Show info about popular apps section.

Telegram/Resources/langs/lang.strings

@@ -5623,6 +5623,15 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_channels_recommended" = "Similar channels";
 "lng_bot_apps_your" = "Apps you use";
 "lng_bot_apps_popular" = "Grossing apps";
+"lng_bot_apps_which" = "Which apps are included here? {link}";
+"lng_bot_apps_which_link" = "Learn >";
+
+"lng_popular_apps_info_title" = "Top Mini Apps";
+"lng_popular_apps_info_text" = "This catalogue ranks mini apps based on their daily revenue, measured in Stars. To be listed, developers must set their main mini apps in {bot} (as described {link}), have over **1,000** daily users, and earn a daily revenue above **1,000** Stars, based on the weekly average.";
+"lng_popular_apps_info_bot" = "@botfather";
+"lng_popular_apps_info_here" = "here";
+"lng_popular_apps_info_url" = "https://core.telegram.org/bots/webapps#launching-the-main-mini-app";
+"lng_popular_apps_info_confirm" = "Understood";
 
 "lng_font_box_title" = "Choose font family";
 "lng_font_default" = "Default";

Telegram/SourceFiles/core/local_url_handlers.cpp

@@ -965,6 +965,17 @@ bool ShowStarsExamples(
 	return true;
 }
 
+bool ShowPopularAppsAbout(
+		Window::SessionController *controller,
+		const Match &match,
+		const QVariant &context) {
+	if (!controller) {
+		return false;
+	}
+	controller->show(Dialogs::PopularAppsAboutBox(controller));
+	return true;
+}
+
 void ExportTestChatTheme(
 		not_null<Window::SessionController*> controller,
 		not_null<const Data::CloudTheme*> theme) {
@@ -1431,6 +1442,10 @@ const std::vector<LocalUrlHandler> &InternalUrlHandlers() {
 			u"^stars_examples$"_q,
 			ShowStarsExamples,
 		},
+		{
+			u"^about_popular_apps$"_q,
+			ShowPopularAppsAbout,
+		},
 	};
 	return Result;
 }

Telegram/SourceFiles/dialogs/dialogs.style

@@ -743,3 +743,7 @@ dialogsSearchTagPromoLeft: 6px;
 dialogsSearchTagPromoRight: 1px;
 dialogsSearchTagPromoSkip: 6px;
 
+dialogsPopularAppsPadding: margins(10px, 8px, 10px, 12px);
+dialogsPopularAppsAbout: FlatLabel(boxDividerLabel) {
+	minWidth: 128px;
+}

Telegram/SourceFiles/dialogs/ui/dialogs_suggestions.cpp

@@ -1162,8 +1162,22 @@ void PopularAppsController::fill() {
 			appendRow(bot);
 		}
 	}
+	const auto count = delegate()->peerListFullRowsCount();
+	setCount(count);
+	if (count > 0) {
+		delegate()->peerListSetBelowWidget(object_ptr<Ui::DividerLabel>(
+			(QWidget*)nullptr,
+			object_ptr<Ui::FlatLabel>(
+				(QWidget*)nullptr,
+				tr::lng_bot_apps_which(
+					lt_link,
+					tr::lng_bot_apps_which_link(
+					) | Ui::Text::ToLink(u"internal:about_popular_apps"_q),
+					Ui::Text::WithEntities),
+				st::dialogsPopularAppsAbout),
+			st::dialogsPopularAppsPadding));
+	}
 	delegate()->peerListRefreshRows();
-	setCount(delegate()->peerListFullRowsCount());
 }
 
 void PopularAppsController::appendRow(not_null<UserData*> bot) {
@@ -2325,4 +2339,21 @@ object_ptr<Ui::BoxContent> StarsExamplesBox(
 	return Box<PeerListBox>(std::move(controller), std::move(initBox));
 }
 
+object_ptr<Ui::BoxContent> PopularAppsAboutBox(
+		not_null<Window::SessionController*> window) {
+	return Ui::MakeInformBox({
+		.text = tr::lng_popular_apps_info_text(
+			lt_bot,
+			rpl::single(Ui::Text::Link(
+				u"@botfather"_q,
+				u"https://t.me/botfather"_q)),
+			lt_link,
+			tr::lng_popular_apps_info_here(
+			) | Ui::Text::ToLink(tr::lng_popular_apps_info_url(tr::now)),
+			Ui::Text::RichLangValue),
+		.confirmText = tr::lng_popular_apps_info_confirm(),
+		.title = tr::lng_popular_apps_info_title(),
+	});
+}
+
 } // namespace Dialogs

Telegram/SourceFiles/dialogs/ui/dialogs_suggestions.h

@@ -219,4 +219,7 @@ private:
 [[nodiscard]] object_ptr<Ui::BoxContent> StarsExamplesBox(
 	not_null<Window::SessionController*> window);
 
+[[nodiscard]] object_ptr<Ui::BoxContent> PopularAppsAboutBox(
+	not_null<Window::SessionController*> window);
+
 } // namespace Dialogs