The Tor Browser / file comparison
comparison: browser/devtools/styleeditor/utils.js
browser/devtools/styleeditor/utils.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:05b816ea78da |
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| 1 /* -*- Mode: Javascript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 const {Cc, Ci, Cu, Cr} = require("chrome"); | |
| 8 | |
| 9 Cu.import("resource://gre/modules/Services.jsm"); | |
| 10 Cu.import("resource://gre/modules/devtools/event-emitter.js"); | |
| 11 | |
| 12 exports.PREF_ORIG_SOURCES = "devtools.styleeditor.source-maps-enabled"; | |
| 13 | |
| 14 /** | |
| 15 * A PreferenceObserver observes a pref branch for pref changes. | |
| 16 * It emits an event for each preference change. | |
| 17 */ | |
| 18 function PrefObserver(branchName) { | |
| 19 this.branchName = branchName; | |
| 20 this.branch = Services.prefs.getBranch(branchName); | |
| 21 this.branch.addObserver("", this, false); | |
| 22 | |
| 23 EventEmitter.decorate(this); | |
| 24 } | |
| 25 | |
| 26 exports.PrefObserver = PrefObserver; | |
| 27 | |
| 28 PrefObserver.prototype = { | |
| 29 observe: function(subject, topic, data) { | |
| 30 if (topic == "nsPref:changed") { | |
| 31 this.emit(this.branchName + data); | |
| 32 } | |
| 33 }, | |
| 34 | |
| 35 destroy: function() { | |
| 36 if (this.branch) { | |
| 37 this.branch.removeObserver('', this); | |
| 38 } | |
| 39 } | |
| 40 }; |
