1 files changed, 45 insertions, 0 deletions
diff --git a/dialog_darwin.m b/dialog_darwin.m
new file mode 100644
index 0000000..226ad4b
--- /dev/null
+++ b/dialog_darwin.m
@@ -0,0 +1,45 @@
+// 15 may 2014
+
+#include "objc_darwin.h"
+#include "_cgo_export.h"
+#import <AppKit/NSAlert.h>
+#import <AppKit/NSWindow.h>
+#import <AppKit/NSApplication.h>
+
+#define to(T, x) ((T *) (x))
+#define toNSWindow(x) to(NSWindow, (x))
+
+static intptr_t alert(id parent, NSString *primary, NSString *secondary, NSAlertStyle style)
+{
+	NSAlert *box;
+
+	box = [NSAlert new];
+	[box setMessageText:primary];
+	if (secondary != nil)
+		[box setInformativeText:secondary];
+	[box setAlertStyle:style];
+	// TODO is there a named constant? will also need to be changed when we add different dialog types
+	[box addButtonWithTitle:@"OK"];
+	if (parent == nil)
+		return (intptr_t) [box runModal];
+	else {
+		NSInteger ret;
+
+		[box beginSheetModalForWindow:toNSWindow(parent)
+			modalDelegate:[NSApp delegate]
+			didEndSelector:@selector(alertDidEnd:returnCode:contextInfo:)
+			contextInfo:&ret];
+		// TODO
+		return (intptr_t) ret;
+	}
+}
+
+void msgBox(id parent, id primary, id secondary)
+{
+	alert(parent, (NSString *) primary, (NSString *) secondary, NSInformationalAlertStyle);
+}
+
+void msgBoxError(id parent, id primary, id secondary)
+{
+	alert(parent, (NSString *) primary, (NSString *) secondary, NSCriticalAlertStyle);
+}