I am developing a safari web extension. I need send data from Web Extension’s background page to native app. Native app gets this message and signs it with USB key to generate a signature value. Then Native app sends the signature value back to background page. Messaging a Web Extension’s Native App
First, I create a port in background.js
let port = browser.runtime.connectNative("application.id");
Add a listener to that port to receive message from Native App，as follow:
port.onMessage.addListener(function(message) {
console.log("Received native port message:");
console.log(message);
});
In my native app, I can send message to background page with following codes:
SFSafariApplication.dispatchMessage(withName: "Hello from App",
toExtensionWithIdentifier: extensionBundleIdentifier,
userInfo: ["AdditionalInformation": "Goes Here"],
completionHandler: { (error) -> Void in
os_log(.default, "Dispatching message to the extension finished")
})
But how can I send message from background page to Native App? In “Messaging a Web Extension’s Native App” demo, messages are send by following code:
port.postMessage("Hello from JavaScript Port");
But there are no codes to show how to receive this message in native app.
In native app, How can I receive messages sent by “postMessage” from background page? If you can provide a demo with object-C, I will be very grateful. Thanks!
