Merge pull request Expensify#88760 from Expensify/claude-fixSAMLCancelSignInState

Fix SAML cancel leaving sign-in page without email field

Author: grgia

src/pages/signin/SAMLSignInPage/index.native.tsx

@@ -25,6 +25,13 @@ function SAMLSignInPage() {
     const {translate} = useLocalize();
     const hasOpenedAuthSession = useRef(false);
 
+    const handleExitSAMLFlow = useCallback(() => {
+        clearSignInData();
+        Navigation.isNavigationReady().then(() => {
+            Navigation.goBack();
+        });
+    }, []);
+
     /**
      * Handles in-app navigation once we get a response back from Expensify
      */
@@ -80,16 +87,16 @@ function SAMLSignInPage() {
         openAuthSessionAsync(SAMLUrl, CONST.SAML_REDIRECT_URL)
             .then((response: WebBrowserAuthSessionResult) => {
                 if (response.type !== 'success') {
-                    Navigation.goBack();
+                    handleExitSAMLFlow();
                     return;
                 }
                 handleNavigationStateChange(response.url);
             })
             .catch((error) => {
                 Log.hmmm('SAML sign in failed', {error});
-                Navigation.goBack();
+                handleExitSAMLFlow();
             });
-    }, [SAMLUrl, handleNavigationStateChange]);
+    }, [SAMLUrl, handleNavigationStateChange, handleExitSAMLFlow]);
 
     useEffect(() => {
         // If we don't have a valid login to pass here, direct the user back to a clean sign in state to try again
@@ -130,12 +137,7 @@ function SAMLSignInPage() {
             {showNavigation && (
                 <HeaderWithBackButton
                     title=""
-                    onBackButtonPress={() => {
-                        clearSignInData();
-                        Navigation.isNavigationReady().then(() => {
-                            Navigation.goBack();
-                        });
-                    }}
+                    onBackButtonPress={handleExitSAMLFlow}
                 />
             )}
             <FullPageOfflineBlockingView>