javascript – 离开textarea时按钮点击不点火

我目前正在制作一个自动扩展的textarea.这似乎工作正常,但是当textarea扩展时按钮点击似乎永远不会触发.我也在使用angularjs.这是我的代码

使用Javascript：

var app = angular.module('myApp',[]);

app.directive('myDir',function(){
    return {
        restrict:'A',template:'</pre>
<p>如果有人可以帮我找到<a href="https://www.jb51.cc/tag/jiejuefangfa/" target="_blank" class="keywords">解决方法</a>或解释为什么会发生这种情况,我将不胜感激.</p>
<p><a href="https://www.jb51.cc/tag/lianjie/" target="_blank" class="keywords">链接</a>到codepen：<a href="http://codepen.io/anon/pen/mJrjpP" rel="nofollow">http://codepen.io/anon/pen/mJrjpP</a></div>
<div class='answers_count'>最佳答案</div>
<div class='answers'>当textarea聚焦时,按钮向下移动一点,当您单击按钮时,textareas blur事件首先触发,向上移动按钮,因此按钮移动时不会发生单击.</p>
<p><a href="https://www.jb51.cc/tag/jiejuefang/" target="_blank" class="keywords">解决方</a>案是确保按钮保持放置,使用CSS定位,或者如下面的gyantasaurus<a href="https://www.jb51.cc/tag/pinglun/" target="_blank" class="keywords">评论</a>中所述</p>
<p></p>
<pre><code><button ng-mousedown="clicked()">Click me</button>
</code></pre>
</div>
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