Add video/screencast pinned/unpinned toasts.

Telegram/CMakeLists.txt

@@ -287,6 +287,8 @@ PRIVATE
     calls/group/calls_group_panel.h
     calls/group/calls_group_settings.cpp
     calls/group/calls_group_settings.h
+    calls/group/calls_group_toasts.cpp
+    calls/group/calls_group_toasts.h
     calls/group/calls_group_viewport.cpp
     calls/group/calls_group_viewport.h
     calls/group/calls_group_viewport_opengl.cpp

Telegram/Resources/langs/lang.strings

@@ -2130,6 +2130,15 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_group_call_recording_started" = "Voice chat recording started.";
 "lng_group_call_recording_stopped" = "Voice chat recording stopped.";
 "lng_group_call_recording_saved" = "Audio saved to Saved Messages.";
+"lng_group_call_pinned_camera_me" = "Your video is pinned.";
+"lng_group_call_pinned_screen_me" = "Your screencast is pinned.";
+"lng_group_call_pinned_camera" = "{user}'s video is pinned.";
+"lng_group_call_pinned_screen" = "{user}'s screencast is pinned.";
+"lng_group_call_unpinned_camera_me" = "Your video is unpinned.";
+"lng_group_call_unpinned_screen_me" = "Your screencast is unpinned.";
+"lng_group_call_unpinned_camera" = "{user}'s video is unpinned.";
+"lng_group_call_unpinned_screen" = "{user}'s screencast is unpinned.";
+"lng_group_call_sure_screencast" = "{user} is screensharing. This action will make your screencast pinned for all participants.";
 "lng_group_call_recording_start_sure" = "Do you want to start recording this chat and save the result into an audio file?\n\nOther members will see the chat is being recorded.";
 "lng_group_call_recording_stop_sure" = "Do you want to stop recording this chat?";
 "lng_group_call_recording_start_field" = "Recording Title";

Telegram/SourceFiles/calls/group/calls_group_panel.cpp

@@ -12,6 +12,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "calls/group/calls_group_settings.h"
 #include "calls/group/calls_group_menu.h"
 #include "calls/group/calls_group_viewport.h"
+#include "calls/group/calls_group_toasts.h"
 #include "calls/group/ui/desktop_capture_choose_source.h"
 #include "ui/platform/ui_platform_window_title.h"
 #include "ui/platform/ui_platform_utility.h"
@@ -27,6 +28,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/layers/layer_manager.h"
 #include "ui/layers/generic_box.h"
 #include "ui/text/text_utilities.h"
+#include "ui/toast/toast.h"
 #include "ui/toasts/common_toasts.h"
 #include "ui/round_rect.h"
 #include "ui/special_buttons.h"
@@ -68,7 +70,6 @@ constexpr auto kRecordingOpacity = 0.6;
 constexpr auto kStartNoConfirmation = TimeId(10);
 constexpr auto kControlsBackgroundOpacity = 0.8;
 constexpr auto kOverrideActiveColorBgAlpha = 172;
-constexpr auto kErrorDuration = 2 * crl::time(1000);
 
 class InviteController final : public ParticipantsBoxController {
 public:
@@ -421,7 +422,8 @@ Panel::Panel(not_null<GroupCall*> call)
 			? Ui::CallMuteButtonType::ScheduledNotify
 			: Ui::CallMuteButtonType::ScheduledSilent),
 	}))
-, _hangup(widget(), st::groupCallHangup) {
+, _hangup(widget(), st::groupCallHangup)
+, _toasts(std::make_unique<Toasts>(this)) {
 	_layerBg->setStyleOverrides(&st::groupCallBox, &st::groupCallLayerBox);
 	_layerBg->setHideByBackgroundClick(true);
 
@@ -441,7 +443,6 @@ Panel::Panel(not_null<GroupCall*> call)
 	initControls();
 	initLayout();
 	showAndActivate();
-	setupToasts();
 }
 
 Panel::~Panel() {
@@ -456,12 +457,27 @@ void Panel::setupRealCallViewers() {
 	}, _window->lifetime());
 }
 
+not_null<GroupCall*> Panel::call() const {
+	return _call;
+}
+
 bool Panel::isActive() const {
 	return _window->isActiveWindow()
 		&& _window->isVisible()
 		&& !(_window->windowState() & Qt::WindowMinimized);
 }
 
+void Panel::showToast(TextWithEntities &&text, crl::time duration) {
+	if (const auto strong = _lastToast.get()) {
+		strong->hideAnimated();
+	}
+	_lastToast = Ui::ShowMultilineToast({
+		.parentOverride = widget(),
+		.text = std::move(text),
+		.duration = duration,
+	});
+}
+
 void Panel::minimize() {
 	_window->setWindowState(_window->windowState() | Qt::WindowMinimized);
 }
@@ -814,19 +830,16 @@ void Panel::refreshVideoButtons(std::optional<bool> overrideWideMode) {
 }
 
 void Panel::initShareAction() {
-	const auto showBox = [=](object_ptr<Ui::BoxContent> next) {
+	const auto showBoxCallback = [=](object_ptr<Ui::BoxContent> next) {
 		_layerBg->showBox(std::move(next));
 	};
-	const auto showToast = [=](QString text) {
+	const auto showToastCallback = [=](QString text) {
-		Ui::ShowMultilineToast({
+		showToast({ text });
-			.parentOverride = widget(),
-			.text = { text },
-		});
 	};
 	auto [shareLinkCallback, shareLinkLifetime] = ShareInviteLinkAction(
 		_peer,
-		showBox,
+		showBoxCallback,
-		showToast);
+		showToastCallback);
 	_callShareLinkCallback = [=, callback = std::move(shareLinkCallback)] {
 		if (_call->lookupReal()) {
 			callback();
@@ -1199,118 +1212,6 @@ void Panel::toggleWideControls(bool shown) {
 	});
 }
 
-void Panel::setupToasts() {
-	setupJoinAsChangedToasts();
-	setupTitleChangedToasts();
-	setupRequestedToSpeakToasts();
-	setupAllowedToSpeakToasts();
-	setupErrorToasts();
-}
-
-void Panel::setupJoinAsChangedToasts() {
-	_call->rejoinEvents(
-	) | rpl::filter([](RejoinEvent event) {
-		return (event.wasJoinAs != event.nowJoinAs);
-	}) | rpl::map([=] {
-		return _call->stateValue() | rpl::filter([](State state) {
-			return (state == State::Joined);
-		}) | rpl::take(1);
-	}) | rpl::flatten_latest() | rpl::start_with_next([=] {
-		Ui::ShowMultilineToast({
-			.parentOverride = widget(),
-			.text = tr::lng_group_call_join_as_changed(
-				tr::now,
-				lt_name,
-				Ui::Text::Bold(_call->joinAs()->name),
-				Ui::Text::WithEntities),
-		});
-	}, widget()->lifetime());
-}
-
-void Panel::setupTitleChangedToasts() {
-	_call->titleChanged(
-	) | rpl::filter([=] {
-		return (_call->lookupReal() != nullptr);
-	}) | rpl::map([=] {
-		return _peer->groupCall()->title().isEmpty()
-			? _peer->name
-			: _peer->groupCall()->title();
-	}) | rpl::start_with_next([=](const QString &title) {
-		Ui::ShowMultilineToast({
-			.parentOverride = widget(),
-			.text = tr::lng_group_call_title_changed(
-				tr::now,
-				lt_title,
-				Ui::Text::Bold(title),
-				Ui::Text::WithEntities),
-		});
-	}, widget()->lifetime());
-}
-
-void Panel::setupAllowedToSpeakToasts() {
-	_call->allowedToSpeakNotifications(
-	) | rpl::start_with_next([=] {
-		if (isActive()) {
-			Ui::ShowMultilineToast({
-				.parentOverride = widget(),
-				.text = { tr::lng_group_call_can_speak_here(tr::now) },
-			});
-		} else {
-			const auto real = _call->lookupReal();
-			const auto name = (real && !real->title().isEmpty())
-				? real->title()
-				: _peer->name;
-			Ui::ShowMultilineToast({
-				.text = tr::lng_group_call_can_speak(
-					tr::now,
-					lt_chat,
-					Ui::Text::Bold(name),
-					Ui::Text::WithEntities),
-			});
-		}
-	}, widget()->lifetime());
-}
-
-void Panel::setupRequestedToSpeakToasts() {
-	_call->mutedValue(
-	) | rpl::combine_previous(
-	) | rpl::start_with_next([=](MuteState was, MuteState now) {
-		if (was == MuteState::ForceMuted && now == MuteState::RaisedHand) {
-			Ui::ShowMultilineToast({
-				.parentOverride = widget(),
-				.text = tr::lng_group_call_tooltip_raised_hand(tr::now),
-			});
-		}
-	}, widget()->lifetime());
-}
-
-void Panel::setupErrorToasts() {
-	_call->errors(
-	) | rpl::start_with_next([=](Error error) {
-		const auto key = [&] {
-			switch (error) {
-			case Error::NoCamera: return tr::lng_call_error_no_camera;
-			case Error::ScreenFailed:
-				return tr::lng_group_call_failed_screen;
-			case Error::MutedNoCamera:
-				return tr::lng_group_call_muted_no_camera;
-			case Error::MutedNoScreen:
-				return tr::lng_group_call_muted_no_screen;
-			case Error::DisabledNoCamera:
-				return tr::lng_group_call_chat_no_camera;
-			case Error::DisabledNoScreen:
-				return tr::lng_group_call_chat_no_screen;
-			}
-			Unexpected("Error in Calls::Group::Panel::setupErrorToasts.");
-		}();
-		Ui::ShowMultilineToast({
-			.parentOverride = widget(),
-			.text = { key(tr::now) },
-			.duration = kErrorDuration,
-		});
-	}, widget()->lifetime());
-}
-
 void Panel::subscribeToChanges(not_null<Data::GroupCall*> real) {
 	const auto validateRecordingMark = [=](bool recording) {
 		if (!recording && _recordingMark) {
@@ -1328,10 +1229,7 @@ void Panel::subscribeToChanges(not_null<Data::GroupCall*> real) {
 			const auto skip = st::groupCallRecordingMarkSkip;
 			_recordingMark->resize(size + 2 * skip, size + 2 * skip);
 			_recordingMark->setClickedCallback([=] {
-				Ui::ShowMultilineToast({
+				showToast({ tr::lng_group_call_is_recorded(tr::now) });
-					.parentOverride = widget(),
-					.text = { tr::lng_group_call_is_recorded(tr::now) },
-				});
 			});
 			const auto animate = [=] {
 				const auto opaque = state->opaque;
@@ -1367,16 +1265,13 @@ void Panel::subscribeToChanges(not_null<Data::GroupCall*> real) {
 	) | rpl::distinct_until_changed(
 	) | rpl::start_with_next([=](bool recorded) {
 		validateRecordingMark(recorded);
-		Ui::ShowMultilineToast({
+		showToast((recorded
-			.parentOverride = widget(),
-			.text = (recorded
 			? tr::lng_group_call_recording_started
 			: _call->recordingStoppedByMe()
 			? tr::lng_group_call_recording_saved
 			: tr::lng_group_call_recording_stopped)(
 				tr::now,
-					Ui::Text::RichLangValue),
+				Ui::Text::RichLangValue));
-		});
 	}, widget()->lifetime());
 	validateRecordingMark(real->recordStartDate() != 0);
 
@@ -1448,20 +1343,17 @@ void Panel::chooseJoinAs() {
 	const auto callback = [=](JoinInfo info) {
 		_call->rejoinAs(info);
 	};
-	const auto showBox = [=](object_ptr<Ui::BoxContent> next) {
+	const auto showBoxCallback = [=](object_ptr<Ui::BoxContent> next) {
 		_layerBg->showBox(std::move(next));
 	};
-	const auto showToast = [=](QString text) {
+	const auto showToastCallback = [=](QString text) {
-		Ui::ShowMultilineToast({
+		showToast({ text });
-			.parentOverride = widget(),
-			.text = { text },
-		});
 	};
 	_joinAsProcess.start(
 		_peer,
 		context,
-		showBox,
+		showBoxCallback,
-		showToast,
+		showToastCallback,
 		callback,
 		_call->joinAs());
 }
@@ -1578,24 +1470,18 @@ void Panel::addMembers() {
 		}
 		const auto result = call->inviteUsers(users);
 		if (const auto user = std::get_if<not_null<UserData*>>(&result)) {
-			Ui::ShowMultilineToast({
+			showToast(tr::lng_group_call_invite_done_user(
-				.parentOverride = widget(),
-				.text = tr::lng_group_call_invite_done_user(
 				tr::now,
 				lt_user,
 				Ui::Text::Bold((*user)->firstName),
-					Ui::Text::WithEntities),
+				Ui::Text::WithEntities));
-			});
 		} else if (const auto count = std::get_if<int>(&result)) {
 			if (*count > 0) {
-				Ui::ShowMultilineToast({
+				showToast(tr::lng_group_call_invite_done_many(
-					.parentOverride = widget(),
-					.text = tr::lng_group_call_invite_done_many(
 					tr::now,
 					lt_count,
 					*count,
-						Ui::Text::RichLangValue),
+					Ui::Text::RichLangValue));
-				});
 			}
 		} else {
 			Unexpected("Result in GroupCall::inviteUsers.");

Telegram/SourceFiles/calls/group/calls_group_panel.h

@@ -42,6 +42,9 @@ class ScrollArea;
 class GenericBox;
 class LayerManager;
 class GroupCallScheduledLeft;
+namespace Toast {
+class Instance;
+} // namespace Toast
 namespace Platform {
 class TitleControls;
 } // namespace Platform
@@ -54,6 +57,7 @@ struct CallBodyLayout;
 
 namespace Calls::Group {
 
+class Toasts;
 class Members;
 class Viewport;
 enum class PanelMode;
@@ -63,7 +67,11 @@ public:
 	Panel(not_null<GroupCall*> call);
 	~Panel();
 
+	[[nodiscard]] not_null<GroupCall*> call() const;
 	[[nodiscard]] bool isActive() const;
+
+	void showToast(TextWithEntities &&text, crl::time duration = 0);
+
 	void minimize();
 	void close();
 	void showAndActivate();
@@ -88,12 +96,6 @@ private:
 	void setupScheduledLabels(rpl::producer<TimeId> date);
 	void setupMembers();
 	void setupVideo(not_null<Viewport*> viewport);
-	void setupToasts();
-	void setupJoinAsChangedToasts();
-	void setupTitleChangedToasts();
-	void setupRequestedToSpeakToasts();
-	void setupAllowedToSpeakToasts();
-	void setupErrorToasts();
 	void setupRealMuteButtonState(not_null<Data::GroupCall*> real);
 
 	bool handleClose();
@@ -196,6 +198,9 @@ private:
 	object_ptr<Ui::ImportantTooltip> _niceTooltip = { nullptr };
 	Fn<void()> _callShareLinkCallback;
 
+	const std::unique_ptr<Toasts> _toasts;
+	base::weak_ptr<Ui::Toast::Instance> _lastToast;
+
 	rpl::lifetime _peerLifetime;
 
 };

Telegram/SourceFiles/calls/group/calls_group_toasts.cpp

@@ -0,0 +1,175 @@
+/*
+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 "calls/group/calls_group_toasts.h"
+
+#include "calls/group/calls_group_call.h"
+#include "calls/group/calls_group_common.h"
+#include "calls/group/calls_group_panel.h"
+#include "data/data_peer.h"
+#include "data/data_group_call.h"
+#include "ui/text/text_utilities.h"
+#include "ui/toasts/common_toasts.h"
+#include "lang/lang_keys.h"
+
+namespace Calls::Group {
+namespace {
+
+constexpr auto kErrorDuration = 2 * crl::time(1000);
+
+using State = GroupCall::State;
+
+} // namespace
+
+Toasts::Toasts(not_null<Panel*> panel)
+: _panel(panel)
+, _call(panel->call()) {
+	setup();
+}
+
+void Toasts::setup() {
+	setupJoinAsChanged();
+	setupTitleChanged();
+	setupRequestedToSpeak();
+	setupAllowedToSpeak();
+	setupPinnedVideo();
+	setupError();
+}
+
+void Toasts::setupJoinAsChanged() {
+	_call->rejoinEvents(
+	) | rpl::filter([](RejoinEvent event) {
+		return (event.wasJoinAs != event.nowJoinAs);
+	}) | rpl::map([=] {
+		return _call->stateValue() | rpl::filter([](State state) {
+			return (state == State::Joined);
+		}) | rpl::take(1);
+	}) | rpl::flatten_latest() | rpl::start_with_next([=] {
+		_panel->showToast(tr::lng_group_call_join_as_changed(
+			tr::now,
+			lt_name,
+			Ui::Text::Bold(_call->joinAs()->name),
+			Ui::Text::WithEntities));
+	}, _lifetime);
+}
+
+void Toasts::setupTitleChanged() {
+	_call->titleChanged(
+	) | rpl::filter([=] {
+		return (_call->lookupReal() != nullptr);
+	}) | rpl::map([=] {
+		const auto peer = _call->peer();
+		return peer->groupCall()->title().isEmpty()
+			? peer->name
+			: peer->groupCall()->title();
+	}) | rpl::start_with_next([=](const QString &title) {
+		_panel->showToast(tr::lng_group_call_title_changed(
+			tr::now,
+			lt_title,
+			Ui::Text::Bold(title),
+			Ui::Text::WithEntities));
+	}, _lifetime);
+}
+
+void Toasts::setupAllowedToSpeak() {
+	_call->allowedToSpeakNotifications(
+	) | rpl::start_with_next([=] {
+		if (_panel->isActive()) {
+			_panel->showToast({
+				tr::lng_group_call_can_speak_here(tr::now),
+			});
+		} else {
+			const auto real = _call->lookupReal();
+			const auto name = (real && !real->title().isEmpty())
+				? real->title()
+				: _call->peer()->name;
+			Ui::ShowMultilineToast({
+				.text = tr::lng_group_call_can_speak(
+					tr::now,
+					lt_chat,
+					Ui::Text::Bold(name),
+					Ui::Text::WithEntities),
+			});
+		}
+	}, _lifetime);
+}
+
+void Toasts::setupPinnedVideo() {
+	_call->videoEndpointPinnedValue(
+	) | rpl::map([=](bool pinned) {
+		return pinned
+			? _call->videoEndpointLargeValue()
+			: rpl::single(_call->videoEndpointLarge());
+	}) | rpl::flatten_latest(
+	) | rpl::start_with_next([=](const VideoEndpoint &endpoint) {
+		const auto pinned = _call->videoEndpointPinned();
+		const auto peer = endpoint.peer;
+		if (!peer) {
+			return;
+		}
+		const auto text = [&] {
+			const auto me = (peer == _call->joinAs());
+			const auto camera = (endpoint.type == VideoEndpointType::Camera);
+			if (me) {
+				const auto key = camera
+					? (pinned
+						? tr::lng_group_call_pinned_camera_me
+						: tr::lng_group_call_unpinned_camera_me)
+					: (pinned
+						? tr::lng_group_call_pinned_screen_me
+						: tr::lng_group_call_unpinned_screen_me);
+				return key(tr::now);
+			}
+			const auto key = camera
+				? (pinned
+					? tr::lng_group_call_pinned_camera
+					: tr::lng_group_call_unpinned_camera)
+				: (pinned
+					? tr::lng_group_call_pinned_screen
+					: tr::lng_group_call_unpinned_screen);
+			return key(tr::now, lt_user, peer->shortName());
+		}();
+		_panel->showToast({ text });
+	}, _lifetime);
+}
+
+void Toasts::setupRequestedToSpeak() {
+	_call->mutedValue(
+	) | rpl::combine_previous(
+	) | rpl::start_with_next([=](MuteState was, MuteState now) {
+		if (was == MuteState::ForceMuted && now == MuteState::RaisedHand) {
+			_panel->showToast({
+				tr::lng_group_call_tooltip_raised_hand(tr::now),
+			});
+		}
+	}, _lifetime);
+}
+
+void Toasts::setupError() {
+	_call->errors(
+	) | rpl::start_with_next([=](Error error) {
+		const auto key = [&] {
+			switch (error) {
+			case Error::NoCamera: return tr::lng_call_error_no_camera;
+			case Error::ScreenFailed:
+				return tr::lng_group_call_failed_screen;
+			case Error::MutedNoCamera:
+				return tr::lng_group_call_muted_no_camera;
+			case Error::MutedNoScreen:
+				return tr::lng_group_call_muted_no_screen;
+			case Error::DisabledNoCamera:
+				return tr::lng_group_call_chat_no_camera;
+			case Error::DisabledNoScreen:
+				return tr::lng_group_call_chat_no_screen;
+			}
+			Unexpected("Error in Calls::Group::Toasts::setupErrorToasts.");
+		}();
+		_panel->showToast({ key(tr::now) }, kErrorDuration);
+	}, _lifetime);
+}
+
+} // namespace Calls::Group

Telegram/SourceFiles/calls/group/calls_group_toasts.h

@@ -0,0 +1,38 @@
+/*
+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 Calls {
+class GroupCall;
+} // namespace Calls
+
+namespace Calls::Group {
+
+class Panel;
+
+class Toasts final {
+public:
+	explicit Toasts(not_null<Panel*> panel);
+
+private:
+	void setup();
+	void setupJoinAsChanged();
+	void setupTitleChanged();
+	void setupRequestedToSpeak();
+	void setupAllowedToSpeak();
+	void setupPinnedVideo();
+	void setupError();
+
+	const not_null<Panel*> _panel;
+	const not_null<GroupCall*> _call;
+
+	rpl::lifetime _lifetime;
+
+};
+
+} // namespace Calls::Group

Telegram/SourceFiles/ui/controls/call_mute_button.cpp

@@ -1139,7 +1139,7 @@ void CallMuteButton::overridesColors(
 	const auto toInactive = IsInactive(toType);
 	const auto fromInactive = IsInactive(fromType);
 	if (toInactive && (progress == 1)) {
-		_colorOverrides.fire({ std::nullopt, std::nullopt });
+		_colorOverrides = CallButtonColors();
 		return;
 	}
 	const auto &fromStops = _colors.find(fromType)->second.stops;
@@ -1158,11 +1158,11 @@ void CallMuteButton::overridesColors(
 	}
 	const auto resultBg = anim::color(from, to, progress);
 	const auto resultRipple = anim::color(fromRipple, toRipple, progress);
-	_colorOverrides.fire({ resultBg, resultRipple });
+	_colorOverrides = CallButtonColors{ resultBg, resultRipple };
 }
 
 rpl::producer<CallButtonColors> CallMuteButton::colorOverrides() const {
-	return _colorOverrides.events();
+	return _colorOverrides.value();
 }
 
 not_null<RpWidget*> CallMuteButton::outer() const {

Telegram/SourceFiles/ui/controls/call_mute_button.h

@@ -11,6 +11,7 @@
 #include "ui/effects/cross_line.h"
 #include "ui/effects/gradient.h"
 #include "ui/effects/radial_animation.h"
+#include "ui/widgets/call_button.h"
 #include "ui/widgets/tooltip.h"
 #include "lottie/lottie_icon.h"
 
@@ -31,8 +32,6 @@ class FlatLabel;
 class RpWidget;
 class AnimatedLabel;
 
-struct CallButtonColors;
-
 enum class CallMuteButtonType {
 	Connecting,
 	Active,
@@ -179,7 +178,7 @@ private:
 	Animations::Simple _switchAnimation;
 	Animations::Simple _shakeAnimation;
 
-	rpl::event_stream<CallButtonColors> _colorOverrides;
+	rpl::variable<CallButtonColors> _colorOverrides;
 
 };
 

Telegram/SourceFiles/ui/toasts/common_toasts.cpp

@@ -12,7 +12,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 namespace Ui {
 
-void ShowMultilineToast(MultilineToastArgs &&args) {
+base::weak_ptr<Toast::Instance> ShowMultilineToast(
+		MultilineToastArgs &&args) {
 	auto config = Ui::Toast::Config{
 		.text = std::move(args.text),
 		.st = &st::defaultMultilineToast,
@@ -21,11 +22,9 @@ void ShowMultilineToast(MultilineToastArgs &&args) {
 			: Ui::Toast::kDefaultDuration),
 		.multiline = true,
 	};
-	if (args.parentOverride) {
+	return args.parentOverride
-		Ui::Toast::Show(args.parentOverride, std::move(config));
+		? Ui::Toast::Show(args.parentOverride, std::move(config))
-	} else {
+		: Ui::Toast::Show(std::move(config));
-		Ui::Toast::Show(std::move(config));
-	}
 }
 
 } // namespace Ui

Telegram/SourceFiles/ui/toasts/common_toasts.h

@@ -8,8 +8,12 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #pragma once
 
 #include "ui/text/text_entity.h"
+#include "base/weak_ptr.h"
 
 namespace Ui {
+namespace Toast {
+class Instance;
+} // namespace Toast
 
 struct MultilineToastArgs {
 	QWidget *parentOverride = nullptr;
@@ -17,6 +21,7 @@ struct MultilineToastArgs {
 	crl::time duration = 0;
 };
 
-void ShowMultilineToast(MultilineToastArgs &&args);
+base::weak_ptr<Toast::Instance> ShowMultilineToast(
+	MultilineToastArgs &&args);
 
 } // namespace Ui