我在溢出中有一个表:滚动容器,表中有一些按钮,当有人点击它们时,它们会显示一个上下文/工具提示(位置:绝对层)文本。
当我向右滚动并单击按钮时,它向外移动到右边忽略滚动:
使容器位置相对解决位置问题,但它出现在容器内部而不显示菜单:
我需要帮助才能获得以下所需的行为:
这是片段:
.container{
width:200px;
height:100px;
overflow:scroll;
position:relative; /* removing this solves the problem, but .contextual moves to the original position */
}
.board{
width:400px;
}
.contextual{
display:none;
position:absolute;
width:100px;
height:100px;
margin: 20px;
z-index: 2;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class=container>
<table class=board>
<tr><td colspan=2>This board size (200) is bigger than its container size (100).</td></tr>
<tr>
<td>this is a button with a contextual element</td>
<td>
<input type=button value="click me" onclick="$('.contextual').show();" />
<div class=contextual>This is a contextual help text.</div>
</td>
</tr>
</table>
</div>
答案 0 :(得分:2)
如果你和我有同样的问题,父容器设置为 overflow: scroll
并且父元素的子元素被截断,尽管 position: absolute
- 执行以下操作
以用例为例,构建下拉菜单
position: fixed
top
、left
、bottom
、right
的值设置为视口值您可以使用与@jfeferman 中的代码片段相同的代码
答案 1 :(得分:1)
将上下文div放在溢出的div之外,并根据鼠标位置进行定位。
showContext = function() {
var e = window.event;
var posX = e.clientX;
var posY = e.clientY;
var context = document.getElementById("contextual")
context.style.top = posY + "px";
context.style.left = posX + "px";
context.style.display = "block";
}
.container{
width:200px;
height:100px;
overflow:scroll;
position:relative; /* removing this solves the problem, but .contextual moves to the original position */
z-index:1;
}
.board{
width:400px;
}
#contextual{
display:none;
position:absolute;
width:100px;
height:100px;
background-color:grey;
z-index: 2;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="container">
<table class="board">
<tr><td colspan=2>This board size (200) is bigger than its container size (100).</td></tr>
<tr>
<td>this is a button with a contextual element</td>
<td>
<input type="button" value="click me" onclick="javascript:showContext();" />
</td>
</tr>
</table>
</div>
<div id="contextual">This is a contextual help text.</div>
答案 2 :(得分:-1)
您可以使用z-index: 2
。这将仅在必要时显示滚动条。另外,您可以从.contextual
删除filter.jq
。