Interface Hook<T>

Add registers a new handler to the hook by appending it to the existing queue.

Returns an autogenerated hook id that could be used later to remove the hook with Hook.Remove(id).

PreAdd registers a new handler to the hook by prepending it to the existing queue.

Returns an autogenerated hook id that could be used later to remove the hook with Hook.Remove(id).

Remove removes a single hook handler by its id.

RemoveAll removes all registered handlers.

Trigger executes all registered hook handlers one by one with the specified data as an argument.

Optionally, this method allows also to register additional one off handlers that will be temporary appended to the handlers queue.

The execution stops when:

• hook.StopPropagation is returned in one of the handlers
• any non-nil error is returned in one of the handlers