1 files changed, 106 insertions, 1 deletions
diff --git a/app/assets/javascripts/vue_shared/components/diff_viewer/viewers/renamed.vue b/app/assets/javascripts/vue_shared/components/diff_viewer/viewers/renamed.vue
index 5c1ea59b471..eba6dd4d14c 100644
--- a/app/assets/javascripts/vue_shared/components/diff_viewer/viewers/renamed.vue
+++ b/app/assets/javascripts/vue_shared/components/diff_viewer/viewers/renamed.vue
@@ -1,3 +1,108 @@
+<script>
+import { mapActions } from 'vuex';
+import { GlAlert, GlLink, GlLoadingIcon, GlSprintf } from '@gitlab/ui';
+
+import { __ } from '~/locale';
+import {
+  TRANSITION_LOAD_START,
+  TRANSITION_LOAD_ERROR,
+  TRANSITION_LOAD_SUCCEED,
+  TRANSITION_ACKNOWLEDGE_ERROR,
+  STATE_IDLING,
+  STATE_LOADING,
+  STATE_ERRORED,
+  RENAMED_DIFF_TRANSITIONS,
+} from '~/diffs/constants';
+import { truncateSha } from '~/lib/utils/text_utility';
+
+export default {
+  STATE_LOADING,
+  STATE_ERRORED,
+  TRANSITIONS: RENAMED_DIFF_TRANSITIONS,
+  uiText: {
+    showLink: __('Show file contents'),
+    commitLink: __('View file @ %{commitSha}'),
+    description: __('File renamed with no changes.'),
+    loadError: __('Unable to load file contents. Try again later.'),
+  },
+  components: {
+    GlAlert,
+    GlLink,
+    GlLoadingIcon,
+    GlSprintf,
+  },
+  props: {
+    diffFile: {
+      type: Object,
+      required: true,
+    },
+  },
+  data: () => ({
+    state: STATE_IDLING,
+  }),
+  computed: {
+    shortSha() {
+      return truncateSha(this.diffFile.content_sha);
+    },
+    canLoadFullDiff() {
+      return this.diffFile.alternate_viewer.name === 'text';
+    },
+  },
+  methods: {
+    ...mapActions('diffs', ['switchToFullDiffFromRenamedFile']),
+    transition(transitionEvent) {
+      const key = `${this.state}:${transitionEvent}`;
+
+      if (this.$options.TRANSITIONS[key]) {
+        this.state = this.$options.TRANSITIONS[key];
+      }
+    },
+    is(state) {
+      return this.state === state;
+    },
+    switchToFull() {
+      this.transition(TRANSITION_LOAD_START);
+
+      this.switchToFullDiffFromRenamedFile({ diffFile: this.diffFile })
+        .then(() => {
+          this.transition(TRANSITION_LOAD_SUCCEED);
+        })
+        .catch(() => {
+          this.transition(TRANSITION_LOAD_ERROR);
+        });
+    },
+    clickLink(event) {
+      if (this.canLoadFullDiff) {
+        event.preventDefault();
+
+        this.switchToFull();
+      }
+    },
+    dismissError() {
+      this.transition(TRANSITION_ACKNOWLEDGE_ERROR);
+    },
+  },
+};
+</script>
+
 <template>
-  <div class="nothing-here-block">{{ __('File moved') }}</div>
+  <div class="nothing-here-block">
+    <gl-loading-icon v-if="is($options.STATE_LOADING)" />
+    <template v-else>
+      <gl-alert
+        v-show="is($options.STATE_ERRORED)"
+        class="gl-mb-5 gl-text-left"
+        variant="danger"
+        @dismiss="dismissError"
+        >{{ $options.uiText.loadError }}</gl-alert
+      >
+      <span test-id="plaintext">{{ $options.uiText.description }}</span>
+      <gl-link :href="diffFile.view_path" @click="clickLink">
+        <span v-if="canLoadFullDiff">{{ $options.uiText.showLink }}</span>
+        <gl-sprintf v-else :message="$options.uiText.commitLink">
+          <template #commitSha>{{ shortSha }}</template>
+        </gl-sprintf>
+      </gl-link>
+    </template>
+  </div>
 </template>