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Telegram/lib_ui/ui/wrap/follow_slide_wrap.h

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+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#pragma once
+
+#include "ui/effects/animations.h"
+#include "ui/wrap/wrap.h"
+
+namespace Ui {
+
+template <typename Widget = RpWidget>
+class FollowSlideWrap;
+
+template <>
+class FollowSlideWrap<RpWidget> : public Wrap<RpWidget> {
+	using Parent = Wrap<RpWidget>;
+
+public:
+	FollowSlideWrap(
+		QWidget *parent,
+		object_ptr<RpWidget> &&child);
+
+	FollowSlideWrap *setDuration(crl::time duration);
+
+protected:
+	void wrappedSizeUpdated(QSize size) override;
+	void wrappedNaturalWidthUpdated(int width) override;
+
+private:
+	void updateWrappedPosition(int forHeight);
+
+	Animations::Simple _animation;
+	crl::time _duration = 0;
+
+};
+
+template <typename Widget>
+class FollowSlideWrap : public Wrap<Widget, FollowSlideWrap<RpWidget>> {
+	using Parent = Wrap<Widget, FollowSlideWrap<RpWidget>>;
+
+public:
+	FollowSlideWrap(
+		QWidget *parent,
+		object_ptr<Widget> &&child)
+	: Parent(parent, std::move(child)) {
+	}
+
+};
+
+} // namespace Ui
+