Revert "Move icon name getter to cross-platform header"

This reverts commit d9318c9935.

Telegram/SourceFiles/platform/linux/notifications_manager_linux.cpp

@@ -11,6 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/options.h"
 #include "base/platform/base_platform_info.h"
 #include "base/platform/linux/base_linux_dbus_utilities.h"
+#include "platform/platform_specific.h"
 #include "core/application.h"
 #include "core/sandbox.h"
 #include "core/core_settings.h"
@@ -27,6 +28,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include <QtCore/QVersionNumber>
 #include <QtGui/QGuiApplication>
 
+#include <ksandbox.h>
+
 #include <xdgnotifications/xdgnotifications.hpp>
 
 #include <dlfcn.h>
@@ -547,7 +550,7 @@ void Manager::Private::showNotification(
 		notification.set_body(info.message.toStdString());
 
 		notification.set_icon(
-			Gio::ThemedIcon::new_(base::IconName().toStdString()));
+			Gio::ThemedIcon::new_(ApplicationIconName().toStdString()));
 
 		// for chat messages, according to
 		// https://docs.gtk.org/gio/enum.NotificationPriority.html
@@ -761,7 +764,7 @@ void Manager::Private::showNotification(
 					AppName.data(),
 					0,
 					(!hasImage
-						? base::IconName().toStdString()
+						? ApplicationIconName().toStdString()
 						: std::string()).c_str(),
 					(hasBodyMarkup || info.subtitle.isEmpty()
 						? info.title.toStdString()

Telegram/SourceFiles/platform/linux/specific_linux.cpp

@@ -486,7 +486,7 @@ void InstallLauncher() {
 
 	if (!QDir(icons).exists()) QDir().mkpath(icons);
 
-	const auto icon = icons + base::IconName() + u".png"_q;
+	const auto icon = icons + ApplicationIconName() + u".png"_q;
 	QFile::remove(icon);
 	if (QFile::copy(u":/gui/art/logo_256.png"_q, icon)) {
 		DEBUG_LOG(("App Info: Icon copied to '%1'").arg(icon));
@@ -684,7 +684,9 @@ void start() {
 	}
 
 	qputenv("PULSE_PROP_application.name", AppName.utf8());
-	qputenv("PULSE_PROP_application.icon_name", base::IconName().toLatin1());
+	qputenv(
+		"PULSE_PROP_application.icon_name",
+		ApplicationIconName().toUtf8());
 
 	GLib::set_prgname(cExeName().toStdString());
 	GLib::set_application_name(AppName.data());
@@ -755,6 +757,13 @@ QImage DefaultApplicationIcon() {
 	return Window::Logo();
 }
 
+QString ApplicationIconName() {
+	static const auto Result = KSandbox::isFlatpak()
+		? qEnvironmentVariable("FLATPAK_ID")
+		: u"telegram"_q;
+	return Result;
+}
+
 namespace ThirdParty {
 
 void start() {

Telegram/SourceFiles/platform/linux/tray_linux.cpp

@@ -88,7 +88,7 @@ QIcon IconGraphic::systemIcon() const {
 
 	const auto candidates = {
 		_new.monochrome ? PanelIconName(_new.counter, _new.muted) : QString(),
-		base::IconName(),
+		ApplicationIconName(),
 	};
 
 	for (const auto &candidate : candidates) {