mac/apphub: move cocoa-cb into AppHub

osdep/mac/app_hub.swift

@@ -28,6 +28,9 @@ class AppHub: NSObject {
 #if HAVE_MACOS_TOUCHBAR
     @objc var touchBar: TouchBar?
 #endif
+#if HAVE_MACOS_COCOA_CB
+    var cocoaCb: CocoaCB?
+#endif
 
     var isApplication: Bool { get { NSApp is Application } }
 
@@ -57,8 +60,12 @@ class AppHub: NSObject {
     }
 
     @objc func initCocoaCb() {
-        guard let app = NSApp as? Application, let mpv = mpv else { return }
-        DispatchQueue.main.sync { app.initCocoaCb(mpv) }
+#if HAVE_MACOS_COCOA_CB
+        if !isApplication { return }
+        DispatchQueue.main.sync {
+            self.cocoaCb = self.cocoaCb ?? CocoaCB(mpv_create_client(mpv, "cocoacb"))
+        }
+#endif
     }
 
     @objc func startRemote() {

osdep/mac/application.m

@@ -59,7 +59,6 @@ static void terminate_cocoa_application(void)
 
 @implementation Application
 @synthesize openCount = _open_count;
-@synthesize cocoaCB = _cocoa_cb;
 
 - (void)sendEvent:(NSEvent *)event
 {
@@ -100,16 +99,6 @@ static void terminate_cocoa_application(void)
 }
 #endif
 
-- (void)initCocoaCb:(struct mpv_handle *)ctx
-{
-#if HAVE_MACOS_COCOA_CB
-    if (!_cocoa_cb) {
-        mpv_handle *mpv = mpv_create_client(ctx, "cocoacb");
-        [NSApp setCocoaCB:[[CocoaCB alloc] init:mpv]];
-    }
-#endif
-}
-
 - (void)applicationWillFinishLaunching:(NSNotification *)notification
 {
     NSAppleEventManager *em = [NSAppleEventManager sharedAppleEventManager];

osdep/mac/application_objc.h

@@ -18,14 +18,6 @@
 #import <Cocoa/Cocoa.h>
 #include "osdep/mac/application.h"
 
-@class CocoaCB;
-struct mpv_event;
-struct mpv_handle;
-
 @interface Application : NSApplication
-
-- (void)initCocoaCb:(struct mpv_handle *)ctx;
-
 @property(nonatomic, assign) size_t openCount;
-@property(nonatomic, retain) CocoaCB *cocoaCB;
 @end