Simplified creation of label with custom emoji.

Telegram/CMakeLists.txt

@@ -1474,6 +1474,8 @@ PRIVATE
     ui/search_field_controller.h
     ui/text/format_song_document_name.cpp
     ui/text/format_song_document_name.h
+    ui/widgets/label_with_custom_emoji.cpp
+    ui/widgets/label_with_custom_emoji.h
     ui/unread_badge.cpp
     ui/unread_badge.h
     window/main_window.cpp

Telegram/SourceFiles/boxes/gift_premium_box.cpp

@@ -16,7 +16,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/peers/prepare_short_info_box.h"
 #include "boxes/peers/replace_boost_box.h" // BoostsForGift.
 #include "boxes/premium_preview_box.h" // ShowPremiumPreviewBox.
-#include "core/ui_integration.h" // Core::MarkedTextContext.
 #include "data/data_boosts.h"
 #include "data/data_changes.h"
 #include "data/data_channel.h"
@@ -48,6 +47,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/toast/toast.h"
 #include "ui/widgets/checkbox.h"
 #include "ui/widgets/gradient_round_button.h"
+#include "ui/widgets/label_with_custom_emoji.h"
 #include "ui/wrap/padding_wrap.h"
 #include "ui/wrap/slide_wrap.h"
 #include "ui/wrap/table_layout.h"
@@ -319,21 +319,20 @@ void GiftBox(
 			std::move(titleLabel)),
 		st::premiumGiftTitlePadding);
 
-	auto textLabel = object_ptr<Ui::FlatLabel>(box, st::premiumPreviewAbout);
-	tr::lng_premium_gift_about(
-		lt_user,
-		user->session().changes().peerFlagsValue(
-			user,
-			Data::PeerUpdate::Flag::Name
-		) | rpl::map([=] { return TextWithEntities{ user->firstName }; }),
-		Ui::Text::RichLangValue
-	) | rpl::map(
-		BoostsForGiftText({ user })
-	) | rpl::start_with_next([
-			raw = textLabel.data(),
-			session = &user->session()](const TextWithEntities &t) {
-		raw->setMarkedText(t, Core::MarkedTextContext{ .session = session });
-	}, textLabel->lifetime());
+	auto textLabel = Ui::CreateLabelWithCustomEmoji(
+		box,
+		tr::lng_premium_gift_about(
+			lt_user,
+			user->session().changes().peerFlagsValue(
+				user,
+				Data::PeerUpdate::Flag::Name
+			) | rpl::map([=] { return TextWithEntities{ user->firstName }; }),
+			Ui::Text::RichLangValue
+		) | rpl::map(
+			BoostsForGiftText({ user })
+		),
+		{ .session = &user->session() },
+		st::premiumPreviewAbout);
 	textLabel->setTextColorOverride(stTitle.textFg->c);
 	textLabel->resizeToWidth(available);
 	box->addRow(
@@ -536,14 +535,12 @@ void GiftsBox(
 		const auto label = box->addRow(
 			object_ptr<Ui::CenterWrap<Ui::FlatLabel>>(
 				box,
-				object_ptr<Ui::FlatLabel>(box, st::premiumPreviewAbout)),
+				Ui::CreateLabelWithCustomEmoji(
+					box,
+					std::move(text),
+					{ .session = session },
+					st::premiumPreviewAbout)),
 			padding)->entity();
-		std::move(
-			text
-		) | rpl::start_with_next([=](const TextWithEntities &t) {
-			using namespace Core;
-			label->setMarkedText(t, MarkedTextContext{ .session = session });
-		}, label->lifetime());
 		label->setTextColorOverride(stTitle.textFg->c);
 		label->resizeToWidth(available);
 	}

Telegram/SourceFiles/info/channel_statistics/earn/info_earn_inner_widget.cpp

@@ -13,7 +13,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/peers/edit_peer_color_box.h" // AddLevelBadge.
 #include "chat_helpers/stickers_emoji_pack.h"
 #include "core/application.h"
-#include "core/ui_integration.h" // Core::MarkedTextContext.
 #include "data/data_channel.h"
 #include "data/data_premium_limits.h"
 #include "data/data_session.h"
@@ -31,6 +30,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_session.h"
 #include "statistics/chart_widget.h"
 #include "ui/basic_click_handlers.h"
+#include "ui/widgets/label_with_custom_emoji.h"
 #include "ui/boxes/boost_box.h"
 #include "ui/controls/userpic_button.h"
 #include "ui/effects/animation_value_f.h"
@@ -334,23 +334,21 @@ void InnerWidget::fill() {
 			st::channelEarnLearnArrowMargins,
 			false));
 	const auto addAboutWithLearn = [&](const tr::phrase<lngtag_link> &text) {
-		auto label = object_ptr<Ui::FlatLabel>(
+		auto label = Ui::CreateLabelWithCustomEmoji(
 			container,
-			st::boxDividerLabel);
-		const auto raw = label.data();
-		text(
-			lt_link,
-			tr::lng_channel_earn_about_link(
-				lt_emoji,
-				rpl::single(arrow),
+			text(
+				lt_link,
+				tr::lng_channel_earn_about_link(
+					lt_emoji,
+					rpl::single(arrow),
+					Ui::Text::RichLangValue
+				) | rpl::map([](TextWithEntities text) {
+					return Ui::Text::Link(std::move(text), 1);
+				}),
 				Ui::Text::RichLangValue
-			) | rpl::map([](TextWithEntities text) {
-				return Ui::Text::Link(std::move(text), 1);
-			}),
-			Ui::Text::RichLangValue
-		) | rpl::start_with_next([=](const TextWithEntities &text) {
-			raw->setMarkedText(text, makeContext(raw));
-		}, label->lifetime());
+			),
+			{ .session = session },
+			st::boxDividerLabel);
 		label->setLink(1, std::make_shared<LambdaClickHandler>([=] {
 			_show->showBox(Box([=](not_null<Ui::GenericBox*> box) {
 				box->setNoContentMargin(true);
@@ -454,17 +452,16 @@ void InnerWidget::fill() {
 					const auto l = box->addRow(
 						object_ptr<Ui::CenterWrap<Ui::FlatLabel>>(
 							content,
-							object_ptr<Ui::FlatLabel>(
+							Ui::CreateLabelWithCustomEmoji(
 								content,
+								tr::lng_channel_earn_learn_coin_title(
+									lt_emoji,
+									rpl::single(
+										Ui::Text::Link(bigCurrencyIcon, 1)),
+									Ui::Text::RichLangValue
+								),
+								{ .session = session },
 								st::boxTitle)))->entity();
-					tr::lng_channel_earn_learn_coin_title(
-						lt_emoji,
-						rpl::single(
-							Ui::Text::Link(bigCurrencyIcon, 1)),
-						Ui::Text::RichLangValue
-					) | rpl::start_with_next([=](TextWithEntities t) {
-						l->setMarkedText(std::move(t), makeContext(l));
-					}, l->lifetime());
 					const auto diamonds = l->lifetime().make_state<int>(0);
 					l->setLink(1, std::make_shared<LambdaClickHandler>([=] {
 						const auto count = (*diamonds);
@@ -480,25 +477,23 @@ void InnerWidget::fill() {
 				Ui::AddSkip(content);
 				{
 					const auto label = box->addRow(
-						object_ptr<Ui::FlatLabel>(
+						Ui::CreateLabelWithCustomEmoji(
 							content,
+							tr::lng_channel_earn_learn_coin_about(
+								lt_link,
+								tr::lng_channel_earn_about_link(
+									lt_emoji,
+									rpl::single(arrow),
+									Ui::Text::RichLangValue
+								) | rpl::map([](TextWithEntities text) {
+									return Ui::Text::Link(std::move(text), 1);
+								}),
+								Ui::Text::RichLangValue
+							),
+							{ .session = session },
 							st::channelEarnLearnDescription));
-					tr::lng_channel_earn_learn_coin_about(
-						lt_link,
-						tr::lng_channel_earn_about_link(
-							lt_emoji,
-							rpl::single(arrow),
-							Ui::Text::RichLangValue
-						) | rpl::map([](TextWithEntities text) {
-							return Ui::Text::Link(std::move(text), 1);
-						}),
-						Ui::Text::RichLangValue
-					) | rpl::start_with_next([=, l = label](
-							TextWithEntities t) {
-						l->setMarkedText(std::move(t), makeContext(l));
-						l->resizeToWidth(box->width()
-							- rect::m::sum::h(st::boxRowPadding));
-					}, label->lifetime());
+					label->resizeToWidth(box->width()
+						- rect::m::sum::h(st::boxRowPadding));
 					label->setLink(
 						1,
 						LearnMoreCurrencyLink(

Telegram/SourceFiles/menu/menu_sponsored.cpp

@@ -9,7 +9,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "boxes/premium_preview_box.h"
 #include "chat_helpers/compose/compose_show.h"
-#include "core/ui_integration.h" // Core::MarkedTextContext.
 #include "data/components/sponsored_messages.h"
 #include "data/data_premium_limits.h"
 #include "data/data_session.h"
@@ -25,6 +24,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/vertical_list.h"
 #include "ui/widgets/buttons.h"
 #include "ui/widgets/popup_menu.h"
+#include "ui/widgets/label_with_custom_emoji.h"
 #include "styles/style_channel_earn.h"
 #include "styles/style_chat.h"
 #include "styles/style_layers.h"
@@ -169,31 +169,23 @@ void AboutBox(
 				st::topicButtonArrow,
 				st::channelEarnLearnArrowMargins,
 				false));
-		const auto label = box->addRow(
-			object_ptr<Ui::FlatLabel>(
+		const auto available = box->width()
+			- rect::m::sum::h(st::boxRowPadding);
+		box->addRow(
+			Ui::CreateLabelWithCustomEmoji(
 				content,
-				st::channelEarnLearnDescription));
-		tr::lng_sponsored_revenued_footer_description(
-			lt_link,
-			tr::lng_channel_earn_about_link(
-				lt_emoji,
-				rpl::single(arrow),
-				Ui::Text::RichLangValue
-			) | rpl::map([=](TextWithEntities text) {
-				return Ui::Text::Link(std::move(text), kUrl.utf16());
-			}),
-			Ui::Text::RichLangValue
-		) | rpl::start_with_next([=, l = label](
-				TextWithEntities t) {
-			l->setMarkedText(
-				std::move(t),
-				Core::MarkedTextContext{
-					.session = session,
-					.customEmojiRepaint = [=] { l->update(); },
-				});
-			l->resizeToWidth(box->width()
-				- rect::m::sum::h(st::boxRowPadding));
-		}, label->lifetime());
+				tr::lng_sponsored_revenued_footer_description(
+					lt_link,
+					tr::lng_channel_earn_about_link(
+						lt_emoji,
+						rpl::single(arrow),
+						Ui::Text::RichLangValue
+					) | rpl::map([=](TextWithEntities text) {
+						return Ui::Text::Link(std::move(text), kUrl.utf16());
+					}),
+					Ui::Text::RichLangValue),
+				{ .session = session },
+				st::channelEarnLearnDescription))->resizeToWidth(available);
 	}
 	Ui::AddSkip(content);
 	Ui::AddSkip(content);

Telegram/SourceFiles/ui/widgets/label_with_custom_emoji.cpp

@@ -0,0 +1,32 @@
+/*
+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 "ui/widgets/label_with_custom_emoji.h"
+
+#include "core/ui_integration.h"
+#include "ui/widgets/labels.h"
+#include "styles/style_widgets.h"
+
+namespace Ui {
+
+object_ptr<Ui::FlatLabel> CreateLabelWithCustomEmoji(
+		QWidget *parent,
+		rpl::producer<TextWithEntities> &&text,
+		Core::MarkedTextContext context,
+		const style::FlatLabel &st) {
+	auto label = object_ptr<Ui::FlatLabel>(parent, st);
+	const auto raw = label.data();
+	if (!context.customEmojiRepaint) {
+		context.customEmojiRepaint = [=] { raw->update(); };
+	}
+	std::move(text) | rpl::start_with_next([=](const TextWithEntities &text) {
+		raw->setMarkedText(text, context);
+	}, label->lifetime());
+	return label;
+}
+
+} // namespace Ui

Telegram/SourceFiles/ui/widgets/label_with_custom_emoji.h

@@ -0,0 +1,35 @@
+/*
+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
+
+#include "core/ui_integration.h" // Core::MarkedTextContext.
+
+template <typename Object>
+class object_ptr;
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace style {
+struct FlatLabel;
+} // namespace style
+
+namespace Ui {
+class FlatLabel;
+} // namespace Ui
+
+namespace Ui {
+
+[[nodiscard]] object_ptr<Ui::FlatLabel> CreateLabelWithCustomEmoji(
+	QWidget *parent,
+	rpl::producer<TextWithEntities> &&text,
+	Core::MarkedTextContext context,
+	const style::FlatLabel &st);
+
+} // namespace Ui