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extension.js
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extension.js
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/*
* walNUT: A Gnome Shell Extension for NUT (Network UPS Tools)
*
* Copyright (C)
* 2013 Daniele Pezzini <[email protected]>
*
* 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 of the License, 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
const Atk = imports.gi.Atk,
Clutter = imports.gi.Clutter,
Config = imports.misc.config,
Lang = imports.lang,
Main = imports.ui.main,
Mainloop = imports.mainloop,
ModalDialog = imports.ui.modalDialog,
PanelMenu = imports.ui.panelMenu,
Pango = imports.gi.Pango,
PopupMenu = imports.ui.popupMenu,
ShellEntry = imports.ui.shellEntry,
Slider = imports.ui.slider,
St = imports.gi.St,
Tweener = imports.ui.tweener,
Util = imports.misc.util;
// Gettext
const Gettext = imports.gettext.domain('gnome-shell-extensions-walnut'),
_ = Gettext.gettext;
const Me = imports.misc.extensionUtils.getCurrentExtension(),
Convenience = Me.imports.convenience,
// Import GJS implementation of NUT's net protocol
Nut = Me.imports.nut,
// Import utilities.js
Utilities = Me.imports.utilities;
// Panel Icons
const Icons = {
// Error = E
E: 'nut-error',
// Battery | Load
// full = 2 | full = 23
// good = 3 | good = 17
// low = 5 | low = 13
// empty = 7 | empty = 11
// no battery/no load = 1
// +: lightning = online (= status OL = not on battery (OB = B) = mains is not absent): full opacity = charging => O | transparent = charged => C
// +: ! = caution (ALARM, BYPASS, OVER, RB..) => A
// status = OB (-> B) - no caution
// no battery/no load -> 1
B1: 'nut-ghost-ob',
// battery full -> 2
B2: 'nut-battery-full',
B46: 'nut-battery-full-load-full',
B34: 'nut-battery-full-load-good',
B26: 'nut-battery-full-load-low',
B22: 'nut-battery-full-load-empty',
// battery good -> 3
B3: 'nut-battery-good',
B69: 'nut-battery-good-load-full',
B51: 'nut-battery-good-load-good',
B39: 'nut-battery-good-load-low',
B33: 'nut-battery-good-load-empty',
// battery low -> 5
B5: 'nut-battery-low',
B115: 'nut-battery-low-load-full',
B85: 'nut-battery-low-load-good',
B65: 'nut-battery-low-load-low',
B55: 'nut-battery-low-load-empty',
// battery empty -> 7
B7: 'nut-battery-empty',
B161: 'nut-battery-empty-load-full',
B119: 'nut-battery-empty-load-good',
B91: 'nut-battery-empty-load-low',
B77: 'nut-battery-empty',
// just load
// load full -> 23
B23: 'nut-battery-na-load-full',
// load good -> 17
B17: 'nut-battery-na-load-good',
// load low -> 13
B13: 'nut-battery-na-load-low',
// load empty -> 11
B11: 'nut-battery-na-load-empty',
// status = OB (->B) - caution (->A)
// no battery/no load -> 1
BA1: 'nut-ghost-ob-caution',
// battery full -> 2
BA2: 'nut-battery-full-caution',
BA46: 'nut-battery-full-load-full-caution',
BA34: 'nut-battery-full-load-good-caution',
BA26: 'nut-battery-full-load-low-caution',
BA22: 'nut-battery-full-load-empty-caution',
// battery good -> 3
BA3: 'nut-battery-good-caution',
BA69: 'nut-battery-good-load-full-caution',
BA51: 'nut-battery-good-load-good-caution',
BA39: 'nut-battery-good-load-low-caution',
BA33: 'nut-battery-good-load-empty-caution',
// battery low -> 5
BA5: 'nut-battery-low-caution',
BA115: 'nut-battery-low-load-full-caution',
BA85: 'nut-battery-low-load-good-caution',
BA65: 'nut-battery-low-load-low-caution',
BA55: 'nut-battery-low-load-empty-caution',
// battery empty -> 7
BA7: 'nut-battery-empty-caution',
BA161: 'nut-battery-empty-load-full-caution',
BA119: 'nut-battery-empty-load-good-caution',
BA91: 'nut-battery-empty-load-low-caution',
BA77: 'nut-battery-empty-caution',
// just load
// load full -> 23
BA23: 'nut-battery-na-load-full-caution',
// load good -> 17
BA17: 'nut-battery-na-load-good-caution',
// load low -> 13
BA13: 'nut-battery-na-load-low-caution',
// load empty -> 11
BA11: 'nut-battery-na-load-empty-caution',
// status = OL (->O[+C])
// no battery/no load -> 1
OC1: 'nut-ghost-ol-charged',
O1: 'nut-ghost-ol-charging',
// battery full -> 2
OC2: 'nut-battery-full-charged',
O2: 'nut-battery-full-charging',
OC46: 'nut-battery-full-load-full-charged',
O46: 'nut-battery-full-load-full-charging',
OC34: 'nut-battery-full-load-good-charged',
O34: 'nut-battery-full-load-good-charging',
OC26: 'nut-battery-full-load-low-charged',
O26: 'nut-battery-full-load-low-charging',
OC22: 'nut-battery-full-load-empty-charged',
O22: 'nut-battery-full-load-empty-charging',
// battery good -> 3
O3: 'nut-battery-good-charging',
O69: 'nut-battery-good-load-full-charging',
O51: 'nut-battery-good-load-good-charging',
O39: 'nut-battery-good-load-low-charging',
O33: 'nut-battery-good-load-empty-charging',
// battery low -> 5
O5: 'nut-battery-low-charging',
O115: 'nut-battery-low-load-full-charging',
O85: 'nut-battery-low-load-good-charging',
O65: 'nut-battery-low-load-low-charging',
O55: 'nut-battery-low-load-empty-charging',
// battery empty -> 7
O7: 'nut-battery-empty-charging',
O161: 'nut-battery-empty-load-full-charging',
O119: 'nut-battery-empty-load-good-charging',
O91: 'nut-battery-empty-load-low-charging',
O77: 'nut-battery-empty-charging',
// just load
// load full -> 23
OC23: 'nut-battery-na-load-full-charged',
O23: 'nut-battery-na-load-full-charging',
// load good -> 17
OC17: 'nut-battery-na-load-good-charged',
O17: 'nut-battery-na-load-good-charging',
// load low -> 13
OC13: 'nut-battery-na-load-low-charged',
O13: 'nut-battery-na-load-low-charging',
// load empty -> 11
OC11: 'nut-battery-na-load-empty-charged',
O11: 'nut-battery-na-load-empty-charging',
// status = OL (->O[+C]) - caution (->A)
// no battery/no load ->
OAC1: 'nut-ghost-ol-caution-charged',
OA1: 'nut-ghost-ol-caution-charging',
// battery full -> 2
OAC2: 'nut-battery-full-caution-charged',
OA2: 'nut-battery-full-caution-charging',
OAC46: 'nut-battery-full-load-full-caution-charged',
OA46: 'nut-battery-full-load-full-caution-charging',
OAC34: 'nut-battery-full-load-good-caution-charged',
OA34: 'nut-battery-full-load-good-caution-charging',
OAC26: 'nut-battery-full-load-low-caution-charged',
OA26: 'nut-battery-full-load-low-caution-charging',
OAC22: 'nut-battery-full-load-empty-caution-charged',
OA22: 'nut-battery-full-load-empty-caution-charging',
// battery good -> 3
OA3: 'nut-battery-good-caution-charging',
OA69: 'nut-battery-good-load-full-caution-charging',
OA51: 'nut-battery-good-load-good-caution-charging',
OA39: 'nut-battery-good-load-low-caution-charging',
OA33: 'nut-battery-good-load-empty-caution-charging',
// battery low -> 5
OA5: 'nut-battery-low-caution-charging',
OA115: 'nut-battery-low-load-full-caution-charging',
OA85: 'nut-battery-low-load-good-caution-charging',
OA65: 'nut-battery-low-load-low-caution-charging',
OA55: 'nut-battery-low-load-empty-caution-charging',
// battery empty -> 7
OA7: 'nut-battery-empty-caution-charging',
OA161: 'nut-battery-empty-load-full-caution-charging',
OA119: 'nut-battery-empty-load-good-caution-charging',
OA91: 'nut-battery-empty-load-low-caution-charging',
OA77: 'nut-battery-empty-caution-charging',
// just load
// load full -> 23
OAC23: 'nut-battery-na-load-full-caution-charged',
OA23: 'nut-battery-na-load-full-caution-charging',
// load good -> 17
OAC17: 'nut-battery-na-load-good-caution-charged',
OA17: 'nut-battery-na-load-good-caution-charging',
// load low -> 13
OAC13: 'nut-battery-na-load-low-caution-charged',
OA13: 'nut-battery-na-load-low-caution-charging',
// load empty -> 11
OAC11: 'nut-battery-na-load-empty-caution-charged',
OA11: 'nut-battery-na-load-empty-caution-charging'
}
// Battery icon @ menu
const BatteryIcon = {
B1: 'imported-battery-missing',
B2: 'imported-battery-full',
B3: 'imported-battery-good',
B5: 'imported-battery-low',
B7: 'imported-battery-empty'
}
// Errors
const ErrorType = {
UPS_NA: 2, // 'Chosen' UPS is not available
NO_UPS: 4, // No device found
}
// Max length (in chars)
const Lengths = {
ERR_LABEL: 35, // ErrorBox Label
ERR_DESC: 35, // ErrorBox Description
MODEL: 40, // Device manufacturer+model
TOPDATA: 40, // Topdata (status/alarm) description (2nd row)
RAW_VAR: 35, // Raw data list: variable's name
RAW_VALUE: 40, // Raw data list: variable's value
CMD: 45, // UPS commands list - description
CRED_DIALOG: 60 // Credentials dialog description
}
// Interval in milliseconds after which the extension should update the availability of the stored devices (15 minutes)
const INTERVAL = 900000;
// Raw data button ornament
const RawDataButtonOrnament = {
NONE: 0,
OPENED: 1,
CLOSED: 2
};
// Data table items
// Supported data format: {
// '<data identifier #1>': {
// label: function that shall return the label to be shown in panel menu
// icon: name of the icon (sans the '-symbolic' suffix) to be shown in panel menu, if static,
// or function that will be called with the actual value of data and shall return the icon name
// value: function that will be called with the actual value of data and shall return the string to be shown in panel menu
// gsetting: name of the gsetting that toggles the view of this type of data
// },
// '<data identifier #2>': {
// ...
// },
// ...
// }
const DataTableItems = {
'battery.charge': { // Battery charge
// TRANSLATORS: Label of battery charge @ data table
label: function() { return _("Battery Charge"); },
icon: function(value) { return BatteryIcon['B' + Utilities.parseBatteryLevel(value)]; },
// TRANSLATORS: Battery charge level @ data table
value: function(value) { return _("%s %").format(value); },
gsetting: 'display-battery-charge'
},
'ups.load': { // Device load
// TRANSLATORS: Label of device load @ data table
label: function() { return _("Device Load"); },
icon: 'imported-system-run',
// TRANSLATORS: Device load level @ data table
value: function(value) { return _("%s %").format(value); },
gsetting: 'display-load-level'
},
'battery.runtime': { // Backup time
// TRANSLATORS: Label of estimated backup time @ data table
label: function() { return _("Backup Time"); },
icon: 'imported-preferences-system-time',
value: function(value) { return Utilities.parseTime(value); },
gsetting: 'display-backup-time'
},
'ups.temperature': { // Device temperature
// TRANSLATORS: Label of device temperature @ data table
label: function() { return _("Temperature"); },
icon: 'nut-thermometer',
value: function(value) { return Utilities.formatTemp(value); },
gsetting: 'display-device-temperature'
}
};
// UpscMonitor: get vars from NUT at a given interval and deliver infos
const UpscMonitor = new Lang.Class({
Name: 'UpscMonitor',
_init: function() {
// Actual status
this._state = ErrorType.NO_UPS | ErrorType.UPS_NA;
// Device list
this._devices = [];
this._prevDevices = [];
// Here we'll store chosen UPS's variables
this._vars = {};
// Update devices
this.update({ forceRefresh: true });
// Get time between updates
this._interval = gsettings.get_int('update-time');
// Connect update on settings changed
this._settingsChangedId = gsettings.connect('changed', Lang.bind(this, function() {
// Update interval between updates
this._interval = gsettings.get_int('update-time');
// Remove timers
if (this._timer)
Mainloop.source_remove(this._timer);
if (this._forceRefresh)
Mainloop.source_remove(this._forceRefresh);
// Update devices
this.update({ forceRefresh: true });
// Update infos
this._updateTimer();
}));
this._updateTimer();
},
// getDevices: Get available devices
// if a host:port is given call a function to check whether new UPSes are found there and add them to the already listed ones
// otherwise, get stored UPSes or if there's no stored UPS try to find new ones at localhost:3493
// args = {
// hostname: hostname,
// port: port,
// notify: whether we have to notify new devices found/not found or not
// }
getDevices: function(args) {
let host, port, notify;
if (args) {
host = args.hostname;
port = args.port;
notify = args.notify;
}
// Save actual devices
this._prevDevices = JSON.parse(JSON.stringify(this._devices));
let got = [];
// Retrieve actual UPSes stored in schema
let stored = gsettings.get_string('ups');
// e.g.:
// got = [
// {
// name: 'name',
// host: 'host',
// port: 'port'
// },
// {
// name: 'name1',
// host: 'host1',
// port: 'port1',
// user: 'user1',
// pw: 'pw1'
// },
// ...
// ]
got = JSON.parse(!stored || stored == '' ? '[]' : stored);
if (!got.length)
this._state |= ErrorType.NO_UPS;
// If list is empty we'll check localhost:3493
if (!host && !got.length)
host = 'localhost';
if (!port && !got.length)
port = '3493';
if (host && port) {
let client = new Nut.NUTHelper({
host: host,
port: port
});
client.listUPS({
callback: Lang.bind(this, this._postGetDevices),
opts: [ notify ]
});
return;
}
// No new UPS to search
this._devices = got;
// Check which stored UPS is available
this._checkAll();
this._state &= ~ErrorType.NO_UPS;
},
// _postGetDevices: process the result of the *NUTHelper.listUPS()* function called by *this.getDevices()* and save found devices in schema and in *this._devices* as an array of objects:
// {
// name: upsname,
// host: upshostname,
// port: upsport,
// user: username,
// pw: password
// }
// then call *this._checkAll()* to fill the devices list with the availability of each stored UPS
// args = {
// host: hostname we tried to connect to,
// port: port used to connect,
// opts: optional data passed to the callback function, i.e. [ *notify* ],
// data: data got from client, parsed - NOTE: either *data* or *error* is passed to callback function, not both,
// error: errors got from client - NOTE: either *data* or *error* is passed to callback function, not both
// }
// args.*data* = {
// 'ups #1 name': 'ups #1's description',
// 'ups #1 name': 'ups #2's description',
// ...
// }
// args.*error* may be:
// - one of NUT's net protocol errors
// - 'ERR CLIENT-BUSY' if the TCPClient is busy doing something else when the method is called
// - 'ERR CONNECTION-ERROR'/'ERR CONNECTION-ERROR (<error>)' if the TCPClient had some problem connecting
// - 'ERR CONNECTION-CANCELLED' if you cancel (i.e. TCPClient.*destroy()*) the connection before it's connected
// - 'ERR WRITE-ERROR (<error>)' upon errors writing to the TCPClient
// - 'ERR READ-ERROR (<error>)' upon errors reading from the TCPClient
// - 'ERR TOO-FEW-ARGUMENTS' if you called a method without all the required data
// - 'ERR UNKNOWN' - unknown errors
_postGetDevices: function(args) {
let notify = args.opts[0];
let host = args.host;
let port = args.port;
let got = [];
let stored = gsettings.get_string('ups');
// e.g.:
// got = [
// {
// name: 'name',
// host: 'host',
// port: 'port'
// },
// {
// name: 'name1',
// host: 'host1',
// port: 'port1',
// user: 'user1',
// pw: 'pw1'
// },
// ...
// ]
got = JSON.parse(!stored || stored == '' ? '[]' : stored);
// Unable to find an UPS -> returns already available ones
if (args.error || !Object.keys(args.data).length) {
// Notify
if (notify)
Main.notifyError(
// TRANSLATORS: Notify title/description for error while searching new devices
_("NUT: Error!"),
_("Unable to find new devices at host %s:%s").format(host, port)
);
this._devices = got;
// No stored UPSes
if (!this._devices.length) {
this._state |= ErrorType.NO_UPS;
return;
}
// Check which stored UPS is available
this._checkAll();
this._state &= ~ErrorType.NO_UPS;
return;
}
// Store here the actual length of the retrieved list
let l = got.length;
// Found devices
let devices = args.data;
// Number of devices found
let foundDevices = 0;
// Iterate through each device
for (let device in devices) {
let ups = {};
ups.name = device;
ups.host = host;
ups.port = port;
// Check if we already have this UPS
let isNew = 1;
// Don't do anything if there aren't stored UPSes in the list
if (l > 0) {
for (let j = 0; j < got.length; j++) {
if (got[j].name != ups.name)
continue;
if (got[j].host != ups.host)
continue;
if (got[j].port != ups.port)
continue;
isNew = 0;
break;
}
}
// New UPS found!
if (isNew) {
got.push(ups);
// Notify
if (notify) {
Main.notify(
// TRANSLATORS: Notify title/description on every new device found
_("NUT: new device found"),
_("Found device %s at host %s:%s").format(ups.name, ups.host, ups.port)
);
foundDevices++;
}
}
}
// Notify
if (notify) {
// Devices found (more than 1)
if (foundDevices > 1)
Main.notify(
// TRANSLATORS: Notify title/description on new devices found (more than one)
_("NUT: new devices found"),
_("Found %d devices at host %s:%s").format(foundDevices, host, port)
);
// No devices found
else if (!foundDevices)
Main.notifyError(
// TRANSLATORS: Notify title/description for error while searching new devices
_("NUT: Error!"),
_("Unable to find new devices at host %s:%s").format(host, port)
);
}
// First item of got array is the 'chosen' UPS: preserve it
let chosen = got.shift();
// Then sort UPSes in alphabetical order (host:port, and then name)
got.sort(
function(a, b) {
return ((a.host + a.port + a.name) > (b.host + b.port + b.name)) ? 1 : (
((a.host + a.port + a.name) > (b.host + b.port + b.name)) ? -1 : 0
);
}
);
// And now restore chosen UPS
got.unshift(chosen);
// Store new devices in schema
if (got.length > l)
gsettings.set_string('ups', '%s'.format(JSON.stringify(got)));
this._devices = got;
// Check which stored UPS is available
this._checkAll();
this._state &= ~ErrorType.NO_UPS;
},
// _checkAll: Check which stored UPS is available
_checkAll: function() {
for (let i = 0; i < this._devices.length; i++) {
let item = this._devices[i];
// Just in case we lose the UPS..
item.av = 0;
let client = new Nut.NUTHelper({
host: item.host,
port: item.port
});
client.getVar({
upsName: item.name,
varName: 'ups.status',
callback: Lang.bind(this, this._checkUps),
opts: [ item ]
});
}
},
// _checkUps: callback function to tell whether a given UPS is available or not
// The currently processed UPS will get added to its properties its availability:
// - if available -> av = 1:
// e.g. {
// name: 'name',
// host: 'host',
// port: 'port',
// av: 1
// }
// - if not available -> av = 0:
// e.g. {
// name: 'name1',
// host: 'host1',
// port: 'port1',
// user: 'user1',
// pw: 'pw1',
// av: 0
// }
// args = {
// host: hostname we tried to connect to,
// port: port used to connect,
// upsName: name of the UPS,
// varName: name of the variable, i.e. 'ups.status',
// opts: optional data passed to the callback function, i.e. [ *device* ],
// data: data got from client, parsed - NOTE: either *data* or *error* is passed to callback function, not both,
// error: errors got from client - NOTE: either *data* or *error* is passed to callback function, not both
// }
// args.*data* = var's value (e.g. 'OL CHRG')
// args.*error* may be:
// - one of NUT's net protocol errors
// - 'ERR CLIENT-BUSY' if the TCPClient is busy doing something else when the method is called
// - 'ERR CONNECTION-ERROR'/'ERR CONNECTION-ERROR (<error>)' if the TCPClient had some problem connecting
// - 'ERR CONNECTION-CANCELLED' if you cancel (i.e. TCPClient.*destroy()*) the connection before it's connected
// - 'ERR WRITE-ERROR (<error>)' upon errors writing to the TCPClient
// - 'ERR READ-ERROR (<error>)' upon errors reading from the TCPClient
// - 'ERR TOO-FEW-ARGUMENTS' if you called a method without all the required data
// - 'ERR UNKNOWN' - unknown errors
_checkUps: function(args) {
// The UPS we're checking
let ups = args.opts[0];
if (args.error || !args.data.length)
ups.av = 0;
else
ups.av = 1;
let updateNeeded = true;
for (let i = 0; i < this._prevDevices.length; i++) {
let prev = this._prevDevices[i];
if (prev.name != ups.name)
continue;
if (prev.host != ups.host)
continue;
if (prev.port != ups.port)
continue;
if (prev.av != ups.av)
continue;
// Don't update the displayed list of devices if nothing changes
updateNeeded = false;
break;
}
if (updateNeeded && walnut) {
// Refresh the list of devices
walnut.refreshList();
}
},
// _getVars: Retrieve chosen UPS's variables
_getVars: function() {
// Reset status
this._state |= ErrorType.UPS_NA;
let client = new Nut.NUTHelper({
host: this._devices[0].host,
port: this._devices[0].port
});
client.listVars({
upsName: this._devices[0].name,
callback: Lang.bind(this, this._processVars)
});
},
// _processVars: callback function for *this._getVars()* - update status and vars
// args = {
// host: hostname we tried to connect to,
// port: port used to connect,
// upsName: name of the UPS,
// data: data got from client, parsed - NOTE: either *data* or *error* is passed to callback function, not both,
// error: errors got from client - NOTE: either *data* or *error* is passed to callback function, not both
// }
// args.*data* = {
// 'var.1 name': 'var.1's value',
// 'var.2 name': 'var.2's value',
// ...
// }
// args.*error* may be:
// - one of NUT's net protocol errors
// - 'ERR CLIENT-BUSY' if the TCPClient is busy doing something else when the method is called
// - 'ERR CONNECTION-ERROR'/'ERR CONNECTION-ERROR (<error>)' if the TCPClient had some problem connecting
// - 'ERR CONNECTION-CANCELLED' if you cancel (i.e. TCPClient.*destroy()*) the connection before it's connected
// - 'ERR WRITE-ERROR (<error>)' upon errors writing to the TCPClient
// - 'ERR READ-ERROR (<error>)' upon errors reading from the TCPClient
// - 'ERR TOO-FEW-ARGUMENTS' if you called a method without all the required data
// - 'ERR UNKNOWN' - unknown errors
_processVars: function(args) {
let hasChanged = false;
// The actually chosen device
let act = this._devices[0] || { name: '' };
// The device the currently processed function belongs to is no longer the chosen one
if (act.name != args.upsName || act.host != args.host || act.port != args.port)
return;
if (args.error || !Object.keys(args.data).length) {
this._state |= ErrorType.UPS_NA;
act.av = 0;
} else {
this._vars = args.data;
this._state &= ~ErrorType.UPS_NA;
act.av = 1;
// Update setvars/commands
let prev = this._prevChosen || { name: '' };
// Update only if something changed
if (act.name != prev.name || act.host != prev.host || act.port != prev.port || act.av != prev.av) {
if (upsrwDo)
upsrwDo.update();
if (upscmdDo)
upscmdDo.update();
hasChanged = true;
}
}
if (this._forceRefresh) {
Mainloop.source_remove(this._forceRefresh);
delete this._forceRefresh;
}
// Update panel/menu
if (walnut) {
walnut.refreshPanel();
if (walnut.menu.isOpen)
walnut.refreshMenu({ forceRefresh: hasChanged });
}
// Save actually processed device
this._prevChosen = JSON.parse(JSON.stringify(act));
},
// _updateTimer: update infos at a given interval
_updateTimer: function() {
this.update();
this._timer = Mainloop.timeout_add_seconds(this._interval, Lang.bind(this, this._updateTimer));
// Just in case we lose the UPS..
this._forceRefresh = Mainloop.timeout_add_seconds(2, Lang.bind(this, function() {
if (walnut) {
walnut.refreshPanel();
if (walnut.menu.isOpen)
walnut.refreshMenu({ forceRefresh: true });
}
delete this._forceRefresh;
}));
},
// update: Search for available devices and then for the first one's variables
// args = {
// forceRefresh: whether to do a refresh also if INTERVAL time isn't elapsed
// }
update: function(args) {
let forceRefresh = args ? args.forceRefresh : false;
// milliseconds
let now = Date.now();
// Last time the list has been updated
if (!this._lastTime)
this._lastTime = now;
// Update the list
if (forceRefresh || ((now - this._lastTime) > INTERVAL)) {
this.getDevices();
this._lastTime = now;
}
if (this._state & ErrorType.NO_UPS)
return;
this._getVars();
},
// getState: return actual UpscMonitor status (ErrorType.{NO_UPS, ..})
getState: function() {
return this._state;
},
// getList: return actual device list and their availability
getList: function() {
return this._devices;
},
// getVars: return actual chosen device's variables in an Object where keys are variables' names
// (e.g.: {
// 'battery.charge': '100',
// 'ups.status': 'OL',
// ...
// })
getVars: function() {
return this._vars;
},
// destroy: remove timer and disconnect signals
destroy: function() {
// Remove timers
if (this._timer)
Mainloop.source_remove(this._timer);
if (this._forceRefresh)
Mainloop.source_remove(this._forceRefresh);
// Disconnect settings-changed connection
gsettings.disconnect(this._settingsChangedId);
}
});
// UpscmdDo: handle instant commands
const UpscmdDo = new Lang.Class({
Name: 'UpscmdDo',
_init: function() {
this._hasCmds = false;
this._cmds = [];
},
update: function() {
// Reset status
this._hasCmds = false;
// Get actual device
this._device = upscMonitor.getList()[0];
// Don't do anything in case of errors
if (upscMonitor.getState() & (ErrorType.NO_UPS | ErrorType.UPS_NA))
return;
this._retrieveCmds();
},
// _retrieveCmds: get instant commands from the UPS
_retrieveCmds: function() {
let client = new Nut.NUTHelper({
host: this._device.host,
port: this._device.port
});
client.listCmds({
upsName: this._device.name,
callback: Lang.bind(this, this._processRetrievedCmds)
});
},
// _processRetrievedCmds: callback function for _retrieveCmds()
// args = {