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deploy: e1a9b85bbe1fa2821937d3c7626f8a05bdf6427f
2024-03-08 12:17:19 +00:00
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deploy: e8b501de6ffad4ea9512810b51d23c32346f9223
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<title data-rh="true">Accessibility class | Puppeteer</title><meta data-rh="true" name="viewport" content="width=device-width,initial-scale=1"><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://pptr.dev/api/puppeteer.accessibility"><meta data-rh="true" property="og:locale" content="en"><meta data-rh="true" name="docsearch:language" content="en"><meta data-rh="true" name="docsearch:counter" content="2"><meta data-rh="true" property="og:title" content="Accessibility class | Puppeteer"><meta data-rh="true" name="description" content="The Accessibility class provides methods for inspecting the browser&#x27;s accessibility tree. The accessibility tree is used by assistive technology such as screen readers or switches."><meta data-rh="true" property="og:description" content="The Accessibility class provides methods for inspecting the browser&#x27;s accessibility tree. The accessibility tree is used by assistive technology such as screen readers or switches."><link data-rh="true" rel="icon" href="/img/favicon.ico"><link data-rh="true" rel="canonical" href="https://pptr.dev/api/puppeteer.accessibility"><link data-rh="true" rel="alternate" href="https://pptr.dev/api/puppeteer.accessibility" hreflang="en"><link data-rh="true" rel="alternate" href="https://pptr.dev/api/puppeteer.accessibility" hreflang="x-default"><link data-rh="true" rel="preconnect" href="https://DVKY664LG7-dsn.algolia.net" crossorigin="anonymous"><link rel="search" type="application/opensearchdescription+xml" title="Puppeteer" href="/opensearch.xml">
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<script>!function(){function t(t){document.documentElement.setAttribute("data-theme",t)}var e=function(){try{return new URLSearchParams(window.location.search).get("docusaurus-theme")}catch(t){}}()||function(){try{return localStorage.getItem("theme")}catch(t){}}();t(null!==e?e:"light")}(),function(){try{const c=new URLSearchParams(window.location.search).entries();for(var[t,e]of c)if(t.startsWith("docusaurus-data-")){var a=t.replace("docusaurus-data-","data-");document.documentElement.setAttribute(a,e)}}catch(t){}}()</script><div id="__docusaurus"><div role="region" aria-label="Skip to main content"><a class="skipToContent_fXgn" href="#__docusaurus_skipToContent_fallback">Skip to main content</a></div><nav aria-label="Main" class="navbar navbar--fixed-top"><div class="navbar__inner"><div class="navbar__items"><button aria-label="Toggle navigation bar" aria-expanded="false" class="navbar__toggle clean-btn" type="button"><svg width="30" height="30" viewBox="0 0 30 30" aria-hidden="true"><path stroke="currentColor" stroke-linecap="round" stroke-miterlimit="10" stroke-width="2" d="M4 7h22M4 15h22M4 23h22"></path></svg></button><a class="navbar__brand" href="/"><div class="navbar__logo"><img src="https://user-images.githubusercontent.com/10379601/29446482-04f7036a-841f-11e7-9872-91d1fc2ea683.png" alt="Puppeteer Logo" class="themedComponent_mlkZ themedComponent--light_NVdE"><img src="https://user-images.githubusercontent.com/10379601/29446482-04f7036a-841f-11e7-9872-91d1fc2ea683.png" alt="Puppeteer Logo" class="themedComponent_mlkZ themedComponent--dark_xIcU"></div><b class="navbar__title text--truncate">Puppeteer</b></a><a class="navbar__item navbar__link" href="/">Docs</a><a aria-current="page" class="navbar__item navbar__link navbar__link--active" href="/api/puppeteer.puppeteernode">Puppeteer API</a><a class="navbar__item navbar__link" href="/browsers-api/">@puppeteer/browsers API</a></div><div class="navbar__items navbar__items--right"><div class="navbar__item dropdown dropdown--hoverable dropdown--right"><a class="navbar__link" aria-haspopup="true" aria-expanded="false" role="button" href="/">22.4.1</a><ul class="dropdown__menu"><li><a class="dropdown__link" href="/next/api/puppeteer.accessibility">Next</a></li><li><a aria-current="page" class="dropdown__link dropdown__link--active" href="/api/puppeteer.accessibility">22.4.1</a></li><li><hr class="dropdown-separator"></li><li class="dropdown-archived-versions"><b>Archived versions</b></li><li><a href="https://github.com/puppeteer/puppeteer/blob/puppeteer-v22.4.0/docs/api/index.md" target="_blank" rel="noopener noreferrer" class="dropdown__link">22.4.0<svg width="12" height="12" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li><a href="https://github.com/puppeteer/puppeteer/blob/puppeteer-v22.3.0/docs/api/index.md" target="_blank" rel="noopener noreferrer" class="dropdown__link">22.3.0<svg width="12" height="12" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li><a href="https://github.com/puppeteer/puppeteer/blob/puppeteer-v22.2.0/docs/api/index.md" target="_blank" rel="noopener noreferrer" class="dropdown__link">22.2.0<svg width="12" height="12" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li><a href="https://github.com/puppeteer/puppeteer/blob/puppeteer-v22.1.0/docs/api/index.md" target="_blank" rel="noopener noreferrer" class="dropdown__link">22.1.0<svg width="12" height="12" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10
deploy: 1014abc087e8bc549697fbc688dd332af4ec6959
2023-11-29 13:34:30 +00:00
<p>The Accessibility class provides methods for inspecting the browser&#x27;s accessibility tree. The accessibility tree is used by assistive technology such as <a href="https://en.wikipedia.org/wiki/Screen_reader" target="_blank" rel="noopener noreferrer">screen readers</a> or <a href="https://en.wikipedia.org/wiki/Switch_access" target="_blank" rel="noopener noreferrer">switches</a>.</p>
<h4 class="anchor anchorWithStickyNavbar_LWe7" id="signature">Signature:<a href="#signature" class="hash-link" aria-label="Direct link to Signature:" title="Direct link to Signature:">​</a></h4>
<div class="language-typescript codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-typescript codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">export</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">declare</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">class</span><span class="token plain"> </span><span class="token class-name">Accessibility</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div>
<h2 class="anchor anchorWithStickyNavbar_LWe7" id="remarks">Remarks<a href="#remarks" class="hash-link" aria-label="Direct link to Remarks" title="Direct link to Remarks">​</a></h2>
<p>Accessibility is a very platform-specific thing. On different platforms, there are different screen readers that might have wildly different output.</p>
<p>Blink - Chrome&#x27;s rendering engine - has a concept of &quot;accessibility tree&quot;, which is then translated into different platform-specific APIs. Accessibility namespace gives users access to the Blink Accessibility Tree.</p>
<p>Most of the accessibility tree gets filtered out when converting from Blink AX Tree to Platform-specific AX-Tree or by assistive technologies themselves. By default, Puppeteer tries to approximate this filtering, exposing only the &quot;interesting&quot; nodes of the tree.</p>
<p>The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the <code>Accessibility</code> class.</p>
<h2 class="anchor anchorWithStickyNavbar_LWe7" id="methods">Methods<a href="#methods" class="hash-link" aria-label="Direct link to Methods" title="Direct link to Methods">​</a></h2>
deploy: 31a23399a96a6c7e1e5603b5b3431c68f12fd33d
2024-01-29 14:00:22 +00:00
<table><thead><tr><th>Method</th><th>Modifiers</th><th>Description</th></tr></thead><tbody><tr><td><a href="/api/puppeteer.accessibility.snapshot">snapshot(options)</a></td><td></td><td>Captures the current state of the accessibility tree. The returned object represents the root accessible node of the page.</td></tr></tbody></table></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/api/puppeteer.webworker.url"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">WebWorker.url</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/api/puppeteer.accessibility.snapshot"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Accessibility.snapshot</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#remarks" class="table-of-contents__link toc-highlight">Remarks</a></li><li><a href="#methods" class="table-of-contents__link toc-highlight">Methods</a></li></ul></div></div></div></div></main></div></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">Community</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://stackoverflow.com/questions/tagged/puppeteer" target="_blank" rel="noopener noreferrer" class="footer__link-item">Stack Overflow<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="https://twitter.com/chromedevtools" target="_blank" rel="noopener noreferrer" class="footer__link-item">Twitter<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="https://goo.gle/devtools-youtube" target="_blank" rel="noopener noreferrer" class="footer__link-item">YouTube<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2024 Google, Inc.</div></div></div></footer></div>
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