1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/addon-sdk/source/lib/sdk/places/favicon.js Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,48 @@ 1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public 1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this 1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 1.7 + 1.8 +"use strict"; 1.9 + 1.10 +module.metadata = { 1.11 + "stability": "unstable", 1.12 + "engines": { 1.13 + "Firefox": "*" 1.14 + } 1.15 +}; 1.16 + 1.17 +const { Cc, Ci, Cu } = require("chrome"); 1.18 +const { defer, reject } = require("../core/promise"); 1.19 +const FaviconService = Cc["@mozilla.org/browser/favicon-service;1"]. 1.20 + getService(Ci.nsIFaviconService); 1.21 +const AsyncFavicons = FaviconService.QueryInterface(Ci.mozIAsyncFavicons); 1.22 +const { isValidURI } = require("../url"); 1.23 +const { newURI, getURL } = require("../url/utils"); 1.24 + 1.25 +/** 1.26 + * Takes an object of several possible types and 1.27 + * returns a promise that resolves to the page's favicon URI. 1.28 + * @param {String|Tab} object 1.29 + * @param {Function} (callback) 1.30 + * @returns {Promise} 1.31 + */ 1.32 + 1.33 +function getFavicon (object, callback) { 1.34 + let url = getURL(object); 1.35 + let deferred = defer(); 1.36 + 1.37 + if (url && isValidURI(url)) { 1.38 + AsyncFavicons.getFaviconURLForPage(newURI(url), function (aURI) { 1.39 + if (aURI && aURI.spec) 1.40 + deferred.resolve(aURI.spec.toString()); 1.41 + else 1.42 + deferred.reject(null); 1.43 + }); 1.44 + } else { 1.45 + deferred.reject(null); 1.46 + } 1.47 + 1.48 + if (callback) deferred.promise.then(callback, callback); 1.49 + return deferred.promise; 1.50 +} 1.51 +exports.getFavicon = getFavicon;