HasContentList

HopContentsToTrash SearchForObject Swallow

Attributes

List List

Fields

Define Class HasContentList;
    mixes in with Viewable, CanBeSearched;

    field contentList: StackOfCards;
        // used by List attribute

    overrides List;
        // returns value of contentList field;
    overrides SearchForObject;
        // offers stack scene of list of self as a place to be searched, then calls inherited method 
    overrides SetList;
        // stores new value in contentList field;
    overrides Swallow;
        // accepts mini cards that implement the class of content list's proto card;
        // accepts all mini cards if proto card of content list is nilObject;
        // handles in box and out box stacks as special cases (card must be a ready-to-send Telecard);
        // also handles special case of dropping folder on out box; addressed cards in folder are individually hopped to out box;

    operation HopContentsToTrash();
        // if list contains one item, hops mini-card for it to trash;
        // if list contains more than one item, creates folder full of all items, sets its name
        // to name of self, and hops mini-card for folder to trash
end class;