Configuration:
- I have a NSTextField (multiline) inside an NSWindow.
- I have another NSTextField (single line) inside an NSBox (which is in the same window).
- The multiline text field is first responder and is editing.
- I click on the single line text field inside the NSBox to edit that one.
- The NSWindow just closes.
This is on Sonoma 14.2.1.
I subclassed NSWindow and override the close method and put a breakpoint.
Here's the call stack that leads to the window suddenly closing:
#1 0x0000000189c73d90 in -[NSWindow __close] ()
#2 0x000000032343 in -[NSApplication(NSResponder) sendAction:to:from:] ()
#3 0x0000000189b543ac in -[NSControl sendAction:to:] ()
#4 0x0000000189b542f0 in __26-[NSCell _sendActionFrom:]_block_invoke ()
#5 0x0000000189b54218 in -[NSCell _sendActionFrom:] ()
#6 0x0000000189b5413c in -[NSButtonCell _sendActionFrom:] ()
#7 0x0000000189c4c508 in __29-[NSButtonCell performClick:]_block_invoke ()
#8 0x0000000189c4c264 in -[NSButtonCell performClick:] ()
#9 0x0000000189b545a8 in -[NSApplication(NSResponder) sendAction:to:from:] ()
#10 0x0000000189b543ac in -[NSControl sendAction:to:] ()
#11 0x0000000189befb48 in -[NSTextField textDidEndEditing:] ()
#12 0x0000000__CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ ()
#13 0x000000018625c65c in ___CFXRegistrationPost_block_invoke ()
#14 0x000000018625c5a4 in _CFXRegistrationPost ()
#15 0x00000001861971dc in _CFXNotificationPost ()
#16 0x0000000187289ff0 in -[NSNotificationCenter postNotificationName:object:userInfo:] ()
#17 0x0000000189bef754 in -[NSTextView(NSSharing) resignFirstResponder] ()
#18 0x0000000189a9fab8 in -[NSWindow _realMakeFirstResponder:] ()
#19 0x0000000189b4f18c in -[NSWindow(NSEventRouting) _handleMouseDownEvent:isDelayedEvent:] ()
#20 0x0000000189ada79c in -[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] ()
#21 0x0000000189ada45c in -[NSWindow(NSEventRouting) sendEvent:] ()
#22 0x000000018a1879f4 in -[NSApplication(NSEventRouting) sendEvent:] ()
#23 0x0000000189dd6908 in -[NSApplication _handleEvent:] ()
#24 0x00000001899a1d74 in -[NSApplication run] ()
The mouse click is no where near the close button in the title bar.