Focusing on code textareas during setup should select all

[jblz]

Automatically selecting all text in the textarea.code elements on focus reduces the number of steps required to copy the settings to a file and reduces the likelihood of a new user only copying the visible portion at the top.

[nacin]

Automatically selecting on focus/enter/click can be confusing to users, and also buggy — certain keyboard or mouse events might act in strange ways, which pose problems for both accessibility and for keystrokes done by power users. I broke this a few times, though I may have been doing it wrong.

On network.php, we deliberately show all lines, with no scroll. I do want to adjust setup-config.php, as with scrollbars often being hidden in newer browsers and operating systems, it's definitely possible to only grab the visible portion.

I came up with calling .focus() and .select() on the textarea, and it worked well for me. What do you think?

[nacin]

I modified some strings in [21870]. The wp-config ID accidentally landed then.

[jblz]

.focus() and .select() works for me. thanks.

[nacin]

In [21873]:

On setup-config step 2, default to focusing on the textarea and selecting its contents. fixes #21656.