Moved out ui callbacks of bar from data class from sponsored messages.

Telegram/SourceFiles/data/components/sponsored_messages.cpp

@@ -278,38 +278,52 @@ void SponsoredMessages::parse(
 	});
 }
 
-void SponsoredMessages::fillTopBar(
+FullMsgId SponsoredMessages::fillTopBar(
 		not_null<History*> history,
-		not_null<Ui::RpWidget*> widget,
+		not_null<Ui::RpWidget*> widget) {
-		Fn<void()> hide) {
 	const auto it = _data.find(history);
-	if (it == end(_data)) {
+	if (it != end(_data)) {
-		return;
-	}
 		auto &list = it->second;
-	if (list.entries.empty()) {
+		if (!list.entries.empty()) {
-		return;
+			const auto &entry = list.entries.front();
-	}
-	auto &entry = list.entries.front();
-	if (!entry.optionalDestructionNotifier) {
-		entry.optionalDestructionNotifier = std::make_unique<rpl::lifetime>();
-	}
 			const auto fullId = entry.itemFullId;
-	entry.optionalDestructionNotifier->add(std::move(hide));
 			Ui::FillSponsoredMessageBar(
 				widget,
 				_session,
 				fullId,
 				entry.sponsored.from,
 				entry.sponsored.textWithEntities);
+			return fullId;
+		}
+	}
+	return {};
+}
 
-	const auto viewLifetime = widget->lifetime().make_state<rpl::lifetime>();
+rpl::producer<> SponsoredMessages::itemRemoved(const FullMsgId &fullId) {
-	widget->shownValue() | rpl::filter(
+	if (IsServerMsgId(fullId.msg) || !fullId) {
-		rpl::mappers::_1
+		return rpl::never<>();
-	) | rpl::start_with_next([=, this](bool shown) {
+	}
-		view(fullId);
+	const auto history = _session->data().history(fullId.peer);
-		viewLifetime->destroy();
+	const auto it = _data.find(history);
-	}, *viewLifetime);
+	if (it == end(_data)) {
+		return rpl::never<>();
+	}
+	auto &list = it->second;
+	const auto entryIt = ranges::find_if(list.entries, [&](const Entry &e) {
+		return e.itemFullId == fullId;
+	});
+	if (entryIt == end(list.entries)) {
+		return rpl::never<>();
+	}
+	if (!entryIt->optionalDestructionNotifier) {
+		entryIt->optionalDestructionNotifier
+			= std::make_unique<rpl::lifetime>();
+		entryIt->optionalDestructionNotifier->add([this, fullId] {
+			_itemRemoved.fire_copy(fullId);
+		});
+	}
+	return _itemRemoved.events(
+	) | rpl::filter(rpl::mappers::_1 == fullId) | rpl::to_empty;
 }
 
 void SponsoredMessages::append(

Telegram/SourceFiles/data/components/sponsored_messages.h

@@ -104,10 +104,10 @@ public:
 	void clearItems(not_null<History*> history);
 	[[nodiscard]] Details lookupDetails(const FullMsgId &fullId) const;
 	void clicked(const FullMsgId &fullId, bool isMedia, bool isFullscreen);
-	void fillTopBar(
+	[[nodiscard]] FullMsgId fillTopBar(
 		not_null<History*> history,
-		not_null<Ui::RpWidget*> widget,
+		not_null<Ui::RpWidget*> widget);
-		Fn<void()> hide);
+	[[nodiscard]] rpl::producer<> itemRemoved(const FullMsgId &);
 
 	[[nodiscard]] AppendResult append(not_null<History*> history);
 	void inject(
@@ -167,6 +167,8 @@ private:
 	base::flat_map<not_null<History*>, Request> _requests;
 	base::flat_map<RandomId, Request> _viewRequests;
 
+	rpl::event_stream<FullMsgId> _itemRemoved;
+
 	rpl::lifetime _lifetime;
 
 };

Telegram/SourceFiles/history/history_widget.cpp

@@ -7648,21 +7648,33 @@ void HistoryWidget::createSponsoredMessageBar() {
 		object_ptr<Ui::RpWidget>(this));
 
 	_sponsoredMessageBar->entity()->resizeToWidth(_scroll->width());
-	auto destruction = [this] {
+	const auto maybeFullId = session().sponsoredMessages().fillTopBar(
-		if (_sponsoredMessageBar) {
-			_sponsoredMessageBar->toggle(false, anim::type::normal);
-			_sponsoredMessageBar->shownValue(
-			) | rpl::start_with_next([=](bool shown) {
-				if (!shown) {
-					_sponsoredMessageBar = nullptr;
-				}
-			}, _sponsoredMessageBar->lifetime());
-		}
-	};
-	session().sponsoredMessages().fillTopBar(
 		_history,
-		_sponsoredMessageBar->entity(),
+		_sponsoredMessageBar->entity());
-		std::move(destruction));
+	session().sponsoredMessages().itemRemoved(
+		maybeFullId
+	) | rpl::start_with_next([this] {
+		_sponsoredMessageBar->shownValue() | rpl::filter(
+			!rpl::mappers::_1
+		) | rpl::start_with_next([this] {
+			_sponsoredMessageBar = nullptr;
+		}, _sponsoredMessageBar->lifetime());
+		_sponsoredMessageBar->toggle(false, anim::type::normal);
+	}, _sponsoredMessageBar->lifetime());
+
+	if (maybeFullId) {
+		const auto viewLifetime
+			= _sponsoredMessageBar->lifetime().make_state<rpl::lifetime>();
+		rpl::combine(
+			_sponsoredMessageBar->entity()->heightValue(),
+			_sponsoredMessageBar->heightValue()
+		) | rpl::filter(
+			rpl::mappers::_1 == rpl::mappers::_2
+		) | rpl::start_with_next([=] {
+			session().sponsoredMessages().view(maybeFullId);
+			viewLifetime->destroy();
+		}, *viewLifetime);
+	}
 
 	_sponsoredMessageBarHeight = 0;
 	_sponsoredMessageBar->heightValue(