Copied GIF Layout from inline bots results to overview.

Telegram/SourceFiles/overview/overview_layout.h

@@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #pragma once
 
 #include "layout.h"
+#include "media/clip/media_clip_reader.h"
 #include "core/click_handler_types.h"
 #include "ui/effects/animations.h"
 #include "ui/effects/radial_animation.h"
@@ -202,6 +203,63 @@ private:
 
 };
 
+class Gif final : public RadialProgressItem {
+public:
+	Gif(
+		not_null<Delegate*> delegate,
+		not_null<HistoryItem*> parent,
+		not_null<DocumentData*> gif);
+	~Gif();
+
+	void initDimensions() override;
+	int32 resizeGetHeight(int32 width) override;
+	void paint(
+		Painter &p,
+		const QRect &clip,
+		TextSelection selection,
+		const PaintContext *context) override;
+	TextState getState(
+		QPoint point,
+		StateRequest request) const override;
+
+	void clearHeavyPart() override;
+
+protected:
+	float64 dataProgress() const override;
+	bool dataFinished() const override;
+	bool dataLoaded() const override;
+	bool iconAnimated() const override;
+
+private:
+	QSize countFrameSize() const;
+	int contentWidth() const;
+	int contentHeight() const;
+
+	void validateThumbnail(
+		Image *image,
+		QSize size,
+		QSize frame,
+		bool good);
+	void prepareThumbnail(QSize size, QSize frame);
+
+	void update();
+
+	void ensureDataMediaCreated() const;
+	void updateStatusText();
+
+	void clipCallback(Media::Clip::Notification notification);
+
+	Media::Clip::ReaderPointer _gif;
+
+	const not_null<DocumentData*> _data;
+	mutable std::shared_ptr<Data::DocumentMedia> _dataMedia;
+	StatusText _status;
+
+	QPixmap _thumb;
+	bool _thumbGood = false;
+
+};
+
 class Video final : public RadialProgressItem {
 public:
 	Video(