1 files changed, 37 insertions, 1 deletions
diff --git a/Source/SPObjectAdditions.m b/Source/SPObjectAdditions.m
index 9f51d652..f29aa3b4 100644
--- a/Source/SPObjectAdditions.m
+++ b/Source/SPObjectAdditions.m
@@ -140,7 +140,7 @@ retryDescribe:
 		if([notificationObserver isKindOfClass:[NSView class]]) {
 			[val appendFormat:@"  view info: id=%@, tag=%ld\n",[(NSView *)notificationObserver identifier], [(NSView *)notificationObserver tag]];
 		}
-		[val appendFormat:@"\nbacktrace:\n%@\n\n",[NSThread callStackSymbols]];
+		[val appendFormat:@"\nregistration backtrace:\n%@\n\n",[NSThread callStackSymbols]];
 		
 		[gScrollViewListeners setObject:val forKey:key];
 	}
@@ -186,3 +186,39 @@ retryDescribe:
 
 
 @end
+
+#pragma mark -
+
+@interface NSAlert (ApplePrivate)
+
+- (IBAction)buttonPressed:(id)sender;
+
+@end
+
+@implementation NSAlert (SPAlertDebug)
+
++ (void)load
+{
+	static dispatch_once_t onceToken;
+	
+	dispatch_once(&onceToken, ^{
+		Class alertClass = [self class];
+		
+		SEL orig = @selector(buttonPressed:);
+		SEL exch = @selector(sp_buttonPressed:);
+		
+		Method origM = class_getInstanceMethod(alertClass, orig);
+		Method exchM = class_getInstanceMethod(alertClass, exch);
+		
+		method_exchangeImplementations(origM, exchM);
+	});
+}
+
+- (IBAction)sp_buttonPressed:(id)obj
+{
+	NSLog(@"%s of %@ title=\n%@\ntext=\n%@",__func__,self,[self messageText],[self informativeText]);
+	
+	[self sp_buttonPressed:obj];
+}
+
+@end