зеркало из https://github.com/mozilla/gecko-dev.git
46 строки
1.2 KiB
JavaScript
46 строки
1.2 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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"use strict";
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const Services = require("Services");
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/**
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* Returns the `nsIDOMWindow` toplevel window for any child/inner window
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*/
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function getTopLevelWindow(window) {
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return window.docShell.rootTreeItem.domWindow;
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}
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exports.getTopLevelWindow = getTopLevelWindow;
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function getDOMWindowUtils(window) {
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return window.windowUtils;
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}
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exports.getDOMWindowUtils = getDOMWindowUtils;
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/**
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* Check if the given browser window has finished the startup.
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* @params {nsIDOMWindow} window
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*/
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const isStartupFinished = window => window.gBrowserInit?.delayedStartupFinished;
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function startup(window) {
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return new Promise(resolve => {
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if (isStartupFinished(window)) {
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resolve(window);
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return;
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}
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Services.obs.addObserver(function listener({ subject }) {
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if (subject === window) {
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Services.obs.removeObserver(
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listener,
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"browser-delayed-startup-finished"
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);
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resolve(window);
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}
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}, "browser-delayed-startup-finished");
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});
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}
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exports.startup = startup;
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