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我有一个 jQuery“自动建议”类型的搜索框。它使用 Href 填充搜索结果列表，以便用户可以单击列表中的项目以转到相关页面。用户还可以使用箭头键滚动列表以进行选择。我现在要做的是允许用户按 Enter 键转到他们选择的 URL。我有 Enter 键工作，但我不确定我应该如何构建列表或从列表中提取 Href 等。或者我应该有第二个隐藏列表，它只包含纯 URL？

这是迄今为止标记为###的相关部分的代码：

<script>

var results_list = '';

function callback(result) {
    results_list.show();
    var items = [];
    $.each(result, function (i, item) {
        items.push("<li><a href='/view/raw/" + item.collection + "/" + item.classname + "/" + item._id + "'>" + item.Title + "</a></li>");
    });
    results_list.append(items.join(''));
}

var list_selected;
var li = '';

$('.search').each(function () {
    $(this).keyup(function (e) {
        var search_type = $(this).attr('name');
        results_list = $('#' + search_type + '_list');
        li = results_list.children();
        var key_code = e.keyCode;
        if ($.inArray(key_code, [37, 38, 39, 40]) > -1) {
            if (e.which === 40) {
                if (list_selected) {
                    list_selected.removeClass('selected');
                    next = list_selected.next();
                    if (next.length > 0) {
                        list_selected = next.addClass('selected');
                    } else {
                        list_selected = li.eq(0).addClass('selected');
                    }
                } else {
                    list_selected = li.eq(0).addClass('selected');
                }
            } else if (e.which === 38) {
                if (list_selected) {
                    list_selected.removeClass('selected');
                    next = list_selected.prev();
                    if (next.length > 0) {
                        list_selected = next.addClass('selected');
                    } else {
                        list_selected = li.last().addClass('selected');
                    }
                } else {
                    list_selected = li.last().addClass('selected');
                }
            }
        } else {
            // ### relevant section ###
            if (key_code == 13) {  // what to do here??
                window.location = list_selected.html();
            // ###
            } else {
                results_list.empty();
                var params = {
                    'search_type': search_type,
                        'q': $(this).val()
                };
                if ($(this).val()) {
                    ajaxThis("search_box", params, callback);
                }
            }
        }
    });
});

</script>
4

1 回答 1

2 
if ( key_code == 13 && $('.selected').length > 0 ) { // Make sure there's a selection
  var selected_item = $('li.selected:first a'); // select li and a

   // Two options:
   // A.) Make sure the li a's href is an absolute path so you can do:
    window.location = selected_item.attr('href');
   // B.) Keep the relative href, trigger a click on the element:
    $(selected_item).trigger('click');
 }
于 2013-03-25T22:45:10.463 回答