Javascript event listener
Posted: Thu May 13, 2021 1:27 pm
Is there any way to reproduce this functionality in CEF4Delphi? i.e. listen to those events generated by a web page. Web page is third party so I don't control the way how messages are generated.
Code: Select all
function receiveMessage(event) {
var context = callbackFrontEnd;
if (event.origin == context) {
console.log('event.data', event.data);
switch (event.data.intencion.evento) {
case 'EVENT1':
// Actions for event 1
console.log('Event 1');
break;
case 'EVENT2':
// Actions for event 2
console.log('Event 2');
break;
case 'ERROR':
// Actions for error
console.log('Error');
break;
}
}
return;
}
// Loads message event listener
function loadEventListener() {
console.log('Loading message event listener...');
window.addEventListener('message', receiveMessage);
console.log('Message event listener loaded.');
}