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-rw-r--r--cocoa/PlatCocoa.mm7
1 files changed, 7 insertions, 0 deletions
diff --git a/cocoa/PlatCocoa.mm b/cocoa/PlatCocoa.mm
index da30ac4f4..f30bc93e4 100644
--- a/cocoa/PlatCocoa.mm
+++ b/cocoa/PlatCocoa.mm
@@ -1782,6 +1782,13 @@ PRectangle ListBoxImpl::GetDesiredRect() {
rcDesired.right = rcDesired.left + maxItemWidth + aveCharWidth;
rcDesired.right += 4; // Ensures no truncation of text
+ if (@available(macOS 11, *)) {
+ // macOS 11 requires some extra space possibly due to the rounded highlight.
+ // There may be a better way to discover how much space is required
+ // but an 22 pixels fixes it for almost all tested cases.
+ rcDesired.right += 22;
+ }
+
if (Length() > rows) {
[scroller setHasVerticalScroller: YES];
rcDesired.right += [NSScroller scrollerWidthForControlSize: NSControlSizeRegular