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gnome-shell/js/gdm/loginDialog.js
Florian Müllner 3b1330880f cleanup: Use Function.prototype.bind() 
When not using arrow notation with anonymous functions, we use Lang.bind()
to bind `this` to named callbacks. However since ES5, this functionality
is already provided by Function.prototype.bind() - in fact, Lang.bind()
itself uses it when no extra arguments are specified. Just use the built-in
function directly where possible, and use arrow notation in the few places
where we pass additional arguments.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
2018-02-21 13:55:02 +00:00

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
/*
* Copyright 2011 Red Hat, Inc
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
const AccountsService = imports.gi.AccountsService;
const Atk = imports.gi.Atk;
const Clutter = imports.gi.Clutter;
const Gdm = imports.gi.Gdm;
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const GObject = imports.gi.GObject;
const Gtk = imports.gi.Gtk;
const Lang = imports.lang;
const Mainloop = imports.mainloop;
const Meta = imports.gi.Meta;
const Pango = imports.gi.Pango;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const St = imports.gi.St;
const AuthPrompt = imports.gdm.authPrompt;
const Batch = imports.gdm.batch;
const BoxPointer = imports.ui.boxpointer;
const CtrlAltTab = imports.ui.ctrlAltTab;
const GdmUtil = imports.gdm.util;
const Layout = imports.ui.layout;
const LoginManager = imports.misc.loginManager;
const Main = imports.ui.main;
const PopupMenu = imports.ui.popupMenu;
const Realmd = imports.gdm.realmd;
const Tweener = imports.ui.tweener;
const UserWidget = imports.ui.userWidget;
const _FADE_ANIMATION_TIME = 0.25;
const _SCROLL_ANIMATION_TIME = 0.5;
const _TIMED_LOGIN_IDLE_THRESHOLD = 5.0;
const _LOGO_ICON_HEIGHT = 48;
const _MAX_BOTTOM_MENU_ITEMS = 5;
var UserListItem = new Lang.Class({
Name: 'UserListItem',
_init(user) {
this.user = user;
this._userChangedId = this.user.connect('changed',
this._onUserChanged.bind(this));
let layout = new St.BoxLayout({ vertical: true });
this.actor = new St.Button({ style_class: 'login-dialog-user-list-item',
button_mask: St.ButtonMask.ONE | St.ButtonMask.THREE,
can_focus: true,
child: layout,
reactive: true,
x_align: St.Align.START,
x_fill: true });
this.actor.connect('destroy', this._onDestroy.bind(this));
this.actor.connect('key-focus-in', () => {
this._setSelected(true);
});
this.actor.connect('key-focus-out', () => {
this._setSelected(false);
});
this.actor.connect('notify::hover', () => {
this._setSelected(this.actor.hover);
});
this._userWidget = new UserWidget.UserWidget(this.user);
layout.add(this._userWidget.actor);
this._userWidget.actor.bind_property('label-actor', this.actor, 'label-actor',
GObject.BindingFlags.SYNC_CREATE);
this._timedLoginIndicator = new St.Bin({ style_class: 'login-dialog-timed-login-indicator',
scale_x: 0 });
layout.add(this._timedLoginIndicator);
this.actor.connect('clicked', this._onClicked.bind(this));
this._onUserChanged();
},
_onUserChanged() {
this._updateLoggedIn();
},
_updateLoggedIn() {
if (this.user.is_logged_in())
this.actor.add_style_pseudo_class('logged-in');
else
this.actor.remove_style_pseudo_class('logged-in');
},
_onDestroy() {
this.user.disconnect(this._userChangedId);
},
_onClicked() {
this.emit('activate');
},
_setSelected(selected) {
if (selected) {
this.actor.add_style_pseudo_class('selected');
this.actor.grab_key_focus();
} else {
this.actor.remove_style_pseudo_class('selected');
}
},
showTimedLoginIndicator(time) {
let hold = new Batch.Hold();
this.hideTimedLoginIndicator();
let startTime = GLib.get_monotonic_time();
this._timedLoginTimeoutId = GLib.timeout_add (GLib.PRIORITY_DEFAULT, 33,
() => {
let currentTime = GLib.get_monotonic_time();
let elapsedTime = (currentTime - startTime) / GLib.USEC_PER_SEC;
this._timedLoginIndicator.scale_x = elapsedTime / time;
if (elapsedTime >= time) {
this._timedLoginTimeoutId = 0;
hold.release();
return GLib.SOURCE_REMOVE;
}
return GLib.SOURCE_CONTINUE;
});
GLib.Source.set_name_by_id(this._timedLoginTimeoutId, '[gnome-shell] this._timedLoginTimeoutId');
return hold;
},
hideTimedLoginIndicator() {
if (this._timedLoginTimeoutId) {
GLib.source_remove(this._timedLoginTimeoutId);
this._timedLoginTimeoutId = 0;
}
this._timedLoginIndicator.scale_x = 0.;
}
});
Signals.addSignalMethods(UserListItem.prototype);
var UserList = new Lang.Class({
Name: 'UserList',
_init() {
this.actor = new St.ScrollView({ style_class: 'login-dialog-user-list-view'});
this.actor.set_policy(Gtk.PolicyType.NEVER,
Gtk.PolicyType.AUTOMATIC);
this._box = new St.BoxLayout({ vertical: true,
style_class: 'login-dialog-user-list',
pseudo_class: 'expanded' });
this.actor.add_actor(this._box);
this._items = {};
this.actor.connect('key-focus-in', this._moveFocusToItems.bind(this));
},
_moveFocusToItems() {
let hasItems = Object.keys(this._items).length > 0;
if (!hasItems)
return;
if (global.stage.get_key_focus() != this.actor)
return;
let focusSet = this.actor.navigate_focus(null, Gtk.DirectionType.TAB_FORWARD, false);
if (!focusSet) {
Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
this._moveFocusToItems();
return false;
});
}
},
_onItemActivated(activatedItem) {
this.emit('activate', activatedItem);
},
updateStyle(isExpanded) {
let tasks = [];
if (isExpanded)
this._box.add_style_pseudo_class('expanded');
else
this._box.remove_style_pseudo_class('expanded');
for (let userName in this._items) {
let item = this._items[userName];
item.actor.sync_hover();
}
},
scrollToItem(item) {
let box = item.actor.get_allocation_box();
let adjustment = this.actor.get_vscroll_bar().get_adjustment();
let value = (box.y1 + adjustment.step_increment / 2.0) - (adjustment.page_size / 2.0);
Tweener.removeTweens(adjustment);
Tweener.addTween (adjustment,
{ value: value,
time: _SCROLL_ANIMATION_TIME,
transition: 'easeOutQuad' });
},
jumpToItem(item) {
let box = item.actor.get_allocation_box();
let adjustment = this.actor.get_vscroll_bar().get_adjustment();
let value = (box.y1 + adjustment.step_increment / 2.0) - (adjustment.page_size / 2.0);
adjustment.set_value(value);
},
getItemFromUserName(userName) {
let item = this._items[userName];
if (!item)
return null;
return item;
},
containsUser(user) {
return this._items[user.get_user_name()] != null;
},
addUser(user) {
if (!user.is_loaded)
return;
if (user.is_system_account())
return;
if (user.locked)
return;
let userName = user.get_user_name();
if (!userName)
return;
this.removeUser(user);
let item = new UserListItem(user);
this._box.add(item.actor, { x_fill: true });
this._items[userName] = item;
item.connect('activate', this._onItemActivated.bind(this));
// Try to keep the focused item front-and-center
item.actor.connect('key-focus-in', () => { this.scrollToItem(item); });
this._moveFocusToItems();
this.emit('item-added', item);
},
removeUser(user) {
if (!user.is_loaded)
return;
let userName = user.get_user_name();
if (!userName)
return;
let item = this._items[userName];
if (!item)
return;
item.actor.destroy();
delete this._items[userName];
},
numItems() {
return Object.keys(this._items).length;
}
});
Signals.addSignalMethods(UserList.prototype);
var SessionMenuButton = new Lang.Class({
Name: 'SessionMenuButton',
_init() {
let gearIcon = new St.Icon({ icon_name: 'emblem-system-symbolic' });
this._button = new St.Button({ style_class: 'login-dialog-session-list-button',
reactive: true,
track_hover: true,
can_focus: true,
accessible_name: _("Choose Session"),
accessible_role: Atk.Role.MENU,
child: gearIcon });
this.actor = new St.Bin({ child: this._button });
let side = St.Side.TOP;
let align = 0;
if (Gdm.get_session_ids().length > _MAX_BOTTOM_MENU_ITEMS) {
if (this.actor.text_direction == Clutter.TextDirection.RTL)
side = St.Side.RIGHT;
else
side = St.Side.LEFT;
align = 0.5;
}
this._menu = new PopupMenu.PopupMenu(this._button, align, side);
Main.uiGroup.add_actor(this._menu.actor);
this._menu.actor.hide();
this._menu.connect('open-state-changed', (menu, isOpen) => {
if (isOpen)
this._button.add_style_pseudo_class('active');
else
this._button.remove_style_pseudo_class('active');
});
this._manager = new PopupMenu.PopupMenuManager({ actor: this._button });
this._manager.addMenu(this._menu);
this._button.connect('clicked', () => { this._menu.toggle(); });
this._items = {};
this._activeSessionId = null;
this._populate();
},
updateSensitivity(sensitive) {
this._button.reactive = sensitive;
this._button.can_focus = sensitive;
this._menu.close(BoxPointer.PopupAnimation.NONE);
},
_updateOrnament() {
let itemIds = Object.keys(this._items);
for (let i = 0; i < itemIds.length; i++) {
if (itemIds[i] == this._activeSessionId)
this._items[itemIds[i]].setOrnament(PopupMenu.Ornament.DOT);
else
this._items[itemIds[i]].setOrnament(PopupMenu.Ornament.NONE);
}
},
setActiveSession(sessionId) {
if (sessionId == this._activeSessionId)
return;
this._activeSessionId = sessionId;
this._updateOrnament();
},
close() {
this._menu.close();
},
_populate() {
let ids = Gdm.get_session_ids();
ids.sort();
if (ids.length <= 1) {
this._button.hide();
return;
}
for (let i = 0; i < ids.length; i++) {
let [sessionName, sessionDescription] = Gdm.get_session_name_and_description(ids[i]);
let id = ids[i];
let item = new PopupMenu.PopupMenuItem(sessionName);
this._menu.addMenuItem(item);
this._items[id] = item;
item.connect('activate', () => {
this.setActiveSession(id);
this.emit('session-activated', this._activeSessionId);
});
}
}
});
Signals.addSignalMethods(SessionMenuButton.prototype);
var LoginDialog = new Lang.Class({
Name: 'LoginDialog',
_init(parentActor) {
this.actor = new Shell.GenericContainer({ style_class: 'login-dialog',
visible: false });
this.actor.get_accessible().set_role(Atk.Role.WINDOW);
this.actor.add_constraint(new Layout.MonitorConstraint({ primary: true }));
this.actor.connect('allocate', this._onAllocate.bind(this));
this.actor.connect('destroy', this._onDestroy.bind(this));
parentActor.add_child(this.actor);
this._userManager = AccountsService.UserManager.get_default()
this._gdmClient = new Gdm.Client();
this._settings = new Gio.Settings({ schema_id: GdmUtil.LOGIN_SCREEN_SCHEMA });
this._settings.connect('changed::' + GdmUtil.BANNER_MESSAGE_KEY,
this._updateBanner.bind(this));
this._settings.connect('changed::' + GdmUtil.BANNER_MESSAGE_TEXT_KEY,
this._updateBanner.bind(this));
this._settings.connect('changed::' + GdmUtil.DISABLE_USER_LIST_KEY,
this._updateDisableUserList.bind(this));
this._settings.connect('changed::' + GdmUtil.LOGO_KEY,
this._updateLogo.bind(this));
this._textureCache = St.TextureCache.get_default();
this._updateLogoTextureId = this._textureCache.connect('texture-file-changed',
this._updateLogoTexture.bind(this));
this._userSelectionBox = new St.BoxLayout({ style_class: 'login-dialog-user-selection-box',
x_align: Clutter.ActorAlign.CENTER,
y_align: Clutter.ActorAlign.CENTER,
vertical: true,
visible: false });
this.actor.add_child(this._userSelectionBox);
this._userList = new UserList();
this._userSelectionBox.add(this._userList.actor,
{ expand: true,
x_fill: true,
y_fill: true });
this._authPrompt = new AuthPrompt.AuthPrompt(this._gdmClient, AuthPrompt.AuthPromptMode.UNLOCK_OR_LOG_IN);
this._authPrompt.connect('prompted', this._onPrompted.bind(this));
this._authPrompt.connect('reset', this._onReset.bind(this));
this._authPrompt.hide();
this.actor.add_child(this._authPrompt.actor);
// translators: this message is shown below the user list on the
// login screen. It can be activated to reveal an entry for
// manually entering the username.
let notListedLabel = new St.Label({ text: _("Not listed?"),
style_class: 'login-dialog-not-listed-label' });
this._notListedButton = new St.Button({ style_class: 'login-dialog-not-listed-button',
button_mask: St.ButtonMask.ONE | St.ButtonMask.THREE,
can_focus: true,
child: notListedLabel,
reactive: true,
x_align: St.Align.START,
x_fill: true });
this._notListedButton.connect('clicked', this._hideUserListAskForUsernameAndBeginVerification.bind(this));
this._notListedButton.hide();
this._userSelectionBox.add(this._notListedButton,
{ expand: false,
x_align: St.Align.START,
x_fill: true });
this._bannerView = new St.ScrollView({ style_class: 'login-dialog-banner-view',
opacity: 0,
vscrollbar_policy: Gtk.PolicyType.AUTOMATIC,
hscrollbar_policy: Gtk.PolicyType.NEVER });
this.actor.add_child(this._bannerView);
let bannerBox = new St.BoxLayout({ vertical: true });
this._bannerView.add_actor(bannerBox);
this._bannerLabel = new St.Label({ style_class: 'login-dialog-banner',
text: '' });
this._bannerLabel.clutter_text.line_wrap = true;
this._bannerLabel.clutter_text.ellipsize = Pango.EllipsizeMode.NONE;
bannerBox.add_child(this._bannerLabel);
this._updateBanner();
this._logoBin = new St.Widget({ style_class: 'login-dialog-logo-bin',
x_align: Clutter.ActorAlign.CENTER,
y_align: Clutter.ActorAlign.END });
this.actor.add_child(this._logoBin);
this._updateLogo();
this._userList.connect('activate', (userList, item) => {
this._onUserListActivated(item);
});
this._sessionMenuButton = new SessionMenuButton();
this._sessionMenuButton.connect('session-activated',
(list, sessionId) => {
this._greeter.call_select_session_sync (sessionId, null);
});
this._sessionMenuButton.actor.opacity = 0;
this._sessionMenuButton.actor.show();
this._authPrompt.addActorToDefaultButtonWell(this._sessionMenuButton.actor);
this._disableUserList = undefined;
this._userListLoaded = false;
this._realmManager = new Realmd.Manager();
this._realmSignalId = this._realmManager.connect('login-format-changed',
this._showRealmLoginHint.bind(this));
LoginManager.getLoginManager().getCurrentSessionProxy(this._gotGreeterSessionProxy.bind(this));
// If the user list is enabled, it should take key focus; make sure the
// screen shield is initialized first to prevent it from stealing the
// focus later
this._startupCompleteId = Main.layoutManager.connect('startup-complete',
this._updateDisableUserList.bind(this));
},
_getBannerAllocation(dialogBox) {
let actorBox = new Clutter.ActorBox();
let [minWidth, minHeight, natWidth, natHeight] = this._bannerView.get_preferred_size();
let centerX = dialogBox.x1 + (dialogBox.x2 - dialogBox.x1) / 2;
actorBox.x1 = Math.floor(centerX - natWidth / 2);
actorBox.y1 = dialogBox.y1 + Main.layoutManager.panelBox.height;
actorBox.x2 = actorBox.x1 + natWidth;
actorBox.y2 = actorBox.y1 + natHeight;
return actorBox;
},
_getLogoBinAllocation(dialogBox) {
let actorBox = new Clutter.ActorBox();
let [minWidth, minHeight, natWidth, natHeight] = this._logoBin.get_preferred_size();
let centerX = dialogBox.x1 + (dialogBox.x2 - dialogBox.x1) / 2;
actorBox.x1 = Math.floor(centerX - natWidth / 2);
actorBox.y1 = dialogBox.y2 - natHeight;
actorBox.x2 = actorBox.x1 + natWidth;
actorBox.y2 = actorBox.y1 + natHeight;
return actorBox;
},
_getCenterActorAllocation(dialogBox, actor) {
let actorBox = new Clutter.ActorBox();
let [minWidth, minHeight, natWidth, natHeight] = actor.get_preferred_size();
let centerX = dialogBox.x1 + (dialogBox.x2 - dialogBox.x1) / 2;
let centerY = dialogBox.y1 + (dialogBox.y2 - dialogBox.y1) / 2;
natWidth = Math.min(natWidth, dialogBox.x2 - dialogBox.x1);
natHeight = Math.min(natHeight, dialogBox.y2 - dialogBox.y1);
actorBox.x1 = Math.floor(centerX - natWidth / 2);
actorBox.y1 = Math.floor(centerY - natHeight / 2);
actorBox.x2 = actorBox.x1 + natWidth;
actorBox.y2 = actorBox.y1 + natHeight;
return actorBox;
},
_onAllocate(actor, dialogBox, flags) {
let dialogWidth = dialogBox.x2 - dialogBox.x1;
let dialogHeight = dialogBox.y2 - dialogBox.y1;
// First find out what space the children require
let bannerAllocation = null;
let bannerHeight = 0;
let bannerWidth = 0;
if (this._bannerView.visible) {
bannerAllocation = this._getBannerAllocation(dialogBox, this._bannerView);
bannerHeight = bannerAllocation.y2 - bannerAllocation.y1;
bannerWidth = bannerAllocation.x2 - bannerAllocation.x1;
}
let authPromptAllocation = null;
let authPromptHeight = 0;
let authPromptWidth = 0;
if (this._authPrompt.actor.visible) {
authPromptAllocation = this._getCenterActorAllocation(dialogBox, this._authPrompt.actor);
authPromptHeight = authPromptAllocation.y2 - authPromptAllocation.y1;
authPromptWidth = authPromptAllocation.x2 - authPromptAllocation.x1;
}
let userSelectionAllocation = null;
let userSelectionHeight = 0;
if (this._userSelectionBox.visible) {
userSelectionAllocation = this._getCenterActorAllocation(dialogBox, this._userSelectionBox);
userSelectionHeight = userSelectionAllocation.y2 - userSelectionAllocation.y1;
}
let logoAllocation = null;
let logoHeight = 0;
if (this._logoBin.visible) {
logoAllocation = this._getLogoBinAllocation(dialogBox);
logoHeight = logoAllocation.y2 - logoAllocation.y1;
}
// Then figure out if we're overly constrained and need to
// try a different layout, or if we have what extra space we
// can hand out
if (bannerAllocation) {
let bannerSpace;
if (authPromptAllocation)
bannerSpace = authPromptAllocation.y1 - bannerAllocation.y1;
else
bannerSpace = 0;
let leftOverYSpace = bannerSpace - bannerHeight;
if (leftOverYSpace > 0) {
// First figure out how much left over space is up top
let leftOverTopSpace = leftOverYSpace / 2;
// Then, shift the banner into the middle of that extra space
let yShift = Math.floor(leftOverTopSpace / 2);
bannerAllocation.y1 += yShift;
bannerAllocation.y2 += yShift;
} else {
// Then figure out how much space there would be if we switched to a
// wide layout with banner on one side and authprompt on the other.
let leftOverXSpace = dialogWidth - authPromptWidth;
// In a wide view, half of the available space goes to the banner,
// and the other half goes to the margins.
let wideBannerWidth = leftOverXSpace / 2;
let wideSpacing = leftOverXSpace - wideBannerWidth;
// If we do go with a wide layout, we need there to be at least enough
// space for the banner and the auth prompt to be the same width,
// so it doesn't look unbalanced.
if (authPromptWidth > 0 && wideBannerWidth > authPromptWidth) {
let centerX = dialogBox.x1 + dialogWidth / 2;
let centerY = dialogBox.y1 + dialogHeight / 2;
// A small portion of the spacing goes down the center of the
// screen to help delimit the two columns of the wide view
let centerGap = wideSpacing / 8;
// place the banner along the left edge of the center margin
bannerAllocation.x2 = Math.floor(centerX - centerGap / 2);
bannerAllocation.x1 = Math.floor(bannerAllocation.x2 - wideBannerWidth);
// figure out how tall it would like to be and try to accomodate
// but don't let it get too close to the logo
let [wideMinHeight, wideBannerHeight] = this._bannerView.get_preferred_height(wideBannerWidth);
let maxWideHeight = dialogHeight - 3 * logoHeight;
wideBannerHeight = Math.min(maxWideHeight, wideBannerHeight);
bannerAllocation.y1 = Math.floor(centerY - wideBannerHeight / 2);
bannerAllocation.y2 = bannerAllocation.y1 + wideBannerHeight;
// place the auth prompt along the right edge of the center margin
authPromptAllocation.x1 = Math.floor(centerX + centerGap / 2);
authPromptAllocation.x2 = authPromptAllocation.x1 + authPromptWidth;
} else {
// If we aren't going to do a wide view, then we need to limit
// the height of the banner so it will present scrollbars
// First figure out how much space there is without the banner
leftOverYSpace += bannerHeight;
// Then figure out how much of that space is up top
let availableTopSpace = Math.floor(leftOverYSpace / 2);
// Then give all of that space to the banner
bannerAllocation.y2 = bannerAllocation.y1 + availableTopSpace;
}
}
} else if (userSelectionAllocation) {
// Grow the user list to fill the space
let leftOverYSpace = dialogHeight - userSelectionHeight - logoHeight;
if (leftOverYSpace > 0) {
let topExpansion = Math.floor(leftOverYSpace / 2);
let bottomExpansion = topExpansion;
userSelectionAllocation.y1 -= topExpansion;
userSelectionAllocation.y2 += bottomExpansion;
}
}
// Finally hand out the allocations
if (bannerAllocation) {
this._bannerView.allocate(bannerAllocation, flags);
}
if (authPromptAllocation)
this._authPrompt.actor.allocate(authPromptAllocation, flags);
if (userSelectionAllocation)
this._userSelectionBox.allocate(userSelectionAllocation, flags);
if (logoAllocation)
this._logoBin.allocate(logoAllocation, flags);
},
_ensureUserListLoaded() {
if (!this._userManager.is_loaded) {
this._userManagerLoadedId = this._userManager.connect('notify::is-loaded',
() => {
if (this._userManager.is_loaded) {
this._loadUserList();
this._userManager.disconnect(this._userManagerLoadedId);
this._userManagerLoadedId = 0;
}
});
} else {
let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, this._loadUserList.bind(this));
GLib.Source.set_name_by_id(id, '[gnome-shell] _loadUserList');
}
},
_updateDisableUserList() {
let disableUserList = this._settings.get_boolean(GdmUtil.DISABLE_USER_LIST_KEY);
// Disable user list when there are no users.
if (this._userListLoaded && this._userList.numItems() == 0)
disableUserList = true;
if (disableUserList != this._disableUserList) {
this._disableUserList = disableUserList;
if (this._authPrompt.verificationStatus == AuthPrompt.AuthPromptStatus.NOT_VERIFYING)
this._authPrompt.reset();
}
},
_updateCancelButton() {
let cancelVisible;
// Hide the cancel button if the user list is disabled and we're asking for
// a username
if (this._authPrompt.verificationStatus == AuthPrompt.AuthPromptStatus.NOT_VERIFYING && this._disableUserList)
cancelVisible = false;
else
cancelVisible = true;
this._authPrompt.cancelButton.visible = cancelVisible;
},
_updateBanner() {
let enabled = this._settings.get_boolean(GdmUtil.BANNER_MESSAGE_KEY);
let text = this._settings.get_string(GdmUtil.BANNER_MESSAGE_TEXT_KEY);
if (enabled && text) {
this._bannerLabel.set_text(text);
this._bannerLabel.show();
} else {
this._bannerLabel.hide();
}
},
_fadeInBannerView() {
this._bannerView.show();
Tweener.addTween(this._bannerView,
{ opacity: 255,
time: _FADE_ANIMATION_TIME,
transition: 'easeOutQuad' });
},
_hideBannerView() {
Tweener.removeTweens(this._bannerView);
this._bannerView.opacity = 0;
this._bannerView.hide();
},
_updateLogoTexture(cache, file) {
if (this._logoFile && !this._logoFile.equal(file))
return;
this._logoBin.destroy_all_children();
if (this._logoFile) {
let scaleFactor = St.ThemeContext.get_for_stage(global.stage).scale_factor;
this._logoBin.add_child(this._textureCache.load_file_async(this._logoFile,
-1, _LOGO_ICON_HEIGHT,
scaleFactor));
}
},
_updateLogo() {
let path = this._settings.get_string(GdmUtil.LOGO_KEY);
this._logoFile = path ? Gio.file_new_for_path(path) : null;
this._updateLogoTexture(this._textureCache, this._logoFile);
},
_onPrompted() {
if (this._shouldShowSessionMenuButton()) {
this._sessionMenuButton.updateSensitivity(true);
this._authPrompt.setActorInDefaultButtonWell(this._sessionMenuButton.actor);
} else {
this._sessionMenuButton.updateSensitivity(false);
}
this._showPrompt();
},
_resetGreeterProxy() {
if (GLib.getenv('GDM_GREETER_TEST') != '1') {
if (this._greeter) {
this._greeter.run_dispose();
}
this._greeter = this._gdmClient.get_greeter_sync(null);
this._defaultSessionChangedId = this._greeter.connect('default-session-name-changed',
this._onDefaultSessionChanged.bind(this));
this._sessionOpenedId = this._greeter.connect('session-opened',
this._onSessionOpened.bind(this));
this._timedLoginRequestedId = this._greeter.connect('timed-login-requested',
this._onTimedLoginRequested.bind(this));
}
},
_onReset(authPrompt, beginRequest) {
this._resetGreeterProxy();
this._sessionMenuButton.updateSensitivity(true);
this._user = null;
if (this._nextSignalId) {
this._authPrompt.disconnect(this._nextSignalId);
this._nextSignalId = 0;
}
if (beginRequest == AuthPrompt.BeginRequestType.PROVIDE_USERNAME) {
if (!this._disableUserList)
this._showUserList();
else
this._hideUserListAskForUsernameAndBeginVerification();
} else {
this._hideUserListAndBeginVerification();
}
},
_onDefaultSessionChanged(client, sessionId) {
this._sessionMenuButton.setActiveSession(sessionId);
},
_shouldShowSessionMenuButton() {
if (this._authPrompt.verificationStatus != AuthPrompt.AuthPromptStatus.VERIFYING &&
this._authPrompt.verificationStatus != AuthPrompt.AuthPromptStatus.VERIFICATION_FAILED)
return false;
if (this._user && this._user.is_loaded && this._user.is_logged_in())
return false;
return true;
},
_showPrompt() {
if (this._authPrompt.actor.visible)
return;
this._authPrompt.actor.opacity = 0;
this._authPrompt.actor.show();
Tweener.addTween(this._authPrompt.actor,
{ opacity: 255,
time: _FADE_ANIMATION_TIME,
transition: 'easeOutQuad' });
this._fadeInBannerView();
},
_showRealmLoginHint(realmManager, hint) {
if (!hint)
return;
hint = hint.replace(/%U/g, 'user');
hint = hint.replace(/%D/g, 'DOMAIN');
hint = hint.replace(/%[^UD]/g, '');
// Translators: this message is shown below the username entry field
// to clue the user in on how to login to the local network realm
this._authPrompt.setMessage(_("(e.g., user or %s)").format(hint), GdmUtil.MessageType.HINT);
},
_askForUsernameAndBeginVerification() {
this._authPrompt.setPasswordChar('');
this._authPrompt.setQuestion(_("Username: "));
this._showRealmLoginHint(this._realmManager.loginFormat);
if (this._nextSignalId)
this._authPrompt.disconnect(this._nextSignalId);
this._nextSignalId = this._authPrompt.connect('next',
() => {
this._authPrompt.disconnect(this._nextSignalId);
this._nextSignalId = 0;
this._authPrompt.updateSensitivity(false);
let answer = this._authPrompt.getAnswer();
this._user = this._userManager.get_user(answer);
this._authPrompt.clear();
this._authPrompt.startSpinning();
this._authPrompt.begin({ userName: answer });
this._updateCancelButton();
});
this._updateCancelButton();
this._sessionMenuButton.updateSensitivity(false);
this._authPrompt.updateSensitivity(true);
this._showPrompt();
},
_loginScreenSessionActivated() {
if (this.actor.opacity == 255 && this._authPrompt.verificationStatus == AuthPrompt.AuthPromptStatus.NOT_VERIFYING)
return;
Tweener.addTween(this.actor,
{ opacity: 255,
time: _FADE_ANIMATION_TIME,
transition: 'easeOutQuad',
onUpdate() {
let children = Main.layoutManager.uiGroup.get_children();
for (let i = 0; i < children.length; i++) {
if (children[i] != Main.layoutManager.screenShieldGroup)
children[i].opacity = this.actor.opacity;
}
},
onUpdateScope: this,
onComplete() {
if (this._authPrompt.verificationStatus != AuthPrompt.AuthPromptStatus.NOT_VERIFYING)
this._authPrompt.reset();
},
onCompleteScope: this });
},
_gotGreeterSessionProxy(proxy) {
this._greeterSessionProxy = proxy;
this._greeterSessionProxyChangedId =
proxy.connect('g-properties-changed', () => {
if (proxy.Active)
this._loginScreenSessionActivated();
});
},
_startSession(serviceName) {
Tweener.addTween(this.actor,
{ opacity: 0,
time: _FADE_ANIMATION_TIME,
transition: 'easeOutQuad',
onUpdate() {
let children = Main.layoutManager.uiGroup.get_children();
for (let i = 0; i < children.length; i++) {
if (children[i] != Main.layoutManager.screenShieldGroup)
children[i].opacity = this.actor.opacity;
}
},
onUpdateScope: this,
onComplete() {
this._greeter.call_start_session_when_ready_sync(serviceName, true, null);
},
onCompleteScope: this });
},
_onSessionOpened(client, serviceName) {
this._authPrompt.finish(() => { this._startSession(serviceName); });
},
_waitForItemForUser(userName) {
let item = this._userList.getItemFromUserName(userName);
if (item)
return null;
let hold = new Batch.Hold();
let signalId = this._userList.connect('item-added',
() => {
let item = this._userList.getItemFromUserName(userName);
if (item)
hold.release();
});
hold.connect('release', () => { this._userList.disconnect(signalId); });
return hold;
},
_showTimedLoginAnimation() {
this._timedLoginItem.actor.grab_key_focus();
return this._timedLoginItem.showTimedLoginIndicator(this._timedLoginAnimationTime);
},
_blockTimedLoginUntilIdle() {
// This blocks timed login from starting until a few
// seconds after the user stops interacting with the
// login screen.
//
// We skip this step if the timed login delay is very
// short.
if ((this._timedLoginDelay - _TIMED_LOGIN_IDLE_THRESHOLD) <= 0)
return null;
let hold = new Batch.Hold();
this._timedLoginIdleTimeOutId = Mainloop.timeout_add_seconds(_TIMED_LOGIN_IDLE_THRESHOLD,
() => {
this._timedLoginAnimationTime -= _TIMED_LOGIN_IDLE_THRESHOLD;
hold.release();
return GLib.SOURCE_REMOVE;
});
GLib.Source.set_name_by_id(this._timedLoginIdleTimeOutId, '[gnome-shell] this._timedLoginAnimationTime');
return hold;
},
_startTimedLogin(userName, delay) {
this._timedLoginItem = null;
this._timedLoginDelay = delay;
this._timedLoginAnimationTime = delay;
let tasks = [() => this._waitForItemForUser(userName),
() => {
this._timedLoginItem = this._userList.getItemFromUserName(userName);
},
() => {
// If we're just starting out, start on the right
// item.
if (!this._userManager.is_loaded) {
this._userList.jumpToItem(this._timedLoginItem);
}
},
this._blockTimedLoginUntilIdle,
() => {
this._userList.scrollToItem(this._timedLoginItem);
},
this._showTimedLoginAnimation,
() => {
this._timedLoginBatch = null;
this._greeter.call_begin_auto_login_sync(userName, null);
}];
this._timedLoginBatch = new Batch.ConsecutiveBatch(this, tasks);
return this._timedLoginBatch.run();
},
_resetTimedLogin() {
if (this._timedLoginBatch) {
this._timedLoginBatch.cancel();
this._timedLoginBatch = null;
}
if (this._timedLoginItem)
this._timedLoginItem.hideTimedLoginIndicator();
let userName = this._timedLoginItem.user.get_user_name();
if (userName)
this._startTimedLogin(userName, this._timedLoginDelay);
},
_onTimedLoginRequested(client, userName, seconds) {
this._startTimedLogin(userName, seconds);
global.stage.connect('captured-event', (actor, event) => {
if (this._timedLoginDelay == undefined)
return Clutter.EVENT_PROPAGATE;
if (event.type() == Clutter.EventType.KEY_PRESS ||
event.type() == Clutter.EventType.BUTTON_PRESS) {
if (this._timedLoginBatch) {
this._timedLoginBatch.cancel();
this._timedLoginBatch = null;
}
} else if (event.type() == Clutter.EventType.KEY_RELEASE ||
event.type() == Clutter.EventType.BUTTON_RELEASE) {
this._resetTimedLogin();
}
return Clutter.EVENT_PROPAGATE;
});
},
_setUserListExpanded(expanded) {
this._userList.updateStyle(expanded);
this._userSelectionBox.visible = expanded;
},
_hideUserList() {
this._setUserListExpanded(false);
if (this._userSelectionBox.visible)
GdmUtil.cloneAndFadeOutActor(this._userSelectionBox);
},
_hideUserListAskForUsernameAndBeginVerification() {
this._hideUserList();
this._askForUsernameAndBeginVerification();
},
_hideUserListAndBeginVerification() {
this._hideUserList();
this._authPrompt.begin();
},
_showUserList() {
this._ensureUserListLoaded();
this._authPrompt.hide();
this._hideBannerView();
this._sessionMenuButton.close();
this._setUserListExpanded(true);
this._notListedButton.show();
this._userList.actor.grab_key_focus();
},
_beginVerificationForItem(item) {
this._authPrompt.setUser(item.user);
let userName = item.user.get_user_name();
let hold = new Batch.Hold();
this._authPrompt.begin({ userName: userName,
hold: hold });
return hold;
},
_onUserListActivated(activatedItem) {
this._user = activatedItem.user;
this._updateCancelButton();
let batch = new Batch.ConcurrentBatch(this, [GdmUtil.cloneAndFadeOutActor(this._userSelectionBox),
this._beginVerificationForItem(activatedItem)]);
batch.run();
},
_onDestroy() {
if (this._userManagerLoadedId) {
this._userManager.disconnect(this._userManagerLoadedId);
this._userManagerLoadedId = 0;
}
if (this._userAddedId) {
this._userManager.disconnect(this._userAddedId);
this._userAddedId = 0;
}
if (this._userRemovedId) {
this._userManager.disconnect(this._userRemovedId);
this._userRemovedId = 0;
}
if (this._userChangedId) {
this._userManager.disconnect(this._userChangedId);
this._userChangedId = 0;
}
this._textureCache.disconnect(this._updateLogoTextureId);
Main.layoutManager.disconnect(this._startupCompleteId);
if (this._settings) {
this._settings.run_dispose();
this._settings = null;
}
if (this._greeter) {
this._greeter.disconnect(this._defaultSessionChangedId);
this._greeter.disconnect(this._sessionOpenedId);
this._greeter.disconnect(this._timedLoginRequestedId);
this._greeter = null;
}
if (this._greeterSessionProxy) {
this._greeterSessionProxy.disconnect(this._greeterSessionProxyChangedId);
this._greeterSessionProxy = null;
}
if (this._realmManager) {
this._realmManager.disconnect(this._realmSignalId);
this._realmSignalId = 0;
this._realmManager.release();
this._realmManager = null;
}
},
_loadUserList() {
if (this._userListLoaded)
return GLib.SOURCE_REMOVE;
this._userListLoaded = true;
let users = this._userManager.list_users();
for (let i = 0; i < users.length; i++) {
this._userList.addUser(users[i]);
}
this._updateDisableUserList();
this._userAddedId = this._userManager.connect('user-added',
(userManager, user) => {
this._userList.addUser(user);
this._updateDisableUserList();
});
this._userRemovedId = this._userManager.connect('user-removed',
(userManager, user) => {
this._userList.removeUser(user);
this._updateDisableUserList();
});
this._userChangedId = this._userManager.connect('user-changed',
(userManager, user) => {
if (this._userList.containsUser(user) && user.locked)
this._userList.removeUser(user);
else if (!this._userList.containsUser(user) && !user.locked)
this._userList.addUser(user);
this._updateDisableUserList();
});
return GLib.SOURCE_REMOVE;
},
open() {
Main.ctrlAltTabManager.addGroup(this.actor,
_("Login Window"),
'dialog-password-symbolic',
{ sortGroup: CtrlAltTab.SortGroup.MIDDLE });
this._userList.actor.grab_key_focus();
this.actor.show();
this.actor.opacity = 0;
Main.pushModal(this.actor, { actionMode: Shell.ActionMode.LOGIN_SCREEN });
Tweener.addTween(this.actor,
{ opacity: 255,
time: 1,
transition: 'easeInQuad' });
return true;
},
close() {
Main.popModal(this.actor);
Main.ctrlAltTabManager.removeGroup(this.actor);
},
cancel() {
this._authPrompt.cancel();
},
addCharacter(unichar) {
// Don't allow type ahead at the login screen
},
finish(onComplete) {
this._authPrompt.finish(onComplete);
},
});
Signals.addSignalMethods(LoginDialog.prototype);
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