2023-06-05 16:31:15 +00:00
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/*
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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 "base/weak_ptr.h"
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#include "data/data_stories_ids.h"
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#include "info/media/info_media_common.h"
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class DocumentData;
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class HistoryItem;
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class PeerData;
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class History;
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2023-07-21 08:18:16 +00:00
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namespace Data {
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class Story;
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} // namespace Data
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2023-06-05 16:31:15 +00:00
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namespace Info {
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class AbstractController;
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} // namespace Info
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namespace Info::Stories {
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enum class Tab;
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class Provider final
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: public Media::ListProvider
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, private Media::ListSectionDelegate
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, public base::has_weak_ptr {
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public:
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explicit Provider(not_null<AbstractController*> controller);
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2023-07-05 15:52:22 +00:00
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~Provider();
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2023-06-05 16:31:15 +00:00
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Media::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<Media::BaseLayout*> topLayout,
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not_null<Media::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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void setSearchQuery(QString query) override;
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std::vector<Media::ListSection> fillSections(
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not_null<Overview::Layout::Delegate*> delegate) override;
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rpl::producer<not_null<Media::BaseLayout*>> layoutRemoved() override;
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Media::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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Media::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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Media::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(
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Media::ListScrollTopState state) override;
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void saveState(
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not_null<Media::Memento*> memento,
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Media::ListScrollTopState scrollState) override;
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void restoreState(
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not_null<Media::Memento*> memento,
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Fn<void(Media::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 = ServerMaxStoryId - 1;
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bool sectionHasFloatingHeader() override;
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QString sectionTitle(not_null<const Media::BaseLayout*> item) override;
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bool sectionItemBelongsHere(
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not_null<const Media::BaseLayout*> item,
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not_null<const Media::BaseLayout*> previous) override;
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2023-07-21 08:18:16 +00:00
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void storyRemoved(not_null<Data::Story*> story);
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2023-06-05 16:31:15 +00:00
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void markLayoutsStale();
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void clearStaleLayouts();
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2023-07-05 15:52:22 +00:00
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void clear();
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2023-06-05 16:31:15 +00:00
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[[nodiscard]] HistoryItem *ensureItem(StoryId id);
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[[nodiscard]] Media::BaseLayout *getLayout(
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StoryId id,
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not_null<Overview::Layout::Delegate*> delegate);
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[[nodiscard]] std::unique_ptr<Media::BaseLayout> createLayout(
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StoryId id,
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not_null<Overview::Layout::Delegate*> delegate);
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const not_null<AbstractController*> _controller;
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const not_null<PeerData*> _peer;
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const not_null<History*> _history;
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const Tab _tab;
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StoryId _aroundId = kDefaultAroundId;
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int _idsLimit = kMinimalIdsLimit;
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Data::StoriesIdsSlice _slice;
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base::flat_map<StoryId, std::shared_ptr<HistoryItem>> _items;
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std::unordered_map<StoryId, Media::CachedItem> _layouts;
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rpl::event_stream<not_null<Media::BaseLayout*>> _layoutRemoved;
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rpl::event_stream<> _refreshed;
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bool _started = false;
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rpl::lifetime _lifetime;
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rpl::lifetime _viewerLifetime;
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};
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} // namespace Info::Stories
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