89 lines
2.2 KiB
JavaScript
89 lines
2.2 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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this.EXPORTED_SYMBOLS = ["Adapters"];
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Components.utils.import("resource://gre/modules/Services.jsm");
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Components.utils.import("resource://gre/modules/CloudSyncEventSource.jsm");
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this.Adapters = function () {
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let eventTypes = [
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"sync",
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];
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let suspended = true;
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let suspend = function () {
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if (!suspended) {
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Services.obs.removeObserver(observer, "cloudsync:user-sync", false);
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suspended = true;
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}
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}.bind(this);
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let resume = function () {
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if (suspended) {
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Services.obs.addObserver(observer, "cloudsync:user-sync", false);
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suspended = false;
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}
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}.bind(this);
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let eventSource = new EventSource(eventTypes, suspend, resume);
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let registeredAdapters = new Map();
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function register (name, opts) {
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opts = opts || {};
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registeredAdapters.set(name, opts);
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}
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function unregister (name) {
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if (!registeredAdapters.has(name)) {
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throw new Error("adapter is not registered: " + name)
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}
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registeredAdapters.delete(name);
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}
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function getAdapterNames () {
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let result = [];
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for (let name of registeredAdapters.keys()) {
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result.push(name);
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}
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return result;
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}
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function getAdapter (name) {
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if (!registeredAdapters.has(name)) {
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throw new Error("adapter is not registered: " + name)
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}
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return registeredAdapters.get(name);
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}
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function countAdapters () {
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return registeredAdapters.size;
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}
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let observer = {
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observe: function (subject, topic, data) {
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switch (topic) {
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case "cloudsync:user-sync":
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eventSource.emit("sync");
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break;
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}
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}
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};
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this.addEventListener = eventSource.addEventListener;
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this.removeEventListener = eventSource.removeEventListener;
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this.register = register.bind(this);
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this.get = getAdapter.bind(this);
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this.unregister = unregister.bind(this);
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this.__defineGetter__("names", getAdapterNames);
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this.__defineGetter__("count", countAdapters);
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};
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Adapters.prototype = {
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};
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