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Telegram/SourceFiles/info/peer_gifts/info_peer_gifts_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 "data/data_star_gift.h"
+#include "info/info_content_widget.h"
+
+class UserData;
+struct PeerListState;
+
+namespace Ui {
+class RpWidget;
+template <typename Widget>
+class SlideWrap;
+} // namespace Ui
+
+namespace Info::PeerGifts {
+
+struct ListState {
+	std::vector<Data::SavedStarGift> list;
+	QString offset;
+};
+
+struct Filter {
+	bool sortByValue : 1 = false;
+	bool skipUnlimited : 1 = false;
+	bool skipLimited : 1 = false;
+	bool skipUpgradable : 1 = false;
+	bool skipUnique : 1 = false;
+	bool skipSaved : 1 = false;
+	bool skipUnsaved : 1 = false;
+
+	[[nodiscard]] bool skipsSomething() const {
+		return skipLimited
+			|| skipUnlimited
+			|| skipSaved
+			|| skipUnsaved
+			|| skipUpgradable
+			|| skipUnique;
+	}
+
+	friend inline bool operator==(Filter, Filter) = default;
+};
+
+struct Descriptor {
+	Filter filter;
+	int collectionId = 0;
+
+	friend inline bool operator==(
+		const Descriptor &,
+		const Descriptor &) = default;
+};
+
+class InnerWidget;
+
+class Memento final : public ContentMemento {
+public:
+	Memento(not_null<Controller*> controller);
+	Memento(not_null<PeerData*> peer, int collectionId);
+	~Memento();
+
+	object_ptr<ContentWidget> createWidget(
+		QWidget *parent,
+		not_null<Controller*> controller,
+		const QRect &geometry) override;
+
+	Section section() const override;
+
+	void setListState(std::unique_ptr<ListState> state);
+	std::unique_ptr<ListState> listState();
+
+private:
+	std::unique_ptr<ListState> _listState;
+
+};
+
+class Widget final : public ContentWidget {
+public:
+	Widget(QWidget *parent, not_null<Controller*> controller);
+
+	[[nodiscard]] not_null<PeerData*> peer() const;
+
+	bool showInternal(
+		not_null<ContentMemento*> memento) override;
+
+	void setInternalState(
+		const QRect &geometry,
+		not_null<Memento*> memento);
+
+	void fillTopBarMenu(const Ui::Menu::MenuCallback &addAction) override;
+
+	rpl::producer<QString> title() override;
+
+	rpl::producer<bool> desiredBottomShadowVisibility() override;
+
+	void showFinished() override;
+
+private:
+	void saveState(not_null<Memento*> memento);
+	void restoreState(not_null<Memento*> memento);
+
+	std::shared_ptr<ContentMemento> doCreateMemento() override;
+
+	void setupNotifyCheckbox(int wasBottomHeight, bool enabled);
+	void setupBottomButton(int wasBottomHeight);
+	void refreshBottom();
+
+	InnerWidget *_inner = nullptr;
+	QPointer<Ui::SlideWrap<Ui::RpWidget>> _pinnedToBottom;
+	rpl::variable<bool> _hasPinnedToBottom;
+	rpl::variable<bool> _emptyCollectionShown;
+	rpl::variable<Descriptor> _descriptor;
+	std::optional<bool> _notifyEnabled;
+	bool _shown = false;
+
+};
+
+[[nodiscard]] std::shared_ptr<Info::Memento> Make(
+	not_null<PeerData*> peer,
+	int collectionId = 0);
+
+} // namespace Info::PeerGifts