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window: Ignore requests to be placed on non-existent workspaces

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When an X11 window requests an initial workspace, we currently trust
it that the workspace actually exists. However dynamic workspaces
make this easy to get wrong for applications: They make it likely
for the number of workspaces to change between application starts,
and if the app blindly applies its saved state on startup, it will
trigger an assertion.

Make sure that we pass valid parameters to set_workspace_state(),
and simply let the workspace assignment fall through to the default
handling otherwise.

https://gitlab.gnome.org/GNOME/mutter/issues/1029
This commit is contained in:
Florian Müllner 2020-02-03 22:58:38 +01:00 committed by Carlos Garnacho
parent b91d66bf98
commit aa0aa89a1e
1 changed files with 4 additions and 1 deletions
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5
src/core/window.c
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@ -1288,7 +1288,10 @@ _meta_window_shared_new (MetaDisplay *display,
window->initial_workspace);
}
set_workspace_state (window, on_all_workspaces, workspace);
/* Ignore when a window requests to be placed on a non-existent workspace
*/
if (on_all_workspaces || workspace != NULL)
set_workspace_state (window, on_all_workspaces, workspace);
}
/* override-redirect windows are subtly different from other windows