Uninstalling an event listener in a Chrome extension

Question

Uninstalling an event listener in a Chrome extension

Is there a way to remove the listener attached to the onRequest event by

chrome.extension.onRequest.addListener

in Chrome after a request is made? I tried doing it like this:

chrome.extension.onRequest.addListener(
    function(request){
        chrome.extension.onRequest.removeListener();
        other_function(request);
    }
);

However, I am unsure if this method actually works. Attempting to use

chrome.extension.onRequest.hasListener

did not yield accurate results either. Are there any alternative approaches to removing the onRequest listener or verifying its existence?

Thank you!

javascript events event-handling google-chrome-extension

Answer 1

Answer №1

removeListener requires a specified argument in order to properly remove the listener function:

function executeAction(request){
    chrome.extension.onRequest.removeListener(executeAction);
    another_function(request);
}
chrome.extension.onRequest.addListener(executeAction);

Alternatively, a more concise approach would be:

chrome.extension.onRequest.addListener(
    function executeAction(request){
        chrome.extension.onRequest.removeListener(executeAction);
        another_function(request);
    }
);

Answer 2

removeListener requires a specified argument in order to properly remove the listener function:

function executeAction(request){
    chrome.extension.onRequest.removeListener(executeAction);
    another_function(request);
}
chrome.extension.onRequest.addListener(executeAction);

Alternatively, a more concise approach would be:

chrome.extension.onRequest.addListener(
    function executeAction(request){
        chrome.extension.onRequest.removeListener(executeAction);
        another_function(request);
    }
);

Answer 3

Answer №2

Here's a straightforward and easy way to utilize anonymous functions:

chrome.runtime.onMessage.addListener(function(msg, sender, reply) {
    chrome.runtime.onMessage.removeListener(arguments.callee);
});

Answer 4

Here's a straightforward and easy way to utilize anonymous functions:

chrome.runtime.onMessage.addListener(function(msg, sender, reply) {
    chrome.runtime.onMessage.removeListener(arguments.callee);
});

Answer 5

Answer №3

// setting up event listener
const addEventListener = (id, bookmark) => {
  // perform actions 
};

React.useEffect(() => { 
  // Add event listener
  chrome.bookmarks.onCreated.addListener(addEventListener);

  // Cleanup by removing event listener
  return () => {
    chrome.bookmarks.onCreated.removeListener(addEventListener);
  };
}, []);

Answer 6

// setting up event listener
const addEventListener = (id, bookmark) => {
  // perform actions 
};

React.useEffect(() => { 
  // Add event listener
  chrome.bookmarks.onCreated.addListener(addEventListener);

  // Cleanup by removing event listener
  return () => {
    chrome.bookmarks.onCreated.removeListener(addEventListener);
  };
}, []);

Uninstalling an event listener in a Chrome extension

Answer №1

Answer №2

Answer №3

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