From dcfefa21abdd3e867d5a9d46695a39550ff93553 Mon Sep 17 00:00:00 2001
From: HONGFEI YANG <hongfeiyang.au@gmail.com>
Date: Tue, 22 Feb 2022 18:51:09 +1100
Subject: [PATCH] fix: fixed casting null to Tuple2 when link dialog is
 dismissed without any input (e.g. barrier dismissed) (#681)

---
 lib/src/widgets/toolbar/link_style_button.dart | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/src/widgets/toolbar/link_style_button.dart b/lib/src/widgets/toolbar/link_style_button.dart
index e479481c..9ca83fb6 100644
--- a/lib/src/widgets/toolbar/link_style_button.dart
+++ b/lib/src/widgets/toolbar/link_style_button.dart
@@ -120,7 +120,11 @@ class _LinkStyleButtonState extends State<LinkStyleButton> {
         return _LinkDialog(
             dialogTheme: widget.dialogTheme, link: link, text: text);
       },
-    ).then(_linkSubmitted);
+    ).then(
+      (value) {
+        if (value != null) _linkSubmitted(value);
+      },
+    );
   }
 
   String? _getLinkAttributeValue() {