b5130c5943
When integrating with optional components like Clocks, it is not safe to access their GSettings right after the application became visible to the AppSystem: Installation is usually not atomic, so the .desktop file may appear before the settings schema, in which case Gio will abort due to an "invalid" schema ID. To address this, add a small helper class that wraps the settings access in a safe way. https://bugzilla.gnome.org/show_bug.cgi?id=766410
494 lines
16 KiB
JavaScript
494 lines
16 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const Clutter = imports.gi.Clutter;
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const Gio = imports.gi.Gio;
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const GLib = imports.gi.GLib;
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const Lang = imports.lang;
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const Mainloop = imports.mainloop;
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const Signals = imports.signals;
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const Shell = imports.gi.Shell;
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const St = imports.gi.St;
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const Main = imports.ui.main;
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const Tweener = imports.ui.tweener;
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const Params = imports.misc.params;
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const SCROLL_TIME = 0.1;
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// http://daringfireball.net/2010/07/improved_regex_for_matching_urls
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const _balancedParens = '\\((?:[^\\s()<>]+|(?:\\(?:[^\\s()<>]+\\)))*\\)';
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const _leadingJunk = '[\\s`(\\[{\'\\"<\u00AB\u201C\u2018]';
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const _notTrailingJunk = '[^\\s`!()\\[\\]{};:\'\\".,<>?\u00AB\u00BB\u201C\u201D\u2018\u2019]';
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const _urlRegexp = new RegExp(
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'(^|' + _leadingJunk + ')' +
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'(' +
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'(?:' +
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'(?:http|https|ftp)://' + // scheme://
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'|' +
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'www\\d{0,3}[.]' + // www.
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'|' +
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'[a-z0-9.\\-]+[.][a-z]{2,4}/' + // foo.xx/
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')' +
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'(?:' + // one or more:
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'[^\\s()<>]+' + // run of non-space non-()
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'|' + // or
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_balancedParens + // balanced parens
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')+' +
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'(?:' + // end with:
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_balancedParens + // balanced parens
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'|' + // or
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_notTrailingJunk + // last non-junk char
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')' +
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')', 'gi');
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let _desktopSettings = null;
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// findUrls:
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// @str: string to find URLs in
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//
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// Searches @str for URLs and returns an array of objects with %url
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// properties showing the matched URL string, and %pos properties indicating
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// the position within @str where the URL was found.
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//
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// Return value: the list of match objects, as described above
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function findUrls(str) {
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let res = [], match;
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while ((match = _urlRegexp.exec(str)))
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res.push({ url: match[2], pos: match.index + match[1].length });
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return res;
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}
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// spawn:
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// @argv: an argv array
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//
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// Runs @argv in the background, handling any errors that occur
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// when trying to start the program.
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function spawn(argv) {
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try {
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trySpawn(argv);
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} catch (err) {
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_handleSpawnError(argv[0], err);
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}
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}
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// spawnCommandLine:
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// @command_line: a command line
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//
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// Runs @command_line in the background, handling any errors that
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// occur when trying to parse or start the program.
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function spawnCommandLine(command_line) {
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try {
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let [success, argv] = GLib.shell_parse_argv(command_line);
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trySpawn(argv);
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} catch (err) {
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_handleSpawnError(command_line, err);
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}
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}
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// spawnApp:
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// @argv: an argv array
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//
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// Runs @argv as if it was an application, handling startup notification
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function spawnApp(argv) {
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try {
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let app = Gio.AppInfo.create_from_commandline(argv.join(' '), null,
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Gio.AppInfoCreateFlags.SUPPORTS_STARTUP_NOTIFICATION);
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let context = global.create_app_launch_context(0, -1);
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app.launch([], context, false);
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} catch(err) {
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_handleSpawnError(argv[0], err);
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}
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}
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// trySpawn:
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// @argv: an argv array
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//
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// Runs @argv in the background. If launching @argv fails,
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// this will throw an error.
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function trySpawn(argv)
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{
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var success, pid;
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try {
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[success, pid] = GLib.spawn_async(null, argv, null,
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GLib.SpawnFlags.SEARCH_PATH | GLib.SpawnFlags.DO_NOT_REAP_CHILD,
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null);
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} catch (err) {
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/* Rewrite the error in case of ENOENT */
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if (err.matches(GLib.SpawnError, GLib.SpawnError.NOENT)) {
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throw new GLib.SpawnError({ code: GLib.SpawnError.NOENT,
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message: _("Command not found") });
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} else if (err instanceof GLib.Error) {
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// The exception from gjs contains an error string like:
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// Error invoking GLib.spawn_command_line_async: Failed to
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// execute child process "foo" (No such file or directory)
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// We are only interested in the part in the parentheses. (And
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// we can't pattern match the text, since it gets localized.)
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let message = err.message.replace(/.*\((.+)\)/, '$1');
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throw new (err.constructor)({ code: err.code,
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message: message });
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} else {
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throw err;
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}
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}
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// Dummy child watch; we don't want to double-fork internally
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// because then we lose the parent-child relationship, which
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// can break polkit. See https://bugzilla.redhat.com//show_bug.cgi?id=819275
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GLib.child_watch_add(GLib.PRIORITY_DEFAULT, pid, function () {});
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}
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// trySpawnCommandLine:
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// @command_line: a command line
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//
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// Runs @command_line in the background. If launching @command_line
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// fails, this will throw an error.
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function trySpawnCommandLine(command_line) {
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let success, argv;
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try {
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[success, argv] = GLib.shell_parse_argv(command_line);
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} catch (err) {
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// Replace "Error invoking GLib.shell_parse_argv: " with
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// something nicer
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err.message = err.message.replace(/[^:]*: /, _("Could not parse command:") + "\n");
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throw err;
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}
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trySpawn(argv);
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}
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function _handleSpawnError(command, err) {
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let title = _("Execution of “%s” failed:").format(command);
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Main.notifyError(title, err.message);
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}
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function formatTime(time, params) {
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let date;
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// HACK: The built-in Date type sucks at timezones, which we need for the
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// world clock; it's often more convenient though, so allow either
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// Date or GLib.DateTime as parameter
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if (time instanceof Date)
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date = GLib.DateTime.new_from_unix_local(time.getTime() / 1000);
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else
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date = time;
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let now = GLib.DateTime.new_now_local();
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let daysAgo = now.difference(date) / (24 * 60 * 60 * 1000 * 1000);
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let format;
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if (_desktopSettings == null)
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_desktopSettings = new Gio.Settings({ schema_id: 'org.gnome.desktop.interface' });
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let clockFormat = _desktopSettings.get_string('clock-format');
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let hasAmPm = date.format('%p') != '';
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params = Params.parse(params, { timeOnly: false });
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if (clockFormat == '24h' || !hasAmPm) {
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// Show only the time if date is on today
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if (daysAgo < 1 || params.timeOnly)
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/* Translators: Time in 24h format */
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format = N_("%H\u2236%M");
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// Show the word "Yesterday" and time if date is on yesterday
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else if (daysAgo <2)
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/* Translators: this is the word "Yesterday" followed by a
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time string in 24h format. i.e. "Yesterday, 14:30" */
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// xgettext:no-c-format
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format = N_("Yesterday, %H\u2236%M");
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// Show a week day and time if date is in the last week
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else if (daysAgo < 7)
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/* Translators: this is the week day name followed by a time
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string in 24h format. i.e. "Monday, 14:30" */
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// xgettext:no-c-format
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format = N_("%A, %H\u2236%M");
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else if (date.get_year() == now.get_year())
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/* Translators: this is the month name and day number
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followed by a time string in 24h format.
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i.e. "May 25, 14:30" */
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// xgettext:no-c-format
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format = N_("%B %d, %H\u2236%M");
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else
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/* Translators: this is the month name, day number, year
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number followed by a time string in 24h format.
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i.e. "May 25 2012, 14:30" */
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// xgettext:no-c-format
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format = N_("%B %d %Y, %H\u2236%M");
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} else {
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// Show only the time if date is on today
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if (daysAgo < 1 || params.timeOnly)
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/* Translators: Time in 12h format */
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format = N_("%l\u2236%M %p");
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// Show the word "Yesterday" and time if date is on yesterday
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else if (daysAgo <2)
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/* Translators: this is the word "Yesterday" followed by a
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time string in 12h format. i.e. "Yesterday, 2:30 pm" */
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// xgettext:no-c-format
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format = N_("Yesterday, %l\u2236%M %p");
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// Show a week day and time if date is in the last week
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else if (daysAgo < 7)
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/* Translators: this is the week day name followed by a time
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string in 12h format. i.e. "Monday, 2:30 pm" */
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// xgettext:no-c-format
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format = N_("%A, %l\u2236%M %p");
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else if (date.get_year() == now.get_year())
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/* Translators: this is the month name and day number
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followed by a time string in 12h format.
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i.e. "May 25, 2:30 pm" */
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// xgettext:no-c-format
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format = N_("%B %d, %l\u2236%M %p");
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else
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/* Translators: this is the month name, day number, year
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number followed by a time string in 12h format.
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i.e. "May 25 2012, 2:30 pm"*/
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// xgettext:no-c-format
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format = N_("%B %d %Y, %l\u2236%M %p");
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}
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return date.format(Shell.util_translate_time_string(format));
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}
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function createTimeLabel(date, params) {
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if (_desktopSettings == null)
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_desktopSettings = new Gio.Settings({ schema_id: 'org.gnome.desktop.interface' });
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let label = new St.Label({ text: formatTime(date, params) });
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let id = _desktopSettings.connect('changed::clock-format', function() {
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label.text = formatTime(date, params);
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});
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label.connect('destroy', function() {
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_desktopSettings.disconnect(id);
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});
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return label;
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}
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// lowerBound:
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// @array: an array or array-like object, already sorted
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// according to @cmp
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// @val: the value to add
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// @cmp: a comparator (or undefined to compare as numbers)
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//
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// Returns the position of the first element that is not
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// lower than @val, according to @cmp.
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// That is, returns the first position at which it
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// is possible to insert @val without violating the
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// order.
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// This is quite like an ordinary binary search, except
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// that it doesn't stop at first element comparing equal.
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function lowerBound(array, val, cmp) {
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let min, max, mid, v;
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cmp = cmp || function(a, b) { return a - b; };
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if (array.length == 0)
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return 0;
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min = 0; max = array.length;
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while (min < (max - 1)) {
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mid = Math.floor((min + max) / 2);
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v = cmp(array[mid], val);
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if (v < 0)
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min = mid + 1;
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else
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max = mid;
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}
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return (min == max || cmp(array[min], val) < 0) ? max : min;
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}
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// insertSorted:
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// @array: an array sorted according to @cmp
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// @val: a value to insert
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// @cmp: the sorting function
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//
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// Inserts @val into @array, preserving the
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// sorting invariants.
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// Returns the position at which it was inserted
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function insertSorted(array, val, cmp) {
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let pos = lowerBound(array, val, cmp);
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array.splice(pos, 0, val);
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return pos;
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}
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const CloseButton = new Lang.Class({
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Name: 'CloseButton',
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Extends: St.Button,
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_init: function(boxpointer) {
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this.parent({ style_class: 'notification-close'});
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// This is a bit tricky. St.Bin has its own x-align/y-align properties
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// that compete with Clutter's properties. This should be fixed for
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// Clutter 2.0. Since St.Bin doesn't define its own setters, the
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// setters are a workaround to get Clutter's version.
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this.set_x_align(Clutter.ActorAlign.END);
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this.set_y_align(Clutter.ActorAlign.START);
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// XXX Clutter 2.0 workaround: ClutterBinLayout needs expand
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// to respect the alignments.
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this.set_x_expand(true);
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this.set_y_expand(true);
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this._boxPointer = boxpointer;
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if (boxpointer)
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this._boxPointer.connect('arrow-side-changed', Lang.bind(this, this._sync));
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},
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_computeBoxPointerOffset: function() {
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if (!this._boxPointer || !this._boxPointer.actor.get_stage())
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return 0;
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let side = this._boxPointer.arrowSide;
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if (side == St.Side.TOP)
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return this._boxPointer.getArrowHeight();
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else
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return 0;
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},
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_sync: function() {
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let themeNode = this.get_theme_node();
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let offY = this._computeBoxPointerOffset();
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this.translation_x = themeNode.get_length('-shell-close-overlap-x')
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this.translation_y = themeNode.get_length('-shell-close-overlap-y') + offY;
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},
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vfunc_style_changed: function() {
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this._sync();
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this.parent();
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},
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});
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function makeCloseButton(boxpointer) {
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return new CloseButton(boxpointer);
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}
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function ensureActorVisibleInScrollView(scrollView, actor) {
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let adjustment = scrollView.vscroll.adjustment;
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let [value, lower, upper, stepIncrement, pageIncrement, pageSize] = adjustment.get_values();
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let offset = 0;
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let vfade = scrollView.get_effect("fade");
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if (vfade)
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offset = vfade.vfade_offset;
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let box = actor.get_allocation_box();
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let y1 = box.y1, y2 = box.y2;
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let parent = actor.get_parent();
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while (parent != scrollView) {
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if (!parent)
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throw new Error("actor not in scroll view");
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let box = parent.get_allocation_box();
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y1 += box.y1;
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y2 += box.y1;
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parent = parent.get_parent();
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}
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if (y1 < value + offset)
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value = Math.max(0, y1 - offset);
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else if (y2 > value + pageSize - offset)
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value = Math.min(upper, y2 + offset - pageSize);
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else
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return;
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Tweener.addTween(adjustment,
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{ value: value,
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time: SCROLL_TIME,
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transition: 'easeOutQuad' });
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}
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const AppSettingsMonitor = new Lang.Class({
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Name: 'AppSettingsMonitor',
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_init: function(appId, schemaId) {
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this._appId = appId;
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this._schemaId = schemaId;
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this._app = null;
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this._settings = null;
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this._handlers = [];
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this._schemaSource = Gio.SettingsSchemaSource.get_default();
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this._appSystem = Shell.AppSystem.get_default();
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this._appSystem.connect('installed-changed',
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Lang.bind(this, this._onInstalledChanged));
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this._onInstalledChanged();
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},
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get available() {
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return this._app != null && this._settings != null;
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},
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activateApp: function() {
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if (this._app)
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this._app.activate();
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},
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watchSetting: function(key, callback) {
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let handler = { id: 0, key: key, callback: callback };
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this._handlers.push(handler);
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this._connectHandler(handler);
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},
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_connectHandler: function(handler) {
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if (!this._settings || handler.id > 0)
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return;
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handler.id = this._settings.connect('changed::' + handler.key,
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handler.callback);
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handler.callback(this._settings, handler.key);
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},
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_disconnectHandler: function(handler) {
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if (this._settings && handler.id > 0)
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this._settings.disconnect(handler.id);
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handler.id = 0;
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},
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_onInstalledChanged: function() {
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let hadApp = (this._app != null);
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this._app = this._appSystem.lookup_app(this._appId);
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let haveApp = (this._app != null);
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if (hadApp == haveApp)
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return;
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if (haveApp)
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this._checkSettings();
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else
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this._setSettings(null);
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},
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_setSettings(settings) {
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this._handlers.forEach((handler) => { this._disconnectHandler(handler); });
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let hadSettings = (this._settings != null);
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this._settings = settings;
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let haveSettings = (this._settings != null);
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this._handlers.forEach((handler) => { this._connectHandler(handler); });
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if (hadSettings != haveSettings)
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this.emit('available-changed');
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},
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_checkSettings: function() {
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let schema = this._schemaSource.lookup(this._schemaId, true);
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if (schema) {
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this._setSettings(new Gio.Settings({ settings_schema: schema }));
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} else if (this._app) {
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Mainloop.timeout_add_seconds(1, () => {
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this._checkSettings();
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return GLib.SOURCE_REMOVE;
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});
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}
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}
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});
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Signals.addSignalMethods(AppSettingsMonitor.prototype);
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