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Telegram/SourceFiles/info/statistics/info_statistics_inner_widget.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 "base/object_ptr.h"
+#include "info/statistics/info_statistics_common.h"
+#include "ui/widgets/scroll_area.h"
+#include "ui/wrap/vertical_layout.h"
+
+namespace Info {
+class Controller;
+} // namespace Info
+
+namespace Info::Statistics {
+
+class Memento;
+class MessagePreview;
+
+enum class LoadingType {
+	Statistic,
+	Boosts,
+	Earn,
+};
+
+void FillLoading(
+	not_null<Ui::VerticalLayout*> container,
+	LoadingType type,
+	rpl::producer<bool> toggleOn,
+	rpl::producer<> showFinished);
+
+class InnerWidget final : public Ui::VerticalLayout {
+public:
+	struct ShowRequest final {
+		PeerId info = PeerId(0);
+		FullMsgId history;
+		FullMsgId messageStatistic;
+		FullStoryId storyStatistic;
+		FullStoryId story;
+	};
+
+	InnerWidget(
+		QWidget *parent,
+		not_null<Controller*> controller,
+		not_null<PeerData*> peer,
+		FullMsgId contextId,
+		FullStoryId storyId);
+
+	[[nodiscard]] rpl::producer<Ui::ScrollToRequest> scrollToRequests() const;
+	[[nodiscard]] rpl::producer<ShowRequest> showRequests() const;
+
+	void showFinished();
+
+	void saveState(not_null<Memento*> memento);
+	void restoreState(not_null<Memento*> memento);
+
+private:
+	void load();
+	void fill();
+	void fillRecentPosts(not_null<Ui::VerticalLayout*> container);
+
+	not_null<Controller*> _controller;
+	not_null<PeerData*> _peer;
+	FullMsgId _contextId;
+	FullStoryId _storyId;
+
+	std::vector<not_null<MessagePreview*>> _messagePreviews;
+
+	SavedState _state;
+
+	rpl::event_stream<Ui::ScrollToRequest> _scrollToRequests;
+	rpl::event_stream<ShowRequest> _showRequests;
+	rpl::event_stream<> _showFinished;
+	rpl::event_stream<bool> _loaded;
+
+};
+
+} // namespace Info::Statistics