Show some special filter icons.

Telegram/SourceFiles/dialogs/dialogs_widget.cpp

@@ -1501,7 +1501,7 @@ void Widget::updateControlsGeometry() {
 	}
 	auto smallLayoutWidth = (st::dialogsPadding.x() + st::dialogsPhotoSize + st::dialogsPadding.x());
 	auto smallLayoutRatio = (width() < st::columnMinimalWidthLeft) ? (st::columnMinimalWidthLeft - width()) / float64(st::columnMinimalWidthLeft - smallLayoutWidth) : 0.;
-	auto filterLeft = (controller()->filtersWidth() ? 0 : st::dialogsFilterPadding.x() + _mainMenuToggle->width()) + st::dialogsFilterPadding.x();
+	auto filterLeft = (controller()->filtersWidth() ? st::dialogsFilterSkip : st::dialogsFilterPadding.x() + _mainMenuToggle->width()) + st::dialogsFilterPadding.x();
 	auto filterRight = (Global::LocalPasscode() ? (st::dialogsFilterPadding.x() + _lockUnlock->width()) : st::dialogsFilterSkip) + st::dialogsFilterPadding.x();
 	auto filterWidth = qMax(width(), st::columnMinimalWidthLeft) - filterLeft - filterRight;
 	auto filterAreaHeight = st::topBarHeight;

Telegram/SourceFiles/window/window_filters_menu.cpp

@@ -16,6 +16,55 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "styles/style_window.h"
 
 namespace Window {
+namespace {
+
+enum class Type {
+	Unread,
+	Unmuted,
+	Custom,
+};
+
+[[nodiscard]] Type ComputeType(const Data::ChatFilter &filter) {
+	using Flag = Data::ChatFilter::Flag;
+
+	const auto all = Flag::Contacts
+		| Flag::NonContacts
+		| Flag::Groups
+		| Flag::Broadcasts
+		| Flag::Bots
+		| Flag::NoArchive;
+	if (!filter.always().empty()) {
+		return Type::Custom;
+	} else if (filter.flags() == (all | Flag::NoRead)) {
+		return Type::Unread;
+	} else if (filter.flags() == (all | Flag::NoMuted)) {
+		return Type::Unmuted;
+	}
+	return Type::Custom;
+}
+
+[[nodiscard]] std::array<const style::icon*, 2> ComputeIcons(Type type) {
+	switch (type) {
+	case Type::Unread:
+		return {
+			&st::windowFiltersUnread,
+			&st::windowFiltersUnreadActive
+		};
+	case Type::Unmuted:
+		return {
+			&st::windowFiltersUnmuted,
+			&st::windowFiltersUnmutedActive
+		};
+	case Type::Custom:
+		return {
+			&st::windowFiltersCustom,
+			&st::windowFiltersCustomActive
+		};
+	}
+	Unexpected("Filter type in FiltersMenu::refresh.");
+}
+
+} // namespace
 
 FiltersMenu::FiltersMenu(
 	not_null<Ui::RpWidget*> parent,
@@ -73,18 +122,20 @@ void FiltersMenu::refresh() {
 		QString::number(0),
 		"All Chats",
 		QString(),
-		&st::windowFiltersCustom,
+		&st::windowFiltersAll,
-		&st::windowFiltersCustomActive,
+		&st::windowFiltersAllActive,
 		st::windowFiltersIconTop
 	});
 	const auto filters = &_session->session().data().chatsFilters();
 	for (const auto &filter : filters->list()) {
+		const auto type = ComputeType(filter);
+		const auto icons = ComputeIcons(type);
 		items.push_back({
 			QString::number(filter.id()),
 			filter.title(),
 			QString(),
-			&st::windowFiltersCustom,
+			icons[0],
-			&st::windowFiltersCustomActive,
+			icons[1],
 			st::windowFiltersIconTop
 		});
 	}