The Tor Browser / file comparison
comparison: addon-sdk/source/lib/sdk/stylesheet/style.js
addon-sdk/source/lib/sdk/stylesheet/style.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:53b66ef04133 |
|---|---|
| 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 "use strict"; | |
| 5 | |
| 6 module.metadata = { | |
| 7 "stability": "experimental" | |
| 8 }; | |
| 9 | |
| 10 const { Cc, Ci } = require("chrome"); | |
| 11 const { Class } = require("../core/heritage"); | |
| 12 const { ns } = require("../core/namespace"); | |
| 13 const { URL } = require('../url'); | |
| 14 const events = require("../system/events"); | |
| 15 const { loadSheet, removeSheet, isTypeValid } = require("./utils"); | |
| 16 const { isString } = require("../lang/type"); | |
| 17 const { attachTo, detachFrom, getTargetWindow } = require("../content/mod"); | |
| 18 | |
| 19 const { freeze, create } = Object; | |
| 20 const LOCAL_URI_SCHEMES = ['resource', 'data']; | |
| 21 | |
| 22 function isLocalURL(item) { | |
| 23 try { | |
| 24 return LOCAL_URI_SCHEMES.indexOf(URL(item).scheme) > -1; | |
| 25 } | |
| 26 catch(e) {} | |
| 27 | |
| 28 return false; | |
| 29 } | |
| 30 | |
| 31 function Style({ source, uri, type }) { | |
| 32 source = source == null ? null : freeze([].concat(source)); | |
| 33 uri = uri == null ? null : freeze([].concat(uri)); | |
| 34 type = type == null ? "author" : type; | |
| 35 | |
| 36 if (source && !source.every(isString)) | |
| 37 throw new Error('Style.source must be a string or an array of strings.'); | |
| 38 | |
| 39 if (uri && !uri.every(isLocalURL)) | |
| 40 throw new Error('Style.uri must be a local URL or an array of local URLs'); | |
| 41 | |
| 42 if (type && !isTypeValid(type)) | |
| 43 throw new Error('Style.type must be "agent", "user" or "author"'); | |
| 44 | |
| 45 return freeze(create(Style.prototype, { | |
| 46 "source": { value: source, enumerable: true }, | |
| 47 "uri": { value: uri, enumerable: true }, | |
| 48 "type": { value: type, enumerable: true } | |
| 49 })); | |
| 50 }; | |
| 51 | |
| 52 exports.Style = Style; | |
| 53 | |
| 54 attachTo.define(Style, function (style, window) { | |
| 55 if (style.uri) { | |
| 56 for (let uri of style.uri) | |
| 57 loadSheet(window, uri, style.type); | |
| 58 } | |
| 59 | |
| 60 if (style.source) { | |
| 61 let uri = "data:text/css;charset=utf-8,"; | |
| 62 | |
| 63 uri += encodeURIComponent(style.source.join("")); | |
| 64 | |
| 65 loadSheet(window, uri, style.type); | |
| 66 } | |
| 67 }); | |
| 68 | |
| 69 detachFrom.define(Style, function (style, window) { | |
| 70 if (style.uri) | |
| 71 for (let uri of style.uri) | |
| 72 removeSheet(window, uri); | |
| 73 | |
| 74 if (style.source) { | |
| 75 let uri = "data:text/css;charset=utf-8,"; | |
| 76 | |
| 77 uri += encodeURIComponent(style.source.join("")); | |
| 78 | |
| 79 removeSheet(window, uri, style.type); | |
| 80 } | |
| 81 }); |
