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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
namespace Editor {
enum class Undo {
Undo,
Redo,
};
class UndoController final {
public:
struct EnableRequest {
Undo command = Undo::Undo;
bool enable = true;
};
UndoController();
void setCanPerformChanges(rpl::producer<EnableRequest> &&command);
void setPerformRequestChanges(rpl::producer<Undo> &&command);
[[nodiscard]] rpl::producer<EnableRequest> canPerformChanges() const;
[[nodiscard]] rpl::producer<Undo> performRequestChanges() const;
private:
rpl::event_stream<Undo> _perform;
rpl::event_stream<EnableRequest> _enable;
rpl::lifetime _lifetime;
};
} // namespace Editor
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