DecSoft Support - Broswer Plugin - Sending message from Content to the Plugin

Broswer Plugin - Sending message from Content to the Plugin

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John Clarke

In my plugin I have attached an event to all anchor tags on the content by using the following code :

 
  // Locate all of the hyperlinks on the page
   var hyperlinks = document.querySelectorAll('a');

   // Loop through all of the hyperlinks adding the hyperlinkHandler
    Array.from(hyperlinks).forEach(hyperlink => {
    hyperlink.addEventListener('click', hyperLinkHandler);
  });

My event for the hyperLinkHandler is as follows :


function hyperLinkHandler(event)
{

  // Prevent the event from bubbling up
  event.preventDefault();

  // Log to console
  console.log(event.target.href);  

  // Send the message object
  chrome.runtime.sendMessage("hyperlink clicked");
}

althought the console.log works the chrome.runtime.sendMessage isn't sending the message to the WebExtMessage event in order to be gathered by the plugin.

How can I fix this ?

DecSoft

Hello John,

Certainly, you touch a good point... you are right, the "sendMessage" don't work as expected, well, as you can see it working in the WebExtension sample app, for example. I think this can be caused because the "sendMessage" used in the WebExtension sample app is called after an action (a button click) in the same app, and not an event from the extension content script.

Let me to take a look, John, maybe I can find some possible alternative or finally find what can happen in this situation.

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John Clarke

I think I have a working solution. I will email it to you.

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