code/__DEFINES/dcs/signals.dm 
| COMSIG_COMPONENT_ADDED | when a component is added to a datum: (/datum/component) |
|---|---|
| COMSIG_COMPONENT_REMOVING | before a component is removed from a datum because of ClearFromParent: (/datum/component) |
| COMSIG_PARENT_PREQDELETED | before a datum's Destroy() is called: (force), returning a nonzero value will cancel the qdel operation you should only be using this if you want to block deletion that's the only functional difference between it and COMSIG_PARENT_QDELETING, outside setting QDELETING to detect |
| COMSIG_PARENT_QDELETING | just before a datum's Destroy() is called: (force), at this point none of the other components chose to interrupt qdel and Destroy will be called |
| COMSIG_PARENT_QDELETED | after a datum's Destroy() is called: (force, qdel_hint), at this point none of the other components chose to interrupt qdel and Destroy has been called |
| COMSIG_TOPIC | generic topic handler (usr, href_list) |
| COMSIG_VV_TOPIC | handler for vv_do_topic (usr, href_list) |
| COMSIG_UI_ACT | from datum ui_act (usr, action) |
| COMSIG_ELEMENT_ATTACH | fires on the target datum when an element is attached to it (/datum/element) |
| COMSIG_ELEMENT_DETACH | fires on the target datum when an element is attached to it (/datum/element) |
| COMSIG_STORAGE_INSERTED | Component Specific Signals |
Define Details
COMSIG_COMPONENT_ADDED
when a component is added to a datum: (/datum/component)
COMSIG_COMPONENT_REMOVING
before a component is removed from a datum because of ClearFromParent: (/datum/component)
COMSIG_ELEMENT_ATTACH
fires on the target datum when an element is attached to it (/datum/element)
COMSIG_ELEMENT_DETACH
fires on the target datum when an element is attached to it (/datum/element)
COMSIG_PARENT_PREQDELETED
before a datum's Destroy() is called: (force), returning a nonzero value will cancel the qdel operation you should only be using this if you want to block deletion that's the only functional difference between it and COMSIG_PARENT_QDELETING, outside setting QDELETING to detect
COMSIG_PARENT_QDELETED
after a datum's Destroy() is called: (force, qdel_hint), at this point none of the other components chose to interrupt qdel and Destroy has been called
COMSIG_PARENT_QDELETING
just before a datum's Destroy() is called: (force), at this point none of the other components chose to interrupt qdel and Destroy will be called
COMSIG_STORAGE_INSERTED
Component Specific Signals
COMSIG_TOPIC
generic topic handler (usr, href_list)
COMSIG_UI_ACT
from datum ui_act (usr, action)
COMSIG_VV_TOPIC
handler for vv_do_topic (usr, href_list)