Refactor labels selector in board scope

app/assets/javascripts/boards/boards_util.js

 import { sortBy, cloneDeep } from 'lodash';
+import { isGid } from '~/graphql_shared/utils';
 import { ListType, MilestoneIDs } from './constants';
 
 export function getMilestone() {
@@ -95,6 +96,9 @@ export function fullMilestoneId(id) {
 }
 
 export function fullLabelId(label) {
+  if (isGid(label.id)) {
+    return label.id;
+  }
   if (label.project_id && label.project_id !== null) {
     return `gid://gitlab/ProjectLabel/${label.id}`;
   }

app/assets/javascripts/boards/components/board_form.vue

@@ -57,39 +57,16 @@ export default {
       type: Boolean,
       required: true,
     },
-    labelsPath: {
-      type: String,
-      required: true,
-    },
-    labelsWebUrl: {
-      type: String,
-      required: true,
-    },
     scopedIssueBoardFeatureEnabled: {
       type: Boolean,
       required: false,
       default: false,
     },
-    projectId: {
-      type: Number,
-      required: false,
-      default: 0,
-    },
-    groupId: {
-      type: Number,
-      required: false,
-      default: 0,
-    },
     weights: {
       type: Array,
       required: false,
       default: () => [],
     },
-    enableScopedLabels: {
-      type: Boolean,
-      required: false,
-      default: false,
-    },
     currentBoard: {
       type: Object,
       required: true,
@@ -288,16 +265,7 @@ export default {
       this.board.iteration_id = iterationId;
     },
     setBoardLabels(labels) {
-      labels.forEach((label) => {
-        if (label.set && !this.board.labels.find((l) => l.id === label.id)) {
-          this.board.labels.push({
-            ...label,
-            textColor: label.text_color,
-          });
-        } else if (!label.set) {
-          this.board.labels = this.board.labels.filter((selected) => selected.id !== label.id);
-        }
-      });
+      this.board.labels = labels;
     },
     setAssignee(assigneeId) {
       this.$set(this.board, 'assignee', {
@@ -371,11 +339,6 @@ export default {
         :collapse-scope="isNewForm"
         :board="board"
         :can-admin-board="canAdminBoard"
-        :labels-path="labelsPath"
-        :labels-web-url="labelsWebUrl"
-        :enable-scoped-labels="enableScopedLabels"
-        :project-id="projectId"
-        :group-id="groupId"
         :weights="weights"
         @set-iteration="setIteration"
         @set-board-labels="setBoardLabels"

app/assets/javascripts/boards/components/boards_selector.vue

@@ -64,22 +64,6 @@ export default {
       type: Boolean,
       required: true,
     },
-    labelsPath: {
-      type: String,
-      required: true,
-    },
-    labelsWebUrl: {
-      type: String,
-      required: true,
-    },
-    projectId: {
-      type: Number,
-      required: true,
-    },
-    groupId: {
-      type: Number,
-      required: true,
-    },
     scopedIssueBoardFeatureEnabled: {
       type: Boolean,
       required: true,
@@ -88,11 +72,6 @@ export default {
       type: Array,
       required: true,
     },
-    enabledScopedLabels: {
-      type: Boolean,
-      required: false,
-      default: false,
-    },
   },
   data() {
     return {
@@ -354,14 +333,9 @@ export default {
 
       <board-form
         v-if="currentPage"
-        :labels-path="labelsPath"
-        :labels-web-url="labelsWebUrl"
-        :project-id="projectId"
-        :group-id="groupId"
         :can-admin-board="canAdminBoard"
         :scoped-issue-board-feature-enabled="scopedIssueBoardFeatureEnabled"
         :weights="weights"
-        :enable-scoped-labels="enabledScopedLabels"
         :current-board="currentBoard"
         :current-page="currentPage"
         @cancel="cancel"

app/assets/javascripts/boards/index.js

@@ -142,5 +142,7 @@ export default () => {
     fullPath: $boardApp.dataset.fullPath,
     rootPath: $boardApp.dataset.boardsEndpoint,
     recentBoardsEndpoint: $boardApp.dataset.recentBoardsEndpoint,
+    allowScopedLabels: $boardApp.dataset.scopedLabels,
+    labelsManagePath: $boardApp.dataset.labelsManagePath,
   });
 };

app/assets/javascripts/boards/mount_multiple_boards_switcher.js

@@ -13,6 +13,7 @@ const apolloProvider = new VueApollo({
 
 export default (params = {}) => {
   const boardsSwitcherElement = document.getElementById('js-multiple-boards-switcher');
+  const { dataset } = boardsSwitcherElement;
   return new Vue({
     el: boardsSwitcherElement,
     components: {
@@ -24,18 +25,17 @@ export default (params = {}) => {
       fullPath: params.fullPath,
       rootPath: params.rootPath,
       recentBoardsEndpoint: params.recentBoardsEndpoint,
+      allowScopedLabels: params.allowScopedLabels,
+      labelsManagePath: params.labelsManagePath,
+      allowLabelCreate: parseBoolean(dataset.canAdminBoard),
     },
     data() {
-      const { dataset } = boardsSwitcherElement;
-
       const boardsSelectorProps = {
         ...dataset,
         currentBoard: JSON.parse(dataset.currentBoard),
         hasMissingBoards: parseBoolean(dataset.hasMissingBoards),
         canAdminBoard: parseBoolean(dataset.canAdminBoard),
         multipleIssueBoardsAvailable: parseBoolean(dataset.multipleIssueBoardsAvailable),
-        projectId: dataset.projectId ? Number(dataset.projectId) : 0,
-        groupId: Number(dataset.groupId),
         scopedIssueBoardFeatureEnabled: parseBoolean(dataset.scopedIssueBoardFeatureEnabled),
         weights: JSON.parse(dataset.weights),
       };

app/assets/javascripts/graphql_shared/queries/group_users_search.query.graphql

@@ -3,6 +3,7 @@
 
 query usersSearch($search: String!, $fullPath: ID!) {
   workspace: group(fullPath: $fullPath) {
+    id
     users: groupMembers(search: $search, relations: [DIRECT, INHERITED]) {
       nodes {
         user {

app/assets/javascripts/graphql_shared/queries/project_user_members_search.query.graphql

 query searchProjectMembers($fullPath: ID!, $search: String) {
   project(fullPath: $fullPath) {
+    id
     projectMembers(search: $search) {
       nodes {
         user {

app/assets/javascripts/vue_shared/components/dropdown/dropdown_widget/dropdown_widget.vue

@@ -45,7 +45,7 @@ export default {
       default: false,
     },
     selected: {
-      type: Object,
+      type: [Object, Array],
       required: false,
       default: () => {},
     },
@@ -54,6 +54,11 @@ export default {
       required: false,
       default: '',
     },
+    allowMultiselect: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
   },
   computed: {
     isSearchEmpty() {
@@ -66,8 +71,14 @@ export default {
   methods: {
     selectOption(option) {
       this.$emit('set-option', option || null);
+      if (!this.allowMultiselect) {
+        this.$refs.dropdown.hide();
+      }
     },
     isSelected(option) {
+      if (Array.isArray(this.selected)) {
+        return this.selected.some((label) => label.title === option.title);
+      }
       return (
         this.selected &&
         ((option.name && this.selected.name === option.name) ||
@@ -78,7 +89,7 @@ export default {
       this.$refs.dropdown.show();
     },
     setFocus() {
-      this.$refs.search.focusInput();
+      this.$refs.search?.focusInput();
     },
     setSearchTerm(search) {
       this.$emit('set-search', search);
@@ -108,6 +119,7 @@ export default {
     @shown="setFocus"
   >
     <template #header>
+      <slot name="header">
         <gl-search-box-by-type
           ref="search"
           :value="searchTerm"
@@ -115,7 +127,9 @@ export default {
           class="js-dropdown-input-field"
           @input="setSearchTerm"
         />
+      </slot>
     </template>
+    <slot name="default">
       <gl-dropdown-form class="gl-relative gl-min-h-7">
         <gl-loading-icon
           v-if="isLoading"
@@ -130,7 +144,7 @@ export default {
               :is-checked="isSelected(option)"
               :is-check-centered="true"
               :is-check-item="true"
-            @click="selectOption(option)"
+              @click.native.capture.stop="selectOption(option)"
             >
               <slot name="preset-item" :item="option">
                 {{ option.title }}
@@ -147,7 +161,7 @@ export default {
             :avatar-url="avatarUrl(option)"
             :secondary-text="secondaryText(option)"
             data-testid="unselected-option"
-          @click="selectOption(option)"
+            @click.native.capture.stop="selectOption(option)"
           >
             <slot name="item" :item="option">
               {{ option.title }}
@@ -158,6 +172,7 @@ export default {
           </gl-dropdown-item>
         </template>
       </gl-dropdown-form>
+    </slot>
     <template #footer>
       <slot name="footer"></slot>
     </template>

app/assets/javascripts/vue_shared/components/sidebar/labels_select_widget/dropdown_contents_create_view.vue

@@ -32,11 +32,6 @@ export default {
       type: String,
       required: true,
     },
-    issuableType: {
-      type: String,
-      required: false,
-      default: undefined,
-    },
     workspaceType: {
       type: String,
       required: true,

app/assets/javascripts/vue_shared/components/sidebar/labels_select_widget/dropdown_header.vue

@@ -39,7 +39,7 @@ export default {
   },
   methods: {
     focusInput() {
-      this.$refs.searchInput.focusInput();
+      this.$refs.searchInput?.focusInput();
     },
   },
 };

app/assets/javascripts/vue_shared/components/sidebar/labels_select_widget/graphql/group_labels.query.graphql

@@ -2,7 +2,8 @@
 
 query groupLabels($fullPath: ID!, $searchTerm: String) {
   workspace: group(fullPath: $fullPath) {
-    labels(searchTerm: $searchTerm, onlyGroupLabels: true) {
+    id
+    labels(searchTerm: $searchTerm, onlyGroupLabels: true, includeAncestorGroups: true) {
       nodes {
         ...Label
       }

app/assets/javascripts/vue_shared/components/sidebar/labels_select_widget/graphql/project_labels.query.graphql

@@ -2,6 +2,7 @@
 
 query projectLabels($fullPath: ID!, $searchTerm: String) {
   workspace: project(fullPath: $fullPath) {
+    id
     labels(searchTerm: $searchTerm, includeAncestorGroups: true) {
       nodes {
         ...Label

app/views/shared/boards/_switcher.html.haml

@@ -9,9 +9,5 @@
     has_missing_boards: (!multiple_boards_available? && current_board_parent.boards.size > 1).to_s,
     can_admin_board: can?(current_user, :admin_issue_board, parent).to_s,
     multiple_issue_boards_available: parent.multiple_issue_boards_available?.to_s,
-    labels_path: labels_filter_path_with_defaults(only_group_labels: true, include_descendant_groups: true),
-    labels_web_url: parent.is_a?(Project) ? project_labels_path(@project) : group_labels_path(@group),
-    project_id: @project&.id,
-    group_id: @group&.id,
     scoped_issue_board_feature_enabled: Gitlab.ee? && parent.feature_available?(:scoped_issue_board) ? 'true' : 'false',
     weights: weights.to_json } }

ee/app/assets/javascripts/boards/components/assignee_select.vue

@@ -29,16 +29,6 @@ export default {
       required: false,
       default: false,
     },
-    groupId: {
-      type: Number,
-      required: false,
-      default: 0,
-    },
-    projectId: {
-      type: Number,
-      required: false,
-      default: 0,
-    },
   },
   data() {
     return {

ee/app/assets/javascripts/boards/components/board_scope.vue

 <script>
 import { mapGetters } from 'vuex';
 import { __ } from '~/locale';
-import LabelsSelect from '~/vue_shared/components/sidebar/labels_select_vue/labels_select_root.vue';
 import AssigneeSelect from './assignee_select.vue';
 import BoardScopeCurrentIteration from './board_scope_current_iteration.vue';
+import BoardLabelsSelect from './labels_select.vue';
 import BoardMilestoneSelect from './milestone_select.vue';
 import BoardWeightSelect from './weight_select.vue';
 
 export default {
   components: {
     AssigneeSelect,
-    LabelsSelect,
+    BoardLabelsSelect,
     BoardMilestoneSelect,
     BoardScopeCurrentIteration,
     BoardWeightSelect,
@@ -28,29 +28,6 @@ export default {
       type: Object,
       required: true,
     },
-    labelsPath: {
-      type: String,
-      required: true,
-    },
-    labelsWebUrl: {
-      type: String,
-      required: true,
-    },
-    enableScopedLabels: {
-      type: Boolean,
-      required: false,
-      default: false,
-    },
-    projectId: {
-      type: Number,
-      required: false,
-      default: 0,
-    },
-    groupId: {
-      type: Number,
-      required: false,
-      default: 0,
-    },
     weights: {
       type: Array,
       required: false,
@@ -103,8 +80,6 @@ export default {
       <board-milestone-select
         v-if="isIssueBoard"
         :board="board"
-        :group-id="groupId"
-        :project-id="projectId"
         :can-edit="canAdminBoard"
         @set-milestone="$emit('set-milestone', $event)"
       />
@@ -116,33 +91,17 @@ export default {
         @set-iteration="$emit('set-iteration', $event)"
       />
 
-      <labels-select
-        :allow-label-edit="canAdminBoard"
-        :allow-label-create="canAdminBoard"
-        :allow-label-remove="canAdminBoard"
-        :allow-multiselect="true"
-        :allow-scoped-labels="enableScopedLabels"
-        :selected-labels="board.labels"
-        :hide-collapsed-view="true"
-        :labels-fetch-path="labelsPath"
-        :labels-manage-path="labelsWebUrl"
-        :labels-filter-base-path="labelsWebUrl"
-        :labels-list-title="__('Select labels')"
-        :dropdown-button-text="__('Choose labels')"
-        variant="sidebar"
-        class="block labels"
+      <board-labels-select
+        :board="board"
+        :can-edit="canAdminBoard"
         @onLabelRemove="handleLabelRemove"
-        @updateSelectedLabels="handleLabelClick"
-      >
-        {{ __('Any label') }}
-      </labels-select>
+        @set-labels="handleLabelClick"
+      />
 
       <assignee-select
         v-if="isIssueBoard"
         :board="board"
         :can-edit="canAdminBoard"
-        :project-id="projectId"
-        :group-id="groupId"
         @set-assignee="$emit('set-assignee', $event)"
       />
 

ee/app/assets/javascripts/boards/components/labels_select.vue

+<script>
+import { GlButton } from '@gitlab/ui';
+import { debounce } from 'lodash';
+import { mapActions, mapGetters, mapState } from 'vuex';
+import { getIdFromGraphQLId } from '~/graphql_shared/utils';
+import LabelItem from '~/vue_shared/components/sidebar/labels_select_widget/label_item.vue';
+import searchGroupLabels from '~/vue_shared/components/sidebar/labels_select_widget/graphql/group_labels.query.graphql';
+import searchProjectLabels from '~/vue_shared/components/sidebar/labels_select_widget/graphql/project_labels.query.graphql';
+import { __, s__, sprintf } from '~/locale';
+import DropdownValue from '~/vue_shared/components/sidebar/labels_select_widget/dropdown_value.vue';
+import DropdownContentsCreateView from '~/vue_shared/components/sidebar/labels_select_widget/dropdown_contents_create_view.vue';
+import DropdownHeader from '~/vue_shared/components/sidebar/labels_select_widget/dropdown_header.vue';
+import DropdownFooter from '~/vue_shared/components/sidebar/labels_select_widget/dropdown_footer.vue';
+import DropdownWidget from '~/vue_shared/components/dropdown/dropdown_widget/dropdown_widget.vue';
+
+export default {
+  components: {
+    DropdownWidget,
+    GlButton,
+    LabelItem,
+    DropdownValue,
+    DropdownContentsCreateView,
+    DropdownHeader,
+    DropdownFooter,
+  },
+  inject: ['fullPath'],
+  props: {
+    board: {
+      type: Object,
+      required: true,
+    },
+    canEdit: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
+  },
+  data() {
+    return {
+      search: '',
+      labels: [],
+      selected: this.board.labels,
+      isEditing: false,
+      showDropdownContentsCreateView: false,
+    };
+  },
+  apollo: {
+    labels: {
+      query() {
+        return this.isProjectBoard ? searchProjectLabels : searchGroupLabels;
+      },
+      variables() {
+        return {
+          fullPath: this.fullPath,
+          searchTerm: this.search,
+          first: 20,
+        };
+      },
+      skip() {
+        return !this.isEditing;
+      },
+      update(data) {
+        return data.workspace?.labels?.nodes.map((label) => ({
+          ...label,
+          id: getIdFromGraphQLId(label.id),
+        }));
+      },
+      error() {
+        this.setError({ message: this.$options.i18n.errorSearchingLabels });
+      },
+    },
+  },
+  computed: {
+    ...mapState(['boardType']),
+    ...mapGetters(['isProjectBoard']),
+    isLabelsEmpty() {
+      return this.selected.length === 0;
+    },
+    selectedLabelsIds() {
+      return this.selected.map((label) => label.id);
+    },
+    isLoading() {
+      return this.$apollo.queries.labels.loading;
+    },
+    selectText() {
+      if (!this.selected.length) {
+        return this.$options.i18n.selectLabel;
+      } else if (this.selected.length > 1) {
+        return sprintf(s__('LabelSelect|%{firstLabelName} +%{remainingLabelCount} more'), {
+          firstLabelName: this.selected[0].title,
+          remainingLabelCount: this.selected.length - 1,
+        });
+      }
+      return this.selected[0].title;
+    },
+    footerCreateLabelTitle() {
+      return sprintf(__('Create %{workspace} label'), {
+        workspace: this.boardType,
+      });
+    },
+    footerManageLabelTitle() {
+      return sprintf(__('Manage %{workspace} labels'), {
+        workspace: this.boardType,
+      });
+    },
+    labelType() {
+      return this.boardType;
+    },
+  },
+  methods: {
+    ...mapActions(['setError']),
+    isLabelSelected(label) {
+      return this.selectedLabelsIds.includes(label.id);
+    },
+    selectLabel(label) {
+      let labels = [];
+      if (this.isLabelSelected(label)) {
+        labels = this.selected.filter(({ id }) => id !== label.id);
+      } else {
+        labels = [...this.selected, label];
+      }
+      this.selected = labels;
+      this.$emit('set-labels', labels);
+    },
+    onLabelRemove(labelId) {
+      const labels = this.selected.filter(({ id }) => getIdFromGraphQLId(id) !== labelId);
+      this.selected = labels;
+      this.$emit('set-labels', labels);
+    },
+    toggleEdit() {
+      if (!this.isEditing) {
+        this.showDropdown();
+      } else {
+        this.hideDropdown();
+      }
+    },
+    showDropdown() {
+      this.isEditing = true;
+      this.$refs.editDropdown.showDropdown();
+      debounce(() => {
+        this.setFocus();
+      }, 50)();
+    },
+    hideDropdown() {
+      this.isEditing = false;
+    },
+    setSearch(search) {
+      this.search = search;
+    },
+    toggleDropdownContentsCreateView() {
+      this.showDropdownContentsCreateView = !this.showDropdownContentsCreateView;
+    },
+    toggleDropdownContent() {
+      this.toggleDropdownContentsCreateView();
+      // Required to recalculate dropdown position as its size changes
+      if (this.$refs.editDropdown?.$refs.dropdown?.$refs.dropdown) {
+        this.$refs.editDropdown.$refs.dropdown.$refs.dropdown.$_popper.scheduleUpdate();
+      }
+    },
+    setFocus() {
+      this.$refs.header?.focusInput();
+    },
+  },
+  i18n: {
+    label: s__('BoardScope|Labels'),
+    anyLabel: s__('BoardScope|Any label'),
+    selectLabel: s__('BoardScope|Choose labels'),
+    dropdownTitleText: s__('BoardScope|Select labels'),
+    errorSearchingLabels: s__(
+      'BoardScope|An error occurred while searching for labels, please try again.',
+    ),
+    edit: s__('BoardScope|Edit'),
+  },
+};
+</script>
+
+<template>
+  <div class="block labels labels-select-wrapper">
+    <div class="title gl-mb-3">
+      {{ $options.i18n.label }}
+      <gl-button
+        v-if="canEdit"
+        category="tertiary"
+        size="small"
+        class="edit-link float-right"
+        @click="toggleEdit"
+      >
+        {{ $options.i18n.edit }}
+      </gl-button>
+    </div>
+    <div class="gl-text-gray-500 gl-mb-2" data-testid="selected-labels">
+      <div v-if="isLabelsEmpty">{{ $options.i18n.anyLabel }}</div>
+      <dropdown-value
+        v-else
+        :disable-labels="isLoading"
+        :selected-labels="selected"
+        :allow-label-remove="canEdit"
+        :labels-filter-base-path="''"
+        :labels-filter-param="'label_name'"
+        class="gl-mb-2"
+        @onLabelRemove="onLabelRemove"
+      />
+    </div>
+
+    <dropdown-widget
+      v-show="isEditing"
+      ref="editDropdown"
+      :select-text="selectText"
+      :options="labels"
+      :is-loading="isLoading"
+      :selected="selected"
+      :search-term="search"
+      :allow-multiselect="true"
+      data-testid="labels-select-contents-list"
+      @hide="hideDropdown"
+      @set-option="selectLabel"
+      @set-search="setSearch"
+    >
+      <template #header>
+        <dropdown-header
+          ref="header"
+          v-model="search"
+          :labels-create-title="footerCreateLabelTitle"
+          :labels-list-title="$options.i18n.dropdownTitleText"
+          :show-dropdown-contents-create-view="showDropdownContentsCreateView"
+          @toggleDropdownContentsCreateView="toggleDropdownContent"
+          @closeDropdown="hideDropdown"
+          @input="setSearch"
+        />
+      </template>
+      <template #item="{ item }">
+        <label-item :label="item" />
+      </template>
+      <template v-if="showDropdownContentsCreateView" #default>
+        <dropdown-contents-create-view
+          :full-path="fullPath"
+          :workspace-type="boardType"
+          :attr-workspace-path="fullPath"
+          :label-create-type="labelType"
+          @hideCreateView="toggleDropdownContent"
+        />
+      </template>
+      <template #footer>
+        <dropdown-footer
+          v-if="!showDropdownContentsCreateView"
+          :footer-create-label-title="footerCreateLabelTitle"
+          :footer-manage-label-title="footerManageLabelTitle"
+          @toggleDropdownContentsCreateView="toggleDropdownContent"
+        />
+      </template>
+    </dropdown-widget>
+  </div>
+</template>

ee/app/assets/javascripts/boards/components/milestone_select.vue

@@ -23,16 +23,6 @@ export default {
       type: Object,
       required: true,
     },
-    groupId: {
-      type: Number,
-      required: false,
-      default: 0,
-    },
-    projectId: {
-      type: Number,
-      required: false,
-      default: 0,
-    },
     canEdit: {
       type: Boolean,
       required: false,

ee/spec/features/boards/scoped_issue_board_spec.rb

@@ -116,7 +116,7 @@ RSpec.describe 'Scoped issue boards', :js do
 
           page.within('.labels') do
             click_button 'Edit'
-            page.within('.labels-select-contents-list') do
+            page.within('[data-testid="labels-select-contents-list"]') do
               expect(page).to have_content(group_label.title)
               expect(page).not_to have_content(project_label.title)
             end
@@ -381,7 +381,7 @@ RSpec.describe 'Scoped issue boards', :js do
 
             page.within('.labels') do
               click_button 'Edit'
-              page.within('.labels-select-contents-list') do
+              page.within('[data-testid="labels-select-contents-list"]') do
                 expect(page).to have_content(group_label.title)
                 expect(page).not_to have_content(project_label.title)
               end
@@ -581,7 +581,7 @@ RSpec.describe 'Scoped issue boards', :js do
         click_button 'Edit'
 
         if value.is_a?(Array)
-          value.each { |value| click_link value }
+          value.each { |value| click_on value }
         elsif filter == 'weight'
           page.within(".dropdown-menu") do
             click_button value

ee/spec/features/epic_boards/epic_boards_spec.rb

@@ -351,7 +351,7 @@ RSpec.describe 'epic boards', :js do
       if value.is_a?(Array)
         value.each { |value| click_link value }
       else
-        click_link value
+        click_on value
       end
     end
   end

ee/spec/features/labels_hierarchy_spec.rb

@@ -39,7 +39,7 @@ RSpec.describe 'Labels Hierarchy', :js do
 
           wait_for_requests
 
-          click_link label.title
+          click_on label.title
         end
 
         click_button 'Save changes'

ee/spec/frontend/boards/components/assignee_select_spec.js

@@ -35,6 +35,9 @@ describe('Assignee select component', () => {
   const createStore = ({ isGroupBoard = false, isProjectBoard = false } = {}) => {
     store = new Vuex.Store({
       ...defaultStore,
+      actions: {
+        setError: jest.fn(),
+      },
       getters: {
         isGroupBoard: () => isGroupBoard,
         isProjectBoard: () => isProjectBoard,

ee/spec/frontend/boards/components/board_form_spec.js

@@ -8,7 +8,6 @@ import createEpicBoardMutation from 'ee/boards/graphql/epic_board_create.mutatio
 import destroyEpicBoardMutation from 'ee/boards/graphql/epic_board_destroy.mutation.graphql';
 import updateEpicBoardMutation from 'ee/boards/graphql/epic_board_update.mutation.graphql';
 
-import { TEST_HOST } from 'helpers/test_constants';
 import waitForPromises from 'helpers/wait_for_promises';
 
 import { formType } from '~/boards/constants';
@@ -37,8 +36,6 @@ const currentBoard = {
 
 const defaultProps = {
   canAdminBoard: false,
-  labelsPath: `${TEST_HOST}/labels/path`,
-  labelsWebUrl: `${TEST_HOST}/-/labels`,
   currentBoard,
   currentPage: '',
 };

ee/spec/frontend/boards/components/board_scope_spec.js

@@ -2,8 +2,9 @@ import { mount } from '@vue/test-utils';
 import Vue, { nextTick } from 'vue';
 import Vuex from 'vuex';
 import BoardScope from 'ee/boards/components/board_scope.vue';
-import { TEST_HOST } from 'helpers/test_constants';
-import LabelsSelect from '~/vue_shared/components/sidebar/labels_select_vue/labels_select_root.vue';
+import BoardLabelsSelect from 'ee/boards/components/labels_select.vue';
+
+import { mockLabel1 } from 'jest/boards/mock_data';
 
 Vue.use(Vuex);
 
@@ -26,17 +27,16 @@ describe('BoardScope', () => {
       store,
       propsData: {
         collapseScope: false,
-        canAdminBoard: false,
+        canAdminBoard: true,
         board: {
           labels: [],
           assignee: {},
         },
-        labelsPath: `${TEST_HOST}/labels`,
-        labelsWebUrl: `${TEST_HOST}/-/labels`,
       },
       stubs: {
         AssigneeSelect: true,
         BoardMilestoneSelect: true,
+        BoardLabelsSelect: true,
       },
     });
   }
@@ -49,15 +49,13 @@ describe('BoardScope', () => {
     wrapper.destroy();
   });
 
-  const findLabelSelect = () => wrapper.findComponent(LabelsSelect);
+  const findLabelSelect = () => wrapper.findComponent(BoardLabelsSelect);
 
   describe('BoardScope', () => {
     it('emits selected labels to be added and removed from the board', async () => {
-      const labels = [{ id: '1', set: true, color: '#BADA55', text_color: '#FFFFFF' }];
+      const labels = [mockLabel1];
       expect(findLabelSelect().exists()).toBe(true);
-      expect(findLabelSelect().text()).toContain('Any label');
-      expect(findLabelSelect().props('selectedLabels')).toHaveLength(0);
-      findLabelSelect().vm.$emit('updateSelectedLabels', labels);
+      findLabelSelect().vm.$emit('set-labels', labels);
       await nextTick();
       expect(wrapper.emitted('set-board-labels')).toEqual([[labels]]);
     });

ee/spec/frontend/boards/components/boards_selector_spec.js

@@ -86,10 +86,6 @@ describe('BoardsSelector', () => {
         hasMissingBoards: false,
         canAdminBoard: true,
         multipleIssueBoardsAvailable: true,
-        labelsPath: `${TEST_HOST}/labels/path`,
-        labelsWebUrl: `${TEST_HOST}/labels`,
-        projectId: 42,
-        groupId: 19,
         scopedIssueBoardFeatureEnabled: true,
         weights: [],
       },

ee/spec/frontend/boards/components/labels_select_spec.js

+import { GlButton, GlDropdown, GlDropdownItem } from '@gitlab/ui';
+import { shallowMount, createLocalVue } from '@vue/test-utils';
+import { nextTick } from 'vue';
+import VueApollo from 'vue-apollo';
+import Vuex from 'vuex';
+import LabelsSelect from 'ee/boards/components/labels_select.vue';
+
+import createMockApollo from 'helpers/mock_apollo_helper';
+import waitForPromises from 'helpers/wait_for_promises';
+
+import {
+  boardObj,
+  mockProjectLabelsResponse,
+  mockGroupLabelsResponse,
+  mockLabel1,
+} from 'jest/boards/mock_data';
+
+import defaultStore from '~/boards/stores';
+import searchGroupLabels from '~/vue_shared/components/sidebar/labels_select_widget/graphql/group_labels.query.graphql';
+import searchProjectLabels from '~/vue_shared/components/sidebar/labels_select_widget/graphql/project_labels.query.graphql';
+import DropdownValue from '~/vue_shared/components/sidebar/labels_select_widget/dropdown_value.vue';
+import DropdownWidget from '~/vue_shared/components/dropdown/dropdown_widget/dropdown_widget.vue';
+
+const localVue = createLocalVue();
+localVue.use(VueApollo);
+
+describe('Labels select component', () => {
+  let wrapper;
+  let fakeApollo;
+  let store;
+
+  const selectedText = () => wrapper.find('[data-testid="selected-labels"]').text();
+  const findEditButton = () => wrapper.findComponent(GlButton);
+  const findDropdown = () => wrapper.findComponent(DropdownWidget);
+  const findDropdownValue = () => wrapper.findComponent(DropdownValue);
+
+  const projectLabelsQueryHandlerSuccess = jest.fn().mockResolvedValue(mockProjectLabelsResponse);
+  const groupLabelsQueryHandlerSuccess = jest.fn().mockResolvedValue(mockGroupLabelsResponse);
+
+  async function openLabelsDropdown() {
+    findEditButton().vm.$emit('click');
+    await waitForPromises();
+  }
+
+  const createStore = ({ isGroupBoard = false, isProjectBoard = false } = {}) => {
+    store = new Vuex.Store({
+      ...defaultStore,
+      actions: {
+        setError: jest.fn(),
+      },
+      getters: {
+        isGroupBoard: () => isGroupBoard,
+        isProjectBoard: () => isProjectBoard,
+      },
+      state: {
+        boardType: isGroupBoard ? 'group' : 'project',
+      },
+    });
+  };
+
+  const createComponent = ({ props = {} } = {}) => {
+    fakeApollo = createMockApollo([
+      [searchProjectLabels, projectLabelsQueryHandlerSuccess],
+      [searchGroupLabels, groupLabelsQueryHandlerSuccess],
+    ]);
+    wrapper = shallowMount(LabelsSelect, {
+      localVue,
+      store,
+      apolloProvider: fakeApollo,
+      propsData: {
+        board: boardObj,
+        canEdit: true,
+        ...props,
+      },
+      provide: {
+        fullPath: 'gitlab-org',
+        labelsManagePath: 'gitlab-org/labels',
+      },
+      stubs: {
+        GlDropdown,
+        GlDropdownItem,
+      },
+    });
+
+    // We need to mock out `showDropdown` which
+    // invokes `show` method of BDropdown used inside GlDropdown.
+    wrapper.vm.$refs.editDropdown.showDropdown = jest.fn();
+  };
+
+  beforeEach(() => {
+    createStore({ isProjectBoard: true });
+    createComponent();
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+    fakeApollo = null;
+    store = null;
+  });
+
+  describe('when not editing', () => {
+    it('defaults to Any label', () => {
+      expect(selectedText()).toContain('Any label');
+    });
+
+    it('skips the queries and does not render dropdown', () => {
+      expect(projectLabelsQueryHandlerSuccess).not.toHaveBeenCalled();
+      expect(findDropdown().isVisible()).toBe(false);
+    });
+
+    it('renders selected labels in DropdownValue', async () => {
+      await openLabelsDropdown();
+      findDropdown().vm.$emit('set-option', mockLabel1);
+
+      await openLabelsDropdown();
+      expect(findDropdownValue().isVisible()).toBe(true);
+      expect(findDropdownValue().props('selectedLabels')).toEqual([mockLabel1]);
+    });
+  });
+
+  describe('when editing', () => {
+    it('trigger query and renders dropdown with passed labels', async () => {
+      await openLabelsDropdown();
+      expect(projectLabelsQueryHandlerSuccess).toHaveBeenCalled();
+
+      expect(findDropdown().isVisible()).toBe(true);
+      expect(findDropdown().props('options')).toHaveLength(2);
+    });
+  });
+
+  describe('canEdit', () => {
+    it('hides Edit button', async () => {
+      wrapper.setProps({ canEdit: false });
+      await nextTick();
+
+      expect(findEditButton().exists()).toBe(false);
+    });
+
+    it('shows Edit button if true', () => {
+      expect(findEditButton().exists()).toBe(true);
+    });
+  });
+
+  it.each`
+    boardType    | mockedResponse               | queryHandler                        | notCalledHandler
+    ${'group'}   | ${mockGroupLabelsResponse}   | ${groupLabelsQueryHandlerSuccess}   | ${projectLabelsQueryHandlerSuccess}
+    ${'project'} | ${mockProjectLabelsResponse} | ${projectLabelsQueryHandlerSuccess} | ${groupLabelsQueryHandlerSuccess}
+  `(
+    'fetches $boardType labels',
+    async ({ boardType, mockedResponse, queryHandler, notCalledHandler }) => {
+      createStore({ isProjectBoard: boardType === 'project', isGroupBoard: boardType === 'group' });
+      createComponent({
+        [queryHandler]: jest.fn().mockResolvedValue(mockedResponse),
+      });
+      await openLabelsDropdown();
+
+      expect(queryHandler).toHaveBeenCalled();
+      expect(notCalledHandler).not.toHaveBeenCalled();
+    },
+  );
+});

locale/gitlab.pot

@@ -5491,6 +5491,9 @@ msgstr ""
 msgid "BoardScope|An error occurred while getting milestones, please try again."
 msgstr ""
 
+msgid "BoardScope|An error occurred while searching for labels, please try again."
+msgstr ""
+
 msgid "BoardScope|An error occurred while searching for users, please try again."
 msgstr ""
 
@@ -5500,12 +5503,21 @@ msgstr ""
 msgid "BoardScope|Any assignee"
 msgstr ""
 
+msgid "BoardScope|Any label"
+msgstr ""
+
 msgid "BoardScope|Assignee"
 msgstr ""
 
+msgid "BoardScope|Choose labels"
+msgstr ""
+
 msgid "BoardScope|Edit"
 msgstr ""
 
+msgid "BoardScope|Labels"
+msgstr ""
+
 msgid "BoardScope|Milestone"
 msgstr ""
 
@@ -5518,6 +5530,9 @@ msgstr ""
 msgid "BoardScope|Select assignee"
 msgstr ""
 
+msgid "BoardScope|Select labels"
+msgstr ""
+
 msgid "BoardScope|Select milestone"
 msgstr ""
 

spec/frontend/boards/components/board_form_spec.js

 import { GlModal } from '@gitlab/ui';
 import { shallowMount } from '@vue/test-utils';
 import setWindowLocation from 'helpers/set_window_location_helper';
-import { TEST_HOST } from 'helpers/test_constants';
 import waitForPromises from 'helpers/wait_for_promises';
 
 import BoardForm from '~/boards/components/board_form.vue';
@@ -31,8 +30,6 @@ const currentBoard = {
 
 const defaultProps = {
   canAdminBoard: false,
-  labelsPath: `${TEST_HOST}/labels/path`,
-  labelsWebUrl: `${TEST_HOST}/-/labels`,
   currentBoard,
   currentPage: '',
 };

spec/frontend/boards/components/boards_selector_spec.js

@@ -78,10 +78,6 @@ describe('BoardsSelector', () => {
         hasMissingBoards: false,
         canAdminBoard: true,
         multipleIssueBoardsAvailable: true,
-        labelsPath: `${TEST_HOST}/labels/path`,
-        labelsWebUrl: `${TEST_HOST}/labels`,
-        projectId: 42,
-        groupId: 19,
         scopedIssueBoardFeatureEnabled: true,
         weights: [],
       },

spec/frontend/boards/mock_data.js

@@ -12,6 +12,7 @@ export const boardObj = {
   id: 1,
   name: 'test',
   milestone_id: null,
+  labels: [],
 };
 
 export const listObj = {
@@ -609,3 +610,43 @@ export const mockTokens = (fetchLabels, fetchAuthors, fetchMilestones) => [
     unique: true,
   },
 ];
+
+export const mockLabel1 = {
+  id: 'gid://gitlab/GroupLabel/121',
+  title: 'To Do',
+  color: '#F0AD4E',
+  textColor: '#FFFFFF',
+  description: null,
+};
+
+export const mockLabel2 = {
+  id: 'gid://gitlab/GroupLabel/122',
+  title: 'Doing',
+  color: '#F0AD4E',
+  textColor: '#FFFFFF',
+  description: null,
+};
+
+export const mockProjectLabelsResponse = {
+  data: {
+    workspace: {
+      id: 'gid://gitlab/Project/1',
+      labels: {
+        nodes: [mockLabel1, mockLabel2],
+      },
+    },
+    __typename: 'Project',
+  },
+};
+
+export const mockGroupLabelsResponse = {
+  data: {
+    workspace: {
+      id: 'gid://gitlab/Group/1',
+      labels: {
+        nodes: [mockLabel1, mockLabel2],
+      },
+    },
+    __typename: 'Group',
+  },
+};

spec/frontend/vue_shared/components/dropdown/dropdown_widget_spec.js

@@ -34,6 +34,7 @@ describe('DropdownWidget component', () => {
     // invokes `show` method of BDropdown used inside GlDropdown.
     // Context: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/54895#note_524281679
     jest.spyOn(wrapper.vm, 'showDropdown').mockImplementation();
+    jest.spyOn(findDropdown().vm, 'hide').mockImplementation();
   };
 
   beforeEach(() => {
@@ -67,10 +68,7 @@ describe('DropdownWidget component', () => {
     });
 
     it('emits set-option event when clicking on an option', async () => {
-      wrapper
-        .findAll('[data-testid="unselected-option"]')
-        .at(1)
-        .vm.$emit('click', new Event('click'));
+      wrapper.findAll('[data-testid="unselected-option"]').at(1).trigger('click');
       await wrapper.vm.$nextTick();
 
       expect(wrapper.emitted('set-option')).toEqual([[wrapper.props().options[1]]]);

spec/frontend/vue_shared/components/sidebar/labels_select_widget/mock_data.js

@@ -92,6 +92,7 @@ export const createLabelSuccessfulResponse = {
 export const workspaceLabelsQueryResponse = {
   data: {
     workspace: {
+      id: 'gid://gitlab/Project/126',
       labels: {
         nodes: [
           {