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notifications_manager_linux.cpp
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notifications_manager_linux.cpp
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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "platform/linux/notifications_manager_linux.h"
#include "base/options.h"
#include "base/platform/base_platform_info.h"
#include "base/platform/linux/base_linux_glibmm_helper.h"
#include "base/platform/linux/base_linux_dbus_utilities.h"
#include "core/application.h"
#include "core/sandbox.h"
#include "core/core_settings.h"
#include "data/data_forum_topic.h"
#include "history/history.h"
#include "history/history_item.h"
#include "ui/empty_userpic.h"
#include "main/main_session.h"
#include "lang/lang_keys.h"
#include "base/weak_ptr.h"
#include "window/notifications_utilities.h"
#include "styles/style_window.h"
#include <QtCore/QBuffer>
#include <QtCore/QVersionNumber>
#include <QtGui/QGuiApplication>
#include <glibmm.h>
#include <giomm.h>
#include <dlfcn.h>
namespace Platform {
namespace Notifications {
namespace {
constexpr auto kService = "org.freedesktop.Notifications"_cs;
constexpr auto kObjectPath = "/org/freedesktop/Notifications"_cs;
constexpr auto kInterface = kService;
constexpr auto kPropertiesInterface = "org.freedesktop.DBus.Properties"_cs;
using namespace base::Platform;
struct ServerInformation {
QString name;
QString vendor;
QVersionNumber version;
QVersionNumber specVersion;
};
bool ServiceRegistered = false;
std::optional<ServerInformation> CurrentServerInformation;
QStringList CurrentCapabilities;
void Noexcept(Fn<void()> callback, Fn<void()> failed = nullptr) noexcept {
try {
callback();
return;
} catch (const std::exception &e) {
LOG(("Native Notification Error: %1").arg(
QString::fromStdString(e.what())));
}
if (failed) {
failed();
}
}
std::unique_ptr<base::Platform::DBus::ServiceWatcher> CreateServiceWatcher() {
try {
const auto connection = Gio::DBus::Connection::get_sync(
Gio::DBus::BusType::SESSION);
const auto activatable = [&] {
try {
return ranges::contains(
base::Platform::DBus::ListActivatableNames(connection),
std::string(kService),
&Glib::ustring::raw);
} catch (...) {
// avoid service restart loop in sandboxed environments
return true;
}
}();
return std::make_unique<base::Platform::DBus::ServiceWatcher>(
connection,
std::string(kService),
[=](
const Glib::ustring &service,
const Glib::ustring &oldOwner,
const Glib::ustring &newOwner) {
if (activatable && newOwner.empty()) {
crl::on_main([] {
Core::App().notifications().clearAll();
});
return;
}
crl::on_main([] {
Core::App().notifications().createManager();
});
});
} catch (...) {
}
return nullptr;
}
void StartServiceAsync(Fn<void()> callback) {
try {
const auto connection = Gio::DBus::Connection::get_sync(
Gio::DBus::BusType::SESSION);
DBus::StartServiceByNameAsync(
connection,
std::string(kService),
[=](Fn<DBus::StartReply()> result) {
Noexcept([&] {
try {
result(); // get the error if any
} catch (const Glib::Error &e) {
static const auto NotSupportedErrors = {
"org.freedesktop.DBus.Error.ServiceUnknown",
};
const auto errorName =
Gio::DBus::ErrorUtils::get_remote_error(e).raw();
if (!ranges::contains(
NotSupportedErrors,
errorName)) {
throw e;
}
}
});
crl::on_main(callback);
});
return;
} catch (...) {
}
crl::on_main(callback);
}
bool GetServiceRegistered() {
try {
const auto connection = Gio::DBus::Connection::get_sync(
Gio::DBus::BusType::SESSION);
const auto hasOwner = [&] {
try {
return DBus::NameHasOwner(
connection,
std::string(kService));
} catch (...) {
return false;
}
}();
static const auto activatable = [&] {
try {
return ranges::contains(
DBus::ListActivatableNames(connection),
std::string(kService),
&Glib::ustring::raw);
} catch (...) {
return false;
}
}();
return hasOwner || activatable;
} catch (...) {
}
return false;
}
void GetServerInformation(
Fn<void(const std::optional<ServerInformation> &)> callback) {
Noexcept([&] {
const auto connection = Gio::DBus::Connection::get_sync(
Gio::DBus::BusType::SESSION);
connection->call(
std::string(kObjectPath),
std::string(kInterface),
"GetServerInformation",
{},
[=](const Glib::RefPtr<Gio::AsyncResult> &result) {
Noexcept([&] {
auto reply = connection->call_finish(result);
const auto name = GlibVariantCast<Glib::ustring>(
reply.get_child(0));
const auto vendor = GlibVariantCast<Glib::ustring>(
reply.get_child(1));
const auto version = GlibVariantCast<Glib::ustring>(
reply.get_child(2));
const auto specVersion = GlibVariantCast<Glib::ustring>(
reply.get_child(3));
crl::on_main([=] {
callback(ServerInformation{
QString::fromStdString(name),
QString::fromStdString(vendor),
QVersionNumber::fromString(
QString::fromStdString(version)),
QVersionNumber::fromString(
QString::fromStdString(specVersion)),
});
});
}, [&] {
crl::on_main([=] { callback(std::nullopt); });
});
},
std::string(kService));
}, [&] {
crl::on_main([=] { callback(std::nullopt); });
});
}
void GetCapabilities(Fn<void(const QStringList &)> callback) {
Noexcept([&] {
const auto connection = Gio::DBus::Connection::get_sync(
Gio::DBus::BusType::SESSION);
connection->call(
std::string(kObjectPath),
std::string(kInterface),
"GetCapabilities",
{},
[=](const Glib::RefPtr<Gio::AsyncResult> &result) {
Noexcept([&] {
auto reply = connection->call_finish(result);
QStringList value;
ranges::transform(
GlibVariantCast<std::vector<Glib::ustring>>(
reply.get_child(0)),
ranges::back_inserter(value),
QString::fromStdString);
crl::on_main([=] {
callback(value);
});
}, [&] {
crl::on_main([=] { callback({}); });
});
},
std::string(kService));
}, [&] {
crl::on_main([=] { callback({}); });
});
}
void GetInhibited(Fn<void(bool)> callback) {
Noexcept([&] {
const auto connection = Gio::DBus::Connection::get_sync(
Gio::DBus::BusType::SESSION);
connection->call(
std::string(kObjectPath),
std::string(kPropertiesInterface),
"Get",
MakeGlibVariant(std::tuple{
Glib::ustring(std::string(kInterface)),
Glib::ustring("Inhibited"),
}),
[=](const Glib::RefPtr<Gio::AsyncResult> &result) {
Noexcept([&] {
auto reply = connection->call_finish(result);
const auto value = GlibVariantCast<bool>(
GlibVariantCast<Glib::VariantBase>(
reply.get_child(0)));
crl::on_main([=] {
callback(value);
});
}, [&] {
crl::on_main([=] { callback(false); });
});
},
std::string(kService));
}, [&] {
crl::on_main([=] { callback(false); });
});
}
ServerInformation CurrentServerInformationValue() {
return CurrentServerInformation.value_or(ServerInformation{});
}
Glib::ustring GetImageKey(const QVersionNumber &specificationVersion) {
const auto normalizedVersion = specificationVersion.normalized();
if (normalizedVersion.isNull()) {
LOG(("Native Notification Error: specification version is null"));
return {};
}
if (normalizedVersion >= QVersionNumber(1, 2)) {
return "image-data";
} else if (normalizedVersion == QVersionNumber(1, 1)) {
return "image_data";
}
return "icon_data";
}
bool UseGNotification() {
if (!Gio::Application::get_default()) {
return false;
}
if (Window::Notifications::OptionGNotification.value()) {
return true;
}
return KSandbox::isFlatpak() && !ServiceRegistered;
}
class NotificationData final : public base::has_weak_ptr {
public:
using NotificationId = Window::Notifications::Manager::NotificationId;
NotificationData(
not_null<Manager*> manager,
NotificationId id);
[[nodiscard]] bool init(
const QString &title,
const QString &subtitle,
const QString &msg,
Window::Notifications::Manager::DisplayOptions options);
NotificationData(const NotificationData &other) = delete;
NotificationData &operator=(const NotificationData &other) = delete;
NotificationData(NotificationData &&other) = delete;
NotificationData &operator=(NotificationData &&other) = delete;
~NotificationData();
void show();
void close();
void setImage(const QImage &image);
private:
const not_null<Manager*> _manager;
NotificationId _id;
Glib::RefPtr<Gio::Application> _application;
Glib::RefPtr<Gio::Notification> _notification;
Glib::RefPtr<Gio::DBus::Connection> _dbusConnection;
Glib::ustring _title;
Glib::ustring _body;
std::vector<Glib::ustring> _actions;
std::map<Glib::ustring, Glib::VariantBase> _hints;
Glib::ustring _imageKey;
uint _notificationId = 0;
uint _actionInvokedSignalId = 0;
uint _activationTokenSignalId = 0;
uint _notificationRepliedSignalId = 0;
uint _notificationClosedSignalId = 0;
void notificationClosed(uint id, uint reason);
void actionInvoked(uint id, const Glib::ustring &actionName);
void activationToken(uint id, const Glib::ustring &token);
void notificationReplied(uint id, const Glib::ustring &text);
};
using Notification = std::unique_ptr<NotificationData>;
NotificationData::NotificationData(
not_null<Manager*> manager,
NotificationId id)
: _manager(manager)
, _id(id)
, _application(UseGNotification()
? Gio::Application::get_default()
: nullptr) {
}
bool NotificationData::init(
const QString &title,
const QString &subtitle,
const QString &msg,
Window::Notifications::Manager::DisplayOptions options) {
if (_application) {
_notification = Gio::Notification::create(
subtitle.isEmpty()
? title.toStdString()
: subtitle.toStdString() + " (" + title.toStdString() + ')');
_notification->set_body(msg.toStdString());
_notification->set_icon(
Gio::ThemedIcon::create(base::IconName().toStdString()));
// glib 2.42+, we keep glib 2.40+ compatibility
static const auto set_priority = [] {
// reset dlerror after dlsym call
const auto guard = gsl::finally([] { dlerror(); });
return reinterpret_cast<decltype(&g_notification_set_priority)>(
dlsym(RTLD_DEFAULT, "g_notification_set_priority"));
}();
if (set_priority) {
// for chat messages, according to
// https://docs.gtk.org/gio/enum.NotificationPriority.html
set_priority(_notification->gobj(), G_NOTIFICATION_PRIORITY_HIGH);
}
// glib 2.70+, we keep glib 2.40+ compatibility
static const auto set_category = [] {
// reset dlerror after dlsym call
const auto guard = gsl::finally([] { dlerror(); });
return reinterpret_cast<decltype(&g_notification_set_category)>(
dlsym(RTLD_DEFAULT, "g_notification_set_category"));
}();
if (set_category) {
set_category(_notification->gobj(), "im.received");
}
const auto idTuple = _id.toTuple();
_notification->set_default_action(
"app.notification-activate",
idTuple);
if (!options.hideMarkAsRead) {
_notification->add_button(
tr::lng_context_mark_read(tr::now).toStdString(),
"app.notification-mark-as-read",
idTuple);
}
return true;
}
Noexcept([&] {
_dbusConnection = Gio::DBus::Connection::get_sync(
Gio::DBus::BusType::SESSION);
});
if (!_dbusConnection) {
return false;
}
const auto weak = base::make_weak(this);
const auto capabilities = CurrentCapabilities;
const auto signalEmitted = [=](
const Glib::RefPtr<Gio::DBus::Connection> &connection,
const Glib::ustring &sender_name,
const Glib::ustring &object_path,
const Glib::ustring &interface_name,
const Glib::ustring &signal_name,
Glib::VariantContainerBase parameters) {
Noexcept([&] {
if (signal_name == "ActionInvoked") {
const auto id = GlibVariantCast<uint>(
parameters.get_child(0));
const auto actionName = GlibVariantCast<Glib::ustring>(
parameters.get_child(1));
crl::on_main(weak, [=] { actionInvoked(id, actionName); });
} else if (signal_name == "ActivationToken") {
const auto id = GlibVariantCast<uint>(
parameters.get_child(0));
const auto token = GlibVariantCast<Glib::ustring>(
parameters.get_child(1));
crl::on_main(weak, [=] { activationToken(id, token); });
} else if (signal_name == "NotificationReplied") {
const auto id = GlibVariantCast<uint>(
parameters.get_child(0));
const auto text = GlibVariantCast<Glib::ustring>(
parameters.get_child(1));
crl::on_main(weak, [=] { notificationReplied(id, text); });
} else if (signal_name == "NotificationClosed") {
const auto id = GlibVariantCast<uint>(
parameters.get_child(0));
const auto reason = GlibVariantCast<uint>(
parameters.get_child(1));
crl::on_main(weak, [=] { notificationClosed(id, reason); });
}
});
};
_imageKey = GetImageKey(CurrentServerInformationValue().specVersion);
if (capabilities.contains(u"body-markup"_q)) {
_title = title.toStdString();
_body = subtitle.isEmpty()
? msg.toHtmlEscaped().toStdString()
: u"<b>%1</b>\n%2"_q.arg(
subtitle.toHtmlEscaped(),
msg.toHtmlEscaped()).toStdString();
} else {
_title = subtitle.isEmpty()
? title.toStdString()
: subtitle.toStdString() + " (" + title.toStdString() + ')';
_body = msg.toStdString();
}
if (capabilities.contains("actions")) {
_actions.push_back("default");
_actions.push_back(tr::lng_open_link(tr::now).toStdString());
if (!options.hideMarkAsRead) {
// icon name according to https://specifications.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
_actions.push_back("mail-mark-read");
_actions.push_back(
tr::lng_context_mark_read(tr::now).toStdString());
}
if (capabilities.contains("inline-reply")
&& !options.hideReplyButton) {
_actions.push_back("inline-reply");
_actions.push_back(
tr::lng_notification_reply(tr::now).toStdString());
_notificationRepliedSignalId =
_dbusConnection->signal_subscribe(
signalEmitted,
std::string(kService),
std::string(kInterface),
"NotificationReplied",
std::string(kObjectPath));
}
_actionInvokedSignalId = _dbusConnection->signal_subscribe(
signalEmitted,
std::string(kService),
std::string(kInterface),
"ActionInvoked",
std::string(kObjectPath));
_activationTokenSignalId = _dbusConnection->signal_subscribe(
signalEmitted,
std::string(kService),
std::string(kInterface),
"ActivationToken",
std::string(kObjectPath));
}
if (capabilities.contains("action-icons")) {
_hints["action-icons"] = Glib::Variant<bool>::create(true);
}
// suppress system sound if telegram sound activated,
// otherwise use system sound
if (capabilities.contains("sound")) {
if (Core::App().settings().soundNotify()) {
_hints["suppress-sound"] = Glib::Variant<bool>::create(true);
} else {
// sound name according to http://0pointer.de/public/sound-naming-spec.html
_hints["sound-name"] = Glib::Variant<Glib::ustring>::create(
"message-new-instant");
}
}
if (capabilities.contains("x-canonical-append")) {
_hints["x-canonical-append"] = Glib::Variant<Glib::ustring>::create(
"true");
}
_hints["category"] = Glib::Variant<Glib::ustring>::create("im.received");
_hints["desktop-entry"] = Glib::Variant<Glib::ustring>::create(
QGuiApplication::desktopFileName().chopped(8).toStdString());
_notificationClosedSignalId = _dbusConnection->signal_subscribe(
signalEmitted,
std::string(kService),
std::string(kInterface),
"NotificationClosed",
std::string(kObjectPath));
return true;
}
NotificationData::~NotificationData() {
if (_dbusConnection) {
if (_actionInvokedSignalId != 0) {
_dbusConnection->signal_unsubscribe(_actionInvokedSignalId);
}
if (_activationTokenSignalId != 0) {
_dbusConnection->signal_unsubscribe(_activationTokenSignalId);
}
if (_notificationRepliedSignalId != 0) {
_dbusConnection->signal_unsubscribe(_notificationRepliedSignalId);
}
if (_notificationClosedSignalId != 0) {
_dbusConnection->signal_unsubscribe(_notificationClosedSignalId);
}
}
}
void NotificationData::show() {
if (_application && _notification) {
_application->send_notification(
std::to_string(_id.contextId.sessionId)
+ '-'
+ std::to_string(_id.contextId.peerId.value)
+ '-'
+ std::to_string(_id.msgId.bare),
_notification);
return;
}
// a hack for snap's activation restriction
const auto weak = base::make_weak(this);
StartServiceAsync(crl::guard(weak, [=] {
const auto iconName = _imageKey.empty()
|| _hints.find(_imageKey) == end(_hints)
? Glib::ustring(base::IconName().toStdString())
: Glib::ustring();
const auto connection = _dbusConnection;
connection->call(
std::string(kObjectPath),
std::string(kInterface),
"Notify",
MakeGlibVariant(std::tuple{
Glib::ustring(std::string(AppName)),
uint(0),
iconName,
_title,
_body,
_actions,
_hints,
-1,
}),
[=](const Glib::RefPtr<Gio::AsyncResult> &result) {
Noexcept([&] {
auto reply = connection->call_finish(result);
const auto notificationId = GlibVariantCast<uint>(
reply.get_child(0));
crl::on_main(weak, [=] {
_notificationId = notificationId;
});
}, [&] {
crl::on_main(weak, [=] {
_manager->clearNotification(_id);
});
});
},
std::string(kService));
}));
}
void NotificationData::close() {
if (_application) {
_application->withdraw_notification(
std::to_string(_id.contextId.sessionId)
+ '-'
+ std::to_string(_id.contextId.peerId.value)
+ '-'
+ std::to_string(_id.msgId.bare));
_manager->clearNotification(_id);
return;
}
_dbusConnection->call(
std::string(kObjectPath),
std::string(kInterface),
"CloseNotification",
MakeGlibVariant(std::tuple{
_notificationId,
}),
{},
std::string(kService),
-1,
Gio::DBus::CallFlags::NO_AUTO_START);
_manager->clearNotification(_id);
}
void NotificationData::setImage(const QImage &image) {
if (_notification) {
const auto imageData = [&] {
QByteArray ba;
QBuffer buffer(&ba);
buffer.open(QIODevice::WriteOnly);
image.save(&buffer, "PNG");
return ba;
}();
_notification->set_icon(
Gio::BytesIcon::create(
Glib::Bytes::create(
imageData.constData(),
imageData.size())));
return;
}
if (_imageKey.empty()) {
return;
}
const auto convertedImage = image.hasAlphaChannel()
? image.convertToFormat(QImage::Format_RGBA8888)
: image.convertToFormat(QImage::Format_RGB888);
_hints[_imageKey] = MakeGlibVariant(std::tuple{
convertedImage.width(),
convertedImage.height(),
int(convertedImage.bytesPerLine()),
convertedImage.hasAlphaChannel(),
8,
convertedImage.hasAlphaChannel() ? 4 : 3,
std::vector<uchar>(
convertedImage.constBits(),
convertedImage.constBits() + convertedImage.sizeInBytes()),
});
}
void NotificationData::notificationClosed(uint id, uint reason) {
/*
* From: https://specifications.freedesktop.org/notification-spec/latest/ar01s09.html
* The reason the notification was closed
* 1 - The notification expired.
* 2 - The notification was dismissed by the user.
* 3 - The notification was closed by a call to CloseNotification.
* 4 - Undefined/reserved reasons.
*
* If the notification was dismissed by the user (reason == 2), the notification is not kept in notification history.
* We do not need to send a "CloseNotification" call later to clear it from history.
* Therefore we can drop the notification reference now.
* In all other cases we keep the notification reference so that we may clear the notification later from history,
* if the message for that notification is read (e.g. chat is opened or read from another device).
*/
if (id == _notificationId && reason == 2) {
_manager->clearNotification(_id);
}
}
void NotificationData::actionInvoked(
uint id,
const Glib::ustring &actionName) {
if (id != _notificationId) {
return;
}
if (actionName == "default") {
_manager->notificationActivated(_id);
} else if (actionName == "mail-mark-read") {
_manager->notificationReplied(_id, {});
}
}
void NotificationData::activationToken(uint id, const Glib::ustring &token) {
if (id == _notificationId) {
qputenv("XDG_ACTIVATION_TOKEN", QByteArray::fromStdString(token));
}
}
void NotificationData::notificationReplied(
uint id,
const Glib::ustring &text) {
if (id == _notificationId) {
_manager->notificationReplied(
_id,
{ QString::fromStdString(text), {} });
}
}
} // namespace
bool SkipToastForCustom() {
return false;
}
void MaybePlaySoundForCustom(Fn<void()> playSound) {
playSound();
}
void MaybeFlashBounceForCustom(Fn<void()> flashBounce) {
flashBounce();
}
bool WaitForInputForCustom() {
return true;
}
bool Supported() {
return ServiceRegistered || UseGNotification();
}
bool Enforced() {
// Wayland doesn't support positioning
// and custom notifications don't work here
return IsWayland()
|| (Gio::Application::get_default()
&& Window::Notifications::OptionGNotification.value());
}
bool ByDefault() {
// The capabilities are static, equivalent to 'body' and 'actions' only
if (UseGNotification()) {
return false;
}
// A list of capabilities that offer feature parity
// with custom notifications
static const auto NeededCapabilities = {
// To show message content
u"body"_q,
// To have buttons on notifications
u"actions"_q,
// To have quick reply
u"inline-reply"_q,
// To not to play sound with Don't Disturb activated
// (no, using sound capability is not a way)
u"inhibitions"_q,
};
return ranges::all_of(NeededCapabilities, [&](const auto &capability) {
return CurrentCapabilities.contains(capability);
});
}
void Create(Window::Notifications::System *system) {
static const auto ServiceWatcher = CreateServiceWatcher();
const auto managerSetter = [=] {
using ManagerType = Window::Notifications::ManagerType;
if ((Core::App().settings().nativeNotifications() || Enforced())
&& Supported()) {
if (system->manager().type() != ManagerType::Native) {
system->setManager(std::make_unique<Manager>(system));
}
} else if (Enforced()) {
if (system->manager().type() != ManagerType::Dummy) {
using DummyManager = Window::Notifications::DummyManager;
system->setManager(std::make_unique<DummyManager>(system));
}
} else if (system->manager().type() != ManagerType::Default) {
system->setManager(nullptr);
}
};
const auto counter = std::make_shared<int>(2);
const auto oneReady = [=] {
if (!--*counter) {
managerSetter();
}
};
// snap doesn't allow access when the daemon is not running :(
StartServiceAsync([=] {
ServiceRegistered = GetServiceRegistered();
if (!ServiceRegistered) {
CurrentServerInformation = std::nullopt;
CurrentCapabilities = QStringList{};
managerSetter();
return;
}
GetServerInformation([=](
const std::optional<ServerInformation> &result) {
CurrentServerInformation = result;
oneReady();
});
GetCapabilities([=](const QStringList &result) {
CurrentCapabilities = result;
oneReady();
});
});
}
class Manager::Private : public base::has_weak_ptr {
public:
explicit Private(not_null<Manager*> manager);
void showNotification(
not_null<PeerData*> peer,
MsgId topicRootId,
Ui::PeerUserpicView &userpicView,
MsgId msgId,
const QString &title,
const QString &subtitle,
const QString &msg,
DisplayOptions options);
void clearAll();
void clearFromItem(not_null<HistoryItem*> item);
void clearFromTopic(not_null<Data::ForumTopic*> topic);
void clearFromHistory(not_null<History*> history);
void clearFromSession(not_null<Main::Session*> session);
void clearNotification(NotificationId id);
void invokeIfNotInhibited(Fn<void()> callback);
~Private();
private:
const not_null<Manager*> _manager;
base::flat_map<
ContextId,
base::flat_map<MsgId, Notification>> _notifications;
Glib::RefPtr<Gio::DBus::Connection> _dbusConnection;
bool _inhibited = false;
uint _inhibitedSignalId = 0;
};
Manager::Private::Private(not_null<Manager*> manager)
: _manager(manager) {
const auto serverInformation = CurrentServerInformation;
const auto capabilities = CurrentCapabilities;
if (serverInformation.has_value()) {
LOG(("Notification daemon product name: %1")
.arg(serverInformation->name));
LOG(("Notification daemon vendor name: %1")
.arg(serverInformation->vendor));
LOG(("Notification daemon version: %1")
.arg(serverInformation->version.toString()));
LOG(("Notification daemon specification version: %1")
.arg(serverInformation->specVersion.toString()));
}
if (!capabilities.isEmpty()) {
LOG(("Notification daemon capabilities: %1")
.arg(capabilities.join(", ")));
}
if (capabilities.contains(u"inhibitions"_q)) {
Noexcept([&] {
_dbusConnection = Gio::DBus::Connection::get_sync(
Gio::DBus::BusType::SESSION);
});
if (!_dbusConnection) {
return;
}
const auto weak = base::make_weak(this);
GetInhibited(crl::guard(weak, [=](bool result) {
_inhibited = result;
}));
_inhibitedSignalId = _dbusConnection->signal_subscribe(
[=](
const Glib::RefPtr<Gio::DBus::Connection> &connection,
const Glib::ustring &sender_name,
const Glib::ustring &object_path,
const Glib::ustring &interface_name,
const Glib::ustring &signal_name,
Glib::VariantContainerBase parameters) {
Noexcept([&] {
const auto interface = GlibVariantCast<Glib::ustring>(
parameters.get_child(0));
if (interface != kInterface.data()) {
return;
}
const auto inhibited = GlibVariantCast<bool>(
GlibVariantCast<
std::map<Glib::ustring, Glib::VariantBase>
>(parameters.get_child(1)).at("Inhibited"));
crl::on_main(weak, [=] {
_inhibited = inhibited;
});
});
},