lib/dragdrop/DragDropDiv.js
// return true for a valid move
return true for a valid move
return true for a valid move
checkFirstMove(e) {
        let state = new DragManager.DragState(e, this, true);
        if (!state.moved()) {
            return false;
        }
        return this.executeFirstMove(state);
    }
checkFirstMove ( e ) { let state = new DragManager . DragState ( e , this , true ) ; if ( ! state . moved ( ) ) { return false ; } return this . executeFirstMove ( state ) ; }
return true for a valid move
return true for a valid move
// not a move