SingleFile/extension/core/bg/companion.js

/*
 * Copyright 2010-2020 Gildas Lormeau
 * contact : gildas.lormeau <at> gmail.com
 * 
 * This file is part of SingleFile.
 *
 *   The code in this file is free software: you can redistribute it and/or 
 *   modify it under the terms of the GNU Affero General Public License 
 *   (GNU AGPL) as published by the Free Software Foundation, either version 3
 *   of the License, or (at your option) any later version.
 * 
 *   The code in this file is distributed in the hope that it will be useful, 
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of 
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero 
 *   General Public License for more details.
 *
 *   As additional permission under GNU AGPL version 3 section 7, you may 
 *   distribute UNMODIFIED VERSIONS OF THIS file without the copy of the GNU 
 *   AGPL normally required by section 4, provided you include this license 
 *   notice and a URL through which recipients can access the Corresponding 
 *   Source.
 */

/* global singlefile, browser */

singlefile.extension.core.bg.companion = {
	enabled: true,
	async onMessage(message) {
		if (message.method.endsWith(".state")) {
			return { enabled: this.enabled };
		}
	},
	async save(options) {
		try {
			options.autoSaveExternalSave = false;
			const port = browser.runtime.connectNative("singlefile_companion");
			port.postMessage(options);
			await new Promise((resolve, reject) => {
				port.onDisconnect.addListener(() => {
					if (port.error) {
						reject(port.error.message);
					} else if (!browser.runtime.lastError || browser.runtime.lastError.message.includes("Native host has exited")) {
						resolve();
					}
				});
			});
			singlefile.extension.ui.bg.main.onEnd(options.tabId, options.autoSave);
		} catch (error) {
			console.error(error); // eslint-disable-line no-console			
			singlefile.extension.ui.bg.main.onError(options.tabId);
		}
	}
};