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backend: Update cursor visibility on device added

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Not calling libinput dispatch in the backend constructor defeats the
logic in post init as the device added events have not been processed
yet.

So instead of trying to guess the cursor initial visibility, simply
update it along when devices get added.

Additional benefit, we do not need to walk the all device list looking
for touchscreens anymore, we just need to check the device being added
since the current logic is to hide the cursor as soon as a touchscreen
is found.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1534
This commit is contained in:
Olivier Fourdan 2020-10-30 15:44:52 +01:00
parent c618b8a0eb
commit 9b88172982
1 changed files with 14 additions and 33 deletions
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47
src/backends/meta-backend.c
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@ -350,16 +350,6 @@ meta_backend_monitor_device (MetaBackend *backend,
create_device_monitor (backend, device);
}
static void
on_device_added (ClutterSeat *seat,
ClutterInputDevice *device,
gpointer user_data)
{
MetaBackend *backend = META_BACKEND (user_data);
create_device_monitor (backend, device);
}
static inline gboolean
device_is_physical_touchscreen (ClutterInputDevice *device)
{
@ -394,6 +384,20 @@ check_has_pointing_device (ClutterSeat *seat)
return found;
}
static void
on_device_added (ClutterSeat *seat,
ClutterInputDevice *device,
gpointer user_data)
{
MetaBackend *backend = META_BACKEND (user_data);
MetaBackendPrivate *priv = meta_backend_get_instance_private (backend);
create_device_monitor (backend, device);
if (device_is_physical_touchscreen (device))
meta_cursor_tracker_set_pointer_visible (priv->cursor_tracker, FALSE);
}
static void
on_device_removed (ClutterSeat *seat,
ClutterInputDevice *device,
@ -457,27 +461,6 @@ create_device_monitors (MetaBackend *backend,
g_list_free (devices);
}
static void
set_initial_pointer_visibility (MetaBackend *backend,
ClutterSeat *seat)
{
MetaBackendPrivate *priv = meta_backend_get_instance_private (backend);
GList *l, *devices;
gboolean has_touchscreen = FALSE;
devices = clutter_seat_list_devices (seat);
for (l = devices; l; l = l->next)
{
ClutterInputDevice *device = l->data;
has_touchscreen |= device_is_physical_touchscreen (device);
}
g_list_free (devices);
meta_cursor_tracker_set_pointer_visible (priv->cursor_tracker,
!has_touchscreen);
}
static MetaInputSettings *
meta_backend_create_input_settings (MetaBackend *backend)
{
@ -512,8 +495,6 @@ meta_backend_real_post_init (MetaBackend *backend)
G_CALLBACK (on_device_removed), backend,
G_CONNECT_AFTER);
set_initial_pointer_visibility (backend, seat);
priv->input_settings = meta_backend_create_input_settings (backend);
if (priv->input_settings)