From 3fe8c4043437e50898b68060ba530bad355ac9f3 Mon Sep 17 00:00:00 2001
From: Richard Lau <liurichao@jc-inter.com>
Date: Fri, 25 Aug 2023 19:42:49 +0800
Subject: [PATCH] Add a callback for dismiss to inform the caller to implement
 the animation.

---
 lib/src/side_sheet_entry.dart | 5 +++++
 lib/src/side_sheet_host.dart  | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/lib/src/side_sheet_entry.dart b/lib/src/side_sheet_entry.dart
index 0c8a2d7..354f1c5 100644
--- a/lib/src/side_sheet_entry.dart
+++ b/lib/src/side_sheet_entry.dart
@@ -33,6 +33,8 @@ class SideSheetEntry<T> {
   /// A decoration widget builder which helps creating custom design.
   final DecorationBuilder? decorationBuilder;
 
+  final Function? dismissCallback;
+
   SideSheetEntry({
     required this.id,
     required this.index,
@@ -43,6 +45,7 @@ class SideSheetEntry<T> {
     required this.position,
     required this.dismissible,
     required this.decorationBuilder,
+    this.dismissCallback,
   });
 
   factory SideSheetEntry.createNewElement({
@@ -58,6 +61,7 @@ class SideSheetEntry<T> {
     required bool dismissible,
     required int index,
     bool initWithAnimation = true,
+    Function? dismissCB,
   }) {
     final key = UniqueKey();
 
@@ -85,6 +89,7 @@ class SideSheetEntry<T> {
       position: position,
       dismissible: dismissible,
       decorationBuilder: decorationBuilder,
+      dismissCallback: dismissCB,
     );
   }
 
diff --git a/lib/src/side_sheet_host.dart b/lib/src/side_sheet_host.dart
index d68a702..b297c64 100644
--- a/lib/src/side_sheet_host.dart
+++ b/lib/src/side_sheet_host.dart
@@ -112,6 +112,7 @@ class NestedSideSheetState extends State<NestedSideSheet>
     bool dismissible = true,
     Duration? animationDuration,
     Duration? reverseAnimationDuration,
+    Function? dismissCallback,
   }) async {
     if (!mounted || _blockGestures) return null;
     final completer = Completer<T?>();
@@ -127,6 +128,7 @@ class NestedSideSheetState extends State<NestedSideSheet>
       dismissible: dismissible,
       animationDuration: _setSettleDuration(animationDuration),
       reverseDuration: _setReverseSettleDuration(reverseAnimationDuration),
+      dismissCB: dismissCallback,
     );
     _sheetEntries.add(newEntry);
     _notifyStateChange();
@@ -155,6 +157,7 @@ class NestedSideSheetState extends State<NestedSideSheet>
       if (_sheetEntries.last != entry) {
         _removeSheetSilently(entry);
       }
+      entry.dismissCallback?.call();
     }
 
     _notifyStateChange();