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42 lines
859 B
C++
42 lines
859 B
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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namespace Editor {
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enum class Undo {
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Undo,
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Redo,
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};
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class UndoController final {
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public:
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struct EnableRequest {
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Undo command = Undo::Undo;
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bool enable = true;
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};
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UndoController();
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void setCanPerformChanges(rpl::producer<EnableRequest> &&command);
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void setPerformRequestChanges(rpl::producer<Undo> &&command);
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[[nodiscard]] rpl::producer<EnableRequest> canPerformChanges() const;
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[[nodiscard]] rpl::producer<Undo> performRequestChanges() const;
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private:
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rpl::event_stream<Undo> _perform;
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rpl::event_stream<EnableRequest> _enable;
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rpl::lifetime _lifetime;
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};
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} // namespace Editor
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