From 0f5207781da19366557d1298946416c4eeaaf0ea Mon Sep 17 00:00:00 2001
From: Georgiy Voloshin <georgiy.voloshin@tripster.ru>
Date: Mon, 2 Sep 2024 12:18:57 +0300
Subject: [PATCH 1/3] Add new custom unreadHeaderDate builder

---
 lib/src/widgets/chat.dart | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/src/widgets/chat.dart b/lib/src/widgets/chat.dart
index 6c96a30d..fff2299f 100644
--- a/lib/src/widgets/chat.dart
+++ b/lib/src/widgets/chat.dart
@@ -104,6 +104,7 @@ class Chat extends StatefulWidget {
     this.slidableMessageBuilder,
     this.isLeftStatus = false,
     this.messageWidthRatio = 0.72,
+    this.unreadHeaderDataBuilder,
   });
 
   /// See [Message.audioMessageBuilder].
@@ -143,6 +144,9 @@ class Chat extends StatefulWidget {
   /// Custom date header builder gives ability to customize date header widget.
   final Widget Function(DateHeader)? dateHeaderBuilder;
 
+// Custom unreadHeaderData spacer builder gives ability to customize header for unread messages.
+  final Widget Function(UnreadHeaderData)? unreadHeaderDataBuilder;
+
   /// Time (in ms) between two messages when we will render a date header.
   /// Default value is 15 minutes, 900000 ms. When time between two messages
   /// is higher than this threshold, date header will be rendered. Also,
@@ -457,11 +461,11 @@ class ChatState extends State<Chat> {
         height: object.height,
       );
     } else if (object is UnreadHeaderData) {
-      return AutoScrollTag(
+      return widget.unreadHeaderDataBuilder?.call(object) ?? AutoScrollTag(
         controller: _scrollController,
         index: index ?? -1,
         key: const Key('unread_header'),
-        child: UnreadHeader(
+        child:  UnreadHeader(
           marginTop: object.marginTop,
         ),
       );
@@ -599,7 +603,7 @@ class ChatState extends State<Chat> {
         lastReadMessageId: widget.scrollToUnreadOptions.lastReadMessageId,
         showUserNames: widget.showUserNames,
         timeFormat: widget.timeFormat,
-        messagesSpacerHeight: widget.messagesSpacerHeight,
+        
       );
 
       _chatMessages = result[0] as List<Object>;

From 7bd1c2743e0007d8d6424e50755baaaa08263e43 Mon Sep 17 00:00:00 2001
From: Georgiy Voloshin <georgiy.voloshin@tripster.ru>
Date: Mon, 2 Sep 2024 12:37:07 +0300
Subject: [PATCH 2/3] small fixes for spacer builder

---
 lib/src/widgets/chat.dart | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/src/widgets/chat.dart b/lib/src/widgets/chat.dart
index fff2299f..c8fb0f31 100644
--- a/lib/src/widgets/chat.dart
+++ b/lib/src/widgets/chat.dart
@@ -144,7 +144,7 @@ class Chat extends StatefulWidget {
   /// Custom date header builder gives ability to customize date header widget.
   final Widget Function(DateHeader)? dateHeaderBuilder;
 
-// Custom unreadHeaderData spacer builder gives ability to customize header for unread messages.
+// Custom unread header data builder gives ability to customize header for unread messages.
   final Widget Function(UnreadHeaderData)? unreadHeaderDataBuilder;
 
   /// Time (in ms) between two messages when we will render a date header.
@@ -603,7 +603,7 @@ class ChatState extends State<Chat> {
         lastReadMessageId: widget.scrollToUnreadOptions.lastReadMessageId,
         showUserNames: widget.showUserNames,
         timeFormat: widget.timeFormat,
-        
+        messagesSpacerHeight: widget.messagesSpacerHeight,
       );
 
       _chatMessages = result[0] as List<Object>;

From 18a4e8f303ab948e1756b68236a9d149fceae892 Mon Sep 17 00:00:00 2001
From: Georgiy Voloshin <georgiy.voloshin@tripster.ru>
Date: Mon, 2 Sep 2024 13:04:32 +0300
Subject: [PATCH 3/3] small fix with dart format

---
 lib/src/widgets/chat.dart | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/lib/src/widgets/chat.dart b/lib/src/widgets/chat.dart
index c8fb0f31..e4883cdd 100644
--- a/lib/src/widgets/chat.dart
+++ b/lib/src/widgets/chat.dart
@@ -461,14 +461,15 @@ class ChatState extends State<Chat> {
         height: object.height,
       );
     } else if (object is UnreadHeaderData) {
-      return widget.unreadHeaderDataBuilder?.call(object) ?? AutoScrollTag(
-        controller: _scrollController,
-        index: index ?? -1,
-        key: const Key('unread_header'),
-        child:  UnreadHeader(
-          marginTop: object.marginTop,
-        ),
-      );
+      return widget.unreadHeaderDataBuilder?.call(object) ??
+          AutoScrollTag(
+            controller: _scrollController,
+            index: index ?? -1,
+            key: const Key('unread_header'),
+            child: UnreadHeader(
+              marginTop: object.marginTop,
+            ),
+          );
     } else {
       final map = object as Map<String, Object>;
       final message = map['message']! as types.Message;