Cleaned up loose ends with the previous commit and got window close events working on Mac OS X. Woo!

delegate_darwin.go

@@ -10,7 +10,7 @@ import (
 This creates a class goAppDelegate that will be used as the delegate for /everything/. Specifically, it:
 	- runs uitask requests (uitask:)
 	- handles window close events (windowShouldClose:)
-	- handles window resize events (xxxx:)
+	- handles window resize events (windowDidResize: (TODO also windowDidEndLiveResize:?))
 	- handles button click events (buttonClick:)
 */
 
@@ -82,7 +82,7 @@ func makeDelegateClass(name string) (C.Class, error) {
 
 var (
 	delegate_void = []C.char{'v', '@', ':', '@', 0}		// void (*)(id, SEL, id)
-	delegate_bool = []C.char{'#', '@', ':', '@', 0}		// BOOL (*)(id, SEL, id)
+	delegate_bool = []C.char{'c', '@', ':', '@', 0}		// BOOL (*)(id, SEL, id)
 )
 
 // according to errors spit out by cgo, C function pointers are unsafe.Pointer

sysdata_darwin.go

@@ -65,12 +65,14 @@ var classTypes = [nctypes]*classData{
 
 			// we have to specify a content rect to start; it will be overridden soon though
 			win := objc_alloc(_NSWindow)
-			return objc_msgSend_rect_uint_uint_bool(win,
+			win = objc_msgSend_rect_uint_uint_bool(win,
 				_initWithContentRect,
 				0, 0, 100, 100,
 				NSTitledWindowMask | NSClosableWindowMask | NSClosableWindowMask | NSResizableWindowMask,
 				2,					// NSBackingStoreBuffered - the only backing store method that Apple says we should use (the others are legacy)
 				C.BOOL(C.YES))			// defer creation of device until we show the window
+			objc_setDelegate(win, appDelegate)
+			return win
 		},
 		show:		func(what C.id) {
 			C.objc_msgSend_id(what, _makeKeyAndOrderFront, what)

todo.md

@@ -26,7 +26,7 @@ important things:
 - ui.Go() should exit when the main() you pass in exits
 - because the main event loop is not called if initialization fails, it is presently impossible for MsgBoxError() to work if UI initialization fails; this basically means we cannot allow initializiation to fail on Mac OS X if we want to be able to report UI init failures to the user with one
 - Cocoa coordinates have (0,0) at the bottom left: need to fix this somehow
-- Cocoa windows seem to ignore the minizeable flag and closing them always works (is the latter because I don't have a delegate yet?)
+- Cocoa windows seem to ignore the minizeable flag and cannot be live-resized
 - there's no GTK+ error handling whatsoever; we need to figure out how it works
 - make sure GTK+ documentation point differences don't matter
 - button sizes and LineEdit sizes on Windows seem too big; Comboboxes have margins