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Don't compress motion events for different devices

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A switch of device may be significant for an application, so don't
compress motion events if they are for different devices. This simple
handling isn't sufficient if we have competing event streams from
two different pointer events, but we don't expect this case to be
common.
This commit is contained in:
Owen W. Taylor 2013-02-14 14:51:33 -05:00
parent ff935c5738
commit e2705544ab
1 changed files with 6 additions and 0 deletions
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6
gdk/gdkevents.c
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@ -268,6 +268,7 @@ _gdk_event_queue_handle_motion_compression (GdkDisplay *display)
GList *tmp_list;
GList *pending_motions = NULL;
GdkWindow *pending_motion_window = NULL;
GdkDevice *pending_motion_device = NULL;
/* If the last N events in the event queue are motion notify
* events for the same window, drop all but the last */
@ -288,7 +289,12 @@ _gdk_event_queue_handle_motion_compression (GdkDisplay *display)
pending_motion_window != event->event.motion.window)
break;
if (pending_motion_device != NULL &&
pending_motion_device != event->event.motion.device)
break;
pending_motion_window = event->event.motion.window;
pending_motion_device = event->event.motion.device;
pending_motions = tmp_list;
tmp_list = tmp_list->prev;