The Tor Browser / file comparison
comparison: addon-sdk/source/lib/sdk/content/mod.js
addon-sdk/source/lib/sdk/content/mod.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:47dd448a2462 |
|---|---|
| 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 { Ci } = require("chrome"); | |
| 11 const method = require("../../method/core"); | |
| 12 const { add, remove, iterator } = require("../lang/weak-set"); | |
| 13 | |
| 14 let getTargetWindow = method("getTargetWindow"); | |
| 15 | |
| 16 getTargetWindow.define(function (target) { | |
| 17 if (target instanceof Ci.nsIDOMWindow) | |
| 18 return target; | |
| 19 if (target instanceof Ci.nsIDOMDocument) | |
| 20 return target.defaultView || null; | |
| 21 | |
| 22 return null; | |
| 23 }); | |
| 24 | |
| 25 exports.getTargetWindow = getTargetWindow; | |
| 26 | |
| 27 let attachTo = method("attachTo"); | |
| 28 exports.attachTo = attachTo; | |
| 29 | |
| 30 let detachFrom = method("detatchFrom"); | |
| 31 exports.detachFrom = detachFrom; | |
| 32 | |
| 33 function attach(modification, target) { | |
| 34 if (!modification) | |
| 35 return; | |
| 36 | |
| 37 let window = getTargetWindow(target); | |
| 38 | |
| 39 attachTo(modification, window); | |
| 40 | |
| 41 // modification are stored per content; `window` reference can still be the | |
| 42 // same even if the content is changed, therefore `document` is used instead. | |
| 43 add(modification, window.document); | |
| 44 } | |
| 45 exports.attach = attach; | |
| 46 | |
| 47 function detach(modification, target) { | |
| 48 if (!modification) | |
| 49 return; | |
| 50 | |
| 51 if (target) { | |
| 52 let window = getTargetWindow(target); | |
| 53 detachFrom(modification, window); | |
| 54 remove(modification, window.document); | |
| 55 } | |
| 56 else { | |
| 57 let documents = iterator(modification); | |
| 58 for (let document of documents) { | |
| 59 detachFrom(modification, document.defaultView); | |
| 60 remove(modification, document); | |
| 61 } | |
| 62 } | |
| 63 } | |
| 64 exports.detach = detach; |
