Draft combobox design pattern

[ZoeBijl]

Copied from original issue: w3c/aria#349
From @jnurthen on April 25, 2016 17:47

Merge Combo and autocomplete
Rewrite description based on ARIA 1.1 spec definition

When working on this issue, there is some old content that may be useful in the file aria-practices-DeletedSectionsArchive.html.
The relevant sections can be seen here:
https://rawgit.com/w3c/aria-practices/master/aria-practices-DeletedSectionsArchive.html#combobox
And at:
https://rawgit.com/w3c/aria-practices/master/aria-practices-DeletedSectionsArchive.html#autocomplete

[ZoeBijl]

From @jnurthen on April 25, 2016 18:21

Keys:
Space and Alt+Down expand list without changing the value (both optional)
Down (change the selected displayed in the list) and optionally expand the list.

[ZoeBijl]

From @jnurthen on April 25, 2016 18:24

the button needs to be mentioned that it should not be in the tab sequence (probably)

[ZoeBijl]

From @jnurthen on April 25, 2016 18:27

What does "Provide a label for the combobox by referencing the text field in the combobox. You can use an aria-label to associate this label with the combobox or you may use the HTML element and its for attribute to reference the text field." mean.... needs changing or clarifying.

[ZoeBijl]

From @carmacleod on April 25, 2016 18:46

Example 5 for combobox in ARIA 1.1 shows the aria-label case, and a similar example with Tag would work for "the HTML element and its for attribute" case.