File indexing completed on 2024-04-21 03:55:07

 /*
     This file is part of the KDE project
     SPDX-FileCopyrightText: 2008 Peter Penz <peter.penz@gmx.at>
     SPDX-FileCopyrightText: 2008 George Goldberg <grundleborg@googlemail.com>
     SPDX-FileCopyrightText: 2009 David Faure <faure@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 
 #include "kfileitemlistproperties.h"
 
 #include <kfileitem.h>
 #include <kprotocolmanager.h>
 
 #include <QFileInfo>
 
 class KFileItemListPropertiesPrivate : public QSharedData
 {
 public:
     KFileItemListPropertiesPrivate()
         : m_isDirectory(false)
         , m_isFile(false)
         , m_supportsReading(false)
         , m_supportsDeleting(false)
         , m_supportsWriting(false)
         , m_supportsMoving(false)
         , m_isLocal(true)
     {
     }
     void setItems(const KFileItemList &items);
 
     void determineMimeTypeAndGroup() const;
 
     KFileItemList m_items;
     mutable QString m_mimeType;
     mutable QString m_mimeGroup;
     bool m_isDirectory : 1;
     bool m_isFile : 1;
     bool m_supportsReading : 1;
     bool m_supportsDeleting : 1;
     bool m_supportsWriting : 1;
     bool m_supportsMoving : 1;
     bool m_isLocal : 1;
 };
 
 KFileItemListProperties::KFileItemListProperties()
     : d(new KFileItemListPropertiesPrivate)
 {
 }
 
 KFileItemListProperties::KFileItemListProperties(const KFileItemList &items)
     : d(new KFileItemListPropertiesPrivate)
 {
     setItems(items);
 }
 
 void KFileItemListProperties::setItems(const KFileItemList &items)
 {
     d->setItems(items);
 }
 
 void KFileItemListPropertiesPrivate::setItems(const KFileItemList &items)
 {
     const bool initialValue = !items.isEmpty();
     m_items = items;
     m_supportsReading = initialValue;
     m_supportsDeleting = initialValue;
     m_supportsWriting = initialValue;
     m_supportsMoving = initialValue;
     m_isDirectory = initialValue;
     m_isFile = initialValue;
     m_isLocal = true;
     m_mimeType.clear();
     m_mimeGroup.clear();
 
     QFileInfo parentDirInfo;
     for (const KFileItem &item : items) {
         const QUrl url = item.url();
         const auto [localUrl, isLocal] = item.isMostLocalUrl();
         m_isLocal = m_isLocal && isLocal;
         m_supportsReading = m_supportsReading && KProtocolManager::supportsReading(url);
         m_supportsDeleting = m_supportsDeleting && KProtocolManager::supportsDeleting(url);
         m_supportsWriting = m_supportsWriting && KProtocolManager::supportsWriting(url) && item.isWritable();
         m_supportsMoving = m_supportsMoving && KProtocolManager::supportsMoving(url);
 
         // For local files we can do better: check if we have write permission in parent directory
         // TODO: if we knew about the parent KFileItem, we could even do that for remote protocols too
 #ifndef Q_OS_WIN
         if (m_isLocal && (m_supportsDeleting || m_supportsMoving)) {
             const QString directory = localUrl.adjusted(QUrl::RemoveFilename | QUrl::StripTrailingSlash).toLocalFile();
             if (parentDirInfo.filePath() != directory) {
                 parentDirInfo.setFile(directory);
             }
             if (!parentDirInfo.isWritable()) {
                 m_supportsDeleting = false;
                 m_supportsMoving = false;
             }
         }
 #else
         if (m_isLocal && m_supportsDeleting) {
             if (!QFileInfo(url.toLocalFile()).isWritable())
                 m_supportsDeleting = false;
         }
 #endif
         if (m_isDirectory && !item.isDir()) {
             m_isDirectory = false;
         }
 
         if (m_isFile && !item.isFile()) {
             m_isFile = false;
         }
     }
 }
 
 KFileItemListProperties::KFileItemListProperties(const KFileItemListProperties &other)
     : d(other.d)
 {
 }
 
 KFileItemListProperties &KFileItemListProperties::operator=(const KFileItemListProperties &other)
 {
     d = other.d;
     return *this;
 }
 
 KFileItemListProperties::~KFileItemListProperties()
 {
 }
 
 bool KFileItemListProperties::supportsReading() const
 {
     return d->m_supportsReading;
 }
 
 bool KFileItemListProperties::supportsDeleting() const
 {
     return d->m_supportsDeleting;
 }
 
 bool KFileItemListProperties::supportsWriting() const
 {
     return d->m_supportsWriting;
 }
 
 bool KFileItemListProperties::supportsMoving() const
 {
     return d->m_supportsMoving && d->m_supportsDeleting;
 }
 
 bool KFileItemListProperties::isLocal() const
 {
     return d->m_isLocal;
 }
 
 KFileItemList KFileItemListProperties::items() const
 {
     return d->m_items;
 }
 
 QList<QUrl> KFileItemListProperties::urlList() const
 {
     return d->m_items.targetUrlList();
 }
 
 bool KFileItemListProperties::isDirectory() const
 {
     return d->m_isDirectory;
 }
 
 bool KFileItemListProperties::isFile() const
 {
     return d->m_isFile;
 }
 
 QString KFileItemListProperties::mimeType() const
 {
     if (d->m_mimeType.isEmpty()) {
         d->determineMimeTypeAndGroup();
     }
     return d->m_mimeType;
 }
 
 QString KFileItemListProperties::mimeGroup() const
 {
     if (d->m_mimeType.isEmpty()) {
         d->determineMimeTypeAndGroup();
     }
     return d->m_mimeGroup;
 }
 
 void KFileItemListPropertiesPrivate::determineMimeTypeAndGroup() const
 {
     if (!m_items.isEmpty()) {
         m_mimeType = m_items.first().mimetype();
         m_mimeGroup = m_mimeType.left(m_mimeType.indexOf(QLatin1Char('/')));
     }
     for (const KFileItem &item : std::as_const(m_items)) {
         const QString itemMimeType = item.mimetype();
         // Determine if common MIME type among all items
         if (m_mimeType != itemMimeType) {
             m_mimeType.clear();
             const auto type = QStringView(itemMimeType).left(itemMimeType.indexOf(QLatin1Char('/')));
             if (m_mimeGroup != type) {
                 m_mimeGroup.clear(); // MIME type groups are different as well!
             }
         }
     }
 }