tdesktop/Telegram/SourceFiles/dialogs/dialogs_row.cpp

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.

For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "dialogs/dialogs_row.h"

#include "ui/chat/chat_theme.h" // CountAverageColor.
#include "ui/color_contrast.h"
#include "ui/effects/credits_graphics.h"
#include "ui/effects/outline_segments.h"
#include "ui/effects/ripple_animation.h"
#include "ui/effects/ttl_icon.h"
#include "ui/effects/round_checkbox.h"
#include "ui/image/image_prepare.h"
#include "ui/text/custom_emoji_text_badge.h"
#include "ui/text/format_values.h"
#include "ui/text/text_options.h"
#include "ui/text/text_utilities.h"
#include "ui/painter.h"
#include "dialogs/dialogs_entry.h"
#include "dialogs/ui/dialogs_video_userpic.h"
#include "dialogs/ui/dialogs_layout.h"
#include "data/data_channel.h"
#include "data/data_community.h"
#include "data/data_folder.h"
#include "data/data_forum.h"
#include "data/data_session.h"
#include "data/data_stories.h"
#include "data/data_peer_values.h"
#include "data/data_user.h"
#include "history/history.h"
#include "history/history_item.h"
#include "lang/lang_keys.h"
#include "base/unixtime.h"
#include "styles/style_dialogs.h"

namespace Dialogs {
namespace {

constexpr auto kTopLayer = 3;
constexpr auto kHiddenLayer = 2;
constexpr auto kBottomLayer = 1;
constexpr auto kNoneLayer = 0;
constexpr auto kBlurRadius = 24;

[[nodiscard]] int SubscriptionCutSkip() {
	const auto width = st::dialogsSubscriptionBadgeOutlineTwice / 2.;
	return int(std::ceil(width)) + 1;
}

// Exact squared euclidean distance transform, two separable passes.
[[nodiscard]] std::vector<float64> SquaredDistances(
		std::vector<float64> grid,
		int side) {
	constexpr auto kFar = 1e12;
	auto values = std::vector<float64>(side);
	auto hulls = std::vector<int>(side);
	auto breaks = std::vector<float64>(side + 1);
	const auto pass = [&](auto read, auto write) {
		for (auto i = 0; i != side; ++i) {
			values[i] = read(i);
		}
		auto last = 0;
		hulls[0] = 0;
		breaks[0] = -kFar;
		breaks[1] = kFar;
		for (auto i = 1; i != side; ++i) {
			auto cross = 0.;
			while (true) {
				const auto hull = hulls[last];
				cross = ((values[i] + float64(i) * i)
					- (values[hull] + float64(hull) * hull))
					/ (2. * i - 2. * hull);
				if (last > 0 && cross <= breaks[last]) {
					--last;
					continue;
				}
				break;
			}
			++last;
			hulls[last] = i;
			breaks[last] = cross;
			breaks[last + 1] = kFar;
		}
		last = 0;
		for (auto i = 0; i != side; ++i) {
			while (breaks[last + 1] < i) {
				++last;
			}
			const auto hull = hulls[last];
			write(i, float64(i - hull) * (i - hull) + values[hull]);
		}
	};
	for (auto x = 0; x != side; ++x) {
		pass(
			[&](int y) { return grid[y * side + x]; },
			[&](int y, float64 value) { grid[y * side + x] = value; });
	}
	for (auto y = 0; y != side; ++y) {
		pass(
			[&](int x) { return grid[y * side + x]; },
			[&](int x, float64 value) { grid[y * side + x] = value; });
	}
	return grid;
}

// Star silhouette grown by outline width in every direction.
[[nodiscard]] const QImage &SubscriptionCutMask() {
	constexpr auto kSupersample = 4;

	static auto mask = QImage();
	if (!mask.isNull()) {
		return mask;
	}
	const auto ratio = style::DevicePixelRatio();
	const auto skip = SubscriptionCutSkip();
	const auto size = st::dialogsSubscriptionBadgeSize + 2 * skip;
	const auto star = Ui::GenerateStars(
		st::dialogsSubscriptionBadgeSize,
		1,
		ratio * kSupersample);
	const auto side = size * ratio * kSupersample;
	const auto offset = skip * ratio * kSupersample;
	constexpr auto kFar = 1e12;
	auto grid = std::vector<float64>(side * side, kFar);
	for (auto y = 0; y != star.height(); ++y) {
		const auto line = reinterpret_cast<const QRgb*>(
			star.constScanLine(y));
		for (auto x = 0; x != star.width(); ++x) {
			if (qAlpha(line[x]) > 127) {
				grid[(y + offset) * side + (x + offset)] = 0.;
			}
		}
	}
	const auto squared = SquaredDistances(std::move(grid), side);
	const auto radius = (st::dialogsSubscriptionBadgeOutlineTwice / 2.)
		* ratio
		* kSupersample;
	const auto result = size * ratio;
	mask = QImage(result, result, QImage::Format_ARGB32_Premultiplied);
	mask.setDevicePixelRatio(ratio);
	for (auto y = 0; y != result; ++y) {
		const auto line = reinterpret_cast<QRgb*>(mask.scanLine(y));
		for (auto x = 0; x != result; ++x) {
			auto covered = 0.;
			for (auto inner = 0; inner != kSupersample; ++inner) {
				const auto row = (y * kSupersample + inner) * side
					+ x * kSupersample;
				for (auto i = 0; i != kSupersample; ++i) {
					covered += std::clamp(
						radius + 0.5 - std::sqrt(squared[row + i]),
						0.,
						1.);
				}
			}
			const auto alpha = base::SafeRound(
				255. * covered / (kSupersample * kSupersample));
			line[x] = qRgba(0, 0, 0, int(alpha));
		}
	}
	return mask;
}

[[nodiscard]] const QImage &SubscriptionIcon() {
	static auto starImage = QImage();
	if (!starImage.isNull()) {
		return starImage;
	}
	starImage = Ui::GenerateStars(st::dialogsSubscriptionBadgeSize, 1);
	return starImage;
}

[[nodiscard]] QImage CornerBadgeTTL(
		not_null<PeerData*> peer,
		Ui::PeerUserpicView &view,
		int photoSize) {
	const auto ttl = peer->messagesTTL();
	if (!ttl) {
		return QImage();
	}
	const auto ratio = style::DevicePixelRatio();
	const auto fullSize = photoSize;
	const auto partRect = CornerBadgeTTLRect(fullSize);
	const auto &partSize = partRect.width();
	const auto partSkip = fullSize - partSize;
	auto result = Images::Circle(BlurredDarkenedPart(
		PeerData::GenerateUserpicImage(peer, view, fullSize * ratio, 0),
		QRect(
			QPoint(partSkip, partSkip) * ratio,
			QSize(partSize, partSize) * ratio)));
	result.setDevicePixelRatio(ratio);

	auto q = QPainter(&result);
	PainterHighQualityEnabler hq(q);

	const auto innerRect = QRect(QPoint(), partRect.size())
		- st::dialogsTTLBadgeInnerMargins;
	const auto ttlText = Ui::FormatTTLTiny(ttl);

	Ui::PaintTimerIcon(q, innerRect, ttlText, st::premiumButtonFg->c);

	return result;
}

[[nodiscard]] QRect CornerBadgeHiddenRect(int photoSize) {
	const auto iconSize = st::dialogsCommunityHiddenBadgeIcon.size();
	const auto padding = st::dialogsCommunityHiddenBadgePadding;
	const auto margins = QMargins(padding, padding, padding, padding);
	const auto badgeSize = iconSize.grownBy(margins);
	return QRect(
		QPoint(
			photoSize - badgeSize.width()
				+ st::dialogsTTLBadgeSkip.x(),
			photoSize - badgeSize.height()
				+ st::dialogsTTLBadgeSkip.y()),
		badgeSize);
}

[[nodiscard]] QImage CornerBadgeHidden(
		not_null<PeerData*> peer,
		Ui::PeerUserpicView &view,
		int photoSize) {
	const auto ratio = style::DevicePixelRatio();
	const auto fullSize = photoSize;
	const auto partSize = CornerBadgeHiddenRect(fullSize).size();
	auto result = Images::Circle(BlurredDarkenedPart(
		PeerData::GenerateUserpicImage(peer, view, fullSize * ratio, 0),
		QRect(
			QPoint(
				fullSize - partSize.width(),
				fullSize - partSize.height()) * ratio,
			partSize * ratio)));
	result.setDevicePixelRatio(ratio);

	auto q = QPainter(&result);
	PainterHighQualityEnabler hq(q);

	st::dialogsCommunityHiddenBadgeIcon.paintInCenter(
		q,
		QRect(QPoint(), partSize));

	return result;
}

} // namespace

QRect CornerBadgeTTLRect(int photoSize) {
	const auto &partSize = st::dialogsTTLBadgeSize;
	return QRect(
		photoSize - partSize + st::dialogsTTLBadgeSkip.x(),
		photoSize - partSize + st::dialogsTTLBadgeSkip.y(),
		partSize,
		partSize);
}

QImage BlurredDarkenedPart(QImage image, QRect part) {
	auto blurred = Images::BlurLargeImage(
		std::move(image),
		kBlurRadius).copy(part);

	constexpr auto kMinAcceptableContrast = 4.5;
	const auto averageColor = Ui::CountAverageColor(blurred);
	const auto contrast = Ui::CountContrast(
		averageColor,
		st::premiumButtonFg->c);
	if (contrast < kMinAcceptableContrast) {
		constexpr auto kDarkerBy = 0.2;
		auto painterPart = QPainter(&blurred);
		painterPart.setOpacity(kDarkerBy);
		painterPart.fillRect(QRect(QPoint(), part.size()), Qt::black);
	}

	blurred.setDevicePixelRatio(image.devicePixelRatio());
	return blurred;
}

Row::CornerLayersManager::CornerLayersManager() = default;

bool Row::CornerLayersManager::isSameLayer(Layer layer) const {
	return isFinished() && (_nextLayer == layer);
}

void Row::CornerLayersManager::setLayer(
		Layer layer,
		Fn<void()> updateCallback) {
	if (_nextLayer == layer) {
		return;
	}
	_lastFrameShown = false;
	_prevLayer = _nextLayer;
	_nextLayer = layer;
	if (_animation.animating()) {
		_animation.change(
			1.,
			st::dialogsOnlineBadgeDuration * (1. - _animation.value(1.)));
	} else if (updateCallback) {
		_animation.start(
			std::move(updateCallback),
			0.,
			1.,
			st::dialogsOnlineBadgeDuration);
	}
}

float64 Row::CornerLayersManager::progressForLayer(Layer layer) const {
	return (_nextLayer == layer)
		? progress()
		: (_prevLayer == layer)
		? (1. - progress())
		: 0.;
}

float64 Row::CornerLayersManager::progress() const {
	return _animation.value(1.);
}

bool Row::CornerLayersManager::isFinished() const {
	return (progress() == 1.) && _lastFrameShown;
}

void Row::CornerLayersManager::markFrameShown() {
	if (progress() == 1.) {
		_lastFrameShown = true;
	}
}

bool Row::CornerLayersManager::isDisplayedNone() const {
	return (progress() == 1.) && (_nextLayer == 0);
}

BasicRow::BasicRow() = default;
BasicRow::~BasicRow() = default;

void BasicRow::addRipple(
		QPoint origin,
		QSize size,
		Fn<void()> updateCallback) {
	if (!_ripple) {
		addRippleWithMask(
			origin,
			Ui::RippleAnimation::RectMask(size),
			std::move(updateCallback));
	} else {
		_ripple->add(origin);
	}
}

void BasicRow::addRippleWithMask(
		QPoint origin,
		QImage mask,
		Fn<void()> updateCallback) {
	_ripple = std::make_unique<Ui::RippleAnimation>(
		st::dialogsRipple,
		std::move(mask),
		std::move(updateCallback));
	_ripple->add(origin);
}

void BasicRow::clearRipple() {
	_ripple = nullptr;
}

void BasicRow::stopLastRipple() {
	if (_ripple) {
		_ripple->lastStop();
	}
}

void BasicRow::paintRipple(
		QPainter &p,
		int x,
		int y,
		int outerWidth,
		const QColor *colorOverride) const {
	if (_ripple) {
		_ripple->paint(p, x, y, outerWidth, colorOverride);
		if (_ripple->empty()) {
			_ripple.reset();
		}
	}
}

void BasicRow::paintUserpic(
		Painter &p,
		not_null<Entry*> entry,
		PeerData *peer,
		Ui::VideoUserpic *videoUserpic,
		const Ui::PaintContext &context,
		bool hasUnreadBadgesAbove) const {
	PaintUserpic(p, entry, peer, videoUserpic, _userpic, context);
}

Row::Row(Key key, int index, int top) : _id(key), _top(top), _index(index) {
	if (const auto history = key.history()) {
		updateCornerBadgeShown(history->peer);
	}
}

Row::~Row() {
	clearTopicJumpRipple();
}

const style::DialogRow &Row::ComputeSt(
		not_null<const Entry*> entry,
		FilterId filterId) {
	if (const auto history = entry->asHistory()) {
		const auto hasTags = entry->hasChatsFilterTags(filterId);
		const auto wideRow = history->peer->displayAsForum()
			|| history->amMonoforumAdmin();
		return wideRow
			? (hasTags ? st::taggedForumDialogRow : st::forumDialogRow)
			: hasTags
			? st::taggedDialogRow
			: st::defaultDialogRow;
	} else if (entry->asTopic()) {
		return st::forumTopicRow;
	}
	return st::defaultDialogRow;
}

void Row::recountHeight(float64 narrowRatio, FilterId filterId) {
	const auto &st = ComputeSt(_id.entry(), filterId);
	_height = ((&st == &st::defaultDialogRow) || !_id.history())
		? st::defaultDialogRow.height
		: anim::interpolate(
			st.height,
			st::defaultDialogRow.height,
			narrowRatio);
}

uint64 Row::sortKey(FilterId filterId) const {
	return _id.entry()->sortKeyInChatList(filterId);
}

void Row::setCornerBadgeShown(
		CornerLayersManager::Layer nextLayer,
		Fn<void()> updateCallback) const {
	const auto cornerBadgeShown = (nextLayer ? 1 : 0);
	if (_cornerBadgeShown == cornerBadgeShown) {
		if (!cornerBadgeShown) {
			return;
		} else if (_cornerBadgeUserpic
			&& _cornerBadgeUserpic->layersManager.isSameLayer(nextLayer)) {
			return;
		}
	}
	const_cast<Row*>(this)->_cornerBadgeShown = cornerBadgeShown;
	ensureCornerBadgeUserpic();
	_cornerBadgeUserpic->layersManager.setLayer(
		nextLayer,
		std::move(updateCallback));
	if (!_cornerBadgeShown
		&& _cornerBadgeUserpic
		&& _cornerBadgeUserpic->layersManager.isDisplayedNone()) {
		_cornerBadgeUserpic = nullptr;
	}
}

void Row::updateCornerBadgeShown(
		not_null<PeerData*> peer,
		Fn<void()> updateCallback,
		bool hasUnreadBadgesAbove,
		bool insideCommunity,
		bool hidden) const {
	const auto user = peer->asUser();
	const auto now = user ? base::unixtime::now() : TimeId();
	const auto channel = user ? nullptr : peer->asChannel();
	const auto nextLayer = [&] {
		if (hasUnreadBadgesAbove) {
			return kNoneLayer;
		} else if (user
			&& (Data::IsUserOnline(user, now)
				|| (!insideCommunity && user->linkedCommunityId()))) {
			return kTopLayer;
		} else if (channel
			&& (Data::ChannelHasActiveCall(channel)
				|| Data::ChannelHasSubscriptionUntilDate(channel)
				|| (!insideCommunity && channel->linkedCommunityId()))) {
			return kTopLayer;
		} else if (hidden) {
			return kHiddenLayer;
		} else if (peer->messagesTTL()) {
			return kBottomLayer;
		}
		return kNoneLayer;
	}();
	setCornerBadgeShown(nextLayer, std::move(updateCallback));
	if ((nextLayer == kTopLayer) && user) {
		peer->owner().watchForOffline(user, now);
	}
}

void Row::ensureCornerBadgeUserpic() const {
	if (_cornerBadgeUserpic) {
		return;
	}
	_cornerBadgeUserpic = std::make_unique<CornerBadgeUserpic>();
}

void Row::PaintCornerBadgeFrame(
		not_null<CornerBadgeUserpic*> data,
		int framePadding,
		not_null<Entry*> entry,
		PeerData *peer,
		Ui::VideoUserpic *videoUserpic,
		Ui::PeerUserpicView &view,
		const Ui::PaintContext &context,
		bool subscribed,
		bool communityMember,
		bool hidden) {
	data->frame.fill(Qt::transparent);

	Painter q(&data->frame);
	q.translate(framePadding, framePadding);
	auto hq = std::optional<PainterHighQualityEnabler>();
	const auto photoSize = context.st->photoSize;
	const auto storiesCount = data->storiesCount;
	if (storiesCount) {
		hq.emplace(q);
		const auto line = st::dialogsStoriesFull.lineTwice / 2.;
		const auto skip = line * 3 / 2.;
		const auto scale = 1. - (2 * skip / photoSize);
		const auto center = photoSize / 2.;
		q.save();
		q.translate(center, center);
		q.scale(scale, scale);
		q.translate(-center, -center);
	}
	q.translate(-context.st->padding.left(), -context.st->padding.top());
	PaintUserpic(
		q,
		entry,
		peer,
		videoUserpic,
		view,
		context);
	q.translate(context.st->padding.left(), context.st->padding.top());
	if (storiesCount) {
		q.restore();

		const auto outline = QRectF(0, 0, photoSize, photoSize);
		const auto storiesUnread = st::dialogsStoriesFull.lineTwice / 2.;
		const auto storiesLine = st::dialogsStoriesFull.lineReadTwice / 2.;
		auto segments = std::vector<Ui::OutlineSegment>();
		if (data->storiesHasVideoStream) {
			const auto storiesVideoStreamBrush = st::attentionButtonFg->b;
			segments.push_back({ storiesVideoStreamBrush, storiesUnread });
		} else {
			const auto storiesUnreadCount = data->storiesUnreadCount;
			const auto storiesUnreadBrush = [&] {
				if (context.active || !storiesUnreadCount) {
					return st::dialogsUnreadBgMutedActive->b;
				}
				auto gradient = Ui::UnreadStoryOutlineGradient(outline);
				return QBrush(gradient);
			}();
			const auto storiesBrush = context.active
				? st::dialogsUnreadBgMutedActive->b
				: st::dialogsUnreadBgMuted->b;
			segments.reserve(storiesCount);
			const auto storiesReadCount = storiesCount - storiesUnreadCount;
			for (auto i = 0; i != storiesReadCount; ++i) {
				segments.push_back({ storiesBrush, storiesLine });
			}
			for (auto i = 0; i != storiesUnreadCount; ++i) {
				segments.push_back({ storiesUnreadBrush, storiesUnread });
			}
		}
		if (peer && (peer->forum() || peer->monoforum())) {
			const auto radius = context.st->photoSize
				* Ui::ForumUserpicRadiusMultiplier();
			Ui::PaintOutlineSegments(q, outline, radius, segments);
		} else {
			Ui::PaintOutlineSegments(q, outline, segments);
		}

		if (data->storiesHasVideoStream) {
			Ui::PaintLiveBadge(q, 0, 0, photoSize);
		}
	}

	if (subscribed) {
		const auto &s = st::dialogsSubscriptionBadgeSkip;
		const auto x = photoSize - s.x() - st::dialogsSubscriptionBadgeSize;
		const auto y = photoSize - s.y() - st::dialogsSubscriptionBadgeSize;
		const auto skip = SubscriptionCutSkip();
		q.resetTransform();
		q.setCompositionMode(QPainter::CompositionMode_DestinationOut);
		q.drawImage(x - skip, y - skip, SubscriptionCutMask());
		q.setCompositionMode(QPainter::CompositionMode_SourceOver);
		q.drawImage(x, y, SubscriptionIcon());
		return;
	}

	if (communityMember) {
		if (!hq) {
			hq.emplace(q);
		}
		q.setCompositionMode(QPainter::CompositionMode_Source);
		const auto size = st::dialogsCommunityBadgeSize;
		const auto &skip = st::dialogsCommunityBadgeSkip;
		const auto rect = QRectF(
			photoSize - skip.x() - size,
			photoSize - skip.y() - size,
			size,
			size);
		auto pen = QPen(Qt::transparent);
		pen.setWidthF(st::dialogsCommunityBadgeStroke);
		q.setPen(pen);
		q.setBrush(st::windowFg);
		q.drawEllipse(rect);
		q.setCompositionMode(QPainter::CompositionMode_SourceOver);

		const auto center = rect.center();
		const auto arm = size / 4.;
		auto arrow = QPen(st::windowBg->c);
		arrow.setWidthF(st::dialogsCommunityBadgeLine);
		arrow.setCapStyle(Qt::RoundCap);
		arrow.setJoinStyle(Qt::MiterJoin);
		q.setPen(arrow);
		q.setBrush(Qt::NoBrush);
		auto path = QPainterPath();
		path.moveTo(center.x() - arm, center.y() - arm / 2.);
		path.lineTo(center.x(), center.y() + arm / 2.);
		path.lineTo(center.x() + arm, center.y() - arm / 2.);
		q.drawPath(path);
		return;
	}

	const auto &manager = data->layersManager;
	if (const auto p = manager.progressForLayer(kBottomLayer); p > 0.) {
		const auto size = photoSize;
		if (data->cacheTTL.isNull() && peer && peer->messagesTTL()) {
			data->cacheTTL = CornerBadgeTTL(peer, view, size);
		}
		q.setOpacity(p);
		const auto point = CornerBadgeTTLRect(size).topLeft();
		q.drawImage(point, data->cacheTTL);
		q.setOpacity(1.);
	}
	if (const auto p = manager.progressForLayer(kHiddenLayer); p > 0.) {
		const auto rect = CornerBadgeHiddenRect(photoSize);
		if (data->cacheHidden.isNull() && peer && hidden) {
			data->cacheHidden = CornerBadgeHidden(peer, view, photoSize);
		}
		if (!data->cacheHidden.isNull()) {
			q.setOpacity(p);
			q.drawImage(rect.topLeft(), data->cacheHidden);
			q.setOpacity(1.);
			if (!hq) {
				hq.emplace(q);
			}
			q.setCompositionMode(QPainter::CompositionMode_Source);
			auto pen = QPen(Qt::transparent);
			pen.setWidthF(st::dialogsOnlineBadgeStroke * p);
			q.setPen(pen);
			q.setBrush(Qt::NoBrush);
			q.drawEllipse(QRectF(rect));
			q.setCompositionMode(QPainter::CompositionMode_SourceOver);
		}
	}
	const auto topLayerProgress = manager.progressForLayer(kTopLayer);
	if (!topLayerProgress) {
		return;
	}

	if (!hq) {
		hq.emplace(q);
	}
	q.setCompositionMode(QPainter::CompositionMode_Source);

	const auto online = peer && peer->isUser();
	const auto size = online
		? st::dialogsOnlineBadgeSize
		: st::dialogsCallBadgeSize;
	const auto stroke = st::dialogsOnlineBadgeStroke;
	const auto skip = online
		? st::dialogsOnlineBadgeSkip
		: st::dialogsCallBadgeSkip;
	const auto shrink = (size / 2) * (1. - topLayerProgress);

	auto pen = QPen(Qt::transparent);
	pen.setWidthF(stroke * topLayerProgress);
	q.setPen(pen);
	q.setBrush(data->active
		? st::dialogsOnlineBadgeFgActive
		: st::dialogsOnlineBadgeFg);
	q.drawEllipse(QRectF(
		photoSize - skip.x() - size,
		photoSize - skip.y() - size,
		size,
		size
	).marginsRemoved({ shrink, shrink, shrink, shrink }));
}

void Row::paintUserpic(
		Painter &p,
		not_null<Entry*> entry,
		PeerData *peer,
		Ui::VideoUserpic *videoUserpic,
		const Ui::PaintContext &context,
		bool hasUnreadBadgesAbove) const {
	const auto communityChannel = peer ? peer->asChannel() : nullptr;
	if (communityChannel && communityChannel->isCommunity()) {
		if (!_communityUserpicEffect) {
			_communityUserpicEffect
				= std::make_unique<Ui::CommunityUserpicEffect>();
		}
		Ui::PaintCommunityUserpicEffect(
			p,
			*_communityUserpicEffect,
			context.st->padding.left(),
			context.st->padding.top(),
			context.st->photoSize,
			st::windowSubTextFg->c);
	} else if (_communityUserpicEffect) {
		_communityUserpicEffect = nullptr;
	}
	const auto insideCommunity = context.insideCommunity;
	const auto hidden = peer
		&& context.community
		&& context.community->isHidden(peer);
	if (peer) {
		updateCornerBadgeShown(
			peer,
			nullptr,
			hasUnreadBadgesAbove,
			insideCommunity,
			hidden);
	}

	const auto cornerBadgeShown = !_cornerBadgeUserpic
		? _cornerBadgeShown
		: !_cornerBadgeUserpic->layersManager.isDisplayedNone();
	const auto storiesPeer = peer
		? ((peer->isUser() || peer->isChannel()) ? peer : nullptr)
		: nullptr;
	const auto storiesFolder = peer ? nullptr : _id.folder();
	const auto storiesHas = storiesPeer
		? storiesPeer->hasActiveStories()
		: storiesFolder
		? (storiesFolder->storiesCount() > 0)
		: false;
	if (!cornerBadgeShown && !storiesHas) {
		BasicRow::paintUserpic(p, entry, peer, videoUserpic, context, false);
		if (!peer || !_cornerBadgeShown) {
			_cornerBadgeUserpic = nullptr;
		}
		return;
	}
	ensureCornerBadgeUserpic();
	const auto ratio = style::DevicePixelRatio();
	const auto framePadding = std::max({
		-st::dialogsCallBadgeSkip.x(),
		-st::dialogsCallBadgeSkip.y(),
		st::lineWidth * 2 });
	const auto frameSide = (2 * framePadding + context.st->photoSize)
		* ratio;
	const auto frameSize = QSize(frameSide, frameSide);
	const auto storiesSource = (storiesHas && storiesPeer)
		? storiesPeer->owner().stories().source(storiesPeer->id)
		: nullptr;
	const auto storiesCountReal = storiesSource
		? int(storiesSource->ids.size())
		: storiesFolder
		? storiesFolder->storiesCount()
		: storiesHas
		? 1
		: 0;
	const auto storiesUnreadCountReal = storiesSource
		? storiesSource->unreadCount()
		: storiesFolder
		? storiesFolder->storiesUnreadCount()
		: (storiesPeer && storiesPeer->hasUnreadStories())
		? 1
		: 0;
	const auto storiesHasVideoStream = storiesSource
		? storiesSource->hasVideoStream
		: (storiesPeer && storiesPeer->hasActiveVideoStream())
		? 1
		: 0;
	const auto limit = Ui::kOutlineSegmentsMax;
	const auto storiesCount = std::min(storiesCountReal, limit);
	const auto storiesUnreadCount = std::min(storiesUnreadCountReal, limit);
	if (_cornerBadgeUserpic->frame.size() != frameSize) {
		_cornerBadgeUserpic->frame = QImage(
			frameSize,
			QImage::Format_ARGB32_Premultiplied);
		_cornerBadgeUserpic->frame.setDevicePixelRatio(ratio);
	}
	auto key = peer ? peer->userpicUniqueKey(userpicView()) : InMemoryKey();
	key.first += peer ? peer->messagesTTL() : 0;
	const auto frameIndex = videoUserpic ? videoUserpic->frameIndex() : -1;
	const auto paletteVersionReal = style::PaletteVersion();
	const auto paletteVersion = (paletteVersionReal & ((1 << 17) - 1));
	const auto active = context.active ? 1 : 0;
	const auto keyChanged = (_cornerBadgeUserpic->key != key)
		|| (_cornerBadgeUserpic->paletteVersion != paletteVersion);
	if (keyChanged) {
		_cornerBadgeUserpic->cacheTTL = QImage();
		_cornerBadgeUserpic->cacheHidden = QImage();
	}
	const auto badgeChannel = peer ? peer->asChannel() : nullptr;
	const auto badgeUser = peer ? peer->asUser() : nullptr;
	const auto subscribed = Data::ChannelHasSubscriptionUntilDate(
		badgeChannel);
	const auto communityMember = peer
		&& Data::PeerLinkedCommunityId(peer)
		&& !(badgeChannel && Data::ChannelHasActiveCall(badgeChannel))
		&& !(badgeUser && Data::IsUserOnline(badgeUser))
		&& !subscribed
		&& !insideCommunity;
	// Only stories outline and online badge differ for active row.
	const auto activeMatters = storiesCount
		|| !(subscribed || communityMember);
	if (keyChanged
		|| !_cornerBadgeUserpic->layersManager.isFinished()
		|| (activeMatters && _cornerBadgeUserpic->active != active)
		|| _cornerBadgeUserpic->hidden != (hidden ? 1 : 0)
		|| _cornerBadgeUserpic->frameIndex != frameIndex
		|| _cornerBadgeUserpic->storiesCount != storiesCount
		|| _cornerBadgeUserpic->storiesUnreadCount != storiesUnreadCount
		|| _cornerBadgeUserpic->storiesHasVideoStream != storiesHasVideoStream
		|| videoUserpic) {
		_cornerBadgeUserpic->key = key;
		_cornerBadgeUserpic->paletteVersion = paletteVersion;
		_cornerBadgeUserpic->active = active;
		_cornerBadgeUserpic->hidden = hidden ? 1 : 0;
		_cornerBadgeUserpic->storiesCount = storiesCount;
		_cornerBadgeUserpic->storiesUnreadCount = storiesUnreadCount;
		_cornerBadgeUserpic->storiesHasVideoStream = storiesHasVideoStream;
		_cornerBadgeUserpic->frameIndex = frameIndex;
		_cornerBadgeUserpic->layersManager.markFrameShown();
		PaintCornerBadgeFrame(
			_cornerBadgeUserpic.get(),
			framePadding,
			_id.entry(),
			peer,
			videoUserpic,
			userpicView(),
			context,
			subscribed,
			communityMember,
			hidden);
	}
	p.drawImage(
		context.st->padding.left() - framePadding,
		context.st->padding.top() - framePadding,
		_cornerBadgeUserpic->frame);
	const auto history = _id.history();
	if (!history
		|| history->peer->isUser()
		|| subscribed
		|| communityMember
		|| (hidden
			&& !(badgeChannel && Data::ChannelHasActiveCall(badgeChannel)))) {
		return;
	}
	const auto actionPainter = history->sendActionPainter();
	const auto bg = context.active
		? st::dialogsBgActive
		: st::dialogsBg;
	const auto size = st::dialogsCallBadgeSize;
	const auto skip = st::dialogsCallBadgeSkip;
	p.setOpacity(
		_cornerBadgeUserpic->layersManager.progressForLayer(kTopLayer));
	p.translate(context.st->padding.left(), context.st->padding.top());
	actionPainter->paintSpeaking(
		p,
		context.st->photoSize - skip.x() - size,
		context.st->photoSize - skip.y() - size,
		context.width,
		bg,
		context.now);
	p.translate(-context.st->padding.left(), -context.st->padding.top());
	p.setOpacity(1.);
}

bool Row::lookupIsInTopicJump(int x, int y) const {
	const auto history = this->history();
	return history && history->lastItemDialogsView().isInTopicJump(x, y);
}

void Row::stopLastRipple() {
	BasicRow::stopLastRipple();
	const auto history = this->history();
	const auto view = history ? &history->lastItemDialogsView() : nullptr;
	if (view) {
		view->stopLastRipple();
	}
}

void Row::clearRipple() {
	BasicRow::clearRipple();
	clearTopicJumpRipple();
}

void Row::addTopicJumpRipple(
		QPoint origin,
		not_null<Ui::TopicJumpCache*> topicJumpCache,
		Fn<void()> updateCallback) {
	const auto history = this->history();
	const auto view = history ? &history->lastItemDialogsView() : nullptr;
	if (view) {
		view->addTopicJumpRipple(
			origin,
			topicJumpCache,
			std::move(updateCallback));
		_topicJumpRipple = 1;
	}
}

void Row::clearTopicJumpRipple() {
	if (!_topicJumpRipple) {
		return;
	}
	const auto history = this->history();
	const auto view = history ? &history->lastItemDialogsView() : nullptr;
	if (view) {
		view->clearRipple();
	}
	_topicJumpRipple = 0;
}

bool Row::topicJumpRipple() const {
	return _topicJumpRipple != 0;
}

FakeRow::FakeRow(
	Key searchInChat,
	not_null<HistoryItem*> item,
	Fn<void()> repaint)
: _searchInChat(searchInChat)
, _item(item)
, _repaint(std::move(repaint)) {
	invalidateTopic();
}

void FakeRow::invalidateTopic() {
	_topic = _item->topic();
	if (_topic) {
		return;
	} else if (const auto rootId = _item->topicRootId()) {
		if (const auto forum = _item->history()->asForum()) {
			if (!forum->topicDeleted(rootId)) {
				forum->requestTopic(rootId, crl::guard(this, [=] {
					_topic = _item->topic();
					if (_topic) {
						_repaint();
					}
				}));
			}
		}
	}
}

const Ui::Text::String &FakeRow::name() const {
	if (_name.isEmpty()) {
		const auto from = _searchInChat
			? _item->displayFrom()
			: nullptr;
		const auto peer = from ? from : _item->history()->peer.get();
		_name.setText(
			st::semiboldTextStyle,
			peer->name(),
			Ui::NameTextOptions());
	}
	return _name;
}

DateText FakeRow::dateText(
		TimeId date,
		crl::time now) const {
	return ResolveDateText(_dateCache, date, now);
}

} // namespace Dialogs