From 4259eb33de6835b5c77d92c553bad2527babd43d Mon Sep 17 00:00:00 2001 From: li3317 Date: Tue, 23 Jan 2024 23:22:56 -0800 Subject: [PATCH] add explanation for len attribute in handleHistoryChange --- lib/src/widgets/quill/quill_controller.dart | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/src/widgets/quill/quill_controller.dart b/lib/src/widgets/quill/quill_controller.dart index c60083fe..2771cd00 100644 --- a/lib/src/widgets/quill/quill_controller.dart +++ b/lib/src/widgets/quill/quill_controller.dart @@ -245,6 +245,8 @@ class QuillController extends ChangeNotifier { } void _handleHistoryChange(int? len) { + // move cursor according to the length inserted or deleted from redo or undo + // operation. len is the length inserted or deleted. if (len! != 0) { // if (this.selection.extentOffset >= document.length) { // // cursor exceeds the length of document, position it in the end