Added experimental option to force embedded search in chat.

Telegram/SourceFiles/history/history_widget.cpp

@@ -5709,7 +5709,9 @@ bool HistoryWidget::searchInChatEmbedded(
 		Dialogs::Key chat,
 		PeerData *searchFrom) {
 	const auto peer = chat.peer(); // windows todo
-	if (!peer || Window::SeparateId(peer) != controller()->windowId()) {
+	if (!peer
+		|| ((Window::SeparateId(peer) != controller()->windowId())
+			&& !controller()->isPrimary())) {
 		return false;
 	} else if (_peer != peer) {
 		const auto weak = base::make_weak(this);

Telegram/SourceFiles/mainwidget.cpp

@@ -70,6 +70,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "media/player/media_player_dropdown.h"
 #include "media/player/media_player_instance.h"
 #include "base/qthelp_regex.h"
+#include "base/options.h"
 #include "mtproto/mtproto_dc_options.h"
 #include "core/update_checker.h"
 #include "core/shortcuts.h"
@@ -105,8 +106,16 @@ void ClearBotStartToken(PeerData *peer) {
 	}
 }
 
+base::options::toggle ForceComposeSearchOneColumn({
+	.id = kForceComposeSearchOneColumn,
+	.name = "Force embedded search in chats",
+	.description = "Force in one-column mode the embedded search in chats.",
+});
+
 } // namespace
 
+const char kForceComposeSearchOneColumn[] = "force-compose-search-one-column";
+
 enum StackItemType {
 	HistoryStackItem,
 	SectionStackItem,
@@ -782,7 +791,8 @@ void MainWidget::searchMessages(
 		return;
 	}
 	auto tags = Data::SearchTagsFromQuery(query);
-	if (_dialogs) {
+	if (_dialogs
+		&& (!ForceComposeSearchOneColumn.value() || !isOneColumn())) {
 		auto state = Dialogs::SearchState{
 			.inChat = ((tags.empty() || inChat.sublist())
 				? inChat

Telegram/SourceFiles/mainwidget.h

@@ -92,6 +92,8 @@ namespace Core {
 class Changelogs;
 } // namespace Core
 
+extern const char kForceComposeSearchOneColumn[];
+
 class MainWidget final
 	: public Ui::RpWidget
 	, private Media::Player::FloatDelegate {

Telegram/SourceFiles/settings/settings_experimental.cpp

@@ -28,6 +28,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "info/profile/info_profile_actions.h"
 #include "lang/lang_keys.h"
 #include "mainwindow.h"
+#include "mainwidget.h"
 #include "media/player/media_player_instance.h"
 #include "mtproto/session_private.h"
 #include "webview/webview_embed.h"
@@ -175,6 +176,7 @@ void SetupExperimental(
 	addToggle(Window::kOptionDisableTouchbar);
 	addToggle(Info::kAlternativeScrollProcessing);
 	addToggle(kModerateCommonGroups);
+	addToggle(kForceComposeSearchOneColumn);
 }
 
 } // namespace