Added date of admin promotional to EditAdminBox.

Telegram/Resources/langs/lang.strings

@@ -4226,6 +4226,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_rights_edit_admin_rank_about" = "A title that members will see instead of '{title}'.";
 "lng_rights_about_add_admins_yes" = "This admin will be able to add new admins with equal or fewer rights.";
 "lng_rights_about_add_admins_no" = "This admin will not be able to add new admins.";
+"lng_rights_about_by" = "This admin promoted by {user} at {date}.";
 
 "lng_rights_about_admin_cant_edit" = "You can't edit the rights of this admin.";
 "lng_rights_about_restriction_cant_edit" = "You cannot change the restrictions for this user.";

Telegram/SourceFiles/boxes/add_contact_box.cpp

@@ -217,7 +217,9 @@ void ShowAddParticipantsError(
 					channel,
 					user,
 					ChatAdminRightsInfo(),
-					QString());
+					QString(),
+					0,
+					nullptr);
 				box->setSaveCallback(saveCallback);
 				*weak = box.data();
 				show->showBox(std::move(box));

Telegram/SourceFiles/boxes/peers/add_bot_to_chat_box.cpp

@@ -170,11 +170,15 @@ void AddBotToGroupBoxController::requestExistingRights(
 				channel);
 			_existingRights = participant.rights().flags;
 			_existingRank = participant.rank();
+			_promotedSince = participant.promotedSince();
+			_promotedBy = participant.by();
 			addBotToGroup(_existingRightsChannel);
 		});
 	}).fail([=] {
 		_existingRights = ChatAdminRights();
 		_existingRank = QString();
+		_promotedSince = 0;
+		_promotedBy = 0;
 		addBotToGroup(_existingRightsChannel);
 	}).send();
 }
@@ -191,6 +195,8 @@ void AddBotToGroupBoxController::addBotToGroup(not_null<PeerData*> chat) {
 		_existingRights = {};
 		_existingRank = QString();
 		_existingRightsChannel = nullptr;
+		_promotedSince = 0;
+		_promotedBy = 0;
 		_bot->session().api().request(_existingRightsRequestId).cancel();
 	}
 	const auto requestedAddAdmin = (_scope == Scope::GroupAdmin)
@@ -241,9 +247,12 @@ void AddBotToGroupBoxController::addBotToGroup(not_null<PeerData*> chat) {
 			bot,
 			ChatAdminRightsInfo(rights),
 			_existingRank,
+			_promotedSince,
+			_promotedBy ? chat->owner().user(_promotedBy) : nullptr,
 			EditAdminBotFields{
 				_token,
-				_existingRights.value_or(ChatAdminRights()) });
+				_existingRights.value_or(ChatAdminRights()),
+			});
 		box->setSaveCallback(saveCallback);
 		controller->show(std::move(box));
 	} else {

Telegram/SourceFiles/boxes/peers/add_bot_to_chat_box.h

@@ -65,6 +65,8 @@ private:
 	mtpRequestId _existingRightsRequestId = 0;
 	std::optional<ChatAdminRights> _existingRights;
 	QString _existingRank;
+	TimeId _promotedSince = 0;
+	UserId _promotedBy = 0;
 
 	rpl::event_stream<not_null<PeerData*>> _groups;
 	rpl::event_stream<not_null<PeerData*>> _channels;

Telegram/SourceFiles/boxes/peers/add_participants_box.cpp

@@ -1276,7 +1276,9 @@ void AddSpecialBoxController::showAdmin(
 		_peer,
 		user,
 		currentRights,
-		_additional.adminRank(user));
+		_additional.adminRank(user),
+		_additional.adminPromotedSince(user),
+		_additional.adminPromotedBy(user));
 	const auto show = delegate()->peerListUiShow();
 	if (_additional.canAddOrEditAdmin(user)) {
 		const auto done = crl::guard(this, [=](

Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp

@@ -206,6 +206,8 @@ EditAdminBox::EditAdminBox(
 	not_null<UserData*> user,
 	ChatAdminRightsInfo rights,
 	const QString &rank,
+	TimeId promotedSince,
+	UserData *by,
 	std::optional<EditAdminBotFields> addingBot)
 : EditParticipantBox(
 	nullptr,
@@ -214,6 +216,8 @@ EditAdminBox::EditAdminBox(
 	(rights.flags != 0))
 , _oldRights(rights)
 , _oldRank(rank)
+, _promotedSince(promotedSince)
+, _by(by)
 , _addingBot(std::move(addingBot)) {
 }
 
@@ -288,8 +292,26 @@ void EditAdminBox::prepare() {
 			object_ptr<Ui::VerticalLayout>(this)));
 	const auto inner = _adminControlsWrap->entity();
 
-	Ui::AddDivider(inner);
-	Ui::AddSkip(inner);
+	if (_promotedSince) {
+		const auto parsed = base::unixtime::parse(_promotedSince);
+		const auto label = Ui::AddDividerText(
+			inner,
+			tr::lng_rights_about_by(
+				lt_user,
+				rpl::single(_by
+					? Ui::Text::Link(_by->name(), 1)
+					: TextWithEntities(QString::fromUtf8("\U0001F47B"))),
+				lt_date,
+				rpl::single(TextWithEntities{ langDateTimeFull(parsed) }),
+				Ui::Text::WithEntities));
+		if (_by) {
+			label->setLink(1, _by->createOpenLink());
+		}
+		Ui::AddSkip(inner);
+	} else {
+		Ui::AddDivider(inner);
+		Ui::AddSkip(inner);
+	}
 
 	const auto chat = peer()->asChat();
 	const auto channel = peer()->asChannel();

Telegram/SourceFiles/boxes/peers/edit_participant_box.h

@@ -79,6 +79,8 @@ public:
 		not_null<UserData*> user,
 		ChatAdminRightsInfo rights,
 		const QString &rank,
+		TimeId promotedSince,
+		UserData *by,
 		std::optional<EditAdminBotFields> addingBot = {});
 
 	void setSaveCallback(
@@ -130,6 +132,8 @@ private:
 	mtpRequestId _transferRequestId = 0;
 	Fn<void()> _save, _finishSave;
 
+	TimeId _promotedSince = 0;
+	UserData *_by = nullptr;
 	std::optional<EditAdminBotFields> _addingBot;
 
 };

Telegram/SourceFiles/boxes/peers/edit_participants_box.cpp

@@ -1748,7 +1748,9 @@ void ParticipantsBoxController::showAdmin(not_null<UserData*> user) {
 		_peer,
 		user,
 		currentRights,
-		_additional.adminRank(user));
+		_additional.adminRank(user),
+		_additional.adminPromotedSince(user),
+		_additional.adminPromotedBy(user));
 	if (_additional.canAddOrEditAdmin(user)) {
 		const auto done = crl::guard(this, [=](
 				ChatAdminRightsInfo newRights,