can-do-edit-operation? in mode:host-text-mixin

Checks whether a generic edit command would succeed for the editor. This check is especially useful for enabling and disabling menus on demand.

• (send a-mode:host-text-mixin can-do-edit-operation? orig super-call op) -> ???
     orig : ???
     super-call : (??? -> ???)
     op : ??

  If a surrogate is set, calls the surrogate with the arguments it was passed, plus this and a function that calls the super method.

  if a surrogate is not set, calls the super method and returns that result.

  
  

• (send a-mode:host-text-mixin can-do-edit-operation? orig super-call op recursive?) -> ???
     orig : ???
     super-call : (??? -> ???)
     op : ??
     recursive? : ??

  If a surrogate is set, calls the surrogate with the arguments it was passed, plus this and a function that calls the super method.

  if a surrogate is not set, calls the super method and returns that result.