Add re-usable Issuable Create app

Adds `issuable_create` Vue app in FOSS to use with
Test Cases (and other Issuable types later).

app/assets/javascripts/issuable_create/components/issuable_create_root.vue

+<script>
+import IssuableForm from './issuable_form.vue';
+
+export default {
+  components: {
+    IssuableForm,
+  },
+  props: {
+    descriptionPreviewPath: {
+      type: String,
+      required: true,
+    },
+    descriptionHelpPath: {
+      type: String,
+      required: true,
+    },
+    labelsFetchPath: {
+      type: String,
+      required: true,
+    },
+    labelsManagePath: {
+      type: String,
+      required: true,
+    },
+  },
+};
+</script>
+
+<template>
+  <div class="issuable-create-container">
+    <slot name="title"></slot>
+    <hr />
+    <issuable-form
+      :description-preview-path="descriptionPreviewPath"
+      :description-help-path="descriptionHelpPath"
+      :labels-fetch-path="labelsFetchPath"
+      :labels-manage-path="labelsManagePath"
+    >
+      <template #actions="issuableMeta">
+        <slot name="actions" v-bind="issuableMeta"></slot>
+      </template>
+    </issuable-form>
+  </div>
+</template>

app/assets/javascripts/issuable_create/components/issuable_form.vue

+<script>
+import { GlForm, GlFormInput } from '@gitlab/ui';
+import MarkdownField from '~/vue_shared/components/markdown/field.vue';
+import LabelsSelect from '~/vue_shared/components/sidebar/labels_select_vue/labels_select_root.vue';
+
+import { DropdownVariant } from '~/vue_shared/components/sidebar/labels_select_vue/constants';
+
+export default {
+  LabelSelectVariant: DropdownVariant,
+  components: {
+    GlForm,
+    GlFormInput,
+    MarkdownField,
+    LabelsSelect,
+  },
+  props: {
+    descriptionPreviewPath: {
+      type: String,
+      required: true,
+    },
+    descriptionHelpPath: {
+      type: String,
+      required: true,
+    },
+    labelsFetchPath: {
+      type: String,
+      required: true,
+    },
+    labelsManagePath: {
+      type: String,
+      required: true,
+    },
+  },
+  data() {
+    return {
+      issuableTitle: '',
+      issuableDescription: '',
+      selectedLabels: [],
+    };
+  },
+  methods: {
+    handleUpdateSelectedLabels(labels) {
+      if (labels.length) {
+        this.selectedLabels = labels;
+      }
+    },
+  },
+};
+</script>
+
+<template>
+  <gl-form class="common-note-form gfm-form" @submit.stop.prevent>
+    <div data-testid="issuable-title" class="form-group row">
+      <label for="issuable-title" class="col-form-label col-sm-2">{{ __('Title') }}</label>
+      <div class="col-sm-10">
+        <gl-form-input id="issuable-title" v-model="issuableTitle" :placeholder="__('Title')" />
+      </div>
+    </div>
+    <div data-testid="issuable-description" class="form-group row">
+      <label for="issuable-description" class="col-form-label col-sm-2">{{
+        __('Description')
+      }}</label>
+      <div class="col-sm-10">
+        <markdown-field
+          :markdown-preview-path="descriptionPreviewPath"
+          :markdown-docs-path="descriptionHelpPath"
+          :add-spacing-classes="false"
+          :show-suggest-popover="true"
+        >
+          <textarea
+            id="issuable-description"
+            ref="textarea"
+            slot="textarea"
+            v-model="issuableDescription"
+            dir="auto"
+            class="note-textarea qa-issuable-form-description rspec-issuable-form-description js-gfm-input js-autosize markdown-area"
+            :aria-label="__('Description')"
+            :placeholder="__('Write a comment or drag your files here…')"
+          ></textarea>
+        </markdown-field>
+      </div>
+    </div>
+    <div class="row">
+      <div class="col-lg-6">
+        <div data-testid="issuable-labels" class="form-group row">
+          <label for="issuable-labels" class="col-form-label col-md-2 col-lg-4">{{
+            __('Labels')
+          }}</label>
+          <div class="col-md-8 col-sm-10">
+            <div class="issuable-form-select-holder">
+              <labels-select
+                :allow-label-edit="true"
+                :allow-label-create="true"
+                :allow-multiselect="true"
+                :allow-scoped-labels="true"
+                :labels-fetch-path="labelsFetchPath"
+                :labels-manage-path="labelsManagePath"
+                :selected-labels="selectedLabels"
+                :labels-list-title="__('Select label')"
+                :footer-create-label-title="__('Create project label')"
+                :footer-manage-label-title="__('Manage project labels')"
+                :variant="$options.LabelSelectVariant.Embedded"
+                @updateSelectedLabels="handleUpdateSelectedLabels"
+              />
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+    <div
+      data-testid="issuable-create-actions"
+      class="footer-block row-content-block gl-display-flex"
+    >
+      <slot
+        name="actions"
+        :issuable-title="issuableTitle"
+        :issuable-description="issuableDescription"
+        :selected-labels="selectedLabels"
+      ></slot>
+    </div>
+  </gl-form>
+</template>

app/assets/javascripts/vue_shared/components/sidebar/labels_select_vue/labels_select_root.vue

@@ -166,7 +166,11 @@ export default {
         !state.showDropdownButton &&
         !state.showDropdownContents
       ) {
-        this.handleDropdownClose(state.labels.filter(label => label.touched));
+        let filterFn = label => label.touched;
+        if (this.isDropdownVariantEmbedded) {
+          filterFn = label => label.set;
+        }
+        this.handleDropdownClose(state.labels.filter(filterFn));
       }
     },
     /**
@@ -186,7 +190,7 @@ export default {
       ].some(
         className =>
           target?.classList.contains(className) ||
-          target?.parentElement.classList.contains(className),
+          target?.parentElement?.classList.contains(className),
       );
 
       const hadExceptionParent = ['.js-btn-back', '.js-labels-list'].some(

spec/frontend/issuable_create/components/issuable_create_root_spec.js

+import { mount } from '@vue/test-utils';
+
+import IssuableCreateRoot from '~/issuable_create/components/issuable_create_root.vue';
+import IssuableForm from '~/issuable_create/components/issuable_form.vue';
+
+const createComponent = ({
+  descriptionPreviewPath = '/gitlab-org/gitlab-shell/preview_markdown',
+  descriptionHelpPath = '/help/user/markdown',
+  labelsFetchPath = '/gitlab-org/gitlab-shell/-/labels.json',
+  labelsManagePath = '/gitlab-org/gitlab-shell/-/labels',
+} = {}) => {
+  return mount(IssuableCreateRoot, {
+    propsData: {
+      descriptionPreviewPath,
+      descriptionHelpPath,
+      labelsFetchPath,
+      labelsManagePath,
+    },
+    slots: {
+      title: `
+        <h1 class="js-create-title">New Issuable</h1>
+      `,
+      actions: `
+        <button class="js-issuable-save">Submit issuable</button>
+      `,
+    },
+  });
+};
+
+describe('IssuableCreateRoot', () => {
+  let wrapper;
+
+  beforeEach(() => {
+    wrapper = createComponent();
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  describe('template', () => {
+    it('renders component container element with class "issuable-create-container"', () => {
+      expect(wrapper.classes()).toContain('issuable-create-container');
+    });
+
+    it('renders contents for slot "title"', () => {
+      const titleEl = wrapper.find('h1.js-create-title');
+
+      expect(titleEl.exists()).toBe(true);
+      expect(titleEl.text()).toBe('New Issuable');
+    });
+
+    it('renders issuable-form component', () => {
+      expect(wrapper.find(IssuableForm).exists()).toBe(true);
+    });
+
+    it('renders contents for slot "actions" within issuable-form component', () => {
+      const buttonEl = wrapper.find(IssuableForm).find('button.js-issuable-save');
+
+      expect(buttonEl.exists()).toBe(true);
+      expect(buttonEl.text()).toBe('Submit issuable');
+    });
+  });
+});

spec/frontend/issuable_create/components/issuable_form_spec.js

+import { shallowMount } from '@vue/test-utils';
+import { GlFormInput } from '@gitlab/ui';
+
+import MarkdownField from '~/vue_shared/components/markdown/field.vue';
+import LabelsSelect from '~/vue_shared/components/sidebar/labels_select_vue/labels_select_root.vue';
+
+import IssuableForm from '~/issuable_create/components/issuable_form.vue';
+
+const createComponent = ({
+  descriptionPreviewPath = '/gitlab-org/gitlab-shell/preview_markdown',
+  descriptionHelpPath = '/help/user/markdown',
+  labelsFetchPath = '/gitlab-org/gitlab-shell/-/labels.json',
+  labelsManagePath = '/gitlab-org/gitlab-shell/-/labels',
+} = {}) => {
+  return shallowMount(IssuableForm, {
+    propsData: {
+      descriptionPreviewPath,
+      descriptionHelpPath,
+      labelsFetchPath,
+      labelsManagePath,
+    },
+    slots: {
+      actions: `
+        <button class="js-issuable-save">Submit issuable</button>
+      `,
+    },
+  });
+};
+
+describe('IssuableForm', () => {
+  let wrapper;
+
+  beforeEach(() => {
+    wrapper = createComponent();
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  describe('methods', () => {
+    describe('handleUpdateSelectedLabels', () => {
+      it('sets provided `labels` param to prop `selectedLabels`', () => {
+        const labels = [
+          {
+            id: 1,
+            color: '#BADA55',
+            text_color: '#ffffff',
+            title: 'Documentation',
+          },
+        ];
+
+        wrapper.vm.handleUpdateSelectedLabels(labels);
+
+        expect(wrapper.vm.selectedLabels).toBe(labels);
+      });
+    });
+  });
+
+  describe('template', () => {
+    it('renders issuable title input field', () => {
+      const titleFieldEl = wrapper.find('[data-testid="issuable-title"]');
+
+      expect(titleFieldEl.exists()).toBe(true);
+      expect(titleFieldEl.find('label').text()).toBe('Title');
+      expect(titleFieldEl.find(GlFormInput).exists()).toBe(true);
+      expect(titleFieldEl.find(GlFormInput).attributes('placeholder')).toBe('Title');
+    });
+
+    it('renders issuable description input field', () => {
+      const descriptionFieldEl = wrapper.find('[data-testid="issuable-description"]');
+
+      expect(descriptionFieldEl.exists()).toBe(true);
+      expect(descriptionFieldEl.find('label').text()).toBe('Description');
+      expect(descriptionFieldEl.find(MarkdownField).exists()).toBe(true);
+      expect(descriptionFieldEl.find(MarkdownField).props()).toMatchObject({
+        markdownPreviewPath: wrapper.vm.descriptionPreviewPath,
+        markdownDocsPath: wrapper.vm.descriptionHelpPath,
+        addSpacingClasses: false,
+        showSuggestPopover: true,
+      });
+      expect(descriptionFieldEl.find('textarea').exists()).toBe(true);
+      expect(descriptionFieldEl.find('textarea').attributes('placeholder')).toBe(
+        'Write a comment or drag your files here…',
+      );
+    });
+
+    it('renders labels select field', () => {
+      const labelsSelectEl = wrapper.find('[data-testid="issuable-labels"]');
+
+      expect(labelsSelectEl.exists()).toBe(true);
+      expect(labelsSelectEl.find('label').text()).toBe('Labels');
+      expect(labelsSelectEl.find(LabelsSelect).exists()).toBe(true);
+      expect(labelsSelectEl.find(LabelsSelect).props()).toMatchObject({
+        allowLabelEdit: true,
+        allowLabelCreate: true,
+        allowMultiselect: true,
+        allowScopedLabels: true,
+        labelsFetchPath: wrapper.vm.labelsFetchPath,
+        labelsManagePath: wrapper.vm.labelsManagePath,
+        selectedLabels: wrapper.vm.selectedLabels,
+        labelsListTitle: 'Select label',
+        footerCreateLabelTitle: 'Create project label',
+        footerManageLabelTitle: 'Manage project labels',
+        variant: 'embedded',
+      });
+    });
+
+    it('renders contents for slot "actions"', () => {
+      const buttonEl = wrapper
+        .find('[data-testid="issuable-create-actions"]')
+        .find('button.js-issuable-save');
+
+      expect(buttonEl.exists()).toBe(true);
+      expect(buttonEl.text()).toBe('Submit issuable');
+    });
+  });
+});

spec/frontend/vue_shared/components/sidebar/labels_select_vue/labels_select_root_spec.js

@@ -65,6 +65,33 @@ describe('LabelsSelectRoot', () => {
           ]),
         );
       });
+
+      it('calls `handleDropdownClose` with state.labels filterd using `set` prop when dropdown variant is `embedded`', () => {
+        wrapper = createComponent({
+          ...mockConfig,
+          variant: 'embedded',
+        });
+
+        jest.spyOn(wrapper.vm, 'handleDropdownClose').mockImplementation();
+
+        wrapper.vm.handleVuexActionDispatch(
+          { type: 'toggleDropdownContents' },
+          {
+            showDropdownButton: false,
+            showDropdownContents: false,
+            labels: [{ id: 1 }, { id: 2, set: true }],
+          },
+        );
+
+        expect(wrapper.vm.handleDropdownClose).toHaveBeenCalledWith(
+          expect.arrayContaining([
+            {
+              id: 2,
+              set: true,
+            },
+          ]),
+        );
+      });
     });
 
     describe('handleDropdownClose', () => {