Added shared Clone Dropdown button component

Shared component used for cloning functionality on Projects and
Snippets.

Also a new shared 'getBaseProtocol' url utility has been added

app/assets/javascripts/lib/utils/url_utility.js

@@ -318,3 +318,11 @@ export const setUrlParams = (params, url = window.location.href, clearParams = f
 export function urlIsDifferent(url, compare = String(window.location)) {
   return url !== compare;
 }
+
+export function getHTTPProtocol(url) {
+  if (!url) {
+    return window.location.protocol.slice(0, -1);
+  }
+  const protocol = url.split(':');
+  return protocol.length > 1 ? protocol[0] : undefined;
+}

app/assets/javascripts/vue_shared/components/clone_dropdown.vue

+<script>
+import {
+  GlNewDropdown,
+  GlNewDropdownHeader,
+  GlFormInputGroup,
+  GlNewButton,
+  GlIcon,
+  GlTooltipDirective,
+} from '@gitlab/ui';
+import { __, sprintf } from '~/locale';
+import { getHTTPProtocol } from '~/lib/utils/url_utility';
+
+export default {
+  components: {
+    GlNewDropdown,
+    GlNewDropdownHeader,
+    GlFormInputGroup,
+    GlNewButton,
+    GlIcon,
+  },
+  directives: {
+    GlTooltip: GlTooltipDirective,
+  },
+  props: {
+    sshLink: {
+      type: String,
+      required: false,
+      default: '',
+    },
+    httpLink: {
+      type: String,
+      required: false,
+      default: '',
+    },
+  },
+  computed: {
+    httpLabel() {
+      const protocol = this.httpLink ? getHTTPProtocol(this.httpLink)?.toUpperCase() : '';
+      return sprintf(__('Clone with %{protocol}'), { protocol });
+    },
+  },
+  labels: {
+    defaultLabel: __('Clone'),
+    ssh: __('Clone with SSH'),
+  },
+  copyURLTooltip: __('Copy URL'),
+};
+</script>
+<template>
+  <gl-new-dropdown :text="$options.labels.defaultLabel" category="primary" variant="info">
+    <div class="pb-2 mx-1">
+      <template v-if="sshLink">
+        <gl-new-dropdown-header>{{ $options.labels.ssh }}</gl-new-dropdown-header>
+
+        <div class="mx-3">
+          <gl-form-input-group :value="sshLink" readonly select-on-click>
+            <template #append>
+              <gl-new-button
+                v-gl-tooltip.hover
+                :title="$options.copyURLTooltip"
+                :data-clipboard-text="sshLink"
+              >
+                <gl-icon name="copy-to-clipboard" :title="$options.copyURLTooltip" />
+              </gl-new-button>
+            </template>
+          </gl-form-input-group>
+        </div>
+      </template>
+
+      <template v-if="httpLink">
+        <gl-new-dropdown-header>{{ httpLabel }}</gl-new-dropdown-header>
+
+        <div class="mx-3">
+          <gl-form-input-group :value="httpLink" readonly select-on-click>
+            <template #append>
+              <gl-new-button
+                v-gl-tooltip.hover
+                :title="$options.copyURLTooltip"
+                :data-clipboard-text="httpLink"
+              >
+                <gl-icon name="copy-to-clipboard" :title="$options.copyURLTooltip" />
+              </gl-new-button>
+            </template>
+          </gl-form-input-group>
+        </div>
+      </template>
+    </div>
+  </gl-new-dropdown>
+</template>

locale/gitlab.pot

@@ -4025,6 +4025,9 @@ msgstr ""
 msgid "Clone with %{http_label}"
 msgstr ""
 
+msgid "Clone with %{protocol}"
+msgstr ""
+
 msgid "Clone with KRB5"
 msgstr ""
 

spec/frontend/lib/utils/url_utility_spec.js

@@ -485,4 +485,30 @@ describe('URL utility', () => {
       );
     });
   });
+
+  describe('getHTTPProtocol', () => {
+    const httpProtocol = 'http:';
+    const httpsProtocol = 'https:';
+
+    it.each([[httpProtocol], [httpsProtocol]])(
+      'when no url passed, returns correct protocol for %i from window location',
+      protocol => {
+        setWindowLocation({
+          protocol,
+        });
+        expect(urlUtils.getHTTPProtocol()).toBe(protocol.slice(0, -1));
+      },
+    );
+
+    it.each`
+      url                      | expectation
+      ${'not-a-url'}           | ${undefined}
+      ${'wss://example.com'}   | ${'wss'}
+      ${'https://foo.bar'}     | ${'https'}
+      ${'http://foo.bar'}      | ${'http'}
+      ${'http://foo.bar:8080'} | ${'http'}
+    `('returns correct protocol for $url', ({ url, expectation }) => {
+      expect(urlUtils.getHTTPProtocol(url)).toBe(expectation);
+    });
+  });
 });

spec/frontend/vue_shared/components/__snapshots__/clone_dropdown_spec.js.snap

+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Clone Dropdown Button rendering matches the snapshot 1`] = `
+<gl-new-dropdown-stub
+  category="primary"
+  headertext=""
+  size="medium"
+  text="Clone"
+  variant="info"
+>
+  <div
+    class="pb-2 mx-1"
+  >
+    <gl-new-dropdown-header-stub>
+      Clone with SSH
+    </gl-new-dropdown-header-stub>
+     
+    <div
+      class="mx-3"
+    >
+      <div
+        readonly="readonly"
+      >
+        <b-input-group-stub
+          tag="div"
+        >
+          <b-input-group-prepend-stub
+            tag="div"
+          >
+             
+            <!---->
+          </b-input-group-prepend-stub>
+           
+          <b-form-input-stub
+            class="gl-form-input"
+            debounce="0"
+            readonly="true"
+            type="text"
+            value="ssh://foo.bar"
+          />
+           
+          <b-input-group-append-stub
+            tag="div"
+          >
+            <gl-new-button-stub
+              category="tertiary"
+              data-clipboard-text="ssh://foo.bar"
+              icon=""
+              size="medium"
+              title="Copy URL"
+              variant="default"
+            >
+              <gl-icon-stub
+                name="copy-to-clipboard"
+                size="16"
+                title="Copy URL"
+              />
+            </gl-new-button-stub>
+          </b-input-group-append-stub>
+        </b-input-group-stub>
+      </div>
+    </div>
+     
+    <gl-new-dropdown-header-stub>
+      Clone with HTTP
+    </gl-new-dropdown-header-stub>
+     
+    <div
+      class="mx-3"
+    >
+      <div
+        readonly="readonly"
+      >
+        <b-input-group-stub
+          tag="div"
+        >
+          <b-input-group-prepend-stub
+            tag="div"
+          >
+             
+            <!---->
+          </b-input-group-prepend-stub>
+           
+          <b-form-input-stub
+            class="gl-form-input"
+            debounce="0"
+            readonly="true"
+            type="text"
+            value="http://foo.bar"
+          />
+           
+          <b-input-group-append-stub
+            tag="div"
+          >
+            <gl-new-button-stub
+              category="tertiary"
+              data-clipboard-text="http://foo.bar"
+              icon=""
+              size="medium"
+              title="Copy URL"
+              variant="default"
+            >
+              <gl-icon-stub
+                name="copy-to-clipboard"
+                size="16"
+                title="Copy URL"
+              />
+            </gl-new-button-stub>
+          </b-input-group-append-stub>
+        </b-input-group-stub>
+      </div>
+    </div>
+  </div>
+</gl-new-dropdown-stub>
+`;

spec/frontend/vue_shared/components/clone_dropdown_spec.js

+import CloneDropdown from '~/vue_shared/components/clone_dropdown.vue';
+import { shallowMount } from '@vue/test-utils';
+import { GlFormInputGroup, GlNewDropdownHeader } from '@gitlab/ui';
+
+describe('Clone Dropdown Button', () => {
+  let wrapper;
+  const sshLink = 'ssh://foo.bar';
+  const httpLink = 'http://foo.bar';
+  const httpsLink = 'https://foo.bar';
+  const defaultPropsData = {
+    sshLink,
+    httpLink,
+  };
+
+  const createComponent = (propsData = defaultPropsData) => {
+    wrapper = shallowMount(CloneDropdown, {
+      propsData,
+      stubs: {
+        'gl-form-input-group': GlFormInputGroup,
+      },
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+    wrapper = null;
+  });
+
+  describe('rendering', () => {
+    it('matches the snapshot', () => {
+      createComponent();
+      expect(wrapper.element).toMatchSnapshot();
+    });
+
+    it.each`
+      name      | index | value
+      ${'SSH'}  | ${0}  | ${sshLink}
+      ${'HTTP'} | ${1}  | ${httpLink}
+    `('renders correct link and a copy-button for $name', ({ index, value }) => {
+      createComponent();
+      const group = wrapper.findAll(GlFormInputGroup).at(index);
+      expect(group.props('value')).toBe(value);
+      expect(group.contains(GlFormInputGroup)).toBe(true);
+    });
+
+    it.each`
+      name          | value
+      ${'sshLink'}  | ${sshLink}
+      ${'httpLink'} | ${httpLink}
+    `('does not fail if only $name is set', ({ name, value }) => {
+      createComponent({ [name]: value });
+
+      expect(wrapper.find(GlFormInputGroup).props('value')).toBe(value);
+      expect(wrapper.findAll(GlNewDropdownHeader).length).toBe(1);
+    });
+  });
+
+  describe('functionality', () => {
+    it.each`
+      name          | value
+      ${'sshLink'}  | ${null}
+      ${'httpLink'} | ${null}
+    `('allows null values for the props', ({ name, value }) => {
+      createComponent({ ...defaultPropsData, [name]: value });
+
+      expect(wrapper.findAll(GlNewDropdownHeader).length).toBe(1);
+    });
+
+    it('correctly calculates httpLabel for HTTPS protocol', () => {
+      createComponent({ httpLink: httpsLink });
+      expect(wrapper.find(GlNewDropdownHeader).text()).toContain('HTTPS');
+    });
+  });
+});