jquery UI 自动完成多个"response"方法

Question

让我们看看我是否能很好地解释它。。。我有一个函数，可以为我的自动完成设置常用选项(minLength、delay、close、response…(。但我的一个自动完成程序需要在响应方法上做一些额外的工作。如何执行"原始公共响应函数"和额外的工作？是否可以不扩展小部件？

function attachAutocomplete_Common(arControlIds) {
    $.each(arControlIds, function (i, control) {
        $("#" + control).autocomplete({
            minLength: 3,
            delay: 800,
            autoFocus: true,
            focus: function (event, ui) {
                $(this).val(ui.item.label);
                return false;
            },
            response: function (event, ui) {
                if (ui.content != null && ui.content.length === 1) {
                    $(this).data("ui-autocomplete").term = null;
                    $(this).data("ui-autocomplete")._trigger("select", "autocompleteselect", { item: ui.content[0] });
                    $(this).autocomplete("close");
                }
            }
        });
    });
}
$(document).ready(function () {
    attachAutocomplete_Common(["cmbCountry", "cmbCity", "cmZipCode"]);
    $("#cmZipCode").autocomplete({
        response: function (event, ui) {
            [execute common response function];
            doSomeExtraWork();
        }
    });
}); 

Answer 1

将公共代码放入小部件之外的自己的函数中。然后从两个位置调用它-从attachAutocomplete_Common内的response和从#cmZipCode的位置调用：

var commonResponse = function (event, ui) {
    if (ui.content != null && ui.content.length === 1) {
        $(this).data("ui-autocomplete").term = null;
        $(this).data("ui-autocomplete")._trigger("select", "autocompleteselect", { item: ui.content[0] });
        $(this).autocomplete("close");
    }
};
function attachAutocomplete_Common(arControlIds) {
    $.each(arControlIds, function (i, control) {
        $("#" + control).autocomplete({
                // ommitted, see above
            },
            response: commonResponse.bind(this)
        });
    });
}
$(document).ready(function () {
    attachAutocomplete_Common(["cmbCountry", "cmbCity", "cmZipCode"]);
    $("#cmZipCode").autocomplete({
        response: function (event, ui) {
            commonResponse.bind(this)(event, ui);
            doSomeExtraWork();
        }
    });
});

编辑：作用域问题：要么像另一个答案一样，要么通过绑定。我已经更新了代码。我还没有尝试在each循环中绑定函数(如图所示(是否足够。

Answer 2

基于Risadinha的答案，我让它发挥了作用。尝试访问"commonResponse"函数内部的"this"时出错。这是工作代码。

var commonResponse = function (event, ui, $ctl) {
    if (ui.content != null && ui.content.length === 1) {
        var $self = $ctl || $(this);
        $self.data("ui-autocomplete").term = null;
        $self.data("ui-autocomplete")._trigger("select", "autocompleteselect", { item: ui.content[0] });
        $self.autocomplete("close");
    }
};
function attachAutocomplete_Common(arControlIds) {
    $.each(arControlIds, function (i, control) {
        $("#" + control).autocomplete({
                // ommitted, see above
            },
            response: commonResponse
        });
    });
}
$(document).ready(function () {
    attachAutocomplete_Common(["cmbCountry", "cmbCity", "cmbZipCode"]);
    $("#cmbZipCode").autocomplete({
        response: function (event, ui) {
            commonResponse(event, ui, $(this));
            doSomeExtraWork();
        }
    });
});