| <!DOCTYPE html> |
| <meta charset=utf-8> |
| <title>Selector: pseudo-classes (:required, :optional)</title> |
| <link rel="author" title="Denis Ah-Kang" href="mailto:denis@w3.org" id=link1> |
| <link rel=help href="https://html.spec.whatwg.org/multipage/#pseudo-classes" id=link2> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="utils.js"></script> |
| <div id="log"></div> |
| <input type=text id=text1 value="foobar" required> |
| <input type=text id=text2 required> |
| <input type=text id=text3> |
| <select id=select1 required> |
| <optgroup label="options" id=optgroup1> |
| <option value="option1" id=option1>option1 |
| </select> |
| <select id=select2> |
| <optgroup label="options" id=optgroup2> |
| <option value="option2" id=option2>option2 |
| </select> |
| <textarea required id=textarea1>textarea1</textarea> |
| <textarea id=textarea2>textarea2</textarea> |
| |
| <script> |
| testSelector(":required", ["text1", "text2", "select1", "textarea1"], "':required' matches required <input>s, <select>s and <textarea>s"); |
| testSelector(":optional", ["text3", "select2", "textarea2"], "':optional' matches elements <input>s, <select>s and <textarea>s that are not required"); |
| |
| document.getElementById("text1").removeAttribute("required"); |
| testSelector(":required", ["text2", "select1", "textarea1"], "':required' doesn't match elements whose required attribute has been removed"); |
| testSelector(":optional", ["text1", "text3", "select2", "textarea2"], "':optional' matches elements whose required attribute has been removed"); |
| |
| document.getElementById("select2").setAttribute("required", "required"); |
| testSelector(":required", ["text2", "select1", "select2", "textarea1"], "':required' matches elements whose required attribute has been added"); |
| testSelector(":optional", ["text1", "text3", "textarea2"], "':optional' doesn't match elements whose required attribute has been added"); |
| </script> |
