FAPE + Panels IPE = Great

We'll call this Alpha 1.

FAPE is not yet added to the build so you'll need to manually install it if you want to test this.

There's still a lot of kinks to work out in this implementation, so here's some of the stuff that's wrong.

• After adding a new image, it auto submits and takes you to step 2, rather than just previewing and staying on step 1
• After editing an image field, the node is saved after step 1. We should delay this until the multi step is completed. We can probably just add a check on the clicked button in panopoly_magic_fape_submit(). Or perhaps we need to find a way to delay until the save button in IPE is clicked?
• When editing a field body, it goes to step 2 even though there are no options. I need to reinstall a fresh version w/ panelizer enabled to see if this is a general panelizer issue, or if this was introduced somehow.
• Edit forms for 'phantom' fields show up. Things like node categories etc. Not sure if this happens with vanilla panelizer / FAPE or not. Need to take a look at this on a vanilla install as well.
• Need to add FAPE to the build scripts
• Better checking / handling all around to make sure things are properly added to fieldsets. Much of our current handling of this for fieldable panels panes doesn't kick in for this

This is generally working, but there's definitely quite a bit of polish to add.

Here's alpha 2.

Improvements:

• This now saves almost all fields (body field is the exception) at the end of the wizard, rather than when data is entered
• Better handling of fieldsets for edit fields

Issues:

• Image widget still auto submits to next step after changing the image.
• There is some weirdness when moving backwards between steps.
• Need to resolve handling of body fields. For some reason custom form state attributes (the modified entity) gets cleared out between steps for body fields.

This patch requires #1788170: Allow the context object to be altered by form submitters and validators and #1785056: Remove contextual dependency

Ack. The second patch was wrong. This should be used in replacement of the 1772824-fape.patch.

-- There is some weirdness when moving backwards between steps.

What wierdness are you seeing? I think it is wierd you can move backwards anyway and that there are empty steps, but thats a ctools issue :)

Try moving backwards with an image widget. It doesn't properly re-populate the form fields when moving from step 2 back to step 1 (assuming you changed the image in step 1)

-- Need to resolve handling of body fields. For some reason custom form state attributes (the modified entity) gets cleared out between steps for body fields.

How can i replicate this and does your patch to panels context fix this or http://drupal.org/files/fape-panoply-widgets.patch? I wasn't able to replicate it.

No. That patch is just for improved handling for fieldsets. Currently the body field is special cased in the submitter to save after step 1. It's not optimal, but it works. See the if statement in panopoly_magic_fape_submit().

Here's a patch which fixes moving backwards when editing image fields