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| author | Morten Sørvig <morten.sorvig@qt.io> | 2025-04-02 12:07:35 +0200 |
|---|---|---|
| committer | Morten Johan Sørvig <morten.sorvig@qt.io> | 2025-05-01 02:44:18 +0000 |
| commit | 51c7503568174669b48a8f8ddbe49eebb127a128 (patch) | |
| tree | 50d0796b193267f88cda05a3c87b8aa547126357 /src/plugins/sqldrivers/mysql/qsql_mysql.cpp | |
| parent | e57fff63419867d59b6067fc1a5a3495678708dc (diff) | |
a11y: reduce the number of activation observer calls
Reduce the number of activation calls by calling the
observer callbacks on active state change only, instead
of on each setActive() call.
The accessibility backends typically make setActive()
calls on each accessibility event, which can result
in a large number (100k+) of activation calls if there
are many (hundreds) of installed activation observers.
This change keeps the following behavior compatibilities:
- Each observer is called at least once on setActive(),
even if the active state has not changed since it was
installed.
- Going from active to inactive is supported, though
Qt currently does not appear to do this.
As a drive-by refactor, make it possible to activate
accessibility by calling QAccessible::setActive(), by
making it call QPlatformAccessible::setActive().
Change-Id: Iee17160f153b825be032b441923e3529c2f00242
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Diffstat (limited to 'src/plugins/sqldrivers/mysql/qsql_mysql.cpp')
0 files changed, 0 insertions, 0 deletions