PayPal buttons display before required fields are completed

Problem/Motivation

When enabling PayPal payments via the Webform Booking module, the PayPal button is rendered regardless of whether required fields on the form have been completed or not. This leads to a poor user experience, as users can attempt to proceed with payment before filling in essential details such as name, email, and phone number.

This behaviour seems to bypass the standard Webform validation or visibility logic — particularly the required status of fields — and displays the PayPal container prematurely.

Steps to reproduce

• Create a booking form with required fields (e.g., first name, email, telephone).
• Enable PayPal payment via Webform Booking.
• Load the form without filling any fields.
• Observe that the PayPal button is already visible.

Expected behaviour: The PayPal button should remain hidden or disabled until all required fields are completed — ideally after validation.

Workaround: I’ve implemented a JavaScript and CSS-based workaround on my site to hide the PayPal buttons until the relevant fields are filled, but I believe this should be handled automatically by the module itself.

Proposed resolution

Consider adding built-in support to delay or conditionally render the PayPal button until required fields are completed — or trigger Webform validation logic before showing the button.

Thanks for your awesome work on this module. I really appreciate it — just hoping this can be made more user-friendly out of the box.