gecko-dev/browser/extensions/screenshots/assertIsTrusted.js

21 строка
665 B
JavaScript

/** For use with addEventListener, assures that any events have event.isTrusted set to true
https://developer.mozilla.org/en-US/docs/Web/API/Event/isTrusted
Should be applied *inside* catcher.watchFunction
*/
this.assertIsTrusted = function assertIsTrusted(handlerFunction) {
return function(event) {
if (!event) {
const exc = new Error("assertIsTrusted did not get an event");
exc.noPopup = true;
throw exc;
}
if (!event.isTrusted) {
const exc = new Error(`Received untrusted event (type: ${event.type})`);
exc.noPopup = true;
throw exc;
}
return handlerFunction.call(this, event);
};
};
null;