X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/cd2d8cab43a2efa22da936ceca187cf3d5090de5..148282e2d856b47ceb191eeef4c834118c8cdffd:/src/metadatawidget.cpp

diff --git a/src/metadatawidget.cpp b/src/metadatawidget.cpp
index b95d6dead..218a6d1ce 100644
--- a/src/metadatawidget.cpp
+++ b/src/metadatawidget.cpp
@@ -19,31 +19,38 @@
 
 #include "metadatawidget.h"
 
-#include <config-kmetadata.h>
+#include "commentwidget.h"
+
+#include <config-nepomuk.h>
 
 #include <klocale.h>
+#include <KDebug>
+#include <KMessageBox>
 
+#include <QtCore/QEvent>
+#include <QtCore/QMutex>
+#include <QtCore/QMutexLocker>
+#include <QtCore/QThread>
 #include <QtGui/QLabel>
 #include <QtGui/QGridLayout>
 #include <QtGui/QTextEdit>
 
-#ifdef HAVE_KMETADATA
-#include <kmetadata/kmetadatatagwidget.h>
-#include <kmetadata/resourcemanager.h>
-#include <kmetadata/resource.h>
-#include <kmetadata/variant.h>
-#include <kmetadata/kratingwidget.h>
+#ifdef HAVE_NEPOMUK
+#include "nepomukmassupdatejob.h"
+#include <nepomuk/kmetadatatagwidget.h>
+#include <nepomuk/resourcemanager.h>
+#include <nepomuk/resource.h>
+#include <nepomuk/variant.h>
+#include <nepomuk/kratingwidget.h>
+#include <Soprano/Vocabulary/Xesam>
+#include "tagcloud/resourcetaggingwidget.h"
 #endif
 
-// FIXME: these should be replaced by using KMetaData::File once it is available again
-static const char* s_nfoFile = "http://ont.semanticdesktop.org/2007/03/22/nfo#File";
-static const char* s_nfoFileUrl = "http://ont.semanticdesktop.org/2007/03/22/nfo#fileUrl";
-
 
 bool MetaDataWidget::metaDataAvailable()
 {
-#ifdef HAVE_KMETADATA
-    return !Nepomuk::KMetaData::ResourceManager::instance()->init();
+#ifdef HAVE_NEPOMUK
+    return !Nepomuk::ResourceManager::instance()->init();
 #else
     return false;
 #endif
@@ -53,59 +60,130 @@ bool MetaDataWidget::metaDataAvailable()
 class MetaDataWidget::Private
 {
 public:
-#ifdef HAVE_KMETADATA
+#ifdef HAVE_NEPOMUK
     void loadComment(const QString& comment);
 
-    QMap<KUrl, Nepomuk::KMetaData::Resource> files;
-
-    QTextEdit* editComment;
+    CommentWidget* editComment;
     KRatingWidget* ratingWidget;
-    Nepomuk::KMetaData::TagWidget* tagWidget;
+    Nepomuk::ResourceTaggingWidget* tagWidget;
+    
+    // shared data between the GUI-thread and
+    // the loader-thread (see LoadFilesThread):
+    QMutex mutex;
+    struct SharedData
+    {
+        int rating;
+        QString comment;
+        QList<Nepomuk::Resource> fileRes;
+        QMap<KUrl, Nepomuk::Resource> files;
+    } sharedData;
+    
+    /**
+     * Loads the meta data of files and writes
+     * the result into a shared data pool that
+     * can be used by the widgets in the GUI thread.
+     */
+    class LoadFilesThread : public QThread
+    {
+    public:
+        LoadFilesThread(SharedData* sharedData, QMutex* mutex);
+        void setFiles(const KUrl::List& urls);
+        virtual void run();
+        
+    private:
+        SharedData* m_sharedData;
+        QMutex* m_mutex;
+        KUrl::List m_urls;
+    };
+    
+    LoadFilesThread* loadFilesThread;
 #endif
 };
 
-#ifdef HAVE_KMETADATA
+#ifdef HAVE_NEPOMUK
 void MetaDataWidget::Private::loadComment(const QString& comment)
 {
-    editComment->blockSignals(true);
-    if (comment.isEmpty()) {
-        editComment->setFontItalic(true);
-        editComment->setText(i18n("Click to add comment..."));
-    } else {
-        editComment->setFontItalic(false);
-        editComment->setText(comment);
+    editComment->setComment( comment );
+}
+
+MetaDataWidget::Private::LoadFilesThread::LoadFilesThread(
+    MetaDataWidget::Private::SharedData* sharedData,
+    QMutex* mutex) :
+    m_sharedData(sharedData),
+    m_mutex(mutex),
+    m_urls()
+{
+}
+
+void MetaDataWidget::Private::LoadFilesThread::setFiles(const KUrl::List& urls)
+{
+    QMutexLocker locker( m_mutex );
+    m_urls = urls;
+}
+
+void MetaDataWidget::Private::LoadFilesThread::run()
+{
+    QMutexLocker locker( m_mutex );
+    const KUrl::List urls = m_urls;
+    locker.unlock();
+    
+    bool first = true;
+    QList<Nepomuk::Resource> fileRes;
+    QMap<KUrl, Nepomuk::Resource> files;
+    unsigned int rating = 0;
+    QString comment;
+    Q_FOREACH( const KUrl &url, urls ) {
+        Nepomuk::Resource file( url, Soprano::Vocabulary::Xesam::File() );
+        files.insert( url, file );
+        fileRes.append( file );
+
+        if ( !first && rating != file.rating() ) {
+            rating = 0; // reset rating
+        }
+        else if ( first ) {
+            rating = file.rating();
+        }
+
+        if ( !first && comment != file.description() ) {
+            comment.clear();
+        }
+        else if ( first ) {
+            comment = file.description();
+        }
+        first = false;
     }
-    editComment->blockSignals(false);
+    
+    locker.relock();
+    m_sharedData->rating = rating;
+    m_sharedData->comment = comment;
+    m_sharedData->fileRes = fileRes;
+    m_sharedData->files = files;
 }
 #endif
 
-
 MetaDataWidget::MetaDataWidget(QWidget* parent) :
     QWidget(parent)
 {
-#ifdef HAVE_KMETADATA
+#ifdef HAVE_NEPOMUK
     d = new Private;
-    d->editComment = new QTextEdit(this);
+    d->editComment = new CommentWidget(this);
+    d->editComment->setFocusPolicy(Qt::ClickFocus);
     d->ratingWidget = new KRatingWidget(this);
-    d->tagWidget = new Nepomuk::KMetaData::TagWidget(this);
+    d->ratingWidget->setAlignment( Qt::AlignCenter );
+    d->tagWidget = new Nepomuk::ResourceTaggingWidget(this);
     connect(d->ratingWidget, SIGNAL(ratingChanged(unsigned int)), this, SLOT(slotRatingChanged(unsigned int)));
-    connect(d->editComment, SIGNAL(textChanged()), this, SLOT(slotCommentChanged()));
+    connect(d->editComment, SIGNAL(commentChanged(const QString&)), this, SLOT(slotCommentChanged(const QString&)));
+    connect( d->tagWidget, SIGNAL( tagClicked( const Nepomuk::Tag& ) ), this, SLOT( slotTagClicked( const Nepomuk::Tag& ) ) );
+    
+    d->sharedData.rating = 0;
+    d->loadFilesThread = new Private::LoadFilesThread(&d->sharedData, &d->mutex);
+    connect(d->loadFilesThread, SIGNAL(finished()), this, SLOT(slotLoadingFinished()));
 
     QVBoxLayout* lay = new QVBoxLayout(this);
     lay->setMargin(0);
-    QHBoxLayout* hbox = new QHBoxLayout;
-    hbox->addWidget(new QLabel(i18n("Rating:"), this));
-    hbox->addStretch(1);
-    hbox->addWidget(d->ratingWidget);
-    lay->addLayout(hbox);
+    lay->addWidget(d->ratingWidget);
     lay->addWidget(d->editComment);
-    hbox = new QHBoxLayout;
-    hbox->addWidget(new QLabel(i18n("Tags:"), this));
-    hbox->addWidget(d->tagWidget, 1);
-    lay->addLayout(hbox);
-
-    d->editComment->installEventFilter(this);
-    d->editComment->viewport()->installEventFilter(this);
+    lay->addWidget( d->tagWidget );
 #else
     d = 0;
 #endif
@@ -114,92 +192,90 @@ MetaDataWidget::MetaDataWidget(QWidget* parent) :
 
 MetaDataWidget::~MetaDataWidget()
 {
+#ifdef HAVE_NEPOMUK
+    delete d->loadFilesThread;
+#endif
     delete d;
 }
 
 
 void MetaDataWidget::setFile(const KUrl& url)
 {
+    kDebug() << url;
     KUrl::List urls;
     urls.append( url );
     setFiles( urls );
 }
 
-
 void MetaDataWidget::setFiles(const KUrl::List& urls)
 {
-#ifdef HAVE_KMETADATA
-    // FIXME: replace with KMetaData::File once we have it again
-    d->files.clear();
-    bool first = true;
-    QList<Nepomuk::KMetaData::Resource> fileRes;
-    Q_FOREACH( KUrl url, urls ) {
-        Nepomuk::KMetaData::Resource file( url.url(), s_nfoFile );
-//    file.setLocation(url.url());
-        d->files.insert( url, file );
-        fileRes.append( file );
-
-       if ( !first &&
-            d->ratingWidget->rating() != file.rating() ) {
-           d->ratingWidget->setRating( 0 ); // reset rating
-       }
-       else if ( first ) {
-           d->ratingWidget->setRating( file.rating() );
-       }
-
-       if ( !first &&
-            d->editComment->toPlainText() != file.description() ) {
-           d->loadComment( QString() );
-       }
-       else if ( first ) {
-           d->loadComment( file.description() );
-       }
-       first = false;
-    }
-    d->tagWidget->setTaggedResources(fileRes);
+#ifdef HAVE_NEPOMUK
+    d->loadFilesThread->setFiles( urls );
+    d->loadFilesThread->start();
+#else
+    Q_UNUSED( urls );
 #endif
 }
 
 
-void MetaDataWidget::slotCommentChanged()
+void MetaDataWidget::slotCommentChanged( const QString& s )
 {
-#ifdef HAVE_KMETADATA
-    for ( QMap<KUrl, Nepomuk::KMetaData::Resource>::iterator it = d->files.begin();
-          it != d->files.end(); ++it ) {
-        it.value().setDescription(d->editComment->toPlainText());
-    }
+#ifdef HAVE_NEPOMUK
+    QMutexLocker locker( &d->mutex );
+    Nepomuk::MassUpdateJob* job = Nepomuk::MassUpdateJob::commentResources( d->sharedData.files.values(), s );
+    connect( job, SIGNAL( result( KJob* ) ),
+             this, SLOT( metadataUpdateDone() ) );
+    setEnabled( false ); // no updates during execution
+    job->start();
+#else
+    Q_UNUSED( s );
 #endif
 }
 
 
 void MetaDataWidget::slotRatingChanged(unsigned int rating)
 {
-#ifdef HAVE_KMETADATA
-    for ( QMap<KUrl, Nepomuk::KMetaData::Resource>::iterator it = d->files.begin();
-          it != d->files.end(); ++it ) {
-        it.value().setRating(rating);
-    }
+#ifdef HAVE_NEPOMUK
+    QMutexLocker locker( &d->mutex );
+    Nepomuk::MassUpdateJob* job = Nepomuk::MassUpdateJob::rateResources( d->sharedData.files.values(), rating );
+    connect( job, SIGNAL( result( KJob* ) ),
+             this, SLOT( metadataUpdateDone() ) );
+    setEnabled( false ); // no updates during execution
+    job->start();
+#else
+    Q_UNUSED( rating );
 #endif
 }
 
 
+void MetaDataWidget::metadataUpdateDone()
+{
+    setEnabled( true );
+}
+
+
 bool MetaDataWidget::eventFilter(QObject* obj, QEvent* event)
 {
-#ifdef HAVE_KMETADATA
-    if (obj == d->editComment->viewport() || obj == d->editComment) {
-        if (event->type() == QEvent::FocusOut) {
-            // make sure the info text is displayed again
-            d->loadComment(d->editComment->toPlainText());
-        } else if (event->type() == QEvent::FocusIn) {
-            d->editComment->setFontItalic(false);
-            if (!d->files.isEmpty() && d->files.begin().value().description().isEmpty()) {
-                d->editComment->setText(QString());
-            }
-        }
-    }
+    return QWidget::eventFilter(obj, event);
+}
+
+
+void MetaDataWidget::slotTagClicked( const Nepomuk::Tag& tag )
+{
+    Q_UNUSED( tag );
+#ifdef HAVE_NEPOMUK
+    d->tagWidget->showTagPopup( QCursor::pos() );
 #endif
+}
 
-    return QWidget::eventFilter(obj, event);
+void MetaDataWidget::slotLoadingFinished()
+{
+#ifdef HAVE_NEPOMUK
+    QMutexLocker locker( &d->mutex );
+    d->ratingWidget->setRating( d->sharedData.rating );
+    d->loadComment( d->sharedData.comment );
+    d->tagWidget->setResources( d->sharedData.fileRes );
+#endif
 }
 
 #include "metadatawidget.moc"