Workaround menu click-through on macOS 14.1.

ui/platform/linux/ui_utility_linux.h

@@ -29,6 +29,9 @@ inline void UpdateOverlayed(not_null<QWidget*> widget) {
 inline void ShowOverAll(not_null<QWidget*> widget, bool canFocus) {
 }
 
+inline void AcceptAllMouseInput(not_null<QWidget*> widget) {
+}
+
 inline void DisableSystemWindowResize(not_null<QWidget*> widget, QSize ratio) {
 }
 

ui/platform/mac/ui_utility_mac.mm

@@ -77,6 +77,23 @@ void ShowOverAll(not_null<QWidget*> widget, bool canFocus) {
 	}
 }
 
+void AcceptAllMouseInput(not_null<QWidget*> widget) {
+	// https://github.com/telegramdesktop/tdesktop/issues/27025
+	//
+	// By default system clicks through fully transparent pixels,
+	// and starting with macOS 14.1 it counts the transparency
+	// incorrectly (as if `y` is mirrored), so when clicking
+	// on a reactions strip outside of the menu column the click
+	// is ignored and made on the underlying window, because at the
+	// bottom of the menu in the same place there is nothing, empty.
+	//
+	// We explicitly request all the input to disable this behavior.
+	//
+	// See https://stackoverflow.com/a/29451199 and comments.
+	NSWindow *window = [reinterpret_cast<NSView*>(widget->winId()) window];
+	[window setIgnoresMouseEvents:NO];
+}
+
 void DrainMainQueue() {
 #ifndef OS_MAC_STORE
 	_dispatch_main_queue_callback_4CF(nullptr);

ui/platform/ui_platform_utility.h

@@ -28,6 +28,7 @@ void UpdateOverlayed(not_null<QWidget*> widget);
 void ShowOverAll(not_null<QWidget*> widget, bool canFocus = true);
 void IgnoreAllActivation(not_null<QWidget*> widget);
 void ClearTransientParent(not_null<QWidget*> widget);
+void AcceptAllMouseInput(not_null<QWidget*> widget);
 
 void DisableSystemWindowResize(not_null<QWidget*> widget, QSize ratio);
 

ui/platform/win/ui_utility_win.h

@@ -32,6 +32,9 @@ inline void ReInitOnTopPanel(not_null<QWidget*> panel) {
 inline void ShowOverAll(not_null<QWidget*> widget, bool canFocus) {
 }
 
+inline void AcceptAllMouseInput(not_null<QWidget*> widget) {
+}
+
 inline void ClearTransientParent(not_null<QWidget*> widget) {
 }
 

ui/widgets/popup_menu.cpp

@@ -490,6 +490,7 @@ void PopupMenu::paintEvent(QPaintEvent *e) {
 		PostponeCall(this, [=] {
 			showChildren();
 			_animatePhase = AnimatePhase::Shown;
+			Platform::AcceptAllMouseInput(this);
 		});
 	} else {
 		paintBg(p);