* always default "save my card for next time" checkbox to unchecked:
This is based on the previous checkout behaviour.
I.e. the shopper has to actively opt-in to save their card.
* Implement "save payment method for next purchase" in checkout:
- send "save card" option using existing post key
- wc-stripe-new-payment-method
- comment out inappropriate use of "save" when using a saved card (tbc)
* don't hard code the payment gateway name in 'save payment method' key
* refactor "save payment info" checkbox so payment methods can opt-in:
- Add options.allowSavePaymentToken to payment method
registration / config.
- Opt-in in Stripe CC, it allows saved cards.
- Remove render of "save my card" checkbox from Stripe CC UI component.
- Render "save my card" checkbox automatically in payment method tab
(based on allowSavePaymentToken option).
+ todo/follow up comments
* rejig "save my payment method" behaviour so it's generic:
- Any payment method that supports "save" can opt-in:
- options.allowSavePaymentToken = true/false
- handle `wc-XXX-new-payment-method` key server side to persist
- Add support in payment context/state reducer for storing checkbox
state, expose value and action via context
- Convert state flag to appropriate API key/value in payment processor
- Remove previous stripe-specific implementation
+ bonus add comment to payment context about preserving state in
PRISTINE action
* rename payment method "allow save" option, more consistent with UI
* remove last vestiges of gateway-specific "save card" impl:
- No need to pass CheckboxControl to payment methods; checkbox is
now handled automatically by checkout.
- Remove shouldSavePayment prop passing through various layers of
stripe payment processing code. (Now handled in context/processor.)
* change new option property name and shape. Also adds validation.
* update type-defs
* use more reliable `activePaymentMethod` for saved payment method
Co-authored-by: Darren Ethier <darren@roughsmootheng.in>