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Diffstat (limited to 'browser/components/syncedtabs/EventEmitter.jsm')
-rw-r--r-- | browser/components/syncedtabs/EventEmitter.jsm | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/browser/components/syncedtabs/EventEmitter.jsm b/browser/components/syncedtabs/EventEmitter.jsm deleted file mode 100644 index ec3225f0f..000000000 --- a/browser/components/syncedtabs/EventEmitter.jsm +++ /dev/null @@ -1,45 +0,0 @@ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -"use strict"; - -const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components; - -this.EXPORTED_SYMBOLS = [ - "EventEmitter" -]; - -// Simple event emitter abstraction for storage objects to use. -function EventEmitter () { - this._events = new Map(); -} - -EventEmitter.prototype = { - on(event, listener) { - if (this._events.has(event)) { - this._events.get(event).add(listener); - } else { - this._events.set(event, new Set([listener])); - } - }, - off(event, listener) { - if (!this._events.has(event)) { - return; - } - this._events.get(event).delete(listener); - }, - emit(event, ...args) { - if (!this._events.has(event)) { - return; - } - for (let listener of this._events.get(event).values()) { - try { - listener.apply(this, args); - } catch (e) { - Cu.reportError(e); - } - } - }, -}; - |