1901461 - [UIA] Support text attributes

Status: RESOLVED FIXED

(Core :: Disability Access APIs, task)

Description

[James Teh [:Jamie]]

This will allow for exposing formatting information, headings, spelling errors, etc. We need to support ITextRangeProvider::GetAttributeValue.

Comment 1

[Nathan LaPré]

We should first add support for TextUnit_Format, so we have an established way to navigate text runs.

Comment 2

[Nathan LaPré]

Attachment: Bug 1901461 - Part 1: Implement ITextRangeProvider::GetAttributeValue, r?jamie

This revision implements GetAttributeValue on UiaTextRange. It does not add
support for every UIA text attribute, but does implement eight and lays the
groundwork to implement the rest. To keep GetAttributeValue straightforward, it
mainly contains a switch statement that dispatches a templated GetAttribute
function which makes use of an templated AttributeTraits struct to determine
whether the text attribute is uniform throughout the text range. Finally, this
revision adds a bunch of tests for this new functionality.

Comment 3

[Nathan LaPré]

Attachment: Bug 1901461 - Part 2: Implement UIA_AnnotationTypesAttributeId, r?jamie

This revision implements the annotation types attribute and a few of its
associated annotation types. Namely, implemented here are SpellingError,
GrammarError, DataValidationError, and Highlighted. This revision also
implements tests for this new functionality.

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/1ae684a5469e
Part 1: Implement ITextRangeProvider::GetAttributeValue, r=Jamie
https://hg.mozilla.org/integration/autoland/rev/e8c3edcb4cc5
Part 2: Implement UIA_AnnotationTypesAttributeId, r=Jamie

Comment 5

[Nathan LaPré]

Marking leave-open so we can use this bug to track one more forthcoming patch which will implement UIA_StyleIdAttributeId (heading, block quote, and so on).

Comment 6

[Cristina Horotan [:chorotan]]

https://hg.mozilla.org/mozilla-central/rev/1ae684a5469e
https://hg.mozilla.org/mozilla-central/rev/e8c3edcb4cc5

Comment 7

[Nathan LaPré]

Attachment: Bug 1901461: Implement UIA_StyleIdAttributeId, r?jamie

This revision implements supportable styles covered by
UIA_StyleIdAttributeId. Namely, this includes the heading levels,
quotes, and emphasis. These are implemented with Accessible role checks.
To get the levels, this revision makes GetLevel a public function. It
also adds constant definitions for MinGW builds. Finally, this revision
adds tests to the existing GetAttributeValue tests.

Comment 8

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/81eb8aff9982
Implement UIA_StyleIdAttributeId, r=Jamie

Comment 9

[amarc]

https://hg.mozilla.org/mozilla-central/rev/81eb8aff9982