EAPI extern int ECORE_WL_EVENT_EFFECT_START;
EAPI extern int ECORE_WL_EVENT_EFFECT_END;
static void _ecore_wl_cb_effect_start
static void _ecore_wl_cb_effect_end
The client need to know the beginning and end of the window effect.
to support this, it is better to add above event and wayland protocol and interface.
Some applications want to start a new effect after the window effect ends(app launcing).
for example, some watch app want to start the animation of changing watch's edje after app launching.