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