Refresh participants after transfer.

Telegram/Resources/langs/lang.strings

@@ -1755,7 +1755,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_admin_log_removed_linked_chat" = "{from} removed the discussion group";
 "lng_admin_log_changed_linked_channel" = "{from} changed the linked channel to «{chat}»";
 "lng_admin_log_removed_linked_channel" = "{from} removed the linked channel";
-"lng_admin_log_changed_location_chat" = "{from} changed the group location";
+"lng_admin_log_changed_location_chat" = "{from} changed the group location to {address}";
 "lng_admin_log_removed_location_chat" = "{from} removed the group location";
 "lng_admin_log_user_with_username" = "{name} ({mention})";
 "lng_admin_log_restricted_forever" = "indefinitely";

Telegram/SourceFiles/apiwrap.cpp

@@ -3572,7 +3572,9 @@ void ApiWrap::parseRecentChannelParticipants(
 				availableCount,
 				list);
 		}
-		callbackList(availableCount, list);
+		if (callbackList) {
+			callbackList(availableCount, list);
+		}
 	}, std::move(callbackNotModified));
 }
 

Telegram/SourceFiles/apiwrap.h

@@ -331,7 +331,7 @@ public:
 		const MTPchannels_ChannelParticipants &result,
 		Fn<void(
 			int availableCount,
-			const QVector<MTPChannelParticipant> &list)> callbackList,
+			const QVector<MTPChannelParticipant> &list)> callbackList = nullptr,
 		Fn<void()> callbackNotModified = nullptr);
 	void addChatParticipants(
 		not_null<PeerData*> peer,

Telegram/SourceFiles/boxes/peers/edit_participants_box.cpp

@@ -718,6 +718,9 @@ ParticipantsBoxController::ParticipantsBoxController(
 	if (_role == Role::Profile) {
 		setupListChangeViewers();
 	}
+	if (const auto channel = _peer->asChannel()) {
+		subscribeToCreatorChange(channel);
+	}
 }
 
 void ParticipantsBoxController::setupListChangeViewers() {
@@ -1782,6 +1785,54 @@ void ParticipantsBoxController::subscribeToMigration() {
 void ParticipantsBoxController::migrate(not_null<ChannelData*> channel) {
 	_peer = channel;
 	_additional.migrate(channel);
+	subscribeToCreatorChange(channel);
+}
+
+void ParticipantsBoxController::subscribeToCreatorChange(
+		not_null<ChannelData*> channel) {
+	const auto isCreator = channel->amCreator();
+	channel->flagsValue(
+	) | rpl::filter([](const ChannelData::Flags::Change &change) {
+		return (change.diff & MTPDchannel::Flag::f_creator);
+	}) | rpl::filter([=] {
+		return (isCreator != channel->amCreator());
+	}) | rpl::start_with_next([=] {
+		if (channel->isBroadcast()) {
+			fullListRefresh();
+			return;
+		}
+		const auto weak = base::make_weak(this);
+		const auto api = &channel->session().api();
+		api->request(MTPchannels_GetParticipants(
+			channel->inputChannel,
+			MTP_channelParticipantsRecent(),
+			MTP_int(0),
+			MTP_int(Global::ChatSizeMax()),
+			MTP_int(0)
+		)).done([=](const MTPchannels_ChannelParticipants &result) {
+			channel->mgInfo->creator = channel->amCreator()
+				? channel->session().user().get()
+				: nullptr;
+			channel->mgInfo->lastAdmins.clear();
+			channel->mgInfo->lastRestricted.clear();
+			channel->mgInfo->lastParticipants.clear();
+			api->parseRecentChannelParticipants(channel, result);
+			if (weak) {
+				fullListRefresh();
+			}
+		}).send();
+	}, lifetime());
+}
+
+void ParticipantsBoxController::fullListRefresh() {
+	_additional = ParticipantsAdditionalData(_peer, _role);
+
+	while (const auto count = delegate()->peerListFullRowsCount()) {
+		delegate()->peerListRemoveRow(
+			delegate()->peerListRowAt(count - 1));
+	}
+	loadMoreRows();
+	delegate()->peerListRefreshRows();
 }
 
 ParticipantsBoxSearchController::ParticipantsBoxSearchController(

Telegram/SourceFiles/boxes/peers/edit_participants_box.h

@@ -104,6 +104,7 @@ private:
 	UserData *applyBanned(const MTPDchannelParticipantBanned &data);
 	void fillFromChat(not_null<ChatData*> chat);
 	void fillFromChannel(not_null<ChannelData*> channel);
+	void subscribeToCreatorChange(not_null<ChannelData*> channel);
 
 	not_null<PeerData*> _peer;
 	Role _role = Role::Members;
@@ -226,6 +227,8 @@ private:
 
 	void subscribeToMigration();
 	void migrate(not_null<ChannelData*> channel);
+	void subscribeToCreatorChange(not_null<ChannelData*> channel);
+	void fullListRefresh();
 
 	not_null<Window::SessionNavigation*> _navigation;
 	not_null<PeerData*> _peer;

Telegram/SourceFiles/history/admin_log/history_admin_log_item.cpp

@@ -9,6 +9,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "history/admin_log/history_admin_log_inner.h"
 #include "history/view/history_view_element.h"
+#include "history/history_location_manager.h"
 #include "history/history_service.h"
 #include "history/history_message.h"
 #include "history/history.h"
@@ -604,9 +605,25 @@ void GenerateItems(
 	};
 
 	auto createChangeLocation = [&](const MTPDchannelAdminLogEventActionChangeLocation &action) {
-		const auto now = (action.vnew_value.type() != mtpc_channelLocationEmpty);
-		auto text = (now ? lng_admin_log_changed_location_chat : lng_admin_log_removed_location_chat)(lt_from, fromLinkText);
-		addSimpleServiceMessage(text);
+		action.vnew_value.match([&](const MTPDchannelLocation &data) {
+			const auto address = qs(data.vaddress);
+			const auto link = data.vgeo_point.match([&](const MTPDgeoPoint &data) {
+				return textcmdLink(
+					LocationClickHandler::Url(LocationCoords(data)),
+					address);
+			}, [&](const MTPDgeoPointEmpty &) {
+				return address;
+			});
+			const auto text = lng_admin_log_changed_location_chat(
+				lt_from,
+				fromLinkText,
+				lt_address,
+				link);
+			addSimpleServiceMessage(text);
+		}, [&](const MTPDchannelLocationEmpty &) {
+			const auto text = lng_admin_log_removed_location_chat(lt_from, fromLinkText);
+			addSimpleServiceMessage(text);
+		});
 	};
 
 	action.match([&](const MTPDchannelAdminLogEventActionChangeTitle &data) {

Telegram/SourceFiles/history/history_location_manager.cpp

@@ -52,8 +52,12 @@ void LocationClickHandler::onClick(ClickContext context) const {
 }
 
 void LocationClickHandler::setup() {
-	auto latlon = _coords.latAsString() + ',' + _coords.lonAsString();
-	_text = qsl("https://maps.google.com/maps?q=") + latlon + qsl("&ll=") + latlon + qsl("&z=16");
+	_text = Url(_coords);
+}
+
+QString LocationClickHandler::Url(const LocationCoords &coords) {
+	const auto latlon = coords.latAsString() + ',' + coords.lonAsString();
+	return qsl("https://maps.google.com/maps?q=") + latlon + qsl("&ll=") + latlon + qsl("&z=16");
 }
 
 LocationData::LocationData(const LocationCoords &coords)

Telegram/SourceFiles/history/history_location_manager.h

@@ -98,6 +98,8 @@ public:
 		setup();
 	}
 
+	static QString Url(const LocationCoords &coords);
+
 	void onClick(ClickContext context) const override;
 
 	QString tooltip() const override {