Question

有一个名为“dvUsers”的div。有一个锚标签“lnkUsers”。

当点击anchortag时，div必须像它下方的弹出式div一样打开。

此外，div的相对位置应保持在窗口调整大小和所有。如何使用javascript / jquery？

Answer 1

也许您应该寻找像 overLIB 这样的预制脚本：http://www.bosrup.com/web/overlib/！ - ）

Answer 2

我的偏好是将这两个放在父div中，如下所示：

<div id="container">
    <a id="lnkUsers" href="#">Users</a>
    <div id="dvUsers" style="display: none;">
        <!-- user content... -->
    </div>
</div>

这些元素的CSS将是：

#container{
    /* ensure that #dvUsers is positioned relatively to this element */
    position: relative;
}
#dvUsers{
    position: absolute;
    /* this value should be based on the font-size of #lnkUsers */
    top: 30px;
    left: -10px;
}

这可确保div相对于链接正确定位。（为了这个问题，我假设父div是“text-align：left”或者浮动）

javascript看起来像这样：

$(function(){
    $('#lnkUsers').click(function(){
        $('#dvUsers').slideToggle();
    });
});

Answer 3

$(document).ready(function(){ $("#lnkUsers").click(function(){ $("#dvUser").show("slow"); });

首先应将

style =“display：none”应用于dvUser，使其不可见。

Answer 4

您可以使用jQuery插件PositionCalculator。

HTML：

  <p><a class="lnkUsers" href="javascript:void(0)">Users Link1</a></p>
  <p><a class="lnkUsers" href="javascript:void(0)">Users Link 2</a></p>
  <p><a class="lnkUsers" href="javascript:void(0)">Users Link 3</a></p>
  <p><a class="lnkUsers" href="javascript:void(0)">Users Link 4</a></p>
  <p><a class="lnkUsers" href="javascript:void(0)">Users Link 5</a></p>
  <p><a class="lnkUsers" href="javascript:void(0)">Users Link 6</a></p>
  <p><a class="lnkUsers" href="javascript:void(0)">Users Link 7</a></p>
  <p><a class="lnkUsers" href="javascript:void(0)">Users Link 8</a></p>
  <p><a class="lnkUsers" href="javascript:void(0)">Users Link 9</a></p>

  <div id="dvUsers" style="display:none; position:absolute; padding:10px; background:rgba(0,0,0,0.8); color:#ffffff">
    I am the popup. <b>Click me to close</b>
    <div class="dynamicInfo"></div>
  </div>

JavaScript的：

jQuery(function($) {
    var $popup = $('#dvUsers');
    var $infoField = $popup.find('.dynamicInfo');

    function showPopup(event) {

        // set content
        $infoField.text('clicked link: ' + $(this).text());

        // reset position
        $popup.show().css({top: 0, left: 0});

        // calculate new position
        var calculator = new $.PositionCalculator({
            item: $popup,
            itemAt: "top left",
            target: this,
            targetAt: "bottom left",
            flip: "both"
        });
        var posResult = calculator.calculate();

        // set new position
        $popup.css({
            top: posResult.moveBy.y + "px",
            left: posResult.moveBy.x + "px"
        });

        // window resize handler
        $(window).off('resize.dvUsers');
        $(window).on('resize.dvUsers', function(event) {
            $popup.css({top: 0, left: 0});
            var newResult = calculator.resize().calculate();
            $popup.css({
                top: newResult.moveBy.y + "px",
                left: newResult.moveBy.x + "px"
            });
        });
    }

    // add click handler for show and hide
    $('.lnkUsers').on('click', showPopup);
    $popup.on('click', function() {
        $popup.hide();
        $(window).off('resize.dvUsers');
    });
});

以下是example at JSBin

DIV的相对定位

4 个答案: