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88 lines
2.8 KiB
JavaScript
88 lines
2.8 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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const EXPORTED_SYMBOLS = ["SocialService"];
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const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/SocialProvider.jsm");
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// Internal helper methods and state
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let SocialServiceInternal = {
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enabled: Services.prefs.getBoolPref("social.enabled"),
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get providerArray() {
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return [p for ([, p] of Iterator(this.providers))];
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}
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};
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XPCOMUtils.defineLazyGetter(SocialServiceInternal, "providers", function () {
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// Initialize the service (add a pref observer)
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function prefObserver(subject, topic, data) {
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SocialService._setEnabled(Services.prefs.getBoolPref(data));
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}
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Services.prefs.addObserver("social.enabled", prefObserver, false);
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Services.obs.addObserver(function xpcomShutdown() {
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Services.obs.removeObserver(xpcomShutdown, "xpcom-shutdown");
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Services.prefs.removeObserver("social.enabled", prefObserver);
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}, "xpcom-shutdown", false);
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// Now retrieve the providers
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let providers = {};
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let MANIFEST_PREFS = Services.prefs.getBranch("social.manifest.");
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let prefs = MANIFEST_PREFS.getChildList("", {});
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prefs.forEach(function (pref) {
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try {
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var manifest = JSON.parse(MANIFEST_PREFS.getCharPref(pref));
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if (manifest && typeof(manifest) == "object") {
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let provider = new SocialProvider(manifest, SocialServiceInternal.enabled);
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providers[provider.origin] = provider;
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}
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} catch (err) {
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Cu.reportError("SocialService: failed to load provider: " + pref +
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", exception: " + err);
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}
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});
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return providers;
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});
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function schedule(callback) {
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Services.tm.mainThread.dispatch(callback, Ci.nsIThread.DISPATCH_NORMAL);
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}
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// Public API
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const SocialService = {
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get enabled() {
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return SocialServiceInternal.enabled;
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},
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set enabled(val) {
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let enable = !!val;
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if (enable == SocialServiceInternal.enabled)
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return;
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Services.prefs.setBoolPref("social.enabled", enable);
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this._setEnabled(enable);
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},
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_setEnabled: function _setEnabled(enable) {
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SocialServiceInternal.providerArray.forEach(function (p) p.enabled = enable);
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SocialServiceInternal.enabled = enable;
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},
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// Returns a single provider object with the specified origin.
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getProvider: function getProvider(origin, onDone) {
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schedule((function () {
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onDone(SocialServiceInternal.providers[origin] || null);
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}).bind(this));
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},
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// Returns an array of installed provider origins.
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getProviderList: function getProviderList(onDone) {
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schedule(function () {
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onDone(SocialServiceInternal.providerArray);
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});
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}
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};
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