Handle a keydown from anywhere; returns true when an action ran.
The effective binding for an action.
Translate a keydown into the binding grammar (Mod-Shift-l), or null for a bare modifier.
Every action's printed binding, keyed by name (see ShortcutLabels).
Show the shortcuts dialog: view, change and reset every binding.
Optionaldocument: DocumentRebind (or unbind with null). Another action holding the keys loses them.
Display text for an action's binding, e.g. beside a menu entry.