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// SPDX-FileCopyrightText: 2022 Jonah Brüchert <jbb@kaidan.im>
//
// SPDX-License-Identifier: LGPL-2.1-or-later
#ifndef QXMPPFILESHARINGMANAGER_H
#define QXMPPFILESHARINGMANAGER_H
#include "QXmppClientExtension.h"
#include "QXmppFileShare.h"
#include "QXmppFileSharingProvider.h"
#include "QXmppGlobal.h"
#include <any>
#include <functional>
#include <memory>
#include <typeindex>
#include <variant>
#include <QFuture>
#include <QMimeType>
#include <QObject>
#include <QSize>
class QIODevice;
class QXmppFileMetadata;
class QXMPP_EXPORT QXmppFileSharingManager : public QXmppClientExtension
{
public:
struct MetadataThumbnail
{
uint32_t width;
uint32_t height;
QByteArray data;
QMimeType mimeType;
};
struct MetadataGeneratorResult
{
std::optional<QSize> dimensions;
std::optional<uint32_t> length;
QVector<MetadataThumbnail> thumbnails;
std::unique_ptr<QIODevice> dataDevice;
};
using MetadataGenerator = std::function<QFuture<std::shared_ptr<MetadataGeneratorResult>>(std::unique_ptr<QIODevice>)>;
QXmppFileSharingManager();
void setMetadataGenerator(MetadataGenerator &&generator);
///
/// \brief Register a provider for automatic downloads
/// \param manager A shared_ptr to a QXmppFileSharingProvider subclass
///
template<typename ProviderType>
void registerProivder(std::shared_ptr<ProviderType> manager)
{
std::type_index index(typeid(typename ProviderType::SourceType));
internalRegisterProvider(index, manager);
}
std::shared_ptr<QXmppUpload> sendFile(std::shared_ptr<QXmppFileSharingProvider> provider,
const QString &filePath,
const std::optional<QString> &description = {});
std::shared_ptr<QXmppDownload> downloadFile(const QXmppFileShare &fileShare,
std::unique_ptr<QIODevice> &&output);
private:
void internalRegisterProvider(std::type_index, std::shared_ptr<QXmppFileSharingProvider> provider);
MetadataGenerator m_metadataGenerator;
std::unordered_map<std::type_index, std::shared_ptr<QXmppFileSharingProvider>> m_providers;
};
#endif // QXMPPFILESHARINGMANAGER_H
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