From 1de144a48d9022b1261229a614db8a0d8f8d2972 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Fri, 23 Oct 2020 17:37:27 +0300
Subject: [PATCH] Show transfer ownership button for non-anonymous admins.

---
 Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp   | 2 +-
 .../SourceFiles/boxes/peers/edit_peer_permissions_box.cpp   | 6 ++++--
 .../SourceFiles/boxes/peers/edit_peer_permissions_box.h     | 2 +-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp b/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
index d23abb04c6..7f82a7f3bb 100644
--- a/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
+++ b/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
@@ -308,7 +308,7 @@ void EditAdminBox::prepare() {
 	}, lifetime());
 
 	if (canTransferOwnership()) {
-		const auto allFlags = FullAdminRights(isGroup);
+		const auto allFlags = AdminRightsForOwnershipTransfer(isGroup);
 		setupTransferButton(
 			isGroup
 		)->toggleOn(rpl::duplicate(
diff --git a/Telegram/SourceFiles/boxes/peers/edit_peer_permissions_box.cpp b/Telegram/SourceFiles/boxes/peers/edit_peer_permissions_box.cpp
index 29ac53e516..91e0a0dfe0 100644
--- a/Telegram/SourceFiles/boxes/peers/edit_peer_permissions_box.cpp
+++ b/Telegram/SourceFiles/boxes/peers/edit_peer_permissions_box.cpp
@@ -298,10 +298,12 @@ ChatRestrictions FixDependentRestrictions(ChatRestrictions restrictions) {
 	return restrictions;
 }
 
-ChatAdminRights FullAdminRights(bool isGroup) {
+ChatAdminRights AdminRightsForOwnershipTransfer(bool isGroup) {
 	auto result = ChatAdminRights();
 	for (const auto &[flag, label] : AdminRightLabels(isGroup, true)) {
-		result |= flag;
+		if (!(flag & ChatAdminRight::f_anonymous)) {
+			result |= flag;
+		}
 	}
 	return result;
 }
diff --git a/Telegram/SourceFiles/boxes/peers/edit_peer_permissions_box.h b/Telegram/SourceFiles/boxes/peers/edit_peer_permissions_box.h
index 53f16ea38e..b7dfd4ed07 100644
--- a/Telegram/SourceFiles/boxes/peers/edit_peer_permissions_box.h
+++ b/Telegram/SourceFiles/boxes/peers/edit_peer_permissions_box.h
@@ -71,4 +71,4 @@ EditFlagsControl<MTPDchatAdminRights::Flags> CreateEditAdminRights(
 
 ChatAdminRights DisabledByDefaultRestrictions(not_null<PeerData*> peer);
 ChatRestrictions FixDependentRestrictions(ChatRestrictions restrictions);
-ChatAdminRights FullAdminRights(bool isGroup);
+ChatAdminRights AdminRightsForOwnershipTransfer(bool isGroup);