(OSX) Some logic fixups

apple/OSX/en.lproj/MainMenu.xib

@@ -388,11 +388,9 @@
 				<nil key="NSViewClass"/>
 				<nil key="NSUserInterfaceItemIdentifier"/>
 				<object class="NSView" key="NSWindowView" id="439893737">
-					<reference key="NSNextResponder"/>
+					<nil key="NSNextResponder"/>
 					<int key="NSvFlags">256</int>
 					<string key="NSFrameSize">{480, 360}</string>
-					<reference key="NSSuperview"/>
-					<reference key="NSWindow"/>
 				</object>
 				<string key="NSScreenRect">{{0, 0}, {2560, 1418}}</string>
 				<string key="NSMaxSize">{10000000000000, 10000000000000}</string>
@@ -467,8 +465,8 @@
 							<int key="NSTag">1</int>
 							<bool key="NSEnabled">YES</bool>
 							<object class="NSComboBoxCell" key="NSCell" id="50876060">
-								<int key="NSCellFlags">342884416</int>
-								<int key="NSCellFlags2">272630784</int>
+								<int key="NSCellFlags">74448961</int>
+								<int key="NSCellFlags2">268436480</int>
 								<string key="NSContents"/>
 								<reference key="NSSupport" ref="698260743"/>
 								<string key="NSCellIdentifier">_NS:9</string>

apple/RetroArch/main.m

@@ -517,6 +517,11 @@ int main(int argc, char *argv[])
    for (RAModuleInfo* i in RAModuleInfo.getModules)
       [cb addItemWithObjectValue:i];
 
+   if (cb.numberOfItems)
+      [cb selectItemAtIndex:0];
+   else
+      apple_display_alert(@"No libretro cores were found.", @"RetroArch");
+
    // Run RGUI if needed
    if (!_wantReload)
       apple_run_core(nil, 0);
@@ -550,7 +555,11 @@ int main(int argc, char *argv[])
    if (filenames.count == 1 && filenames[0])
    {
       _file = filenames[0];
-      [self chooseCore];
+      
+      if (!_loaded)
+         _wantReload = true;
+      else
+         [self chooseCore];
       
       [sender replyToOpenOrPrint:NSApplicationDelegateReplySuccess];
    }
@@ -643,6 +652,11 @@ int main(int argc, char *argv[])
       apple_frontend_post_event(&event_basic_command, (void*)((NSMenuItem*)sender).tag);
 }
 
+- (void)alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo
+{
+   [NSApplication.sharedApplication stopModal];
+}
+
 @end
 
 int main(int argc, char *argv[])

apple/RetroArch/utility.m

@@ -35,9 +35,10 @@ void apple_display_alert(NSString* message, NSString* title)
    alert.informativeText = message;
    alert.alertStyle = NSInformationalAlertStyle;
    [alert beginSheetModalForWindow:RetroArch_OSX.get->window
-          modalDelegate:nil
-          didEndSelector:nil
+          modalDelegate:apple_platform
+          didEndSelector:@selector(alertDidEnd:returnCode:contextInfo:)
           contextInfo:nil];
+   [NSApplication.sharedApplication runModalForWindow:alert.window];
 #endif
 }