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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
EventDispatcher: "resource://gre/modules/Messaging.sys.mjs",
});
export const GeckoViewTabUtil = {
/**
* Creates a new tab through service worker delegate.
* Needs to be ran in a parent process.
*
* @param {string} url
* @returns {Tab}
* @throws {Error} Throws an error if the tab cannot be created.
*/
async createNewTab(url = "about:blank") {
let sessionId = "";
const windowPromise = new Promise(resolve => {
const openingObserver = subject => {
if (subject.name === sessionId) {
Services.obs.removeObserver(
openingObserver,
"browser-delayed-startup-finished"
);
resolve(subject);
}
};
Services.obs.addObserver(
openingObserver,
"browser-delayed-startup-finished"
);
});
try {
sessionId = await lazy.EventDispatcher.instance.sendRequestForResult({
type: "GeckoView:Test:NewTab",
url,
});
} catch (errorMessage) {
throw new Error(
errorMessage + " GeckoView:Test:NewTab is not supported."
);
}
if (!sessionId) {
throw new Error("Could not open a session for the new tab.");
}
const window = await windowPromise;
// Immediately load the URI in the browser after creating the new tab to
// load into. This isn't done from the Java side to align with the
// ServiceWorkerOpenWindow infrastructure which this is built on top of.
window.browser.fixupAndLoadURIString(url, {
flags: Ci.nsIWebNavigation.LOAD_FLAGS_NONE,
triggeringPrincipal: Services.scriptSecurityManager.getSystemPrincipal(),
});
return window.tab;
},
};