---
title: onStateChanged
slug: Mozilla/Add-ons/WebExtensions/API/captivePortal/onStateChanged
tags:
  - API
  - Add-ons
  - Extensions
  - Non-standard
  - Reference
  - WebExtensions
  - captivePortal
translation_of: Mozilla/Add-ons/WebExtensions/API/captivePortal/onStateChanged
---
<div>{{AddonSidebar()}}</div>

<p>S'allume lorsque l'état de portail captif change.</p>

<h2 id="Syntaxe">Syntaxe</h2>

<pre class="syntaxbox brush:js notranslate">browser.captivePortal.onStateChanged.addListener(callback)
browser.captivePortal.onStateChanged.removeListener(listener)
browser.captivePortal.onStateChanged.hasListener(listener)
</pre>

<p>Les événements ont trois fonctions :</p>

<dl>
 <dt><code>addListener(callback)</code></dt>
 <dd>Ajoute un auditeur à cet événement.</dd>
 <dt><code>removeListener(listener)</code></dt>
 <dd>Arrêtez d'écouter cet événement. L'argument de <code>listener</code> est l'auditeur à retirer.</dd>
 <dt><code>hasListener(listener)</code></dt>
 <dd>Vérifiez si <code>listener</code> est inscrit à cet événement. Renvoie <code>true</code> si c'est un auditeur, sinon <code>false</code>.</dd>
</dl>

<h2 id="Syntaxe_addListener">Syntaxe addListener</h2>

<h3 id="Paramétres">Paramétres</h3>

<dl>
 <dt><code>callback</code></dt>
 <dd>
 <p>Fonction qui est appelée lorsque cet événement se produit. La fonction se voit transmettre les arguments suivants :</p>

 <dl class="reference-values">
  <dt><code>details</code></dt>
  <dd>
  <p><code>string</code> L'État portail captif, étant l'un des <code>unknown</code>, <code>not_captive</code>, <code>unlocked_portal</code>, ou <code>locked_portal</code>.</p>
  </dd>
 </dl>
 </dd>
</dl>

<h2 id="Exemples">Exemples</h2>

<p>Gérer un changement de statut de portail captif :</p>

<pre class="brush: js notranslate">function handlePortalStatus(portalstatusInfo) {
  console.log("The portal status is now: " + portalstatusInfo.details);
}

browser.captivePortal.onStateChanged.addListener(handlePortalStatus)
</pre>

<p>{{WebExtExamples}}</p>

<h2 id="Compatibilité_du_navigateur">Compatibilité du navigateur</h2>

<p>{{Compat("webextensions.api.captivePortal.onStateChanged")}}</p>

<div class="hidden">
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</pre>
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