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wayland: Force the grab cursor while a grab is active

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When a cursor is specified in gdk_seat_grab(), the cursor is reverted as
soon as the pointer enters or leaves another window.

To avoid this issue, store the grab cursor separately, so we force-apply
it in ::set_window_cursor(). Also, unset early the seat info from the
window on gdk_seat_ungrab(), so the next time switch_to_pointer_grab()
happens we end up picking the cursor set for the window underneath the
pointer window.

Based on a patch by Olivier Fourdan <ofourdan@redhat.com>.

https://bugzilla.gnome.org/show_bug.cgi?id=760213
This commit is contained in:
Carlos Garnacho 2016-01-08 21:45:03 +01:00
parent 23b629e27c
commit ad0fc8ae7e
1 changed files with 15 additions and 7 deletions
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22
gdk/wayland/gdkdevice-wayland.c
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@ -116,6 +116,8 @@ struct _GdkWaylandSeat
/* Some tracking on gesture events */
guint gesture_n_fingers;
gdouble gesture_scale;
GdkCursor *grab_cursor;
};
G_DEFINE_TYPE (GdkWaylandSeat, gdk_wayland_seat, GDK_TYPE_SEAT)
@ -290,6 +292,9 @@ gdk_wayland_device_set_window_cursor (GdkDevice *device,
if (device == wd->touch_master)
return;
if (wd->pointer_grab_window)
cursor = wd->grab_cursor;
/* Setting the cursor to NULL means that we should use
* the default cursor
*/
@ -2458,6 +2463,7 @@ gdk_wayland_seat_grab (GdkSeat *seat,
evtime,
FALSE);
g_set_object (&wayland_seat->grab_cursor, cursor);
g_set_object (&wayland_seat->cursor, cursor);
gdk_wayland_device_update_window_cursor (wayland_seat);
}
@ -2514,6 +2520,15 @@ gdk_wayland_seat_ungrab (GdkSeat *seat)
GdkDisplay *display = gdk_seat_get_display (seat);;
GdkDeviceGrabInfo *grab;
g_clear_object (&wayland_seat->grab_cursor);
if (wayland_seat->pointer_grab_window)
{
_gdk_wayland_window_set_grab_seat (wayland_seat->pointer_grab_window,
NULL);
wayland_seat->pointer_grab_window = NULL;
}
if (wayland_seat->master_pointer)
{
GdkWindow *focus, *prev_focus = NULL;
@ -2551,13 +2566,6 @@ gdk_wayland_seat_ungrab (GdkSeat *seat)
if (grab)
grab->serial_end = grab->serial_start;
}
if (wayland_seat->pointer_grab_window)
{
_gdk_wayland_window_set_grab_seat (wayland_seat->pointer_grab_window,
NULL);
wayland_seat->pointer_grab_window = NULL;
}
}
static GdkDevice *