Extract ide_sidebar_nav out of collapsible_sidebar

- This component is responsible for displaying nav
  buttons
- Also creates constants for "side" values

app/assets/javascripts/ide/components/ide_sidebar_nav.vue

+<script>
+import { GlTooltipDirective, GlIcon } from '@gitlab/ui';
+import { otherSide } from '../utils';
+import { SIDE_RIGHT } from '../constants';
+
+export default {
+  directives: {
+    tooltip: GlTooltipDirective,
+  },
+  components: {
+    GlIcon,
+  },
+  props: {
+    tabs: {
+      type: Array,
+      required: true,
+    },
+    side: {
+      type: String,
+      required: true,
+    },
+    currentView: {
+      type: String,
+      required: false,
+      default: '',
+    },
+    isOpen: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
+  },
+  computed: {
+    otherSide() {
+      return otherSide(this.side);
+    },
+  },
+  methods: {
+    isActiveTab(tab) {
+      return this.isOpen && tab.views.some(view => view.name === this.currentView);
+    },
+    buttonClasses(tab) {
+      return [
+        {
+          'is-right': this.side === SIDE_RIGHT,
+          active: this.isActiveTab(tab),
+        },
+        ...(tab.buttonClasses || []),
+      ];
+    },
+    clickTab(e, tab) {
+      e.currentTarget.blur();
+      this.$root.$emit('bv::hide::tooltip');
+
+      if (this.isActiveTab(tab)) {
+        this.$emit('close');
+      } else {
+        this.$emit('open', tab.views[0]);
+      }
+    },
+  },
+};
+</script>
+<template>
+  <nav class="ide-activity-bar">
+    <ul class="list-unstyled">
+      <li v-for="tab of tabs" :key="tab.title">
+        <button
+          v-tooltip="{ container: 'body', placement: otherSide }"
+          :title="tab.title"
+          :aria-label="tab.title"
+          :class="buttonClasses(tab)"
+          :data-qa-selector="`${tab.title.toLowerCase()}_tab_button`"
+          class="ide-sidebar-link"
+          type="button"
+          @click="clickTab($event, tab)"
+        >
+          <gl-icon :size="16" :name="tab.icon" />
+        </button>
+      </li>
+    </ul>
+  </nav>
+</template>

app/assets/javascripts/ide/components/panes/collapsible_sidebar.vue

@@ -3,7 +3,7 @@ import { mapActions, mapState } from 'vuex';
 import tooltip from '~/vue_shared/directives/tooltip';
 import Icon from '~/vue_shared/components/icon.vue';
 import ResizablePanel from '../resizable_panel.vue';
-import { GlSkeletonLoading } from '@gitlab/ui';
+import IdeSidebarNav from '../ide_sidebar_nav.vue';
 
 export default {
   name: 'CollapsibleSidebar',
@@ -13,7 +13,7 @@ export default {
   components: {
     Icon,
     ResizablePanel,
-    GlSkeletonLoading,
+    IdeSidebarNav,
   },
   props: {
     extensionTabs: {
@@ -31,7 +31,6 @@ export default {
     },
   },
   computed: {
-    ...mapState(['loading']),
     ...mapState({
       isOpen(state) {
         return state[this.namespace].isOpen;
@@ -39,9 +38,6 @@ export default {
       currentView(state) {
         return state[this.namespace].currentView;
       },
-      isActiveView(state, getters) {
-        return getters[`${this.namespace}/isActiveView`];
-      },
       isAliveView(_state, getters) {
         return getters[`${this.namespace}/isAliveView`];
       },
@@ -59,9 +55,6 @@ export default {
     aliveTabViews() {
       return this.tabViews.filter(view => this.isAliveView(view.name));
     },
-    otherSide() {
-      return this.side === 'right' ? 'left' : 'right';
-    },
   },
   methods: {
     ...mapActions({
@@ -72,25 +65,6 @@ export default {
         return dispatch(`${this.namespace}/open`, view);
       },
     }),
-    clickTab(e, tab) {
-      e.target.blur();
-
-      if (this.isActiveTab(tab)) {
-        this.toggleOpen();
-      } else {
-        this.open(tab.views[0]);
-      }
-    },
-    isActiveTab(tab) {
-      return tab.views.some(view => this.isActiveView(view.name));
-    },
-    buttonClasses(tab) {
-      return [
-        this.side === 'right' ? 'is-right' : '',
-        this.isActiveTab(tab) && this.isOpen ? 'active' : '',
-        ...(tab.buttonClasses || []),
-      ];
-    },
   },
 };
 </script>
@@ -110,40 +84,23 @@ export default {
       class="multi-file-commit-panel-inner"
     >
       <div class="h-100 d-flex flex-column align-items-stretch">
-        <slot v-if="isOpen" name="header"></slot>
         <div
           v-for="tabView in aliveTabViews"
-          v-show="isActiveView(tabView.name)"
+          v-show="tabView.name === currentView"
           :key="tabView.name"
           class="flex-fill gl-overflow-hidden js-tab-view"
         >
           <component :is="tabView.component" />
         </div>
-        <slot name="footer"></slot>
       </div>
     </resizable-panel>
-    <nav class="ide-activity-bar">
-      <ul class="list-unstyled">
-        <li>
-          <slot name="header-icon"></slot>
-        </li>
-        <li v-for="tab of tabs" :key="tab.title">
-          <button
-            v-tooltip
-            :title="tab.title"
-            :aria-label="tab.title"
-            :class="buttonClasses(tab)"
-            data-container="body"
-            :data-placement="otherSide"
-            :data-qa-selector="`${tab.title.toLowerCase()}_tab_button`"
-            class="ide-sidebar-link"
-            type="button"
-            @click="clickTab($event, tab)"
-          >
-            <icon :size="16" :name="tab.icon" />
-          </button>
-        </li>
-      </ul>
-    </nav>
+    <ide-sidebar-nav
+      :tabs="tabs"
+      :side="side"
+      :current-view="currentView"
+      :is-open="isOpen"
+      @open="open"
+      @close="toggleOpen"
+    />
   </div>
 </template>

app/assets/javascripts/ide/constants.js

@@ -92,3 +92,6 @@ export const commitActionTypes = {
 };
 
 export const packageJsonPath = 'package.json';
+
+export const SIDE_LEFT = 'left';
+export const SIDE_RIGHT = 'right';

app/assets/javascripts/ide/utils.js

+import { SIDE_LEFT, SIDE_RIGHT } from './constants';
 import { languages } from 'monaco-editor';
 import { flatten } from 'lodash';
 
@@ -73,3 +74,5 @@ export function registerLanguages(def, ...defs) {
   languages.setMonarchTokensProvider(languageId, def.language);
   languages.setLanguageConfiguration(languageId, def.conf);
 }
+
+export const otherSide = side => (side === SIDE_RIGHT ? SIDE_LEFT : SIDE_RIGHT);

spec/frontend/ide/components/ide_sidebar_nav_spec.js

+import { shallowMount } from '@vue/test-utils';
+import { GlIcon } from '@gitlab/ui';
+import { createMockDirective, getBinding } from 'helpers/vue_mock_directive';
+import IdeSidebarNav from '~/ide/components/ide_sidebar_nav.vue';
+import { SIDE_RIGHT, SIDE_LEFT } from '~/ide/constants';
+
+const TEST_TABS = [
+  {
+    title: 'Lorem',
+    icon: 'angle-up',
+    views: [{ name: 'lorem-1' }, { name: 'lorem-2' }],
+  },
+  {
+    title: 'Ipsum',
+    icon: 'angle-down',
+    views: [{ name: 'ipsum-1' }, { name: 'ipsum-2' }],
+  },
+];
+const TEST_CURRENT_INDEX = 1;
+const TEST_CURRENT_VIEW = TEST_TABS[TEST_CURRENT_INDEX].views[1].name;
+const TEST_OPEN_VIEW = TEST_TABS[TEST_CURRENT_INDEX].views[0];
+
+describe('~/ide/components/ide_sidebar_nav', () => {
+  let wrapper;
+
+  const createComponent = (props = {}) => {
+    if (wrapper) {
+      throw new Error('wrapper already exists');
+    }
+
+    wrapper = shallowMount(IdeSidebarNav, {
+      propsData: {
+        tabs: TEST_TABS,
+        currentView: TEST_CURRENT_VIEW,
+        isOpen: false,
+        ...props,
+      },
+      directives: {
+        tooltip: createMockDirective(),
+      },
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+    wrapper = null;
+  });
+
+  const findButtons = () => wrapper.findAll('li button');
+  const findButtonsData = () =>
+    findButtons().wrappers.map(button => {
+      return {
+        title: button.attributes('title'),
+        ariaLabel: button.attributes('aria-label'),
+        classes: button.classes(),
+        qaSelector: button.attributes('data-qa-selector'),
+        icon: button.find(GlIcon).props('name'),
+        tooltip: getBinding(button.element, 'tooltip').value,
+      };
+    });
+  const clickTab = () =>
+    findButtons()
+      .at(TEST_CURRENT_INDEX)
+      .trigger('click');
+
+  describe.each`
+    isOpen   | side          | otherSide     | classes         | classesObj                              | emitEvent  | emitArg
+    ${false} | ${SIDE_LEFT}  | ${SIDE_RIGHT} | ${[]}           | ${{}}                                   | ${'open'}  | ${[TEST_OPEN_VIEW]}
+    ${false} | ${SIDE_RIGHT} | ${SIDE_LEFT}  | ${['is-right']} | ${{}}                                   | ${'open'}  | ${[TEST_OPEN_VIEW]}
+    ${true}  | ${SIDE_RIGHT} | ${SIDE_LEFT}  | ${['is-right']} | ${{ [TEST_CURRENT_INDEX]: ['active'] }} | ${'close'} | ${[]}
+  `(
+    'with side = $side, isOpen = $isOpen',
+    ({ isOpen, side, otherSide, classes, classesObj, emitEvent, emitArg }) => {
+      let bsTooltipHide;
+
+      beforeEach(() => {
+        createComponent({ isOpen, side });
+
+        bsTooltipHide = jest.fn();
+        wrapper.vm.$root.$on('bv::hide::tooltip', bsTooltipHide);
+      });
+
+      it('renders buttons', () => {
+        expect(findButtonsData()).toEqual(
+          TEST_TABS.map((tab, index) => ({
+            title: tab.title,
+            ariaLabel: tab.title,
+            classes: ['ide-sidebar-link', ...classes, ...(classesObj[index] || [])],
+            qaSelector: `${tab.title.toLowerCase()}_tab_button`,
+            icon: tab.icon,
+            tooltip: {
+              container: 'body',
+              placement: otherSide,
+            },
+          })),
+        );
+      });
+
+      it('when tab clicked, emits event', () => {
+        expect(wrapper.emitted()).toEqual({});
+
+        clickTab();
+
+        expect(wrapper.emitted()).toEqual({
+          [emitEvent]: [emitArg],
+        });
+      });
+
+      it('when tab clicked, hides tooltip', () => {
+        expect(bsTooltipHide).not.toHaveBeenCalled();
+
+        clickTab();
+
+        expect(bsTooltipHide).toHaveBeenCalled();
+      });
+    },
+  );
+});

spec/frontend/ide/components/panes/collapsible_sidebar_spec.js

@@ -2,6 +2,7 @@ import { createLocalVue, shallowMount } from '@vue/test-utils';
 import { createStore } from '~/ide/stores';
 import paneModule from '~/ide/stores/modules/pane';
 import CollapsibleSidebar from '~/ide/components/panes/collapsible_sidebar.vue';
+import IdeSidebarNav from '~/ide/components/ide_sidebar_nav.vue';
 import Vuex from 'vuex';
 
 const localVue = createLocalVue();
@@ -24,19 +25,15 @@ describe('ide/components/panes/collapsible_sidebar.vue', () => {
         width,
         ...props,
       },
-      slots: {
-        'header-icon': '<div class=".header-icon-slot">SLOT ICON</div>',
-        header: '<div class=".header-slot"/>',
-        footer: '<div class=".footer-slot"/>',
-      },
     });
   };
 
-  const findTabButton = () => wrapper.find(`[data-qa-selector="${fakeComponentName}_tab_button"]`);
+  const findSidebarNav = () => wrapper.find(IdeSidebarNav);
 
   beforeEach(() => {
     store = createStore();
     store.registerModule('leftPane', paneModule());
+    jest.spyOn(store, 'dispatch').mockImplementation();
   });
 
   afterEach(() => {
@@ -75,92 +72,60 @@ describe('ide/components/panes/collapsible_sidebar.vue', () => {
       ${'left'}
       ${'right'}
     `('when side=$side', ({ side }) => {
-      it('correctly renders side specific attributes', () => {
+      beforeEach(() => {
         createComponent({ extensionTabs, side });
-        const button = findTabButton();
-
-        return wrapper.vm.$nextTick().then(() => {
-          expect(wrapper.classes()).toContain('multi-file-commit-panel');
-          expect(wrapper.classes()).toContain(`ide-${side}-sidebar`);
-          expect(wrapper.find('.multi-file-commit-panel-inner')).not.toBe(null);
-          expect(wrapper.find(`.ide-${side}-sidebar-${fakeComponentName}`)).not.toBe(null);
-          expect(button.attributes('data-placement')).toEqual(side === 'left' ? 'right' : 'left');
-          if (side === 'right') {
-            // this class is only needed on the right side; there is no 'is-left'
-            expect(button.classes()).toContain('is-right');
-          } else {
-            expect(button.classes()).not.toContain('is-right');
-          }
-        });
       });
-    });
-
-    describe('when default side', () => {
-      let button;
 
-      beforeEach(() => {
-        createComponent({ extensionTabs });
-
-        button = findTabButton();
+      it('correctly renders side specific attributes', () => {
+        expect(wrapper.classes()).toContain('multi-file-commit-panel');
+        expect(wrapper.classes()).toContain(`ide-${side}-sidebar`);
+        expect(wrapper.find('.multi-file-commit-panel-inner')).not.toBe(null);
+        expect(wrapper.find(`.ide-${side}-sidebar-${fakeComponentName}`)).not.toBe(null);
+        expect(findSidebarNav().props('side')).toBe(side);
       });
 
-      it('correctly renders tab-specific classes', () => {
-        store.state.rightPane.currentView = fakeComponentName;
-
-        return wrapper.vm.$nextTick().then(() => {
-          expect(button.classes()).toContain('button-class-1');
-          expect(button.classes()).toContain('button-class-2');
-        });
+      it('nothing is dispatched', () => {
+        expect(store.dispatch).not.toHaveBeenCalled();
       });
 
-      it('can show an open pane tab with an active view', () => {
-        store.state.rightPane.isOpen = true;
-        store.state.rightPane.currentView = fakeComponentName;
+      it('when sidebar emits open, dispatch open', () => {
+        const view = 'lorem-view';
 
-        return wrapper.vm.$nextTick().then(() => {
-          expect(button.classes()).toEqual(expect.arrayContaining(['ide-sidebar-link', 'active']));
-          expect(button.attributes('data-original-title')).toEqual(fakeComponentName);
-          expect(wrapper.find('.js-tab-view').exists()).toBe(true);
-        });
-      });
-
-      it('does not show a pane which is not open', () => {
-        store.state.rightPane.isOpen = false;
-        store.state.rightPane.currentView = fakeComponentName;
+        findSidebarNav().vm.$emit('open', view);
 
-        return wrapper.vm.$nextTick().then(() => {
-          expect(button.classes()).not.toEqual(
-            expect.arrayContaining(['ide-sidebar-link', 'active']),
-          );
-          expect(wrapper.find('.js-tab-view').exists()).toBe(false);
-        });
+        expect(store.dispatch).toHaveBeenCalledWith(`${side}Pane/open`, view);
       });
 
-      describe('when button is clicked', () => {
-        it('opens view', () => {
-          button.trigger('click');
-          expect(store.state.rightPane.isOpen).toBeTruthy();
-        });
-
-        it('toggles open view if tab is currently active', () => {
-          button.trigger('click');
-          expect(store.state.rightPane.isOpen).toBeTruthy();
+      it('when sidebar emits close, dispatch toggleOpen', () => {
+        findSidebarNav().vm.$emit('close');
 
-          button.trigger('click');
-          expect(store.state.rightPane.isOpen).toBeFalsy();
-        });
+        expect(store.dispatch).toHaveBeenCalledWith(`${side}Pane/toggleOpen`);
       });
+    });
 
-      it('shows header-icon', () => {
-        expect(wrapper.find('.header-icon-slot')).not.toBeNull();
+    describe.each`
+      isOpen
+      ${true}
+      ${false}
+    `('when isOpen=$isOpen', ({ isOpen }) => {
+      beforeEach(() => {
+        store.state.rightPane.isOpen = isOpen;
+        store.state.rightPane.currentView = fakeComponentName;
+
+        createComponent({ extensionTabs });
       });
 
-      it('shows header', () => {
-        expect(wrapper.find('.header-slot')).not.toBeNull();
+      it(`tab view is shown=${isOpen}`, () => {
+        expect(wrapper.find('.js-tab-view').exists()).toBe(isOpen);
       });
 
-      it('shows footer', () => {
-        expect(wrapper.find('.footer-slot')).not.toBeNull();
+      it('renders sidebar nav', () => {
+        expect(findSidebarNav().props()).toEqual({
+          tabs: extensionTabs,
+          side: 'right',
+          currentView: fakeComponentName,
+          isOpen,
+        });
       });
     });
   });