[a11y] 9.4.1.3 - Status messages programatically available

[tbsbdr]

• Context: The Web UI should be accessible according to the WCAG2.1 /BITV 2.0 guidelines. The number in the title relates to the test-steps: https://www.bitvtest.de/bitv_test/das_testverfahren_im_detail/pruefschritte.html
• "Status" relates to the evaluation scheme https://www.bitvtest.de/bitv_test/das_testverfahren_im_detail/verfahren.html#c1262
• "a11y" is short for accessibility

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General notes

All pages / Popups "Apps-Menü" and "Benutzereinstellungen" (probably also other similar Popups affected): After activating the button the whole container of the displayed popup will be read out by screenreaders. (On user settings it is the 3 links). Better solution would be to let the screenreader read out only „erweitert“ after activating the app-menue. The aria-describedby-Attribute which triggers the output should be removed. Note: the issue also appears with Firefox. Edge doesn’t read out the content.

Status: partly fulfilled

[lookacat]

Unclear if aria-describedby needs to be removed from every OcDrop instance, needs further clarification.

[kulmann]

Went through all usages of OcDrop, IMO the aria-describedby in the way we use it can be removed entirely, because the focus order dives down into the respective OcDrop.

[kulmann]

Thinking about this exactly three years later together with @pascalwengerter - let's remove the the aria-describedby and make sure that all icon-only-buttons which toggle an OcDrop have a proper aria-label and an aria-hidden tooltip.