--- title: runtime.onConnect slug: Mozilla/Add-ons/WebExtensions/API/runtime/onConnect tags: - API - Add-ons - Event - Extensions - Non-standard - Reference - WebExtensions - onconnect - runtime translation_of: Mozilla/Add-ons/WebExtensions/API/runtime/onConnect ---
Lancé quand une connexion est établie avec un processus d'extension ou un script de contenu.
browser.runtime.onConnect.addListener(listener) browser.runtime.onConnect.removeListener(listener) browser.runtime.onConnect.hasListener(listener)
Les événements ont trois fonctions :
addListener(callback)
removeListener(listener)
écouteur
est l'écouteur à supprimer.hasListener(listener)
écouteur
est enregistré pour cet événement. Renvoie true
s'il écoute, sinon false
.fonction
Une fonction de rappel qui sera appelée lorsque cet événement se produira. La fonction recevra les arguments suivants:
port
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
{{Compat("webextensions.api.runtime.onConnect")}}
Ce script de contenu :
Port
dans une variable myPort
myPort
, et les enregistremyPort
, lorsque l'utilisateur clique sur le document// content-script.js
var myPort = browser.runtime.connect({name:"port-from-cs"});
myPort.postMessage({greeting: "hello from content script"});
myPort.onMessage.addListener(function(m) {
console.log("In content script, received message from background script: ");
console.log(m.greeting);
});
document.body.addEventListener("click", function() {
myPort.postMessage({greeting: "they clicked the page!"});
});
Le script d'arrière-plan correspondant :
portFromCS
portFromCS
, quand l'utilisateur clique sur l'action du navigateur de l'extension// background-script.js
var portFromCS;
function connected(p) {
portFromCS = p;
portFromCS.postMessage({greeting: "hi there content script!"});
portFromCS.onMessage.addListener(function(m) {
console.log("In background script, received message from content script")
console.log(m.greeting);
});
}
browser.runtime.onConnect.addListener(connected);
browser.browserAction.onClicked.addListener(function() {
portFromCS.postMessage({greeting: "they clicked the button!"});
});
{{WebExtExamples}}
Cette API est basée sur l'API Chromium chrome.runtime
. Cette documentation est dérivée de runtime.json
dans le code de Chromium code.
Les données de compatibilité relatives à Microsoft Edge sont fournies par Microsoft Corporation et incluses ici sous la licence Creative Commons Attribution 3.0 pour les États-Unis.
// Copyright 2015 The Chromium Authors. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.