New layout of service messages (complex shape of a bubble).

Telegram/SourceFiles/data/data_abstract_structure.cpp

@@ -0,0 +1,50 @@
+/*
+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) 2014-2016 John Preston, https://desktop.telegram.org
+*/
+#include "stdafx.h"
+#include "data/data_abstract_structure.h"
+
+namespace Data {
+namespace {
+
+using DataStructures = OrderedSet<AbstractStructure**>;
+NeverFreedPointer<DataStructures> structures;
+
+} // namespace
+
+namespace internal {
+
+void registerAbstractStructure(AbstractStructure **p) {
+	structures.makeIfNull();
+	structures->insert(p);
+}
+
+} // namespace internal
+
+void clearGlobalStructures() {
+	if (!structures) return;
+	for (auto &p : *structures) {
+		delete (*p);
+		*p = nullptr;
+	}
+	structures.clear();
+}
+
+} // namespace Data