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Telegram/SourceFiles/overview/overview_layout_delegate.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
+
+class StickerPremiumMark;
+
+namespace Overview::Layout {
+
+class ItemBase;
+
+class Delegate {
+public:
+	virtual void registerHeavyItem(not_null<const ItemBase*> item) = 0;
+	virtual void unregisterHeavyItem(not_null<const ItemBase*> item) = 0;
+	virtual void repaintItem(not_null<const ItemBase*> item) = 0;
+	virtual bool itemVisible(not_null<const ItemBase*> item) = 0;
+
+	[[nodiscard]] virtual not_null<StickerPremiumMark*> hiddenMark() = 0;
+
+	virtual void openPhoto(not_null<PhotoData*> photo, FullMsgId id) = 0;
+	virtual void openDocument(
+		not_null<DocumentData*> document,
+		FullMsgId id,
+		bool showInMediaView = false) = 0;
+
+};
+
+} // namespace Overview::Layout