Show empty search results in emoji panel.

Telegram/Resources/langs/lang.strings

@@ -1877,6 +1877,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_masks_archive_pack" = "Archive Masks";
 "lng_masks_has_been_archived" = "Mask pack has been archived.";
 "lng_masks_installed" = "Mask pack has been installed.";
+"lng_emoji_nothing_found" = "No emoji found";
 
 "lng_in_dlg_photo" = "Photo";
 "lng_in_dlg_album" = "Album";

Telegram/SourceFiles/chat_helpers/chat_helpers.style

@@ -335,6 +335,7 @@ stickersToast: Toast(defaultToast) {
 }
 
 stickersEmpty: icon {{ "stickers_empty", windowSubTextFg }};
+emojiEmpty: icon {{ "stickers_empty", windowSubTextFg }};
 
 inlineBotsScroll: ScrollArea(defaultSolidScroll) {
 	deltat: stickerPanPadding;
@@ -396,7 +397,7 @@ reactStripBubble: icon{
 	{ "chat/reactions_bubble", windowBg },
 };
 reactStripBubbleRight: 20px;
-reactPanelEmojiPan: EmojiPan(statusEmojiPan) {
+userpicBuilderEmojiPan: EmojiPan(statusEmojiPan) {
 	margin: margins(reactStripSkip, 0px, reactStripSkip, 0px);
 	padding: margins(reactStripSkip, 0px, reactStripSkip, reactStripSkip);
 	desiredSize: reactStripSize;
@@ -405,6 +406,8 @@ reactPanelEmojiPan: EmojiPan(statusEmojiPan) {
 	search: TabbedSearch(defaultTabbedSearch) {
 		defaultFieldWidth: 88px;
 	}
+}
+reactPanelEmojiPan: EmojiPan(userpicBuilderEmojiPan) {
 	searchMargin: margins(1px, 10px, 2px, 6px);
 }
 emojiScroll: ScrollArea(defaultSolidScroll) {

Telegram/SourceFiles/chat_helpers/emoji_list_widget.cpp

@@ -621,7 +621,7 @@ void EmojiListWidget::prepareExpanding() {
 }
 
 void EmojiListWidget::paintExpanding(
-		QPainter &p,
+		Painter &p,
 		QRect clip,
 		int finalBottom,
 		float64 progress,
@@ -974,7 +974,7 @@ base::unique_qptr<Ui::PopupMenu> EmojiListWidget::fillContextMenu(
 }
 
 void EmojiListWidget::paintEvent(QPaintEvent *e) {
-	auto p = QPainter(this);
+	auto p = Painter(this);
 
 	const auto clip = e ? e->rect() : rect();
 
@@ -1018,7 +1018,7 @@ void EmojiListWidget::validateEmojiPaintContext(
 }
 
 void EmojiListWidget::paint(
-		QPainter &p,
+		Painter &p,
 		ExpandingContext context,
 		QRect clip) {
 	validateEmojiPaintContext(context);
@@ -1042,6 +1042,9 @@ void EmojiListWidget::paint(
 	auto selectedButton = std::get_if<OverButton>(!v::is_null(_pressed)
 		? &_pressed
 		: &_selected);
+	if (_searchResults.empty() && _searchMode) {
+		paintEmptySearchResults(p);
+	}
 	enumerateSections([&](const SectionInfo &info) {
 		if (clip.top() >= info.rowsBottom) {
 			return true;
@@ -2007,6 +2010,13 @@ int EmojiListWidget::paintButtonGetWidth(
 	return emojiRight() - rect.x();
 }
 
+void EmojiListWidget::paintEmptySearchResults(Painter &p) {
+	Inner::paintEmptySearchResults(
+		p,
+		st::emojiEmpty,
+		tr::lng_emoji_nothing_found(tr::now));
+}
+
 bool EmojiListWidget::eventHook(QEvent *e) {
 	if (e->type() == QEvent::ParentChange) {
 		if (_picker->parentWidget() != parentWidget()) {

Telegram/SourceFiles/chat_helpers/emoji_list_widget.h

@@ -125,7 +125,7 @@ public:
 
 	void prepareExpanding();
 	void paintExpanding(
-		QPainter &p,
+		Painter &p,
 		QRect clip,
 		int finalBottom,
 		float64 progress,
@@ -271,7 +271,7 @@ private:
 		Api::SendOptions options = Api::SendOptions());
 	void selectEmoji(EmojiChosen data);
 	void selectCustom(FileChosen data);
-	void paint(QPainter &p, ExpandingContext context, QRect clip);
+	void paint(Painter &p, ExpandingContext context, QRect clip);
 	void drawCollapsedBadge(QPainter &p, QPoint position, int count);
 	void drawRecent(
 		QPainter &p,
@@ -313,6 +313,7 @@ private:
 		const SectionInfo &info,
 		bool selected,
 		QRect clip) const;
+	void paintEmptySearchResults(Painter &p);
 
 	void displaySet(uint64 setId);
 	void removeSet(uint64 setId);

Telegram/SourceFiles/chat_helpers/stickers_list_widget.cpp

@@ -1080,20 +1080,10 @@ void StickersListWidget::pauseInvisibleLottieIn(const SectionInfo &info) {
 }
 
 void StickersListWidget::paintEmptySearchResults(Painter &p) {
-	const auto iconLeft = (width() - st::stickersEmpty.width()) / 2;
-	const auto iconTop = (height() / 3) - (st::stickersEmpty.height() / 2);
-	st::stickersEmpty.paint(p, iconLeft, iconTop, width());
-
-	const auto text = tr::lng_stickers_nothing_found(tr::now);
-	const auto textWidth = st::normalFont->width(text);
-	p.setFont(st::normalFont);
-	p.setPen(st::windowSubTextFg);
-	p.drawTextLeft(
-		(width() - textWidth) / 2,
-		iconTop + st::stickersEmpty.height() - st::normalFont->height,
-		width(),
-		text,
-		textWidth);
+	Inner::paintEmptySearchResults(
+		p,
+		st::stickersEmpty,
+		tr::lng_stickers_nothing_found(tr::now));
 }
 
 int StickersListWidget::megagroupSetInfoLeft() const {

Telegram/SourceFiles/chat_helpers/tabbed_selector.cpp

@@ -21,6 +21,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/layers/box_content.h"
 #include "ui/image/image_prepare.h"
 #include "ui/cached_round_corners.h"
+#include "ui/painter.h"
 #include "window/window_session_controller.h"
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
@@ -1283,6 +1284,30 @@ void TabbedSelector::Inner::checkHideWithBox(QPointer<Ui::BoxContent> box) {
 	});
 }
 
+void TabbedSelector::Inner::paintEmptySearchResults(
+		Painter &p,
+		const style::icon &icon,
+		const QString &text) const {
+	const auto iconLeft = (width() - icon.width()) / 2;
+	const auto iconTop = std::max(
+		(height() / 3) - (icon.height() / 2),
+		st::normalFont->height);
+	icon.paint(p, iconLeft, iconTop, width());
+
+	const auto textWidth = st::normalFont->width(text);
+	const auto textTop = std::min(
+		iconTop + icon.height() - st::normalFont->height,
+		height() - 2 * st::normalFont->height);
+	p.setFont(st::normalFont);
+	p.setPen(st::windowSubTextFg);
+	p.drawTextLeft(
+		(width() - textWidth) / 2,
+		textTop,
+		width(),
+		text,
+		textWidth);
+}
+
 void TabbedSelector::Inner::visibleTopBottomUpdated(
 		int visibleTop,
 		int visibleBottom) {

Telegram/SourceFiles/chat_helpers/tabbed_selector.h

@@ -376,6 +376,11 @@ protected:
 
 	void checkHideWithBox(QPointer<Ui::BoxContent> box);
 
+	void paintEmptySearchResults(
+		Painter &p,
+		const style::icon &icon,
+		const QString &text) const;
+
 private:
 	const style::EmojiPan &_st;
 	const not_null<Main::Session*> _session;

Telegram/SourceFiles/info/userpic/info_userpic_emoji_builder_widget.cpp

@@ -250,7 +250,7 @@ EmojiSelector::Selector EmojiSelector::createEmojiList(
 		.customRecentFactory = [=](DocumentId id, Fn<void()> repaint) {
 			return manager->create(id, std::move(repaint), tag);
 		},
-		.st = &st::reactPanelEmojiPan,
+		.st = &st::userpicBuilderEmojiPan,
 	};
 	const auto list = scroll->setOwnedWidget(
 		object_ptr<ChatHelpers::EmojiListWidget>(scroll, std::move(args)));