Nickname improvement

[futurix]

Currently when you change your nickname in profile, you have to save profile to get new nickname as option in the "Display name publicly as" field. It would be great to have some AJAX or plain JS magic to update that without reloading page.

[mattwalters]

It looked like there was already code in user-edit.php to handle updating the nickname, however it didn't account for first name and last name changes. Seems if we're going to handle one case, we might as handle all three.

I removed the extra function for updating the nickname and added to the $(document).ready() function to handle updating the select box based on the first name, last name, and nickname changing.

[janeforshort]

If the patch works, let's drop it in for 2.8. Instant updating would be great for users who don't think to scroll up or down and click save.

[Nicholas91]

Tested on Ubuntu, in Firefox and Opera. MattWalters has done a great job with this patch.

[markjaquith]

(In [11065]) Dynamically update display name as its components are updated in the profile. props to mattwalters for the original patch. fixes #8508

[hallsofmontezuma]

Check for duplicates before adding to the dropdown. For instance, if you have-

Username: John
First Name: John
Last Name: Smith
Nickname: John

You'll have-

Display Name Publicly as

John
John
John
Smith
John Smith
Smith John

[thee17]

I think that should be opened as a different ticket so this can be closed in 2.8 and have this fix in 2.8.1

[azaozz]

Replying to thee17:
Yes, also the js for this has been moved to user-profile.js.

[hallsofmontezuma]

thee17, I agree

moved to ​http://core.trac.wordpress.org/ticket/10030