From 3c86da78af93bdec3347add895a979e287ad0ed9 Mon Sep 17 00:00:00 2001
From: 23rd <23rd@vivaldi.net>
Date: Sun, 6 Jun 2021 23:34:32 +0300
Subject: [PATCH] Added volume support to SMC class.

---
 .../window/system_media_controls_manager.cpp     | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Telegram/SourceFiles/window/system_media_controls_manager.cpp b/Telegram/SourceFiles/window/system_media_controls_manager.cpp
index 60b3e921e5..e9039bb63a 100644
--- a/Telegram/SourceFiles/window/system_media_controls_manager.cpp
+++ b/Telegram/SourceFiles/window/system_media_controls_manager.cpp
@@ -10,6 +10,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/observer.h"
 #include "base/platform/base_platform_system_media_controls.h"
 #include "core/application.h"
+#include "core/core_settings.h"
 #include "data/data_document.h"
 #include "data/data_document_media.h"
 #include "data/data_file_origin.h"
@@ -190,6 +191,21 @@ SystemMediaControlsManager::SystemMediaControlsManager(
 		_controls->setEnabled(false);
 	}, _lifetime);
 
+	if (_controls->volumeSupported()) {
+		rpl::single(
+			Core::App().settings().songVolume()
+		) | rpl::then(
+			Core::App().settings().songVolumeChanges()
+		) | rpl::start_with_next([=](float64 volume) {
+			_controls->setVolume(volume);
+		}, _lifetime);
+
+		_controls->volumeChangeRequests(
+		) | rpl::start_with_next([](float64 volume) {
+			Core::App().settings().setSongVolume(volume);
+		}, _lifetime);
+	}
+
 }
 
 SystemMediaControlsManager::~SystemMediaControlsManager() = default;