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evas focus: Do not allow two objects focused by the same seat. 

Summary:
Before focusing an object, the intercept focus callback
is called. This callback may ask Evas to focus another object
instead, so it's necessary to check if the seat in question still
have a focused object event after a efl_canvas_object_seat_focus_del() call.

Reviewers: cedric, bdilly, barbieri, ProhtMeyhet, netstar

Subscribers: cedric, jpeg

Maniphest Tasks: T4864, T4886

Differential Revision: https://phab.enlightenment.org/D4396

Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>
This commit is contained in:
Guilherme Iscaro 2016-11-14 10:24:47 -08:00 committed by Cedric BAIL
parent ee5a1d28f1
commit 883d41f006
1 changed files with 3 additions and 0 deletions
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3
src/lib/evas/canvas/evas_focus.c
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@ -153,6 +153,9 @@ _efl_canvas_object_seat_focus_add(Eo *eo_obj,
if (current_focus)
efl_canvas_object_seat_focus_del(current_focus, seat);
//In case intercept focus callback focused object we should return.
if (_current_focus_get(eo_obj, seat)) goto end;
efl_event_callback_add(seat, EFL_EVENT_DEL, _evas_focus_device_del_cb, obj);
obj->focused_by_seats = eina_list_append(obj->focused_by_seats, seat);