From 4a079d17086e83f41c40fd1a4b79ea593043d3fc Mon Sep 17 00:00:00 2001
From: Momin Ahmad <mominr082@gmail.com>
Date: Mon, 14 Nov 2022 20:18:09 +0530
Subject: [PATCH] feat(ui_firestore): Added empty builder in FirestoreListView
 (#9916)

* Added empty builder in FirestoreListView

#8614 fixed

* fixed format
---
 packages/firebase_ui_firestore/lib/src/query_builder.dart | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/packages/firebase_ui_firestore/lib/src/query_builder.dart b/packages/firebase_ui_firestore/lib/src/query_builder.dart
index e4a75a31ea94..59f2019ce447 100644
--- a/packages/firebase_ui_firestore/lib/src/query_builder.dart
+++ b/packages/firebase_ui_firestore/lib/src/query_builder.dart
@@ -362,6 +362,9 @@ typedef FirestoreErrorBuilder = Widget Function(
   StackTrace stackTrace,
 );
 
+/// A type representing the function passed to [FirestoreListView] for its `emptyBuilder`.
+typedef FirestoreEmptyBuilder = Widget Function(BuildContext context);
+
 /// {@template firebase_ui.firestorelistview}
 /// A [ListView.builder] that obtains its items from a Firestore query.
 ///
@@ -422,6 +425,7 @@ class FirestoreListView<Document> extends FirestoreQueryBuilder<Document> {
     int pageSize = 10,
     FirestoreLoadingBuilder? loadingBuilder,
     FirestoreErrorBuilder? errorBuilder,
+    FirestoreEmptyBuilder? emptyBuilder,
     Axis scrollDirection = Axis.vertical,
     bool reverse = false,
     ScrollController? controller,
@@ -459,6 +463,10 @@ class FirestoreListView<Document> extends FirestoreQueryBuilder<Document> {
               );
             }
 
+            if (snapshot.docs.isEmpty && emptyBuilder != null) {
+              return emptyBuilder(context);
+            }
+
             return ListView.builder(
               itemCount: snapshot.docs.length,
               itemBuilder: (context, index) {