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Don’t terminate display when no view is found (#132)

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* Don’t terminate display when no view is found

Some apps like RetroArch will quit and fork itself to switch
modes (like from the menu to a loaded core). This means that for a
very short period of time we have no view available for Wayland. Right
now, Cage doesn’t actually exit when it does this terminate, so you
get this kind of zombie child process that is running but not showing
anything on the screen because there is no compositor.

The solution I have here is to just keep Cage’s Wayland server running
to avoid this issue. I’m open to other idea, but this seems sane to
me. Perhaps an alternative is to check if the process is still alive
when this happens, if not then we can do the quitting behavior. In
addition, we could make this an option if some users don’t want this
behavior.

* Remove "ever_been_mapped" from cg_wayland_view
This commit is contained in:
Matthew Bauer 2020-03-16 15:32:24 -04:00 • committed by GitHub
parent fc5564645e
commit 5d7ff9e64d
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3 changed files with 0 additions and 28 deletions
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12
view.c
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@ -259,14 +259,6 @@ void
view_destroy(struct cg_view *view)
{
struct cg_server *server = view->server;
bool ever_been_mapped = true;
#if CAGE_HAS_XWAYLAND
if (view->type == CAGE_XWAYLAND_VIEW) {
struct cg_xwayland_view *xwayland_view = xwayland_view_from_view(view);
ever_been_mapped = xwayland_view->ever_been_mapped;
}
#endif
if (view->wlr_surface != NULL) {
view_unmap(view);
@ -279,10 +271,6 @@ view_destroy(struct cg_view *view)
if (!empty) {
struct cg_view *prev = wl_container_of(server->views.next, prev, link);
seat_set_focus(server->seat, prev);
} else if (ever_been_mapped) {
/* The list is empty and the last view has been
mapped, so we can safely exit. */
wl_display_terminate(server->wl_display);
}
}