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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>ally.maintain.disabled Example</title>
</head>
<body>
​
<article id="example-introduction">
  <h1><code>ally.maintain.disabled</code> Example</h1>
​
  <p>
    Use the <code>toggle inert</code> button to render all elements inert (except the buttons and what&apos;s within the blue border).
    Use the <code>add elements</code> button to see that the inert state is applied to dynamically added content as well.
    Note that the disabled elements are visualized with reduced opacity and a red border only for this demo.
  </p>
</article>
​
<div id="example-html">
  <main>
    <button id="toggle" type="button">toggle inert</button>
    <button id="add" type="button">add elements</button>
    <hr>
    <input type="text" value="1 not focusable by keyboard" tabindex="-1">
​
    <div id="outer">
      <input type="text" value="2 tabbable" tabindex="0">
​
      <div id="inner">
        <input type="text" value="3 tabbable">
        <input type="text" value="4 tabbable">
      </div>
​
      <input type="text" value="5 tabbable order" tabindex="1">
    </div>
​
    <input type="text" value="6 tabbable">
  </main>
</div>
​
<script src="https://cdn.jsdelivr.net/ally.js/1.4.1/ally.min.js"></script>
</body>
</html>
​
 
​
:disabled,
[data-ally-disabled] {
  outline: 1px solid red;
  opacity: 0.5;
}
#inner {
  border: 2px solid blue;
}
 
​
var handle;
​
var wrapper = document.getElementById('example-html');
var outer = document.getElementById('outer');
var inner = document.getElementById('inner');
var toggle = document.getElementById('toggle');
var add = document.getElementById('add');
​
toggle.addEventListener('click', function() {
  if (handle) {
    handle.disengage();
    handle = null;
  } else {
    handle = ally.maintain.disabled({
      context: wrapper,
      filter: [inner, toggle, add]
    });
  }
});
​
add.addEventListener('click', function() {
  var inputOuter = document.createElement('input');
  inputOuter.value = "x should not be focusable";
  outer.appendChild(inputOuter);
​
  var inputInner = document.createElement('input');
  inner.appendChild(inputInner);
  inputInner.value = "x should be focusable";
});
​
Output

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