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Merge branch 'release/21.04'
[dolphin.git] / src / search / dolphinfacetswidget.cpp
diff --git a/src/search/dolphinfacetswidget.cpp b/src/search/dolphinfacetswidget.cpp
index de715d78fdd3f4547ac2c6c9482ff38735561c24..db53d595fa4ec707b83aa1aba4e02ae3f1f8c678 100644 (file)
--- a/src/search/dolphinfacetswidget.cpp
+++ b/src/search/dolphinfacetswidget.cpp
@@ -1,213 +1,305 @@
-/***************************************************************************
-*    Copyright (C) 2012 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: 2012 Peter Penz <peter.penz19@gmail.com>
+ *  SPDX-FileCopyrightText: 2019 Ismael Asensio <isma.af@mgmail.com>
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ */
 
 #include "dolphinfacetswidget.h"
 
 
 #include "dolphinfacetswidget.h"
 
-#include <KLocale>
-#include <QButtonGroup>
-#include <QCheckBox>
+#include <KLocalizedString>
+#include <KProtocolInfo>
+
+#include <QComboBox>
 #include <QDate>
 #include <QDate>
-#include <QRadioButton>
+#include <QEvent>
 #include <QHBoxLayout>
 #include <QHBoxLayout>
-#include <QVBoxLayout>
-
-#ifdef HAVE_NEPOMUK
-    #include <Nepomuk2/Query/AndTerm>
-    #include <Nepomuk2/Query/ComparisonTerm>
-    #include <Nepomuk2/Query/LiteralTerm>
-    #include <Nepomuk2/Query/OrTerm>
-    #include <Nepomuk2/Query/Query>
-    #include <Nepomuk2/Query/ResourceTypeTerm>
-    #include <Nepomuk2/Vocabulary/NFO>
-    #include <Nepomuk2/Vocabulary/NIE>
-    #include <Soprano/Vocabulary/NAO>
-#endif
+#include <QIcon>
+#include <QMenu>
+#include <QToolButton>
 
 DolphinFacetsWidget::DolphinFacetsWidget(QWidget* parent) :
     QWidget(parent),
 
 DolphinFacetsWidget::DolphinFacetsWidget(QWidget* parent) :
     QWidget(parent),
-    m_documents(0),
-    m_images(0),
-    m_audio(0),
-    m_videos(0),
-    m_anytime(0),
-    m_today(0),
-    m_yesterday(0),
-    m_thisWeek(0),
-    m_thisMonth(0),
-    m_thisYear(0),
-    m_anyRating(0),
-    m_oneOrMore(0),
-    m_twoOrMore(0),
-    m_threeOrMore(0),
-    m_fourOrMore(0),
-    m_maxRating(0)
-{
-    m_documents = createCheckBox(i18nc("@option:check", "Documents"));
-    m_images    = createCheckBox(i18nc("@option:check", "Images"));
-    m_audio     = createCheckBox(i18nc("@option:check", "Audio Files"));
-    m_videos    = createCheckBox(i18nc("@option:check", "Videos"));
-
-    QVBoxLayout* typeLayout = new QVBoxLayout();
-    typeLayout->setSpacing(0);
-    typeLayout->addWidget(m_documents);
-    typeLayout->addWidget(m_images);
-    typeLayout->addWidget(m_audio);
-    typeLayout->addWidget(m_videos);
-    typeLayout->addStretch();
-
-    QButtonGroup* timespanGroup = new QButtonGroup(this);
-    m_anytime   = createRadioButton(i18nc("@option:option", "Anytime"), timespanGroup);
-    m_today     = createRadioButton(i18nc("@option:option", "Today"), timespanGroup);
-    m_yesterday = createRadioButton(i18nc("@option:option", "Yesterday"), timespanGroup);
-    m_thisWeek  = createRadioButton(i18nc("@option:option", "This Week"), timespanGroup);
-    m_thisMonth = createRadioButton(i18nc("@option:option", "This Month"), timespanGroup);
-    m_thisYear  = createRadioButton(i18nc("@option:option", "This Year"), timespanGroup);
-
-    QVBoxLayout* timespanLayout = new QVBoxLayout();
-    timespanLayout->setSpacing(0);
-    timespanLayout->addWidget(m_anytime);
-    timespanLayout->addWidget(m_today);
-    timespanLayout->addWidget(m_yesterday);
-    timespanLayout->addWidget(m_thisWeek);
-    timespanLayout->addWidget(m_thisMonth);
-    timespanLayout->addWidget(m_thisYear);
-    timespanLayout->addStretch();
-
-    QButtonGroup* ratingGroup = new QButtonGroup(this);
-    m_anyRating   = createRadioButton(i18nc("@option:option", "Any Rating"), ratingGroup);
-    m_oneOrMore   = createRadioButton(i18nc("@option:option", "1 or more"), ratingGroup);
-    m_twoOrMore   = createRadioButton(i18nc("@option:option", "2 or more"), ratingGroup);
-    m_threeOrMore = createRadioButton(i18nc("@option:option", "3 or more"), ratingGroup);
-    m_fourOrMore  = createRadioButton(i18nc("@option:option", "4 or more"), ratingGroup);
-    m_maxRating   = createRadioButton(i18nc("@option:option", "Highest Rating"), ratingGroup);
-
-    QVBoxLayout* ratingLayout = new QVBoxLayout();
-    ratingLayout->setSpacing(0);
-    ratingLayout->addWidget(m_anyRating);
-    ratingLayout->addWidget(m_oneOrMore);
-    ratingLayout->addWidget(m_twoOrMore);
-    ratingLayout->addWidget(m_threeOrMore);
-    ratingLayout->addWidget(m_fourOrMore);
-    ratingLayout->addWidget(m_maxRating);
+    m_typeSelector(nullptr),
+    m_dateSelector(nullptr),
+    m_ratingSelector(nullptr),
+    m_tagsSelector(nullptr)
+{
+    m_typeSelector = new QComboBox(this);
+    m_typeSelector->addItem(QIcon::fromTheme(QStringLiteral("none")), i18nc("@item:inlistbox", "Any Type"), QString());
+    m_typeSelector->addItem(QIcon::fromTheme(QStringLiteral("inode-directory")), i18nc("@item:inlistbox", "Folders") , QStringLiteral("Folder"));
+    m_typeSelector->addItem(QIcon::fromTheme(QStringLiteral("text-x-generic")), i18nc("@item:inlistbox", "Documents") , QStringLiteral("Document"));
+    m_typeSelector->addItem(QIcon::fromTheme(QStringLiteral("image-x-generic")), i18nc("@item:inlistbox", "Images") , QStringLiteral("Image"));
+    m_typeSelector->addItem(QIcon::fromTheme(QStringLiteral("audio-x-generic")), i18nc("@item:inlistbox", "Audio Files"), QStringLiteral("Audio"));
+    m_typeSelector->addItem(QIcon::fromTheme(QStringLiteral("video-x-generic")), i18nc("@item:inlistbox", "Videos") , QStringLiteral("Video"));
+    initComboBox(m_typeSelector);
+
+    const QDate currentDate = QDate::currentDate();
+
+    m_dateSelector = new QComboBox(this);
+    m_dateSelector->addItem(QIcon::fromTheme(QStringLiteral("view-calendar")), i18nc("@item:inlistbox", "Any Date"), QDate());
+    m_dateSelector->addItem(QIcon::fromTheme(QStringLiteral("go-jump-today")), i18nc("@item:inlistbox", "Today") , currentDate);
+    m_dateSelector->addItem(QIcon::fromTheme(QStringLiteral("go-jump-today")), i18nc("@item:inlistbox", "Yesterday") , currentDate.addDays(-1));
+    m_dateSelector->addItem(QIcon::fromTheme(QStringLiteral("view-calendar-week")), i18nc("@item:inlistbox", "This Week") , currentDate.addDays(1 - currentDate.dayOfWeek()));
+    m_dateSelector->addItem(QIcon::fromTheme(QStringLiteral("view-calendar-month")), i18nc("@item:inlistbox", "This Month"), currentDate.addDays(1 - currentDate.day()));
+    m_dateSelector->addItem(QIcon::fromTheme(QStringLiteral("view-calendar-year")), i18nc("@item:inlistbox", "This Year") , currentDate.addDays(1 - currentDate.dayOfYear()));
+    initComboBox(m_dateSelector);
+
+    m_ratingSelector = new QComboBox(this);
+    m_ratingSelector->addItem(QIcon::fromTheme(QStringLiteral("non-starred-symbolic")), i18nc("@item:inlistbox", "Any Rating"), 0);
+    m_ratingSelector->addItem(QIcon::fromTheme(QStringLiteral("starred-symbolic")), i18nc("@item:inlistbox", "1 or more"), 1);
+    m_ratingSelector->addItem(QIcon::fromTheme(QStringLiteral("starred-symbolic")), i18nc("@item:inlistbox", "2 or more"), 2);
+    m_ratingSelector->addItem(QIcon::fromTheme(QStringLiteral("starred-symbolic")), i18nc("@item:inlistbox", "3 or more"), 3);
+    m_ratingSelector->addItem(QIcon::fromTheme(QStringLiteral("starred-symbolic")), i18nc("@item:inlistbox", "4 or more"), 4);
+    m_ratingSelector->addItem(QIcon::fromTheme(QStringLiteral("starred-symbolic")), i18nc("@item:inlistbox", "Highest Rating"), 5);
+    initComboBox(m_ratingSelector);
+
+    m_clearTagsAction = new QAction(QIcon::fromTheme(QStringLiteral("edit-clear-all")), i18nc("@action:inmenu", "Clear Selection"), this);
+    connect(m_clearTagsAction, &QAction::triggered, this, [this]() {
+        resetSearchTags();
+        Q_EMIT facetChanged();
+    });
+
+    m_tagsSelector = new QToolButton(this);
+    m_tagsSelector->setIcon(QIcon::fromTheme(QStringLiteral("tag")));
+    m_tagsSelector->setMenu(new QMenu(this));
+    m_tagsSelector->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
+    m_tagsSelector->setPopupMode(QToolButton::MenuButtonPopup);
+    m_tagsSelector->setAutoRaise(true);
+    updateTagsSelector();
+
+    connect(m_tagsSelector, &QToolButton::clicked, m_tagsSelector, &QToolButton::showMenu);
+    connect(m_tagsSelector->menu(), &QMenu::aboutToShow, this, &DolphinFacetsWidget::updateTagsMenu);
+    connect(&m_tagsLister, &KCoreDirLister::itemsAdded, this, &DolphinFacetsWidget::updateTagsMenuItems);
+    updateTagsMenu();
 
     QHBoxLayout* topLayout = new QHBoxLayout(this);
 
     QHBoxLayout* topLayout = new QHBoxLayout(this);
-    topLayout->addLayout(typeLayout);
-    topLayout->addLayout(timespanLayout);
-    topLayout->addLayout(ratingLayout);
-    topLayout->addStretch();
+    topLayout->setContentsMargins(0, 0, 0, 0);
+    topLayout->addWidget(m_typeSelector);
+    topLayout->addWidget(m_dateSelector);
+    topLayout->addWidget(m_ratingSelector);
+    topLayout->addWidget(m_tagsSelector);
 
 
-    m_anytime->setChecked(true);
-    m_anyRating->setChecked(true);
+    resetSearchTerms();
 }
 
 DolphinFacetsWidget::~DolphinFacetsWidget()
 {
 }
 
 }
 
 DolphinFacetsWidget::~DolphinFacetsWidget()
 {
 }
 
-#ifdef HAVE_NEPOMUK
-Nepomuk2::Query::Term DolphinFacetsWidget::facetsTerm() const
+void DolphinFacetsWidget::changeEvent(QEvent *event)
+{
+    if (event->type() == QEvent::EnabledChange) {
+        if (isEnabled()) {
+            updateTagsSelector();
+        } else {
+            resetSearchTerms();
+        }
+    }
+}
+
+void DolphinFacetsWidget::resetSearchTerms()
 {
 {
-    Nepomuk2::Query::AndTerm andTerm;
+    m_typeSelector->setCurrentIndex(0);
+    m_dateSelector->setCurrentIndex(0);
+    m_ratingSelector->setCurrentIndex(0);
 
 
-    const bool hasTypeFilter = m_documents->isChecked() ||
-                               m_images->isChecked() ||
-                               m_audio->isChecked() ||
-                               m_videos->isChecked();
-    if (hasTypeFilter) {
-        Nepomuk2::Query::OrTerm orTerm;
+    resetSearchTags();
+}
 
 
-        if (m_documents->isChecked()) {
-            orTerm.addSubTerm(Nepomuk2::Query::ResourceTypeTerm(Nepomuk2::Vocabulary::NFO::Document()));
-        }
+QStringList DolphinFacetsWidget::searchTerms() const
+{
+    QStringList terms;
 
 
-        if (m_images->isChecked()) {
-            orTerm.addSubTerm(Nepomuk2::Query::ResourceTypeTerm(Nepomuk2::Vocabulary::NFO::Image()));
-        }
+    if (m_ratingSelector->currentIndex() > 0) {
+        const int rating = m_ratingSelector->currentData().toInt() * 2;
+        terms << QStringLiteral("rating>=%1").arg(rating);
+    }
 
 
-        if (m_audio->isChecked()) {
-            orTerm.addSubTerm(Nepomuk2::Query::ComparisonTerm(Nepomuk2::Vocabulary::NIE::mimeType(),
-                                                             Nepomuk2::Query::LiteralTerm("audio")));
+    if (m_dateSelector->currentIndex() > 0) {
+        const QDate date = m_dateSelector->currentData().toDate();
+        terms << QStringLiteral("modified>=%1").arg(date.toString(Qt::ISODate));
+    }
+
+    if (!m_searchTags.isEmpty()) {
+        for (auto const &tag : m_searchTags) {
+            if (tag.contains(QLatin1Char(' '))) {
+                terms << QStringLiteral("tag:\"%1\"").arg(tag);
+            } else {
+                terms << QStringLiteral("tag:%1").arg(tag);
+            }
         }
         }
+    }
+
+    return terms;
+}
 
 
-        if (m_videos->isChecked()) {
-            orTerm.addSubTerm(Nepomuk2::Query::ComparisonTerm(Nepomuk2::Vocabulary::NIE::mimeType(),
-                                                             Nepomuk2::Query::LiteralTerm("video")));
+QString DolphinFacetsWidget::facetType() const
+{
+    return m_typeSelector->currentData().toString();
+}
+
+bool DolphinFacetsWidget::isSearchTerm(const QString& term) const
+{
+    static const QLatin1String searchTokens[] {
+        QLatin1String("modified>="),
+        QLatin1String("rating>="),
+        QLatin1String("tag:"), QLatin1String("tag=")
+    };
+
+    for (const auto &searchToken : searchTokens) {
+        if (term.startsWith(searchToken)) {
+            return true;
         }
         }
+    }
+    return false;
+}
 
 
-        andTerm.addSubTerm(orTerm);
+void DolphinFacetsWidget::setSearchTerm(const QString& term)
+{
+    if (term.startsWith(QLatin1String("modified>="))) {
+        const QString value = term.mid(10);
+        const QDate date = QDate::fromString(value, Qt::ISODate);
+        setTimespan(date);
+    } else if (term.startsWith(QLatin1String("rating>="))) {
+        const QString value = term.mid(8);
+        const int stars = value.toInt() / 2;
+        setRating(stars);
+    } else if (term.startsWith(QLatin1String("tag:")) ||
+               term.startsWith(QLatin1String("tag="))) {
+        const QString value = term.mid(4);
+        addSearchTag(value);
     }
     }
+}
 
 
-    if (!m_anyRating->isChecked()) {
-        int stars = 1; // represents m_oneOrMore
-        if (m_twoOrMore->isChecked()) {
-            stars = 2;
-        } else if (m_threeOrMore->isChecked()) {
-            stars = 3;
-        } else if (m_fourOrMore->isChecked()) {
-            stars = 4;
-        } else if (m_maxRating->isChecked()) {
-            stars = 5;
+void DolphinFacetsWidget::setFacetType(const QString& type)
+{
+    for (int index = 0; index <= m_typeSelector->count(); index++) {
+        if (type == m_typeSelector->itemData(index).toString()) {
+            m_typeSelector->setCurrentIndex(index);
+            break;
         }
         }
+    }
+}
 
 
-        const int rating = stars * 2;
-        Nepomuk2::Query::ComparisonTerm term(Soprano::Vocabulary::NAO::numericRating(),
-                                            Nepomuk2::Query::LiteralTerm(rating),
-                                            Nepomuk2::Query::ComparisonTerm::GreaterOrEqual);
-        andTerm.addSubTerm(term);
-    }
-
-    if (!m_anytime->isChecked()) {
-        QDate date = QDate::currentDate(); // represents m_today
-        if (m_yesterday->isChecked()) {
-            date.addDays(-1);
-        } else if (m_thisWeek->isChecked()) {
-            date.addDays(1 - date.dayOfWeek());
-        } else if (m_thisMonth->isChecked()) {
-            date.addDays(1 - date.day());
-        } else if (m_thisYear->isChecked()) {
-            date.addDays(1 - date.dayOfYear());
+void DolphinFacetsWidget::setRating(const int stars)
+{
+    if (stars < 0 || stars > 5) {
+        return;
+    }
+    m_ratingSelector->setCurrentIndex(stars);
+}
+
+void DolphinFacetsWidget::setTimespan(const QDate& date)
+{
+    if (!date.isValid()) {
+        return;
+    }
+    m_dateSelector->setCurrentIndex(0);
+    for (int index = 1; index <= m_dateSelector->count(); index++) {
+        if (date >= m_dateSelector->itemData(index).toDate()) {
+            m_dateSelector->setCurrentIndex(index);
+            break;
         }
         }
+    }
+}
 
 
-        Nepomuk2::Query::ComparisonTerm term(Nepomuk2::Vocabulary::NIE::lastModified(),
-                                            Nepomuk2::Query::LiteralTerm(QDateTime(date)),
-                                            Nepomuk2::Query::ComparisonTerm::GreaterOrEqual);
-        andTerm.addSubTerm(term);
+void DolphinFacetsWidget::addSearchTag(const QString& tag)
+{
+    if (tag.isEmpty() || m_searchTags.contains(tag)) {
+        return;
     }
     }
+    m_searchTags.append(tag);
+    m_searchTags.sort();
+    updateTagsSelector();
+}
+
+void DolphinFacetsWidget::removeSearchTag(const QString& tag)
+{
+    if (tag.isEmpty() || !m_searchTags.contains(tag)) {
+        return;
+    }
+    m_searchTags.removeAll(tag);
+    updateTagsSelector();
+}
+
+void DolphinFacetsWidget::resetSearchTags()
+{
+    m_searchTags = QStringList();
+    updateTagsSelector();
+    updateTagsMenu();
+}
 
 
-    return andTerm;
+void DolphinFacetsWidget::initComboBox(QComboBox* combo)
+{
+    combo->setFrame(false);
+    combo->setMinimumHeight(parentWidget()->height());
+    combo->setCurrentIndex(0);
+    connect(combo, QOverload<int>::of(&QComboBox::activated), this, &DolphinFacetsWidget::facetChanged);
 }
 }
-#endif
 
 
-QCheckBox* DolphinFacetsWidget::createCheckBox(const QString& text)
+void DolphinFacetsWidget::updateTagsSelector()
 {
 {
-    QCheckBox* checkBox = new QCheckBox(text);
-    connect(checkBox, SIGNAL(clicked()), this, SIGNAL(facetChanged()));
-    return checkBox;
+    const bool hasListedTags = !m_tagsSelector->menu()->isEmpty();
+    const bool hasSelectedTags = !m_searchTags.isEmpty();
+
+    if (hasSelectedTags) {
+        const QString tagsText = m_searchTags.join(i18nc("String list separator", ", "));
+        m_tagsSelector->setText(i18ncp("@action:button %2 is a list of tags",
+                                       "Tag: %2", "Tags: %2",m_searchTags.count(), tagsText));
+    } else {
+        m_tagsSelector->setText(i18nc("@action:button", "Add Tags"));
+    }
+
+    m_tagsSelector->setEnabled(isEnabled() && (hasListedTags || hasSelectedTags));
+    m_clearTagsAction->setEnabled(hasSelectedTags);
 }
 
 }
 
-QRadioButton* DolphinFacetsWidget::createRadioButton(const QString& text,
-                                                     QButtonGroup* group)
+void DolphinFacetsWidget::updateTagsMenu()
 {
 {
-    QRadioButton* button = new QRadioButton(text);
-    connect(button, SIGNAL(clicked()), this, SIGNAL(facetChanged()));
-    group->addButton(button);
-    return button;
+    updateTagsMenuItems({}, {});
+    if (KProtocolInfo::isKnownProtocol(QStringLiteral("tags"))) {
+        m_tagsLister.openUrl(QUrl(QStringLiteral("tags:/")), KCoreDirLister::OpenUrlFlag::Reload);
+    }
 }
 
 }
 
-#include "dolphinfacetswidget.moc"
+void DolphinFacetsWidget::updateTagsMenuItems(const QUrl&, const KFileItemList& items)
+{
+    QMenu *tagsMenu = m_tagsSelector->menu();
+    tagsMenu->clear();
+
+    QStringList allTags = QStringList(m_searchTags);
+    for (const KFileItem &item: items) {
+        allTags.append(item.name());
+    }
+    allTags.sort(Qt::CaseInsensitive);
+    allTags.removeDuplicates();
+
+    const bool onlyOneTag = allTags.count() == 1;
+
+    for (const QString& tagName : qAsConst(allTags)) {
+        QAction *action = tagsMenu->addAction(QIcon::fromTheme(QStringLiteral("tag")), tagName);
+        action->setCheckable(true);
+        action->setChecked(m_searchTags.contains(tagName));
+
+        connect(action, &QAction::triggered, this, [this, tagName, onlyOneTag](bool isChecked) {
+            if (isChecked) {
+                addSearchTag(tagName);
+            } else {
+                removeSearchTag(tagName);
+            }
+            Q_EMIT facetChanged();
+
+            if (!onlyOneTag) {
+                m_tagsSelector->menu()->show();
+            }
+        });
+    }
+
+    if (allTags.count() > 1) {
+        tagsMenu->addSeparator();
+        tagsMenu->addAction(m_clearTagsAction);
+    }
+
+    updateTagsSelector();
+}