Use notification center on OS X when available.

src/core/mac_delegate.h

@@ -23,14 +23,20 @@ class PlatformInterface;
 }
 
 - (id) initWithHandler: (PlatformInterface*)handler;
+
 // NSApplicationDelegate
 - (BOOL) applicationShouldHandleReopen: (NSApplication*)app hasVisibleWindows:(BOOL)flag;
 - (NSMenu*) applicationDockMenu: (NSApplication*)sender;
+- (void)applicationDidFinishLaunching:(NSNotification*)aNotification;
+- (NSApplicationTerminateReply) applicationShouldTerminate:(NSApplication*)sender;
+
+// NSUserNotificationCenterDelegate
+- (BOOL) userNotificationCenter: (id)center
+    shouldPresentNotification: (id)notification;
+
 - (void) setDockMenu: (NSMenu*)menu;
 - (MacGlobalShortcutBackend*) shortcut_handler;
 - (void) setShortcutHandler: (MacGlobalShortcutBackend*)backend;
-- (void)applicationDidFinishLaunching:(NSNotification*)aNotification;
-- (NSApplicationTerminateReply) applicationShouldTerminate:(NSApplication*)sender;
 - (void) mediaKeyTap: (SPMediaKeyTap*)keyTap receivedMediaKeyEvent:(NSEvent*)event;
 @end
 

src/core/mac_startup.mm

@@ -200,6 +200,12 @@ static BreakpadRef InitBreakpad() {
 #endif
   return NSTerminateNow;
 }
+
+- (BOOL) userNotificationCenter: (id)center shouldPresentNotification: (id)notification {
+  // Always show notifications, even if Clementine is in the foreground.
+  return YES;
+}
+
 @end
 
 @implementation MacApplication
@@ -232,6 +238,12 @@ static BreakpadRef InitBreakpad() {
   // this makes sure the delegate's shortcut_handler is set
   [delegate_ setShortcutHandler:shortcut_handler_];
   [self setDelegate:delegate_];
+
+  Class notification_center_class = NSClassFromString(@"NSUserNotificationCenter");
+  if (notification_center_class) {
+    id notification_center = [notification_center_class defaultUserNotificationCenter];
+    [notification_center setDelegate: delegate_];
+  }
 }
 
 -(void) sendEvent: (NSEvent*)event {

src/widgets/osd_mac.mm

@@ -25,6 +25,7 @@
 #import <GrowlApplicationBridge.h>
 
 #include "core/scoped_nsautorelease_pool.h"
+#include "core/scoped_nsobject.h"
 
 @interface GrowlInterface :NSObject <GrowlApplicationBridgeDelegate> {
 }
@@ -137,8 +138,37 @@ bool OSD::SupportsTrayPopups() {
   return false;
 }
 
+namespace {
+
+bool NotificationCenterSupported() {
+  return NSClassFromString(@"NSUserNotificationCenter");
+}
+
+void SendNotificationCenterMessage(NSString* title, NSString* subtitle) {
+  Class clazz = NSClassFromString(@"NSUserNotificationCenter");
+  id notification_center = [clazz defaultUserNotificationCenter];
+
+  Class user_notification_class = NSClassFromString(@"NSUserNotification");
+  id notification = [[user_notification_class alloc] init];
+  [notification setTitle: title];
+  [notification setSubtitle: subtitle];
+
+  [notification_center deliverNotification: notification];
+}
+
+}
+
 void OSD::ShowMessageNative(const QString& summary, const QString& message,
                             const QString& icon, const QImage& image) {
   Q_UNUSED(icon);
+
+  if (NotificationCenterSupported()) {
+    scoped_nsobject<NSString> mac_message(
+        [[NSString alloc] initWithUTF8String:message.toUtf8().constData()]);
+    scoped_nsobject<NSString> mac_summary(
+        [[NSString alloc] initWithUTF8String:summary.toUtf8().constData()]);
+    SendNotificationCenterMessage(mac_summary.get(), mac_message.get());
+  } else {
     wrapper_->ShowMessage(summary, message, image);
   }
+}