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optional card holder validation #1

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optional card holder validation #1

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11 changes: 11 additions & 0 deletions lib/credit_card_form.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,8 @@ class CreditCardForm extends StatefulWidget {
this.isHolderNameVisible = true,
this.isCardNumberVisible = true,
this.isExpiryDateVisible = true,
this.cardHolderLength,
this.cardHolderValidationMessage = 'Maximum length is 30',
}) : super(key: key);

final String cardNumber;
Expand All @@ -50,6 +52,7 @@ class CreditCardForm extends StatefulWidget {
final String cvvValidationMessage;
final String dateValidationMessage;
final String numberValidationMessage;
final String cardHolderValidationMessage;
final void Function(CreditCardModel) onCreditCardModelChange;
final Color themeColor;
final Color textColor;
Expand All @@ -59,6 +62,8 @@ class CreditCardForm extends StatefulWidget {
final bool isHolderNameVisible;
final bool isCardNumberVisible;
final bool isExpiryDateVisible;
// optional cardHolderLength param, if provided, will do validation
final int? cardHolderLength;
final GlobalKey<FormState> formKey;

final InputDecoration cardNumberDecoration;
Expand Down Expand Up @@ -318,6 +323,12 @@ class _CreditCardFormState extends State<CreditCardForm> {
FocusScope.of(context).unfocus();
onCreditCardModelChange(creditCardModel);
},
validator: (String? value) {
if (widget.cardHolderLength != null && value!.length > widget.cardHolderLength!) {
return widget.cardHolderValidationMessage;
}
return null;
},
),
),
),
Expand Down