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/***************************************************************************
* Copyright (C) 2010 by Sebastian Trueg <[email protected]> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#include "searchpanel.h"
#include "dolphin_searchsettings.h"
#include <Nepomuk/ResourceManager>
#include <Nepomuk/Utils/FacetWidget>
#include <Nepomuk/Utils/Facet>
#include <Nepomuk/Utils/SimpleFacet>
#include <Nepomuk/Utils/ProxyFacet>
#include <Nepomuk/Utils/DynamicResourceFacet>
#include <Nepomuk/Query/FileQuery>
#include <Nepomuk/Query/ResourceTypeTerm>
#include <Nepomuk/Query/LiteralTerm>
#include <Nepomuk/Query/ComparisonTerm>
#include <Nepomuk/Vocabulary/NFO>
#include <Nepomuk/Vocabulary/NMM>
#include <Nepomuk/Vocabulary/NIE>
#include <search/dolphinsearchinformation.h>
#include <KFileItem>
#include <KIO/JobClasses>
#include <KIO/Job>
#include <KMenu>
#include <QPushButton>
#include <QShowEvent>
#include <QTreeView>
#include <QVBoxLayout>
SearchPanel::SearchPanel(QWidget* parent) :
Panel(parent),
m_initialized(false),
m_lastSetUrlStatJob(0),
m_startedFromDir(),
m_facetWidget(0),
m_unfacetedRestQuery()
{
setEnabled(false);
}
SearchPanel::~SearchPanel()
{
}
bool SearchPanel::urlChanged()
{
if (!url().protocol().startsWith(QLatin1String("nepomuk"))) {
// Remember the current directory before a searching is started.
// This is required to restore the directory in case that all facets
// have been reset by the user (see slotQueryTermChanged()).
m_startedFromDir = url();
}
if (isVisible() && DolphinSearchInformation::instance().isIndexingEnabled()) {
setQuery(Nepomuk::Query::Query());
delete m_lastSetUrlStatJob;
m_lastSetUrlStatJob = KIO::stat(url(), KIO::HideProgressInfo);
connect(m_lastSetUrlStatJob, SIGNAL(result(KJob*)),
this, SLOT(slotSetUrlStatFinished(KJob*)));
}
return true;
}
void SearchPanel::showEvent(QShowEvent* event)
{
if (event->spontaneous()) {
Panel::showEvent(event);
return;
}
if (!m_initialized) {
QVBoxLayout* layout = new QVBoxLayout(this);
layout->setMargin(0);
Q_ASSERT(!m_facetWidget);
m_facetWidget = new Nepomuk::Utils::FacetWidget(this);
layout->addWidget(m_facetWidget, 1);
// File Type
m_facetWidget->addFacet(Nepomuk::Utils::Facet::createFileTypeFacet());
// Image Size
Nepomuk::Utils::ProxyFacet* imageSizeProxy = new Nepomuk::Utils::ProxyFacet();
imageSizeProxy->setFacetCondition(Nepomuk::Query::ResourceTypeTerm(Nepomuk::Vocabulary::NFO::Image()));
Nepomuk::Utils::SimpleFacet* imageSizeFacet = new Nepomuk::Utils::SimpleFacet(imageSizeProxy);
imageSizeFacet->setSelectionMode(Nepomuk::Utils::Facet::MatchAny);
imageSizeFacet->addTerm( i18nc("option:check Refers to a filter on image size", "Small"),
Nepomuk::Vocabulary::NFO::width() <= Nepomuk::Query::LiteralTerm(300));
imageSizeFacet->addTerm( i18nc("option:check Refers to a filter on image size", "Medium"),
(Nepomuk::Vocabulary::NFO::width() > Nepomuk::Query::LiteralTerm(300)) &&
(Nepomuk::Vocabulary::NFO::width() <= Nepomuk::Query::LiteralTerm(800)));
imageSizeFacet->addTerm( i18nc("option:check Refers to a filter on image size", "Large"),
Nepomuk::Vocabulary::NFO::width() > Nepomuk::Query::LiteralTerm(800));
imageSizeProxy->setSourceFacet(imageSizeFacet);
m_facetWidget->addFacet(imageSizeProxy);
// Artists
Nepomuk::Utils::ProxyFacet* artistProxy = new Nepomuk::Utils::ProxyFacet();
artistProxy->setFacetCondition(Nepomuk::Query::ResourceTypeTerm(Nepomuk::Vocabulary::NFO::Audio()) ||
Nepomuk::Query::ComparisonTerm(Nepomuk::Vocabulary::NIE::mimeType(),
Nepomuk::Query::LiteralTerm(QLatin1String("audio"))));
Nepomuk::Utils::DynamicResourceFacet* artistFacet = new Nepomuk::Utils::DynamicResourceFacet(artistProxy);
artistFacet->setSelectionMode(Nepomuk::Utils::Facet::MatchAny);
artistFacet->setRelation(Nepomuk::Vocabulary::NMM::performer());
artistProxy->setSourceFacet(artistFacet);
m_facetWidget->addFacet(artistProxy);
// Misc
m_facetWidget->addFacet(Nepomuk::Utils::Facet::createDateFacet());
m_facetWidget->addFacet(Nepomuk::Utils::Facet::createRatingFacet());
m_facetWidget->addFacet(Nepomuk::Utils::Facet::createTagFacet());
Q_ASSERT(!m_lastSetUrlStatJob);
m_lastSetUrlStatJob = KIO::stat(url(), KIO::HideProgressInfo);
connect(m_lastSetUrlStatJob, SIGNAL(result(KJob*)),
this, SLOT(slotSetUrlStatFinished(KJob*)));
connect(m_facetWidget, SIGNAL(queryTermChanged(Nepomuk::Query::Term)),
this, SLOT(slotQueryTermChanged(Nepomuk::Query::Term)));
m_initialized = true;
}
const DolphinSearchInformation& searchInfo = DolphinSearchInformation::instance();
setEnabled(searchInfo.isIndexingEnabled() &&
searchInfo.isPathIndexed(m_startedFromDir));
Panel::showEvent(event);
}
void SearchPanel::hideEvent(QHideEvent* event)
{
if (!event->spontaneous()) {
setEnabled(false);
}
Panel::hideEvent(event);
}
void SearchPanel::contextMenuEvent(QContextMenuEvent* event)
{
Panel::contextMenuEvent(event);
QWeakPointer<KMenu> popup = new KMenu(this);
foreach (QAction* action, customContextMenuActions()) {
popup.data()->addAction(action);
}
popup.data()->exec(QCursor::pos());
delete popup.data();
}
void SearchPanel::slotSetUrlStatFinished(KJob* job)
{
m_lastSetUrlStatJob = 0;
const KIO::UDSEntry uds = static_cast<KIO::StatJob*>(job)->statResult();
const QString nepomukQueryStr = uds.stringValue(KIO::UDSEntry::UDS_NEPOMUK_QUERY);
Nepomuk::Query::FileQuery nepomukQuery;
if (!nepomukQueryStr.isEmpty()) {
nepomukQuery = Nepomuk::Query::Query::fromString(nepomukQueryStr);
} else if (url().isLocalFile()) {
// Fallback query for local file URLs: List all files
Nepomuk::Query::ComparisonTerm compTerm(
Nepomuk::Vocabulary::NFO::fileName(),
Nepomuk::Query::Term());
nepomukQuery.setFileMode(Nepomuk::Query::FileQuery::QueryFiles);
if (SearchSettings::location() == QLatin1String("FromHere")) {
nepomukQuery.addIncludeFolder(url(), true);
}
nepomukQuery.setTerm(compTerm);
}
setQuery(nepomukQuery);
}
void SearchPanel::slotQueryTermChanged(const Nepomuk::Query::Term& term)
{
if (term.isValid()) {
// Default case: A facet has been changed by the user to restrict the query.
Nepomuk::Query::FileQuery query(m_unfacetedRestQuery && term);
emit urlActivated(query.toSearchUrl());
return;
}
// All facets have been reset by the user to be unrestricted.
// Verify whether the unfaceted rest query contains any additional restriction
// (e.g. a filename in the search field). If no further restriction is given, exit
// the search mode by returning to the directory where the searching has been
// started from.
const Nepomuk::Query::Term rootTerm = m_unfacetedRestQuery.term();
if (rootTerm.type() == Nepomuk::Query::Term::Comparison) {
const Nepomuk::Query::ComparisonTerm& compTerm = static_cast<const Nepomuk::Query::ComparisonTerm&>(rootTerm);
if (compTerm.subTerm().isValid()) {
Nepomuk::Query::FileQuery query(m_unfacetedRestQuery);
emit urlActivated(query.toSearchUrl());
return;
}
}
emit urlActivated(m_startedFromDir);
}
void SearchPanel::setQuery(const Nepomuk::Query::Query& query)
{
if (query.isValid()) {
const bool block = m_facetWidget->blockSignals(true);
m_unfacetedRestQuery = m_facetWidget->extractFacetsFromQuery(query);
m_facetWidget->setClientQuery(query);
const DolphinSearchInformation& searchInfo = DolphinSearchInformation::instance();
setEnabled(searchInfo.isIndexingEnabled() &&
searchInfo.isPathIndexed(m_startedFromDir));
m_facetWidget->blockSignals(block);
} else {
m_unfacetedRestQuery = Nepomuk::Query::Query();
setEnabled(false);
}
}
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