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nixos/gnome/at-spi2-core: force GTK_A11Y=none when disabled

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GTK 4 applications use accessibility bus directly
and will try to connect to it every time a widget is created:
https://gitlab.gnome.org/GNOME/gtk/-/issues/4831

This will make GTK 4 apps (e.g. newly ported Nautilus) grind
to a halt on systems that do not have AT-SPI service installed.

Let’s explicitly disable accessibility support with an environment
variable when the AT-SPI service is not enabled to avoid that.
Just like we do for ATK-based applications with `NO_AT_BRIDGE`.

Fixes: https://github.com/NixOS/nixpkgs/issues/197188
This commit is contained in:
Andy Chun @noneucat 2022-07-18 08:46:32 -07:00 committed by Jan Tojnar
parent 52b2ac8ae1
commit 2fedbbab9c
1 changed files with 4 additions and 1 deletions
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5
nixos/modules/services/desktops/gnome/at-spi2-core.nix
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@ -51,7 +51,10 @@ with lib;
})
(mkIf (!config.services.gnome.at-spi2-core.enable) {
environment.variables.NO_AT_BRIDGE = "1";
environment.variables = {
NO_AT_BRIDGE = "1";
GTK_A11Y = "none";
};
})
];
}