Added convenient utils to pass and change notifications volume from ui.

Telegram/CMakeLists.txt

@@ -523,6 +523,8 @@ PRIVATE
     data/notify/data_notify_settings.h
     data/notify/data_peer_notify_settings.cpp
     data/notify/data_peer_notify_settings.h
+    data/notify/data_peer_notify_volume.cpp
+    data/notify/data_peer_notify_volume.h
     data/stickers/data_custom_emoji.cpp
     data/stickers/data_custom_emoji.h
     data/stickers/data_stickers_set.cpp

Telegram/SourceFiles/data/notify/data_peer_notify_volume.cpp

@@ -0,0 +1,112 @@
+/*
+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 "data/notify/data_peer_notify_volume.h"
+
+#include "data/data_peer.h"
+#include "data/data_thread.h"
+#include "data/notify/data_peer_notify_settings.h"
+#include "main/main_session.h"
+#include "main/main_session_settings.h"
+#include "platform/platform_notifications_manager.h"
+#include "settings/settings_common.h"
+#include "ui/vertical_list.h"
+#include "ui/widgets/continuous_sliders.h"
+#include "ui/widgets/labels.h"
+#include "ui/wrap/slide_wrap.h"
+#include "ui/wrap/vertical_layout.h"
+#include "styles/style_settings.h"
+
+namespace Data {
+
+Data::VolumeController DefaultRingtonesVolumeController(
+		not_null<Main::Session*> session,
+		Data::DefaultNotify defaultNotify) {
+	return Data::VolumeController{
+		.volume = [=]() -> ushort {
+			const auto volume = session->settings().ringtoneVolume(
+				defaultNotify);
+			return volume ? volume : 100;
+		},
+		.saveVolume = [=](ushort volume) {
+			session->settings().setRingtoneVolume(defaultNotify, volume);
+			session->saveSettingsDelayed();
+		}};
+}
+
+Data::VolumeController ThreadRingtonesVolumeController(
+		not_null<Data::Thread*> thread) {
+	return Data::VolumeController{
+		.volume = [=]() -> ushort {
+			const auto volume = thread->session().settings().ringtoneVolume(
+				thread->peer()->id,
+				thread->topicRootId(),
+				thread->monoforumPeerId());
+			return volume ? volume : 100;
+		},
+		.saveVolume = [=](ushort volume) {
+			thread->session().settings().setRingtoneVolume(
+				thread->peer()->id,
+				thread->topicRootId(),
+				thread->monoforumPeerId(),
+				volume);
+			thread->session().saveSettingsDelayed();
+		}};
+}
+
+} // namespace Data
+
+namespace Ui {
+
+void AddRingtonesVolumeSlider(
+		not_null<Ui::VerticalLayout*> container,
+		rpl::producer<bool> toggleOn,
+		rpl::producer<QString> subtitle,
+		Data::VolumeController volumeController) {
+	if (!Platform::Notifications::VolumeSupported()) {
+		return;
+	}
+	Expects(volumeController.volume && volumeController.saveVolume);
+
+	const auto volumeWrap = container->add(
+		object_ptr<Ui::SlideWrap<Ui::VerticalLayout>>(
+			container,
+			object_ptr<Ui::VerticalLayout>(container)));
+	volumeWrap->toggleOn(std::move(toggleOn), anim::type::normal);
+	volumeWrap->finishAnimating();
+
+	Ui::AddSubsectionTitle(volumeWrap->entity(), std::move(subtitle));
+	auto sliderWithLabel = Settings::MakeSliderWithLabel(
+		volumeWrap->entity(),
+		st::settingsScale,
+		st::settingsScaleLabel,
+		st::normalFont->spacew * 2,
+		st::settingsScaleLabel.style.font->width("100%"),
+		true);
+	const auto slider = sliderWithLabel.slider;
+	const auto label = sliderWithLabel.label;
+
+	volumeWrap->entity()->add(
+		std::move(sliderWithLabel.widget),
+		st::settingsBigScalePadding);
+
+	const auto updateLabel = [=](int volume) {
+		label->setText(QString::number(volume) + '%');
+	};
+
+	slider->setPseudoDiscrete(
+		100,
+		[=](int index) { return index + 1; },
+		int(volumeController.volume()),
+		updateLabel,
+		[saveVolume = volumeController.saveVolume](int volume) {
+			saveVolume(volume);
+		});
+	updateLabel(volumeController.volume());
+}
+
+} // namespace Ui

Telegram/SourceFiles/data/notify/data_peer_notify_volume.h

@@ -0,0 +1,45 @@
+/*
+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
+*/
+#pragma once
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace Ui {
+class VerticalLayout;
+} // namespace Ui
+
+namespace Data {
+
+enum class DefaultNotify : uint8_t;
+class Thread;
+
+struct VolumeController {
+	Fn<ushort()> volume = nullptr;
+	Fn<void(ushort)> saveVolume = nullptr;
+};
+
+[[nodiscard]] VolumeController DefaultRingtonesVolumeController(
+	not_null<Main::Session*> session,
+	Data::DefaultNotify defaultNotify);
+
+[[nodiscard]] VolumeController ThreadRingtonesVolumeController(
+	not_null<Data::Thread*> thread);
+
+} // namespace Data
+
+namespace Ui {
+
+void AddRingtonesVolumeSlider(
+	not_null<Ui::VerticalLayout*> container,
+	rpl::producer<bool> toggleOn,
+	rpl::producer<QString> subtitle,
+	Data::VolumeController volumeController);
+
+} // namespace Ui