小编KO1*_*O12的帖子

我有以下自定义标记/指令:

<tile class="ng-scope gridster-item" tilevalue="1" gridster-item="tile" row="0" col = "0" ng-repeat="tile in selectedTiles"> </tile>

我创建了一个键盘控件,其目标是关注selectedTiles array每个键盘事件中的每个tile("tile"指令)(shift + right arrow).

// Keyboard Tile Navigation

        //Starting pos
        var curIndex = -1

        //keyboard control
        $(document).keydown(function(event) {

        if (event.shiftKey && event.which === 39) {
                console.log("right");
                focusNext();
                }
           });

        function focusNext() {
            focusTile(+1);
        }

        function focusTile(delta) {

            var visibleTiles = $scope.selectedTiles;
            var elem = $("[gridster-item='tile']");

            curIndex = curIndex + delta;
            el = elem[curIndex];

        el.attr('tabindex', -1).focus();    
        el.css("border-color", "yellow");

        }

当我得到变量的控制台日志时,elem我得到了dom中出现的tile数组(如预期的那样).问题是当我尝试添加一个 …