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gnome-shell/js/gdm/loginDialog.js
Ray Strode e1d9bdbbd6 loginDialog: only emit session-activated on user action 
Right now we emit session-activated any time the bullet
moves in the session menu. That includes at startup when
picking an item arbitrarily, and any time GDM reports the
session was read from the user's account settings.

session-activated informs GDM about the newly selected session,
so emitting it in response to GDM reporting a session is a
bad idea.

This commit changes the code to only emit session-activated when
the user explicitly activates a session item from the gear menu.

Note, we no longer set the active session explicitly at start up.
This is a good thing since the item we were picking wasn't
necessarily correct.  It does means if GDM fails to inform us
about the correct default session we'll now show no bullet instead
of a bullet on the wrong item.

https://bugzilla.gnome.org/show_bug.cgi?id=740142
2018-02-20 10:27:08 -05:00

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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: function(user) {
this.user = user;
this._userChangedId = this.user.connect('changed',
Lang.bind(this, this._onUserChanged));
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',
Lang.bind(this, this._onDestroy));
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', Lang.bind(this, this._onClicked));
this._onUserChanged();
},
_onUserChanged: function() {
this._updateLoggedIn();
},
_updateLoggedIn: function() {
if (this.user.is_logged_in())
this.actor.add_style_pseudo_class('logged-in');
else
this.actor.remove_style_pseudo_class('logged-in');
},
_onDestroy: function() {
this.user.disconnect(this._userChangedId);
},
_onClicked: function() {
this.emit('activate');
},
_setSelected: function(selected) {
if (selected) {
this.actor.add_style_pseudo_class('selected');
this.actor.grab_key_focus();
} else {
this.actor.remove_style_pseudo_class('selected');
}
},
showTimedLoginIndicator: function(time) {
let hold = new Batch.Hold();
this.hideTimedLoginIndicator();
let startTime = GLib.get_monotonic_time();
this._timedLoginTimeoutId = GLib.timeout_add (GLib.PRIORITY_DEFAULT,
33,
Lang.bind(this, function() {
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: function() {
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: function() {
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', Lang.bind(this, this._moveFocusToItems));
},
_moveFocusToItems: function() {
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, Lang.bind(this, function() {
this._moveFocusToItems();
return false;
}));
}
},
_onItemActivated: function(activatedItem) {
this.emit('activate', activatedItem);
},
updateStyle: function(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: function(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: function(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: function(userName) {
let item = this._items[userName];
if (!item)
return null;
return item;
},
containsUser: function(user) {
return this._items[user.get_user_name()] != null;
},
addUser: function(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',
Lang.bind(this, this._onItemActivated));
// Try to keep the focused item front-and-center
item.actor.connect('key-focus-in',
Lang.bind(this,
function() {
this.scrollToItem(item);
}));
this._moveFocusToItems();
this.emit('item-added', item);
},
removeUser: function(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: function() {
return Object.keys(this._items).length;
}
});
Signals.addSignalMethods(UserList.prototype);
var SessionMenuButton = new Lang.Class({
Name: 'SessionMenuButton',
_init: function() {
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',
Lang.bind(this, function(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', Lang.bind(this, function() {
this._menu.toggle();
}));
this._items = {};
this._activeSessionId = null;
this._populate();
},
updateSensitivity: function(sensitive) {
this._button.reactive = sensitive;
this._button.can_focus = sensitive;
this._menu.close(BoxPointer.PopupAnimation.NONE);
},
_updateOrnament: function() {
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: function(sessionId) {
if (sessionId == this._activeSessionId)
return;
this._activeSessionId = sessionId;
this._updateOrnament();
},
close: function() {
this._menu.close();
},
_populate: function() {
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', Lang.bind(this, function() {
this.setActiveSession(id);
this.emit('session-activated', this._activeSessionId);
}));
}
}
});
Signals.addSignalMethods(SessionMenuButton.prototype);
var LoginDialog = new Lang.Class({
Name: 'LoginDialog',
_init: function(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', Lang.bind(this, this._onAllocate));
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
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,
Lang.bind(this, this._updateBanner));
this._settings.connect('changed::' + GdmUtil.BANNER_MESSAGE_TEXT_KEY,
Lang.bind(this, this._updateBanner));
this._settings.connect('changed::' + GdmUtil.DISABLE_USER_LIST_KEY,
Lang.bind(this, this._updateDisableUserList));
this._settings.connect('changed::' + GdmUtil.LOGO_KEY,
Lang.bind(this, this._updateLogo));
this._textureCache = St.TextureCache.get_default();
this._updateLogoTextureId = this._textureCache.connect('texture-file-changed',
Lang.bind(this, this._updateLogoTexture));
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', Lang.bind(this, this._onPrompted));
this._authPrompt.connect('reset', Lang.bind(this, this._onReset));
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', Lang.bind(this, this._hideUserListAskForUsernameAndBeginVerification));
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',
Lang.bind(this, function(userList, item) {
this._onUserListActivated(item);
}));
this._sessionMenuButton = new SessionMenuButton();
this._sessionMenuButton.connect('session-activated',
Lang.bind(this, function(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',
Lang.bind(this, this._showRealmLoginHint));
LoginManager.getLoginManager().getCurrentSessionProxy(Lang.bind(this, this._gotGreeterSessionProxy));
// 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',
Lang.bind(this, this._updateDisableUserList));
},
_getBannerAllocation: function (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: function (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: function (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: function (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: function() {
if (!this._userManager.is_loaded) {
this._userManagerLoadedId = this._userManager.connect('notify::is-loaded',
Lang.bind(this, function() {
if (this._userManager.is_loaded) {
this._loadUserList();
this._userManager.disconnect(this._userManagerLoadedId);
this._userManagerLoadedId = 0;
}
}));
} else {
let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, Lang.bind(this, this._loadUserList));
GLib.Source.set_name_by_id(id, '[gnome-shell] _loadUserList');
}
},
_updateDisableUserList: function() {
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: function() {
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: function() {
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: function() {
this._bannerView.show();
Tweener.addTween(this._bannerView,
{ opacity: 255,
time: _FADE_ANIMATION_TIME,
transition: 'easeOutQuad' });
},
_hideBannerView: function() {
Tweener.removeTweens(this._bannerView);
this._bannerView.opacity = 0;
this._bannerView.hide();
},
_updateLogoTexture: function(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: function() {
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: function() {
if (this._shouldShowSessionMenuButton()) {
this._sessionMenuButton.updateSensitivity(true);
this._authPrompt.setActorInDefaultButtonWell(this._sessionMenuButton.actor);
} else {
this._sessionMenuButton.updateSensitivity(false);
}
this._showPrompt();
},
_resetGreeterProxy: function() {
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',
Lang.bind(this, this._onDefaultSessionChanged));
this._sessionOpenedId = this._greeter.connect('session-opened',
Lang.bind(this, this._onSessionOpened));
this._timedLoginRequestedId = this._greeter.connect('timed-login-requested',
Lang.bind(this, this._onTimedLoginRequested));
}
},
_onReset: function(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: function(client, sessionId) {
this._sessionMenuButton.setActiveSession(sessionId);
},
_shouldShowSessionMenuButton: function() {
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: function() {
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: function(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: function() {
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',
Lang.bind(this, function() {
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: function() {
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: function() {
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: function() {
if (this._authPrompt.verificationStatus != AuthPrompt.AuthPromptStatus.NOT_VERIFYING)
this._authPrompt.reset();
},
onCompleteScope: this });
},
_gotGreeterSessionProxy: function(proxy) {
this._greeterSessionProxy = proxy;
this._greeterSessionProxyChangedId =
proxy.connect('g-properties-changed', Lang.bind(this, function() {
if (proxy.Active)
this._loginScreenSessionActivated();
}));
},
_startSession: function(serviceName) {
Tweener.addTween(this.actor,
{ opacity: 0,
time: _FADE_ANIMATION_TIME,
transition: 'easeOutQuad',
onUpdate: function() {
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: function() {
this._greeter.call_start_session_when_ready_sync(serviceName, true, null);
},
onCompleteScope: this });
},
_onSessionOpened: function(client, serviceName) {
this._authPrompt.finish(Lang.bind(this, function() {
this._startSession(serviceName);
}));
},
_waitForItemForUser: function(userName) {
let item = this._userList.getItemFromUserName(userName);
if (item)
return null;
let hold = new Batch.Hold();
let signalId = this._userList.connect('item-added',
Lang.bind(this, function() {
let item = this._userList.getItemFromUserName(userName);
if (item)
hold.release();
}));
hold.connect('release', Lang.bind(this, function() {
this._userList.disconnect(signalId);
}));
return hold;
},
_showTimedLoginAnimation: function() {
this._timedLoginItem.actor.grab_key_focus();
return this._timedLoginItem.showTimedLoginIndicator(this._timedLoginAnimationTime);
},
_blockTimedLoginUntilIdle: function() {
// 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,
function() {
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: function(userName, delay) {
this._timedLoginItem = null;
this._timedLoginDelay = delay;
this._timedLoginAnimationTime = delay;
let tasks = [function() {
return this._waitForItemForUser(userName);
},
function() {
this._timedLoginItem = this._userList.getItemFromUserName(userName);
},
function() {
// If we're just starting out, start on the right
// item.
if (!this._userManager.is_loaded) {
this._userList.jumpToItem(this._timedLoginItem);
}
},
this._blockTimedLoginUntilIdle,
function() {
this._userList.scrollToItem(this._timedLoginItem);
},
this._showTimedLoginAnimation,
function() {
this._timedLoginBatch = null;
this._greeter.call_begin_auto_login_sync(userName, null);
}];
this._timedLoginBatch = new Batch.ConsecutiveBatch(this, tasks);
return this._timedLoginBatch.run();
},
_resetTimedLogin: function() {
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: function(client, userName, seconds) {
this._startTimedLogin(userName, seconds);
global.stage.connect('captured-event',
Lang.bind(this, function(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: function(expanded) {
this._userList.updateStyle(expanded);
this._userSelectionBox.visible = expanded;
},
_hideUserList: function() {
this._setUserListExpanded(false);
if (this._userSelectionBox.visible)
GdmUtil.cloneAndFadeOutActor(this._userSelectionBox);
},
_hideUserListAskForUsernameAndBeginVerification: function() {
this._hideUserList();
this._askForUsernameAndBeginVerification();
},
_hideUserListAndBeginVerification: function() {
this._hideUserList();
this._authPrompt.begin();
},
_showUserList: function() {
this._ensureUserListLoaded();
this._authPrompt.hide();
this._hideBannerView();
this._sessionMenuButton.close();
this._setUserListExpanded(true);
this._notListedButton.show();
this._userList.actor.grab_key_focus();
},
_beginVerificationForItem: function(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: function(activatedItem) {
this._user = activatedItem.user;
this._updateCancelButton();
let batch = new Batch.ConcurrentBatch(this, [GdmUtil.cloneAndFadeOutActor(this._userSelectionBox),
this._beginVerificationForItem(activatedItem)]);
batch.run();
},
_onDestroy: function() {
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: function() {
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',
Lang.bind(this, function(userManager, user) {
this._userList.addUser(user);
this._updateDisableUserList();
}));
this._userRemovedId = this._userManager.connect('user-removed',
Lang.bind(this, function(userManager, user) {
this._userList.removeUser(user);
this._updateDisableUserList();
}));
this._userChangedId = this._userManager.connect('user-changed',
Lang.bind(this, function(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: function() {
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: function() {
Main.popModal(this.actor);
Main.ctrlAltTabManager.removeGroup(this.actor);
},
cancel: function() {
this._authPrompt.cancel();
},
addCharacter: function(unichar) {
// Don't allow type ahead at the login screen
},
finish: function(onComplete) {
this._authPrompt.finish(onComplete);
},
});
Signals.addSignalMethods(LoginDialog.prototype);
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