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[dolphin.git] / src / search / dolphinsearchbox.cpp
diff --git a/src/search/dolphinsearchbox.cpp b/src/search/dolphinsearchbox.cpp
index 32f66adb40eee403a4e155fcdd0cf385da2400df..ee425501d876628c044895933b1cecfdf5f9114b 100644 (file)
--- a/src/search/dolphinsearchbox.cpp
+++ b/src/search/dolphinsearchbox.cpp
@@ -1,68 +1,57 @@
-/***************************************************************************
-*    Copyright (C) 2010 by Peter Penz <peter.penz19@gmail.com>            *
-*                                                                         *
-*    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           *
-* **************************************************************************/
+/*
+ * SPDX-FileCopyrightText: 2010 Peter Penz <peter.penz19@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 
 #include "dolphinsearchbox.h"
 
 #include "dolphinsearchbox.h"
+#include "global.h"
 
 #include "dolphin_searchsettings.h"
 
 #include "dolphin_searchsettings.h"
-
-#include <kicon.h>
-#include <klineedit.h>
-#include <klocale.h>
-#include <kseparator.h>
+#include "dolphinfacetswidget.h"
+#include "dolphinplacesmodelsingleton.h"
+#include "dolphinquery.h"
+
+#include "config-dolphin.h"
+#include <KIO/ApplicationLauncherJob>
+#include <KLocalizedString>
+#include <KSeparator>
+#include <KService>
+#if HAVE_BALOO
+#include <Baloo/IndexerConfig>
+#include <Baloo/Query>
+#endif
 
 #include <QButtonGroup>
 #include <QDir>
 
 #include <QButtonGroup>
 #include <QDir>
-#include <QEvent>
-#include <QFormLayout>
+#include <QFontDatabase>
 #include <QHBoxLayout>
 #include <QHBoxLayout>
+#include <QIcon>
 #include <QKeyEvent>
 #include <QKeyEvent>
-#include <QLabel>
-#include <QPushButton>
+#include <QLineEdit>
+#include <QScrollArea>
+#include <QShowEvent>
 #include <QTimer>
 #include <QToolButton>
 #include <QTimer>
 #include <QToolButton>
-#include <QVBoxLayout>
-
-#include <config-nepomuk.h>
-#ifdef HAVE_NEPOMUK
-    #include <nepomuk/andterm.h>
-    #include <nepomuk/filequery.h>
-    #include <nepomuk/literalterm.h>
-    #include <nepomuk/query.h>
-    #include <nepomuk/queryparser.h>
-    #include <nepomuk/resourcemanager.h>
-    #include <nepomuk/resourcetypeterm.h>
-    #include <nepomuk/comparisonterm.h>
-    #include <nepomuk/nfo.h>
-#endif
-
-DolphinSearchBox::DolphinSearchBox(QWidget* parent) :
-    QWidget(parent),
-    m_startedSearching(false),
-    m_nepomukActivated(false),
-    m_topLayout(0),
-    m_searchInput(0),
-    m_fromHereButton(0),
-    m_everywhereButton(0),
-    m_fileNameButton(0),
-    m_contentButton(0),
-    m_searchPath(),
-    m_startSearchTimer(0)
+#include <QUrlQuery>
+
+DolphinSearchBox::DolphinSearchBox(QWidget *parent)
+    : AnimatedHeightWidget(parent)
+    , m_startedSearching(false)
+    , m_active(true)
+    , m_topLayout(nullptr)
+    , m_searchInput(nullptr)
+    , m_saveSearchAction(nullptr)
+    , m_optionsScrollArea(nullptr)
+    , m_fileNameButton(nullptr)
+    , m_contentButton(nullptr)
+    , m_separator(nullptr)
+    , m_fromHereButton(nullptr)
+    , m_everywhereButton(nullptr)
+    , m_facetsWidget(nullptr)
+    , m_searchPath()
+    , m_startSearchTimer(nullptr)
+    , m_initialized(false)
 {
 }
 
 {
 }
 
@@ -71,118 +60,255 @@ DolphinSearchBox::~DolphinSearchBox()
     saveSettings();
 }
 
     saveSettings();
 }
 
+void DolphinSearchBox::setText(const QString &text)
+{
+    if (m_searchInput->text() != text) {
+        m_searchInput->setText(text);
+    }
+}
+
 QString DolphinSearchBox::text() const
 {
     return m_searchInput->text();
 }
 
 QString DolphinSearchBox::text() const
 {
     return m_searchInput->text();
 }
 
-void DolphinSearchBox::setSearchPath(const KUrl& url)
+void DolphinSearchBox::setSearchPath(const QUrl &url)
 {
 {
+    if (url == m_searchPath || !m_initialized) {
+        return;
+    }
+
+    const QUrl cleanedUrl = url.adjusted(QUrl::RemoveUserInfo | QUrl::StripTrailingSlash);
+
+    if (cleanedUrl.path() == QDir::homePath()) {
+        m_fromHereButton->setChecked(false);
+        m_everywhereButton->setChecked(true);
+        if (!m_searchPath.isEmpty()) {
+            return;
+        }
+    } else {
+        m_everywhereButton->setChecked(false);
+        m_fromHereButton->setChecked(true);
+    }
+
     m_searchPath = url;
 
     QFontMetrics metrics(m_fromHereButton->font());
     m_searchPath = url;
 
     QFontMetrics metrics(m_fromHereButton->font());
-    const int maxWidth = metrics.averageCharWidth() * 15;
-    const QString fileName = metrics.elidedText(url.fileName(), Qt::ElideMiddle, maxWidth);
-    m_fromHereButton->setText(i18nc("action:button", "From Here (%1)", fileName));
+    const int maxWidth = metrics.height() * 8;
+
+    QString location = cleanedUrl.fileName();
+    if (location.isEmpty()) {
+        location = cleanedUrl.toString(QUrl::PreferLocalFile);
+    }
+    const QString elidedLocation = metrics.elidedText(location, Qt::ElideMiddle, maxWidth);
+    m_fromHereButton->setText(i18nc("action:button", "From Here (%1)", elidedLocation));
+    m_fromHereButton->setToolTip(i18nc("action:button", "Limit search to '%1' and its subfolders", cleanedUrl.toString(QUrl::PreferLocalFile)));
 }
 
 }
 
-KUrl DolphinSearchBox::searchPath() const
+QUrl DolphinSearchBox::searchPath() const
 {
 {
-    return m_searchPath;
+    return m_everywhereButton->isChecked() ? QUrl::fromLocalFile(QDir::homePath()) : m_searchPath;
 }
 
 }
 
-KUrl DolphinSearchBox::urlForSearching() const
+QUrl DolphinSearchBox::urlForSearching() const
 {
 {
-    KUrl url;
-    if (m_nepomukActivated && isSearchPathIndexed()) {
-        url = nepomukUrlForSearching();
+    QUrl url;
+
+    if (isIndexingEnabled()) {
+        url = balooUrlForSearching();
     } else {
     } else {
-        url = m_searchPath;
-        url.setProtocol("filenamesearch");
-        url.addQueryItem("search", m_searchInput->text());
+        url.setScheme(QStringLiteral("filenamesearch"));
+
+        QUrlQuery query;
+        query.addQueryItem(QStringLiteral("search"), QUrl::toPercentEncoding(m_searchInput->text()));
         if (m_contentButton->isChecked()) {
         if (m_contentButton->isChecked()) {
-            url.addQueryItem("checkContent", "yes");
-        }
-        if (m_everywhereButton->isChecked()) {
-            // It is very unlikely, that the majority of Dolphins target users
-            // mean "the whole harddisk" instead of "my home folder" when
-            // selecting the "Everywhere" button.
-            url.setPath(QDir::homePath());
+            query.addQueryItem(QStringLiteral("checkContent"), QStringLiteral("yes"));
         }
         }
+
+        query.addQueryItem(QStringLiteral("url"), QUrl::toPercentEncoding(searchPath().url()));
+        query.addQueryItem(QStringLiteral("title"), QUrl::toPercentEncoding(queryTitle(m_searchInput->text())));
+
+        url.setQuery(query);
     }
 
     return url;
 }
 
     }
 
     return url;
 }
 
-bool DolphinSearchBox::event(QEvent* event)
+void DolphinSearchBox::fromSearchUrl(const QUrl &url)
+{
+    if (DolphinQuery::supportsScheme(url.scheme())) {
+        const DolphinQuery query = DolphinQuery::fromSearchUrl(url);
+        updateFromQuery(query);
+    } else if (url.scheme() == QLatin1String("filenamesearch")) {
+        const QUrlQuery query(url);
+        setText(query.queryItemValue(QStringLiteral("search"), QUrl::FullyDecoded));
+        if (m_searchPath.scheme() != url.scheme()) {
+            m_searchPath = QUrl();
+        }
+        setSearchPath(QUrl::fromUserInput(query.queryItemValue(QStringLiteral("url"), QUrl::FullyDecoded), QString(), QUrl::AssumeLocalFile));
+        m_contentButton->setChecked(query.queryItemValue(QStringLiteral("checkContent")) == QLatin1String("yes"));
+    } else {
+        setText(QString());
+        m_searchPath = QUrl();
+        setSearchPath(url);
+    }
+
+    updateFacetsVisible();
+}
+
+void DolphinSearchBox::selectAll()
 {
 {
-    if (event->type() == QEvent::Polish) {
+    m_searchInput->selectAll();
+}
+
+void DolphinSearchBox::setActive(bool active)
+{
+    if (active != m_active) {
+        m_active = active;
+
+        if (active) {
+            Q_EMIT activated();
+        }
+    }
+}
+
+bool DolphinSearchBox::isActive() const
+{
+    return m_active;
+}
+
+void DolphinSearchBox::setVisible(bool visible, Animated animated)
+{
+    if (visible) {
         init();
     }
         init();
     }
-    return QWidget::event(event);
+    AnimatedHeightWidget::setVisible(visible, animated);
 }
 
 }
 
-void DolphinSearchBox::showEvent(QShowEvent* event)
+void DolphinSearchBox::showEvent(QShowEvent *event)
 {
     if (!event->spontaneous()) {
 {
     if (!event->spontaneous()) {
-#ifdef HAVE_NEPOMUK
-        m_nepomukActivated = (Nepomuk::ResourceManager::instance()->init() == 0);
-#endif
-
-        m_searchInput->clear();
         m_searchInput->setFocus();
         m_startedSearching = false;
     }
 }
 
         m_searchInput->setFocus();
         m_startedSearching = false;
     }
 }
 
-void DolphinSearchBox::keyReleaseEvent(QKeyEvent* event)
+void DolphinSearchBox::hideEvent(QHideEvent *event)
+{
+    Q_UNUSED(event)
+    m_startedSearching = false;
+    if (m_startSearchTimer) {
+        m_startSearchTimer->stop();
+    }
+}
+
+void DolphinSearchBox::keyReleaseEvent(QKeyEvent *event)
 {
     QWidget::keyReleaseEvent(event);
 {
     QWidget::keyReleaseEvent(event);
-    if ((event->key() == Qt::Key_Escape)) {
+    if (event->key() == Qt::Key_Escape) {
         if (m_searchInput->text().isEmpty()) {
         if (m_searchInput->text().isEmpty()) {
-            emit closeRequest();
+            emitCloseRequest();
         } else {
             m_searchInput->clear();
         }
         } else {
             m_searchInput->clear();
         }
+    } else if (event->key() == Qt::Key_Down) {
+        Q_EMIT focusViewRequest();
     }
 }
 
     }
 }
 
-void DolphinSearchBox::emitSearchSignal()
+bool DolphinSearchBox::eventFilter(QObject *obj, QEvent *event)
+{
+    switch (event->type()) {
+    case QEvent::FocusIn:
+        // #379135: we get the FocusIn event when we close a tab but we don't want to emit
+        // the activated() signal before the removeTab() call in DolphinTabWidget::closeTab() returns.
+        // To avoid this issue, we delay the activation of the search box.
+        // We also don't want to schedule the activation process if we are already active,
+        // otherwise we can enter in a loop of FocusIn/FocusOut events with the searchbox of another tab.
+        if (!isActive()) {
+            QTimer::singleShot(0, this, [this] {
+                setActive(true);
+                setFocus();
+            });
+        }
+        break;
+
+    default:
+        break;
+    }
+
+    return QObject::eventFilter(obj, event);
+}
+
+void DolphinSearchBox::emitSearchRequest()
 {
     m_startSearchTimer->stop();
     m_startedSearching = true;
 {
     m_startSearchTimer->stop();
     m_startedSearching = true;
-    emit search(m_searchInput->text());
+    m_saveSearchAction->setEnabled(true);
+    Q_EMIT searchRequest();
+}
+
+void DolphinSearchBox::emitCloseRequest()
+{
+    m_startSearchTimer->stop();
+    m_startedSearching = false;
+    m_saveSearchAction->setEnabled(false);
+    Q_EMIT closeRequest();
 }
 
 void DolphinSearchBox::slotConfigurationChanged()
 {
 }
 
 void DolphinSearchBox::slotConfigurationChanged()
 {
+    saveSettings();
     if (m_startedSearching) {
     if (m_startedSearching) {
-        emitSearchSignal();
+        emitSearchRequest();
     }
 }
 
     }
 }
 
-void DolphinSearchBox::slotSearchTextChanged(const QString& text)
+void DolphinSearchBox::slotSearchTextChanged(const QString &text)
 {
     if (text.isEmpty()) {
 {
     if (text.isEmpty()) {
-        m_startSearchTimer->stop();
+        // Restore URL when search box is cleared by closing and reopening the box.
+        emitCloseRequest();
+        Q_EMIT openRequest();
     } else {
         m_startSearchTimer->start();
     }
     } else {
         m_startSearchTimer->start();
     }
-    emit searchTextChanged(text);
+    Q_EMIT searchTextChanged(text);
 }
 
 }
 
-void DolphinSearchBox::slotReturnPressed(const QString& text)
+void DolphinSearchBox::slotReturnPressed()
 {
 {
-    emitSearchSignal();
-    emit returnPressed(text);
+    if (m_searchInput->text().isEmpty()) {
+        return;
+    }
+
+    emitSearchRequest();
+    Q_EMIT focusViewRequest();
+}
+
+void DolphinSearchBox::slotFacetChanged()
+{
+    m_startedSearching = true;
+    m_startSearchTimer->stop();
+    Q_EMIT searchRequest();
 }
 
 }
 
-void DolphinSearchBox::initButton(QPushButton* button)
+void DolphinSearchBox::slotSearchSaved()
 {
 {
+    const QUrl searchURL = urlForSearching();
+    if (searchURL.isValid()) {
+        const QString label = i18n("Search for %1 in %2", text(), searchPath().fileName());
+        DolphinPlacesModelSingleton::instance().placesModel()->addPlace(label, searchURL, QStringLiteral("folder-saved-search-symbolic"));
+    }
+}
+
+void DolphinSearchBox::initButton(QToolButton *button)
+{
+    button->installEventFilter(this);
     button->setAutoExclusive(true);
     button->setAutoExclusive(true);
-    button->setFlat(true);
+    button->setAutoRaise(true);
     button->setCheckable(true);
     button->setCheckable(true);
-    connect(button, SIGNAL(toggled(bool)), this, SLOT(slotConfigurationChanged()));
+    connect(button, &QToolButton::clicked, this, &DolphinSearchBox::slotConfigurationChanged);
 }
 
 void DolphinSearchBox::loadSettings()
 }
 
 void DolphinSearchBox::loadSettings()
@@ -198,164 +324,252 @@ void DolphinSearchBox::loadSettings()
     } else {
         m_fileNameButton->setChecked(true);
     }
     } else {
         m_fileNameButton->setChecked(true);
     }
+
+    updateFacetsVisible();
 }
 
 void DolphinSearchBox::saveSettings()
 {
 }
 
 void DolphinSearchBox::saveSettings()
 {
-    SearchSettings::setLocation(m_fromHereButton->isChecked() ? "FromHere" : "Everywhere");
-    SearchSettings::setWhat(m_fileNameButton->isChecked() ? "FileName" : "Content");
-    SearchSettings::self()->writeConfig();
+    if (m_initialized) {
+        SearchSettings::setLocation(m_fromHereButton->isChecked() ? QStringLiteral("FromHere") : QStringLiteral("Everywhere"));
+        SearchSettings::setWhat(m_fileNameButton->isChecked() ? QStringLiteral("FileName") : QStringLiteral("Content"));
+        SearchSettings::self()->save();
+    }
 }
 
 void DolphinSearchBox::init()
 {
 }
 
 void DolphinSearchBox::init()
 {
-    // Create close button
-    QToolButton* closeButton = new QToolButton(this);
-    closeButton->setAutoRaise(true);
-    closeButton->setIcon(KIcon("dialog-close"));
-    closeButton->setToolTip(i18nc("@info:tooltip", "Quit searching"));
-    connect(closeButton, SIGNAL(clicked()), SIGNAL(closeRequest()));
+    if (m_initialized) {
+        return; // This object is already initialised.
+    }
 
 
-    // Create search label
-    QLabel* searchLabel = new QLabel(i18nc("@label:textbox", "Find:"), this);
+    QWidget *contentsContainer = prepareContentsContainer();
 
     // Create search box
 
     // Create search box
-    m_searchInput = new KLineEdit(this);
-    m_searchInput->setClearButtonShown(true);
-    m_searchInput->setFont(KGlobalSettings::generalFont());
-    connect(m_searchInput, SIGNAL(returnPressed(QString)),
-            this, SLOT(slotReturnPressed(QString)));
-    connect(m_searchInput, SIGNAL(textChanged(QString)),
-            this, SLOT(slotSearchTextChanged(QString)));
+    m_searchInput = new QLineEdit(contentsContainer);
+    m_searchInput->setPlaceholderText(i18n("Search…"));
+    m_searchInput->installEventFilter(this);
+    m_searchInput->setClearButtonEnabled(true);
+    m_searchInput->setFont(QFontDatabase::systemFont(QFontDatabase::GeneralFont));
+    connect(m_searchInput, &QLineEdit::returnPressed, this, &DolphinSearchBox::slotReturnPressed);
+    connect(m_searchInput, &QLineEdit::textChanged, this, &DolphinSearchBox::slotSearchTextChanged);
+    setFocusProxy(m_searchInput);
+
+    // Add "Save search" button inside search box
+    m_saveSearchAction = new QAction(this);
+    m_saveSearchAction->setIcon(QIcon::fromTheme(QStringLiteral("document-save-symbolic")));
+    m_saveSearchAction->setText(i18nc("action:button", "Save this search to quickly access it again in the future"));
+    m_saveSearchAction->setEnabled(false);
+    m_searchInput->addAction(m_saveSearchAction, QLineEdit::TrailingPosition);
+    connect(m_saveSearchAction, &QAction::triggered, this, &DolphinSearchBox::slotSearchSaved);
+
+    // Create close button
+    QToolButton *closeButton = new QToolButton(contentsContainer);
+    closeButton->setAutoRaise(true);
+    closeButton->setIcon(QIcon::fromTheme(QStringLiteral("dialog-close")));
+    closeButton->setToolTip(i18nc("@info:tooltip", "Quit searching"));
+    connect(closeButton, &QToolButton::clicked, this, &DolphinSearchBox::emitCloseRequest);
 
     // Apply layout for the search input
 
     // Apply layout for the search input
-    QHBoxLayout* searchInputLayout = new QHBoxLayout();
-    searchInputLayout->setMargin(0);
-    searchInputLayout->addWidget(closeButton);
-    searchInputLayout->addWidget(searchLabel);
+    QHBoxLayout *searchInputLayout = new QHBoxLayout();
+    searchInputLayout->setContentsMargins(0, 0, 0, 0);
     searchInputLayout->addWidget(m_searchInput);
     searchInputLayout->addWidget(m_searchInput);
+    searchInputLayout->addWidget(closeButton);
 
 
-    // Create "From Here" and "Everywhere"button
-    m_fromHereButton = new QPushButton(this);
+    // Create "Filename" and "Content" button
+    m_fileNameButton = new QToolButton(contentsContainer);
+    m_fileNameButton->setText(i18nc("action:button", "Filename"));
+    initButton(m_fileNameButton);
+
+    m_contentButton = new QToolButton();
+    m_contentButton->setText(i18nc("action:button", "Content"));
+    initButton(m_contentButton);
+
+    QButtonGroup *searchWhatGroup = new QButtonGroup(contentsContainer);
+    searchWhatGroup->addButton(m_fileNameButton);
+    searchWhatGroup->addButton(m_contentButton);
+
+    m_separator = new KSeparator(Qt::Vertical, contentsContainer);
+
+    // Create "From Here" and "Your files" buttons
+    m_fromHereButton = new QToolButton(contentsContainer);
     m_fromHereButton->setText(i18nc("action:button", "From Here"));
     initButton(m_fromHereButton);
 
     m_fromHereButton->setText(i18nc("action:button", "From Here"));
     initButton(m_fromHereButton);
 
-    m_everywhereButton = new QPushButton(this);
-    m_everywhereButton->setText(i18nc("action:button", "Everywhere"));
+    m_everywhereButton = new QToolButton(contentsContainer);
+    m_everywhereButton->setText(i18nc("action:button", "Your files"));
+    m_everywhereButton->setToolTip(i18nc("action:button", "Search in your home directory"));
+    m_everywhereButton->setIcon(QIcon::fromTheme(QStringLiteral("user-home")));
+    m_everywhereButton->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
     initButton(m_everywhereButton);
 
     initButton(m_everywhereButton);
 
-    QButtonGroup* searchLocationGroup = new QButtonGroup(this);
+    QButtonGroup *searchLocationGroup = new QButtonGroup(contentsContainer);
     searchLocationGroup->addButton(m_fromHereButton);
     searchLocationGroup->addButton(m_everywhereButton);
 
     searchLocationGroup->addButton(m_fromHereButton);
     searchLocationGroup->addButton(m_everywhereButton);
 
-    // Create "Filename" and "Content" button
-    m_fileNameButton = new QPushButton(this);
-    m_fileNameButton->setText(i18nc("action:button", "Filename"));
-    initButton(m_fileNameButton);
+    KService::Ptr kfind = KService::serviceByDesktopName(QStringLiteral("org.kde.kfind"));
+
+    QToolButton *kfindToolsButton = nullptr;
+    if (kfind) {
+        kfindToolsButton = new QToolButton(contentsContainer);
+        kfindToolsButton->setAutoRaise(true);
+        kfindToolsButton->setPopupMode(QToolButton::InstantPopup);
+        kfindToolsButton->setIcon(QIcon::fromTheme("arrow-down-double"));
+        kfindToolsButton->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
+        kfindToolsButton->setText(i18n("Open %1", kfind->name()));
+        kfindToolsButton->setIcon(QIcon::fromTheme(kfind->icon()));
+
+        connect(kfindToolsButton, &QToolButton::clicked, this, [this, kfind] {
+            auto *job = new KIO::ApplicationLauncherJob(kfind);
+            job->setUrls({m_searchPath});
+            job->start();
+        });
+    }
 
 
-    m_contentButton = new QPushButton();
-    m_contentButton->setText(i18nc("action:button", "Content"));
-    initButton(m_contentButton);;
+    // Create "Facets" widget
+    m_facetsWidget = new DolphinFacetsWidget(contentsContainer);
+    m_facetsWidget->installEventFilter(this);
+    m_facetsWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Maximum);
+    m_facetsWidget->layout()->setSpacing(Dolphin::LAYOUT_SPACING_SMALL);
+    connect(m_facetsWidget, &DolphinFacetsWidget::facetChanged, this, &DolphinSearchBox::slotFacetChanged);
 
 
-    QButtonGroup* searchWhatGroup = new QButtonGroup(this);
-    searchWhatGroup->addButton(m_fileNameButton);
-    searchWhatGroup->addButton(m_contentButton);
+    // Put the options into a QScrollArea. This prevents increasing the view width
+    // in case that not enough width for the options is available.
+    QWidget *optionsContainer = new QWidget(contentsContainer);
 
     // Apply layout for the options
 
     // Apply layout for the options
-    QHBoxLayout* optionsLayout = new QHBoxLayout();
-    optionsLayout->setMargin(0);
-    optionsLayout->addWidget(m_fromHereButton);
-    optionsLayout->addWidget(m_everywhereButton);
-    optionsLayout->addWidget(new KSeparator(Qt::Vertical));
+    QHBoxLayout *optionsLayout = new QHBoxLayout(optionsContainer);
+    optionsLayout->setContentsMargins(0, 0, 0, 0);
+    optionsLayout->setSpacing(Dolphin::LAYOUT_SPACING_SMALL);
     optionsLayout->addWidget(m_fileNameButton);
     optionsLayout->addWidget(m_contentButton);
     optionsLayout->addWidget(m_fileNameButton);
     optionsLayout->addWidget(m_contentButton);
+    optionsLayout->addWidget(m_separator);
+    optionsLayout->addWidget(m_fromHereButton);
+    optionsLayout->addWidget(m_everywhereButton);
+    optionsLayout->addWidget(new KSeparator(Qt::Vertical, contentsContainer));
+    if (kfindToolsButton) {
+        optionsLayout->addWidget(kfindToolsButton);
+    }
     optionsLayout->addStretch(1);
 
     optionsLayout->addStretch(1);
 
-    m_topLayout = new QVBoxLayout(this);
+    m_optionsScrollArea = new QScrollArea(contentsContainer);
+    m_optionsScrollArea->setFrameShape(QFrame::NoFrame);
+    m_optionsScrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    m_optionsScrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    m_optionsScrollArea->setMaximumHeight(optionsContainer->sizeHint().height());
+    m_optionsScrollArea->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
+    m_optionsScrollArea->setWidget(optionsContainer);
+    m_optionsScrollArea->setWidgetResizable(true);
+
+    m_topLayout = new QVBoxLayout(contentsContainer);
+    m_topLayout->setContentsMargins(0, Dolphin::LAYOUT_SPACING_SMALL, 0, 0);
+    m_topLayout->setSpacing(Dolphin::LAYOUT_SPACING_SMALL);
     m_topLayout->addLayout(searchInputLayout);
     m_topLayout->addLayout(searchInputLayout);
-    m_topLayout->addLayout(optionsLayout);
+    m_topLayout->addWidget(m_optionsScrollArea);
+    m_topLayout->addWidget(m_facetsWidget);
 
 
-    searchLabel->setBuddy(m_searchInput);
     loadSettings();
 
     // The searching should be started automatically after the user did not change
     loadSettings();
 
     // The searching should be started automatically after the user did not change
-    // the text within one second
+    // the text for a while
     m_startSearchTimer = new QTimer(this);
     m_startSearchTimer->setSingleShot(true);
     m_startSearchTimer = new QTimer(this);
     m_startSearchTimer->setSingleShot(true);
-    m_startSearchTimer->setInterval(1000);
-    connect(m_startSearchTimer, SIGNAL(timeout()), this, SLOT(emitSearchSignal()));
+    m_startSearchTimer->setInterval(500);
+    connect(m_startSearchTimer, &QTimer::timeout, this, &DolphinSearchBox::emitSearchRequest);
+
+    m_initialized = true;
 }
 
 }
 
-bool DolphinSearchBox::isSearchPathIndexed() const
+QString DolphinSearchBox::queryTitle(const QString &text) const
 {
 {
-#ifdef HAVE_NEPOMUK
-    const QString path = m_searchPath.path();
+    return i18nc("@title UDS_DISPLAY_NAME for a KIO directory listing. %1 is the query the user entered.", "Query Results from '%1'", text);
+}
 
 
-    const KConfig strigiConfig("nepomukstrigirc");
-    const QStringList indexedFolders = strigiConfig.group("General").readPathEntry("folders", QStringList());
+QUrl DolphinSearchBox::balooUrlForSearching() const
+{
+#if HAVE_BALOO
+    const QString text = m_searchInput->text();
 
 
-    // Check whether the current search path is part of an indexed folder
-    bool isIndexed = false;
-    foreach (const QString& indexedFolder, indexedFolders) {
-        if (path.startsWith(indexedFolder)) {
-            isIndexed = true;
-            break;
-        }
+    Baloo::Query query;
+    query.addType(m_facetsWidget->facetType());
+
+    QStringList queryStrings = m_facetsWidget->searchTerms();
+
+    if (m_contentButton->isChecked()) {
+        queryStrings << text;
+    } else if (!text.isEmpty()) {
+        queryStrings << QStringLiteral("filename:\"%1\"").arg(text);
     }
 
     }
 
-    if (isIndexed) {
-        // The current search path is part of an indexed folder. Check whether no
-        // excluded folder is part of the search path.
-        const QStringList excludedFolders = strigiConfig.group("General").readPathEntry("exclude folders", QStringList());
-        foreach (const QString& excludedFolder, excludedFolders) {
-            if (path.startsWith(excludedFolder)) {
-                isIndexed = false;
-                break;
-            }
-        }
+    if (m_fromHereButton->isChecked()) {
+        query.setIncludeFolder(m_searchPath.toLocalFile());
     }
 
     }
 
-    return isIndexed;
+    query.setSearchString(queryStrings.join(QLatin1Char(' ')));
+
+    return query.toSearchUrl(queryTitle(text));
 #else
 #else
-    return false;
+    return QUrl();
 #endif
 }
 
 #endif
 }
 
-KUrl DolphinSearchBox::nepomukUrlForSearching() const
+void DolphinSearchBox::updateFromQuery(const DolphinQuery &query)
 {
 {
-#ifdef HAVE_NEPOMUK
-    Nepomuk::Query::AndTerm andTerm;
+    // Block all signals to avoid unnecessary "searchRequest" signals
+    // while we adjust the search text and the facet widget.
+    blockSignals(true);
 
 
-    // Add input from search filter
-    const QString text = m_searchInput->text();
-    if (!text.isEmpty()) {
-        if (m_fileNameButton->isChecked()) {
-            QString regex = QRegExp::escape(text);
-            regex.replace("\\*", QLatin1String(".*"));
-            regex.replace("\\?", QLatin1String("."));
-            regex.replace("\\", "\\\\");
-            andTerm.addSubTerm(Nepomuk::Query::ComparisonTerm(
-                                    Nepomuk::Vocabulary::NFO::fileName(),
-                                    Nepomuk::Query::LiteralTerm(regex),
-                                    Nepomuk::Query::ComparisonTerm::Regexp));
-        } else {
-            const Nepomuk::Query::Query customQuery = Nepomuk::Query::QueryParser::parseQuery(text, Nepomuk::Query::QueryParser::DetectFilenamePattern);
-            if (customQuery.isValid()) {
-                andTerm.addSubTerm(customQuery.term());
-            }
-        }
+    const QString customDir = query.includeFolder();
+    if (!customDir.isEmpty()) {
+        setSearchPath(QUrl::fromLocalFile(customDir));
+    } else {
+        setSearchPath(QUrl::fromLocalFile(QDir::homePath()));
     }
 
     }
 
-    Nepomuk::Query::FileQuery fileQuery;
-    fileQuery.setFileMode(Nepomuk::Query::FileQuery::QueryFiles);
-    fileQuery.setTerm(andTerm);
+    setText(query.text());
 
 
-    return fileQuery.toSearchUrl(i18nc("@title UDS_DISPLAY_NAME for a KIO directory listing. %1 is the query the user entered.",
-                                       "Query Results from '%1'",
-                                       text));
+    if (query.hasContentSearch()) {
+        m_contentButton->setChecked(true);
+    } else if (query.hasFileName()) {
+        m_fileNameButton->setChecked(true);
+    }
+
+    m_facetsWidget->resetSearchTerms();
+    m_facetsWidget->setFacetType(query.type());
+    const QStringList searchTerms = query.searchTerms();
+    for (const QString &searchTerm : searchTerms) {
+        m_facetsWidget->setSearchTerm(searchTerm);
+    }
+
+    m_startSearchTimer->stop();
+    blockSignals(false);
+}
+
+void DolphinSearchBox::updateFacetsVisible()
+{
+    const bool indexingEnabled = isIndexingEnabled();
+    m_facetsWidget->setEnabled(indexingEnabled);
+    m_facetsWidget->setVisible(indexingEnabled);
+
+    // The m_facetsWidget might have changed visibility. We smoothly animate towards the updated height.
+    if (isVisible() && isEnabled()) {
+        setVisible(true, WithAnimation);
+    }
+}
+
+bool DolphinSearchBox::isIndexingEnabled() const
+{
+#if HAVE_BALOO
+    const Baloo::IndexerConfig searchInfo;
+    return searchInfo.fileIndexingEnabled() && !searchPath().isEmpty() && searchInfo.shouldBeIndexed(searchPath().toLocalFile());
 #else
 #else
-    return KUrl();
+    return false;
 #endif
 }
 
 #endif
 }
 
-#include "dolphinsearchbox.moc"
+int DolphinSearchBox::preferredHeight() const
+{
+    return m_initialized ? m_topLayout->sizeHint().height() : 0;
+}
+
+#include "moc_dolphinsearchbox.cpp"