SingleFile/lib/single-file/index.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 window */

this.singlefile = this.singlefile || {
	lib: {
		processors: {
			frameTree: {
				content: {}
			},
			hooks: {
				content: {}
			},
			lazy: {
				content: {}
			}
		},
		vendor: {},
		modules: {},
		async getPageData(options = {}, initOptions, doc = window.document, win = window) {
			const frames = this.processors.frameTree.content.frames;
			let framesSessionId;
			this.main.init(initOptions);
			if (doc && window) {
				this.helper.initDoc(doc);
				const preInitializationPromises = [];
				if (!options.saveRawPage) {
					if (!options.removeFrames && frames && window.frames && window.frames.length) {
						let frameTreePromise;
						if (options.loadDeferredImages) {
							frameTreePromise = new Promise(resolve => window.setTimeout(() => resolve(frames.getAsync(options)), options.loadDeferredImagesMaxIdleTime - frames.TIMEOUT_INIT_REQUEST_MESSAGE));
						} else {
							frameTreePromise = frames.getAsync(options);
						}
						preInitializationPromises.push(frameTreePromise);
					}
					if (options.loadDeferredImages) {
						preInitializationPromises.push(this.processors.lazy.content.loader.process(options));
					}
				}
				[options.frames] = await Promise.all(preInitializationPromises);
				framesSessionId = options.frames && options.frames.sessionId;
			}
			options.doc = doc;
			options.win = win;
			options.insertSingleFileComment = true;
			options.insertCanonicalLink = true;
			options.onprogress = event => {
				if (event.type === event.RESOURCES_INITIALIZED) {
					if (options.loadDeferredImagesKeepZoomLevel) {
						this.processors.lazy.content.loader.resetZoomLevel();
					}
				}
			};
			const processor = new this.SingleFile(options);
			await processor.run();
			if (framesSessionId) {
				frames.cleanup(framesSessionId);
			}
			return await processor.getPageData();
		}
	}
};