Checks whether there is a selection in an active Design view. If there is a selection, fitAll() and fitWidth() can be called.
Returns a string array for the Design view or Live view size menu, which include preset user-defined sizes and Media Queries with sizing info.
Used to select an option from the list of menu options obtained from dom.getViewSizeMenuItems().
Used to enable or disable View size menu options obtained from dom.getViewSizeMenuItems().