Allow clicking off modal windows to close them

[NormPlum]

Description of the need

When viewing the Project Details modal on the /admin/modules/install page, I have to specifically click on the close icon to close the modal.

Proposed solution

It'd be nice if I could also click anywhere outside the modal in order to close it.

[olafgrabienski]

Thanks for the report, and welcome to the Backdrop issue queue!

To discuss whether a click outside a modal should close it, we should also consider other dialogs in Backdrop, e.g. inserting a link or an image, or configuring a block. As those dialogs may contain data that could be lost by closing the window accidentally, I'm skeptical about the proposal.

That said, there is another way to close a modal window in Backdrop easily: hit the esc key.

[quicksketch]

Hi @NormPlum! Welcome to the Backdrop community and thank you for opening this issue!

Would it make sense to have this be a per-dialog option? The project details modal is a great situation where there's no chance of data loss, and you're also opening and closing a lot of modals. Click anywhere to close would make sense. However, I think the default should still be the current behavior, to prevent data loss on modals that contain forms. Though I suppose we could make a "smart default" of detecting if there is a form and adjusting the behavior, unless it was manually specified otherwise.

[NormPlum]

I haven't come across other modals in Backdrop yet, so if this doesn't work all the time then understandable that it's not a default feature. But for this page at least I think it'd be handy.