This behaviour is normally invoked just before the popup-menu is mapped
on the display. This is done automatically for popups associated with
menu_bars or managed by a popup_gesture (i.e.
all normal ways to manage a popup).
Update first invokes popup<->update_message,
providing its argument as @arg1.
This message is supposed to update the available entries of the popup;
not the activation status of the individual entries. Next, popup->update
invokes menu->update,
which takes care of activating the appropriate entries.
- See also
- - menu_item
-condition
- menu->update
- popup-update_message
- popup_gesture->initiate
