Apply channel admin edition changes.

Telegram/SourceFiles/data/data_channel_admins.cpp

@@ -0,0 +1,48 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#include "data/data_channel_admins.h"
+
+namespace Data {
+
+ChannelAdminChanges::ChannelAdminChanges(not_null<ChannelData*> channel)
+: _channel(channel)
+, _admins(_channel->mgInfo->admins) {
+}
+
+void ChannelAdminChanges::feed(UserId userId, bool isAdmin) {
+	if (isAdmin && !_admins.contains(userId)) {
+		_admins.insert(userId);
+		_changes.emplace(userId, true);
+	} else if (!isAdmin && _admins.contains(userId)) {
+		_admins.remove(userId);
+		_changes.emplace(userId, false);
+	}
+}
+
+ChannelAdminChanges::~ChannelAdminChanges() {
+	if (!_changes.empty()) {
+		if (auto history = App::historyLoaded(_channel)) {
+			history->applyGroupAdminChanges(_changes);
+		}
+	}
+}
+
+} // namespace Data