125 lines
3.8 KiB
C++
125 lines
3.8 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "info/media/info_media_common.h"
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#include "data/data_shared_media.h"
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namespace Info {
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class AbstractController;
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} // namespace Info
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namespace Info::Media {
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class Provider final : public ListProvider, private ListSectionDelegate {
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public:
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explicit Provider(not_null<AbstractController*> controller);
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Type type() override;
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bool hasSelectRestriction() override;
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rpl::producer<bool> hasSelectRestrictionChanges() override;
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bool isPossiblyMyItem(not_null<const HistoryItem*> item) override;
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std::optional<int> fullCount() override;
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void restart() override;
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void checkPreload(
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QSize viewport,
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not_null<BaseLayout*> topLayout,
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not_null<BaseLayout*> bottomLayout,
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bool preloadTop,
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bool preloadBottom) override;
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void refreshViewer() override;
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rpl::producer<> refreshed() override;
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std::vector<ListSection> fillSections(
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not_null<Overview::Layout::Delegate*> delegate) override;
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rpl::producer<not_null<BaseLayout*>> layoutRemoved() override;
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BaseLayout *lookupLayout(const HistoryItem *item) override;
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bool isMyItem(not_null<const HistoryItem*> item) override;
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bool isAfter(
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not_null<const HistoryItem*> a,
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not_null<const HistoryItem*> b) override;
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void setSearchQuery(QString query) override;
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ListItemSelectionData computeSelectionData(
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not_null<const HistoryItem*> item,
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TextSelection selection) override;
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void applyDragSelection(
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ListSelectedMap &selected,
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not_null<const HistoryItem*> fromItem,
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bool skipFrom,
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not_null<const HistoryItem*> tillItem,
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bool skipTill) override;
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bool allowSaveFileAs(
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not_null<const HistoryItem*> item,
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not_null<DocumentData*> document) override;
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QString showInFolderPath(
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not_null<const HistoryItem*> item,
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not_null<DocumentData*> document) override;
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int64 scrollTopStatePosition(not_null<HistoryItem*> item) override;
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HistoryItem *scrollTopStateItem(ListScrollTopState state) override;
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void saveState(
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not_null<Memento*> memento,
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ListScrollTopState scrollState) override;
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void restoreState(
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not_null<Memento*> memento,
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Fn<void(ListScrollTopState)> restoreScrollState) override;
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private:
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static constexpr auto kMinimalIdsLimit = 16;
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static constexpr auto kDefaultAroundId = (ServerMaxMsgId - 1);
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bool sectionHasFloatingHeader() override;
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QString sectionTitle(not_null<const BaseLayout*> item) override;
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bool sectionItemBelongsHere(
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not_null<const BaseLayout*> item,
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not_null<const BaseLayout*> previous) override;
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[[nodiscard]] bool isPossiblyMyPeerId(PeerId peerId) const;
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[[nodiscard]] FullMsgId computeFullId(UniversalMsgId universalId) const;
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[[nodiscard]] BaseLayout *getLayout(
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UniversalMsgId universalId,
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not_null<Overview::Layout::Delegate*> delegate);
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[[nodiscard]] std::unique_ptr<BaseLayout> createLayout(
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UniversalMsgId universalId,
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not_null<Overview::Layout::Delegate*> delegate,
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Type type);
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[[nodiscard]] SparseIdsMergedSlice::Key sliceKey(
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UniversalMsgId universalId) const;
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void itemRemoved(not_null<const HistoryItem*> item);
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void markLayoutsStale();
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void clearStaleLayouts();
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const not_null<AbstractController*> _controller;
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const not_null<PeerData*> _peer;
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const MsgId _topicRootId = 0;
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PeerData * const _migrated = nullptr;
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const Type _type = Type::Photo;
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UniversalMsgId _universalAroundId = kDefaultAroundId;
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int _idsLimit = kMinimalIdsLimit;
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SparseIdsMergedSlice _slice;
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std::unordered_map<UniversalMsgId, CachedItem> _layouts;
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rpl::event_stream<not_null<BaseLayout*>> _layoutRemoved;
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rpl::event_stream<> _refreshed;
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rpl::lifetime _lifetime;
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rpl::lifetime _viewerLifetime;
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};
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} // namespace Info::Media
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