1671e05d12
This adds previews for downloaded pdfs and code files.  
137 lines
3.6 KiB
C++
137 lines
3.6 KiB
C++
// SPDX-FileCopyrightText: 2015 Klaralvdalens Datakonsult AB
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// SPDX-FileCopyrightText: 2016 The Qt Company Ltd.
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// SPDX-FileCopyrightText: 2021 Noah Davis <noahadvs@gmail.com>
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// SPDX-License-Identifier: LicenseRef-KDE-Accepted-LGPL
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#pragma once
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#include <QFileInfo>
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#include <QMimeDatabase>
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#include <QObject>
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#include <QQmlEngine>
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#include <qqml.h>
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class FileTypePrivate;
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/**
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* @class FileTypeSingleton
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*
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* Provide a singleton to expose the functionality of QMimeDatabase.
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*
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* @sa QMimeDatabase
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*/
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class FileType : public QObject
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{
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Q_OBJECT
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QML_ELEMENT
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QML_SINGLETON
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/**
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* @brief List of supported image formats.
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*
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* Returns a list of file extensions, not MIME types.
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*/
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Q_PROPERTY(QStringList supportedImageFormats READ supportedImageFormats CONSTANT FINAL)
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/**
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* @brief List of supported animated image formats.
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*
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* Returns a list of file extensions, not MIME types.
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*/
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Q_PROPERTY(QStringList supportedAnimatedImageFormats READ supportedAnimatedImageFormats CONSTANT FINAL)
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public:
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~FileType();
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static FileType &instance();
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static FileType *create(QQmlEngine *engine, QJSEngine *)
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{
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engine->setObjectOwnership(&instance(), QQmlEngine::CppOwnership);
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return &instance();
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}
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/**
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* @brief Returns a MIME type for nameOrAlias or an invalid one if none found.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForName(const QString &nameOrAlias) const;
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enum MatchMode { MatchDefault, MatchExtension, MatchContent };
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Q_ENUM(MatchMode)
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/**
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* @brief Returns a MIME type for the file named fileName using mode.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForFile(const QString &fileName, FileType::MatchMode mode = MatchDefault) const;
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/**
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* @brief Returns a MIME type for fileInfo.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForFile(const QFileInfo &fileInfo, FileType::MatchMode mode = MatchDefault) const;
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/**
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* @brief Returns the MIME types for the file name fileName.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QList<QMimeType> mimeTypesForFileName(const QString &fileName) const;
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/**
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* @brief Returns a MIME type for data.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForData(const QByteArray &data) const;
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/**
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* @brief Returns a MIME type for the data in device.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForData(QIODevice *device) const;
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/**
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* @brief Returns a MIME type for url.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForUrl(const QUrl &url) const;
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/**
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* @brief Returns a MIME type for the given fileName and device data.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForFileNameAndData(const QString &fileName, QIODevice *device) const;
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/**
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* @brief Returns a MIME type for the given fileName and device data.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QMimeType mimeTypeForFileNameAndData(const QString &fileName, const QByteArray &data) const;
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/**
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* @brief Returns the suffix for the file fileName, as known by the MIME database.
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*
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* @sa QMimeDatabase
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*/
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Q_INVOKABLE QString suffixForFileName(const QString &fileName) const;
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QStringList supportedImageFormats() const;
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QStringList supportedAnimatedImageFormats() const;
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bool fileHasImage(const QUrl &file) const;
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private:
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explicit FileType(QObject *parent = nullptr);
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const QScopedPointer<FileTypePrivate> d_ptr;
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Q_DECLARE_PRIVATE(FileType)
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Q_DISABLE_COPY(FileType)
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};
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