Add headers to files in the tree list on merge requests

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/54807

1 files changed, 25 insertions, 0 deletions

diff --git a/app/assets/javascripts/vue_shared/components/file_row_header.vue b/app/assets/javascripts/vue_shared/components/file_row_header.vue
new file mode 100644
index 00000000000..301fd8116a9
--- /dev/null
+++ b/app/assets/javascripts/vue_shared/components/file_row_header.vue
@@ -0,0 +1,25 @@
+<script>
+import { truncatePathMiddleToLength } from '~/lib/utils/text_utility';
+
+const MAX_PATH_LENGTH = 40;
+
+export default {
+  props: {
+    path: {
+      type: String,
+      required: true,
+    },
+  },
+  computed: {
+    truncatedPath() {
+      return truncatePathMiddleToLength(this.path, MAX_PATH_LENGTH);
+    },
+  },
+};
+</script>
+
+<template>
+  <div class="file-row-header bg-white sticky-top p-2 js-file-row-header">
+    <span class="bold">{{ truncatedPath }}</span>
+  </div>
+</template>