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#pragma once
#include <QMap>
#include "sources/soundsourceprovider.h"
#include "util/optional.h"
namespace mixxx {
class SoundSourceProviderRegistration final {
public:
SoundSourceProviderRegistration(SoundSourceProviderRegistration&&) = default;
SoundSourceProviderRegistration(const SoundSourceProviderRegistration&) = default;
SoundSourceProviderRegistration& operator=(SoundSourceProviderRegistration&&) = default;
SoundSourceProviderRegistration& operator=(const SoundSourceProviderRegistration&) = default;
const SoundSourceProviderPointer& getProvider() const {
return m_pProvider;
}
SoundSourceProviderPriority getProviderPriority() const {
return m_providerPriority;
}
private:
friend class SoundSourceProviderRegistry;
SoundSourceProviderRegistration(
SoundSourceProviderPointer pProvider,
SoundSourceProviderPriority providerPriority)
: m_pProvider(std::move(pProvider)),
m_providerPriority(providerPriority) {
DEBUG_ASSERT(m_pProvider);
}
SoundSourceProviderPointer m_pProvider;
SoundSourceProviderPriority m_providerPriority;
};
/// Registry for SoundSourceProviders
class SoundSourceProviderRegistry {
public:
/// Register a provider for all supported file extensions
/// with their cooperative priority hint.
///
/// Returns the number of registered file extensions.
int registerProvider(
const SoundSourceProviderPointer& pProvider);
QStringList getRegisteredFileExtensions() const {
return m_registrationListsByFileExtension.keys();
}
/// Returns all registrations for the given file extension.
/// If no providers have been registered for this file extension
/// an empty list will be returned.
QList<SoundSourceProviderRegistration> getRegistrationsForFileExtension(
const QString& fileExtension) const;
/// Returns the primary provider registration for the given file
/// extensions if available.
std::optional<SoundSourceProviderRegistration> getPrimaryRegistrationForFileExtension(
const QString& fileExtension) const {
const auto registrations =
getRegistrationsForFileExtension(fileExtension);
if (registrations.isEmpty()) {
return std::nullopt;
} else {
return std::make_optional(registrations.first());
}
}
/// Returns the primary provider for the given file
/// extensions if available.
SoundSourceProviderPointer getPrimaryProviderForFileExtension(
const QString& fileExtension) const {
const auto optProviderRegistration =
getPrimaryRegistrationForFileExtension(fileExtension);
if (optProviderRegistration) {
return optProviderRegistration->getProvider();
} else {
return nullptr;
}
}
private:
typedef QMap<QString, QList<SoundSourceProviderRegistration>>
RegistrationListByFileExtensionMap;
RegistrationListByFileExtensionMap m_registrationListsByFileExtension;
typedef QMap<QString, SoundSourceProviderPointer> ProviderByDisplayNameMap;
ProviderByDisplayNameMap m_providersByDisplayName;
};
} // namespace mixxx
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