[HTML5 CR 2012-12-07] dialog element

Hello,

looking at my HTML5 tests, it appeared, that for example Google Chrome 26
has some interpretation for the visual presentation of a dialog element:
a) If the attribute open is not present, the content of the element is not 
displayed and there is no indication, that something is present, therefore
not accessible for users.
b) If the attribute open is present, the content with opaque background and
surrounded by a mourning edge covers other content, following the dialog
element, therefore this following content is not accessible for the user.

1. Is there any option to use this element without accessibility issues for 
visual presentation?
2. Is there a declarative method (no scripting, this can be not available
or switched off by the user) to open and to close such an element - 
respectively what is the intended behaviour, if no script interpretation is
available at presentation time, to make all content accessible?
3. Is it intended, that there is no indication of the presence of the content
of the element, if the open attribute is not present?
4. Is there any relation to earlier HTML5 working drafts, that this element
should be used to markup dialogues?
4.a) If yes, why are mechanisms missing to indicate speakers, stage 
directions, behaviour of actors etc?
4.b) If not, why is the same element name used for other (what?) purposes -
wouldn't it be better to use another name to avoid confusion?


Best wishes

Olaf

Received on Thursday, 2 May 2013 11:43:37 UTC