Layui switch 确定之后才改变状态

<input type="checkbox" lay-skin="switch" lay-filter="keywordsreply" lay-text="开启|关闭">
<div class="iframe_cover" style="display: none;"></div>
<div class="delDiv" style="display: none;">
        <div class="titleDiv">
            <p>删除提示</p>
        </div>
        <div class="dialogDiv">
            <p></p>
        </div>
        <div class="dialogBtn">
            <span class="del_confirm">确定</span>
            <span class="cancel">取消</span>
        </div>
    </div>

.delDiv {
    width: 400px;
    height: 200px;
    position: absolute;
    left: 50%;
    top: 50%;
    margin: -100px 0 0 -200px;
    border: 1px solid #ededed;
    z-index: 1000;
    background: #fff;
    text-align: left;
    color: #000;
}

.del_confirm {
    border: 1px solid #f75454;
    color: #f75454;
}

    .del_confirm:hover {
        background: #f75454;
        color: #fff;
    }


.delDiv .dialogDiv p {
    font-size: 13px;
    align-items: center;
    line-height: 20px;
    text-align: center;
    padding: 10px 0 10px;
}
.titleDiv {
    position: absolute;
    top: 0;
    line-height: 40px;
    left: 0;
    right: 0;
    border-bottom: 1px solid #eee;
    font-size: 14px;
    padding-left: 15px;
    color: #333;
}
.delDiv .dialogDiv {
    position: absolute;
    top: 40px;
    bottom: 45px;
    left: 0;
    right: 0;
    padding: 20px;
}
.dialogBtn {
    position: absolute;
    bottom: 0;
    height: 60px;
    left: 0;
    right: 0;
    text-align: right;
}

    .dialogBtn span {
        width: 80px;
        height: 30px;
        line-height: 30px;
        text-align: center;
        display: inline-block;
        margin-top: 15px;
        margin-right: 15px;
        border-radius: 3px;
        font-size: 13px;
        cursor: pointer;
    }
.iframe_cover {
    opacity: 0.5;
    background: #D9E9FF;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    z-index: 999;
}

//监听指定开关
        layui.use('form', function () {
            var form = layui.form
            , layer = layui.layer
            form.on('switch(keywordsreply)', function (data) {
                var x = data.elem.checked;
                if (!x) {
                    $(top.$('.delDiv .titleDiv p')).text('提示');
                    $(top.$('.delDiv .dialogDiv p')).html('关闭关键词回复将影响问题列表中问题答案的正常执行。<br> 确定要关闭关键词回复？');
                    $(top.$('.delDiv .dialogDiv p')).css('text-align',"left");
                    $(top.$('.iframe_cover')).show();
                    $(top.$('.delDiv')).show();
                    $(top.$('.delDiv .del_confirm')).unbind('click').click(function () {
                        data.elem.checked = x;
                        form.render();
                        $(top.$('.iframe_cover')).hide();
                        $(top.$('.delDiv')).hide();
                    });
                    //取消
                    $(top.$('.delDiv .cancel')).click(function () {
                        data.elem.checked = !x;
                       form.render();
                        $(top.$('.iframe_cover')).hide();
                        $(top.$('.delDiv')).hide();
                    });
                   return false;
                }
            });
        });