File indexing completed on 2025-01-12 12:26:24

 /*****************************************************************************
  * Copyright (C) 2009 by Peter Penz <peter.penz@gmx.at>                      *
  *                                                                           *
  * This library is free software; you can redistribute it and/or             *
  * modify it under the terms of the GNU Library General Public               *
  * License as published by the Free Software Foundation; either              *
  * version 2 of the License, or (at your option) any later version.          *
  *                                                                           *
  * This library is distributed in the hope that it will be useful,           *
  * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  * Library General Public License for more details.                          *
  *                                                                           *
  * You should have received a copy of the GNU Library General Public License *
  * along with this library; see the file COPYING.LIB.  If not, write to      *
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,      *
  * Boston, MA 02110-1301, USA.                                               *
  *****************************************************************************/
 
 #include "kfilemetadataconfigurationwidget.h"
 
 #include <kconfig.h>
 #include <kconfiggroup.h>
 #include <kfilemetainfo.h>
 #include <kfilemetainfoitem.h>
 #include "knfotranslator_p.h"
 #include <klocalizedstring.h>
 
 #include <config-kdelibs4support.h>
 #if ! KIO_NO_NEPOMUK
 #define DISABLE_NEPOMUK_LEGACY
 #include <resource.h>
 #include <resourcemanager.h>
 #include <property.h>
 #include <variant.h>
 
 #include "kfilemetadataprovider_p.h"
 #endif
 
 #include <QEvent>
 #include <QListWidget>
 #include <QVBoxLayout>
 
 class Q_DECL_HIDDEN KFileMetaDataConfigurationWidget::Private
 {
 public:
     Private(KFileMetaDataConfigurationWidget *parent);
     ~Private();
 
     void init();
     void loadMetaData();
     void addItem(const QUrl &uri);
 
     /**
      * Is invoked after the meta data model has finished the loading of
      * meta data. The meta data labels will be added to the configuration
      * list.
      */
     void slotLoadingFinished();
 
     int m_visibleDataTypes;
     KFileItemList m_fileItems;
 #if ! KIO_NO_NEPOMUK
     KFileMetaDataProvider *m_provider;
 #endif
     QListWidget *m_metaDataList;
 
 private:
     KFileMetaDataConfigurationWidget *const q;
 };
 
 KFileMetaDataConfigurationWidget::Private::Private(KFileMetaDataConfigurationWidget *parent) :
     m_visibleDataTypes(0),
     m_fileItems(),
 #if ! KIO_NO_NEPOMUK
     m_provider(0),
 #endif
     m_metaDataList(nullptr),
     q(parent)
 {
     m_metaDataList = new QListWidget(q);
     m_metaDataList->setSelectionMode(QAbstractItemView::NoSelection);
     m_metaDataList->setSortingEnabled(true);
 
     QVBoxLayout *layout = new QVBoxLayout(q);
     layout->addWidget(m_metaDataList);
 
 #if ! KIO_NO_NEPOMUK
     m_provider = new KFileMetaDataProvider(q);
 #endif
 }
 
 KFileMetaDataConfigurationWidget::Private::~Private()
 {
 }
 
 void KFileMetaDataConfigurationWidget::Private::loadMetaData()
 {
 #if ! KIO_NO_NEPOMUK
     m_provider->setItems(m_fileItems);
     connect(m_provider, SIGNAL(loadingFinished()),
             q, SLOT(slotLoadingFinished()));
 #endif
 }
 
 void KFileMetaDataConfigurationWidget::Private::addItem(const QUrl &uri)
 {
     // Meta information provided by Nepomuk that is already
     // available from KFileItem as "fixed item" (see above)
     // should not be shown as second entry.
     static const char *const hiddenProperties[] = {
         "http://www.semanticdesktop.org/ontologies/2007/01/19/nie#comment",         // = fixed item kfileitem#comment
         "http://www.semanticdesktop.org/ontologies/2007/01/19/nie#contentSize",     // = fixed item kfileitem#size
         "http://www.semanticdesktop.org/ontologies/2007/01/19/nie#lastModified",    // = fixed item kfileitem#modified
         "http://www.semanticdesktop.org/ontologies/2007/01/19/nie#plainTextContent" // hide this property always
         "http://www.semanticdesktop.org/ontologies/2007/01/19/nie#mimeType",        // = fixed item kfileitem#type
         "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#fileName",        // hide this property always
         "http://www.w3.org/1999/02/22-rdf-syntax-ns#type",                          // = fixed item kfileitem#type
         nullptr // mandatory last entry
     };
 
     int i = 0;
     const QString key = uri.toString();
     while (hiddenProperties[i] != nullptr) {
         if (key == QLatin1String(hiddenProperties[i])) {
             // the item is hidden
             return;
         }
         ++i;
     }
 
     // the item is not hidden, add it to the list
     KConfig config("kmetainformationrc", KConfig::NoGlobals);
     KConfigGroup settings = config.group("Show");
 
 #if ! KIO_NO_NEPOMUK
     const QString label = (m_provider == 0)
                           ? KNfoTranslator::instance().translation(uri)
                           : m_provider->label(uri);
 #else
     const QString label = KNfoTranslator::instance().translation(uri);
 #endif
 
     QListWidgetItem *item = new QListWidgetItem(label, m_metaDataList);
     item->setData(Qt::UserRole, key);
     const bool show = settings.readEntry(key, true);
     item->setCheckState(show ? Qt::Checked : Qt::Unchecked);
 }
 
 void KFileMetaDataConfigurationWidget::Private::slotLoadingFinished()
 {
 #if ! KIO_NO_NEPOMUK
     // Get all meta information labels that are available for
     // the currently shown file item and add them to the list.
     Q_ASSERT(m_provider != 0);
 
     const QHash<QUrl, Nepomuk::Variant> data = m_provider->data();
     QHash<QUrl, Nepomuk::Variant>::const_iterator it = data.constBegin();
     while (it != data.constEnd()) {
         addItem(it.key());
         ++it;
     }
 #endif
 }
 
 KFileMetaDataConfigurationWidget::KFileMetaDataConfigurationWidget(QWidget *parent) :
     QWidget(parent),
     d(new Private(this))
 {
 }
 
 KFileMetaDataConfigurationWidget::~KFileMetaDataConfigurationWidget()
 {
     delete d;
 }
 
 void KFileMetaDataConfigurationWidget::setItems(const KFileItemList &items)
 {
     d->m_fileItems = items;
 }
 
 KFileItemList KFileMetaDataConfigurationWidget::items() const
 {
     return d->m_fileItems;
 }
 
 void KFileMetaDataConfigurationWidget::save()
 {
     KConfig config("kmetainformationrc", KConfig::NoGlobals);
     KConfigGroup showGroup = config.group("Show");
 
     const int count = d->m_metaDataList->count();
     for (int i = 0; i < count; ++i) {
         QListWidgetItem *item = d->m_metaDataList->item(i);
         const bool show = (item->checkState() == Qt::Checked);
         const QString key = item->data(Qt::UserRole).toString();
         showGroup.writeEntry(key, show);
     }
 
     showGroup.sync();
 }
 
 bool KFileMetaDataConfigurationWidget::event(QEvent *event)
 {
     if (event->type() == QEvent::Polish) {
         // loadMetaData() must be invoked asynchronously, as the list
         // must finish it's initialization first
         QMetaObject::invokeMethod(this, "loadMetaData", Qt::QueuedConnection);
     }
     return QWidget::event(event);;
 }
 
 QSize KFileMetaDataConfigurationWidget::sizeHint() const
 {
     return d->m_metaDataList->sizeHint();
 }
 
 #include "moc_kfilemetadataconfigurationwidget.cpp"