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feedSettings.js (5491B)

---

 /*
     ***** BEGIN LICENSE BLOCK *****
     
     Copyright © 2015 Center for History and New Media
                      George Mason University, Fairfax, Virginia, USA
                      http://zotero.org
     
     This file is part of Zotero.
     
     Zotero is free software: you can redistribute it and/or modify
     it under the terms of the GNU Affero General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
     
     Zotero 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.
     
     You should have received a copy of the GNU Affero General Public License
     along with Zotero.  If not, see <http://www.gnu.org/licenses/>.
     
     ***** END LICENSE BLOCK *****
 */
 
 //////////////////////////////////////////////////////////////////////////////
 //
 // Zotero_Feed_Settings
 //
 //////////////////////////////////////////////////////////////////////////////
 
 var Zotero_Feed_Settings = new function() {
 	let urlIsValid = true,
 		data = null,
 		feedReader = null,
 		urlTainted = false;
 	
 	let cleanURL = function(url) {
 		let cleanURL = Zotero.Utilities.cleanURL(url, true);
 
 		if (cleanURL) {
 			if (/^https?:\/\/[^\/\s]+\/\S/.test(cleanURL)) {
 				return cleanURL;
 			} else {
 				Zotero.debug(url + " has an unsupported protocol for feeds");
 			}
 		}
 	};
 	
 	this.init = Zotero.Promise.coroutine(function* () {
 		this.toggleAdvancedOptions(false);
 		
 		data = window.arguments[0];
 		
 		if (data.url) {
 			document.getElementById('feed-url').value = data.url;
 			// Do not allow to change URL for existing feed
 			document.getElementById('feed-url').readOnly = true;
 		} else {
 			this.invalidateURL();
 		}
 		
 		if (data.title) {
 			document.getElementById('feed-title').value = data.title;
 		}
 		
 		let ttl;
 		if (data.ttl !== undefined) {
 			ttl = Math.floor(data.ttl / 60);
 		} else {
 			ttl = Zotero.Prefs.get('feeds.defaultTTL');
 		}
 		document.getElementById('feed-ttl').value = ttl;
 		
 		let cleanupReadAfter = data.cleanupReadAfter;
 		if (cleanupReadAfter === undefined) cleanupReadAfter = Zotero.Prefs.get('feeds.defaultCleanupReadAfter');
 		document.getElementById('feed-cleanupReadAfter').value = cleanupReadAfter;
 		
 		let cleanupUnreadAfter = data.cleanupUnreadAfter;
 		if (cleanupUnreadAfter === undefined) cleanupUnreadAfter = Zotero.Prefs.get('feeds.defaultCleanupUnreadAfter');
 		document.getElementById('feed-cleanupUnreadAfter').value = cleanupUnreadAfter;
 		
 		if (data.url && !data.urlIsValid) {
 			yield this.validateURL();
 		}
 	});
 	
 	this.invalidateURL = function() {
 		urlTainted = true;
 		if (feedReader) {
 			feedReader.terminate();
 			feedReader = null;
 		}
 		
 		if (!urlIsValid) return;
 		
 		urlIsValid = false;
 		document.getElementById('feed-title').disabled = true;
 		document.getElementById('feed-ttl').disabled = true;
 		document.getElementById('feed-cleanupReadAfter').disabled = true;
 		document.getElementById('feed-cleanupUnreadAfter').disabled = true;
 		document.documentElement.getButton('accept').disabled = true;
 	};
 	
 	this.validateURL = Zotero.Promise.coroutine(function* () {
 		if (feedReader) {
 			feedReader.terminate();
 			feedReader = null;
 		}
 		
 		let url = cleanURL(document.getElementById('feed-url').value);
 		urlTainted = false;
 		if (!url) return;
 		
 		try {
 			var fr = feedReader = new Zotero.FeedReader(url);
 			yield fr.process();
 			let feed = fr.feedProperties;
 			// Prevent progress if textbox changes triggered another call to
 			// validateURL / invalidateURL (old session)
 			if (feedReader !== fr || urlTainted) return;
 			
 			let title = document.getElementById('feed-title');
 			if (feed.title && (!data.url || data.unsaved)) {
 				title.value = feed.title;
 			}
 			
 			let ttl = document.getElementById('feed-ttl');
 			if (feed.ttl && (!data.url || data.unsaved)) {
 				ttl.value = Math.floor(feed.ttl / 60) || 1;
 			}
 			
 			document.getElementById('feed-url').value = url;
 			
 			urlIsValid = true;
 			title.disabled = false;
 			ttl.disabled = false;
 			document.getElementById('feed-cleanupReadAfter').disabled = false;
 			document.getElementById('feed-cleanupUnreadAfter').disabled = false;
 			document.documentElement.getButton('accept').disabled = false;
 		}
 		catch (e) {
 			Zotero.debug(e);
 		}
 		finally {
 			if (feedReader === fr) feedReader = null;
 		}
 	});
 	
 	this.accept = function() {
 		data.url = document.getElementById('feed-url').value;
 		data.title = document.getElementById('feed-title').value;
 		data.ttl = document.getElementById('feed-ttl').value * 60;
 		data.cleanupReadAfter = document.getElementById('feed-cleanupReadAfter').value * 1;
 		data.cleanupUnreadAfter = document.getElementById('feed-cleanupUnreadAfter').value * 1;
 		return true;
 	};
 	
 	this.cancel = function() {
 		data.cancelled = true;
 		return true;
 	};
 	
 	/*
 	 * Show/hide advanced options
 	 * @param {Boolean} [show] If set, indicates whether the advanced
 	 *   options should be shown or not. If omitted, the options toggle
 	 */
 	this.toggleAdvancedOptions = function(show) {
 		var opts = document.getElementById("advanced-options-togglable");
 		opts.hidden = show !== undefined ? !show : !opts.hidden;
 		document.getElementById("advanced-options")
 			.setAttribute("state", opts.hidden ? "closed" : "open");
 		window.sizeToContent();
 	};
 }