Fix crash in attached emoji preview.

Telegram/SourceFiles/api/api_updates.cpp

@@ -2373,7 +2373,7 @@ void Updates::feedUpdate(const MTPUpdate &update) {
 	////// Cloud saved GIFs
 	case mtpc_updateSavedGifs: {
 		session().data().stickers().setLastSavedGifsUpdate(0);
-		session().api().updateStickers();
+		session().api().updateSavedGifs();
 	} break;
 
 	////// Cloud drafts

Telegram/SourceFiles/apiwrap.cpp

@@ -2526,7 +2526,10 @@ void ApiWrap::updateStickers() {
 	requestRecentStickers(now);
 	requestFavedStickers(now);
 	requestFeaturedStickers(now);
-	requestFeaturedEmoji(now);
+}
+
+void ApiWrap::updateSavedGifs() {
+	const auto now = crl::now();
 	requestSavedGifs(now);
 }
 
@@ -2539,6 +2542,7 @@ void ApiWrap::updateMasks() {
 void ApiWrap::updateCustomEmoji() {
 	const auto now = crl::now();
 	requestCustomEmoji(now);
+	requestFeaturedEmoji(now);
 }
 
 void ApiWrap::requestRecentStickersForce(bool attached) {

Telegram/SourceFiles/apiwrap.h

@@ -232,6 +232,7 @@ public:
 		const Data::StickersSetsOrder &localRemoved,
 		Data::StickersType type);
 	void updateStickers();
+	void updateSavedGifs();
 	void updateMasks();
 	void updateCustomEmoji();
 	void requestRecentStickersForce(bool attached = false);

Telegram/SourceFiles/boxes/stickers_box.cpp

@@ -388,6 +388,7 @@ StickersBox::StickersBox(
 	controller->session().data().stickers().featuredSetsUnreadCountValue())
 , _section(section)
 , _isMasks(masks)
+, _isEmoji(false)
 , _installed(_isMasks ? Tab() : Tab(0, this, controller, Section::Installed))
 , _masks(_isMasks ? Tab(0, this, controller, Section::Masks) : Tab())
 , _featured(_isMasks ? Tab() : Tab(1, this, controller, Section::Featured))
@@ -403,6 +404,7 @@ StickersBox::StickersBox(
 , _api(&controller->session().mtp())
 , _section(Section::Installed)
 , _isMasks(false)
+, _isEmoji(false)
 , _installed(0, this, controller, megagroup)
 , _megagroupSet(megagroup) {
 	_installed.widget()->scrollsToY(
@@ -419,6 +421,7 @@ StickersBox::StickersBox(
 , _api(&controller->session().mtp())
 , _section(Section::Attached)
 , _isMasks(false)
+, _isEmoji(false)
 , _attached(0, this, controller, Section::Attached)
 , _attachedType(Data::StickersType::Stickers)
 , _attachedSets(attachedSets) {
@@ -432,6 +435,7 @@ StickersBox::StickersBox(
 , _api(&controller->session().mtp())
 , _section(Section::Attached)
 , _isMasks(false)
+, _isEmoji(true)
 , _attached(0, this, controller, Section::Attached)
 , _attachedType(Data::StickersType::Emoji)
 , _emojiSets(emojiSets) {
@@ -618,13 +622,22 @@ void StickersBox::prepare() {
 	setInnerWidget(_tab->takeWidget(), getTopSkip());
 	setDimensions(st::boxWideWidth, st::boxMaxListHeight);
 
-	session().data().stickers().updated(
-		_isMasks ? Data::StickersType::Masks : Data::StickersType::Stickers
+	session().data().stickers().updated(_isEmoji
+		? Data::StickersType::Emoji
+		: _isMasks
+		? Data::StickersType::Masks
+		: Data::StickersType::Stickers
 	) | rpl::start_with_next([=] {
 		handleStickersUpdated();
 	}, lifetime());
-	session().api().updateStickers();
-	session().api().updateMasks();
+
+	if (_isEmoji) {
+		session().api().updateCustomEmoji();
+	} else if (_isMasks) {
+		session().api().updateMasks();
+	} else {
+		session().api().updateStickers();
+	}
 
 	for (const auto &widget : { _installed.widget(), _masks.widget() }) {
 		if (widget) {
@@ -1053,9 +1066,23 @@ StickersBox::Inner::Row::Row(
 , removed(removed)
 , pixw(pixw)
 , pixh(pixh) {
+	++set->locked;
 }
 
-StickersBox::Inner::Row::~Row() = default;
+StickersBox::Inner::Row::~Row() {
+	if (!--set->locked) {
+		const auto installed = !!(set->flags & SetFlag::Installed);
+		const auto featured = !!(set->flags & SetFlag::Featured);
+		const auto special = !!(set->flags & SetFlag::Special);
+		const auto archived = !!(set->flags & SetFlag::Archived);
+		if (!installed && !featured && !special && !archived) {
+			auto &sets = set->owner().stickers().setsRef();
+			if (const auto i = sets.find(set->id); i != end(sets)) {
+				sets.erase(i);
+			}
+		}
+	}
+}
 
 bool StickersBox::Inner::Row::isRecentSet() const {
 	return (set->id == Data::Stickers::CloudRecentSetId)

Telegram/SourceFiles/boxes/stickers_box.h

@@ -154,6 +154,7 @@ private:
 
 	Section _section;
 	const bool _isMasks;
+	const bool _isEmoji;
 
 	Tab _installed;
 	Tab _masks;

Telegram/SourceFiles/chat_helpers/stickers_list_widget.cpp

@@ -151,7 +151,6 @@ StickersListWidget::Set &StickersListWidget::Set::operator=(
 	Set &&other) = default;
 StickersListWidget::Set::~Set() = default;
 
-
 void StickersListWidget::Sticker::ensureMediaCreated() {
 	if (documentMedia) {
 		return;

Telegram/SourceFiles/chat_helpers/tabbed_selector.cpp

@@ -801,6 +801,9 @@ void TabbedSelector::showStarted() {
 	if (hasEmojiTab()) {
 		session().api().updateCustomEmoji();
 	}
+	if (hasGifsTab()) {
+		session().api().updateSavedGifs();
+	}
 	currentTab()->widget()->refreshRecent();
 	currentTab()->widget()->preloadImages();
 	_a_slide.stop();

Telegram/SourceFiles/data/stickers/data_stickers.cpp

@@ -334,7 +334,7 @@ void Stickers::addSavedGif(
 
 	notifySavedGifsUpdated();
 	setLastSavedGifsUpdate(0);
-	session->api().updateStickers();
+	session->api().updateSavedGifs();
 }
 
 void Stickers::checkSavedGif(not_null<HistoryItem*> item) {
@@ -734,6 +734,7 @@ void Stickers::somethingReceived(
 		const auto featured = !!(set->flags & SetFlag::Featured);
 		const auto special = !!(set->flags & SetFlag::Special);
 		const auto archived = !!(set->flags & SetFlag::Archived);
+		const auto locked = (set->locked > 0);
 		if (!installed) { // remove not mine sets from recent stickers
 			for (auto i = recent.begin(); i != recent.cend();) {
 				if (set->stickers.indexOf(i->first) >= 0) {
@@ -744,7 +745,7 @@ void Stickers::somethingReceived(
 				}
 			}
 		}
-		if (installed || featured || special || archived) {
+		if (installed || featured || special || archived || locked) {
 			++it;
 		} else {
 			it = sets.erase(it);
@@ -1055,11 +1056,12 @@ void Stickers::featuredReceived(
 	auto unreadCount = 0;
 	for (auto it = sets.begin(); it != sets.end();) {
 		const auto set = it->second.get();
-		bool installed = (set->flags & SetFlag::Installed);
-		bool featured = (set->flags & SetFlag::Featured);
-		bool special = (set->flags & SetFlag::Special);
-		bool archived = (set->flags & SetFlag::Archived);
-		if (installed || featured || special || archived) {
+		const auto installed = (set->flags & SetFlag::Installed);
+		const auto featured = (set->flags & SetFlag::Featured);
+		const auto special = (set->flags & SetFlag::Special);
+		const auto archived = (set->flags & SetFlag::Archived);
+		const auto locked = (set->locked > 0);
+		if (installed || featured || special || archived || locked) {
 			if (featured && (set->flags & SetFlag::Unread)) {
 				if (!(set->flags & SetFlag::Emoji)) {
 					++unreadCount;

Telegram/SourceFiles/data/stickers/data_stickers_set.h

@@ -105,6 +105,7 @@ public:
 	DocumentId thumbnailDocumentId = 0;
 	QString title, shortName;
 	int count = 0;
+	int locked = 0;
 	StickersSetFlags flags;
 	TimeId installDate = 0;
 	StickersPack covers;