Implement the new `QAccessibleAttributesInterface`
just added upstream to Qt in qtbase commit [1]
commit fb5ffe862688a87cfc136113e067bcba0c49a7ae
Author: Michael Weghorn <m.weghorn@posteo.de>
AuthorDate: Fri Nov 10 18:25:02 2023 +0100
Commit: Volker Hilsheimer <volker.hilsheimer@qt.io>
CommitDate: Thu Feb 29 04:44:22 2024 +0000
a11y: Add new QAccessibleAttributesInterface
, see also QTBUG-119057. [2]
This API is available with Qt >= 6.8.
That interface makes it possible to report
object attributes that are bridged to the platform a11y
layers.
Use it to bridge the attributes retrieved from
the `XAccessibleExtendedAttributes` UNO interface.
Together with the pending upstream qtbase change that
implements the AT-SPI bridge for Linux [3], the "level"
AT-SPI object attribute for headings in Writer
is correctly reported to AT-SPI, making the
Orca screen reader announce "Heading level N" as expected.
For now, map not explicitly handled attributes
as key-value pairs to Qt via the special
`QAccessible::Attribute::Custom` attribute,
which causes them to be mapped to AT-SPI unchanged, and
can e.g. be used for testing the tdf#158030 scenario.
For common attributes - like those specified in the
Core Accessibility API Mappings specification [4] -
suggesting to add new enum values to the
`QAccessible::Attribute` enum to upstream Qt
and using those instead should be considered for the future.
Related commit for gtk4:
commit 3aca2d9776
Author: Michael Weghorn <m.weghorn@posteo.de>
Date: Thu Nov 9 15:31:57 2023 +0100
gtk4 a11y: Handle the "level" object attribute
[1] https://code.qt.io/cgit/qt/qtbase.git/commit/?id=fb5ffe862688a87cfc136113e067bcba0c49a7ae
[2] https://bugreports.qt.io/browse/QTBUG-119057
[3] https://codereview.qt-project.org/c/qt/qtbase/+/517526
[4] https://www.w3.org/TR/core-aam-1.2/
Change-Id: Ibe357bfd72bb2dc6e44ad941e62737d5cac21e1c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/159309
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
1b6963cda0