Fix sending paid intro sticker.

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -4346,6 +4346,9 @@ void HistoryInner::refreshAboutView(bool force) {
 			_aboutView->refreshRequests() | rpl::start_with_next([=] {
 				updateBotInfo();
 			}, _aboutView->lifetime());
+			_aboutView->sendIntroSticker() | rpl::start_to_stream(
+				_sendIntroSticker,
+				_aboutView->lifetime());
 		}
 	};
 	if (const auto user = _peer->asUser()) {
@@ -4777,6 +4780,11 @@ ClickContext HistoryInner::prepareClickContext(
 	};
 }
 
+auto HistoryInner::sendIntroSticker() const
+-> rpl::producer<not_null<DocumentData*>> {
+	return _sendIntroSticker.events();
+}
+
 auto HistoryInner::DelegateMixin()
 -> std::unique_ptr<HistoryMainElementDelegateMixin> {
 	return std::make_unique<HistoryMainElementDelegate>();

Telegram/SourceFiles/history/history_inner_widget.h

@@ -221,6 +221,9 @@ public:
 		Qt::MouseButton button,
 		FullMsgId itemId) const;
 
+	[[nodiscard]] auto sendIntroSticker() const
+		-> rpl::producer<not_null<DocumentData*>>;
+
 	[[nodiscard]] static auto DelegateMixin()
 	-> std::unique_ptr<HistoryMainElementDelegateMixin>;
 
@@ -466,6 +469,7 @@ private:
 	std::unique_ptr<HistoryView::AboutView> _aboutView;
 	std::unique_ptr<HistoryView::EmptyPainter> _emptyPainter;
 	std::unique_ptr<HistoryView::TranslateTracker> _translateTracker;
+	rpl::event_stream<not_null<DocumentData*>> _sendIntroSticker;
 
 	mutable History *_curHistory = nullptr;
 	mutable int _curBlock = 0;

Telegram/SourceFiles/history/history_widget.cpp

@@ -2525,6 +2525,12 @@ void HistoryWidget::showHistory(
 		_scroll->hide();
 		_list = _scroll->setOwnedWidget(
 			object_ptr<HistoryInner>(this, _scroll, controller(), _history));
+		_list->sendIntroSticker(
+		) | rpl::start_with_next([=](not_null<DocumentData*> sticker) {
+			sendExistingDocument(
+				sticker,
+				Api::MessageToSend(prepareSendAction({})));
+		}, _list->lifetime());
 		_list->show();
 
 		if (const auto channel = _peer->asChannel()) {

Telegram/SourceFiles/history/view/history_view_about_view.cpp

@@ -199,7 +199,8 @@ auto GenerateChatIntro(
 	not_null<Element*> parent,
 	Element *replacing,
 	const Data::ChatIntro &data,
-	Fn<void(not_null<DocumentData*>)> helloChosen)
+	Fn<void(not_null<DocumentData*>)> helloChosen,
+	Fn<void(not_null<DocumentData*>)> sendIntroSticker)
 -> Fn<void(
 		not_null<MediaGeneric*>,
 		Fn<void(std::unique_ptr<MediaGenericPart>)>)> {
@@ -243,9 +244,7 @@ auto GenerateChatIntro(
 				}
 			}
 			const auto send = [=] {
-				Api::SendExistingDocument(Api::MessageToSend(
-					Api::SendAction(parent->history())
-				), sticker);
+				sendIntroSticker(sticker);
 			};
 			return StickerInBubblePart::Data{
 				.sticker = sticker,
@@ -598,9 +597,17 @@ void AboutView::make(Data::ChatIntro data, bool preview) {
 			}
 		}
 	};
+	const auto sendIntroSticker = [=](not_null<DocumentData*> sticker) {
+		_sendIntroSticker.fire_copy(sticker);
+	};
 	owned->overrideMedia(std::make_unique<HistoryView::MediaGeneric>(
 		owned.get(),
-		GenerateChatIntro(owned.get(), _item.get(), data, helloChosen),
+		GenerateChatIntro(
+			owned.get(),
+			_item.get(),
+			data,
+			helloChosen,
+			sendIntroSticker),
 		HistoryView::MediaGenericDescriptor{
 			.maxWidth = st::chatIntroWidth,
 			.serviceLink = std::make_shared<LambdaClickHandler>(handler),
@@ -613,6 +620,10 @@ void AboutView::make(Data::ChatIntro data, bool preview) {
 	setItem(std::move(owned), data.sticker);
 }
 
+rpl::producer<not_null<DocumentData*>> AboutView::sendIntroSticker() const {
+	return _sendIntroSticker.events();
+}
+
 rpl::producer<> AboutView::refreshRequests() const {
 	return _refreshRequests.events();
 }

Telegram/SourceFiles/history/view/history_view_about_view.h

@@ -30,6 +30,8 @@ public:
 
 	void make(Data::ChatIntro data, bool preview = false);
 
+	[[nodiscard]] auto sendIntroSticker() const
+		-> rpl::producer<not_null<DocumentData*>>;
 	[[nodiscard]] rpl::producer<> refreshRequests() const;
 	[[nodiscard]] rpl::lifetime &lifetime();
 
@@ -63,6 +65,8 @@ private:
 	DocumentData *_sticker = nullptr;
 	int _version = 0;
 
+	rpl::event_stream<not_null<DocumentData*>> _sendIntroSticker;
+
 	bool _commonGroupsStale = false;
 	bool _commonGroupsRequested = false;
 	std::vector<not_null<PeerData*>> _commonGroups;