qt a11y: Better handle TEXT_CHANGED event

Trigger the corresponding Qt accessibility
events for deleted and inserted text rather
than sending a QAccessible::TextColumnChanged
event (which looks like a rather arbitrary choice...).

Qt also has a 'QAccessibleTextUpdateEvent'
class that could be used to send a combined
event, but since we get the relevant data
separately in the LO event, using the latter
wouldn't make things easier. And at least
for the AT-SPI case on Linux, Qt sends
separate AT-SPI events via D-Bus anyway. [1]

Unfortunately, qt5/qt6 VCL a11y is not yet functional
enough to e.g. test that the correct AT-SPI events
are actually received when using the the script mentioned in
Change-Id: Ibcae27ecfccf41a909e06d01ce681e4b7b97eb25
(gtk3 a11y: Migrate from deprecated "text-changed" ATK signal).

[1] https://code.qt.io/cgit/qt/qtbase.git/tree/src/gui/accessible/linux/atspiadaptor.cpp#n964

Change-Id: Ia9282382b6d5fd6bffd536dcda2989a6da901e90
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/130356
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>

0 files changed, 0 insertions, 0 deletions