src/panels/filter/filterpanel.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Sebastian Trueg <trueg@kde.org>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "filterpanel.h"
  21
  22 #include <nepomuk/filequery.h>
  23 #include <nepomuk/facetwidget.h>
  24 #include <nepomuk/facet.h>
  25 #include <Nepomuk/Query/FileQuery>
  26 #include <Nepomuk/Query/Term>
  27
  28 #include <kfileitem.h>
  29 #include <kio/jobclasses.h>
  30 #include <kio/job.h>
  31
  32 #include <QtGui/QVBoxLayout>
  33 #include <QtGui/QTreeView>
  34 #include <QtGui/QPushButton>
  35
  36 FilterPanel::FilterPanel(QWidget* parent) :
  37     Panel(parent)
  38 {
  39     QVBoxLayout* layout = new QVBoxLayout(this);
  40     m_removeFolderRestrictionButton = new QPushButton(i18n("Remove folder restriction"), this);
  41     connect(m_removeFolderRestrictionButton, SIGNAL(clicked()), SLOT(slotRemoveFolderRestrictionClicked()));
  42
  43     layout->addWidget(m_removeFolderRestrictionButton);
  44
  45     m_facetWidget = new Nepomuk::Utils::FacetWidget(this);
  46     layout->addWidget(m_facetWidget, 1);
  47     connect(m_facetWidget, SIGNAL(facetsChanged()), this, SLOT(slotFacetsChanged()));
  48
  49     /*m_facetWidget->addFacet(Nepomuk::Utils::Facet::createFileTypeFacet());
  50     m_facetWidget->addFacet(Nepomuk::Utils::Facet::createTypeFacet());
  51     m_facetWidget->addFacet(Nepomuk::Utils::Facet::createDateFacet());
  52     m_facetWidget->addFacet(Nepomuk::Utils::Facet::createPriorityFacet());
  53     m_facetWidget->addFacet(Nepomuk::Utils::Facet::createRatingFacet());*/
  54
  55     // Init to empty panel
  56     setQuery(Nepomuk::Query::Query());
  57 }
  58
  59 FilterPanel::~FilterPanel()
  60 {
  61 }
  62
  63 bool FilterPanel::urlChanged()
  64 {
  65     if (!isVisible()) {
  66         return true;
  67     }
  68
  69     // Disable us
  70     setQuery(Nepomuk::Query::Query());
  71
  72     // Get the query from the item
  73     m_lastSetUrlStatJob = KIO::stat(url(), KIO::HideProgressInfo);
  74     connect(m_lastSetUrlStatJob, SIGNAL(result(KJob*)),
  75             this, SLOT(slotSetUrlStatFinished(KJob*)));
  76
  77     return true;
  78 }
  79
  80 void FilterPanel::slotSetUrlStatFinished(KJob* job)
  81 {
  82     m_lastSetUrlStatJob = 0;
  83     const KIO::UDSEntry uds = static_cast<KIO::StatJob*>(job)->statResult();
  84     const QString nepomukQueryStr = uds.stringValue(KIO::UDSEntry::UDS_NEPOMUK_QUERY);
  85     Nepomuk::Query::FileQuery nepomukQuery;
  86     if (!nepomukQueryStr.isEmpty()) {
  87         nepomukQuery = Nepomuk::Query::Query::fromString(nepomukQueryStr);
  88     } else if (url().isLocalFile()) {
  89         // Fallback query for local file URLs
  90         nepomukQuery.addIncludeFolder(url(), false);
  91     }
  92     setQuery(nepomukQuery);
  93 }
  94
  95 void FilterPanel::slotFacetsChanged()
  96 {
  97     Nepomuk::Query::Query query(m_unfacetedRestQuery && m_facetWidget->queryTerm());
  98     emit urlActivated(query.toSearchUrl());
  99 }
 100
 101 void FilterPanel::slotRemoveFolderRestrictionClicked()
 102 {
 103     Nepomuk::Query::FileQuery query(m_unfacetedRestQuery && m_facetWidget->queryTerm());
 104     query.setIncludeFolders(KUrl::List());
 105     query.setExcludeFolders(KUrl::List());
 106     m_facetWidget->setClientQuery(query);
 107     emit urlActivated(query.toSearchUrl());
 108 }
 109
 110 void FilterPanel::setQuery(const Nepomuk::Query::Query& query)
 111 {
 112     if (query.isValid()) {
 113         m_removeFolderRestrictionButton->setVisible(query.isFileQuery() && !query.toFileQuery().includeFolders().isEmpty());
 114         m_unfacetedRestQuery = query;
 115         m_unfacetedRestQuery.setTerm(m_facetWidget->extractFacetsFromTerm(query.term()));
 116         m_facetWidget->setClientQuery(query);
 117         setEnabled(true);
 118     }
 119     else {
 120         m_unfacetedRestQuery = Nepomuk::Query::Query();
 121         setEnabled(false);
 122     }
 123 }