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backend: Reset current device id when current device removed

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Bluetooth mouse usually goes in sleep state after a timeout, when that
happen the mouse is disconnected and on_device_removed function is
called. Before the patch if a touch device is available the
on_device_removed function hide the cursor. The issue is that the cursor
does not reappear once the bluetooth mouse is reconnected because
MetaBackend::current_device_id is not invalidated when on_device_removed
was called.

The patch set MetaBackend::current_device_id to 0 if the current device
is removed. This will make update_last_device to be triggered as soon as
another input device is used or the bluetooth mouse reconnect, as
consequence that the cursor reappear. The id 0 is never given to devices
and can safely used as undefine id.

https://bugzilla.gnome.org/show_bug.cgi?id=761067
This commit is contained in:
Benoit Gschwind 2017-10-25 22:13:30 +02:00 committed by Jonas Ådahl
parent 8d7f425de4
commit 74e88dd18f
1 changed files with 2 additions and 0 deletions
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2
src/backends/meta-backend.c
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@ -337,6 +337,8 @@ on_device_removed (ClutterDeviceManager *device_manager,
gboolean has_touchscreen, has_pointing_device;
ClutterInputDeviceType device_type;
priv->current_device_id = 0;
device_type = clutter_input_device_get_device_type (device);
has_touchscreen = check_has_slave_touchscreen (device_manager);