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evdev: Ignore non seat wide pointer button events

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Pointer button events will be received from a device where a button has
been pressed, even though an equivalent button has been pressed (same
button code) on a device connected to the same seat. notify_button()
expects to only be called as if there was only one pointer device
associated with the given seat, so to achieve this, ignore every event
where forwarding it would result in multiple 'pressed' or 'released'
notifications.

https://bugzilla.gnome.org/show_bug.cgi?id=743615
This commit is contained in:
Jonas Ådahl 2015-01-28 12:12:48 +08:00
parent 32ce45aa89
commit e9e9578dca
1 changed files with 11 additions and 1 deletions
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12
clutter/evdev/clutter-device-manager-evdev.c
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@ -1185,7 +1185,7 @@ process_device_event (ClutterDeviceManagerEvdev *manager_evdev,
case LIBINPUT_EVENT_POINTER_BUTTON:
{
guint32 time, button, button_state;
guint32 time, button, button_state, seat_button_count;
struct libinput_event_pointer *button_event =
libinput_event_get_pointer_event (event);
device = libinput_device_get_user_data (libinput_device);
@ -1194,6 +1194,16 @@ process_device_event (ClutterDeviceManagerEvdev *manager_evdev,
button = libinput_event_pointer_get_button (button_event);
button_state = libinput_event_pointer_get_button_state (button_event) ==
LIBINPUT_BUTTON_STATE_PRESSED;
seat_button_count =
libinput_event_pointer_get_seat_button_count (button_event);
/* Ignore button events that are not seat wide state changes. */
if ((button_state == LIBINPUT_BUTTON_STATE_PRESSED &&
seat_button_count != 1) ||
(button_state == LIBINPUT_BUTTON_STATE_RELEASED &&
seat_button_count != 0))
break;
notify_button (device, time, button, button_state);
break;