Question

我正在尝试使用BS4的基于Popper.js的弹出窗口功能。

我正在为显示的事件动态地向其中添加内容，我需要它保持锚定在触发按钮上，并在没有足够空间容纳内容的情况下让主体滚动而不是移至屏幕顶部。< / p>

我真的以为this answer应该受到指责，但不幸的是没有。

接下来的示例是用静态内容制作的，但实际上我是在页面加载时用动态内容填充弹出窗口的，因此请在您的答案/评论中加以考虑。

感谢

内容较少的示例

$('#show-popover').popover({
        container: 'body',
        html: true,
        offset: 100,
        positionFixed: true
});

button{
  position: absolute;
  right: 0
}

<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/>


<!--THIS IS WITH STATIC CONTENT AND IT DOES NOT WORK EITHER-->
<br/>
<button id="show-popover" data-placement="bottom" tabindex="0" class="btn btn-sm btn-light" role="button"
                            data-toggle="popover" title="WANTED BEHAVIOR" data-display="static" data-flip="static" data-content="<br/>a<br/>a<br/>">
                        TRIGGER
                    </button>
                    
                    
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.4/umd/popper.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/js/bootstrap.min.js"></script>

示例内容

$('#show-popover').popover({
        container: 'body',
        html: true,
        offset: 100,
        positionFixed: true
});

$('#show-popover').click(()=>{
  $('#explain').show();
});

button{
  position: absolute;
  right: 0
}

#explain{
position: absolute;
left: 0;
display: none
}

<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/>


<!--THIS IS WITH STATIC CONTENT AND IT DOES NOT WORK EITHER-->
<br/>
<div id="explain">As you can see, it jumps to the top of the page, <br/>instead of staying anchored to the button</div>
<button id="show-popover" data-placement="bottom" tabindex="0" class="btn btn-sm btn-light" role="button"
                            data-toggle="popover" title="UNWANTED BEHAVIOR" data-display="static" data-flip="static" data-content="<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>">
                        TRIGGER
                    </button>
                    
                    
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.4/umd/popper.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/js/bootstrap.min.js"></script>

Answer 1

将容器从主体更改为要附加到的按钮，它将在按钮内部呈现弹出窗口。然后，您将不得不稍微修改一下CSS以适应您的需求。示例：

$('#show-popover').popover({
        container: '#show-popover',
        html: true,
        offset: 100,
        positionFixed: true
});

$('#show-popover').click(()=>{
  $('#explain').show();
});

button{
  position: absolute;
  right: 10px;
  width: 200px;
}

button .arrow {left:50%; margin-left: -8px;}
button .popover {top: 20px !important;}

#explain{
position: absolute;
left: 0;
display: none
}

<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/>


<!--THIS IS WITH STATIC CONTENT AND IT DOES NOT WORK EITHER-->
<br/>
<div id="explain">As you can see, it jumps to the top of the page, <br/>instead of staying anchored to the button</div>
<button id="show-popover"  data-placement="top" tabindex="0" class="btn btn-sm btn-light" role="button"
                            data-toggle="popover" title="UNWANTED BEHAVIOR" data-display="static" data-flip="static" data-content="<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>a<br/>">
                        TRIGGER
                    </button>
                    
                    
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.4/umd/popper.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/js/bootstrap.min.js"></script>

允许Bootstrap4的弹出窗口弹出屏幕

1 个答案: