91 lines
3.6 KiB
JavaScript
91 lines
3.6 KiB
JavaScript
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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const Clutter = imports.gi.Clutter;
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const Gio = imports.gi.Gio;
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const Lang = imports.lang;
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const Meta = imports.gi.Meta;
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const St = imports.gi.St;
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const GnomeSession = imports.misc.gnomeSession;
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const Lightbox = imports.ui.lightbox;
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const LoginDialog = imports.gdm.loginDialog;
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const Main = imports.ui.main;
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const SCREENSAVER_SCHEMA = 'org.gnome.desktop.screensaver';
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const LOCK_ENABLED_KEY = 'lock-enabled';
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/**
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* To test screen shield, make sure to kill gnome-screensaver.
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*
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* If you are setting org.gnome.desktop.session.idle-delay directly in dconf,
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* rather than through System Settings, you also need to set
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* org.gnome.settings-daemon.plugins.power.sleep-display-ac and
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* org.gnome.settings-daemon.plugins.power.sleep-display-battery to the same value.
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* This will ensure that the screen blanks at the right time when it fades out.
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* https://bugzilla.gnome.org/show_bug.cgi?id=668703 explains the dependance.
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*/
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const ScreenShield = new Lang.Class({
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Name: 'ScreenShield',
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_init: function() {
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this._presence = new GnomeSession.Presence(Lang.bind(this, function(proxy, error) {
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this._onStatusChanged(proxy.status);
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}));
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this._presence.connectSignal('StatusChanged', Lang.bind(this, function(proxy, senderName, [status]) {
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this._onStatusChanged(status);
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}));
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this._settings = new Gio.Settings({ schema: SCREENSAVER_SCHEMA });
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this._group = new St.Widget({ x: 0,
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y: 0 });
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Main.uiGroup.add_actor(this._group);
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let constraint = new Clutter.BindConstraint({ source: global.stage,
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coordinate: Clutter.BindCoordinate.POSITION | Clutter.BindCoordinate.SIZE });
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this._group.add_constraint(constraint);
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this._group.connect('key-press-event', Lang.bind(this, this._onKeyPressEvent));
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this._group.connect('button-press-event', Lang.bind(this, this._onButtonPressEvent));
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this._lightbox = new Lightbox.Lightbox(this._group,
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{ inhibitEvents: true, fadeInTime: 10, fadeFactor: 1 });
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this._background = Meta.BackgroundActor.new_for_screen(global.screen);
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this._background.hide();
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Main.uiGroup.add_actor(this._background);
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},
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_onStatusChanged: function(status) {
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log ("in _onStatusChanged");
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if (status == GnomeSession.PresenceStatus.IDLE) {
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log("session gone idle");
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this._group.reactive = true;
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Main.pushModal(this._group);
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this._lightbox.show();
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} else {
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let lightboxWasShown = this._lightbox.shown;
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this._lightbox.hide();
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if (lightboxWasShown && this._settings.get_boolean(LOCK_ENABLED_KEY)) {
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this._background.show();
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this._background.raise_top();
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} else {
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this._popModal();
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}
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}
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},
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_popModal: function() {
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this._group.reactive = false;
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if (Main.isInModalStack(this._group))
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Main.popModal(this._group);
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this._background.hide();
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},
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_onKeyPressEvent: function(object, keyPressEvent) {
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log("in _onKeyPressEvent - lock is enabled: " + this._settings.get_boolean(LOCK_ENABLED_KEY));
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this._popModal();
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},
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_onButtonPressEvent: function(object, buttonPressEvent) {
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log("in _onButtonPressEvent - lock is enabled: " + this._settings.get_boolean(LOCK_ENABLED_KEY));
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this._popModal();
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},
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});
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