443c8347ea
The "locate pointer" functionality was implemented in gnome settings daemon using X11 protocols and would fail when run under Wayland. With Wayland, there is no global coordinate space exposed to the clients so this functionality cannot be implemented as a separate program. Instead, add the "locate pointer" functionality in gnome-shell so that it works in both X11 and Wayland. https://gitlab.gnome.org/GNOME/gnome-shell/issues/981 https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/413 https://gitlab.gnome.org/GNOME/mutter/merge_requests/453 https://gitlab.gnome.org/GNOME/gsettings-desktop-schemas/merge_requests/19 https://gitlab.gnome.org/GNOME/gnome-settings-daemon/merge_requests/86
724 lines
24 KiB
JavaScript
724 lines
24 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
|
|
|
|
const { Clutter, Gio, GLib, GObject, Meta, Shell, St } = imports.gi;
|
|
const Mainloop = imports.mainloop;
|
|
|
|
const AccessDialog = imports.ui.accessDialog;
|
|
const AudioDeviceSelection = imports.ui.audioDeviceSelection;
|
|
const Components = imports.ui.components;
|
|
const CtrlAltTab = imports.ui.ctrlAltTab;
|
|
const EndSessionDialog = imports.ui.endSessionDialog;
|
|
const ExtensionSystem = imports.ui.extensionSystem;
|
|
const ExtensionDownloader = imports.ui.extensionDownloader;
|
|
const InputMethod = imports.misc.inputMethod;
|
|
const Introspect = imports.misc.introspect;
|
|
const Keyboard = imports.ui.keyboard;
|
|
const MessageTray = imports.ui.messageTray;
|
|
const ModalDialog = imports.ui.modalDialog;
|
|
const OsdWindow = imports.ui.osdWindow;
|
|
const OsdMonitorLabeler = imports.ui.osdMonitorLabeler;
|
|
const Overview = imports.ui.overview;
|
|
const PadOsd = imports.ui.padOsd;
|
|
const Panel = imports.ui.panel;
|
|
const Params = imports.misc.params;
|
|
const RunDialog = imports.ui.runDialog;
|
|
const Layout = imports.ui.layout;
|
|
const LoginManager = imports.misc.loginManager;
|
|
const LookingGlass = imports.ui.lookingGlass;
|
|
const NotificationDaemon = imports.ui.notificationDaemon;
|
|
const WindowAttentionHandler = imports.ui.windowAttentionHandler;
|
|
const Screencast = imports.ui.screencast;
|
|
const ScreenShield = imports.ui.screenShield;
|
|
const Scripting = imports.ui.scripting;
|
|
const SessionMode = imports.ui.sessionMode;
|
|
const ShellDBus = imports.ui.shellDBus;
|
|
const ShellMountOperation = imports.ui.shellMountOperation;
|
|
const WindowManager = imports.ui.windowManager;
|
|
const Magnifier = imports.ui.magnifier;
|
|
const XdndHandler = imports.ui.xdndHandler;
|
|
const KbdA11yDialog = imports.ui.kbdA11yDialog;
|
|
const LocatePointer = imports.ui.locatePointer;
|
|
|
|
const A11Y_SCHEMA = 'org.gnome.desktop.a11y.keyboard';
|
|
const STICKY_KEYS_ENABLE = 'stickykeys-enable';
|
|
const GNOMESHELL_STARTED_MESSAGE_ID = 'f3ea493c22934e26811cd62abe8e203a';
|
|
|
|
var componentManager = null;
|
|
var panel = null;
|
|
var overview = null;
|
|
var runDialog = null;
|
|
var lookingGlass = null;
|
|
var wm = null;
|
|
var messageTray = null;
|
|
var screenShield = null;
|
|
var notificationDaemon = null;
|
|
var windowAttentionHandler = null;
|
|
var ctrlAltTabManager = null;
|
|
var padOsdService = null;
|
|
var osdWindowManager = null;
|
|
var osdMonitorLabeler = null;
|
|
var sessionMode = null;
|
|
var shellAccessDialogDBusService = null;
|
|
var shellAudioSelectionDBusService = null;
|
|
var shellDBusService = null;
|
|
var shellMountOpDBusService = null;
|
|
var screenSaverDBus = null;
|
|
var screencastService = null;
|
|
var modalCount = 0;
|
|
var actionMode = Shell.ActionMode.NONE;
|
|
var modalActorFocusStack = [];
|
|
var uiGroup = null;
|
|
var magnifier = null;
|
|
var xdndHandler = null;
|
|
var keyboard = null;
|
|
var layoutManager = null;
|
|
var kbdA11yDialog = null;
|
|
var inputMethod = null;
|
|
var introspectService = null;
|
|
var locatePointer = null;
|
|
let _startDate;
|
|
let _defaultCssStylesheet = null;
|
|
let _cssStylesheet = null;
|
|
let _a11ySettings = null;
|
|
let _themeResource = null;
|
|
let _oskResource = null;
|
|
|
|
function _sessionUpdated() {
|
|
if (sessionMode.isPrimary)
|
|
_loadDefaultStylesheet();
|
|
|
|
wm.setCustomKeybindingHandler('panel-main-menu',
|
|
Shell.ActionMode.NORMAL |
|
|
Shell.ActionMode.OVERVIEW,
|
|
sessionMode.hasOverview ? overview.toggle.bind(overview) : null);
|
|
wm.allowKeybinding('overlay-key', Shell.ActionMode.NORMAL |
|
|
Shell.ActionMode.OVERVIEW);
|
|
|
|
wm.allowKeybinding('locate-pointer-key', Shell.ActionMode.ALL);
|
|
|
|
wm.setCustomKeybindingHandler('panel-run-dialog',
|
|
Shell.ActionMode.NORMAL |
|
|
Shell.ActionMode.OVERVIEW,
|
|
sessionMode.hasRunDialog ? openRunDialog : null);
|
|
|
|
if (!sessionMode.hasRunDialog) {
|
|
if (runDialog)
|
|
runDialog.close();
|
|
if (lookingGlass)
|
|
lookingGlass.close();
|
|
}
|
|
}
|
|
|
|
function start() {
|
|
// These are here so we don't break compatibility.
|
|
global.logError = window.log;
|
|
global.log = window.log;
|
|
|
|
// Chain up async errors reported from C
|
|
global.connect('notify-error', (global, msg, detail) => {
|
|
notifyError(msg, detail);
|
|
});
|
|
|
|
Gio.DesktopAppInfo.set_desktop_env('GNOME');
|
|
|
|
sessionMode = new SessionMode.SessionMode();
|
|
sessionMode.connect('updated', _sessionUpdated);
|
|
|
|
St.Settings.get().connect('notify::gtk-theme', _loadDefaultStylesheet);
|
|
_initializeUI();
|
|
|
|
shellAccessDialogDBusService = new AccessDialog.AccessDialogDBus();
|
|
shellAudioSelectionDBusService = new AudioDeviceSelection.AudioDeviceSelectionDBus();
|
|
shellDBusService = new ShellDBus.GnomeShell();
|
|
shellMountOpDBusService = new ShellMountOperation.GnomeShellMountOpHandler();
|
|
|
|
_sessionUpdated();
|
|
}
|
|
|
|
function _initializeUI() {
|
|
// Ensure ShellWindowTracker and ShellAppUsage are initialized; this will
|
|
// also initialize ShellAppSystem first. ShellAppSystem
|
|
// needs to load all the .desktop files, and ShellWindowTracker
|
|
// will use those to associate with windows. Right now
|
|
// the Monitor doesn't listen for installed app changes
|
|
// and recalculate application associations, so to avoid
|
|
// races for now we initialize it here. It's better to
|
|
// be predictable anyways.
|
|
Shell.WindowTracker.get_default();
|
|
Shell.AppUsage.get_default();
|
|
|
|
reloadThemeResource();
|
|
_loadOskLayouts();
|
|
_loadDefaultStylesheet();
|
|
|
|
// Setup the stage hierarchy early
|
|
layoutManager = new Layout.LayoutManager();
|
|
|
|
// Various parts of the codebase still refers to Main.uiGroup
|
|
// instead using the layoutManager. This keeps that code
|
|
// working until it's updated.
|
|
uiGroup = layoutManager.uiGroup;
|
|
|
|
padOsdService = new PadOsd.PadOsdService();
|
|
screencastService = new Screencast.ScreencastService();
|
|
xdndHandler = new XdndHandler.XdndHandler();
|
|
ctrlAltTabManager = new CtrlAltTab.CtrlAltTabManager();
|
|
osdWindowManager = new OsdWindow.OsdWindowManager();
|
|
osdMonitorLabeler = new OsdMonitorLabeler.OsdMonitorLabeler();
|
|
overview = new Overview.Overview();
|
|
kbdA11yDialog = new KbdA11yDialog.KbdA11yDialog();
|
|
wm = new WindowManager.WindowManager();
|
|
magnifier = new Magnifier.Magnifier();
|
|
locatePointer = new LocatePointer.locatePointer();
|
|
|
|
if (LoginManager.canLock())
|
|
screenShield = new ScreenShield.ScreenShield();
|
|
|
|
inputMethod = new InputMethod.InputMethod();
|
|
Clutter.get_default_backend().set_input_method(inputMethod);
|
|
|
|
messageTray = new MessageTray.MessageTray();
|
|
panel = new Panel.Panel();
|
|
keyboard = new Keyboard.Keyboard();
|
|
notificationDaemon = new NotificationDaemon.NotificationDaemon();
|
|
windowAttentionHandler = new WindowAttentionHandler.WindowAttentionHandler();
|
|
componentManager = new Components.ComponentManager();
|
|
|
|
introspectService = new Introspect.IntrospectService();
|
|
|
|
layoutManager.init();
|
|
overview.init();
|
|
|
|
_a11ySettings = new Gio.Settings({ schema_id: A11Y_SCHEMA });
|
|
|
|
global.display.connect('overlay-key', () => {
|
|
if (!_a11ySettings.get_boolean (STICKY_KEYS_ENABLE))
|
|
overview.toggle();
|
|
});
|
|
|
|
global.connect('locate-pointer', () => {
|
|
locatePointer.show();
|
|
});
|
|
|
|
global.display.connect('show-restart-message', (display, message) => {
|
|
showRestartMessage(message);
|
|
return true;
|
|
});
|
|
|
|
global.display.connect('restart', () => {
|
|
global.reexec_self();
|
|
return true;
|
|
});
|
|
|
|
global.display.connect('gl-video-memory-purged', loadTheme);
|
|
|
|
// Provide the bus object for gnome-session to
|
|
// initiate logouts.
|
|
EndSessionDialog.init();
|
|
|
|
// We're ready for the session manager to move to the next phase
|
|
Meta.register_with_session();
|
|
|
|
_startDate = new Date();
|
|
|
|
ExtensionDownloader.init();
|
|
ExtensionSystem.init();
|
|
|
|
if (sessionMode.isGreeter && screenShield) {
|
|
layoutManager.connect('startup-prepared', () => {
|
|
screenShield.showDialog();
|
|
});
|
|
}
|
|
|
|
layoutManager.connect('startup-complete', () => {
|
|
if (actionMode == Shell.ActionMode.NONE) {
|
|
actionMode = Shell.ActionMode.NORMAL;
|
|
}
|
|
if (screenShield) {
|
|
screenShield.lockIfWasLocked();
|
|
}
|
|
if (sessionMode.currentMode != 'gdm' &&
|
|
sessionMode.currentMode != 'initial-setup') {
|
|
Shell.Global.log_structured('GNOME Shell started at ' + _startDate,
|
|
['MESSAGE_ID=' + GNOMESHELL_STARTED_MESSAGE_ID]);
|
|
}
|
|
|
|
let perfModuleName = GLib.getenv("SHELL_PERF_MODULE");
|
|
if (perfModuleName) {
|
|
let perfOutput = GLib.getenv("SHELL_PERF_OUTPUT");
|
|
let module = eval('imports.perf.' + perfModuleName + ';');
|
|
Scripting.runPerfScript(module, perfOutput);
|
|
}
|
|
});
|
|
}
|
|
|
|
function _getStylesheet(name) {
|
|
let stylesheet;
|
|
|
|
stylesheet = Gio.File.new_for_uri('resource:///org/gnome/shell/theme/' + name);
|
|
if (stylesheet.query_exists(null))
|
|
return stylesheet;
|
|
|
|
let dataDirs = GLib.get_system_data_dirs();
|
|
for (let i = 0; i < dataDirs.length; i++) {
|
|
let path = GLib.build_filenamev([dataDirs[i], 'gnome-shell', 'theme', name]);
|
|
let stylesheet = Gio.file_new_for_path(path);
|
|
if (stylesheet.query_exists(null))
|
|
return stylesheet;
|
|
}
|
|
|
|
stylesheet = Gio.File.new_for_path(global.datadir + '/theme/' + name);
|
|
if (stylesheet.query_exists(null))
|
|
return stylesheet;
|
|
|
|
return null;
|
|
}
|
|
|
|
function _getDefaultStylesheet() {
|
|
let stylesheet = null;
|
|
let name = sessionMode.stylesheetName;
|
|
|
|
// Look for a high-contrast variant first when using GTK+'s HighContrast
|
|
// theme
|
|
if (St.Settings.get().gtk_theme == 'HighContrast')
|
|
stylesheet = _getStylesheet(name.replace('.css', '-high-contrast.css'));
|
|
|
|
if (stylesheet == null)
|
|
stylesheet = _getStylesheet(sessionMode.stylesheetName);
|
|
|
|
return stylesheet;
|
|
}
|
|
|
|
function _loadDefaultStylesheet() {
|
|
let stylesheet = _getDefaultStylesheet();
|
|
if (_defaultCssStylesheet && _defaultCssStylesheet.equal(stylesheet))
|
|
return;
|
|
|
|
_defaultCssStylesheet = stylesheet;
|
|
loadTheme();
|
|
}
|
|
|
|
/**
|
|
* getThemeStylesheet:
|
|
*
|
|
* Get the theme CSS file that the shell will load
|
|
*
|
|
* Returns: A #GFile that contains the theme CSS,
|
|
* null if using the default
|
|
*/
|
|
function getThemeStylesheet() {
|
|
return _cssStylesheet;
|
|
}
|
|
|
|
/**
|
|
* setThemeStylesheet:
|
|
* @cssStylesheet: A file path that contains the theme CSS,
|
|
* set it to null to use the default
|
|
*
|
|
* Set the theme CSS file that the shell will load
|
|
*/
|
|
function setThemeStylesheet(cssStylesheet) {
|
|
_cssStylesheet = cssStylesheet ? Gio.File.new_for_path(cssStylesheet) : null;
|
|
}
|
|
|
|
function reloadThemeResource() {
|
|
if (_themeResource)
|
|
_themeResource._unregister();
|
|
|
|
_themeResource = Gio.Resource.load(global.datadir + '/gnome-shell-theme.gresource');
|
|
_themeResource._register();
|
|
}
|
|
|
|
function _loadOskLayouts() {
|
|
_oskResource = Gio.Resource.load(global.datadir + '/gnome-shell-osk-layouts.gresource');
|
|
_oskResource._register();
|
|
}
|
|
|
|
/**
|
|
* loadTheme:
|
|
*
|
|
* Reloads the theme CSS file
|
|
*/
|
|
function loadTheme() {
|
|
let themeContext = St.ThemeContext.get_for_stage (global.stage);
|
|
let previousTheme = themeContext.get_theme();
|
|
|
|
let theme = new St.Theme ({ application_stylesheet: _cssStylesheet,
|
|
default_stylesheet: _defaultCssStylesheet });
|
|
|
|
if (theme.default_stylesheet == null)
|
|
throw new Error("No valid stylesheet found for '%s'".format(sessionMode.stylesheetName));
|
|
|
|
if (previousTheme) {
|
|
let customStylesheets = previousTheme.get_custom_stylesheets();
|
|
|
|
for (let i = 0; i < customStylesheets.length; i++)
|
|
theme.load_stylesheet(customStylesheets[i]);
|
|
}
|
|
|
|
themeContext.set_theme (theme);
|
|
}
|
|
|
|
/**
|
|
* notify:
|
|
* @msg: A message
|
|
* @details: Additional information
|
|
*/
|
|
function notify(msg, details) {
|
|
let source = new MessageTray.SystemNotificationSource();
|
|
messageTray.add(source);
|
|
let notification = new MessageTray.Notification(source, msg, details);
|
|
notification.setTransient(true);
|
|
source.notify(notification);
|
|
}
|
|
|
|
/**
|
|
* notifyError:
|
|
* @msg: An error message
|
|
* @details: Additional information
|
|
*
|
|
* See shell_global_notify_problem().
|
|
*/
|
|
function notifyError(msg, details) {
|
|
// Also print to stderr so it's logged somewhere
|
|
if (details)
|
|
log('error: ' + msg + ': ' + details);
|
|
else
|
|
log('error: ' + msg);
|
|
|
|
notify(msg, details);
|
|
}
|
|
|
|
function _findModal(actor) {
|
|
for (let i = 0; i < modalActorFocusStack.length; i++) {
|
|
if (modalActorFocusStack[i].actor == actor)
|
|
return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* pushModal:
|
|
* @actor: #ClutterActor which will be given keyboard focus
|
|
* @params: optional parameters
|
|
*
|
|
* Ensure we are in a mode where all keyboard and mouse input goes to
|
|
* the stage, and focus @actor. Multiple calls to this function act in
|
|
* a stacking fashion; the effect will be undone when an equal number
|
|
* of popModal() invocations have been made.
|
|
*
|
|
* Next, record the current Clutter keyboard focus on a stack. If the
|
|
* modal stack returns to this actor, reset the focus to the actor
|
|
* which was focused at the time pushModal() was invoked.
|
|
*
|
|
* @params may be used to provide the following parameters:
|
|
* - timestamp: used to associate the call with a specific user initiated
|
|
* event. If not provided then the value of
|
|
* global.get_current_time() is assumed.
|
|
*
|
|
* - options: Meta.ModalOptions flags to indicate that the pointer is
|
|
* already grabbed
|
|
*
|
|
* - actionMode: used to set the current Shell.ActionMode to filter
|
|
* global keybindings; the default of NONE will filter
|
|
* out all keybindings
|
|
*
|
|
* Returns: true iff we successfully acquired a grab or already had one
|
|
*/
|
|
function pushModal(actor, params) {
|
|
params = Params.parse(params, { timestamp: global.get_current_time(),
|
|
options: 0,
|
|
actionMode: Shell.ActionMode.NONE });
|
|
|
|
if (modalCount == 0) {
|
|
if (!global.begin_modal(params.timestamp, params.options)) {
|
|
log('pushModal: invocation of begin_modal failed');
|
|
return false;
|
|
}
|
|
Meta.disable_unredirect_for_display(global.display);
|
|
}
|
|
|
|
modalCount += 1;
|
|
let actorDestroyId = actor.connect('destroy', () => {
|
|
let index = _findModal(actor);
|
|
if (index >= 0)
|
|
popModal(actor);
|
|
});
|
|
|
|
let prevFocus = global.stage.get_key_focus();
|
|
let prevFocusDestroyId;
|
|
if (prevFocus != null) {
|
|
prevFocusDestroyId = prevFocus.connect('destroy', () => {
|
|
let index = _findModal(actor);
|
|
if (index >= 0)
|
|
modalActorFocusStack[index].prevFocus = null;
|
|
});
|
|
}
|
|
modalActorFocusStack.push({ actor: actor,
|
|
destroyId: actorDestroyId,
|
|
prevFocus: prevFocus,
|
|
prevFocusDestroyId: prevFocusDestroyId,
|
|
actionMode: actionMode });
|
|
|
|
actionMode = params.actionMode;
|
|
global.stage.set_key_focus(actor);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* popModal:
|
|
* @actor: #ClutterActor passed to original invocation of pushModal().
|
|
* @timestamp: optional timestamp
|
|
*
|
|
* Reverse the effect of pushModal(). If this invocation is undoing
|
|
* the topmost invocation, then the focus will be restored to the
|
|
* previous focus at the time when pushModal() was invoked.
|
|
*
|
|
* @timestamp is optionally used to associate the call with a specific user
|
|
* initiated event. If not provided then the value of
|
|
* global.get_current_time() is assumed.
|
|
*/
|
|
function popModal(actor, timestamp) {
|
|
if (timestamp == undefined)
|
|
timestamp = global.get_current_time();
|
|
|
|
let focusIndex = _findModal(actor);
|
|
if (focusIndex < 0) {
|
|
global.stage.set_key_focus(null);
|
|
global.end_modal(timestamp);
|
|
actionMode = Shell.ActionMode.NORMAL;
|
|
|
|
throw new Error('incorrect pop');
|
|
}
|
|
|
|
modalCount -= 1;
|
|
|
|
let record = modalActorFocusStack[focusIndex];
|
|
record.actor.disconnect(record.destroyId);
|
|
|
|
if (focusIndex == modalActorFocusStack.length - 1) {
|
|
if (record.prevFocus)
|
|
record.prevFocus.disconnect(record.prevFocusDestroyId);
|
|
actionMode = record.actionMode;
|
|
global.stage.set_key_focus(record.prevFocus);
|
|
} else {
|
|
// If we have:
|
|
// global.stage.set_focus(a);
|
|
// Main.pushModal(b);
|
|
// Main.pushModal(c);
|
|
// Main.pushModal(d);
|
|
//
|
|
// then we have the stack:
|
|
// [{ prevFocus: a, actor: b },
|
|
// { prevFocus: b, actor: c },
|
|
// { prevFocus: c, actor: d }]
|
|
//
|
|
// When actor c is destroyed/popped, if we only simply remove the
|
|
// record, then the focus stack will be [a, c], rather than the correct
|
|
// [a, b]. Shift the focus stack up before removing the record to ensure
|
|
// that we get the correct result.
|
|
let t = modalActorFocusStack[modalActorFocusStack.length - 1];
|
|
if (t.prevFocus)
|
|
t.prevFocus.disconnect(t.prevFocusDestroyId);
|
|
// Remove from the middle, shift the focus chain up
|
|
for (let i = modalActorFocusStack.length - 1; i > focusIndex; i--) {
|
|
modalActorFocusStack[i].prevFocus = modalActorFocusStack[i - 1].prevFocus;
|
|
modalActorFocusStack[i].prevFocusDestroyId = modalActorFocusStack[i - 1].prevFocusDestroyId;
|
|
modalActorFocusStack[i].actionMode = modalActorFocusStack[i - 1].actionMode;
|
|
}
|
|
}
|
|
modalActorFocusStack.splice(focusIndex, 1);
|
|
|
|
if (modalCount > 0)
|
|
return;
|
|
|
|
layoutManager.modalEnded();
|
|
global.end_modal(timestamp);
|
|
Meta.enable_unredirect_for_display(global.display);
|
|
actionMode = Shell.ActionMode.NORMAL;
|
|
}
|
|
|
|
function createLookingGlass() {
|
|
if (lookingGlass == null) {
|
|
lookingGlass = new LookingGlass.LookingGlass();
|
|
}
|
|
return lookingGlass;
|
|
}
|
|
|
|
function openRunDialog() {
|
|
if (runDialog == null) {
|
|
runDialog = new RunDialog.RunDialog();
|
|
}
|
|
runDialog.open();
|
|
}
|
|
|
|
/**
|
|
* activateWindow:
|
|
* @window: the Meta.Window to activate
|
|
* @time: (optional) current event time
|
|
* @workspaceNum: (optional) window's workspace number
|
|
*
|
|
* Activates @window, switching to its workspace first if necessary,
|
|
* and switching out of the overview if it's currently active
|
|
*/
|
|
function activateWindow(window, time, workspaceNum) {
|
|
let workspaceManager = global.workspace_manager;
|
|
let activeWorkspaceNum = workspaceManager.get_active_workspace_index();
|
|
let windowWorkspaceNum = (workspaceNum !== undefined) ? workspaceNum : window.get_workspace().index();
|
|
|
|
if (!time)
|
|
time = global.get_current_time();
|
|
|
|
if (windowWorkspaceNum != activeWorkspaceNum) {
|
|
let workspace = workspaceManager.get_workspace_by_index(windowWorkspaceNum);
|
|
workspace.activate_with_focus(window, time);
|
|
} else {
|
|
window.activate(time);
|
|
}
|
|
|
|
overview.hide();
|
|
panel.closeCalendar();
|
|
}
|
|
|
|
// TODO - replace this timeout with some system to guess when the user might
|
|
// be e.g. just reading the screen and not likely to interact.
|
|
var DEFERRED_TIMEOUT_SECONDS = 20;
|
|
var _deferredWorkData = {};
|
|
// Work scheduled for some point in the future
|
|
var _deferredWorkQueue = [];
|
|
// Work we need to process before the next redraw
|
|
var _beforeRedrawQueue = [];
|
|
// Counter to assign work ids
|
|
var _deferredWorkSequence = 0;
|
|
var _deferredTimeoutId = 0;
|
|
|
|
function _runDeferredWork(workId) {
|
|
if (!_deferredWorkData[workId])
|
|
return;
|
|
let index = _deferredWorkQueue.indexOf(workId);
|
|
if (index < 0)
|
|
return;
|
|
|
|
_deferredWorkQueue.splice(index, 1);
|
|
_deferredWorkData[workId].callback();
|
|
if (_deferredWorkQueue.length == 0 && _deferredTimeoutId > 0) {
|
|
Mainloop.source_remove(_deferredTimeoutId);
|
|
_deferredTimeoutId = 0;
|
|
}
|
|
}
|
|
|
|
function _runAllDeferredWork() {
|
|
while (_deferredWorkQueue.length > 0)
|
|
_runDeferredWork(_deferredWorkQueue[0]);
|
|
}
|
|
|
|
function _runBeforeRedrawQueue() {
|
|
for (let i = 0; i < _beforeRedrawQueue.length; i++) {
|
|
let workId = _beforeRedrawQueue[i];
|
|
_runDeferredWork(workId);
|
|
}
|
|
_beforeRedrawQueue = [];
|
|
}
|
|
|
|
function _queueBeforeRedraw(workId) {
|
|
_beforeRedrawQueue.push(workId);
|
|
if (_beforeRedrawQueue.length == 1) {
|
|
Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
|
|
_runBeforeRedrawQueue();
|
|
return false;
|
|
});
|
|
}
|
|
}
|
|
|
|
/**
|
|
* initializeDeferredWork:
|
|
* @actor: A #ClutterActor
|
|
* @callback: Function to invoke to perform work
|
|
*
|
|
* This function sets up a callback to be invoked when either the
|
|
* given actor is mapped, or after some period of time when the machine
|
|
* is idle. This is useful if your actor isn't always visible on the
|
|
* screen (for example, all actors in the overview), and you don't want
|
|
* to consume resources updating if the actor isn't actually going to be
|
|
* displaying to the user.
|
|
*
|
|
* Note that queueDeferredWork is called by default immediately on
|
|
* initialization as well, under the assumption that new actors
|
|
* will need it.
|
|
*
|
|
* Returns: A string work identifier
|
|
*/
|
|
function initializeDeferredWork(actor, callback, props) {
|
|
// Turn into a string so we can use as an object property
|
|
let workId = '' + (++_deferredWorkSequence);
|
|
_deferredWorkData[workId] = { 'actor': actor,
|
|
'callback': callback };
|
|
actor.connect('notify::mapped', () => {
|
|
if (!(actor.mapped && _deferredWorkQueue.indexOf(workId) >= 0))
|
|
return;
|
|
_queueBeforeRedraw(workId);
|
|
});
|
|
actor.connect('destroy', () => {
|
|
let index = _deferredWorkQueue.indexOf(workId);
|
|
if (index >= 0)
|
|
_deferredWorkQueue.splice(index, 1);
|
|
delete _deferredWorkData[workId];
|
|
});
|
|
queueDeferredWork(workId);
|
|
return workId;
|
|
}
|
|
|
|
/**
|
|
* queueDeferredWork:
|
|
* @workId: work identifier
|
|
*
|
|
* Ensure that the work identified by @workId will be
|
|
* run on map or timeout. You should call this function
|
|
* for example when data being displayed by the actor has
|
|
* changed.
|
|
*/
|
|
function queueDeferredWork(workId) {
|
|
let data = _deferredWorkData[workId];
|
|
if (!data) {
|
|
let message = 'Invalid work id %d'.format(workId);
|
|
logError(new Error(message), message);
|
|
return;
|
|
}
|
|
if (_deferredWorkQueue.indexOf(workId) < 0)
|
|
_deferredWorkQueue.push(workId);
|
|
if (data.actor.mapped) {
|
|
_queueBeforeRedraw(workId);
|
|
return;
|
|
} else if (_deferredTimeoutId == 0) {
|
|
_deferredTimeoutId = Mainloop.timeout_add_seconds(DEFERRED_TIMEOUT_SECONDS, () => {
|
|
_runAllDeferredWork();
|
|
_deferredTimeoutId = 0;
|
|
return GLib.SOURCE_REMOVE;
|
|
});
|
|
GLib.Source.set_name_by_id(_deferredTimeoutId, '[gnome-shell] _runAllDeferredWork');
|
|
}
|
|
}
|
|
|
|
var RestartMessage = GObject.registerClass(
|
|
class RestartMessage extends ModalDialog.ModalDialog {
|
|
_init(message) {
|
|
super._init({ shellReactive: true,
|
|
styleClass: 'restart-message headline',
|
|
shouldFadeIn: false,
|
|
destroyOnClose: true });
|
|
|
|
let label = new St.Label({ text: message });
|
|
|
|
this.contentLayout.add(label, { x_fill: false,
|
|
y_fill: false,
|
|
x_align: St.Align.MIDDLE,
|
|
y_align: St.Align.MIDDLE });
|
|
this.buttonLayout.hide();
|
|
}
|
|
});
|
|
|
|
function showRestartMessage(message) {
|
|
let restartMessage = new RestartMessage(message);
|
|
restartMessage.open();
|
|
}
|