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Telegram/SourceFiles/dialogs/dialogs_pinned_list.h

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+class History;
+
+namespace Data {
+class SavedMessages;
+class Session;
+class Forum;
+} // namespace Data
+
+namespace Dialogs {
+
+class Key;
+
+class PinnedList final {
+public:
+	PinnedList(FilterId filterId, int limit);
+
+	void setLimit(int limit);
+
+	// Places on the last place in the list otherwise.
+	// Does nothing if already pinned.
+	void addPinned(Key key);
+
+	// if (pinned) places on the first place in the list.
+	void setPinned(Key key, bool pinned);
+
+	void clear();
+
+	void applyList(
+		not_null<Data::Session*> owner,
+		const QVector<MTPDialogPeer> &list);
+	void applyList(
+		not_null<Data::SavedMessages*> sublistsOwner,
+		const QVector<MTPDialogPeer> &list);
+	void applyList(
+		not_null<Data::Forum*> forum,
+		const QVector<MTPint> &list);
+	void applyList(const std::vector<not_null<History*>> &list);
+	void reorder(Key key1, Key key2);
+
+	const std::vector<Key> &order() const {
+		return _data;
+	}
+
+private:
+	int addPinnedGetPosition(Key key);
+	void applyLimit(int limit);
+
+	FilterId _filterId = 0;
+	int _limit = 0;
+	std::vector<Key> _data;
+
+};
+
+} // namespace Dialogs