1 files changed, 186 insertions, 0 deletions
diff --git a/app/assets/javascripts/ref/components/ref_selector.vue b/app/assets/javascripts/ref/components/ref_selector.vue
new file mode 100644
index 00000000000..012a391a3da
--- /dev/null
+++ b/app/assets/javascripts/ref/components/ref_selector.vue
@@ -0,0 +1,186 @@
+<script>
+import { mapActions, mapGetters, mapState } from 'vuex';
+import {
+  GlNewDropdown,
+  GlNewDropdownDivider,
+  GlNewDropdownHeader,
+  GlSearchBoxByType,
+  GlSprintf,
+  GlIcon,
+  GlLoadingIcon,
+} from '@gitlab/ui';
+import { debounce } from 'lodash';
+import createStore from '../stores';
+import { SEARCH_DEBOUNCE_MS, DEFAULT_I18N } from '../constants';
+import RefResultsSection from './ref_results_section.vue';
+
+export default {
+  name: 'RefSelector',
+  store: createStore(),
+  components: {
+    GlNewDropdown,
+    GlNewDropdownDivider,
+    GlNewDropdownHeader,
+    GlSearchBoxByType,
+    GlSprintf,
+    GlIcon,
+    GlLoadingIcon,
+    RefResultsSection,
+  },
+  props: {
+    value: {
+      type: String,
+      required: false,
+      default: '',
+    },
+    projectId: {
+      type: String,
+      required: true,
+    },
+    translations: {
+      type: Object,
+      required: false,
+      default: () => ({}),
+    },
+  },
+  data() {
+    return {
+      query: '',
+    };
+  },
+  computed: {
+    ...mapState({
+      matches: state => state.matches,
+      lastQuery: state => state.query,
+      selectedRef: state => state.selectedRef,
+    }),
+    ...mapGetters(['isLoading', 'isQueryPossiblyASha']),
+    i18n() {
+      return {
+        ...DEFAULT_I18N,
+        ...this.translations,
+      };
+    },
+    showBranchesSection() {
+      return Boolean(this.matches.branches.totalCount > 0 || this.matches.branches.error);
+    },
+    showTagsSection() {
+      return Boolean(this.matches.tags.totalCount > 0 || this.matches.tags.error);
+    },
+    showCommitsSection() {
+      return Boolean(this.matches.commits.totalCount > 0 || this.matches.commits.error);
+    },
+    showNoResults() {
+      return !this.showBranchesSection && !this.showTagsSection && !this.showCommitsSection;
+    },
+  },
+  created() {
+    this.setProjectId(this.projectId);
+    this.search(this.query);
+  },
+  methods: {
+    ...mapActions(['setProjectId', 'setSelectedRef', 'search']),
+    focusSearchBox() {
+      this.$refs.searchBox.$el.querySelector('input').focus();
+    },
+    onSearchBoxInput: debounce(function search() {
+      this.search(this.query);
+    }, SEARCH_DEBOUNCE_MS),
+    selectRef(ref) {
+      this.setSelectedRef(ref);
+      this.$emit('input', this.selectedRef);
+    },
+  },
+};
+</script>
+
+<template>
+  <gl-new-dropdown class="ref-selector" @shown="focusSearchBox">
+    <template slot="button-content">
+      <span class="gl-flex-grow-1 gl-ml-2 gl-text-gray-600" data-testid="button-content">
+        <span v-if="selectedRef" class="gl-font-monospace">{{ selectedRef }}</span>
+        <span v-else>{{ i18n.noRefSelected }}</span>
+      </span>
+      <gl-icon name="chevron-down" />
+    </template>
+
+    <div class="gl-display-flex gl-flex-direction-column ref-selector-dropdown-content">
+      <gl-new-dropdown-header>
+        <span class="gl-text-center gl-display-block">{{ i18n.dropdownHeader }}</span>
+      </gl-new-dropdown-header>
+
+      <gl-new-dropdown-divider />
+
+      <gl-search-box-by-type
+        ref="searchBox"
+        v-model.trim="query"
+        class="gl-m-3"
+        :placeholder="i18n.searchPlaceholder"
+        @input="onSearchBoxInput"
+      />
+
+      <div class="gl-flex-grow-1 gl-overflow-y-auto">
+        <gl-loading-icon v-if="isLoading" size="lg" class="gl-my-3" />
+
+        <div
+          v-else-if="showNoResults"
+          class="gl-text-center gl-mx-3 gl-py-3"
+          data-testid="no-results"
+        >
+          <gl-sprintf v-if="lastQuery" :message="i18n.noResultsWithQuery">
+            <template #query>
+              <b class="gl-word-break-all">{{ lastQuery }}</b>
+            </template>
+          </gl-sprintf>
+
+          <span v-else>{{ i18n.noResults }}</span>
+        </div>
+
+        <template v-else>
+          <template v-if="showBranchesSection">
+            <ref-results-section
+              :section-title="i18n.branches"
+              :total-count="matches.branches.totalCount"
+              :items="matches.branches.list"
+              :selected-ref="selectedRef"
+              :error="matches.branches.error"
+              :error-message="i18n.branchesErrorMessage"
+              data-testid="branches-section"
+              @selected="selectRef($event)"
+            />
+
+            <gl-new-dropdown-divider v-if="showTagsSection || showCommitsSection" />
+          </template>
+
+          <template v-if="showTagsSection">
+            <ref-results-section
+              :section-title="i18n.tags"
+              :total-count="matches.tags.totalCount"
+              :items="matches.tags.list"
+              :selected-ref="selectedRef"
+              :error="matches.tags.error"
+              :error-message="i18n.tagsErrorMessage"
+              data-testid="tags-section"
+              @selected="selectRef($event)"
+            />
+
+            <gl-new-dropdown-divider v-if="showCommitsSection" />
+          </template>
+
+          <template v-if="showCommitsSection">
+            <ref-results-section
+              :section-title="i18n.commits"
+              :total-count="matches.commits.totalCount"
+              :items="matches.commits.list"
+              :selected-ref="selectedRef"
+              :error="matches.commits.error"
+              :error-message="i18n.commitsErrorMessage"
+              data-testid="commits-section"
+              @selected="selectRef($event)"
+            />
+          </template>
+        </template>
+      </div>
+    </div>
+  </gl-new-dropdown>
+</template>