This module dispatches these events:
- elementCreated: (id, editor, x1, y1, x2, y2) - activeHandlerChanged: (handler)
Active 아이템을 고정시킨다.
Setup for UI
Add a group.
Add an item to a group.
Collapse a group.
Expand a group.
Get a handler.
Hide ToolboxView
Return whether ToolboxView is visible or not
Select an item.
Show groups only available for a given diagram.
Show ToolboxView
Toggle ToolboxView