1 files changed, 27 insertions, 0 deletions
diff --git a/app/assets/javascripts/static_site_editor/components/unsaved_changes_confirm_dialog.vue b/app/assets/javascripts/static_site_editor/components/unsaved_changes_confirm_dialog.vue
new file mode 100644
index 00000000000..255f029bd27
--- /dev/null
+++ b/app/assets/javascripts/static_site_editor/components/unsaved_changes_confirm_dialog.vue
@@ -0,0 +1,27 @@
+<script>
+export default {
+  props: {
+    modified: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
+  },
+  created() {
+    window.addEventListener('beforeunload', this.requestConfirmation);
+  },
+  destroyed() {
+    window.removeEventListener('beforeunload', this.requestConfirmation);
+  },
+  methods: {
+    requestConfirmation(e) {
+      if (this.modified) {
+        e.preventDefault();
+        // eslint-disable-next-line no-param-reassign
+        e.returnValue = '';
+      }
+    },
+  },
+  render: () => null,
+};
+</script>