      "username": { "type": "string" },
+      "avatar_url": { "type": "uri" }
+    }
+  },
+  "additionalProperties": false
+}

spec/fixtures/api/schemas/issues.json

+{
+  "type": "array",
+  "items": { "$ref": "issue.json" }
+}

spec/fixtures/api/schemas/list.json

+{
+  "type": "object",
+  "required" : [
+    "id",
+    "list_type",
+    "title",
+    "position"
+  ],
+  "properties" : {
+    "id": { "type": "integer" },
+    "list_type": {
+      "type": "string",
+      "enum": ["backlog", "label", "done"]
+    },
+    "label": {
+      "type": ["object"],
+      "required": [
+        "id",
+        "color",
+        "description",
+        "title",
+        "priority"
+      ],
+      "properties": {
+        "id": { "type": "integer" },
+        "color": {
+          "type": "string",
+          "pattern": "^#[0-9A-Fa-f]{3}{1,2}+$"
+        },
+        "description": { "type": ["string", "null"] },
+        "title": { "type": "string" },
+        "priority": { "type": ["integer", "null"] }
+      }
+    },
+    "title": { "type": "string" },
+    "position": { "type": ["integer", "null"] }
+  },
+  "additionalProperties": false
+}

spec/fixtures/api/schemas/lists.json

+{
+  "type": "array",
+  "items": { "$ref": "list.json" }
+}

spec/javascripts/boards/boards_store_spec.js.es6

+//= require jquery
+//= require jquery_ujs
+//= require jquery.cookie
+//= require vue
+//= require vue-resource
+//= require lib/utils/url_utility
+//= require boards/models/issue
+//= require boards/models/label
+//= require boards/models/list
+//= require boards/models/user
+//= require boards/services/board_service
+//= require boards/stores/boards_store
+//= require ./mock_data
+
+(() => {
+  beforeEach(() => {
+    gl.boardService = new BoardService('/test/issue-boards/board');
+    gl.issueBoards.BoardsStore.create();
+
+    $.cookie('issue_board_welcome_hidden', 'false');
+  });
+
+  describe('Store', () => {
+    it('starts with a blank state', () => {
+      expect(gl.issueBoards.BoardsStore.state.lists.length).toBe(0);
+    });
+
+    describe('lists', () => {
+      it('creates new list without persisting to DB', () => {
+        gl.issueBoards.BoardsStore.addList(listObj);
+
+        expect(gl.issueBoards.BoardsStore.state.lists.length).toBe(1);
+      });
+
+      it('finds list by ID', () => {
+        gl.issueBoards.BoardsStore.addList(listObj);
+        const list = gl.issueBoards.BoardsStore.findList('id', 1);
+
+        expect(list.id).toBe(1);
+      });
+
+      it('finds list by type', () => {
+        gl.issueBoards.BoardsStore.addList(listObj);
+        const list = gl.issueBoards.BoardsStore.findList('type', 'label');
+
+        expect(list).toBeDefined();
+      });
+
+      it('finds list limited by type', () => {
+        gl.issueBoards.BoardsStore.addList({
+          id: 1,
+          position: 0,
+          title: 'Test',
+          list_type: 'backlog'
+        });
+        const list = gl.issueBoards.BoardsStore.findList('id', 1, 'backlog');
+
+        expect(list).toBeDefined();
+      });
+
+      it('gets issue when new list added', (done) => {
+        gl.issueBoards.BoardsStore.addList(listObj);
+        const list = gl.issueBoards.BoardsStore.findList('id', 1);
+
+        expect(gl.issueBoards.BoardsStore.state.lists.length).toBe(1);
+
+        setTimeout(() => {
+          expect(list.issues.length).toBe(1);
+          expect(list.issues[0].id).toBe(1);
+          done();
+        }, 0);
+      });
+
+      it('persists new list', (done) => {
+        gl.issueBoards.BoardsStore.new({
+          title: 'Test',
+          type: 'label',
+          label: {
+            id: 1,
+            title: 'Testing',
+            color: 'red',
+            description: 'testing;'
+          }
+        });
+        expect(gl.issueBoards.BoardsStore.state.lists.length).toBe(1);
+
+        setTimeout(() => {
+          const list = gl.issueBoards.BoardsStore.findList('id', 1);
+          expect(list).toBeDefined();
+          expect(list.id).toBe(1);
+          expect(list.position).toBe(0);
+          done();
+        }, 0);
+      });
+
+      it('check for blank state adding', () => {
+        expect(gl.issueBoards.BoardsStore.shouldAddBlankState()).toBe(true);
+      });
+
+      it('check for blank state not adding', () => {
+        gl.issueBoards.BoardsStore.addList(listObj);
+        expect(gl.issueBoards.BoardsStore.shouldAddBlankState()).toBe(false);
+      });
+
+      it('check for blank state adding when backlog & done list exist', () => {
+        gl.issueBoards.BoardsStore.addList({
+          list_type: 'backlog'
+        });
+        gl.issueBoards.BoardsStore.addList({
+          list_type: 'done'
+        });
+
+        expect(gl.issueBoards.BoardsStore.shouldAddBlankState()).toBe(true);
+      });
+
+      it('adds the blank state', () => {
+        gl.issueBoards.BoardsStore.addBlankState();
+
+        const list = gl.issueBoards.BoardsStore.findList('type', 'blank', 'blank');
+        expect(list).toBeDefined();
+      });
+
+      it('removes list from state', () => {
+        gl.issueBoards.BoardsStore.addList(listObj);
+
+        expect(gl.issueBoards.BoardsStore.state.lists.length).toBe(1);
+
+        gl.issueBoards.BoardsStore.removeList(1, 'label');
+
+        expect(gl.issueBoards.BoardsStore.state.lists.length).toBe(0);
+      });
+
+      it('moves the position of lists', () => {
+        const listOne = gl.issueBoards.BoardsStore.addList(listObj),
+              listTwo = gl.issueBoards.BoardsStore.addList(listObjDuplicate);
+
+        expect(gl.issueBoards.BoardsStore.state.lists.length).toBe(2);
+
+        gl.issueBoards.BoardsStore.moveList(listOne, ['2', '1']);
+
+        expect(listOne.position).toBe(1);
+      });
+
+      it('moves an issue from one list to another', (done) => {
+        const listOne = gl.issueBoards.BoardsStore.addList(listObj),
+              listTwo = gl.issueBoards.BoardsStore.addList(listObjDuplicate);
+
+        expect(gl.issueBoards.BoardsStore.state.lists.length).toBe(2);
+
+        setTimeout(() => {
+          expect(listOne.issues.length).toBe(1);
+          expect(listTwo.issues.length).toBe(1);
+
+          gl.issueBoards.BoardsStore.moveIssueToList(listOne, listTwo, listOne.findIssue(1));
+
+          expect(listOne.issues.length).toBe(0);
+          expect(listTwo.issues.length).toBe(1);
+
+          done();
+        }, 0);
+      });
+    });
+  });
+})();

spec/javascripts/boards/issue_spec.js.es6

+//= require jquery
+//= require jquery_ujs
+//= require jquery.cookie
+//= require vue
+//= require vue-resource
+//= require lib/utils/url_utility
+//= require boards/models/issue
+//= require boards/models/label
+//= require boards/models/list
+//= require boards/models/user
+//= require boards/services/board_service
+//= require boards/stores/boards_store
+//= require ./mock_data
+
+describe('Issue model', () => {
+  let issue;
+
+  beforeEach(() => {
+    gl.boardService = new BoardService('/test/issue-boards/board');
+    gl.issueBoards.BoardsStore.create();
+
+    issue = new ListIssue({
+      title: 'Testing',
+      iid: 1,
+      confidential: false,
+      labels: [{
+        id: 1,
+        title: 'test',
+        color: 'red',
+        description: 'testing'
+      }]
+    });
+  });
+
+  it('has label', () => {
+    expect(issue.labels.length).toBe(1);
+  });
+
+  it('add new label', () => {
+    issue.addLabel({
+      id: 2,
+      title: 'bug',
+      color: 'blue',
+      description: 'bugs!'
+    });
+    expect(issue.labels.length).toBe(2);
+  });
+
+  it('does not add existing label', () => {
+    issue.addLabel({
+      id: 2,
+      title: 'test',
+      color: 'blue',
+      description: 'bugs!'
+    });
+
+    expect(issue.labels.length).toBe(1);
+  });
+
+  it('finds label', () => {
+    const label = issue.findLabel(issue.labels[0]);
+    expect(label).toBeDefined();
+  });
+
+  it('removes label', () => {
+    const label = issue.findLabel(issue.labels[0]);
+    issue.removeLabel(label);
+    expect(issue.labels.length).toBe(0);
+  });
+
+  it('removes multiple labels', () => {
+    issue.addLabel({
+      id: 2,
+      title: 'bug',
+      color: 'blue',
+      description: 'bugs!'
+    });
+    expect(issue.labels.length).toBe(2);
+
+    issue.removeLabels([issue.labels[0], issue.labels[1]]);
+    expect(issue.labels.length).toBe(0);
+  });
+});

spec/javascripts/boards/list_spec.js.es6

+//= require jquery
+//= require jquery_ujs
+//= require jquery.cookie
+//= require vue
+//= require vue-resource
+//= require lib/utils/url_utility
+//= require boards/models/issue
+//= require boards/models/label
+//= require boards/models/list
+//= require boards/models/user
+//= require boards/services/board_service
+//= require boards/stores/boards_store
+//= require ./mock_data
+
+describe('List model', () => {
+  let list;
+
+  beforeEach(() => {
+    gl.boardService = new BoardService('/test/issue-boards/board');
+    gl.issueBoards.BoardsStore.create();
+
+    list = new List(listObj);
+  });
+
+  it('gets issues when created', (done) => {
+    setTimeout(() => {
+      expect(list.issues.length).toBe(1);
+      done();
+    }, 0);
+  });
+
+  it('saves list and returns ID', (done) => {
+    list = new List({
+      title: 'test',
+      label: {
+        id: 1,
+        title: 'test',
+        color: 'red'
+      }
+    });
+    list.save();
+
+    setTimeout(() => {
+      expect(list.id).toBe(1);
+      expect(list.type).toBe('label');
+      expect(list.position).toBe(0);
+      done();
+    }, 0);
+  });
+
+  it('destroys the list', (done) => {
+    gl.issueBoards.BoardsStore.addList(listObj);
+    list = gl.issueBoards.BoardsStore.findList('id', 1);
+    expect(gl.issueBoards.BoardsStore.state.lists.length).toBe(1);
+    list.destroy();
+
+    setTimeout(() => {
+      expect(gl.issueBoards.BoardsStore.state.lists.length).toBe(0);
+      done();
+    }, 0);
+  });
+
+  it('can\'t search when not backlog', () => {
+    expect(list.canSearch()).toBe(false);
+  });
+
+  it('can search when backlog', () => {
+    list.type = 'backlog';
+    expect(list.canSearch()).toBe(true);
+  });
+
+  it('gets issue from list', (done) => {
+    setTimeout(() => {
+      const issue = list.findIssue(1);
+      expect(issue).toBeDefined();
+      done();
+    }, 0);
+  });
+
+  it('removes issue', (done) => {
+    setTimeout(() => {
+      const issue = list.findIssue(1);
+      expect(list.issues.length).toBe(1);
+      list.removeIssue(issue);
+      expect(list.issues.length).toBe(0);
+      done();
+    }, 0);
+  });
+});

spec/javascripts/boards/mock_data.js.es6

+const listObj = {
+  id: 1,
+  position: 0,
+  title: 'Test',
+  list_type: 'label',
+  label: {
+    id: 1,
+    title: 'Testing',
+    color: 'red',
+    description: 'testing;'
+  }
+};
+
+const listObjDuplicate = {
+  id: 2,
+  position: 1,
+  title: 'Test',
+  list_type: 'label',
+  label: {
+    id: 2,
+    title: 'Testing',
+    color: 'red',
+    description: 'testing;'
+  }
+};
+
+const BoardsMockData = {
+  'GET': {
+    '/test/issue-boards/board/lists{/id}/issues': [{
+      title: 'Testing',
+      iid: 1,
+      confidential: false,
+      labels: []
+    }]
+  },
+  'POST': {
+    '/test/issue-boards/board/lists{/id}': listObj
+  },
+  'PUT': {
+    '/test/issue-boards/board/lists{/id}': {}
+  },
+  'DELETE': {
+    '/test/issue-boards/board/lists{/id}': {}
+  }
+};
+
+Vue.http.interceptors.push((request, next) => {
+  const body = BoardsMockData[request.method][request.url];
+
+  next(request.respondWith(JSON.stringify(body), {
+    status: 200
+  }));
+});

spec/models/board_spec.rb

+require 'rails_helper'
+
+describe Board do
+  describe 'relationships' do
+    it { is_expected.to belong_to(:project) }
+    it { is_expected.to have_many(:lists).order(list_type: :asc, position: :asc).dependent(:delete_all) }
+  end
+
+  describe 'validations' do
+    it { is_expected.to validate_presence_of(:project) }
+  end
+end

spec/models/label_spec.rb

@@ -5,8 +5,10 @@ describe Label, models: true do
 
   describe 'associations' do
     it { is_expected.to belong_to(:project) }
+
     it { is_expected.to have_many(:label_links).dependent(:destroy) }
     it { is_expected.to have_many(:issues).through(:label_links).source(:target) }
+    it { is_expected.to have_many(:lists).dependent(:destroy) }
   end
 
   describe 'modules' do

spec/models/list_spec.rb

+require 'rails_helper'
+
+describe List do
+  describe 'relationships' do
+    it { is_expected.to belong_to(:board) }
+    it { is_expected.to belong_to(:label) }
+  end
+
+  describe 'validations' do
+    it { is_expected.to validate_presence_of(:board) }
+    it { is_expected.to validate_presence_of(:label) }
+    it { is_expected.to validate_presence_of(:list_type) }
+    it { is_expected.to validate_presence_of(:position) }
+    it { is_expected.to validate_numericality_of(:position).only_integer.is_greater_than_or_equal_to(0) }
+
+    it 'validates uniqueness of label scoped to board_id' do
+      create(:list)
+
+      expect(subject).to validate_uniqueness_of(:label_id).scoped_to(:board_id)
+    end
+
+    context 'when list_type is set to backlog' do
+      subject { described_class.new(list_type: :backlog) }
+
+      it { is_expected.not_to validate_presence_of(:label) }
+      it { is_expected.not_to validate_presence_of(:position) }
+    end
+
+    context 'when list_type is set to done' do
+      subject { described_class.new(list_type: :done) }
+
+      it { is_expected.not_to validate_presence_of(:label) }
+      it { is_expected.not_to validate_presence_of(:position) }
+    end
+  end
+
+  describe '#destroy' do
+    it 'can be destroyed when when list_type is set to label' do
+      subject = create(:list)
+
+      expect(subject.destroy).to be_truthy
+    end
+
+    it 'can not be destroyed when list_type is set to backlog' do
+      subject = create(:backlog_list)
+
+      expect(subject.destroy).to be_falsey
+    end
+
+    it 'can not be destroyed when when list_type is set to done' do
+      subject = create(:done_list)
+
+      expect(subject.destroy).to be_falsey
+    end
+  end
+
+  describe '#destroyable?' do
+    it 'retruns true when list_type is set to label' do
+      subject.list_type = :label
+
+      expect(subject).to be_destroyable
+    end
+
+    it 'retruns false when list_type is set to backlog' do
+      subject.list_type = :backlog
+
+      expect(subject).not_to be_destroyable
+    end
+
+    it 'retruns false when list_type is set to done' do
+      subject.list_type = :done
+
+      expect(subject).not_to be_destroyable
+    end
+  end
+
+  describe '#movable?' do
+    it 'retruns true when list_type is set to label' do
+      subject.list_type = :label
+
+      expect(subject).to be_movable
+    end
+
+    it 'retruns false when list_type is set to backlog' do
+      subject.list_type = :backlog
+
+      expect(subject).not_to be_movable
+    end
+
+    it 'retruns false when list_type is set to done' do
+      subject.list_type = :done
+
+      expect(subject).not_to be_movable
+    end
+  end
+
+  describe '#title' do
+    it 'returns label name when list_type is set to label' do
+      subject.list_type = :label
+      subject.label = Label.new(name: 'Development')
+
+      expect(subject.title).to eq 'Development'
+    end
+
+    it 'returns Backlog when list_type is set to backlog' do
+      subject.list_type = :backlog
+
+      expect(subject.title).to eq 'Backlog'
+    end
+
+    it 'returns Done when list_type is set to done' do
+      subject.list_type = :done
+
+      expect(subject.title).to eq 'Done'
+    end
+  end
+end

spec/models/project_spec.rb

@@ -23,6 +23,7 @@ describe Project, models: true do
     it { is_expected.to have_one(:slack_service).dependent(:destroy) }
     it { is_expected.to have_one(:pushover_service).dependent(:destroy) }
     it { is_expected.to have_one(:asana_service).dependent(:destroy) }
+    it { is_expected.to have_one(:board).dependent(:destroy) }
     it { is_expected.to have_many(:commit_statuses) }
     it { is_expected.to have_many(:pipelines) }
     it { is_expected.to have_many(:builds) }

spec/services/boards/create_service_spec.rb

+require 'spec_helper'
+
+describe Boards::CreateService, services: true do
+  describe '#execute' do
+    subject(:service) { described_class.new(project, double) }
+
+    context 'when project does not have a board' do
+      let(:project) { create(:empty_project, board: nil) }
+
+      it 'creates a new board' do
+        expect { service.execute }.to change(Board, :count).by(1)
+      end
+
+      it 'creates default lists' do
+        service.execute
+
+        expect(project.board.lists.size).to eq 2
+        expect(project.board.lists.first).to be_backlog
+        expect(project.board.lists.last).to be_done
+      end
+    end
+
+    context 'when project has a board' do
+      let!(:project) { create(:project_with_board) }
+
+      it 'does not create a new board' do
+        expect { service.execute }.not_to change(Board, :count)
+      end
+
+      it 'does not create board lists' do
+        expect { service.execute }.not_to change(project.board.lists, :count)
+      end
+    end
+  end
+end

spec/services/boards/issues/list_service_spec.rb

+require 'spec_helper'
+
+describe Boards::Issues::ListService, services: true do
+  describe '#execute' do
+    let(:user)    { create(:user) }
+    let(:project) { create(:project_with_board) }
+    let(:board)   { project.board }
+
+    let(:bug) { create(:label, project: project, name: 'Bug') }
+    let(:development) { create(:label, project: project, name: 'Development') }
+    let(:testing)  { create(:label, project: project, name: 'Testing') }
+    let(:p1) { create(:label, title: 'P1', project: project, priority: 1) }
+    let(:p2) { create(:label, title: 'P2', project: project, priority: 2) }
+    let(:p3) { create(:label, title: 'P3', project: project, priority: 3) }
+
+    let!(:backlog) { create(:backlog_list, board: board) }
+    let!(:list1)   { create(:list, board: board, label: development, position: 0) }
+    let!(:list2)   { create(:list, board: board, label: testing, position: 1) }
+    let!(:done)    { create(:done_list, board: board) }
+
+    let!(:opened_issue1) { create(:labeled_issue, project: project, labels: [bug]) }
+    let!(:opened_issue2) { create(:labeled_issue, project: project, labels: [p2]) }
+    let!(:reopened_issue1) { create(:issue, :reopened, project: project) }
+
+    let!(:list1_issue1) { create(:labeled_issue, project: project, labels: [p2, development]) }
+    let!(:list1_issue2) { create(:labeled_issue, project: project, labels: [development]) }
+    let!(:list1_issue3) { create(:labeled_issue, project: project, labels: [development, p1]) }
+    let!(:list2_issue1) { create(:labeled_issue, project: project, labels: [testing]) }
+
+    let!(:closed_issue1) { create(:labeled_issue, :closed, project: project, labels: [bug]) }
+    let!(:closed_issue2) { create(:labeled_issue, :closed, project: project, labels: [p3]) }
+    let!(:closed_issue3) { create(:issue, :closed, project: project) }
+    let!(:closed_issue4) { create(:labeled_issue, :closed, project: project, labels: [p1]) }
+
+    before do
+      project.team << [user, :developer]
+    end
+
+    it 'delegates search to IssuesFinder' do
+      params = { id: list1.id }
+
+      expect_any_instance_of(IssuesFinder).to receive(:execute).once.and_call_original
+
+      described_class.new(project, user, params).execute
+    end
+
+    context 'sets default order to priority' do
+      it 'returns opened issues when listing issues from Backlog' do
+        params = { id: backlog.id }
+
+        issues = described_class.new(project, user, params).execute
+
+        expect(issues).to eq [opened_issue2, reopened_issue1, opened_issue1]
+      end
+
+      it 'returns closed issues when listing issues from Done' do
+        params = { id: done.id }
+
+        issues = described_class.new(project, user, params).execute
+
+        expect(issues).to eq [closed_issue4, closed_issue2, closed_issue3, closed_issue1]
+      end
+
+      it 'returns opened issues that have label list applied when listing issues from a label list' do
+        params = { id: list1.id }
+
+        issues = described_class.new(project, user, params).execute
+
+        expect(issues).to eq [list1_issue3, list1_issue1, list1_issue2]
+      end
+    end
+  end
+end

spec/services/boards/issues/move_service_spec.rb

+require 'spec_helper'
+
+describe Boards::Issues::MoveService, services: true do
+  describe '#execute' do
+    let(:user)    { create(:user) }
+    let(:project) { create(:project_with_board) }
+    let(:board)   { project.board }
+
+    let(:bug) { create(:label, project: project, name: 'Bug') }
+    let(:development) { create(:label, project: project, name: 'Development') }
+    let(:testing)  { create(:label, project: project, name: 'Testing') }
+
+    let!(:backlog) { create(:backlog_list, board: board) }
+    let!(:list1)   { create(:list, board: board, label: development, position: 0) }
+    let!(:list2)   { create(:list, board: board, label: testing, position: 1) }
+    let!(:done)    { create(:done_list, board: board) }
+
+    before do
+      project.team << [user, :developer]
+    end
+
+    context 'when moving from backlog' do
+      it 'adds the label of the list it goes to' do
+        issue = create(:labeled_issue, project: project, labels: [bug])
+        params = { from_list_id: backlog.id, to_list_id: list1.id }
+
+        described_class.new(project, user, params).execute(issue)
+
+        expect(issue.reload.labels).to contain_exactly(bug, development)
+      end
+    end
+
+    context 'when moving to backlog' do
+      it 'removes all list-labels' do
+        issue = create(:labeled_issue, project: project, labels: [bug, development, testing])
+        params = { from_list_id: list1.id, to_list_id: backlog.id }
+
+        described_class.new(project, user, params).execute(issue)
+
+        expect(issue.reload.labels).to contain_exactly(bug)
+      end
+    end
+
+    context 'when moving from backlog to done' do
+      it 'closes the issue' do
+        issue = create(:labeled_issue, project: project, labels: [bug])
+        params = { from_list_id: backlog.id, to_list_id: done.id }
+
+        described_class.new(project, user, params).execute(issue)
+        issue.reload
+
+        expect(issue.labels).to contain_exactly(bug)
+        expect(issue).to be_closed
+      end
+    end
+
+    context 'when moving an issue between lists' do
+      let(:issue)  { create(:labeled_issue, project: project, labels: [bug, development]) }
+      let(:params) { { from_list_id: list1.id, to_list_id: list2.id } }
+
+      it 'delegates the label changes to Issues::UpdateService' do
+        expect_any_instance_of(Issues::UpdateService).to receive(:execute).with(issue).once
+
+        described_class.new(project, user, params).execute(issue)
+      end
+
+      it 'removes the label from the list it came from and adds the label of the list it goes to' do
+        described_class.new(project, user, params).execute(issue)
+
+        expect(issue.reload.labels).to contain_exactly(bug, testing)
+      end
+    end
+
+    context 'when moving to done' do
+      let(:issue)  { create(:labeled_issue, project: project, labels: [bug, development, testing]) }
+      let(:params) { { from_list_id: list2.id, to_list_id: done.id } }
+
+      it 'delegates the close proceedings to Issues::CloseService' do
+        expect_any_instance_of(Issues::CloseService).to receive(:execute).with(issue).once
+
+        described_class.new(project, user, params).execute(issue)
+      end
+
+      it 'removes all list-labels and close the issue' do
+        described_class.new(project, user, params).execute(issue)
+        issue.reload
+
+        expect(issue.labels).to contain_exactly(bug)
+        expect(issue).to be_closed
+      end
+    end
+
+    context 'when moving from done' do
+      let(:issue)  { create(:labeled_issue, :closed, project: project, labels: [bug]) }
+      let(:params) { { from_list_id: done.id, to_list_id: list2.id } }
+
+      it 'delegates the re-open proceedings to Issues::ReopenService' do
+        expect_any_instance_of(Issues::ReopenService).to receive(:execute).with(issue).once
+
+        described_class.new(project, user, params).execute(issue)
+      end
+
+      it 'adds the label of the list it goes to and reopen the issue' do
+        described_class.new(project, user, params).execute(issue)
+        issue.reload
+
+        expect(issue.labels).to contain_exactly(bug, testing)
+        expect(issue).to be_reopened
+      end
+    end
+
+    context 'when moving from done to backlog' do
+      it 'reopens the issue' do
+        issue = create(:labeled_issue, :closed, project: project, labels: [bug])
+        params = { from_list_id: done.id, to_list_id: backlog.id }
+
+        described_class.new(project, user, params).execute(issue)
+        issue.reload
+
+        expect(issue.labels).to contain_exactly(bug)
+        expect(issue).to be_reopened
+      end
+    end
+
+    context 'when moving to same list' do
+      let(:issue)  { create(:labeled_issue, project: project, labels: [bug, development]) }
+      let(:params) { { from_list_id: list1.id, to_list_id: list1.id } }
+
+      it 'returns false' do
+        expect(described_class.new(project, user, params).execute(issue)).to eq false
+      end
+
+      it 'keeps issues labels' do
+        described_class.new(project, user, params).execute(issue)
+
+        expect(issue.reload.labels).to contain_exactly(bug, development)
+      end
+    end
+  end
+end

spec/services/boards/lists/create_service_spec.rb

+require 'spec_helper'
+
+describe Boards::Lists::CreateService, services: true do
+  describe '#execute' do
+    let(:project) { create(:project_with_board) }
+    let(:board)   { project.board }
+    let(:user)    { create(:user) }
+    let(:label)   { create(:label, name: 'in-progress') }
+
+    subject(:service) { described_class.new(project, user, label_id: label.id) }
+
+    context 'when board lists is empty' do
+      it 'creates a new list at beginning of the list' do
+        list = service.execute
+
+        expect(list.position).to eq 0
+      end
+    end
+
+    context 'when board lists has only a backlog list' do
+      it 'creates a new list at beginning of the list' do
+        create(:backlog_list, board: board)
+
+        list = service.execute
+
+        expect(list.position).to eq 0
+      end
+    end
+
+    context 'when board lists has only labels lists' do
+      it 'creates a new list at end of the lists' do
+        create(:list, board: board, position: 0)
+        create(:list, board: board, position: 1)
+
+        list = service.execute
+
+        expect(list.position).to eq 2
+      end
+    end
+
+    context 'when board lists has backlog, label and done lists' do
+      it 'creates a new list at end of the label lists' do
+        create(:backlog_list, board: board)
+        create(:done_list, board: board)
+        list1 = create(:list, board: board, position: 0)
+
+        list2 = service.execute
+
+        expect(list1.reload.position).to eq 0
+        expect(list2.reload.position).to eq 1
+      end
+    end
+  end
+end

spec/services/boards/lists/destroy_service_spec.rb

+require 'spec_helper'
+
+describe Boards::Lists::DestroyService, services: true do
+  describe '#execute' do
+    let(:project) { create(:project_with_board) }
+    let(:board)   { project.board }
+    let(:user)    { create(:user) }
+
+    context 'when list type is label' do
+      it 'removes list from board' do
+        list = create(:list, board: board)
+        service = described_class.new(project, user)
+
+        expect { service.execute(list) }.to change(board.lists, :count).by(-1)
+      end
+
+      it 'decrements position of higher lists' do
+        backlog     = create(:backlog_list, board: board)
+        development = create(:list, board: board, position: 0)
+        review      = create(:list, board: board, position: 1)
+        staging     = create(:list, board: board, position: 2)
+        done        = create(:done_list, board: board)
+
+        described_class.new(project, user).execute(development)
+
+        expect(backlog.reload.position).to be_nil
+        expect(review.reload.position).to eq 0
+        expect(staging.reload.position).to eq 1
+        expect(done.reload.position).to be_nil
+      end
+    end
+
+    it 'does not remove list from board when list type is backlog' do
+      list = create(:backlog_list, board: board)
+      service = described_class.new(project, user)
+
+      expect { service.execute(list) }.not_to change(board.lists, :count)
+    end
+
+    it 'does not remove list from board when list type is done' do
+      list = create(:done_list, board: board)
+      service = described_class.new(project, user)
+
+      expect { service.execute(list) }.not_to change(board.lists, :count)
+    end
+  end
+end

spec/services/boards/lists/generate_service_spec.rb

+require 'spec_helper'
+
+describe Boards::Lists::GenerateService, services: true do
+  describe '#execute' do
+    let(:project) { create(:project_with_board) }
+    let(:board)   { project.board }
+    let(:user)    { create(:user) }
+
+    subject(:service) { described_class.new(project, user) }
+
+    context 'when board lists is empty' do
+      it 'creates the default lists' do
+        expect { service.execute }.to change(board.lists, :count).by(4)
+      end
+    end
+
+    context 'when board lists is not empty' do
+      it 'does not creates the default lists' do
+        create(:list, board: board)
+
+        expect { service.execute }.not_to change(board.lists, :count)
+      end
+    end
+
+    context 'when project labels does not contains any list label' do
+      it 'creates labels' do
+        expect { service.execute }.to change(project.labels, :count).by(4)
+      end
+    end
+
+    context 'when project labels contains some of list label' do
+      it 'creates the missing labels' do
+        create(:label, project: project, name: 'Development')
+        create(:label, project: project, name: 'Ready')
+
+        expect { service.execute }.to change(project.labels, :count).by(2)
+      end
+    end
+  end
+end

spec/services/boards/lists/move_service_spec.rb

+require 'spec_helper'
+
+describe Boards::Lists::MoveService, services: true do
+  describe '#execute' do
+    let(:project) { create(:project_with_board) }
+    let(:board)   { project.board }
+    let(:user)    { create(:user) }
+
+    let!(:backlog)     { create(:backlog_list, board: board) }
+    let!(:planning)    { create(:list, board: board, position: 0) }
+    let!(:development) { create(:list, board: board, position: 1) }
+    let!(:review)      { create(:list, board: board, position: 2) }
+    let!(:staging)     { create(:list, board: board, position: 3) }
+    let!(:done)        { create(:done_list, board: board) }
+
+    context 'when list type is set to label' do
+      it 'keeps position of lists when new position is nil' do
+        service = described_class.new(project, user, position: nil)
+
+        service.execute(planning)
+
+        expect(current_list_positions).to eq [0, 1, 2, 3]
+      end
+
+      it 'keeps position of lists when new positon is equal to old position' do
+        service = described_class.new(project, user, position: planning.position)
+
+        service.execute(planning)
+
+        expect(current_list_positions).to eq [0, 1, 2, 3]
+      end
+
+      it 'keeps position of lists when new positon is negative' do
+        service = described_class.new(project, user, position: -1)
+
+        service.execute(planning)
+
+        expect(current_list_positions).to eq [0, 1, 2, 3]
+      end
+
+      it 'keeps position of lists when new positon is equal to number of labels lists' do
+        service = described_class.new(project, user, position: board.lists.label.size)
+
+        service.execute(planning)
+
+        expect(current_list_positions).to eq [0, 1, 2, 3]
+      end
+
+      it 'keeps position of lists when new positon is greater than number of labels lists' do
+        service = described_class.new(project, user, position: board.lists.label.size + 1)
+
+        service.execute(planning)
+
+        expect(current_list_positions).to eq [0, 1, 2, 3]
+      end
+
+      it 'increments position of intermediate lists when new positon is equal to first position' do
+        service = described_class.new(project, user, position: 0)
+
+        service.execute(staging)
+
+        expect(current_list_positions).to eq [1, 2, 3, 0]
+      end
+
+      it 'decrements position of intermediate lists when new positon is equal to last position' do
+        service = described_class.new(project, user, position: board.lists.label.last.position)
+
+        service.execute(planning)
+
+        expect(current_list_positions).to eq [3, 0, 1, 2]
+      end
+
+      it 'decrements position of intermediate lists when new position is greater than old position' do
+        service = described_class.new(project, user, position: 2)
+
+        service.execute(planning)
+
+        expect(current_list_positions).to eq [2, 0, 1, 3]
+      end
+
+      it 'increments position of intermediate lists when new position is lower than old position' do
+        service = described_class.new(project, user, position: 1)
+
+        service.execute(staging)
+
+        expect(current_list_positions).to eq [0, 2, 3, 1]
+      end
+    end
+
+    it 'keeps position of lists when list type is backlog' do
+      service = described_class.new(project, user, position: 2)
+
+      service.execute(backlog)
+
+      expect(current_list_positions).to eq [0, 1, 2, 3]
+    end
+
+    it 'keeps position of lists when list type is done' do
+      service = described_class.new(project, user, position: 2)
+
+      service.execute(done)
+
+      expect(current_list_positions).to eq [0, 1, 2, 3]
+    end
+  end
+
+  def current_list_positions
+    [planning, development, review, staging].map { |list| list.reload.position }
+  end
+end

spec/support/api/schema_matcher.rb

+RSpec::Matchers.define :match_response_schema do |schema, **options|
+  match do |response|
+    schema_directory = "#{Dir.pwd}/spec/fixtures/api/schemas"
+    schema_path = "#{schema_directory}/#{schema}.json"
+
+    JSON::Validator.validate!(schema_path, response.body, options)
+  end
+end

vendor/assets/javascripts/Sortable.js

+/**!
+ * Sortable
+ * @author	RubaXa   <trash@rubaxa.org>
+ * @license MIT
+ */
+
+
+(function (factory) {
+	"use strict";
+
+	if (typeof define === "function" && define.amd) {
+		define(factory);
+	}
+	else if (typeof module != "undefined" && typeof module.exports != "undefined") {
+		module.exports = factory();
+	}
+	else if (typeof Package !== "undefined") {
+		Sortable = factory();  // export for Meteor.js
+	}
+	else {
+		/* jshint sub:true */
+		window["Sortable"] = factory();
+	}
+})(function () {
+	"use strict";
+
+	var dragEl,
+		parentEl,
+		ghostEl,
+		cloneEl,
+		rootEl,
+		nextEl,
+
+		scrollEl,
+		scrollParentEl,
+
+		lastEl,
+		lastCSS,
+		lastParentCSS,
+
+		oldIndex,
+		newIndex,
+
+		activeGroup,
+		autoScroll = {},
+
+		tapEvt,
+		touchEvt,
+
+		moved,
+
+		/** @const */
+		RSPACE = /\s+/g,
+
+		expando = 'Sortable' + (new Date).getTime(),
+
+		win = window,
+		document = win.document,
+		parseInt = win.parseInt,
+
+		supportDraggable = !!('draggable' in document.createElement('div')),
+		supportCssPointerEvents = (function (el) {
+			el = document.createElement('x');
+			el.style.cssText = 'pointer-events:auto';
+			return el.style.pointerEvents === 'auto';
+		})(),
+
+		_silent = false,
+
+		abs = Math.abs,
+		min = Math.min,
+		slice = [].slice,
+
+		touchDragOverListeners = [],
+
+		_autoScroll = _throttle(function (/**Event*/evt, /**Object*/options, /**HTMLElement*/rootEl) {
+			// Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=505521
+			if (rootEl && options.scroll) {
+				var el,
+					rect,
+					sens = options.scrollSensitivity,
+					speed = options.scrollSpeed,
+
+					x = evt.clientX,
+					y = evt.clientY,
+
+					winWidth = window.innerWidth,
+					winHeight = window.innerHeight,
+
+					vx,
+					vy
+				;
+
+				// Delect scrollEl
+				if (scrollParentEl !== rootEl) {
+					scrollEl = options.scroll;
+					scrollParentEl = rootEl;
+
+					if (scrollEl === true) {
+						scrollEl = rootEl;
+
+						do {
+							if ((scrollEl.offsetWidth < scrollEl.scrollWidth) ||
+								(scrollEl.offsetHeight < scrollEl.scrollHeight)
+							) {
+								break;
+							}
+							/* jshint boss:true */
+						} while (scrollEl = scrollEl.parentNode);
+					}
+				}
+
+				if (scrollEl) {
+					el = scrollEl;
+					rect = scrollEl.getBoundingClientRect();
+					vx = (abs(rect.right - x) <= sens) - (abs(rect.left - x) <= sens);
+					vy = (abs(rect.bottom - y) <= sens) - (abs(rect.top - y) <= sens);
+				}
+
+
+				if (!(vx || vy)) {
+					vx = (winWidth - x <= sens) - (x <= sens);
+					vy = (winHeight - y <= sens) - (y <= sens);
+
+					/* jshint expr:true */
+					(vx || vy) && (el = win);
+				}
+
+
+				if (autoScroll.vx !== vx || autoScroll.vy !== vy || autoScroll.el !== el) {
+					autoScroll.el = el;
+					autoScroll.vx = vx;
+					autoScroll.vy = vy;
+
+					clearInterval(autoScroll.pid);
+
+					if (el) {
+						autoScroll.pid = setInterval(function () {
+							if (el === win) {
+								win.scrollTo(win.pageXOffset + vx * speed, win.pageYOffset + vy * speed);
+							} else {
+								vy && (el.scrollTop += vy * speed);
+								vx && (el.scrollLeft += vx * speed);
+							}
+						}, 24);
+					}
+				}
+			}
+		}, 30),
+
+		_prepareGroup = function (options) {
+			var group = options.group;
+
+			if (!group || typeof group != 'object') {
+				group = options.group = {name: group};
+			}
+
+			['pull', 'put'].forEach(function (key) {
+				if (!(key in group)) {
+					group[key] = true;
+				}
+			});
+
+			options.groups = ' ' + group.name + (group.put.join ? ' ' + group.put.join(' ') : '') + ' ';
+		}
+	;
+
+
+
+	/**
+	 * @class  Sortable
+	 * @param  {HTMLElement}  el
+	 * @param  {Object}       [options]
+	 */
+	function Sortable(el, options) {
+		if (!(el && el.nodeType && el.nodeType === 1)) {
+			throw 'Sortable: `el` must be HTMLElement, and not ' + {}.toString.call(el);
+		}
+
+		this.el = el; // root element
+		this.options = options = _extend({}, options);
+
+
+		// Export instance
+		el[expando] = this;
+
+
+		// Default options
+		var defaults = {
+			group: Math.random(),
+			sort: true,
+			disabled: false,
+			store: null,
+			handle: null,
+			scroll: true,
+			scrollSensitivity: 30,
+			scrollSpeed: 10,
+			draggable: /[uo]l/i.test(el.nodeName) ? 'li' : '>*',
+			ghostClass: 'sortable-ghost',
+			chosenClass: 'sortable-chosen',
+			ignore: 'a, img',
+			filter: null,
+			animation: 0,
+			setData: function (dataTransfer, dragEl) {
+				dataTransfer.setData('Text', dragEl.textContent);
+			},
+			dropBubble: false,
+			dragoverBubble: false,
+			dataIdAttr: 'data-id',
+			delay: 0,
+			forceFallback: false,
+			fallbackClass: 'sortable-fallback',
+			fallbackOnBody: false,
+			fallbackTolerance: 0
+		};
+
+
+		// Set default options
+		for (var name in defaults) {
+			!(name in options) && (options[name] = defaults[name]);
+		}
+
+		_prepareGroup(options);
+
+		// Bind all private methods
+		for (var fn in this) {
+			if (fn.charAt(0) === '_') {
+				this[fn] = this[fn].bind(this);
+			}
+		}
+
+		// Setup drag mode
+		this.nativeDraggable = options.forceFallback ? false : supportDraggable;
+
+		// Bind events
+		_on(el, 'mousedown', this._onTapStart);
+		_on(el, 'touchstart', this._onTapStart);
+
+		if (this.nativeDraggable) {
+			_on(el, 'dragover', this);
+			_on(el, 'dragenter', this);
+		}
+
+		touchDragOverListeners.push(this._onDragOver);
+
+		// Restore sorting
+		options.store && this.sort(options.store.get(this));
+	}
+
+
+	Sortable.prototype = /** @lends Sortable.prototype */ {
+		constructor: Sortable,
+
+		_onTapStart: function (/** Event|TouchEvent */evt) {
+			var _this = this,
+				el = this.el,
+				options = this.options,
+				type = evt.type,
+				touch = evt.touches && evt.touches[0],
+				target = (touch || evt).target,
+				originalTarget = target,
+				filter = options.filter,
+				startIndex;
+
+			// Don't trigger start event when an element is been dragged, otherwise the evt.oldindex always wrong when set option.group.
+			if (dragEl) {
+				return;
+			}
+
+			if (type === 'mousedown' && evt.button !== 0 || options.disabled) {
+				return; // only left button or enabled
+			}
+
+			target = _closest(target, options.draggable, el);
+
+			if (!target) {
+				return;
+			}
+
+			if (options.handle && !_closest(originalTarget, options.handle, el)) {
+				return;
+			}
+
+			// Get the index of the dragged element within its parent
+			startIndex = _index(target, options.draggable);
+
+			// Check filter
+			if (typeof filter === 'function') {
+				if (filter.call(this, evt, target, this)) {
+					_dispatchEvent(_this, originalTarget, 'filter', target, el, startIndex);
+					evt.preventDefault();
+					return; // cancel dnd
+				}
+			}
+			else if (filter) {
+				filter = filter.split(',').some(function (criteria) {
+					criteria = _closest(originalTarget, criteria.trim(), el);
+
+					if (criteria) {
+						_dispatchEvent(_this, criteria, 'filter', target, el, startIndex);
+						return true;
+					}
+				});
+
+				if (filter) {
+					evt.preventDefault();
+					return; // cancel dnd
+				}
+			}
+
+			// Prepare `dragstart`
+			this._prepareDragStart(evt, touch, target, startIndex);
+		},
+
+		_prepareDragStart: function (/** Event */evt, /** Touch */touch, /** HTMLElement */target, /** Number */startIndex) {
+			var _this = this,
+				el = _this.el,
+				options = _this.options,
+				ownerDocument = el.ownerDocument,
+				dragStartFn;
+
+			if (target && !dragEl && (target.parentNode === el)) {
+				tapEvt = evt;
+
+				rootEl = el;
+				dragEl = target;
+				parentEl = dragEl.parentNode;
+				nextEl = dragEl.nextSibling;
+				activeGroup = options.group;
+				oldIndex = startIndex;
+
+				this._lastX = (touch || evt).clientX;
+				this._lastY = (touch || evt).clientY;
+
+				dragStartFn = function () {
+					// Delayed drag has been triggered
+					// we can re-enable the events: touchmove/mousemove
+					_this._disableDelayedDrag();
+
+					// Make the element draggable
+					dragEl.draggable = true;
+
+					// Chosen item
+					_toggleClass(dragEl, _this.options.chosenClass, true);
+
+					// Bind the events: dragstart/dragend
+					_this._triggerDragStart(touch);
+
+					// Drag start event
+					_dispatchEvent(_this, rootEl, 'choose', dragEl, rootEl, oldIndex);
+				};
+
+				// Disable "draggable"
+				options.ignore.split(',').forEach(function (criteria) {
+					_find(dragEl, criteria.trim(), _disableDraggable);
+				});
+
+				_on(ownerDocument, 'mouseup', _this._onDrop);
+				_on(ownerDocument, 'touchend', _this._onDrop);
+				_on(ownerDocument, 'touchcancel', _this._onDrop);
+
+				if (options.delay) {
+					// If the user moves the pointer or let go the click or touch
+					// before the delay has been reached:
+					// disable the delayed drag
+					_on(ownerDocument, 'mouseup', _this._disableDelayedDrag);
+					_on(ownerDocument, 'touchend', _this._disableDelayedDrag);
+					_on(ownerDocument, 'touchcancel', _this._disableDelayedDrag);
+					_on(ownerDocument, 'mousemove', _this._disableDelayedDrag);
+					_on(ownerDocument, 'touchmove', _this._disableDelayedDrag);
+
+					_this._dragStartTimer = setTimeout(dragStartFn, options.delay);
+				} else {
+					dragStartFn();
+				}
+			}
+		},
+
+		_disableDelayedDrag: function () {
+			var ownerDocument = this.el.ownerDocument;
+
+			clearTimeout(this._dragStartTimer);
+			_off(ownerDocument, 'mouseup', this._disableDelayedDrag);
+			_off(ownerDocument, 'touchend', this._disableDelayedDrag);
+			_off(ownerDocument, 'touchcancel', this._disableDelayedDrag);
+			_off(ownerDocument, 'mousemove', this._disableDelayedDrag);
+			_off(ownerDocument, 'touchmove', this._disableDelayedDrag);
+		},
+
+		_triggerDragStart: function (/** Touch */touch) {
+			if (touch) {
+				// Touch device support
+				tapEvt = {
+					target: dragEl,
+					clientX: touch.clientX,
+					clientY: touch.clientY
+				};
+
+				this._onDragStart(tapEvt, 'touch');
+			}
+			else if (!this.nativeDraggable) {
+				this._onDragStart(tapEvt, true);
+			}
+			else {
+				_on(dragEl, 'dragend', this);
+				_on(rootEl, 'dragstart', this._onDragStart);
+			}
+
+			try {
+				if (document.selection) {
+					document.selection.empty();
+				} else {
+					window.getSelection().removeAllRanges();
+				}
+			} catch (err) {
+			}
+		},
+
+		_dragStarted: function () {
+			if (rootEl && dragEl) {
+				// Apply effect
+				_toggleClass(dragEl, this.options.ghostClass, true);
+
+				Sortable.active = this;
+
+				// Drag start event
+				_dispatchEvent(this, rootEl, 'start', dragEl, rootEl, oldIndex);
+			}
+		},
+
+		_emulateDragOver: function () {
+			if (touchEvt) {
+				if (this._lastX === touchEvt.clientX && this._lastY === touchEvt.clientY) {
+					return;
+				}
+
+				this._lastX = touchEvt.clientX;
+				this._lastY = touchEvt.clientY;
+
+				if (!supportCssPointerEvents) {
+					_css(ghostEl, 'display', 'none');
+				}
+
+				var target = document.elementFromPoint(touchEvt.clientX, touchEvt.clientY),
+					parent = target,
+					groupName = ' ' + this.options.group.name + '',
+					i = touchDragOverListeners.length;
+
+				if (parent) {
+					do {
+						if (parent[expando] && parent[expando].options.groups.indexOf(groupName) > -1) {
+							while (i--) {
+								touchDragOverListeners[i]({
+									clientX: touchEvt.clientX,
+									clientY: touchEvt.clientY,
+									target: target,
+									rootEl: parent
+								});
+							}
+
+							break;
+						}
+
+						target = parent; // store last element
+					}
+					/* jshint boss:true */
+					while (parent = parent.parentNode);
+				}
+
+				if (!supportCssPointerEvents) {
+					_css(ghostEl, 'display', '');
+				}
+			}
+		},
+
+
+		_onTouchMove: function (/**TouchEvent*/evt) {
+			if (tapEvt) {
+				var	options = this.options,
+					fallbackTolerance = options.fallbackTolerance,
+					touch = evt.touches ? evt.touches[0] : evt,
+					dx = touch.clientX - tapEvt.clientX,
+					dy = touch.clientY - tapEvt.clientY,
+					translate3d = evt.touches ? 'translate3d(' + dx + 'px,' + dy + 'px,0)' : 'translate(' + dx + 'px,' + dy + 'px)';
+
+				// only set the status to dragging, when we are actually dragging
+				if (!Sortable.active) {
+					if (fallbackTolerance &&
+						min(abs(touch.clientX - this._lastX), abs(touch.clientY - this._lastY)) < fallbackTolerance
+					) {
+						return;
+					}
+
+					this._dragStarted();
+				}
+
+				// as well as creating the ghost element on the document body
+				this._appendGhost();
+
+				moved = true;
+				touchEvt = touch;
+
+				_css(ghostEl, 'webkitTransform', translate3d);
+				_css(ghostEl, 'mozTransform', translate3d);
+				_css(ghostEl, 'msTransform', translate3d);
+				_css(ghostEl, 'transform', translate3d);
+
+				evt.preventDefault();
+			}
+		},
+
+		_appendGhost: function () {
+			if (!ghostEl) {
+				var rect = dragEl.getBoundingClientRect(),
+					css = _css(dragEl),
+					options = this.options,
+					ghostRect;
+
+				ghostEl = dragEl.cloneNode(true);
+
+				_toggleClass(ghostEl, options.ghostClass, false);
+				_toggleClass(ghostEl, options.fallbackClass, true);
+
+				_css(ghostEl, 'top', rect.top - parseInt(css.marginTop, 10));
+				_css(ghostEl, 'left', rect.left - parseInt(css.marginLeft, 10));
+				_css(ghostEl, 'width', rect.width);
+				_css(ghostEl, 'height', rect.height);
+				_css(ghostEl, 'opacity', '0.8');
+				_css(ghostEl, 'position', 'fixed');
+				_css(ghostEl, 'zIndex', '100000');
+				_css(ghostEl, 'pointerEvents', 'none');
+
+				options.fallbackOnBody && document.body.appendChild(ghostEl) || rootEl.appendChild(ghostEl);
+
+				// Fixing dimensions.
+				ghostRect = ghostEl.getBoundingClientRect();
+				_css(ghostEl, 'width', rect.width * 2 - ghostRect.width);
+				_css(ghostEl, 'height', rect.height * 2 - ghostRect.height);
+			}
+		},
+
+		_onDragStart: function (/**Event*/evt, /**boolean*/useFallback) {
+			var dataTransfer = evt.dataTransfer,
+				options = this.options;
+
+			this._offUpEvents();
+
+			if (activeGroup.pull == 'clone') {
+				cloneEl = dragEl.cloneNode(true);
+				_css(cloneEl, 'display', 'none');
+				rootEl.insertBefore(cloneEl, dragEl);
+				_dispatchEvent(this, rootEl, 'clone', dragEl);
+			}
+
+			if (useFallback) {
+				if (useFallback === 'touch') {
+					// Bind touch events
+					_on(document, 'touchmove', this._onTouchMove);
+					_on(document, 'touchend', this._onDrop);
+					_on(document, 'touchcancel', this._onDrop);
+				} else {
+					// Old brwoser
+					_on(document, 'mousemove', this._onTouchMove);
+					_on(document, 'mouseup', this._onDrop);
+				}
+
+				this._loopId = setInterval(this._emulateDragOver, 50);
+			}
+			else {
+				if (dataTransfer) {
+					dataTransfer.effectAllowed = 'move';
+					options.setData && options.setData.call(this, dataTransfer, dragEl);
+				}
+
+				_on(document, 'drop', this);
+				setTimeout(this._dragStarted, 0);
+			}
+		},
+
+		_onDragOver: function (/**Event*/evt) {
+			var el = this.el,
+				target,
+				dragRect,
+				revert,
+				options = this.options,
+				group = options.group,
+				groupPut = group.put,
+				isOwner = (activeGroup === group),
+				canSort = options.sort;
+
+			if (evt.preventDefault !== void 0) {
+				evt.preventDefault();
+				!options.dragoverBubble && evt.stopPropagation();
+			}
+
+			moved = true;
+
+			if (activeGroup && !options.disabled &&
+				(isOwner
+					? canSort || (revert = !rootEl.contains(dragEl)) // Reverting item into the original list
+					: activeGroup.pull && groupPut && (
+						(activeGroup.name === group.name) || // by Name
+						(groupPut.indexOf && ~groupPut.indexOf(activeGroup.name)) // by Array
+					)
+				) &&
+				(evt.rootEl === void 0 || evt.rootEl === this.el) // touch fallback
+			) {
+				// Smart auto-scrolling
+				_autoScroll(evt, options, this.el);
+
+				if (_silent) {
+					return;
+				}
+
+				target = _closest(evt.target, options.draggable, el);
+				dragRect = dragEl.getBoundingClientRect();
+
+				if (revert) {
+					_cloneHide(true);
+					parentEl = rootEl; // actualization
+
+					if (cloneEl || nextEl) {
+						rootEl.insertBefore(dragEl, cloneEl || nextEl);
+					}
+					else if (!canSort) {
+						rootEl.appendChild(dragEl);
+					}
+
+					return;
+				}
+
+
+				if ((el.children.length === 0) || (el.children[0] === ghostEl) ||
+					(el === evt.target) && (target = _ghostIsLast(el, evt))
+				) {
+
+					if (target) {
+						if (target.animated) {
+							return;
+						}
+
+						targetRect = target.getBoundingClientRect();
+					}
+
+					_cloneHide(isOwner);
+
+					if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect) !== false) {
+						if (!dragEl.contains(el)) {
+							el.appendChild(dragEl);
+							parentEl = el; // actualization
+						}
+
+						this._animate(dragRect, dragEl);
+						target && this._animate(targetRect, target);
+					}
+				}
+				else if (target && !target.animated && target !== dragEl && (target.parentNode[expando] !== void 0)) {
+					if (lastEl !== target) {
+						lastEl = target;
+						lastCSS = _css(target);
+						lastParentCSS = _css(target.parentNode);
+					}
+
+
+					var targetRect = target.getBoundingClientRect(),
+						width = targetRect.right - targetRect.left,
+						height = targetRect.bottom - targetRect.top,
+						floating = /left|right|inline/.test(lastCSS.cssFloat + lastCSS.display)
+							|| (lastParentCSS.display == 'flex' && lastParentCSS['flex-direction'].indexOf('row') === 0),
+						isWide = (target.offsetWidth > dragEl.offsetWidth),
+						isLong = (target.offsetHeight > dragEl.offsetHeight),
+						halfway = (floating ? (evt.clientX - targetRect.left) / width : (evt.clientY - targetRect.top) / height) > 0.5,
+						nextSibling = target.nextElementSibling,
+						moveVector = _onMove(rootEl, el, dragEl, dragRect, target, targetRect),
+						after
+					;
+
+					if (moveVector !== false) {
+						_silent = true;
+						setTimeout(_unsilent, 30);
+
+						_cloneHide(isOwner);
+
+						if (moveVector === 1 || moveVector === -1) {
+							after = (moveVector === 1);
+						}
+						else if (floating) {
+							var elTop = dragEl.offsetTop,
+								tgTop = target.offsetTop;
+
+							if (elTop === tgTop) {
+								after = (target.previousElementSibling === dragEl) && !isWide || halfway && isWide;
+							}
+							else if (target.previousElementSibling === dragEl || dragEl.previousElementSibling === target) {
+								after = (evt.clientY - targetRect.top) / height > 0.5;
+							} else {
+								after = tgTop > elTop;
+							}
+						} else {
+							after = (nextSibling !== dragEl) && !isLong || halfway && isLong;
+						}
+
+						if (!dragEl.contains(el)) {
+							if (after && !nextSibling) {
+								el.appendChild(dragEl);
+							} else {
+								target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
+							}
+						}
+
+						parentEl = dragEl.parentNode; // actualization
+
+						this._animate(dragRect, dragEl);
+						this._animate(targetRect, target);
+					}
+				}
+			}
+		},
+
+		_animate: function (prevRect, target) {
+			var ms = this.options.animation;
+
+			if (ms) {
+				var currentRect = target.getBoundingClientRect();
+
+				_css(target, 'transition', 'none');
+				_css(target, 'transform', 'translate3d('
+					+ (prevRect.left - currentRect.left) + 'px,'
+					+ (prevRect.top - currentRect.top) + 'px,0)'
+				);
+
+				target.offsetWidth; // repaint
+
+				_css(target, 'transition', 'all ' + ms + 'ms');
+				_css(target, 'transform', 'translate3d(0,0,0)');
+
+				clearTimeout(target.animated);
+				target.animated = setTimeout(function () {
+					_css(target, 'transition', '');
+					_css(target, 'transform', '');
+					target.animated = false;
+				}, ms);
+			}
+		},
+
+		_offUpEvents: function () {
+			var ownerDocument = this.el.ownerDocument;
+
+			_off(document, 'touchmove', this._onTouchMove);
+			_off(ownerDocument, 'mouseup', this._onDrop);
+			_off(ownerDocument, 'touchend', this._onDrop);
+			_off(ownerDocument, 'touchcancel', this._onDrop);
+		},
+
+		_onDrop: function (/**Event*/evt) {
+			var el = this.el,
+				options = this.options;
+
+			clearInterval(this._loopId);
+			clearInterval(autoScroll.pid);
+			clearTimeout(this._dragStartTimer);
+
+			// Unbind events
+			_off(document, 'mousemove', this._onTouchMove);
+
+			if (this.nativeDraggable) {
+				_off(document, 'drop', this);
+				_off(el, 'dragstart', this._onDragStart);
+			}
+
+			this._offUpEvents();
+
+			if (evt) {
+				if (moved) {
+					evt.preventDefault();
+					!options.dropBubble && evt.stopPropagation();
+				}
+
+				ghostEl && ghostEl.parentNode.removeChild(ghostEl);
+
+				if (dragEl) {
+					if (this.nativeDraggable) {
+						_off(dragEl, 'dragend', this);
+					}
+
+					_disableDraggable(dragEl);
+
+					// Remove class's
+					_toggleClass(dragEl, this.options.ghostClass, false);
+					_toggleClass(dragEl, this.options.chosenClass, false);
+
+					if (rootEl !== parentEl) {
+						newIndex = _index(dragEl, options.draggable);
+
+						if (newIndex >= 0) {
+							// drag from one list and drop into another
+							_dispatchEvent(null, parentEl, 'sort', dragEl, rootEl, oldIndex, newIndex);
+							_dispatchEvent(this, rootEl, 'sort', dragEl, rootEl, oldIndex, newIndex);
+
+							// Add event
+							_dispatchEvent(null, parentEl, 'add', dragEl, rootEl, oldIndex, newIndex);
+
+							// Remove event
+							_dispatchEvent(this, rootEl, 'remove', dragEl, rootEl, oldIndex, newIndex);
+						}
+					}
+					else {
+						// Remove clone
+						cloneEl && cloneEl.parentNode.removeChild(cloneEl);
+
+						if (dragEl.nextSibling !== nextEl) {
+							// Get the index of the dragged element within its parent
+							newIndex = _index(dragEl, options.draggable);
+
+							if (newIndex >= 0) {
+								// drag & drop within the same list
+								_dispatchEvent(this, rootEl, 'update', dragEl, rootEl, oldIndex, newIndex);
+								_dispatchEvent(this, rootEl, 'sort', dragEl, rootEl, oldIndex, newIndex);
+							}
+						}
+					}
+
+					if (Sortable.active) {
+						if (newIndex === null || newIndex === -1) {
+							newIndex = oldIndex;
+						}
+
+						_dispatchEvent(this, rootEl, 'end', dragEl, rootEl, oldIndex, newIndex);
+
+						// Save sorting
+						this.save();
+					}
+				}
+
+			}
+
+			this._nulling();
+		},
+
+		_nulling: function () {
+			rootEl =
+			dragEl =
+			parentEl =
+			ghostEl =
+			nextEl =
+			cloneEl =
+
+			scrollEl =
+			scrollParentEl =
+
+			tapEvt =
+			touchEvt =
+
+			moved =
+			newIndex =
+
+			lastEl =
+			lastCSS =
+
+			activeGroup =
+			Sortable.active = null;
+		},
+
+		handleEvent: function (/**Event*/evt) {
+			var type = evt.type;
+
+			if (type === 'dragover' || type === 'dragenter') {
+				if (dragEl) {
+					this._onDragOver(evt);
+					_globalDragOver(evt);
+				}
+			}
+			else if (type === 'drop' || type === 'dragend') {
+				this._onDrop(evt);
+			}
+		},
+
+
+		/**
+		 * Serializes the item into an array of string.
+		 * @returns {String[]}
+		 */
+		toArray: function () {
+			var order = [],
+				el,
+				children = this.el.children,
+				i = 0,
+				n = children.length,
+				options = this.options;
+
+			for (; i < n; i++) {
+				el = children[i];
+				if (_closest(el, options.draggable, this.el)) {
+					order.push(el.getAttribute(options.dataIdAttr) || _generateId(el));
+				}
+			}
+
+			return order;
+		},
+
+
+		/**
+		 * Sorts the elements according to the array.
+		 * @param  {String[]}  order  order of the items
+		 */
+		sort: function (order) {
+			var items = {}, rootEl = this.el;
+
+			this.toArray().forEach(function (id, i) {
+				var el = rootEl.children[i];
+
+				if (_closest(el, this.options.draggable, rootEl)) {
+					items[id] = el;
+				}
+			}, this);
+
+			order.forEach(function (id) {
+				if (items[id]) {
+					rootEl.removeChild(items[id]);
+					rootEl.appendChild(items[id]);
+				}
+			});
+		},
+
+
+		/**
+		 * Save the current sorting
+		 */
+		save: function () {
+			var store = this.options.store;
+			store && store.set(this);
+		},
+
+
+		/**
+		 * For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.
+		 * @param   {HTMLElement}  el
+		 * @param   {String}       [selector]  default: `options.draggable`
+		 * @returns {HTMLElement|null}
+		 */
+		closest: function (el, selector) {
+			return _closest(el, selector || this.options.draggable, this.el);
+		},
+
+
+		/**
+		 * Set/get option
+		 * @param   {string} name
+		 * @param   {*}      [value]
+		 * @returns {*}
+		 */
+		option: function (name, value) {
+			var options = this.options;
+
+			if (value === void 0) {
+				return options[name];
+			} else {
+				options[name] = value;
+
+				if (name === 'group') {
+					_prepareGroup(options);
+				}
+			}
+		},
+
+
+		/**
+		 * Destroy
+		 */
+		destroy: function () {
+			var el = this.el;
+
+			el[expando] = null;
+
+			_off(el, 'mousedown', this._onTapStart);
+			_off(el, 'touchstart', this._onTapStart);
+
+			if (this.nativeDraggable) {
+				_off(el, 'dragover', this);
+				_off(el, 'dragenter', this);
+			}
+
+			// Remove draggable attributes
+			Array.prototype.forEach.call(el.querySelectorAll('[draggable]'), function (el) {
+				el.removeAttribute('draggable');
+			});
+
+			touchDragOverListeners.splice(touchDragOverListeners.indexOf(this._onDragOver), 1);
+
+			this._onDrop();
+
+			this.el = el = null;
+		}
+	};
+
+
+	function _cloneHide(state) {
+		if (cloneEl && (cloneEl.state !== state)) {
+			_css(cloneEl, 'display', state ? 'none' : '');
+			!state && cloneEl.state && rootEl.insertBefore(cloneEl, dragEl);
+			cloneEl.state = state;
+		}
+	}
+
+
+	function _closest(/**HTMLElement*/el, /**String*/selector, /**HTMLElement*/ctx) {
+		if (el) {
+			ctx = ctx || document;
+
+			do {
+				if ((selector === '>*' && el.parentNode === ctx) || _matches(el, selector)) {
+					return el;
+				}
+			}
+			while (el !== ctx && (el = el.parentNode));
+		}
+
+		return null;
+	}
+
+
+	function _globalDragOver(/**Event*/evt) {
+		if (evt.dataTransfer) {
+			evt.dataTransfer.dropEffect = 'move';
+		}
+		evt.preventDefault();
+	}
+
+
+	function _on(el, event, fn) {
+		el.addEventListener(event, fn, false);
+	}
+
+
+	function _off(el, event, fn) {
+		el.removeEventListener(event, fn, false);
+	}
+
+
+	function _toggleClass(el, name, state) {
+		if (el) {
+			if (el.classList) {
+				el.classList[state ? 'add' : 'remove'](name);
+			}
+			else {
+				var className = (' ' + el.className + ' ').replace(RSPACE, ' ').replace(' ' + name + ' ', ' ');
+				el.className = (className + (state ? ' ' + name : '')).replace(RSPACE, ' ');
+			}
+		}
+	}
+
+
+	function _css(el, prop, val) {
+		var style = el && el.style;
+
+		if (style) {
+			if (val === void 0) {
+				if (document.defaultView && document.defaultView.getComputedStyle) {
+					val = document.defaultView.getComputedStyle(el, '');
+				}
+				else if (el.currentStyle) {
+					val = el.currentStyle;
+				}
+
+				return prop === void 0 ? val : val[prop];
+			}
+			else {
+				if (!(prop in style)) {
+					prop = '-webkit-' + prop;
+				}
+
+				style[prop] = val + (typeof val === 'string' ? '' : 'px');
+			}
+		}
+	}
+
+
+	function _find(ctx, tagName, iterator) {
+		if (ctx) {
+			var list = ctx.getElementsByTagName(tagName), i = 0, n = list.length;
+
+			if (iterator) {
+				for (; i < n; i++) {
+					iterator(list[i], i);
+				}
+			}
+
+			return list;
+		}
+
+		return [];
+	}
+
+
+
+	function _dispatchEvent(sortable, rootEl, name, targetEl, fromEl, startIndex, newIndex) {
+		var evt = document.createEvent('Event'),
+			options = (sortable || rootEl[expando]).options,
+			onName = 'on' + name.charAt(0).toUpperCase() + name.substr(1);
+
+		evt.initEvent(name, true, true);
+
+		evt.to = rootEl;
+		evt.from = fromEl || rootEl;
+		evt.item = targetEl || rootEl;
+		evt.clone = cloneEl;
+
+		evt.oldIndex = startIndex;
+		evt.newIndex = newIndex;
+
+		rootEl.dispatchEvent(evt);
+
+		if (options[onName]) {
+			options[onName].call(sortable, evt);
+		}
+	}
+
+
+	function _onMove(fromEl, toEl, dragEl, dragRect, targetEl, targetRect) {
+		var evt,
+			sortable = fromEl[expando],
+			onMoveFn = sortable.options.onMove,
+			retVal;
+
+		evt = document.createEvent('Event');
+		evt.initEvent('move', true, true);
+
+		evt.to = toEl;
+		evt.from = fromEl;
+		evt.dragged = dragEl;
+		evt.draggedRect = dragRect;
+		evt.related = targetEl || toEl;
+		evt.relatedRect = targetRect || toEl.getBoundingClientRect();
+
+		fromEl.dispatchEvent(evt);
+
+		if (onMoveFn) {
+			retVal = onMoveFn.call(sortable, evt);
+		}
+
+		return retVal;
+	}
+
+
+	function _disableDraggable(el) {
+		el.draggable = false;
+	}
+
+
+	function _unsilent() {
+		_silent = false;
+	}
+
+
+	/** @returns {HTMLElement|false} */
+	function _ghostIsLast(el, evt) {
+		var lastEl = el.lastElementChild,
+				rect = lastEl.getBoundingClientRect();
+
+		return ((evt.clientY - (rect.top + rect.height) > 5) || (evt.clientX - (rect.right + rect.width) > 5)) && lastEl; // min delta
+	}
+
+
+	/**
+	 * Generate id
+	 * @param   {HTMLElement} el
+	 * @returns {String}
+	 * @private
+	 */
+	function _generateId(el) {
+		var str = el.tagName + el.className + el.src + el.href + el.textContent,
+			i = str.length,
+			sum = 0;
+
+		while (i--) {
+			sum += str.charCodeAt(i);
+		}
+
+		return sum.toString(36);
+	}
+
+	/**
+	 * Returns the index of an element within its parent for a selected set of
+	 * elements
+	 * @param  {HTMLElement} el
+	 * @param  {selector} selector
+	 * @return {number}
+	 */
+	function _index(el, selector) {
+		var index = 0;
+
+		if (!el || !el.parentNode) {
+			return -1;
+		}
+
+		while (el && (el = el.previousElementSibling)) {
+			if ((el.nodeName.toUpperCase() !== 'TEMPLATE') && (selector === '>*' || _matches(el, selector))) {
+				index++;
+			}
+		}
+
+		return index;
+	}
+
+	function _matches(/**HTMLElement*/el, /**String*/selector) {
+		if (el) {
+			selector = selector.split('.');
+
+			var tag = selector.shift().toUpperCase(),
+				re = new RegExp('\\s(' + selector.join('|') + ')(?=\\s)', 'g');
+
+			return (
+				(tag === '' || el.nodeName.toUpperCase() == tag) &&
+				(!selector.length || ((' ' + el.className + ' ').match(re) || []).length == selector.length)
+			);
+		}
+
+		return false;
+	}
+
+	function _throttle(callback, ms) {
+		var args, _this;
+
+		return function () {
+			if (args === void 0) {
+				args = arguments;
+				_this = this;
+
+				setTimeout(function () {
+					if (args.length === 1) {
+						callback.call(_this, args[0]);
+					} else {
+						callback.apply(_this, args);
+					}
+
+					args = void 0;
+				}, ms);
+			}
+		};
+	}
+
+	function _extend(dst, src) {
+		if (dst && src) {
+			for (var key in src) {
+				if (src.hasOwnProperty(key)) {
+					dst[key] = src[key];
+				}
+			}
+		}
+
+		return dst;
+	}
+
+
+	// Export utils
+	Sortable.utils = {
+		on: _on,
+		off: _off,
+		css: _css,
+		find: _find,
+		is: function (el, selector) {
+			return !!_closest(el, selector, el);
+		},
+		extend: _extend,
+		throttle: _throttle,
+		closest: _closest,
+		toggleClass: _toggleClass,
+		index: _index
+	};
+
+
+	/**
+	 * Create sortable instance
+	 * @param {HTMLElement}  el
+	 * @param {Object}      [options]
+	 */
+	Sortable.create = function (el, options) {
+		return new Sortable(el, options);
+	};
+
+
+	// Export
+	Sortable.version = '1.4.2';
+	return Sortable;
+});