Appropriate hook to add CSS for all pages in contribution flow?

[Chris Burgess]

I wanted to modify CSS on a contribution flow (first page, confirm page, thanks page).

The first page is easy enough via hook_civicrm_formAlter() but I was confused that none of hook_civicrm_pageRun(), hook_civicrm_post_process() nor hook_civicrm_alterContent() was able to insert a CSS file using CRM_Core_Resources::singleton()->addStyleFile().

I ended up using hook_civicrm_config() which works fine, but it smells bad. Is there a hook I should be using that would handle this correctly?

The site in question is 4.3.x (they'll upgrade one day!) and I haven't tested the same behaviour against current versions.

[totten]

Did you try using https://github.com/eileenmcnaughton/civicrm_developer to see what hooks run?

[Chris Burgess]

Great pointer, should have considered that.

The answer is, none of them. The only hook civicrm_developer suggestd which I hadn't considered trying was buildAmount.

buildForm seems to be used on the confirm page, but the CSS doesn't get added if you call addStyleFile from there.

It's 4.3.7 so I'm not going to dig further, I'll revisit next time I fancy up a contribute form for a current release.