Expose window anchor directly through MSAL API

Author: kai

MSAL/src/MSALPublicClientApplication.m

@@ -1205,6 +1205,7 @@ - (void)acquireTokenWithParameters:(MSALInteractiveTokenParameters *)parameters
     msidParams.currentRequestTelemetry.schemaVersion = HTTP_REQUEST_TELEMETRY_SCHEMA_VERSION;
     msidParams.currentRequestTelemetry.apiId = [msidParams.telemetryApiId integerValue];
     msidParams.currentRequestTelemetry.tokenCacheRefreshType = TokenCacheRefreshTypeNoCacheLookupInvolved;
+    msidParams.presentationAnchorWindow= parameters.windowAnchor;
 
     MSIDAccountMetadataState signInState = [self accountStateForParameters:msidParams error:nil];
 

MSAL/src/public/MSALInteractiveTokenParameters.h

@@ -68,6 +68,16 @@ NS_ASSUME_NONNULL_BEGIN
  */
 @property (nonatomic, readonly, copy) MSALWebviewParameters *webviewParameters;
 
+/**
+ The window anchor for presenting SsoExtension on iOS and macOS.
+ Without providing window anchor or the parentViewController from MSALWebviewParameters will result unexpected SsoExtension behavior
+ */
+#if TARGET_OS_IPHONE
+@property (nonatomic, readonly, copy) UIWindow *windowAnchor;
+#else
+@property (nonatomic, readonly, copy) NSWindow *windowAnchor;
+#endif
+
 #if TARGET_OS_IPHONE
 
 /**