1 files changed, 33 insertions, 1 deletions
diff --git a/app/assets/javascripts/vue_shared/components/file_row.vue b/app/assets/javascripts/vue_shared/components/file_row.vue
index 36a345130c0..2d89a156117 100644
--- a/app/assets/javascripts/vue_shared/components/file_row.vue
+++ b/app/assets/javascripts/vue_shared/components/file_row.vue
@@ -34,10 +34,21 @@ export default {
       required: false,
       default: false,
     },
+    displayTextKey: {
+      type: String,
+      required: false,
+      default: 'name',
+    },
+    shouldTruncateStart: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
   },
   data() {
     return {
       mouseOver: false,
+      truncateStart: 0,
     };
   },
   computed: {
@@ -60,6 +71,15 @@ export default {
         'is-open': this.file.opened,
       };
     },
+    outputText() {
+      const text = this.file[this.displayTextKey];
+
+      if (this.truncateStart === 0) {
+        return text;
+      }
+
+      return `...${text.substring(this.truncateStart, text.length)}`;
+    },
   },
   watch: {
     'file.active': function fileActiveWatch(active) {
@@ -72,6 +92,15 @@ export default {
     if (this.hasPathAtCurrentRoute()) {
       this.scrollIntoView(true);
     }
+
+    if (this.shouldTruncateStart) {
+      const { scrollWidth, offsetWidth } = this.$refs.textOutput;
+      const textOverflow = scrollWidth - offsetWidth;
+
+      if (textOverflow > 0) {
+        this.truncateStart = Math.ceil(textOverflow / 5) + 3;
+      }
+    }
   },
   methods: {
     toggleTreeOpen(path) {
@@ -139,6 +168,7 @@ export default {
         class="file-row-name-container"
       >
         <span
+          ref="textOutput"
           :style="levelIndentation"
           class="file-row-name str-truncated"
         >
@@ -156,7 +186,7 @@ export default {
             :size="16"
             class="append-right-5"
           />
-          {{ file.name }}
+          {{ outputText }}
         </span>
         <component
           :is="extraComponent"
@@ -175,6 +205,8 @@ export default {
         :hide-extra-on-tree="hideExtraOnTree"
         :extra-component="extraComponent"
         :show-changed-icon="showChangedIcon"
+        :display-text-key="displayTextKey"
+        :should-truncate-start="shouldTruncateStart"
         @toggleTreeOpen="toggleTreeOpen"
         @clickFile="clickedFile"
       />