// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*- const { AccountsService, Clutter, Cogl, Gio, GLib, GnomeDesktop, GObject, Meta, Shell, St } = imports.gi; const Cairo = imports.cairo; const Signals = imports.signals; const Background = imports.ui.background; const GnomeSession = imports.misc.gnomeSession; const Layout = imports.ui.layout; const OVirt = imports.gdm.oVirt; const LoginManager = imports.misc.loginManager; const Lightbox = imports.ui.lightbox; const Main = imports.ui.main; const Overview = imports.ui.overview; const MessageTray = imports.ui.messageTray; const ShellDBus = imports.ui.shellDBus; const SmartcardManager = imports.misc.smartcardManager; const Params = imports.misc.params; const SCREENSAVER_SCHEMA = 'org.gnome.desktop.screensaver'; const LOCK_ENABLED_KEY = 'lock-enabled'; const LOCK_DELAY_KEY = 'lock-delay'; const LOCKDOWN_SCHEMA = 'org.gnome.desktop.lockdown'; const DISABLE_LOCK_KEY = 'disable-lock-screen'; const LOCKED_STATE_STR = 'screenShield.locked'; const BLUR_BRIGHTNESS = 0.55; const BLUR_RADIUS = 70; // fraction of screen height the arrow must reach before completing // the slide up automatically var ARROW_DRAG_THRESHOLD = 0.1; // Parameters for the arrow animation var N_ARROWS = 3; var ARROW_ANIMATION_TIME = 600; var ARROW_ANIMATION_PEAK_OPACITY = 0.4; var ARROW_IDLE_TIME = 30000; // ms var SUMMARY_ICON_SIZE = 48; // ScreenShield animation time // - STANDARD_FADE_TIME is used when the session goes idle // - MANUAL_FADE_TIME is used for lowering the shield when asked by the user, // or when cancelling the dialog // - CURTAIN_SLIDE_TIME is used when raising the shield before unlocking var STANDARD_FADE_TIME = 10000; var MANUAL_FADE_TIME = 300; var CURTAIN_SLIDE_TIME = 300; var Clock = class { constructor() { this.actor = new St.BoxLayout({ style_class: 'screen-shield-clock', vertical: true }); this._time = new St.Label({ style_class: 'screen-shield-clock-time' }); this._date = new St.Label({ style_class: 'screen-shield-clock-date' }); this.actor.add(this._time, { x_align: St.Align.MIDDLE }); this.actor.add(this._date, { x_align: St.Align.MIDDLE }); this._wallClock = new GnomeDesktop.WallClock({ time_only: true }); this._wallClock.connect('notify::clock', this._updateClock.bind(this)); this._updateClock(); } _updateClock() { this._time.text = this._wallClock.clock; let date = new Date(); /* Translators: This is a time format for a date in long format */ let dateFormat = Shell.util_translate_time_string(N_("%A, %B %d")); this._date.text = date.toLocaleFormat(dateFormat); } destroy() { this.actor.destroy(); this._wallClock.run_dispose(); } }; var NotificationsBox = class { constructor() { this.actor = new St.BoxLayout({ vertical: true, name: 'screenShieldNotifications', style_class: 'screen-shield-notifications-container' }); this._scrollView = new St.ScrollView({ x_fill: false, x_align: St.Align.START, hscrollbar_policy: St.PolicyType.NEVER }); this._notificationBox = new St.BoxLayout({ vertical: true, style_class: 'screen-shield-notifications-container' }); this._scrollView.add_actor(this._notificationBox); this.actor.add(this._scrollView, { x_fill: true, x_align: St.Align.START }); this._sources = new Map(); Main.messageTray.getSources().forEach(source => { this._sourceAdded(Main.messageTray, source, true); }); this._updateVisibility(); this._sourceAddedId = Main.messageTray.connect('source-added', this._sourceAdded.bind(this)); } destroy() { if (this._sourceAddedId) { Main.messageTray.disconnect(this._sourceAddedId); this._sourceAddedId = 0; } let items = this._sources.entries(); for (let [source, obj] of items) { this._removeSource(source, obj); } this.actor.destroy(); } _updateVisibility() { this._notificationBox.visible = this._notificationBox.get_children().some(a => a.visible); this.actor.visible = this._notificationBox.visible; } _makeNotificationCountText(count, isChat) { if (isChat) return ngettext("%d new message", "%d new messages", count).format(count); else return ngettext("%d new notification", "%d new notifications", count).format(count); } _makeNotificationSource(source, box) { let sourceActor = new MessageTray.SourceActor(source, SUMMARY_ICON_SIZE); box.add(sourceActor, { y_fill: true }); let textBox = new St.BoxLayout({ vertical: true }); box.add(textBox, { y_fill: false, y_align: St.Align.START }); let title = new St.Label({ text: source.title, style_class: 'screen-shield-notification-label' }); textBox.add(title); let count = source.unseenCount; let countLabel = new St.Label({ text: this._makeNotificationCountText(count, source.isChat), style_class: 'screen-shield-notification-count-text' }); textBox.add(countLabel); box.visible = count != 0; return [title, countLabel]; } _makeNotificationDetailedSource(source, box) { let sourceActor = new MessageTray.SourceActor(source, SUMMARY_ICON_SIZE); let sourceBin = new St.Bin({ y_align: St.Align.START, x_align: St.Align.START, child: sourceActor }); box.add(sourceBin); let textBox = new St.BoxLayout({ vertical: true }); box.add(textBox, { y_fill: false, y_align: St.Align.START }); let title = new St.Label({ text: source.title, style_class: 'screen-shield-notification-label' }); textBox.add(title); let visible = false; for (let i = 0; i < source.notifications.length; i++) { let n = source.notifications[i]; if (n.acknowledged) continue; let body = ''; if (n.bannerBodyText) { body = n.bannerBodyMarkup ? n.bannerBodyText : GLib.markup_escape_text(n.bannerBodyText, -1); } let label = new St.Label({ style_class: 'screen-shield-notification-count-text' }); label.clutter_text.set_markup('' + n.title + ' ' + body); textBox.add(label); visible = true; } box.visible = visible; return [title, null]; } _shouldShowDetails(source) { return source.policy.detailsInLockScreen || source.narrowestPrivacyScope == MessageTray.PrivacyScope.SYSTEM; } _showSource(source, obj, box) { if (obj.detailed) { [obj.titleLabel, obj.countLabel] = this._makeNotificationDetailedSource(source, box); } else { [obj.titleLabel, obj.countLabel] = this._makeNotificationSource(source, box); } box.visible = obj.visible && (source.unseenCount > 0); } _sourceAdded(tray, source, initial) { let obj = { visible: source.policy.showInLockScreen, detailed: this._shouldShowDetails(source), sourceDestroyId: 0, sourceCountChangedId: 0, sourceTitleChangedId: 0, sourceUpdatedId: 0, sourceBox: null, titleLabel: null, countLabel: null, }; obj.sourceBox = new St.BoxLayout({ style_class: 'screen-shield-notification-source', x_expand: true }); this._showSource(source, obj, obj.sourceBox); this._notificationBox.add(obj.sourceBox, { x_fill: false, x_align: St.Align.START }); obj.sourceCountChangedId = source.connect('count-updated', source => { this._countChanged(source, obj); }); obj.sourceTitleChangedId = source.connect('title-changed', source => { this._titleChanged(source, obj); }); obj.policyChangedId = source.policy.connect('policy-changed', (policy, key) => { if (key == 'show-in-lock-screen') this._visibleChanged(source, obj); else this._detailedChanged(source, obj); }); obj.sourceDestroyId = source.connect('destroy', source => { this._onSourceDestroy(source, obj); }); this._sources.set(source, obj); if (!initial) { // block scrollbars while animating, if they're not needed now let boxHeight = this._notificationBox.height; if (this._scrollView.height >= boxHeight) this._scrollView.vscrollbar_policy = St.PolicyType.NEVER; let widget = obj.sourceBox; let [, natHeight] = widget.get_preferred_height(-1); widget.height = 0; widget.ease({ height: natHeight, mode: Clutter.AnimationMode.EASE_OUT_QUAD, duration: 250, onComplete: () => { this._scrollView.vscrollbar_policy = St.PolicyType.AUTOMATIC; widget.set_height(-1); } }); this._updateVisibility(); if (obj.sourceBox.visible) this.emit('wake-up-screen'); } } _titleChanged(source, obj) { obj.titleLabel.text = source.title; } _countChanged(source, obj) { // A change in the number of notifications may change whether we show // details. let newDetailed = this._shouldShowDetails(source); let oldDetailed = obj.detailed; obj.detailed = newDetailed; if (obj.detailed || oldDetailed != newDetailed) { // A new notification was pushed, or a previous notification was destroyed. // Give up, and build the list again. obj.sourceBox.destroy_all_children(); obj.titleLabel = obj.countLabel = null; this._showSource(source, obj, obj.sourceBox); } else { let count = source.unseenCount; obj.countLabel.text = this._makeNotificationCountText(count, source.isChat); } obj.sourceBox.visible = obj.visible && (source.unseenCount > 0); this._updateVisibility(); if (obj.sourceBox.visible) this.emit('wake-up-screen'); } _visibleChanged(source, obj) { if (obj.visible == source.policy.showInLockScreen) return; obj.visible = source.policy.showInLockScreen; obj.sourceBox.visible = obj.visible && source.unseenCount > 0; this._updateVisibility(); if (obj.sourceBox.visible) this.emit('wake-up-screen'); } _detailedChanged(source, obj) { let newDetailed = this._shouldShowDetails(source); if (obj.detailed == newDetailed) return; obj.detailed = newDetailed; obj.sourceBox.destroy_all_children(); obj.titleLabel = obj.countLabel = null; this._showSource(source, obj, obj.sourceBox); } _onSourceDestroy(source, obj) { this._removeSource(source, obj); this._updateVisibility(); } _removeSource(source, obj) { obj.sourceBox.destroy(); obj.sourceBox = obj.titleLabel = obj.countLabel = null; source.disconnect(obj.sourceDestroyId); source.disconnect(obj.sourceCountChangedId); source.disconnect(obj.sourceTitleChangedId); source.policy.disconnect(obj.policyChangedId); this._sources.delete(source); } }; Signals.addSignalMethods(NotificationsBox.prototype); var Arrow = GObject.registerClass( class ScreenShieldArrow extends St.Bin { _init(params) { super._init(params); this.x_fill = this.y_fill = true; this._drawingArea = new St.DrawingArea(); this._drawingArea.connect('repaint', this._drawArrow.bind(this)); this.child = this._drawingArea; this._shadowHelper = null; this._shadowWidth = this._shadowHeight = 0; } _drawArrow(arrow) { let cr = arrow.get_context(); let [w, h] = arrow.get_surface_size(); let node = this.get_theme_node(); let thickness = node.get_length('-arrow-thickness'); Clutter.cairo_set_source_color(cr, node.get_foreground_color()); cr.setLineCap(Cairo.LineCap.ROUND); cr.setLineWidth(thickness); cr.moveTo(thickness / 2, h - thickness / 2); cr.lineTo(w / 2, thickness); cr.lineTo(w - thickness / 2, h - thickness / 2); cr.stroke(); cr.$dispose(); } vfunc_get_paint_volume(volume) { if (!super.vfunc_get_paint_volume(volume)) return false; if (!this._shadow) return true; let shadowBox = new Clutter.ActorBox(); this._shadow.get_box(this._drawingArea.get_allocation_box(), shadowBox); volume.set_width(Math.max(shadowBox.x2 - shadowBox.x1, volume.get_width())); volume.set_height(Math.max(shadowBox.y2 - shadowBox.y1, volume.get_height())); return true; } vfunc_style_changed() { let node = this.get_theme_node(); this._shadow = node.get_shadow('-arrow-shadow'); if (this._shadow) this._shadowHelper = St.ShadowHelper.new(this._shadow); else this._shadowHelper = null; super.vfunc_style_changed(); } vfunc_paint() { if (this._shadowHelper) { this._shadowHelper.update(this._drawingArea); let allocation = this._drawingArea.get_allocation_box(); let paintOpacity = this._drawingArea.get_paint_opacity(); let framebuffer = Cogl.get_draw_framebuffer(); this._shadowHelper.paint(framebuffer, allocation, paintOpacity); } this._drawingArea.paint(); } }); function clamp(value, min, max) { return Math.max(min, Math.min(max, value)); } /** * If you are setting org.gnome.desktop.session.idle-delay directly in dconf, * rather than through System Settings, you also need to set * org.gnome.settings-daemon.plugins.power.sleep-display-ac and * org.gnome.settings-daemon.plugins.power.sleep-display-battery to the same value. * This will ensure that the screen blanks at the right time when it fades out. * https://bugzilla.gnome.org/show_bug.cgi?id=668703 explains the dependency. */ var ScreenShield = class { constructor() { this.actor = Main.layoutManager.screenShieldGroup; this._lockScreenState = MessageTray.State.HIDDEN; this._lockScreenGroup = new St.Widget({ x_expand: true, y_expand: true, reactive: true, can_focus: true, name: 'lockScreenGroup', visible: false, }); this._lockScreenGroup.connect('key-press-event', this._onLockScreenKeyPress.bind(this)); this._lockScreenGroup.connect('scroll-event', this._onLockScreenScroll.bind(this)); Main.ctrlAltTabManager.addGroup(this._lockScreenGroup, _("Lock"), 'changes-prevent-symbolic'); this._lockScreenContents = new St.Widget({ layout_manager: new Clutter.BinLayout(), name: 'lockScreenContents' }); this._lockScreenContents.add_constraint(new Layout.MonitorConstraint({ primary: true })); this._lockScreenGroup.add_actor(this._lockScreenContents); this._arrowAnimationId = 0; this._arrowWatchId = 0; this._arrowActiveWatchId = 0; this._arrowContainer = new St.BoxLayout({ style_class: 'screen-shield-arrows', vertical: true, x_align: Clutter.ActorAlign.CENTER, y_align: Clutter.ActorAlign.END, // HACK: without these, ClutterBinLayout // ignores alignment properties on the actor x_expand: true, y_expand: true }); for (let i = 0; i < N_ARROWS; i++) { let arrow = new Arrow({ opacity: 0 }); this._arrowContainer.add_actor(arrow); } this._lockScreenContents.add_actor(this._arrowContainer); this._dragAction = new Clutter.GestureAction(); this._dragAction.connect('gesture-begin', this._onDragBegin.bind(this)); this._dragAction.connect('gesture-progress', this._onDragMotion.bind(this)); this._dragAction.connect('gesture-end', this._onDragEnd.bind(this)); this._lockScreenGroup.add_action(this._dragAction); this._lockDialogGroup = new St.Widget({ x_expand: true, y_expand: true, reactive: true, pivot_point: new Clutter.Point({ x: 0.5, y: 0.5 }), name: 'lockDialogGroup' }); this.actor.add_actor(this._lockDialogGroup); this.actor.add_actor(this._lockScreenGroup); this._backgroundGroup = new Clutter.Actor(); this._lockDialogGroup.add_actor(this._backgroundGroup); this._backgroundGroup.lower_bottom(); this._bgManagers = []; this._updateBackgrounds(); Main.layoutManager.connect('monitors-changed', this._updateBackgrounds.bind(this)); this._presence = new GnomeSession.Presence((proxy, error) => { if (error) { logError(error, 'Error while reading gnome-session presence'); return; } this._onStatusChanged(proxy.status); }); this._presence.connectSignal('StatusChanged', (proxy, senderName, [status]) => { this._onStatusChanged(status); }); this._screenSaverDBus = new ShellDBus.ScreenSaverDBus(this); this._smartcardManager = SmartcardManager.getSmartcardManager(); this._smartcardManager.connect('smartcard-inserted', (manager, token) => { if (this._isLocked && token.UsedToLogin) this._liftShield(true, 0); }); this._oVirtCredentialsManager = OVirt.getOVirtCredentialsManager(); this._oVirtCredentialsManager.connect('user-authenticated', () => { if (this._isLocked) this._liftShield(true, 0); }); this._loginManager = LoginManager.getLoginManager(); this._loginManager.connect('prepare-for-sleep', this._prepareForSleep.bind(this)); this._loginSession = null; this._loginManager.getCurrentSessionProxy(sessionProxy => { this._loginSession = sessionProxy; this._loginSession.connectSignal('Lock', () => this.lock(false)); this._loginSession.connectSignal('Unlock', () => this.deactivate(false)); this._loginSession.connect('g-properties-changed', this._syncInhibitor.bind(this)); this._syncInhibitor(); }); this._settings = new Gio.Settings({ schema_id: SCREENSAVER_SCHEMA }); this._settings.connect(`changed::${LOCK_ENABLED_KEY}`, this._syncInhibitor.bind(this)); this._lockSettings = new Gio.Settings({ schema_id: LOCKDOWN_SCHEMA }); this._lockSettings.connect(`changed::${DISABLE_LOCK_KEY}`, this._syncInhibitor.bind(this)); this._isModal = false; this._hasLockScreen = false; this._isGreeter = false; this._isActive = false; this._isLocked = false; this._inUnlockAnimation = false; this._activationTime = 0; this._becameActiveId = 0; this._lockTimeoutId = 0; // The "long" lightbox is used for the longer (20 seconds) fade from session // to idle status, the "short" is used for quickly fading to black when locking // manually this._longLightbox = new Lightbox.Lightbox(Main.uiGroup, { inhibitEvents: true, fadeFactor: 1 }); this._longLightbox.connect('shown', this._onLongLightboxShown.bind(this)); this._shortLightbox = new Lightbox.Lightbox(Main.uiGroup, { inhibitEvents: true, fadeFactor: 1 }); this._shortLightbox.connect('shown', this._onShortLightboxShown.bind(this)); this.idleMonitor = Meta.IdleMonitor.get_core(); this._cursorTracker = Meta.CursorTracker.get_for_display(global.display); this._syncInhibitor(); } _setActive(active) { let prevIsActive = this._isActive; this._isActive = active; if (prevIsActive != this._isActive) this.emit('active-changed'); if (this._loginSession) this._loginSession.SetLockedHintRemote(active); this._syncInhibitor(); } _createBackground(monitorIndex) { let monitor = Main.layoutManager.monitors[monitorIndex]; let widget = new St.Widget({ style_class: 'screen-shield-background', clip_to_allocation: true, x: monitor.x, y: monitor.y, width: monitor.width, height: monitor.height }); let bgManager = new Background.BackgroundManager({ container: widget, monitorIndex: monitorIndex, controlPosition: false, settingsSchema: SCREENSAVER_SCHEMA }); this._bgManagers.push(bgManager); this._backgroundGroup.add_child(widget); widget.add_effect(new Shell.BlurEffect({ blur_radius: BLUR_RADIUS, vertical: true, })); widget.add_effect(new Shell.BlurEffect({ blur_radius: BLUR_RADIUS, brightness: BLUR_BRIGHTNESS, })); } _updateBackgrounds() { let isGreeter = Main.sessionMode.isGreeter; this._backgroundGroup.visible = !isGreeter; for (let i = 0; i < this._bgManagers.length; i++) this._bgManagers[i].destroy(); if (isGreeter) return; this._bgManagers = []; this._backgroundGroup.destroy_all_children(); for (let i = 0; i < Main.layoutManager.monitors.length; i++) this._createBackground(i); } _liftShield(onPrimary, velocity) { if (this._isLocked) { if (this._ensureUnlockDialog(onPrimary, true /* allowCancel */)) this._hideLockScreen(true /* animate */, velocity); } else { this.deactivate(true /* animate */); } } _maybeCancelDialog() { if (!this._dialog) return; this._dialog.cancel(); if (this._isGreeter) { // LoginDialog.cancel() will grab the key focus // on its own, so ensure it stays on lock screen // instead this._lockScreenGroup.grab_key_focus(); } else { this._dialog = null; } } _becomeModal() { if (this._isModal) return true; this._isModal = Main.pushModal(this.actor, { actionMode: Shell.ActionMode.LOCK_SCREEN }); if (this._isModal) return true; // We failed to get a pointer grab, it means that // something else has it. Try with a keyboard grab only this._isModal = Main.pushModal(this.actor, { options: Meta.ModalOptions.POINTER_ALREADY_GRABBED, actionMode: Shell.ActionMode.LOCK_SCREEN }); return this._isModal; } _onLockScreenKeyPress(actor, event) { let symbol = event.get_key_symbol(); let unichar = event.get_key_unicode(); // Do nothing if the lock screen is not fully shown. // This avoids reusing the previous (and stale) unlock // dialog if esc is pressed while the curtain is going // down after cancel. if (this._lockScreenState != MessageTray.State.SHOWN) return Clutter.EVENT_PROPAGATE; let isEnter = (symbol == Clutter.KEY_Return || symbol == Clutter.KEY_KP_Enter || symbol == Clutter.KEY_ISO_Enter); let isEscape = (symbol == Clutter.KEY_Escape); let isLiftChar = (GLib.unichar_isprint(unichar) && (this._isLocked || !GLib.unichar_isgraph(unichar))); if (!isEnter && !isEscape && !isLiftChar) return Clutter.EVENT_PROPAGATE; if (this._isLocked && this._ensureUnlockDialog(true, true) && GLib.unichar_isgraph(unichar)) this._dialog.addCharacter(unichar); this._liftShield(true, 0); return Clutter.EVENT_STOP; } _onLockScreenScroll(actor, event) { if (this._lockScreenState != MessageTray.State.SHOWN) return Clutter.EVENT_PROPAGATE; let delta = 0; if (event.get_scroll_direction() == Clutter.ScrollDirection.SMOOTH) delta = Math.abs(event.get_scroll_delta()[0]); else delta = 5; this._lockScreenScrollCounter += delta; // 7 standard scrolls to lift up if (this._lockScreenScrollCounter > 35) { this._liftShield(true, 0); } return Clutter.EVENT_STOP; } _syncInhibitor() { let lockEnabled = this._settings.get_boolean(LOCK_ENABLED_KEY); let lockLocked = this._lockSettings.get_boolean(DISABLE_LOCK_KEY); let inhibit = (this._loginSession && this._loginSession.Active && !this._isActive && lockEnabled && !lockLocked); if (inhibit) { this._loginManager.inhibit(_("GNOME needs to lock the screen"), inhibitor => { if (this._inhibitor) this._inhibitor.close(null); this._inhibitor = inhibitor; }); } else { if (this._inhibitor) this._inhibitor.close(null); this._inhibitor = null; } } _prepareForSleep(loginManager, aboutToSuspend) { if (aboutToSuspend) { if (this._settings.get_boolean(LOCK_ENABLED_KEY)) this.lock(true); } else { this._wakeUpScreen(); } } _animateArrows() { let arrows = this._arrowContainer.get_children(); let unitaryDelay = ARROW_ANIMATION_TIME / (arrows.length + 1); let maxOpacity = 255 * ARROW_ANIMATION_PEAK_OPACITY; for (let i = 0; i < arrows.length; i++) { arrows[i].opacity = 0; arrows[i].ease({ opacity: maxOpacity, delay: unitaryDelay * (N_ARROWS - (i + 1)), duration: ARROW_ANIMATION_TIME / 2, mode: Clutter.AnimationMode.EASE_OUT_QUAD, onComplete: () => { arrows[i].ease({ opacity: 0, duration: ARROW_ANIMATION_TIME / 2, mode: Clutter.AnimationMode.EASE_IN_QUAD }); } }); } return GLib.SOURCE_CONTINUE; } _onDragBegin() { this._lockScreenGroup.remove_all_transitions(); this._lockScreenState = MessageTray.State.HIDING; if (this._isLocked) this._ensureUnlockDialog(false, false); return true; } _onDragMotion() { let [, origY] = this._dragAction.get_press_coords(0); let [, currentY] = this._dragAction.get_motion_coords(0); let newY = currentY - origY; newY = clamp(newY, -global.stage.height, 0); this._lockScreenGroup.y = newY; return true; } _onDragEnd(_action, _actor, _eventX, _eventY, _modifiers) { if (this._lockScreenState != MessageTray.State.HIDING) return; if (this._lockScreenGroup.y < -(ARROW_DRAG_THRESHOLD * global.stage.height)) { // Complete motion automatically let [velocity_, velocityX_, velocityY] = this._dragAction.get_velocity(0); this._liftShield(true, -velocityY); } else { // restore the lock screen to its original place // try to use the same speed as the normal animation let h = global.stage.height; let duration = MANUAL_FADE_TIME * (-this._lockScreenGroup.y) / h; this._lockScreenGroup.remove_all_transitions(); this._lockScreenGroup.ease({ y: 0, duration, mode: Clutter.AnimationMode.EASE_IN_QUAD, onComplete: () => { this._lockScreenGroup.fixed_position_set = false; this._lockScreenState = MessageTray.State.SHOWN; } }); this._maybeCancelDialog(); } } _onStatusChanged(status) { if (status != GnomeSession.PresenceStatus.IDLE) return; this._maybeCancelDialog(); if (this._longLightbox.actor.visible) { // We're in the process of showing. return; } if (!this._becomeModal()) { // We could not become modal, so we can't activate the // screenshield. The user is probably very upset at this // point, but any application using global grabs is broken // Just tell him to stop using this app // // XXX: another option is to kick the user into the gdm login // screen, where we're not affected by grabs Main.notifyError(_("Unable to lock"), _("Lock was blocked by an application")); return; } if (this._activationTime == 0) this._activationTime = GLib.get_monotonic_time(); let shouldLock = this._settings.get_boolean(LOCK_ENABLED_KEY) && !this._isLocked; if (shouldLock) { let lockTimeout = Math.max( STANDARD_FADE_TIME, this._settings.get_uint(LOCK_DELAY_KEY) * 1000); this._lockTimeoutId = GLib.timeout_add( GLib.PRIORITY_DEFAULT, lockTimeout, () => { this._lockTimeoutId = 0; this.lock(false); return GLib.SOURCE_REMOVE; }); GLib.Source.set_name_by_id(this._lockTimeoutId, '[gnome-shell] this.lock'); } this._activateFade(this._longLightbox, STANDARD_FADE_TIME); } _activateFade(lightbox, time) { Main.uiGroup.set_child_above_sibling(lightbox.actor, null); lightbox.show(time); if (this._becameActiveId == 0) this._becameActiveId = this.idleMonitor.add_user_active_watch(this._onUserBecameActive.bind(this)); } _onUserBecameActive() { // This function gets called here when the user becomes active // after we activated a lightbox // There are two possibilities here: // - we're called when already locked/active; isLocked or isActive is true, // we just go back to the lock screen curtain // (isActive == isLocked == true: normal case // isActive == false, isLocked == true: during the fade for manual locking // isActive == true, isLocked == false: after session idle, before lock-delay) // - we're called because the session is IDLE but before the lightbox // is fully shown; at this point isActive is false, so we just hide // the lightbox, reset the activationTime and go back to the unlocked // desktop // using deactivate() is a little of overkill, but it ensures we // don't forget of some bit like modal, DBus properties or idle watches // // Note: if the (long) lightbox is shown then we're necessarily // active, because we call activate() without animation. this.idleMonitor.remove_watch(this._becameActiveId); this._becameActiveId = 0; if (this._isActive || this._isLocked) { this._longLightbox.hide(); this._shortLightbox.hide(); } else { this.deactivate(false); } } _onLongLightboxShown() { this.activate(false); } _onShortLightboxShown() { this._completeLockScreenShown(); } showDialog() { if (!this._becomeModal()) { // In the login screen, this is a hard error. Fail-whale log('Could not acquire modal grab for the login screen. Aborting login process.'); Meta.quit(Meta.ExitCode.ERROR); } this.actor.show(); this._isGreeter = Main.sessionMode.isGreeter; this._isLocked = true; if (this._ensureUnlockDialog(true, true)) this._hideLockScreen(false, 0); } _hideLockScreenComplete() { if (Main.sessionMode.currentMode == 'lock-screen') Main.sessionMode.popMode('lock-screen'); this._lockScreenState = MessageTray.State.HIDDEN; this._lockScreenGroup.hide(); if (this._dialog) { this._dialog.grab_key_focus(); this._dialog.navigate_focus(null, St.DirectionType.TAB_FORWARD, false); } } _hideLockScreen(animate, velocity) { if (this._lockScreenState == MessageTray.State.HIDDEN) return; this._lockScreenState = MessageTray.State.HIDING; this._lockScreenGroup.remove_all_transitions(); if (animate) { // Tween the lock screen out of screen // if velocity is not specified (i.e. we come here from pressing ESC), // use the same speed regardless of original position // if velocity is specified, it's in pixels per milliseconds let h = global.stage.height; let delta = (h + this._lockScreenGroup.y); let minVelocity = global.stage.height / CURTAIN_SLIDE_TIME; velocity = Math.max(minVelocity, velocity); let duration = delta / velocity; this._lockScreenGroup.ease({ y: -h, duration, mode: Clutter.AnimationMode.EASE_IN_QUAD, onComplete: () => this._hideLockScreenComplete() }); } else { this._hideLockScreenComplete(); } this._cursorTracker.set_pointer_visible(true); } _ensureUnlockDialog(onPrimary, allowCancel) { if (!this._dialog) { let constructor = Main.sessionMode.unlockDialog; if (!constructor) { // This session mode has no locking capabilities this.deactivate(true); return false; } this._dialog = new constructor(this._lockDialogGroup); let time = global.get_current_time(); if (!this._dialog.open(time, onPrimary)) { // This is kind of an impossible error: we're already modal // by the time we reach this... log('Could not open login dialog: failed to acquire grab'); this.deactivate(true); return false; } this._dialog.connect('failed', this._onUnlockFailed.bind(this)); } this._dialog.allowCancel = allowCancel; return true; } _onUnlockFailed() { this._resetLockScreen({ animateLockScreen: true, fadeToBlack: false }); } _resetLockScreen(params) { // Don't reset the lock screen unless it is completely hidden // This prevents the shield going down if the lock-delay timeout // fires while the user is dragging (which has the potential // to confuse our state) if (this._lockScreenState != MessageTray.State.HIDDEN) return; this._ensureLockScreen(); this._lockDialogGroup.scale_x = 1; this._lockDialogGroup.scale_y = 1; this._lockScreenGroup.show(); this._lockScreenState = MessageTray.State.SHOWING; let fadeToBlack = params.fadeToBlack; if (params.animateLockScreen) { this._lockScreenGroup.y = -global.screen_height; this._lockScreenGroup.remove_all_transitions(); this._lockScreenGroup.ease({ y: 0, duration: MANUAL_FADE_TIME, mode: Clutter.AnimationMode.EASE_OUT_QUAD, onComplete: () => { this._lockScreenShown({ fadeToBlack, animateFade: true }); } }); } else { this._lockScreenGroup.fixed_position_set = false; this._lockScreenShown({ fadeToBlack: fadeToBlack, animateFade: false }); } this._lockScreenGroup.grab_key_focus(); if (Main.sessionMode.currentMode != 'lock-screen') Main.sessionMode.pushMode('lock-screen'); } _startArrowAnimation() { this._arrowActiveWatchId = 0; if (!this._arrowAnimationId) { this._arrowAnimationId = GLib.timeout_add(GLib.PRIORITY_DEFAULT, 6000, this._animateArrows.bind(this)); GLib.Source.set_name_by_id(this._arrowAnimationId, '[gnome-shell] this._animateArrows'); this._animateArrows(); } if (!this._arrowWatchId) this._arrowWatchId = this.idleMonitor.add_idle_watch(ARROW_IDLE_TIME, this._pauseArrowAnimation.bind(this)); } _pauseArrowAnimation() { if (this._arrowAnimationId) { GLib.source_remove(this._arrowAnimationId); this._arrowAnimationId = 0; } if (!this._arrowActiveWatchId) this._arrowActiveWatchId = this.idleMonitor.add_user_active_watch(this._startArrowAnimation.bind(this)); } _stopArrowAnimation() { if (this._arrowAnimationId) { GLib.source_remove(this._arrowAnimationId); this._arrowAnimationId = 0; } if (this._arrowActiveWatchId) { this.idleMonitor.remove_watch(this._arrowActiveWatchId); this._arrowActiveWatchId = 0; } if (this._arrowWatchId) { this.idleMonitor.remove_watch(this._arrowWatchId); this._arrowWatchId = 0; } } _checkArrowAnimation() { let idleTime = this.idleMonitor.get_idletime(); if (idleTime < ARROW_IDLE_TIME) this._startArrowAnimation(); else this._pauseArrowAnimation(); } _lockScreenShown(params) { if (this._dialog && !this._isGreeter) { this._dialog.destroy(); this._dialog = null; } this._checkArrowAnimation(); let motionId = global.stage.connect('captured-event', (stage, event) => { if (event.type() == Clutter.EventType.MOTION) { this._cursorTracker.set_pointer_visible(true); global.stage.disconnect(motionId); } return Clutter.EVENT_PROPAGATE; }); this._cursorTracker.set_pointer_visible(false); this._lockScreenState = MessageTray.State.SHOWN; this._lockScreenGroup.fixed_position_set = false; this._lockScreenScrollCounter = 0; if (params.fadeToBlack && params.animateFade) { // Take a beat let id = GLib.timeout_add(GLib.PRIORITY_DEFAULT, MANUAL_FADE_TIME, () => { this._activateFade(this._shortLightbox, MANUAL_FADE_TIME); return GLib.SOURCE_REMOVE; }); GLib.Source.set_name_by_id(id, '[gnome-shell] this._activateFade'); } else { if (params.fadeToBlack) this._activateFade(this._shortLightbox, 0); this._completeLockScreenShown(); } } _completeLockScreenShown() { this._setActive(true); this.emit('lock-screen-shown'); } // Some of the actors in the lock screen are heavy in // resources, so we only create them when needed _ensureLockScreen() { if (this._hasLockScreen) return; this._lockScreenContentsBox = new St.BoxLayout({ x_align: Clutter.ActorAlign.CENTER, y_align: Clutter.ActorAlign.CENTER, x_expand: true, y_expand: true, vertical: true, style_class: 'screen-shield-contents-box' }); this._clock = new Clock(); this._lockScreenContentsBox.add(this._clock.actor, { x_fill: true, y_fill: true }); this._lockScreenContents.add_actor(this._lockScreenContentsBox); this._notificationsBox = new NotificationsBox(); this._wakeUpScreenId = this._notificationsBox.connect('wake-up-screen', this._wakeUpScreen.bind(this)); this._lockScreenContentsBox.add(this._notificationsBox.actor, { x_fill: true, y_fill: true, expand: true }); this._hasLockScreen = true; } _wakeUpScreen() { this._onUserBecameActive(); this.emit('wake-up-screen'); } _clearLockScreen() { this._clock.destroy(); this._clock = null; if (this._notificationsBox) { this._notificationsBox.disconnect(this._wakeUpScreenId); this._notificationsBox.destroy(); this._notificationsBox = null; } this._stopArrowAnimation(); this._lockScreenContentsBox.destroy(); this._hasLockScreen = false; } get locked() { return this._isLocked; } get active() { return this._isActive; } get activationTime() { return this._activationTime; } deactivate(animate) { if (this._dialog) this._dialog.finish(() => this._continueDeactivate(animate)); else this._continueDeactivate(animate); } _continueDeactivate(animate) { this._hideLockScreen(animate, 0); if (this._hasLockScreen) this._clearLockScreen(); if (Main.sessionMode.currentMode == 'lock-screen') Main.sessionMode.popMode('lock-screen'); if (Main.sessionMode.currentMode == 'unlock-dialog') Main.sessionMode.popMode('unlock-dialog'); if (this._isGreeter) { // We don't want to "deactivate" any more than // this. In particular, we don't want to drop // the modal, hide ourselves or destroy the dialog // But we do want to set isActive to false, so that // gnome-session will reset the idle counter, and // gnome-settings-daemon will stop blanking the screen this._activationTime = 0; this._setActive(false); return; } if (this._dialog && !this._isGreeter) this._dialog.popModal(); if (this._isModal) { Main.popModal(this.actor); this._isModal = false; } this._lockDialogGroup.ease({ scale_x: 0, scale_y: 0, duration: animate ? Overview.ANIMATION_TIME : 0, mode: Clutter.AnimationMode.EASE_OUT_QUAD, onComplete: () => this._completeDeactivate() }); } _completeDeactivate() { if (this._dialog) { this._dialog.destroy(); this._dialog = null; } this._longLightbox.hide(); this._shortLightbox.hide(); this.actor.hide(); if (this._becameActiveId != 0) { this.idleMonitor.remove_watch(this._becameActiveId); this._becameActiveId = 0; } if (this._lockTimeoutId != 0) { GLib.source_remove(this._lockTimeoutId); this._lockTimeoutId = 0; } this._activationTime = 0; this._setActive(false); this._isLocked = false; this.emit('locked-changed'); global.set_runtime_state(LOCKED_STATE_STR, null); } activate(animate) { if (this._activationTime == 0) this._activationTime = GLib.get_monotonic_time(); this.actor.show(); if (Main.sessionMode.currentMode != 'unlock-dialog' && Main.sessionMode.currentMode != 'lock-screen') { this._isGreeter = Main.sessionMode.isGreeter; if (!this._isGreeter) Main.sessionMode.pushMode('unlock-dialog'); } this._resetLockScreen({ animateLockScreen: animate, fadeToBlack: true }); // On wayland, a crash brings down the entire session, so we don't // need to defend against being restarted unlocked if (!Meta.is_wayland_compositor()) global.set_runtime_state(LOCKED_STATE_STR, GLib.Variant.new('b', true)); // We used to set isActive and emit active-changed here, // but now we do that from lockScreenShown, which means // there is a 0.3 seconds window during which the lock // screen is effectively visible and the screen is locked, but // the DBus interface reports the screensaver is off. // This is because when we emit ActiveChanged(true), // gnome-settings-daemon blanks the screen, and we don't want // blank during the animation. // This is not a problem for the idle fade case, because we // activate without animation in that case. } lock(animate) { if (this._lockSettings.get_boolean(DISABLE_LOCK_KEY)) { log('Screen lock is locked down, not locking'); // lock, lock - who's there? return; } // Warn the user if we can't become modal if (!this._becomeModal()) { Main.notifyError(_("Unable to lock"), _("Lock was blocked by an application")); return; } // Clear the clipboard - otherwise, its contents may be leaked // to unauthorized parties by pasting into the unlock dialog's // password entry and unmasking the entry St.Clipboard.get_default().set_text(St.ClipboardType.CLIPBOARD, ''); St.Clipboard.get_default().set_text(St.ClipboardType.PRIMARY, ''); let userManager = AccountsService.UserManager.get_default(); let user = userManager.get_user(GLib.get_user_name()); if (this._isGreeter) this._isLocked = true; else this._isLocked = user.password_mode != AccountsService.UserPasswordMode.NONE; this.activate(animate); this.emit('locked-changed'); } // If the previous shell crashed, and gnome-session restarted us, then re-lock lockIfWasLocked() { if (!this._settings.get_boolean(LOCK_ENABLED_KEY)) return; let wasLocked = global.get_runtime_state('b', LOCKED_STATE_STR); if (wasLocked === null) return; Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => { this.lock(false); return GLib.SOURCE_REMOVE; }); } }; Signals.addSignalMethods(ScreenShield.prototype);