112 lines
3.9 KiB
C++
112 lines
3.9 KiB
C++
#pragma once
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#include <optional>
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#include <QAbstractListModel>
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#include "QObjectPtr.h"
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#include "BaseInstance.h"
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#include "modplatform/ResourceAPI.h"
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#include "tasks/ConcurrentTask.h"
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class NetJob;
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class ResourceAPI;
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namespace ModPlatform {
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struct IndexedPack;
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}
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namespace ResourceDownload {
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class ResourceModel : public QAbstractListModel {
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Q_OBJECT
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Q_PROPERTY(QString search_term MEMBER m_search_term WRITE setSearchTerm)
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public:
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ResourceModel(BaseInstance const&, ResourceAPI* api);
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~ResourceModel() override;
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[[nodiscard]] auto data(const QModelIndex&, int role) const -> QVariant override;
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[[nodiscard]] auto roleNames() const -> QHash<int, QByteArray> override;
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bool setData(const QModelIndex& index, const QVariant& value, int role) override;
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[[nodiscard]] virtual auto debugName() const -> QString;
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[[nodiscard]] virtual auto metaEntryBase() const -> QString = 0;
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[[nodiscard]] inline int rowCount(const QModelIndex& parent) const override { return parent.isValid() ? 0 : m_packs.size(); }
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[[nodiscard]] inline int columnCount(const QModelIndex& parent) const override { return parent.isValid() ? 0 : 1; }
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[[nodiscard]] inline auto flags(const QModelIndex& index) const -> Qt::ItemFlags override { return QAbstractListModel::flags(index); }
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inline void addActiveJob(Task::Ptr ptr) { m_current_job.addTask(ptr); if (!m_current_job.isRunning()) m_current_job.start(); }
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inline Task const& activeJob() { return m_current_job; }
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public slots:
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void fetchMore(const QModelIndex& parent) override;
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// NOTE: Can't use [[nodiscard]] here because of https://bugreports.qt.io/browse/QTBUG-58628 on Qt 5.12
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inline bool canFetchMore(const QModelIndex& parent) const override
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{
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return parent.isValid() ? false : m_search_state == SearchState::CanFetchMore;
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}
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void setSearchTerm(QString term) { m_search_term = term; }
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virtual ResourceAPI::SearchArgs createSearchArguments() = 0;
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virtual ResourceAPI::SearchCallbacks createSearchCallbacks() = 0;
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virtual ResourceAPI::VersionSearchArgs createVersionsArguments(QModelIndex&) = 0;
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virtual ResourceAPI::VersionSearchCallbacks createVersionsCallbacks(QModelIndex&) = 0;
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virtual ResourceAPI::ProjectInfoArgs createInfoArguments(QModelIndex&) = 0;
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virtual ResourceAPI::ProjectInfoCallbacks createInfoCallbacks(QModelIndex&) = 0;
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/** Requests the API for more entries. */
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virtual void search();
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/** Applies any processing / extra requests needed to fully load the specified entry's information. */
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virtual void loadEntry(QModelIndex&);
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/** Schedule a refresh, clearing the current state. */
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void refresh();
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/** Gets the icon at the URL for the given index. If it's not fetched yet, fetch it and update when fisinhed. */
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std::optional<QIcon> getIcon(QModelIndex&, const QUrl&);
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protected:
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/** Resets the model's data. */
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void clearData();
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protected:
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const BaseInstance& m_base_instance;
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/* Basic search parameters */
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enum class SearchState { None, CanFetchMore, ResetRequested, Finished } m_search_state = SearchState::None;
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int m_next_search_offset = 0;
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QString m_search_term;
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std::unique_ptr<ResourceAPI> m_api;
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ConcurrentTask m_current_job;
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shared_qobject_ptr<NetJob> m_current_icon_job;
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QSet<QUrl> m_currently_running_icon_actions;
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QSet<QUrl> m_failed_icon_actions;
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QList<ModPlatform::IndexedPack> m_packs;
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// HACK: We need this to prevent callbacks from calling the model after it has already been deleted.
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// This leaks a tiny bit of memory per time the user has opened a resource dialog. How to make this better?
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static QHash<ResourceModel*, bool> s_running_models;
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private:
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/* Default search request callbacks */
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void searchRequestFailed(QString reason, int network_error_code);
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void searchRequestAborted();
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signals:
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void versionListUpdated();
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void projectInfoUpdated();
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};
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} // namespace ResourceDownload
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