Re: [orca-list] Accessibility in Plasmas new notification system, QAccessible doesnt provide "NOTIFICATION"



Howdy Joanie,

i found it in this file:
https://github.com/qt/qtbase/blob/1269f9cd16485d0081f5027ffec914bcb696f658/src/platformsupport/linuxaccessibility/bridge.cpp

cheers chrys
Zitat von Joanmarie Diggs <jdiggs igalia com>:

Hey Chrys, Frederik.

Related question: Where are the mappings from QAccessible::Role to
ATK/AT-SPI2 roles? For instance, there's no such role as HelpBalloon in
ATK/AT-SPI2. So if that gets used, what is exposed to Orca for the role?

--joanie

On 6/6/19 9:52 AM, chrys linux-a11y org wrote:
Howdy Joanie, Howdy Frederik,

this is an biggier issue then initial thought. There is currently no
notification role for QT.
would it be possible to add an temp workaround? maybe one of those?
- QAccessible::ProgressBar
- QAccessible::PopupMenu
- QAccessible::LayeredPane
- QAccessible::HelpBalloon
- QAccessible::AlertMessage

https://doc.qt.io/qt-5/qaccessible.html#Role-enum
until we get the right role in place for next QT version? (then the
workaround could be removed?)

@frederik: would you add the role "ATK:NOTIFICATION" to QT for me? we
want to implement it into the new notification system.
Is there an way to add an "generic API" we could use for add custom
roles to the QAccessible enum? so we could use this until a bug is fixed
or for very rare or custom usecases?

cheers chrys

Zitat von chrys linux-a11y org:

Howdy Joanie,

oh this is pritty awsome! thanks for this information.
I will forward it to plasma-devel and kbroulik. fore sure they will
like your answer!

mercy,

cheers chrys
Zitat von Joanmarie Diggs <jdiggs igalia com>:

Hey Chrys.

Regarding notifications, it should be pretty simple:

1. Give it ROLE_NOTIFICATION
2. Be sure it emits an object:state-changed:showing event
3. Be sure the displayed text is exposed via the accessible text
  interface, either on the notification itself or in the accessible
  children of the notification

In theory, that should do it. Orca's looking for notifications that
announce their appearance because, like you stated, they don't get
focus.

Hope this helps. BTW, I'm not subscribed to plasma-devel, so I'm not
sure if my CCing them will be sufficient. If it's not, and if they need
what I've stated above, please forward it to them.

Thanks again for all your work on this!
--joanie

On 6/6/19 7:45 AM, chrys linux-a11y org wrote:

Howdy Joanie,

I just give an talk to kbroulik ( the creator of Plasmas new awsome
notification system).
see here:
https://blog.broulik.de/2019/05/next-generation-plasma-notifications/

He told me that accessibility is not yet implemented. But I see
notifications are an very importaint part of an desktop system. Problem
for make it accessible is, that it currently doesnt get the focus at
any
time.
Is there a best practice to implement this?
how does gnome do this? how is orca awaiting for incomming
notifications? do you know how we can make this happen?
Sorry for bother you with so basic stuff but you are the only one
person
I know what can answer those issues properly.

maybe a nice side notice for you (and others). We currently work on an
accessibility HIG for KDE.
https://hig.kde.org/accessibility/index.html
Still a WIP, but if someone wants to add some good content just
contact me.
It should contain:
- Keyboard navigation
- Focus handling
- Set A11y Lables/ Descriptions/ roles
- howto test for good a11y

cheers chrys

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