a88e59c1a8
Introduce a new class, EventEmitter, which implements signal handling for pure JavaScript classes. EventEmitter still utilizes GJS' addSignalMethods internally. EventEmitter allows static typechecking to understand the structure of event-emitting JS classes and makes creating child classes simpler. The name 'EventEmitter' mirrors a common name for this pattern in Node and in JS libraries. Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2043>
111 lines
3.2 KiB
JavaScript
111 lines
3.2 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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/* exported Manager */
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const Gio = imports.gi.Gio;
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const Signals = imports.misc.signals;
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const { loadInterfaceXML } = imports.misc.fileUtils;
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const ProviderIface = loadInterfaceXML("org.freedesktop.realmd.Provider");
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const Provider = Gio.DBusProxy.makeProxyWrapper(ProviderIface);
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const ServiceIface = loadInterfaceXML("org.freedesktop.realmd.Service");
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const Service = Gio.DBusProxy.makeProxyWrapper(ServiceIface);
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const RealmIface = loadInterfaceXML("org.freedesktop.realmd.Realm");
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const Realm = Gio.DBusProxy.makeProxyWrapper(RealmIface);
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var Manager = class extends Signals.EventEmitter {
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constructor() {
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super();
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this._aggregateProvider = Provider(Gio.DBus.system,
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'org.freedesktop.realmd',
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'/org/freedesktop/realmd',
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this._reloadRealms.bind(this));
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this._realms = {};
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this._loginFormat = null;
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this._aggregateProvider.connectObject('g-properties-changed',
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(proxy, properties) => {
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if ('Realms' in properties.deep_unpack())
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this._reloadRealms();
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}, this);
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}
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_reloadRealms() {
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let realmPaths = this._aggregateProvider.Realms;
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if (!realmPaths)
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return;
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for (let i = 0; i < realmPaths.length; i++) {
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Realm(Gio.DBus.system,
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'org.freedesktop.realmd',
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realmPaths[i],
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this._onRealmLoaded.bind(this));
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}
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}
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_reloadRealm(realm) {
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if (!realm.Configured) {
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if (this._realms[realm.get_object_path()])
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delete this._realms[realm.get_object_path()];
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return;
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}
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this._realms[realm.get_object_path()] = realm;
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this._updateLoginFormat();
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}
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_onRealmLoaded(realm, error) {
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if (error)
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return;
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this._reloadRealm(realm);
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realm.connect('g-properties-changed', (proxy, properties) => {
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if ('Configured' in properties.deep_unpack())
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this._reloadRealm(realm);
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});
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}
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_updateLoginFormat() {
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let newLoginFormat;
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for (let realmPath in this._realms) {
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let realm = this._realms[realmPath];
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if (realm.LoginFormats && realm.LoginFormats.length > 0) {
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newLoginFormat = realm.LoginFormats[0];
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break;
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}
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}
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if (this._loginFormat != newLoginFormat) {
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this._loginFormat = newLoginFormat;
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this.emit('login-format-changed', newLoginFormat);
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}
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}
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get loginFormat() {
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if (this._loginFormat)
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return this._loginFormat;
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this._updateLoginFormat();
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return this._loginFormat;
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}
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release() {
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Service(Gio.DBus.system,
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'org.freedesktop.realmd',
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'/org/freedesktop/realmd',
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service => service.ReleaseRemote());
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this._aggregateProvider.disconnectObject(this);
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this._realms = { };
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this._updateLoginFormat();
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}
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};
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