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Telegram/SourceFiles/window/window_history_hider.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
+
+#include "ui/rp_widget.h"
+#include "ui/effects/animations.h"
+
+namespace Data {
+class Thread;
+} // namespace Data
+
+namespace Ui {
+class RoundButton;
+} // namespace Ui
+
+namespace Window {
+
+class HistoryHider final : public Ui::RpWidget {
+public:
+	HistoryHider(QWidget *parent, const QString &text);
+	~HistoryHider();
+
+	void startHide();
+	[[nodiscard]] rpl::producer<> hidden() const;
+
+protected:
+	void paintEvent(QPaintEvent *e) override;
+	void keyPressEvent(QKeyEvent *e) override;
+	void mousePressEvent(QMouseEvent *e) override;
+	void resizeEvent(QResizeEvent *e) override;
+
+private:
+	void refreshLang();
+	void updateControlsGeometry();
+	void animationCallback();
+
+	QString _text;
+	Ui::Animations::Simple _a_opacity;
+
+	QRect _box;
+	bool _hiding = false;
+
+	int _chooseWidth = 0;
+
+	rpl::event_stream<> _hidden;
+
+};
+
+} // namespace Window