RE: Concerns and unaddressed issues for the HTML 5 specifications

Can you please provide an updated version of this that links each point to outstanding HTML WG bugs and issue numbers?


Paul Cotton, Microsoft Canada
17 Eleanor Drive, Ottawa, Ontario K2E 6A3
Tel: (425) 705-9596 Fax: (425) 936-7329

From: [] On Behalf Of Richard Schwerdtfeger
Sent: Wednesday, May 18, 2011 6:42 PM
Subject: Concerns and unaddressed issues for the HTML 5 specifications

We were given a to-do to provide this to the PF group.

There are a number of concerns and unaddressed issues that need to be addressed that need to be included as notes in the specification:

For the Canvas 2D API spec:

1. This API does not yet provide the ability to supply an assistive technology with the bounds of a drawing object on the physical canvas bound to canvas elements in the canvas subtree. To do this properly the specification needs to provide clickable canvas regions, representing the canvas element in the subtree. This would mean the inclusion of hit testing capability in canvas that would bind pointing device events retrieved from the canvas drawing surface to the canvas subtree.

This could appear in the "status of this document" section.

2. drawFocusRing needs to be separated into separate functions to separate the concept of focus rings and the drawing of visual points of regard for managed children. Also, a defect exists whereby an author can choose to use canDrawCustom when no system setting is provided for how the ring should be drawn and author will be allowed to draw a focus ring without driving a magnifier. (Note: this issue was raised with the chairs, the additional information was provided but not discussed)

3. A text baseline needs to be added to the textMetrics. (Note: the chairs asked for more clarification on what textMetrics were provided, the additional information was provided but not discussed). The revised text is provided in the updated change proposal.

For the WAI-ARIA section 3.2.7 in HTML 5:

A section needs to include text on the syntactic processing of ARIA role, states, properties. (Note: Michael Cooper has an action item to provide this text. All the text but the role attribute was created at the HTML Accessibility Face to Face in San Diego). This was an action item for entering CR and a defect was opened in HTML 5.

Rich Schwerdtfeger
CTO Accessibility Software Group

Received on Thursday, 19 May 2011 09:47:31 UTC