Accessibility/IAccessible2/TextAttributes

From The Linux Foundation

Text Attributes

General Information

Referenced Specifications

CSS2 values information

Formating

The proper format for the attributes is
"attribute:value;attribute:value,value;"
The format of attribute:value,value; is currently only used for the invalid attribute, e.g. invalid:spelling,grammar;
These characters need to be escaped with a backslash: backslash, colon, comma, equals, and semicolon.
Attribute strings must always end with a semicolon, i.e. there needs to be a comma at the very end of the string of the full set of attribute:value pairs.
Series of attribute values, as shown in the examples above, must not end with a comma.

Object Attributes

Some text attributes are on a paragraph by paragraph basis and are documented in the Object Attributes Specification.

Attributes

The following attributes can change on a character by character basis. They are retrieved via the IAccessibleText::attributes method. If an attribute is not specified and if the table shows that there is a default value, the default value should be assumed.

Name	Values	Default	Comments	Reference
auto-generated	true, false	false	This attribute is used in Firefox but not in IBM Lotus Symphony. Symphony uses the list object attribute for bulleted and numbered lists. In Firefox, this attribute's value is "true" for list bullet/numbering prefix text or layout-inserted text such as via the CSS pseudo styles :before or :after.
background-color	transparent, <color>	transparent	<color> as rgb(n,n,n) where n is 0-255	CSS2 Specification 14.2.1
color	<color>	rgb(0,0,0)	<color> as rgb(n,n,n) where n is 0-255	CSS2 Specification 14.1
font-family	<string>	no default		CSS2 Specification 15.2.2
font-size	<length>	no default	font size in points, e.g. font-size:12pt;	CSS2 Specification 15.2.4
font-style	normal, italic, oblique	normal		CSS2 Specification 15.2.3
font-weight	normal, bold, <integer>	normal (400)	100, 200, 300, 400, 500, 600, 700, 800, 900; normal = 400, bold = 700	CSS2 Specification 15.2.3
invalid	true, false, spelling, grammar	false		WAI-ARIA Specification 5.2.1
language	language in IETF RFC 3066 format	en-US	Examples are en-US and de-DE.	IETF RFC 3066
text-line-through-mode	continuous, skip-white-space	continuous		ODF Specification 15.4.34
text-line-through-style	none, solid, dotted, dash, long-dash, dot-dash, dot-dot-dash, wave	none	Always used if text-line-through-type is specified.	ODF Specification 15.4.7
text-line-through-text	<string>	an empty string	Typical values are / and X, e.g. text-line-through-text:/;	ODF Specification 15.4.10
text-line-through-type	none, single, double	none		ODF Specification 15.4.6
text-line-through-width	auto, normal, bold, thin, dash, medium, thick, <integer>, <length>, <percentage>	auto	<integer> and <length> must be positive.	ODF Specification 15.4.8
text-outline	true, false	false		ODF Specification 15.4.5
text-position	A signed percentage, e.g. -40%, specifying a position above or below the baseline, or the values super or sub. There is an optional second parameter, an unsigned percentage, specifying the size of the font.	0%	An example is: "...;text-position:-40% 50%;..."	ODF Specification 15.4.12
text-shadow	see reference	none	Inherit is not a valid value.	CSS2 Specification 16.3.2
text-underline-mode	continuous, skip-white-space	continuous		ODF Specification 15.4.33
text-underline-style	none, solid, dotted, dash, long-dash, dot-dash, dot-dot-dash, wave	none	Always used if text-underline-type is specified.	ODF Specification 15.4.29
text-underline-type	none, single, double	none		ODF Specification 15.4.28
text-underline-width	auto, normal, bold, thin, dash, medium, thick, <integer>, <length>, <percentage>	auto	<integer> and <length> must be positive.	ODF Specification 15.4.30
writing-mode	lr, rl, tb	lr	tb is top-to-bottom, i.e. text flows from top-to-bottom then left-to-right.	XSL 1.1 Specification 7.29.7

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