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Telegram/SourceFiles/editor/controllers/undo_controller.cpp

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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
+*/
+#include "editor/controllers/undo_controller.h"
+
+namespace Editor {
+namespace {
+using EnableRequest = UndoController::EnableRequest;
+} // namespace
+
+UndoController::UndoController() {
+}
+
+void UndoController::setCanPerformChanges(
+		rpl::producer<EnableRequest> &&command) {
+	std::move(
+		command
+	) | rpl::start_to_stream(_enable, _lifetime);
+}
+
+void UndoController::setPerformRequestChanges(rpl::producer<Undo> &&command) {
+	std::move(
+		command
+	) | rpl::start_to_stream(_perform, _lifetime);
+}
+
+rpl::producer<EnableRequest> UndoController::canPerformChanges() const {
+	return _enable.events();
+}
+
+rpl::producer<Undo> UndoController::performRequestChanges() const {
+	return _perform.events();
+}
+
+} // namespace Editor