Make a nice selector for only-recent set.

Telegram/SourceFiles/chat_helpers/chat_helpers.style

@@ -24,6 +24,7 @@ EmojiPan {
 	iconSkip: pixels;
 	iconWidth: pixels;
 	iconArea: pixels;
+	bg: color;
 	overBg: color;
 	fadeLeft: icon;
 	fadeRight: icon;
@@ -198,6 +199,7 @@ defaultEmojiPan: EmojiPan {
 	iconSkip: 4px;
 	iconWidth: 35px;
 	iconArea: 32px;
+	bg: emojiPanBg;
 	overBg: emojiPanHover;
 	fadeLeft: icon {{ "fade_horizontal-flip_horizontal", emojiPanCategories }};
 	fadeRight: icon {{ "fade_horizontal", emojiPanCategories }};

Telegram/SourceFiles/chat_helpers/emoji_list_widget.cpp

@@ -395,7 +395,9 @@ EmojiListWidget::EmojiListWidget(
 , _picker(this)
 , _showPickerTimer([=] { showPicker(); }) {
 	setMouseTracking(true);
-	setAttribute(Qt::WA_OpaquePaintEvent);
+	if (st().bg->c.alpha() > 0) {
+		setAttribute(Qt::WA_OpaquePaintEvent);
+	}
 
 	_customSingleSize = Data::FrameSizeFromTag(
 		Data::CustomEmojiManager::SizeTag::Large
@@ -778,7 +780,9 @@ void EmojiListWidget::paintEvent(QPaintEvent *e) {
 	_repaintsScheduled.clear();
 
 	const auto clip = e ? e->rect() : rect();
-	p.fillRect(clip, st::emojiPanBg);
+	if (st().bg->c.alpha() > 0) {
+		p.fillRect(clip, st().bg);
+	}
 
 	paint(p, {}, clip);
 }

Telegram/SourceFiles/history/view/reactions/history_view_reactions_selector.cpp

@@ -181,7 +181,9 @@ int Selector::countWidth(int desiredWidth, int maxWidth) {
 		(maxWidth - 2 * _skipx) / _size);
 	_columns = std::min(possibleColumns, max);
 	_small = (possibleColumns - _columns > 1);
-	_recentRows = (_strip.count() + _columns - 1) / _columns;
+	_recentRows = (_reactions.recent.size()
+		+ (_reactions.morePremiumAvailable ? 1 : 0)
+		+ _columns - 1) / _columns;
 	const auto added = (_columns < max || _reactions.customAllowed)
 		? Strip::AddedButton::Expand
 		: _reactions.morePremiumAvailable
@@ -207,10 +209,11 @@ int Selector::extendTopForCategories() const {
 	return _reactions.customAllowed ? st::reactPanelEmojiPan.footer : 0;
 }
 
-int Selector::desiredHeight() const {
+int Selector::minimalHeight() const {
-	return _reactions.customAllowed
+	return _skipy
-		? st::emojiPanMaxHeight
+		+ (_recentRows * _size)
-		: (_skipy + _recentRows * _size + _skipBottom);
+		+ st::roundRadiusSmall
+		+ st::reactPanelEmojiPan.padding.bottom();
 }
 
 void Selector::setSpecialExpandTopSkip(int skip) {
@@ -363,7 +366,9 @@ auto Selector::paintExpandingBg(QPainter &p, float64 progress)
 	const auto frame = int(base::SafeRound(progress * (kFramesCount - 1)));
 	const auto radiusStart = st::reactStripHeight / 2.;
 	const auto radiusEnd = st::roundRadiusSmall;
-	const auto radius = radiusStart + progress * (radiusEnd - radiusStart);
+	const auto radius = _reactions.customAllowed
+		? (radiusStart + progress * (radiusEnd - radiusStart))
+		: radiusStart;
 	const auto extents = extentsForShadow();
 	const auto expanding = anim::easeOutCirc(1., progress);
 	const auto expandUp = anim::interpolate(0, _collapsedTopSkip, expanding);
@@ -624,6 +629,9 @@ void Selector::createList(not_null<Window::SessionController*> controller) {
 	const auto st = lifetime().make_state<style::EmojiPan>(
 		st::reactPanelEmojiPan);
 	st->padding.setTop(_skipy);
+	if (!_reactions.customAllowed) {
+		st->bg = st::transparent;
+	}
 	_list = _scroll->setOwnedWidget(
 		object_ptr<EmojiListWidget>(_scroll, EmojiListDescriptor{
 			.session = &controller->session(),
@@ -722,9 +730,7 @@ bool AdjustMenuGeometryForSelector(
 	const auto height = menu->height();
 	const auto fullTop = extents.top() + categoriesTop + extend.top();
 	const auto minimalHeight = extents.top()
-		+ std::min(
+		+ selector->minimalHeight()
-			selector->desiredHeight(),
-			categoriesTop + st::emojiPanMinHeight / 2)
 		+ extents.bottom();
 	const auto willBeHeightWithoutBottomPadding = fullTop
 		+ height

Telegram/SourceFiles/history/view/reactions/history_view_reactions_selector.h

@@ -46,7 +46,7 @@ public:
 	int countWidth(int desiredWidth, int maxWidth);
 	[[nodiscard]] QMargins extentsForShadow() const;
 	[[nodiscard]] int extendTopForCategories() const;
-	[[nodiscard]] int desiredHeight() const;
+	[[nodiscard]] int minimalHeight() const;
 	void setSpecialExpandTopSkip(int skip);
 	void initGeometry(int innerTop);
 

Telegram/SourceFiles/history/view/reactions/history_view_reactions_strip.cpp

@@ -38,6 +38,7 @@ constexpr auto kHoverScale = 1.24;
 		.json = media->bytes(),
 		.sizeOverride = QSize(size, size),
 		.frame = frame,
+		.limitFps = true,
 	});
 }
 

Telegram/SourceFiles/settings/settings_common.cpp

@@ -268,6 +268,10 @@ LottieIcon CreateLottieIcon(
 		not_null<QWidget*> parent,
 		Lottie::IconDescriptor &&descriptor,
 		style::margins padding) {
+	Expects(!descriptor.frame); // I'm not sure it considers limitFps.
+
+	descriptor.limitFps = true;
+
 	auto object = object_ptr<Ui::RpWidget>(parent);
 	const auto raw = object.data();
 

Telegram/lib_lottie

@@ -1 +1 @@
-Subproject commit f3563bc6b0e042095d4d667d013f62cb8ae62b65
+Subproject commit d4764ed8bf0ba2309847bca99f7f8b3d58db25b4