Implement an Single-Page / Accordion checkout flow plugin

@bojanz: If anyone would like to work on a more One-Page / Single Page checkout plugin like known from other Shop systems, should that be done in contrib or would you like to ship it with

Currently, we have no customer with demand, but if someone has, it would be super nice to see this sponsored.

Adding "Single-page" back to the title as keyword to make it easier to find this issue for people looking for this functionality.

Hi @skyredwang,

Thanks for your development.
I've tried to use it and encounters some difficulties due to the current system.
Display all the panes at once can't work with some payment systems like commerce_stripe that need to have the gateway set up to fulfill it's isVisible method and be available on the checkoutPanes list.

I think you need to :
* Unset the next step panes and have only the details wrapper.
* Update the checkoutPanes list when you register the callback
* Replace the content of details wrapper by the next step pane form if the previous step is valid
* Reevaluate the summary display of the order in case tax modifications

Thanks

I've sumbmitted a module to provide a way to generate ajax steps behaviors with the inspiration from this thread.
https://www.drupal.org/project/commerce_step_panes →