Implement modal windows in admin

[rob1n]

​http://leftjustified.net/lab/wordpress/modal-windows as brought up in #2560.

I think these would be great since they not only provide UI unity (no matter what browser the user is using) and they look to be more reliable than alert() and confirm() in terms of cross-platform consistency.

Plus, they look freakin' cool.

[devil1591]

This implementation is much slower than a standard alert() or confirm().
Furthermore, this demo is very buggy (click delete then press enter fast).

The remember checkbox is a nice idea.

[Sewar]

I think the way ​Widgets plugin does this is better.

[rob1n]

Let's target this for 2.3, and see how we can do it with jQuery (the new shiznit).

[chess64]

I started doing this, but I think it would be better to wait until the rest of the admin interface is moved to jQuery.

[masquerade]

Is there a fallback for screenreaders which can actually handle javascript alerts?

And this breaks my normal experience with any web application and alert()s. I think the proper buttons should be selected by default if we're going to try to do this at the very least, as well as a tab order that matches the default tab order of browsers.

-1 in its current form.

[rob1n]

Replying to masquerade:

Is there a fallback for screenreaders which can actually handle javascript alerts?

I'm sure it could be done. But then again, I wonder if any screen readers actually can use the whole admin and all functionality... Just saying.

And this breaks my normal experience with any web application and alert()s. I think the proper buttons should be selected by default if we're going to try to do this at the very least, as well as a tab order that matches the default tab order of browsers.

This is easily done.

-1 in its current form.

So you'd be willing to consider modal windows in another form? ;)

[bdude]

It definitely is cool, but not really necessary.

[westi]

Punt to 2.6 not for now.

[DD32]

Is this really needed? Such windows are used by TinyMCE for input, And thickbox iframes are used elsewhere for larger content, A quick alert/confirm box for confirming deletions pops up quicker than any JS/CSS implementation will do.. And since theres been no traction in the last 2 years, It seems a wontfix to me.

Someone feel free to open this in the future if you believe its worth implementing, or actually has a major usage..