Accessibility/Attributes
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Proposed AT-SPI Attribute Support
| Attribute name | Attribute description | Document attribute | Object attribute | Text attribute | Default text attribute |
|---|---|---|---|---|---|
| W3C-doctype | Equivalent to what is specified in the <!DOCTYPE> header | Yes | |||
| DocURL | The location of the current document, including possibly a named anchor jumped to, for example http://www.foo.org#maincontent | Yes | |||
| MimeType | The mime or media type, such as text/plain, text/html, image/jpeg, image/svg+xml, application/xml+xhtml and application/vnd.mozilla.xul+xml. | Yes | |||
| id | A persistant ID for this object, useful for scripting | Yes | |||
| tag | The markup tag used to create this element | Yes | |||
| xml-roles | The exact space-delimited ARIA role string. When a dynamic content accessibility role string is used, it is exposed here. This may provide more information than the AT-SPI role, which is best-fit. The xml-roles attribute may also include any landmark roles used, or a more specific custom role (e.g. buddylist in addition to listbox). | Yes | |||
| layout-guess | "true" when Gecko's heuristic determines that it is a table that is probably used for layout, not for a data table. Value not set means it is probably a data table. |
Only on ROLE_TABLE | |||
| level | The heading level | Only on ROLE_HEADING currently | |||
| language | What language is this text in, e.g. en-US | Yes | Yes | Yes | |
| static | "true" for list bullet/numbering text or layout-inserted text (such as via CSS pseudo styles :before or :after) | Yes | Yes | ||
| misspelled | "true" if it is marked by the inline spell checker for being incorrectly spelled (Note: in most cases a special underlining style will accompany this mark, and the underlining+style should also be exposed as a decoration attribute) | Yes | |||
| border | not sure how best to expose these properties, or whether to (same with outline CSS property) | ||||
| background-color | Background color as u, u, u | Yes | Yes | Yes | |
| color | Foreground color as u, u, u | Yes | Yes | Yes | |
| direction | rtl or ltr for bidi text | Yes | Yes | ||
| font-family | The computed font name | Yes | Yes | ||
| margin-left | In pixels | Yes | |||
| margin-right | In pixels | Yes | |||
| font-size | Font size in pixels | Yes | Yes | ||
| font-style | normal/italic/oblique | Yes | Yes | ||
| font-weight | The computed font weight, as a number | Yes | Yes | ||
| text-align | left/center/right/justify | Yes | Yes | ||
| text-underline-style | none/solid | Yes | Yes (empty implies none) | ||
| text-line-through-style | none/solid | Yes | Yes (empty implies none) | ||
| z-index | a number which indicates how low/high an element is | Yes |