pyobjc_lacontextview_embedded_authentication_ui_quickstart.py

1import LocalAuthentication
2import LocalAuthenticationEmbeddedUI
3from PyObjCTools import AppHelper
4import Cocoa
5
6class AppDelegate(Cocoa.NSObject):
7    def applicationDidFinishLaunching_(self, notification):
8        # 1. Create a window to host the UI
9        self.window = Cocoa.NSWindow.alloc().initWithContentRect_styleMask_backing_defer_(
10            Cocoa.NSMakeRect(0, 0, 400, 300),
11            Cocoa.NSTitledWindowMask | Cocoa.NSClosableWindowMask,
12            Cocoa.NSBackingStoreBuffered,
13            False
14        )
15        
16        # 2. Initialize the LocalAuthentication context
17        self.context = LocalAuthentication.LAContext.alloc().init()
18        
19        # 3. Create the embedded UI view (LAContextView)
20        # This view provides the standard Apple UI for local authentication
21        self.authView = LocalAuthenticationEmbeddedUI.LAContextView.alloc().initWithContext_(self.context)
22        
23        # 4. Add the auth view to the window's content view
24        self.window.contentView().addSubview_(self.authView)
25        self.authView.setFrame_(self.window.contentView().bounds())
26        
27        self.window.makeKeyAndOrderFront_(None)
28        print("Authentication UI Loaded.")
29
30if __name__ == "__main__":
31    app = Cocoa.NSApplication.sharedApplication()
32    delegate = AppDelegate.alloc().init()
33    app.setDelegate_(delegate)
34    AppHelper.runEventLoop()