From 97707c9f57234bf7992bac03bd52cb3fdd00fcfa Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 11 Oct 2014 16:26:06 +0300
Subject: [PATCH] Subclass NSWindow to eat keyDown events so they won't beep

---
 source/graphics/cocoa/cocoawindow.m | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/source/graphics/cocoa/cocoawindow.m b/source/graphics/cocoa/cocoawindow.m
index 745488b..1118126 100644
--- a/source/graphics/cocoa/cocoawindow.m
+++ b/source/graphics/cocoa/cocoawindow.m
@@ -4,15 +4,12 @@
 #include "cocoadisplay.h"
 #include "cocoawindow.h"
 
-#if __MAC_OS_X_VERSION_MAX_ALLOWED < 1060
-@protocol NSWindowDelegate <NSObject> @end
-#endif
-
-@interface WindowDelegate: NSObject <NSWindowDelegate> {
+@interface MspWindow: NSWindow {
 	int dummy_member;
 }
 
 - (BOOL)windowShouldClose:(id)sender;
+- (void)keyDown:(NSEvent *)event;
 
 @end
 
@@ -20,7 +17,6 @@ struct _CocoaWindow
 {
 	CocoaDisplay *display;
 	__strong NSWindow *window;
-	__strong WindowDelegate *delegate;
 	NSUInteger style;
 };
 
@@ -32,7 +28,7 @@ CocoaWindow *create_window(CocoaDisplay *display, unsigned width, unsigned heigh
 	NSUInteger style = NSTitledWindowMask|NSClosableWindowMask;
 	if(resizable)
 		style |= NSResizableWindowMask;
-	NSWindow *window = [NSWindow alloc];
+	NSWindow *window = [MspWindow alloc];
 	window = [window initWithContentRect:rect styleMask:style backing:NSBackingStoreBuffered defer:NO];
 	[window setAcceptsMouseMovedEvents:YES];
 
@@ -43,9 +39,6 @@ CocoaWindow *create_window(CocoaDisplay *display, unsigned width, unsigned heigh
 	wrapper->window = window;
 	wrapper->style = style;
 
-	wrapper->delegate = [[WindowDelegate alloc] init];
-	[window setDelegate:wrapper->delegate];
-
 	if(!windows)
 		windows = CFDictionaryCreateMutable(NULL, 0, NULL, NULL);
 	CFDictionaryAddValue(windows, window, wrapper);
@@ -63,7 +56,6 @@ void destroy_window(CocoaWindow *window)
 	}
 
 	[window->window release];
-	[window->delegate release];
 	free(window);
 }
 
@@ -100,7 +92,7 @@ void hide_window(CocoaWindow *window)
 	(void)window;
 }
 
-@implementation WindowDelegate
+@implementation MspWindow
 
 - (BOOL)windowShouldClose:(id)sender
 {
@@ -116,4 +108,10 @@ void hide_window(CocoaWindow *window)
 	return YES;
 }
 
+- (void)keyDown:(NSEvent *)event
+{
+	// Eat the event to avoid beeping
+	(void)event;
+}
+
 @end
-- 
2.43.0