UX fixes for projects dropdown filter

ee/app/assets/javascripts/analytics/shared/components/projects_dropdown_filter.vue

 <script>
-import { sprintf, n__, __ } from '~/locale';
+import { sprintf, n__, s__, __ } from '~/locale';
 import $ from 'jquery';
 import _ from 'underscore';
 import Icon from '~/vue_shared/components/icon.vue';
-import { GlLoadingIcon, GlButton } from '@gitlab/ui';
+import { GlLoadingIcon, GlButton, GlAvatar } from '@gitlab/ui';
 import Api from '~/api';
+import { renderAvatar, renderIdenticon } from '~/helpers/avatar_helper';
 
 export default {
   name: 'ProjectsDropdownFilter',
@@ -12,6 +13,7 @@ export default {
     Icon,
     GlLoadingIcon,
     GlButton,
+    GlAvatar,
   },
   props: {
     groupId: {
@@ -23,6 +25,11 @@ export default {
       required: false,
       default: false,
     },
+    label: {
+      type: String,
+      required: false,
+      default: s__('CycleAnalytics|project dropdown filter'),
+    },
   },
   data() {
     return {
@@ -46,6 +53,9 @@ export default {
     selectedProjectsPlaceholder() {
       return this.multiSelect ? __('Select projects') : __('Select a project');
     },
+    isOnlyOneProjectSelected() {
+      return this.selectedProjects.length === 1;
+    },
   },
   mounted() {
     $(this.$refs.projectsDropdown).glDropdown({
@@ -61,6 +71,7 @@ export default {
       data: this.fetchData.bind(this),
       renderRow: group => this.rowTemplate(group),
       text: project => project.name,
+      opened: e => e.target.querySelector('.dropdown-input-field').focus(),
     });
   },
   methods: {
@@ -90,11 +101,20 @@ export default {
       return `
           <li>
             <a href='#' class='dropdown-menu-link'>
-              ${_.escape(project.name)}
+              ${this.avatarTemplate(project)}
+              <div class="align-middle">${_.escape(project.name)}</div>
             </a>
           </li>
         `;
     },
+    avatarTemplate(project) {
+      const identiconSizeClass = 's16 rect-avatar d-flex justify-content-center flex-column';
+      return project.avatar_url
+        ? renderAvatar(project, { sizeClass: 's16 rect-avatar' })
+        : renderIdenticon(project, {
+            sizeClass: identiconSizeClass,
+          });
+    },
   },
 };
 </script>
@@ -107,7 +127,18 @@ export default {
         type="button"
         data-toggle="dropdown"
         aria-expanded="false"
+        :aria-label="label"
       >
+        <gl-avatar
+          v-if="isOnlyOneProjectSelected"
+          :src="selectedProjects[0].avatar_url"
+          :entity-id="selectedProjects[0].id"
+          :entity-name="selectedProjects[0].name"
+          :size="16"
+          shape="rect"
+          :alt="selectedProjects[0].name"
+          class="prepend-top-2"
+        />
         {{ selectedProjectsLabel }}
         <icon name="chevron-down" />
       </gl-button>

ee/spec/frontend/analytics/shared/components/projects_dropdown_filter_spec.js

-import { shallowMount } from '@vue/test-utils';
+import { mount } from '@vue/test-utils';
 import $ from 'jquery';
 import 'bootstrap';
 import '~/gl_dropdown';
 import ProjectsDropdownFilter from 'ee/analytics/shared/components/projects_dropdown_filter.vue';
 import Api from '~/api';
+import { TEST_HOST } from 'helpers/test_constants';
 
 jest.mock('~/api', () => ({
   groupProjects: jest.fn(),
@@ -13,14 +14,17 @@ const projects = [
   {
     id: 1,
     name: 'foo',
+    avatar_url: `${TEST_HOST}/images/home/nasa.svg`,
   },
   {
     id: 2,
     name: 'foobar',
+    avatar_url: null,
   },
   {
     id: 3,
     name: 'foooooooo',
+    avatar_url: null,
   },
 ];
 
@@ -28,7 +32,7 @@ describe('ProjectsDropdownFilter component', () => {
   let wrapper;
 
   const createComponent = (props = {}) => {
-    wrapper = shallowMount(ProjectsDropdownFilter, {
+    wrapper = mount(ProjectsDropdownFilter, {
       sync: false,
       propsData: {
         groupId: 1,
@@ -55,16 +59,55 @@ describe('ProjectsDropdownFilter component', () => {
       .trigger('shown.bs.dropdown');
   };
   const findDropdownItems = () => findDropdown().findAll('a');
+  const findDropdownButton = () => findDropdown().find('button');
 
   describe('when multiSelect is false', () => {
     beforeEach(() => {
       createComponent({ multiSelect: false });
     });
 
-    it('should call glDropdown', () => {
+    it('calls glDropdown', () => {
       expect($.fn.glDropdown).toHaveBeenCalled();
     });
 
+    describe('displays the correct information', () => {
+      beforeEach(() => {
+        openDropdown();
+
+        return wrapper.vm.$nextTick();
+      });
+
+      it('contains 3 items', () => {
+        expect(findDropdownItems().length).toEqual(3);
+      });
+
+      it('renders an avatar when the project has an avatar_url', () => {
+        expect(
+          findDropdownItems()
+            .at(0)
+            .contains('img.avatar'),
+        ).toBe(true);
+        expect(
+          findDropdownItems()
+            .at(0)
+            .contains('div.identicon'),
+        ).toBe(false);
+      });
+
+      it("renders an identicon when the project doesn't have an avatar_url", () => {
+        expect(
+          findDropdownItems()
+            .at(1)
+            .contains('img.avatar'),
+        ).toBe(false);
+        expect(
+          findDropdownItems()
+            .at(1)
+            .contains('div.identicon'),
+        ).toBe(true);
+      });
+    });
+
     describe('on project click', () => {
       beforeEach(() => {
         openDropdown();
@@ -97,6 +140,30 @@ describe('ProjectsDropdownFilter component', () => {
           },
         ]);
       });
+
+      it('renders an avatar in the dropdown button when the project has an avatar_url', done => {
+        findDropdownItems()
+          .at(0)
+          .trigger('click');
+
+        wrapper.vm.$nextTick(() => {
+          expect(findDropdownButton().contains('img.avatar')).toBe(true);
+          expect(findDropdownButton().contains('div.identicon')).toBe(false);
+          done();
+        });
+      });
+
+      it("renders an identicon in the dropdown button when the project doesn't have an avatar_url", done => {
+        findDropdownItems()
+          .at(1)
+          .trigger('click');
+
+        wrapper.vm.$nextTick(() => {
+          expect(findDropdownButton().contains('img.avatar')).toBe(false);
+          expect(findDropdownButton().contains('div.identicon')).toBe(true);
+          done();
+        });
+      });
     });
   });
 
@@ -105,6 +172,44 @@ describe('ProjectsDropdownFilter component', () => {
       createComponent({ multiSelect: true });
     });
 
+    describe('displays the correct information', () => {
+      beforeEach(() => {
+        openDropdown();
+
+        return wrapper.vm.$nextTick();
+      });
+
+      it('contains 3 items', () => {
+        expect(findDropdownItems().length).toEqual(3);
+      });
+
+      it('renders an avatar when the project has an avatar_url', () => {
+        expect(
+          findDropdownItems()
+            .at(0)
+            .contains('img.avatar'),
+        ).toBe(true);
+        expect(
+          findDropdownItems()
+            .at(0)
+            .contains('div.identicon'),
+        ).toBe(false);
+      });
+
+      it("renders an identicon when the project doesn't have an avatar_url", () => {
+        expect(
+          findDropdownItems()
+            .at(1)
+            .contains('img.avatar'),
+        ).toBe(false);
+        expect(
+          findDropdownItems()
+            .at(1)
+            .contains('div.identicon'),
+        ).toBe(true);
+      });
+    });
+
     describe('on project click', () => {
       beforeEach(() => {
         openDropdown();
@@ -150,6 +255,21 @@ describe('ProjectsDropdownFilter component', () => {
           },
         ]);
       });
+
+      it('renders the correct placeholder text when multiple projects are selected', done => {
+        findDropdownItems()
+          .at(0)
+          .trigger('click');
+
+        findDropdownItems()
+          .at(1)
+          .trigger('click');
+
+        wrapper.vm.$nextTick(() => {
+          expect(findDropdownButton().text()).toBe('2 projects selected');
+          done();
+        });
+      });
     });
   });
 });

locale/gitlab.pot

@@ -4368,6 +4368,9 @@ msgstr[1] ""
 msgid "CycleAnalytics|group dropdown filter"
 msgstr ""
 
+msgid "CycleAnalytics|project dropdown filter"
+msgstr ""
+
 msgid "DNS"
 msgstr ""