Send files grouped in albums, show captions.

Telegram/SourceFiles/apiwrap.cpp

@@ -4232,7 +4232,9 @@ void ApiWrap::sendFiles(
 		if (album) {
 			switch (file.type) {
 			case Ui::PreparedFile::AlbumType::Photo:
-				type = SendMediaType::Photo;
+				type = (type == SendMediaType::File)
+					? type
+					: SendMediaType::Photo;
 				break;
 			case Ui::PreparedFile::AlbumType::Video:
 			case Ui::PreparedFile::AlbumType::File:

Telegram/SourceFiles/boxes/send_files_box.cpp

@@ -763,6 +763,9 @@ void SendFilesBox::addPreparedAsyncFile(Ui::PreparedFile &&file) {
 	if (_list.files.size() > count) {
 		refreshAllAfterChanges(count);
 	}
+	if (!_preparing && _whenReadySend) {
+		_whenReadySend();
+	}
 }
 
 void SendFilesBox::addFile(Ui::PreparedFile &&file) {
@@ -893,6 +896,12 @@ void SendFilesBox::send(
 		&& !options.scheduled) {
 		return sendScheduled();
 	}
+	if (_preparing) {
+		_whenReadySend = [=] {
+			send(options, ctrlShiftEnter);
+		};
+		return;
+	}
 
 	auto way = _sendWay.current();
 	auto oldWay = Core::App().settings().sendFilesWay();

Telegram/SourceFiles/boxes/send_files_box.h

@@ -187,6 +187,7 @@ private:
 	object_ptr<Ui::ScrollArea> _scroll;
 	QPointer<Ui::VerticalLayout> _inner;
 	std::vector<Block> _blocks;
+	Fn<void()> _whenReadySend;
 	bool _preparing = false;
 
 	int _lastScrollTop = 0;

Telegram/SourceFiles/data/data_media_types.cpp

@@ -479,7 +479,14 @@ Storage::SharedMediaTypesMask MediaFile::sharedMediaTypes() const {
 }
 
 bool MediaFile::canBeGrouped() const {
-	return _document->isVideoFile() || _document->isSong();
+	if (_document->sticker() || _document->isAnimation()) {
+		return false;
+	} else if (_document->isVideoFile()) {
+		return true;
+	} else if (_document->isTheme() && _document->hasThumbnail()) {
+		return false;
+	}
+	return true;
 }
 
 bool MediaFile::hasReplyPreview() const {
@@ -704,7 +711,10 @@ std::unique_ptr<HistoryView::Media> MediaFile::createView(
 			message,
 			_document);
 	}
-	return std::make_unique<HistoryView::Document>(message, _document);
+	return std::make_unique<HistoryView::Document>(
+		message,
+		realParent,
+		_document);
 }
 
 MediaContact::MediaContact(

Telegram/SourceFiles/history/history_widget.cpp

@@ -4177,22 +4177,12 @@ bool HistoryWidget::confirmSendingFiles(
 			TextWithTags &&caption,
 			Api::SendOptions options,
 			bool ctrlShiftEnter) {
-		if (showSendingFilesError(list)) {
+		sendingFilesConfirmed(
-			return;
-		}
-		const auto type = way.sendImagesAsPhotos()
-			? SendMediaType::Photo
-			: SendMediaType::File;
-		const auto album = way.groupMediaInAlbums() // #TODO files
-			? std::make_shared<SendingAlbum>()
-			: nullptr;
-		uploadFilesAfterConfirmation(
 			std::move(list),
-			type,
+			way,
 			std::move(caption),
-			replyToId(),
 			options,
-			album);
+			ctrlShiftEnter);
 	}));
 	box->setCancelledCallback(crl::guard(this, [=] {
 		_field->setTextWithTags(text);
@@ -4214,6 +4204,73 @@ bool HistoryWidget::confirmSendingFiles(
 	return true;
 }
 
+void HistoryWidget::sendingFilesConfirmed(
+		Ui::PreparedList &&list,
+		Ui::SendFilesWay way,
+		TextWithTags &&caption,
+		Api::SendOptions options,
+		bool ctrlShiftEnter) {
+	Expects(list.filesToProcess.empty());
+
+	if (showSendingFilesError(list)) {
+		return;
+	}
+	const auto slowmode = _peer->slowmodeApplied();
+	const auto sendImagesAsPhotos = way.sendImagesAsPhotos();
+	const auto sendType = sendImagesAsPhotos
+		? SendMediaType::Photo
+		: SendMediaType::File;
+	const auto groupMedia = way.groupMediaInAlbums() || slowmode;
+	const auto groupFiles = way.groupFiles() || slowmode;
+
+	auto group = Ui::PreparedList();
+
+	// For groupType Type::Video means media album,
+	// Type::File means file album,
+	// Type::None means no grouping.
+	using Type = Ui::PreparedFile::AlbumType;
+	auto groupType = Type::None;
+
+	const auto reply = replyToId();
+	auto sendGroup = [&] {
+		if (group.files.empty()) {
+			return;
+		}
+		const auto album = (groupType == Type::None)
+			? nullptr
+			: std::make_shared<SendingAlbum>();
+		uploadFilesAfterConfirmation(
+			base::take(group),
+			sendType,
+			base::take(caption),
+			reply,
+			options,
+			std::move(album));
+	};
+	for (auto i = 0; i != list.files.size(); ++i) {
+		auto &file = list.files[i];
+		const auto fileGroupType = (file.type == Type::Video)
+			? (groupMedia ? Type::Video : Type::None)
+			: (file.type == Type::Photo)
+			? ((groupMedia && sendImagesAsPhotos)
+				? Type::Video
+				: (groupFiles && !sendImagesAsPhotos)
+				? Type::File
+				: Type::None)
+			: (file.type == Type::File)
+			? (groupFiles ? Type::File : Type::None)
+			: Type::None;
+		if ((!group.files.empty() && groupType != fileGroupType)
+			|| ((groupType != Type::None)
+				&& (group.files.size() == Ui::MaxAlbumItems()))) {
+			sendGroup();
+		}
+		group.files.push_back(std::move(file));
+		groupType = fileGroupType;
+	}
+	sendGroup();
+}
+
 bool HistoryWidget::confirmSendingFiles(
 		QImage &&image,
 		QByteArray &&content,

Telegram/SourceFiles/history/history_widget.h

@@ -66,6 +66,7 @@ class LinkButton;
 class RoundButton;
 class PinnedBar;
 struct PreparedList;
+class SendFilesWay;
 namespace Toast {
 class Instance;
 } // namespace Toast
@@ -425,6 +426,13 @@ private:
 		const QString &insertTextOnCancel = QString());
 	bool showSendingFilesError(const Ui::PreparedList &list) const;
 
+	void sendingFilesConfirmed(
+		Ui::PreparedList &&list,
+		Ui::SendFilesWay way,
+		TextWithTags &&caption,
+		Api::SendOptions options,
+		bool ctrlShiftEnter);
+
 	void uploadFile(const QByteArray &fileContent, SendMediaType type);
 
 	void uploadFilesAfterConfirmation(

Telegram/SourceFiles/history/view/history_view_pinned_bar.cpp

@@ -16,7 +16,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_item.h"
 #include "history/history.h"
 #include "apiwrap.h"
-#include "styles/style_history.h"
+#include "styles/style_chat.h"
 
 namespace HistoryView {
 namespace {

Telegram/SourceFiles/history/view/media/history_view_document.cpp

@@ -65,8 +65,9 @@ constexpr auto kAudioVoiceMsgUpdateView = crl::time(100);
 
 Document::Document(
 	not_null<Element*> parent,
+	not_null<HistoryItem*> realParent,
 	not_null<DocumentData*> document)
-: File(parent, parent->data())
+: File(parent, realParent)
 , _data(document) {
 	const auto item = parent->data();
 	auto caption = createCaption();
@@ -152,7 +153,7 @@ QSize Document::countOptimalSize() {
 	const auto item = _parent->data();
 
 	auto captioned = Get<HistoryDocumentCaptioned>();
-	if (_parent->media() != this) {
+	if (_parent->media() != this && !_realParent->groupId()) {
 		if (captioned) {
 			RemoveComponents(HistoryDocumentCaptioned::Bit());
 			captioned = nullptr;
@@ -508,7 +509,7 @@ void Document::draw(
 		}
 	}
 
-	if (mode == LayoutMode::Full) {
+	if (mode != LayoutMode::GroupedLast) {
 		if (auto captioned = Get<HistoryDocumentCaptioned>()) {
 			p.setPen(outbg ? (selected ? st::historyTextOutFgSelected : st::historyTextOutFg) : (selected ? st::historyTextInFgSelected : st::historyTextInFg));
 			captioned->_caption.draw(p, st::msgPadding.left(), bottom, captionw, style::al_left, 0, -1, selection);
@@ -682,7 +683,7 @@ TextState Document::textState(
 	}
 
 	auto painth = layout.height();
-	if (mode == LayoutMode::Full) {
+	if (mode != LayoutMode::GroupedLast) {
 		if (const auto captioned = Get<HistoryDocumentCaptioned>()) {
 			if (point.y() >= bottom) {
 				result = TextState(_parent, captioned->_caption.getState(
@@ -859,10 +860,43 @@ bool Document::hideForwardedFrom() const {
 	return _data->isSong();
 }
 
-QSize Document::sizeForGrouping() const {
+QSize Document::sizeForGroupingOptimal(int maxWidth, bool last) const {
-	const auto height = st::msgFilePadding.top()
+	auto height = Has<HistoryDocumentThumbed>()
+		? (st::msgFileThumbPadding.top()
+			+ st::msgFileThumbSize
+			+ st::msgFileThumbPadding.bottom())
+		: (st::msgFilePadding.top()
 			+ st::msgFileSize
-		+ st::msgFilePadding.bottom();
+			+ st::msgFilePadding.bottom());
+	if (!last) {
+		if (const auto captioned = Get<HistoryDocumentCaptioned>()) {
+			auto captionw = maxWidth
+				- st::msgPadding.left()
+				- st::msgPadding.right();
+			height += captioned->_caption.countHeight(captionw);
+		}
+	}
+
+	return { maxWidth, height };
+}
+
+QSize Document::sizeForGrouping(int width, bool last) const {
+	auto height = Has<HistoryDocumentThumbed>()
+		? (st::msgFileThumbPadding.top()
+			+ st::msgFileThumbSize
+			+ st::msgFileThumbPadding.bottom())
+		: (st::msgFilePadding.top()
+			+ st::msgFileSize
+			+ st::msgFilePadding.bottom());
+	if (!last) {
+		if (const auto captioned = Get<HistoryDocumentCaptioned>()) {
+			auto captionw = width
+				- st::msgPadding.left()
+				- st::msgPadding.right();
+			height += captioned->_caption.countHeight(captionw);
+		}
+	}
+
 	return { maxWidth(), height };
 }
 
@@ -875,9 +909,15 @@ void Document::drawGrouped(
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache) const {
+		not_null<QPixmap*> cache,
+		bool last) const {
 	p.translate(geometry.topLeft());
-	draw(p, geometry.width(), selection, ms, LayoutMode::Grouped);
+	draw(
+		p,
+		geometry.width(),
+		selection,
+		ms,
+		last ? LayoutMode::GroupedLast : LayoutMode::Grouped);
 	p.translate(-geometry.topLeft());
 }
 
@@ -885,9 +925,14 @@ TextState Document::getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request) const {
+		StateRequest request,
+		bool last) const {
 	point -= geometry.topLeft();
-	return textState(point, geometry.size(), request, LayoutMode::Grouped);
+	return textState(
+		point,
+		geometry.size(),
+		request,
+		last ? LayoutMode::GroupedLast : LayoutMode::Grouped);
 }
 
 bool Document::voiceProgressAnimationCallback(crl::time now) {
@@ -952,7 +997,7 @@ void Document::refreshParentId(not_null<HistoryItem*> realParent) {
 }
 
 void Document::parentTextUpdated() {
-	auto caption = (_parent->media() == this)
+	auto caption = (_parent->media() == this || _realParent->groupId())
 		? createCaption()
 		: Ui::Text::String();
 	if (!caption.isEmpty()) {
@@ -980,7 +1025,7 @@ Ui::Text::String Document::createCaption() {
 		? DocumentTimestampLinkBase(_data, _realParent->fullId())
 		: QString();
 	return File::createCaption(
-		_parent->data(),
+		_realParent,
 		timestampLinksDuration,
 		timestampLinkBase);
 }

Telegram/SourceFiles/history/view/media/history_view_document.h

@@ -30,6 +30,7 @@ class Document final
 public:
 	Document(
 		not_null<Element*> parent,
+		not_null<HistoryItem*> realParent,
 		not_null<DocumentData*> document);
 	~Document();
 
@@ -61,7 +62,8 @@ public:
 	QMargins bubbleMargins() const override;
 	bool hideForwardedFrom() const override;
 
-	QSize sizeForGrouping() const override;
+	QSize sizeForGroupingOptimal(int maxWidth, bool last) const override;
+	QSize sizeForGrouping(int width, bool last) const override;
 	void drawGrouped(
 		Painter &p,
 		const QRect &clip,
@@ -71,12 +73,14 @@ public:
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache) const override;
+		not_null<QPixmap*> cache,
+		bool last) const override;
 	TextState getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request) const override;
+		StateRequest request,
+		bool last) const override;
 
 	bool voiceProgressAnimationCallback(crl::time now);
 
@@ -102,6 +106,7 @@ private:
 	enum class LayoutMode {
 		Full,
 		Grouped,
+		GroupedLast,
 	};
 
 	void draw(

Telegram/SourceFiles/history/view/media/history_view_gif.cpp

@@ -884,7 +884,11 @@ bool Gif::fullFeaturedGrouped(RectParts sides) const {
 	return (sides & RectPart::Left) && (sides & RectPart::Right);
 }
 
-QSize Gif::sizeForGrouping() const {
+QSize Gif::sizeForGroupingOptimal(int maxWidth, bool last) const {
+	return sizeForAspectRatio();
+}
+
+QSize Gif::sizeForGrouping(int width, bool last) const {
 	return sizeForAspectRatio();
 }
 
@@ -897,7 +901,8 @@ void Gif::drawGrouped(
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache) const {
+		not_null<QPixmap*> cache,
+		bool last) const {
 	ensureDataMediaCreated();
 	const auto item = _parent->data();
 	const auto loaded = dataLoaded();
@@ -1085,7 +1090,8 @@ TextState Gif::getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request) const {
+		StateRequest request,
+		bool last) const {
 	if (!geometry.contains(point)) {
 		return {};
 	}

Telegram/SourceFiles/history/view/media/history_view_gif.h

@@ -69,7 +69,8 @@ public:
 	}
 
 	bool fullFeaturedGrouped(RectParts sides) const;
-	QSize sizeForGrouping() const override;
+	QSize sizeForGroupingOptimal(int maxWidth, bool last) const override;
+	QSize sizeForGrouping(int width, bool last) const override;
 	void drawGrouped(
 		Painter &p,
 		const QRect &clip,
@@ -79,12 +80,14 @@ public:
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache) const override;
+		not_null<QPixmap*> cache,
+		bool last) const override;
 	TextState getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request) const override;
+		StateRequest request,
+		bool last) const override;
 
 	void stopAnimation() override;
 	void checkAnimation() override;

Telegram/SourceFiles/history/view/media/history_view_media.cpp

@@ -182,7 +182,8 @@ TextState Media::getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request) const {
+		StateRequest request,
+		bool last) const {
 	Unexpected("Grouping method call.");
 }
 

Telegram/SourceFiles/history/view/media/history_view_media.h

@@ -163,7 +163,12 @@ public:
 	virtual void checkAnimation() {
 	}
 
-	[[nodiscard]] virtual QSize sizeForGrouping() const {
+	[[nodiscard]] virtual QSize sizeForGroupingOptimal(
+			int maxWidth,
+			bool last) const {
+		Unexpected("Grouping method call.");
+	}
+	[[nodiscard]] virtual QSize sizeForGrouping(int width, bool last) const {
 		Unexpected("Grouping method call.");
 	}
 	virtual void drawGrouped(
@@ -175,14 +180,16 @@ public:
 			RectParts sides,
 			RectParts corners,
 			not_null<uint64*> cacheKey,
-			not_null<QPixmap*> cache) const {
+			not_null<QPixmap*> cache,
+			bool last) const {
 		Unexpected("Grouping method call.");
 	}
 	[[nodiscard]] virtual TextState getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request) const;
+		StateRequest request,
+		bool last) const;
 
 	[[nodiscard]] virtual bool animating() const {
 		return false;

Telegram/SourceFiles/history/view/media/history_view_media_common.cpp

@@ -80,7 +80,7 @@ std::unique_ptr<Media> CreateAttach(
 				document,
 				webpageUrl);
 		}
-		return std::make_unique<Document>(parent, document);
+		return std::make_unique<Document>(parent, parent->data(), document);
 	} else if (photo) {
 		return std::make_unique<Photo>(
 			parent,

Telegram/SourceFiles/history/view/media/history_view_media_grouped.cpp

@@ -94,8 +94,8 @@ GroupedMedia::~GroupedMedia() {
 
 GroupedMedia::Mode GroupedMedia::DetectMode(not_null<Data::Media*> media) {
 	const auto document = media->document();
-	return (document && document->isSong())
+	return (document && !document->isVideoFile())
-		? Mode::Playlist
+		? Mode::Column
 		: Mode::Grid;
 }
 
@@ -107,11 +107,20 @@ QSize GroupedMedia::countOptimalSize() {
 	}
 
 	std::vector<QSize> sizes;
-	sizes.reserve(_parts.size());
+	const auto partsCount = _parts.size();
+	sizes.reserve(partsCount);
+	auto maxWidth = 0;
+	if (_mode == Mode::Column) {
 		for (const auto &part : _parts) {
 			const auto &media = part.content;
 			media->initDimensions();
-		sizes.push_back(media->sizeForGrouping());
+			accumulate_max(maxWidth, media->maxWidth());
+		}
+	}
+	auto index = 0;
+	for (const auto &part : _parts) {
+		const auto last = (++index == partsCount);
+		sizes.push_back(part.content->sizeForGroupingOptimal(maxWidth, last));
 	}
 
 	const auto layout = (_mode == Mode::Grid)
@@ -123,7 +132,6 @@ QSize GroupedMedia::countOptimalSize() {
 		: LayoutPlaylist(sizes);
 	Assert(layout.size() == _parts.size());
 
-	auto maxWidth = 0;
 	auto minHeight = 0;
 	for (auto i = 0, count = int(layout.size()); i != count; ++i) {
 		const auto &item = layout[i];
@@ -146,10 +154,19 @@ QSize GroupedMedia::countOptimalSize() {
 QSize GroupedMedia::countCurrentSize(int newWidth) {
 	accumulate_min(newWidth, maxWidth());
 	auto newHeight = 0;
-	if (newWidth < st::historyGroupWidthMin) {
+	if (_mode == Mode::Grid && newWidth < st::historyGroupWidthMin) {
 		return { newWidth, newHeight };
+	} else if (_mode == Mode::Column) {
+		auto index = 0;
+		auto top = 0;
+		for (auto &part : _parts) {
+			const auto last = (++index == _parts.size());
+			const auto size = part.content->sizeForGrouping(newWidth, last);
+			part.geometry = QRect(0, top, newWidth, size.height());
+			top += size.height();
 		}
-
+		newHeight = top;
+	} else {
 		const auto initialSpacing = st::historyGroupSkip;
 		const auto factor = newWidth / float64(maxWidth());
 		const auto scale = [&](int value) {
@@ -181,7 +198,7 @@ QSize GroupedMedia::countCurrentSize(int newWidth) {
 
 			accumulate_max(newHeight, top + height);
 		}
-
+	}
 	if (!_caption.isEmpty()) {
 		const auto captionw = newWidth - st::msgPadding.left() - st::msgPadding.right();
 		newHeight += st::mediaCaptionSkip + _caption.countHeight(captionw);
@@ -223,6 +240,7 @@ void GroupedMedia::draw(
 			: IsGroupItemSelection(selection, i)
 			? FullSelection
 			: TextSelection();
+		const auto last = (i + 1 == count);
 		part.content->drawGrouped(
 			p,
 			clip,
@@ -232,7 +250,8 @@ void GroupedMedia::draw(
 			part.sides,
 			cornersFromSides(part.sides),
 			&part.cacheKey,
-			&part.cache);
+			&part.cache,
+			last);
 	}
 
 	// date
@@ -262,13 +281,17 @@ void GroupedMedia::draw(
 TextState GroupedMedia::getPartState(
 		QPoint point,
 		StateRequest request) const {
+	auto index = 0;
 	for (const auto &part : _parts) {
+		++index;
 		if (part.geometry.contains(point)) {
+			const auto last = (index == _parts.size());
 			auto result = part.content->getStateGrouped(
 				part.geometry,
 				part.sides,
 				point,
-				request);
+				request,
+				last);
 			result.itemId = part.item->fullId();
 			return result;
 		}
@@ -372,6 +395,9 @@ auto GroupedMedia::getBubbleSelectionIntervals(
 			last = BubbleSelectionInterval{ newTop, newHeight };
 		}
 	}
+	if (IsGroupItemSelection(selection, _parts.size() - 1)) {
+		result.back().height = height() - result.back().top;
+	}
 	return result;
 }
 
@@ -465,6 +491,10 @@ HistoryMessageEdited *GroupedMedia::displayedEditBadge() const {
 
 void GroupedMedia::updateNeedBubbleState() {
 	const auto captionItem = [&]() -> HistoryItem* {
+		if (_mode == Mode::Column) {
+			const auto last = _parts.back().item.get();
+			return last->emptyText() ? nullptr : last;
+		}
 		auto result = (HistoryItem*)nullptr;
 		for (const auto &part : _parts) {
 			if (!part.item->emptyText()) {
@@ -519,7 +549,7 @@ bool GroupedMedia::needsBubble() const {
 }
 
 bool GroupedMedia::computeNeedBubble() const {
-	if (!_caption.isEmpty() || _mode == Mode::Playlist) {
+	if (!_caption.isEmpty() || _mode == Mode::Column) {
 		return true;
 	}
 	if (const auto item = _parent->data()) {
@@ -537,7 +567,7 @@ bool GroupedMedia::computeNeedBubble() const {
 }
 
 bool GroupedMedia::needInfoDisplay() const {
-	return (_mode != Mode::Playlist)
+	return (_mode != Mode::Column)
 		&& (_parent->data()->id < 0
 			|| _parent->isUnderCursor()
 			|| _parent->isLastAndSelfMessage());

Telegram/SourceFiles/history/view/media/history_view_media_grouped.h

@@ -86,7 +86,7 @@ public:
 	void updateNeedBubbleState() override;
 	bool needsBubble() const override;
 	bool customInfoLayout() const override {
-		return _caption.isEmpty() && (_mode != Mode::Playlist);
+		return _caption.isEmpty() && (_mode != Mode::Column);
 	}
 	bool allowsFastShare() const override {
 		return true;
@@ -102,7 +102,7 @@ public:
 private:
 	enum class Mode : char {
 		Grid,
-		Playlist,
+		Column,
 	};
 	struct Part {
 		Part(

Telegram/SourceFiles/history/view/media/history_view_photo.cpp

@@ -465,12 +465,16 @@ TextState Photo::textState(QPoint point, StateRequest request) const {
 	return result;
 }
 
-QSize Photo::sizeForGrouping() const {
+QSize Photo::sizeForGroupingOptimal(int maxWidth, bool last) const {
 	const auto width = _data->width();
 	const auto height = _data->height();
 	return { std::max(width, 1), std::max(height, 1) };
 }
 
+QSize Photo::sizeForGrouping(int width, bool last) const {
+	return sizeForGroupingOptimal(width, last);
+}
+
 void Photo::drawGrouped(
 		Painter &p,
 		const QRect &clip,
@@ -480,7 +484,8 @@ void Photo::drawGrouped(
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache) const {
+		not_null<QPixmap*> cache,
+		bool last) const {
 	ensureDataMediaCreated();
 	_dataMedia->automaticLoad(_realParent->fullId(), _parent->data());
 
@@ -580,7 +585,8 @@ TextState Photo::getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request) const {
+		StateRequest request,
+		bool last) const {
 	if (!geometry.contains(point)) {
 		return {};
 	}

Telegram/SourceFiles/history/view/media/history_view_photo.h

@@ -24,7 +24,7 @@ struct Information;
 
 namespace HistoryView {
 
-class Photo : public File {
+class Photo final : public File {
 public:
 	Photo(
 		not_null<Element*> parent,
@@ -58,7 +58,8 @@ public:
 		return _data;
 	}
 
-	QSize sizeForGrouping() const override;
+	QSize sizeForGroupingOptimal(int maxWidth, bool last) const override;
+	QSize sizeForGrouping(int width, bool last) const override;
 	void drawGrouped(
 		Painter &p,
 		const QRect &clip,
@@ -68,12 +69,14 @@ public:
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache) const override;
+		not_null<QPixmap*> cache,
+		bool last) const override;
 	TextState getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request) const override;
+		StateRequest request,
+		bool last) const override;
 
 	TextWithEntities getCaption() const override {
 		return _caption.toTextWithEntities();