Migrate MR threads toolbar to GitLab UI

Also remove unused styles and classes

app/assets/javascripts/notes/components/discussion_counter.vue

 <script>
 import { mapGetters, mapActions } from 'vuex';
-import { GlTooltipDirective, GlIcon } from '@gitlab/ui';
+import { GlTooltipDirective, GlIcon, GlButton, GlButtonGroup } from '@gitlab/ui';
+import { __ } from '~/locale';
 import discussionNavigation from '../mixins/discussion_navigation';
 
 export default {
@@ -9,6 +10,8 @@ export default {
   },
   components: {
     GlIcon,
+    GlButton,
+    GlButtonGroup,
   },
   mixins: [discussionNavigation],
   computed: {
@@ -34,6 +37,12 @@ export default {
     allExpanded() {
       return this.toggeableDiscussions.every(discussion => discussion.expanded);
     },
+    lineResolveClass() {
+      return this.allResolved ? 'line-resolve-btn is-active' : 'line-resolve-text';
+    },
+    toggleThreadsLabel() {
+      return this.allExpanded ? __('Collapse all threads') : __('Expand all threads');
+    },
   },
   methods: {
     ...mapActions(['setExpandDiscussions']),
@@ -51,13 +60,10 @@ export default {
   <div
     v-if="resolvableDiscussionsCount > 0"
     ref="discussionCounter"
-    class="line-resolve-all-container full-width-mobile"
+    class="line-resolve-all-container full-width-mobile gl-display-flex d-sm-flex"
   >
-    <div class="full-width-mobile d-flex d-sm-flex">
     <div class="line-resolve-all">
-        <span
-          :class="{ 'line-resolve-btn is-active': allResolved, 'line-resolve-text': !allResolved }"
-        >
+      <span :class="lineResolveClass">
         <template v-if="allResolved">
           <gl-icon name="check-circle-filled" />
           {{ __('All threads resolved') }}
@@ -67,43 +73,36 @@ export default {
         </template>
       </span>
     </div>
-      <div
+    <gl-button-group>
+      <gl-button
         v-if="resolveAllDiscussionsIssuePath && !allResolved"
-        class="btn-group btn-group-sm"
-        role="group"
-      >
-        <a
         v-gl-tooltip
         :href="resolveAllDiscussionsIssuePath"
         :title="s__('Resolve all threads in new issue')"
-          class="new-issue-for-discussion btn btn-default discussion-create-issue-btn"
-        >
-          <gl-icon name="issue-new" />
-        </a>
-      </div>
-      <div v-if="isLoggedIn && !allResolved" class="btn-group btn-group-sm" role="group">
-        <button
+        :aria-label="s__('Resolve all threads in new issue')"
+        class="new-issue-for-discussion discussion-create-issue-btn"
+        icon="issue-new"
+      />
+      <gl-button
+        v-if="isLoggedIn && !allResolved"
         v-gl-tooltip
         :title="__('Jump to next unresolved thread')"
-          class="btn btn-default discussion-next-btn"
+        :aria-label="__('Jump to next unresolved thread')"
+        class="discussion-next-btn"
         data-track-event="click_button"
         data-track-label="mr_next_unresolved_thread"
         data-track-property="click_next_unresolved_thread_top"
+        icon="comment-next"
         @click="jumpToNextDiscussion"
-        >
-          <gl-icon name="comment-next" />
-        </button>
-      </div>
-      <div class="btn-group btn-group-sm" role="group">
-        <button
+      />
+      <gl-button
         v-gl-tooltip
-          :title="__('Toggle all threads')"
-          class="btn btn-default toggle-all-discussions-btn"
+        :title="toggleThreadsLabel"
+        :aria-label="toggleThreadsLabel"
+        class="toggle-all-discussions-btn"
+        :icon="allExpanded ? 'angle-up' : 'angle-down'"
         @click="handleExpandDiscussions"
-        >
-          <gl-icon :name="allExpanded ? 'angle-up' : 'angle-down'" />
-        </button>
-      </div>
-    </div>
+      />
+    </gl-button-group>
   </div>
 </template>

app/assets/stylesheets/pages/notes.scss

@@ -858,68 +858,28 @@ $note-form-margin-left: 72px;
 }
 
 .line-resolve-all-container {
-  margin: $gl-padding-4;
-
   > div {
     white-space: nowrap;
   }
 
-  .discussion-next-btn {
-    border-radius: 0;
-  }
-
-  .toggle-all-discussions-btn {
+  .btn-group .btn:first-child {
     border-top-left-radius: 0;
     border-bottom-left-radius: 0;
   }
-
-  .btn {
-    line-height: $gl-line-height;
-
-    svg {
-      fill: $gray-500;
-    }
-
-    &.discussion-create-issue-btn {
-      border-radius: 0;
-      border-right: 0;
-
-      a {
-        padding: 0;
-        line-height: 0;
-
-        &:hover {
-          text-decoration: none;
-          border: 0;
-        }
-      }
-    }
-
-    &.discussion-next-btn {
-      border-right: 0;
-    }
-  }
 }
 
 .line-resolve-all {
   vertical-align: middle;
   display: inline-block;
-  padding: $gl-padding-4 10px;
+  padding: $gl-padding-8 $gl-padding-12;
   background-color: $gray-light;
   border: 1px solid $border-color;
+  border-right: 0;
   border-radius: $border-radius-default;
-  font-size: $gl-btn-small-font-size;
   border-top-right-radius: 0;
   border-bottom-right-radius: 0;
-  border-right: 0;
-
-  .line-resolve-btn {
-    color: $gray-500;
-
-    svg {
-      vertical-align: text-top;
-    }
-  }
+  font-size: $gl-font-size;
+  line-height: 1rem;
 
   @include media-breakpoint-down(xs) {
     flex: 1;

locale/gitlab.pot

@@ -6382,6 +6382,9 @@ msgstr ""
 msgid "Collapse"
 msgstr ""
 
+msgid "Collapse all threads"
+msgstr ""
+
 msgid "Collapse approvers"
 msgstr ""
 
@@ -10458,6 +10461,9 @@ msgstr ""
 msgid "Expand all files"
 msgstr ""
 
+msgid "Expand all threads"
+msgstr ""
+
 msgid "Expand approvers"
 msgstr ""
 
@@ -26807,9 +26813,6 @@ msgstr ""
 msgid "Toggle Sidebar"
 msgstr ""
 
-msgid "Toggle all threads"
-msgstr ""
-
 msgid "Toggle backtrace"
 msgstr ""
 

spec/frontend/notes/components/discussion_counter_spec.js

 import Vuex from 'vuex';
 import { shallowMount, createLocalVue } from '@vue/test-utils';
-import { GlIcon } from '@gitlab/ui';
+import { GlButton } from '@gitlab/ui';
 import notesModule from '~/notes/stores/modules';
 import DiscussionCounter from '~/notes/components/discussion_counter.vue';
 import { noteableDataMock, discussionMock, notesDataMock, userDataMock } from '../mock_data';
@@ -9,6 +9,7 @@ import * as types from '~/notes/stores/mutation_types';
 describe('DiscussionCounter component', () => {
   let store;
   let wrapper;
+  let setExpandDiscussionsFn;
   const localVue = createLocalVue();
 
   localVue.use(Vuex);
@@ -16,6 +17,7 @@ describe('DiscussionCounter component', () => {
   beforeEach(() => {
     window.mrTabs = {};
     const { state, getters, mutations, actions } = notesModule();
+    setExpandDiscussionsFn = jest.fn().mockImplementation(actions.setExpandDiscussions);
 
     store = new Vuex.Store({
       state: {
@@ -24,7 +26,10 @@ describe('DiscussionCounter component', () => {
       },
       getters,
       mutations,
-      actions,
+      actions: {
+        ...actions,
+        setExpandDiscussions: setExpandDiscussionsFn,
+      },
     });
     store.dispatch('setNoteableData', {
       ...noteableDataMock,
@@ -84,7 +89,7 @@ describe('DiscussionCounter component', () => {
       wrapper = shallowMount(DiscussionCounter, { store, localVue });
 
       expect(wrapper.find(`.is-active`).exists()).toBe(isActive);
-      expect(wrapper.findAll('[role="group"').length).toBe(groupLength);
+      expect(wrapper.findAll(GlButton)).toHaveLength(groupLength);
     });
   });
 
@@ -103,23 +108,22 @@ describe('DiscussionCounter component', () => {
     it('calls button handler when clicked', () => {
       updateStoreWithExpanded(true);
 
-      wrapper.setMethods({ handleExpandDiscussions: jest.fn() });
-      toggleAllButton.trigger('click');
+      toggleAllButton.vm.$emit('click');
 
-      expect(wrapper.vm.handleExpandDiscussions).toHaveBeenCalledTimes(1);
+      expect(setExpandDiscussionsFn).toHaveBeenCalledTimes(1);
     });
 
     it('collapses all discussions if expanded', () => {
       updateStoreWithExpanded(true);
 
       expect(wrapper.vm.allExpanded).toBe(true);
-      expect(toggleAllButton.find(GlIcon).props().name).toBe('angle-up');
+      expect(toggleAllButton.props('icon')).toBe('angle-up');
 
-      toggleAllButton.trigger('click');
+      toggleAllButton.vm.$emit('click');
 
       return wrapper.vm.$nextTick().then(() => {
         expect(wrapper.vm.allExpanded).toBe(false);
-        expect(toggleAllButton.find(GlIcon).props().name).toBe('angle-down');
+        expect(toggleAllButton.props('icon')).toBe('angle-down');
       });
     });
 
@@ -127,13 +131,13 @@ describe('DiscussionCounter component', () => {
       updateStoreWithExpanded(false);
 
       expect(wrapper.vm.allExpanded).toBe(false);
-      expect(toggleAllButton.find(GlIcon).props().name).toBe('angle-down');
+      expect(toggleAllButton.props('icon')).toBe('angle-down');
 
-      toggleAllButton.trigger('click');
+      toggleAllButton.vm.$emit('click');
 
       return wrapper.vm.$nextTick().then(() => {
         expect(wrapper.vm.allExpanded).toBe(true);
-        expect(toggleAllButton.find(GlIcon).props().name).toBe('angle-up');
+        expect(toggleAllButton.props('icon')).toBe('angle-up');
       });
     });
   });