Create and set a page_for_posts in the site editor

[jameskoster]

Related to #63666.

When the homepage is set to display a static page, if you want to create a page to display latest posts you must exit the site editor and configure the reading settings which is quite disruptive.

In such cases, the UI might conditionally surface an option to create a page for the blog within the site editor:

If the user selects the option to create a blog, the new page is created as normal, and automatically set as page_for_posts.

[richtabor]

In such cases, the UI might conditionally surface an option to create a page for the blog within the site editor:

Is this assuming you did not create a blog page when you assigned a static front page?

[jameskoster]

Yes, this menu would only appear when a static homepage is set, but page_for_posts is unset. IE this configuration:

[jasmussen]

I wonder if this is dependant on #60772. It wouldn't really make sense without it?

[jameskoster]

Not necessarily, this affordance is about allowing users to create and set page_for_posts when a static homepage is configured.

Currently to do this you need to create the page, then exit the site editor, go to reading settings and set that new page as the "Posts page"... not a particularly smooth flow! :D

This pattern can be replicated for other dynamic pages. For instance if a public post type (e.g. Products) exists we might allow users to create a "Products page" from this menu.

[jasmussen]

I'm mostly asking because of the "Add new page" dropdown being shown in context of the pages section. Does it make sense to have this ability there, if the end result of what you create doesn't live in that section? Without that unification, "Blog page" remains a template, and could live in "Add new template" instead. I'm pro-unification, to be clear, just not sure this dropdown makes sense until such a thing has happened first.

[jameskoster]

Does it make sense to have this ability there, if the end result of what you create doesn't live in that section?

That's one of the confusing pieces around the posts page UX: if you have a static homepage and a posts page, the posts page is included in the pages list. But if you don't have a static homepage and display latest posts on the homepage, then it doesn't 😓

If anything I'd say it's blocked by #63748.