The Tor Browser / file comparison
comparison: addon-sdk/source/lib/sdk/io/data.js
addon-sdk/source/lib/sdk/io/data.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:605c85cd9d59 |
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 "use strict"; | |
| 6 | |
| 7 module.metadata = { | |
| 8 "stability": "unstable" | |
| 9 }; | |
| 10 | |
| 11 const { Cc, Ci, Cu } = require("chrome"); | |
| 12 const base64 = require("../base64"); | |
| 13 const IOService = Cc["@mozilla.org/network/io-service;1"]. | |
| 14 getService(Ci.nsIIOService); | |
| 15 | |
| 16 const { deprecateFunction } = require('../util/deprecate'); | |
| 17 const { NetUtil } = Cu.import("resource://gre/modules/NetUtil.jsm"); | |
| 18 const FaviconService = Cc["@mozilla.org/browser/favicon-service;1"]. | |
| 19 getService(Ci.nsIFaviconService); | |
| 20 | |
| 21 const PNG_B64 = "data:image/png;base64,"; | |
| 22 const DEF_FAVICON_URI = "chrome://mozapps/skin/places/defaultFavicon.png"; | |
| 23 let DEF_FAVICON = null; | |
| 24 | |
| 25 /** | |
| 26 * Takes URI of the page and returns associated favicon URI. | |
| 27 * If page under passed uri has no favicon then base64 encoded data URI of | |
| 28 * default faveicon is returned. | |
| 29 * @param {String} uri | |
| 30 * @returns {String} | |
| 31 */ | |
| 32 function getFaviconURIForLocation(uri) { | |
| 33 let pageURI = NetUtil.newURI(uri); | |
| 34 try { | |
| 35 return FaviconService.getFaviconDataAsDataURL( | |
| 36 FaviconService.getFaviconForPage(pageURI)); | |
| 37 } | |
| 38 catch(e) { | |
| 39 if (!DEF_FAVICON) { | |
| 40 DEF_FAVICON = PNG_B64 + | |
| 41 base64.encode(getChromeURIContent(DEF_FAVICON_URI)); | |
| 42 } | |
| 43 return DEF_FAVICON; | |
| 44 } | |
| 45 } | |
| 46 exports.getFaviconURIForLocation = getFaviconURIForLocation; | |
| 47 | |
| 48 /** | |
| 49 * Takes chrome URI and returns content under that URI. | |
| 50 * @param {String} chromeURI | |
| 51 * @returns {String} | |
| 52 */ | |
| 53 function getChromeURIContent(chromeURI) { | |
| 54 let channel = IOService.newChannel(chromeURI, null, null); | |
| 55 let input = channel.open(); | |
| 56 let stream = Cc["@mozilla.org/binaryinputstream;1"]. | |
| 57 createInstance(Ci.nsIBinaryInputStream); | |
| 58 stream.setInputStream(input); | |
| 59 let content = stream.readBytes(input.available()); | |
| 60 stream.close(); | |
| 61 input.close(); | |
| 62 return content; | |
| 63 } | |
| 64 exports.getChromeURIContent = deprecateFunction(getChromeURIContent, | |
| 65 'getChromeURIContent is deprecated, ' + | |
| 66 'please use require("sdk/net/url").readURI instead.' | |
| 67 ); | |
| 68 | |
| 69 /** | |
| 70 * Creates a base-64 encoded ASCII string from a string of binary data. | |
| 71 */ | |
| 72 exports.base64Encode = deprecateFunction(base64.encode, | |
| 73 'base64Encode is deprecated, ' + | |
| 74 'please use require("sdk/base64").encode instead.' | |
| 75 ); | |
| 76 /** | |
| 77 * Decodes a string of data which has been encoded using base-64 encoding. | |
| 78 */ | |
| 79 exports.base64Decode = deprecateFunction(base64.decode, | |
| 80 'base64Dencode is deprecated, ' + | |
| 81 'please use require("sdk/base64").decode instead.' | |
| 82 ); |
