Fix captions selection in column albums.

Telegram/SourceFiles/history/history_item_text.cpp

@@ -108,12 +108,38 @@ TextForMimeData HistoryItemText(not_null<HistoryItem*> item) {
 TextForMimeData HistoryGroupText(not_null<const Data::Group*> group) {
 	Expects(!group->items.empty());
 
+	const auto columnAlbum = [&] {
+		const auto item = group->items.front();
+		if (const auto media = item->media()) {
+			if (const auto document = media->document()) {
+				return !document->isVideoFile();
+			}
+		}
+		return false;
+	}();
+	const auto hasCaption = [](not_null<HistoryItem*> item) {
+		return !item->clipboardText().empty();
+	};
+	if (columnAlbum) {
+		const auto simple = !ranges::any_of(group->items, hasCaption);
+		if (!simple) {
+			auto result = TextForMimeData();
+			for (const auto &item : group->items) {
+				if (result.empty()) {
+					result = HistoryItemText(item);
+				} else {
+					result.append(qstr("\n\n")).append(HistoryItemText(item));
+				}
+			}
+			return result;
+		}
+	}
 	auto caption = [&] {
 		auto &&nonempty = ranges::view::all(
 			group->items
-		) | ranges::view::filter([](not_null<HistoryItem*> item) {
+		) | ranges::view::filter(
-			return !item->clipboardText().empty();
+			hasCaption
-		}) | ranges::view::take(2);
+		) | ranges::view::take(2);
 		auto first = nonempty.begin();
 		auto end = nonempty.end();
 		if (first == end) {

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

@@ -908,8 +908,7 @@ void Document::drawGrouped(
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache,
+		not_null<QPixmap*> cache) const {
-		bool last) const {
 	p.translate(geometry.topLeft());
 	draw(
 		p,
@@ -924,8 +923,7 @@ TextState Document::getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request,
+		StateRequest request) const {
-		bool last) const {
 	point -= geometry.topLeft();
 	return textState(
 		point,

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

@@ -73,14 +73,12 @@ public:
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache,
+		not_null<QPixmap*> cache) const override;
-		bool last) const override;
 	TextState getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request,
+		StateRequest request) const override;
-		bool last) const override;
 
 	bool voiceProgressAnimationCallback(crl::time now);
 

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

@@ -902,8 +902,7 @@ void Gif::drawGrouped(
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache,
+		not_null<QPixmap*> cache) const {
-		bool last) const {
 	ensureDataMediaCreated();
 	const auto item = _parent->data();
 	const auto loaded = dataLoaded();
@@ -1091,8 +1090,7 @@ TextState Gif::getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request,
+		StateRequest request) const {
-		bool last) const {
 	if (!geometry.contains(point)) {
 		return {};
 	}

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

@@ -80,14 +80,12 @@ public:
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache,
+		not_null<QPixmap*> cache) const override;
-		bool last) const override;
 	TextState getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request,
+		StateRequest request) const override;
-		bool last) const override;
 
 	void stopAnimation() override;
 	void checkAnimation() override;

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

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

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

@@ -178,16 +178,14 @@ public:
 			RectParts sides,
 			RectParts corners,
 			not_null<uint64*> cacheKey,
-			not_null<QPixmap*> cache,
+			not_null<QPixmap*> cache) const {
-			bool last) const {
 		Unexpected("Grouping method call.");
 	}
 	[[nodiscard]] virtual TextState getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request,
+		StateRequest request) const;
-		bool last) const;
 
 	[[nodiscard]] virtual bool animating() const {
 		return false;

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

@@ -254,14 +254,21 @@ void GroupedMedia::draw(
 		TextSelection selection,
 		crl::time ms) const {
 	const auto groupPadding = groupedPadding();
+	const auto fullSelection = (selection == FullSelection);
+	const auto textSelection = !fullSelection
+		&& !IsSubGroupSelection(selection);
 	for (auto i = 0, count = int(_parts.size()); i != count; ++i) {
 		const auto &part = _parts[i];
-		const auto partSelection = (selection == FullSelection)
+		const auto partSelection = fullSelection
 			? FullSelection
+			: textSelection
+			? selection
 			: IsGroupItemSelection(selection, i)
 			? FullSelection
 			: TextSelection();
-		const auto last = (i + 1 == count);
+		if (textSelection) {
+			selection = part.content->skipSelection(selection);
+		}
 		part.content->drawGrouped(
 			p,
 			clip,
@@ -271,8 +278,7 @@ void GroupedMedia::draw(
 			part.sides,
 			cornersFromSides(part.sides),
 			&part.cacheKey,
-			&part.cache,
+			&part.cache);
-			last);
 	}
 
 	// date
@@ -303,20 +309,19 @@ void GroupedMedia::draw(
 TextState GroupedMedia::getPartState(
 		QPoint point,
 		StateRequest request) const {
-	auto index = 0;
+	auto shift = 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.symbol += shift;
 			result.itemId = part.item->fullId();
 			return result;
 		}
+		shift += part.content->fullSelectionLength();
 	}
 	return TextState(_parent->data());
 }
@@ -389,12 +394,69 @@ bool GroupedMedia::dragItemByHandler(const ClickHandlerPtr &p) const {
 TextSelection GroupedMedia::adjustSelection(
 		TextSelection selection,
 		TextSelectType type) const {
-	return _caption.adjustSelection(selection, type);
+	if (_mode != Mode::Column) {
+		return _caption.adjustSelection(selection, type);
+	}
+	auto checked = 0;
+	for (const auto &part : _parts) {
+		const auto modified = ShiftItemSelection(
+			part.content->adjustSelection(
+				UnshiftItemSelection(selection, checked),
+				type),
+			checked);
+		const auto till = checked + part.content->fullSelectionLength();
+		if (selection.from >= checked && selection.from < till) {
+			selection.from = modified.from;
+		}
+		if (selection.to <= till) {
+			selection.to = modified.to;
+			return selection;
+		}
+	}
+	return selection;
+}
+
+uint16 GroupedMedia::fullSelectionLength() const {
+	if (_mode != Mode::Column) {
+		return _caption.length();
+	}
+	auto result = 0;
+	for (const auto &part : _parts) {
+		result += part.content->fullSelectionLength();
+	}
+	return result;
+}
+
+bool GroupedMedia::hasTextForCopy() const {
+	if (_mode != Mode::Column) {
+		return !_caption.isEmpty();
+	}
+	for (const auto &part : _parts) {
+		if (part.content->hasTextForCopy()) {
+			return true;
+		}
+	}
+	return false;
 }
 
 TextForMimeData GroupedMedia::selectedText(
 		TextSelection selection) const {
-	return _caption.toTextForMimeData(selection);
+	if (_mode != Mode::Column) {
+		return _caption.toTextForMimeData(selection);
+	}
+	auto result = TextForMimeData();
+	for (const auto &part : _parts) {
+		auto text = part.content->selectedText(selection);
+		if (!text.empty()) {
+			if (result.empty()) {
+				result = std::move(text);
+			} else {
+				result.append(qstr("\n\n")).append(std::move(text));
+			}
+		}
+		selection = part.content->skipSelection(selection);
+	}
+	return result;
 }
 
 auto GroupedMedia::getBubbleSelectionIntervals(

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

@@ -48,12 +48,8 @@ public:
 	[[nodiscard]] TextSelection adjustSelection(
 		TextSelection selection,
 		TextSelectType type) const override;
-	uint16 fullSelectionLength() const override {
+	uint16 fullSelectionLength() const override;
-		return _caption.length();
+	bool hasTextForCopy() const override;
-	}
-	bool hasTextForCopy() const override {
-		return !_caption.isEmpty();
-	}
 
 	PhotoData *getPhoto() const override;
 	DocumentData *getDocument() const override;

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

@@ -486,8 +486,7 @@ void Photo::drawGrouped(
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache,
+		not_null<QPixmap*> cache) const {
-		bool last) const {
 	ensureDataMediaCreated();
 	_dataMedia->automaticLoad(_realParent->fullId(), _parent->data());
 
@@ -587,8 +586,7 @@ TextState Photo::getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request,
+		StateRequest request) const {
-		bool last) const {
 	if (!geometry.contains(point)) {
 		return {};
 	}

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

@@ -69,14 +69,12 @@ public:
 		RectParts sides,
 		RectParts corners,
 		not_null<uint64*> cacheKey,
-		not_null<QPixmap*> cache,
+		not_null<QPixmap*> cache) const override;
-		bool last) const override;
 	TextState getStateGrouped(
 		const QRect &geometry,
 		RectParts sides,
 		QPoint point,
-		StateRequest request,
+		StateRequest request) const override;
-		bool last) const override;
 
 	TextWithEntities getCaption() const override {
 		return _caption.toTextWithEntities();