Improve Admin Bar UX

[azaozz]

The sub-menus on the admin bar are a bit hard to use. They are too "jumpy" especially if there are several sub-menu levels. If we have jQuery and hoverIntent on them, the UX becomes a lot better.

[azaozz]

In [18488]:

Admin bar: use jQuery if loaded to improve UX, fixes #18299

[azaozz]

In [18495]:

Admin bar: fix the Shortlink menu when using jQuery, see #18299

[johnbillion]

Adding hoverIntent to the admin bar menu is a big improvement (stops menus from annoyingly popping open when you're just moving your mouse over the admin bar).

I wonder though whether the timeout could be reduced by just a tiny bit? There's a delay that, while short, is noticable.

[nacin]

Agreed on the slightly slow timeout.

[andrewryno]

#17049 for hoverIntent

[johnbillion]

Replying to nacin:

Agreed on the slightly slow timeout.

Patch which shaves a tad off the timeout for slightly more responsive menus.

[azaozz]

In [18849]:

Speed up the admin bar drop-downs a bit when using hoverIntent, props johnbillion, fixes #18299

[sabernhardt]

#24655 was marked as a duplicate.