关于【bootstrap】中，【tooltip】的不算bug的bug的个人看法_html/css

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关于【bootstrap】中，【tooltip】的不算bug的bug的个人看法_html/css_WEB-ITnose

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Jun 24, 2016 am 11:30 AM

先说下遇到这个问题的背景吧。

就是在页面中有个div，这个div右上角（或者其他位置）有个 × 的图标（这个图标添加tooltip工具提示），光标移到这个图标时，触发tooltip，提示“点击移除”这样类似的字样，然后点击后，把这个div作remove()这样的删除操作。

然后，问题来了，因为这个div被remove()了，导致生成的tooltip对应的 × 图标也被remove()，因为找不到，所以对应的mouseout（可能是mouseleave事件，参考了一下bootstrap的源码，没找出头绪，猜测是这两个的其中一个）事件就没法触发，导致tooltip工具提示一直在那里，出bug了。

文字不多讲，上图比较直观。

先把代码附上：

【代码部分】（里面的bootstrap文件和js用的本地的，有需要自己尝试运行的到时候需要改动一下）：

<!DOCTYPE html><html lang="zh-CN"><head>    <title>test</title>    <meta charset="utf-8">    <link rel="stylesheet" href="./bootstrap/css/bootstrap.min.css">    <link rel="stylesheet" href="./font-awesome/css/font-awesome.min.css">    <script src="./bootstrap/js/jquery-1.11/jquery.min.js"></script>    <script src="./bootstrap/js/bootstrap.min.js"></script></head><body>    <div style="width:70%;margin:50px auto;height:300px;">        <a id="test01" href="javascript:;" data-toggle="tooltip" title="反馈错误" data-placement="top" data-container="body">            <span  class="fa fa-bug"></span>        </a>        <a id="test" href="javascript:;" data-toggle="tooltip" title="点击移除" data-placement="top" data-container="body">            <span  class="fa fa-times"></span>        </a>    </div>    <script>        $("[data-toggle='tooltip']").tooltip();                $("#test").on("click",function(){            var $this = $(this);            $this.remove();            $(".tooltip.fade.top.in").remove();//这行代码是我个人用来解决这个问题而添加的        })    </script></body></html>

火狐中，页面效果和对应的代码（好像和上面附上的代码重了，不过比较直观）

鼠标划过对应的图标（已经添加了tooltip，用了bootstrap框架提供的样式和js），同时留意一下tooltip所对应div的id

光标移开后，再聚焦到对应的×图标上，对比一下id，发现id变了

这里，顺便说一下，原本我是打算去看bootstrap的源码，看看他在tooltip这块的源码怎么写的，好从根源上解决问题。

后来看了一部分后，放弃了，对我现在的半吊子水平来说，压力有点大。

但是至少从这个来说，生成的tooltip，id是随机的，而且tooltip的隐藏，并不是“display:none”的隐藏，应该是“remove()”的隐藏。

PS：我个人的理解，不知道对不对，希望来大神指导一下。

重现一下bug吧，下面上图。

下面把那行代码的注释取消，用我自己的方法试一下。

以上就是用我的方法得到的最后效果了。

把 × 图标移除后，鼠标再划过 bug 图标，可以正常显示tooltip工具提示，至少，现阶段看来没问题，至于截图，太占位置了，还是不上了。

PS：这个方法我和同事提了一下，因为tooltip这块用的是bootstrap提供的框架，一整套的，就怕改动一下，别的地方出现问题，所以，我这个新人小白就放弃这个方法了，希望大神来指导一下，能有更好的办法。

【总结】

最后，再额外废话几句吧。

刚开始的思路，是通过要删除的元素，找到对应生成的tooltip，然后把它隐藏的（display:none），后来发现好像找不到。

因为id会一直变（我个人猜想，没验证，因为源码读起来对我有点压力，至少他的id应该是随机生成的，就算是有规则的，我也实在不知道），就像刚开始那两张截图提到的，找不到唯一的；如果通过class来找，可能找到的不是唯一的，因为同一个页面下还有其他的标签元素也能使用了tooltip。

后来在本地试了下后，主要是生成的tooltip没有删去（之所以不用“隐藏”，正如上面那几张截图提到的，并非toolitip提示display:none，而是直接remove()了该提示）。

然后想了下，每次光标经过添加了tooltip的元素后，好像这个都是重新生成的，对应的，每次光标移除，对应的tooltip都会remove()，

所以想到了这个方法：在对应元素remove()后，找到页面上的$("div.tooltip.fade.in")，然后remove()，理论上是不会影响到其他的。

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