From 0a678ae8bdf512038e2bc1293ed66462c3ea30b8 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Fri, 19 Feb 2021 14:18:13 +0400
Subject: [PATCH] No 'Clear History' for everyone in groups.

---
 Telegram/Resources/tl/api.tl                     | 2 +-
 Telegram/SourceFiles/boxes/confirm_box.cpp       | 2 ++
 Telegram/SourceFiles/data/data_histories.cpp     | 4 ----
 Telegram/SourceFiles/window/window_peer_menu.cpp | 8 ++++----
 4 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/Telegram/Resources/tl/api.tl b/Telegram/Resources/tl/api.tl
index 1a6e752086..01457d6b91 100644
--- a/Telegram/Resources/tl/api.tl
+++ b/Telegram/Resources/tl/api.tl
@@ -1568,7 +1568,7 @@ channels.editBanned#72796912 channel:InputChannel user_id:InputUser banned_right
 channels.getAdminLog#33ddf480 flags:# channel:InputChannel q:string events_filter:flags.0?ChannelAdminLogEventsFilter admins:flags.1?Vector<InputUser> max_id:long min_id:long limit:int = channels.AdminLogResults;
 channels.setStickers#ea8ca4f9 channel:InputChannel stickerset:InputStickerSet = Bool;
 channels.readMessageContents#eab5dc38 channel:InputChannel id:Vector<int> = Bool;
-channels.deleteHistory#bda41f3f flags:# for_everyone:flags.0?true channel:InputChannel max_id:int = Bool;
+channels.deleteHistory#af369d42 channel:InputChannel max_id:int = Bool;
 channels.togglePreHistoryHidden#eabbb94c channel:InputChannel enabled:Bool = Updates;
 channels.getLeftChannels#8341ecc0 offset:int = messages.Chats;
 channels.getGroupsForDiscussion#f5dad378 = messages.Chats;
diff --git a/Telegram/SourceFiles/boxes/confirm_box.cpp b/Telegram/SourceFiles/boxes/confirm_box.cpp
index f2b12f4bd5..3828af9e45 100644
--- a/Telegram/SourceFiles/boxes/confirm_box.cpp
+++ b/Telegram/SourceFiles/boxes/confirm_box.cpp
@@ -750,6 +750,8 @@ auto DeleteMessagesBox::revokeText(not_null<PeerData*> peer) const
 				tr::now,
 				lt_user,
 				user->firstName);
+		} else if (_wipeHistoryJustClear) {
+			return std::nullopt;
 		} else {
 			result.checkbox = tr::lng_delete_for_everyone_check(tr::now);
 		}
diff --git a/Telegram/SourceFiles/data/data_histories.cpp b/Telegram/SourceFiles/data/data_histories.cpp
index 47f388fd5d..6c9eacc2af 100644
--- a/Telegram/SourceFiles/data/data_histories.cpp
+++ b/Telegram/SourceFiles/data/data_histories.cpp
@@ -606,11 +606,7 @@ void Histories::deleteAllMessages(
 			//	}
 			}).send();
 		} else if (channel) {
-			const auto flags = revoke
-				? MTPchannels_DeleteHistory::Flag::f_for_everyone
-				: MTPchannels_DeleteHistory::Flag(0);
 			return session().api().request(MTPchannels_DeleteHistory(
-				MTP_flags(flags),
 				channel->inputChannel,
 				MTP_int(deleteTillId)
 			)).done([=](const MTPBool &result) {
diff --git a/Telegram/SourceFiles/window/window_peer_menu.cpp b/Telegram/SourceFiles/window/window_peer_menu.cpp
index 95e891f7ab..4efeba6a16 100644
--- a/Telegram/SourceFiles/window/window_peer_menu.cpp
+++ b/Telegram/SourceFiles/window/window_peer_menu.cpp
@@ -583,16 +583,16 @@ void Filler::addChannelActions(not_null<ChannelData*> channel) {
 		}
 	}
 	if (channel->amIn()) {
+		auto text = isGroup
+			? tr::lng_profile_leave_group(tr::now)
+			: tr::lng_profile_leave_channel(tr::now);
+		_addAction(text, DeleteAndLeaveHandler(channel));
 		if ((isGroup && !channel->isPublic())
 			|| channel->canDeleteMessages()) {
 			_addAction(
 				tr::lng_profile_clear_history(tr::now),
 				ClearHistoryHandler(channel));
 		}
-		auto text = isGroup
-			? tr::lng_profile_leave_group(tr::now)
-			: tr::lng_profile_leave_channel(tr::now);
-		_addAction(text, DeleteAndLeaveHandler(channel));
 	} else {
 		auto text = isGroup
 			? tr::lng_profile_join_group(tr::now)