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UAAG2: 10.2 Rewording ideas

From: Jan Richards <jan.richards@utoronto.ca>
Date: Thu, 31 Jan 2008 11:20:46 -0500
Message-ID: <47A1F55E.7000304@utoronto.ca>
To: w3c-wai-ua@w3.org

As per my action item from last week 
(http://lists.w3.org/Archives/Public/w3c-wai-ua/2008JanMar/0022.html):

POTENTIAL NEW WORDING for 10.2:

10.2 Highlight selection, content focus, enabled elements, visited links

Level A

1. Highlighting options are provided for the following classes of 
information:
(a) selection
(b) content focus (except when "recognized" as "content-controlled")
(c) enabled elements (except when "recognized" as "content-controlled")
(d) recently visited links.

2. The highlighting options include:
(a) For text: Platform standard ranges for:
- Text foreground and background colors
- Text size
- Text decoration (e.g., underlining)
- Border thickness
- Border color
(b) For non-text content: Platform standard ranges for:
- Border thickness
- Border color

Level AA

3. The highlighting options include:
(a) For text: Platform standard ranges for:
- Font face
- Font family
(b) For  non-text content: Platform standard ranges for:
- Foreground and background colors (if applicable)
- Line width (if applicable)

Level AAA

N/A




==========================================================
CURRENT WORDING:

10.2 Highlight selection, content focus, enabled elements, visited links 
(P1)

1. Allow global configuration to highlight the following four classes of 
information in each viewport: the selection, content focus, enabled 
elements, and recently visited links.

2. For graphical user interfaces, as part of satisfying provision one of 
this checkpoint, allow at least one configuration where the highlight 
mechanisms for the four classes of information:
- differ from each other, and
- do not rely on rendered text foreground and background colors alone.

3. For graphical user interfaces, as part of satisfying provision one of 
this checkpoint, if a highlight mechanism involves text size, font 
family, rendered text foreground and background colors, or text 
decorations, offer at least the following range of values:
- for text size, the range required by provision three of checkpoint 4.1.
- for font family, the range required by provision three of checkpoint 4.2.
- for text foreground and background colors and decorations, the range 
offered by the conventional utility available in the operating 
environment for users to choose rendered text colors or decorations 
(e.g., the standard font and color dialog box resources supported by the 
operating system). If no such utility is available, the range supported 
by the conventional APIs of the operating environment for specifying 
text colors or drawing text.

4. Highlight enabled elements according to the granularity specified in 
the format. For example, an HTML user agent rendering a PNG image as 
part of a client-side image map is only required to highlight the image 
as a whole, not each enabled region. An SVG user agent rendering an SVG 
image with embedded graphical links is required to highlight each 
(enabled) link that may be rendered independently according to the SVG 
specification.
Received on Thursday, 31 January 2008 16:20:50 GMT

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