Don't allow reply to changelog stories.

Telegram/SourceFiles/media/stories/media_stories_controller.cpp

@@ -96,7 +96,6 @@ private:
 
 	const not_null<Controller*> _controller;
 	std::unique_ptr<Ui::RpWidget> _bg;
-	std::unique_ptr<Ui::RpWidget> _reply;
 	std::unique_ptr<Ui::FlatLabel> _text;
 	std::unique_ptr<Ui::RoundButton> _button;
 	Ui::RoundRect _bgRound;
@@ -172,32 +171,9 @@ void Controller::Unsupported::setup(not_null<UserData*> user) {
 		_bgRound.paint(p, _bg->rect());
 	}, _bg->lifetime());
 
-	if (!user->isSelf()) {
-		_reply = std::make_unique<Ui::RpWidget>(wrap);
-		_reply->show();
-		_reply->paintRequest() | rpl::start_with_next([=] {
-			auto p = QPainter(_reply.get());
-			_bgRound.paint(p, _reply->rect());
-
-			p.setPen(st::storiesComposeGrayText);
-			p.setFont(st::normalFont);
-			p.drawText(
-				_reply->rect(),
-				tr::lng_stories_cant_reply(tr::now),
-				style::al_center);
-		}, _reply->lifetime());
-	}
-
 	_controller->layoutValue(
 	) | rpl::start_with_next([=](const Layout &layout) {
 		_bg->setGeometry(layout.content);
-		if (_reply) {
-			const auto height = st::storiesComposeControls.attach.height;
-			const auto position = layout.controlsBottomPosition
-				- QPoint(0, height);
-			_reply->setGeometry(
-				{ position, QSize{ layout.controlsWidth, height } });
-		}
 	}, _bg->lifetime());
 
 	_text = std::make_unique<Ui::FlatLabel>(
@@ -1141,7 +1117,6 @@ void Controller::rebuildCachedSourcesList(
 	} else {
 		// All that go before the current push to front.
 		for (auto before = index; before > 0;) {
-			--before;
 			const auto peerId = lists[--before].id;
 			if (!ranges::contains(_cachedSourcesList, peerId)) {
 				_cachedSourcesList.insert(
@@ -1160,12 +1135,8 @@ void Controller::rebuildCachedSourcesList(
 	}
 
 	Ensures(_cachedSourcesList.size() == lists.size());
-	Ensures(ranges::equal(
-		lists,
-		_cachedSourcesList,
-		ranges::equal_to(),
-		&Data::StoriesSourceInfo::id));
-	Ensures(_cachedSourceIndex >= 0 && _cachedSourceIndex < _cachedSourcesList.size());
+	Ensures(_cachedSourceIndex >= 0
+		&& _cachedSourceIndex < _cachedSourcesList.size());
 }
 
 void Controller::refreshViewsFromData() {

Telegram/SourceFiles/media/stories/media_stories_reply.cpp

@@ -35,6 +35,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "storage/storage_account.h"
 #include "storage/storage_media_prepare.h"
 #include "ui/chat/attach/attach_prepare.h"
+#include "ui/round_rect.h"
 #include "window/section_widget.h"
 #include "styles/style_boxes.h" // sendMediaPreviewSize.
 #include "styles/style_chat_helpers.h"
@@ -42,6 +43,35 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 namespace Media::Stories {
 
+class ReplyArea::Cant final : public Ui::RpWidget {
+public:
+	explicit Cant(not_null<QWidget*> parent);
+
+private:
+	void paintEvent(QPaintEvent *e) override;
+
+	Ui::RoundRect _bg;
+
+};
+
+ReplyArea::Cant::Cant(not_null<QWidget*> parent)
+: RpWidget(parent)
+, _bg(st::storiesRadius, st::storiesComposeBg) {
+	show();
+}
+
+void ReplyArea::Cant::paintEvent(QPaintEvent *e) {
+	auto p = QPainter(this);
+	_bg.paint(p, rect());
+
+	p.setPen(st::storiesComposeGrayText);
+	p.setFont(st::normalFont);
+	p.drawText(
+		rect(),
+		tr::lng_stories_cant_reply(tr::now),
+		style::al_center);
+}
+
 ReplyArea::ReplyArea(not_null<Controller*> controller)
 : _controller(controller)
 , _controls(std::make_unique<HistoryView::ComposeControls>(
@@ -599,10 +629,25 @@ void ReplyArea::show(ReplyAreaData data) {
 		.history = history,
 	});
 	_controls->clear();
-	if (!user || user->isSelf()) {
-		_controls->hide();
-	} else {
+	const auto hidden = user && user->isSelf();
+	const auto cant = !user || user->isServiceUser();
+	if (!hidden && !cant) {
 		_controls->show();
+	} else {
+		_controls->hide();
+		if (cant) {
+			_cant = std::make_unique<Cant>(_controller->wrap());
+			_controller->layoutValue(
+			) | rpl::start_with_next([=](const Layout &layout) {
+				const auto height = st::storiesComposeControls.attach.height;
+				const auto position = layout.controlsBottomPosition
+					- QPoint(0, height);
+				_cant->setGeometry(
+					{ position, QSize{ layout.controlsWidth, height } });
+			}, _cant->lifetime());
+		} else {
+			_cant = nullptr;
+		}
 	}
 }
 

Telegram/SourceFiles/media/stories/media_stories_reply.h

@@ -68,6 +68,8 @@ public:
 	[[nodiscard]] rpl::producer<bool> hasSendTextValue() const;
 
 private:
+	class Cant;
+
 	using VoiceToSend = HistoryView::Controls::VoiceToSend;
 
 	[[nodiscard]] Main::Session &session() const;
@@ -134,6 +136,7 @@ private:
 
 	const not_null<Controller*> _controller;
 	const std::unique_ptr<HistoryView::ComposeControls> _controls;
+	std::unique_ptr<Cant> _cant;
 
 	ReplyAreaData _data;
 	base::has_weak_ptr _shownUserGuard;