Fixed issue that caused peer list box height to fluctuate on show.

Related commit: 64975f2dd5.

Telegram/SourceFiles/boxes/peer_list_box.cpp

@@ -185,10 +185,7 @@ void PeerListBox::prepare() {
 		object_ptr<PeerListContent>(
 			this,
 			_controller.get()),
-		st::boxScroll,
-		0,
-		0,
-		true /*alwaysKeepDimensionsToInner*/));
+		st::boxScroll));
 	content()->resizeToWidth(_controller->contentWidth());
 
 	_controller->setDelegate(this);
@@ -213,6 +210,15 @@ void PeerListBox::prepare() {
 	if (_init) {
 		_init(this);
 	}
+
+	{
+		setDimensions(
+			_controller->contentWidth(),
+			std::clamp(
+				content()->height(),
+				st::boxMaxListHeight,
+				st::boxMaxListHeight * 3));
+	}
 }
 
 void PeerListBox::keyPressEvent(QKeyEvent *e) {

Telegram/SourceFiles/boxes/peer_lists_box.cpp

@@ -148,10 +148,7 @@ void PeerListsBox::updateScrollSkips() {
 void PeerListsBox::prepare() {
 	auto rows = setInnerWidget(
 		object_ptr<Ui::VerticalLayout>(this),
-		st::boxScroll,
-		0,
-		0,
-		true /*alwaysKeepDimensionsToInner*/);
+		st::boxScroll);
 	for (auto &list : _lists) {
 		const auto content = rows->add(object_ptr<PeerListContent>(
 			rows,
@@ -181,7 +178,14 @@ void PeerListsBox::prepare() {
 	}
 	rows->resizeToWidth(firstController()->contentWidth());
 
-	setDimensions(firstController()->contentWidth(), st::boxMaxListHeight);
+	{
+		setDimensions(
+			firstController()->contentWidth(),
+			std::clamp(
+				rows->height(),
+				st::boxMaxListHeight,
+				st::boxMaxListHeight * 3));
+	}
 	if (_select) {
 		_select->finishAnimating();
 		Ui::SendPendingMoveResizeEvents(_select);