Support tg://premium_multigift links.

Telegram/SourceFiles/boxes/gift_premium_box.cpp

@@ -382,7 +382,8 @@ void GiftsBox(
 		not_null<Ui::GenericBox*> box,
 		not_null<Window::SessionController*> controller,
 		std::vector<not_null<UserData*>> users,
-		not_null<Api::PremiumGiftCodeOptions*> api) {
+		not_null<Api::PremiumGiftCodeOptions*> api,
+		const QString &ref) {
 	Expects(!users.empty());
 
 	const auto boxWidth = st::boxWideWidth;
@@ -591,7 +592,7 @@ void GiftsBox(
 		Settings::AddSummaryPremium(
 			content,
 			controller,
-			u"gift"_q,
+			ref,
 			std::move(buttonCallback));
 	}
 
@@ -614,7 +615,7 @@ void GiftsBox(
 	auto raw = Settings::CreateSubscribeButton({
 		controller,
 		box,
-		[] { return u"gift"_q; },
+		[=] { return ref; },
 		rpl::combine(
 			state->buttonText.events(),
 			state->confirmButtonBusy.value(),
@@ -876,7 +877,7 @@ void GiftPremiumValidator::cancel() {
 	_requestId = 0;
 }
 
-void GiftPremiumValidator::showChoosePeerBox() {
+void GiftPremiumValidator::showChoosePeerBox(const QString &ref) {
 	if (_manyGiftsLifetime) {
 		return;
 	}
@@ -936,7 +937,7 @@ void GiftPremiumValidator::showChoosePeerBox() {
 				}) | ranges::to<std::vector<not_null<UserData*>>>();
 				if (!users.empty()) {
 					const auto giftBox = show->show(
-						Box(GiftsBox, _controller, users, api));
+						Box(GiftsBox, _controller, users, api, ref));
 					giftBox->boxClosing(
 					) | rpl::start_with_next([=] {
 						_manyGiftsLifetime.destroy();

Telegram/SourceFiles/boxes/gift_premium_box.h

@@ -34,7 +34,7 @@ public:
 	GiftPremiumValidator(not_null<Window::SessionController*> controller);
 
 	void showBox(not_null<UserData*> user);
-	void showChoosePeerBox();
+	void showChoosePeerBox(const QString &ref);
 	void cancel();
 
 private:

Telegram/SourceFiles/core/local_url_handlers.cpp

@@ -845,6 +845,21 @@ bool ResolvePremiumOffer(
 	return true;
 }
 
+bool ResolvePremiumMultigift(
+		Window::SessionController *controller,
+		const Match &match,
+		const QVariant &context) {
+	if (!controller) {
+		return false;
+	}
+	const auto params = url_parse_params(
+		match->captured(1).mid(1),
+		qthelp::UrlParamNameTransform::ToLower);
+	controller->showGiftPremiumsBox(params.value(u"ref"_q, u"gift_url"_q));
+	controller->window().activate();
+	return true;
+}
+
 bool ResolveLoginCode(
 		Window::SessionController *controller,
 		const Match &match,
@@ -968,6 +983,10 @@ const std::vector<LocalUrlHandler> &LocalUrlHandlers() {
 			u"premium_offer/?(\\?.+)?(#|$)"_q,
 			ResolvePremiumOffer,
 		},
+		{
+			u"^premium_multigift/?\\?(.+)(#|$)"_q,
+			ResolvePremiumMultigift,
+		},
 		{
 			u"^login/?(\\?code=([0-9]+))(&|$)"_q,
 			ResolveLoginCode

Telegram/SourceFiles/settings/settings_main.cpp

@@ -427,7 +427,7 @@ void SetupPremium(
 			{ .icon = &st::menuIconGiftPremium }
 		);
 		button->addClickHandler([=] {
-			controller->showGiftPremiumsBox();
+			controller->showGiftPremiumsBox(u"gift"_q);
 		});
 		constexpr auto kNewExpiresAt = int(1735689600);
 		if (base::unixtime::now() < kNewExpiresAt) {

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -1218,8 +1218,8 @@ void SessionController::showGiftPremiumBox(UserData *user) {
 	}
 }
 
-void SessionController::showGiftPremiumsBox() {
+void SessionController::showGiftPremiumsBox(const QString &ref) {
-	_giftPremiumValidator.showChoosePeerBox();
+	_giftPremiumValidator.showChoosePeerBox(ref);
 }
 
 void SessionController::init() {

Telegram/SourceFiles/window/window_session_controller.h

@@ -380,7 +380,7 @@ public:
 
 	void showEditPeerBox(PeerData *peer);
 	void showGiftPremiumBox(UserData *user);
-	void showGiftPremiumsBox();
+	void showGiftPremiumsBox(const QString &ref);
 
 	void enableGifPauseReason(GifPauseReason reason);
 	void disableGifPauseReason(GifPauseReason reason);