]> cloud.milkyroute.net Git - dolphin.git/blobdiff - src/panels/information/informationpanelcontent.cpp
[Information Panel] Remove unused PlacesItemModel
[dolphin.git] / src / panels / information / informationpanelcontent.cpp
index 9f417a379db07f367a916b2aa684aab844245ffe..bb5f793cd4699855b49df464e4988d07e4f8cc24 100644 (file)
@@ -1,87 +1,63 @@
-/***************************************************************************
- *   Copyright (C) 2009 by Peter Penz <peter.penz@gmx.at>                  *
- *                                                                         *
- *   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: 2009 Peter Penz <peter.penz19@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 
 #include "informationpanelcontent.h"
 
-#include <config-nepomuk.h>
+#include <KIO/JobUiDelegate>
+#include <KIO/PreviewJob>
+#include <KConfigGroup>
+#include <KIconEffect>
+#include <KIconLoader>
+#include <KJobWidgets>
+#include <KLocalizedString>
+#include <KSeparator>
+#include <KSharedConfig>
+#include <KStringHandler>
+#include <QPainterPath>
+
+#include <QIcon>
+#include <QTextDocument>
 
-#include <kdialog.h>
-#include <kfileitem.h>
-#include <kfileplacesmodel.h>
-#include <kio/previewjob.h>
-#include <kiconeffect.h>
-#include <kiconloader.h>
-#include <klocale.h>
-#include <kmenu.h>
-#include <kseparator.h>
+#include <Baloo/FileMetaDataWidget>
 
 #include <Phonon/BackendCapabilities>
 #include <Phonon/MediaObject>
-#include <Phonon/SeekSlider>
 
-#include <QEvent>
 #include <QLabel>
-#include <QPixmap>
-#include <QResizeEvent>
+#include <QDialogButtonBox>
 #include <QScrollArea>
 #include <QTextLayout>
-#include <QTextLine>
 #include <QTimer>
 #include <QVBoxLayout>
+#include <QScroller>
+#include <QStyle>
+#include <QPainter>
+#include <QBitmap>
+#include <QLinearGradient>
+#include <QPolygon>
+#include <QGesture>
 
 #include "dolphin_informationpanelsettings.h"
-#include "settings/dolphinsettings.h"
-#include "metadatawidget.h"
-#include "metatextlabel.h"
 #include "phononwidget.h"
 #include "pixmapviewer.h"
 
-#ifdef HAVE_NEPOMUK
-#define DISABLE_NEPOMUK_LEGACY
-#include <Nepomuk/Resource>
-#include <Nepomuk/Types/Property>
-#include <Nepomuk/Variant>
-#endif
-
-/**
- * Helper function for sorting items with qSort() in
- * InformationPanelContent::contextMenu().
- */
-bool lessThan(const QAction* action1, const QAction* action2)
-{
-    return action1->text() < action2->text();
-}
-
+const int PLAY_ARROW_SIZE = 24;
+const int PLAY_ARROW_BORDER_SIZE = 2;
 
 InformationPanelContent::InformationPanelContent(QWidget* parent) :
-    Panel(parent),
+    QWidget(parent),
     m_item(),
-    m_pendingPreview(false),
-    m_outdatedPreviewTimer(0),
-    m_nameLabel(0),
-    m_preview(0),
-    m_previewSeparator(0),
-    m_phononWidget(0),
-    m_metaDataWidget(0),
-    m_metaDataSeparator(0),
-    m_metaTextArea(0),
-    m_metaTextLabel(0)
+    m_previewJob(nullptr),
+    m_outdatedPreviewTimer(nullptr),
+    m_preview(nullptr),
+    m_phononWidget(nullptr),
+    m_nameLabel(nullptr),
+    m_metaDataWidget(nullptr),
+    m_metaDataArea(nullptr),
+    m_isVideo(false)
 {
     parent->installEventFilter(this);
 
@@ -89,22 +65,12 @@ InformationPanelContent::InformationPanelContent(QWidget* parent) :
     // delay. This prevents flickering if the new preview can be generated
     // within a very small timeframe.
     m_outdatedPreviewTimer = new QTimer(this);
-    m_outdatedPreviewTimer->setInterval(300);
+    m_outdatedPreviewTimer->setInterval(100);
     m_outdatedPreviewTimer->setSingleShot(true);
-    connect(m_outdatedPreviewTimer, SIGNAL(timeout()),
-            this, SLOT(markOutdatedPreview()));
-
-    QVBoxLayout* layout = new QVBoxLayout;
-    layout->setSpacing(KDialog::spacingHint());
+    connect(m_outdatedPreviewTimer, &QTimer::timeout,
+            this, &InformationPanelContent::markOutdatedPreview);
 
-    // name
-    m_nameLabel = new QLabel(parent);
-    QFont font = m_nameLabel->font();
-    font.setBold(true);
-    m_nameLabel->setFont(font);
-    m_nameLabel->setAlignment(Qt::AlignHCenter);
-    m_nameLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
-    m_nameLabel->setMaximumWidth(KIconLoader::SizeEnormous);
+    QVBoxLayout* layout = new QVBoxLayout(this);
 
     // preview
     const int minPreviewWidth = KIconLoader::SizeEnormous + KIconLoader::SizeMedium;
@@ -114,196 +80,231 @@ InformationPanelContent::InformationPanelContent(QWidget* parent) :
     m_preview->setMinimumHeight(KIconLoader::SizeEnormous);
 
     m_phononWidget = new PhononWidget(parent);
+    m_phononWidget->hide();
     m_phononWidget->setMinimumWidth(minPreviewWidth);
-    connect(m_phononWidget, SIGNAL(playingStarted()),
-            this, SLOT(slotPlayingStarted()));
-    connect(m_phononWidget, SIGNAL(playingStopped()),
-            this, SLOT(slotPlayingStopped()));
-
-    m_previewSeparator = new KSeparator(parent);
+    m_phononWidget->setAutoPlay(InformationPanelSettings::previewsAutoPlay());
+    connect(m_phononWidget, &PhononWidget::hasVideoChanged,
+            this, &InformationPanelContent::slotHasVideoChanged);
 
-    const bool showPreview = InformationPanelSettings::showPreview();
-    m_preview->setVisible(showPreview);
-    m_previewSeparator->setVisible(showPreview);
-
-    if (MetaDataWidget::metaDataAvailable()) {
-        // rating, comment and tags
-        m_metaDataWidget = new MetaDataWidget(parent);
-        m_metaDataWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
-        m_metaDataWidget->setMaximumWidth(KIconLoader::SizeEnormous);
-
-        const bool showRating  = InformationPanelSettings::showRating();
-        const bool showComment = InformationPanelSettings::showComment();
-        const bool showTags    = InformationPanelSettings::showTags();
-
-        m_metaDataWidget->setRatingVisible(showRating);
-        m_metaDataWidget->setCommentVisible(showComment);
-        m_metaDataWidget->setTagsVisible(showTags);
-
-        m_metaDataSeparator = new KSeparator(this);
-        m_metaDataSeparator->setVisible(showRating || showComment || showTags);
-    }
-
-    // general meta text information
-    m_metaTextLabel = new MetaTextLabel(parent);
-    m_metaTextLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
+    // name
+    m_nameLabel = new QLabel(parent);
+    QFont font = m_nameLabel->font();
+    font.setBold(true);
+    m_nameLabel->setFont(font);
+    m_nameLabel->setTextFormat(Qt::PlainText);
+    m_nameLabel->setAlignment(Qt::AlignHCenter);
+    m_nameLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Fixed);
+    m_nameLabel->setTextInteractionFlags(Qt::TextSelectableByMouse);
+
+    const bool previewsShown = InformationPanelSettings::previewsShown();
+    m_preview->setVisible(previewsShown);
+
+    m_metaDataWidget = new Baloo::FileMetaDataWidget(parent);
+    m_metaDataWidget->setDateFormat(static_cast<Baloo::DateFormats>(InformationPanelSettings::dateFormat()));
+    connect(m_metaDataWidget, &Baloo::FileMetaDataWidget::urlActivated,
+            this, &InformationPanelContent::urlActivated);
+    m_metaDataWidget->setFont(QFontDatabase::systemFont(QFontDatabase::SmallestReadableFont));
+    m_metaDataWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Minimum);
+
+    // Configuration
+    m_configureLabel = new QLabel(i18nc("@label::textbox",
+                                        "Select which data should be shown:"), this);
+    m_configureLabel->setWordWrap(true);
+    m_configureLabel->setVisible(false);
+
+    m_configureButtons = new QDialogButtonBox(QDialogButtonBox::Save | QDialogButtonBox::Cancel);
+    m_configureButtons->setVisible(false);
+    connect(m_configureButtons, &QDialogButtonBox::accepted, this, [this]() {
+                m_metaDataWidget->setConfigurationMode(Baloo::ConfigurationMode::Accept);
+                m_configureButtons->setVisible(false);
+                m_configureLabel->setVisible(false);
+                Q_EMIT configurationFinished();
+            }
+    );
+    connect(m_configureButtons, &QDialogButtonBox::rejected, this, [this]() {
+                m_metaDataWidget->setConfigurationMode(Baloo::ConfigurationMode::Cancel);
+                m_configureButtons->setVisible(false);
+                m_configureLabel->setVisible(false);
+                Q_EMIT configurationFinished();
+            }
+    );
 
-    m_metaTextArea = new QScrollArea(parent);
-    m_metaTextArea->setWidget(m_metaTextLabel);
-    m_metaTextArea->setWidgetResizable(true);
-    m_metaTextArea->setFrameShape(QFrame::NoFrame);
+    m_metaDataArea = new QScrollArea(parent);
+    m_metaDataArea->setWidget(m_metaDataWidget);
+    m_metaDataArea->setWidgetResizable(true);
+    m_metaDataArea->setFrameShape(QFrame::NoFrame);
 
-    QWidget* viewport = m_metaTextArea->viewport();
+    QWidget* viewport = m_metaDataArea->viewport();
+    QScroller::grabGesture(viewport, QScroller::TouchGesture);
     viewport->installEventFilter(this);
 
-    QPalette palette = viewport->palette();
-    palette.setColor(viewport->backgroundRole(), QColor(Qt::transparent));
-    viewport->setPalette(palette);
-
-    layout->addWidget(m_nameLabel);
-    layout->addWidget(new KSeparator(this));
     layout->addWidget(m_preview);
     layout->addWidget(m_phononWidget);
-    layout->addWidget(m_previewSeparator);
-    if (m_metaDataWidget != 0) {
-        layout->addWidget(m_metaDataWidget);
-        layout->addWidget(m_metaDataSeparator);
-    }
-    layout->addWidget(m_metaTextArea);
-    parent->setLayout(layout);
+    layout->addWidget(m_nameLabel);
+    layout->addWidget(new KSeparator());
+    layout->addWidget(m_configureLabel);
+    layout->addWidget(m_metaDataArea);
+    layout->addWidget(m_configureButtons);
+
+    grabGesture(Qt::TapAndHoldGesture);
 }
 
 InformationPanelContent::~InformationPanelContent()
 {
-    InformationPanelSettings::self()->writeConfig();
+    InformationPanelSettings::self()->save();
 }
 
 void InformationPanelContent::showItem(const KFileItem& item)
 {
-    m_pendingPreview = false;
-
-    const KUrl itemUrl = item.url();
-    if (!applyPlace(itemUrl)) {
-        // try to get a preview pixmap from the item...
-        m_pendingPreview = true;
-
-        // Mark the currently shown preview as outdated. This is done
-        // with a small delay to prevent a flickering when the next preview
-        // can be shown within a short timeframe. This timer is not started
-        // for directories, as directory previews might fail and return the
-        // same icon.
-        if (!item.isDir()) {
-            m_outdatedPreviewTimer->start();
-        }
-
-        KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << item,
-                                                m_preview->width(),
-                                                m_preview->height(),
-                                                0,
-                                                0,
-                                                false,
-                                                true);
+    // compares item entries, comparing items only compares urls
+    if (m_item.entry() != item.entry()) {
+        m_item = item;
+        m_preview->stopAnimatedImage();
+        refreshMetaData();
+    }
 
-        connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
-                this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
-        connect(job, SIGNAL(failed(const KFileItem&)),
-                this, SLOT(showIcon(const KFileItem&)));
+    refreshPreview();
+}
 
-        setNameLabelText(itemUrl.fileName());
+void InformationPanelContent::refreshPixmapView()
+{
+    // If there is a preview job, kill it to prevent that we have jobs for
+    // multiple items running, and thus a race condition (bug 250787).
+    if (m_previewJob) {
+        m_previewJob->kill();
     }
 
-    m_metaTextLabel->clear();
-    if (item.isDir()) {
-        m_metaTextLabel->add(i18nc("@label", "Type:"), i18nc("@label", "Folder"));
-        m_metaTextLabel->add(i18nc("@label", "Modified:"), item.timeString());
-    } else {
-        m_metaTextLabel->add(i18nc("@label", "Type:"), item.mimeComment());
-
-        m_metaTextLabel->add(i18nc("@label", "Size:"), KIO::convertSize(item.size()));
-        m_metaTextLabel->add(i18nc("@label", "Modified:"), item.timeString());
-
-#ifdef HAVE_NEPOMUK
-        KConfig config("kmetainformationrc", KConfig::NoGlobals);
-        KConfigGroup settings = config.group("Show");
-        initMetaInfoSettings(settings);
-
-        Nepomuk::Resource res(item.url());
-
-        QHash<QUrl, Nepomuk::Variant> properties = res.properties();
-        QHash<QUrl, Nepomuk::Variant>::const_iterator it = properties.constBegin();
-        while (it != properties.constEnd()) {
-            Nepomuk::Types::Property prop(it.key());
-            if (settings.readEntry(prop.name(), true)) {
-                // TODO #1: use Nepomuk::formatValue(res, prop) if available
-                // instead of it.value().toString()
-                // TODO #2: using tunedLabel() is a workaround for KDE 4.3 until
-                // we get translated labels
-                m_metaTextLabel->add(tunedLabel(prop.label()) + ':', it.value().toString());
-            }
-            ++it;
-        }
-#endif
+    // try to get a preview pixmap from the item...
+
+    // Mark the currently shown preview as outdated. This is done
+    // with a small delay to prevent a flickering when the next preview
+    // can be shown within a short timeframe.
+    m_outdatedPreviewTimer->start();
+
+    const KConfigGroup globalConfig(KSharedConfig::openConfig(), "PreviewSettings");
+    const QStringList plugins = globalConfig.readEntry("Plugins", KIO::PreviewJob::defaultPlugins());
+    m_previewJob = new KIO::PreviewJob(KFileItemList() << m_item,
+                                       QSize(m_preview->width(), m_preview->height()),
+                                       &plugins);
+    m_previewJob->setScaleType(KIO::PreviewJob::Unscaled);
+    m_previewJob->setIgnoreMaximumSize(m_item.isLocalFile());
+    if (m_previewJob->uiDelegate()) {
+        KJobWidgets::setWindow(m_previewJob, this);
     }
 
-    if (m_metaDataWidget != 0) {
-        m_metaDataWidget->setFile(item.targetUrl());
+    connect(m_previewJob.data(), &KIO::PreviewJob::gotPreview,
+            this, &InformationPanelContent::showPreview);
+    connect(m_previewJob.data(), &KIO::PreviewJob::failed,
+            this, &InformationPanelContent::showIcon);
+}
+
+void InformationPanelContent::refreshPreview()
+{
+    // If there is a preview job, kill it to prevent that we have jobs for
+    // multiple items running, and thus a race condition (bug 250787).
+    if (m_previewJob) {
+        m_previewJob->kill();
     }
 
-    if (InformationPanelSettings::showPreview()) {
-        const QString mimeType = item.mimetype();
-        const bool usePhonon = Phonon::BackendCapabilities::isMimeTypeAvailable(mimeType) &&
-                               (mimeType != "image/png");  // TODO: workaround, as Phonon
-                                                           // thinks it supports PNG images
-        if (usePhonon) {
-            m_phononWidget->show();
-            PhononWidget::Mode mode = mimeType.startsWith(QLatin1String("video"))
-                                      ? PhononWidget::Video
-                                      : PhononWidget::Audio;
-            m_phononWidget->setMode(mode);
-            m_phononWidget->setUrl(item.url());
-            if ((mode == PhononWidget::Video) && m_preview->isVisible()) {
-                m_phononWidget->setVideoSize(m_preview->size());
-            }
-        } else {
+    m_preview->setCursor(Qt::ArrowCursor);
+    setNameLabelText(m_item.text());
+    if (InformationPanelSettings::previewsShown()) {
+
+        const QUrl itemUrl = m_item.url();
+        const bool isSearchUrl = itemUrl.scheme().contains(QLatin1String("search")) && m_item.localPath().isEmpty();
+        if (isSearchUrl) {
+            m_preview->show();
             m_phononWidget->hide();
-            m_preview->setVisible(true);
+
+            // in the case of a search-URL the URL is not readable for humans
+            // (at least not useful to show in the Information Panel)
+            m_preview->setPixmap(
+                QIcon::fromTheme(QStringLiteral("baloo")).pixmap(m_preview->height(), m_preview->width())
+            );
+        } else {
+
+            refreshPixmapView();
+
+            const QString mimeType = m_item.mimetype();
+            const bool isAnimatedImage = m_preview->isAnimatedMimeType(mimeType);
+            m_isVideo = !isAnimatedImage && mimeType.startsWith(QLatin1String("video/"));
+            bool usePhonon = m_isVideo || mimeType.startsWith(QLatin1String("audio/"));
+
+            if (usePhonon) {
+                // change the cursor of the preview
+                m_preview->setCursor(Qt::PointingHandCursor);
+                m_preview->installEventFilter(m_phononWidget);
+                m_phononWidget->show();
+
+                // if the video is playing, has been paused or stopped
+                // we don't need to update the preview/phonon widget states
+                // unless the previewed file has changed,
+                // or the setting previewshown has changed
+                if ((m_phononWidget->state() != Phonon::State::PlayingState &&
+                     m_phononWidget->state() != Phonon::State::PausedState &&
+                     m_phononWidget->state() != Phonon::State::StoppedState) ||
+                        m_item.targetUrl() != m_phononWidget->url() ||
+                        (!m_preview->isVisible() &&! m_phononWidget->isVisible())) {
+
+                    if (InformationPanelSettings::previewsAutoPlay() && m_isVideo) {
+                        // hides the preview now to avoid flickering when the autoplay video starts
+                        m_preview->hide();
+                    } else {
+                        // the video won't play before the preview is displayed
+                        m_preview->show();
+                    }
+
+                    m_phononWidget->setUrl(m_item.targetUrl(), m_isVideo ? PhononWidget::MediaKind::Video : PhononWidget::MediaKind::Audio);
+                    adjustWidgetSizes(parentWidget()->width());
+                }
+            } else {
+                if (isAnimatedImage) {
+                    m_preview->setAnimatedImageFileName(itemUrl.toLocalFile());
+                }
+                // When we don't need it, hide the phonon widget first to avoid flickering
+                m_phononWidget->hide();
+                m_preview->show();
+                m_preview->removeEventFilter(m_phononWidget);
+                m_phononWidget->clearUrl();
+            }
         }
     } else {
+        m_preview->stopAnimatedImage();
+        m_preview->hide();
         m_phononWidget->hide();
     }
+}
 
-    m_item = item;
+void InformationPanelContent::configureShownProperties()
+{
+    m_configureLabel->setVisible(true);
+    m_configureButtons->setVisible(true);
+    m_metaDataWidget->setConfigurationMode(Baloo::ConfigurationMode::ReStart);
+}
+
+void InformationPanelContent::refreshMetaData()
+{
+    m_metaDataWidget->setDateFormat(static_cast<Baloo::DateFormats>(InformationPanelSettings::dateFormat()));
+    m_metaDataWidget->show();
+    m_metaDataWidget->setItems(KFileItemList() << m_item);
 }
 
 void InformationPanelContent::showItems(const KFileItemList& items)
 {
-    m_pendingPreview = false;
-
-    KIconLoader iconLoader;
-    QPixmap icon = iconLoader.loadIcon("dialog-information",
-                                       KIconLoader::NoGroup,
-                                       KIconLoader::SizeEnormous);
-    m_preview->setPixmap(icon);
-    setNameLabelText(i18ncp("@info", "%1 item selected", "%1 items selected", items.count()));
-
-    if (m_metaDataWidget != 0) {
-        KUrl::List urls;
-        foreach (const KFileItem& item, items) {
-            urls.append(item.targetUrl());
-        }
-        m_metaDataWidget->setFiles(urls);
+    // If there is a preview job, kill it to prevent that we have jobs for
+    // multiple items running, and thus a race condition (bug 250787).
+    if (m_previewJob) {
+        m_previewJob->kill();
     }
 
-    quint64 totalSize = 0;
-    foreach (const KFileItem& item, items) {
-        // Only count the size of files, not dirs to match what
-        // DolphinViewContainer::selectionStatusBarText() does.
-        if (!item.isDir() && !item.isLink()) {
-            totalSize += item.size();
-        }
-    }
-    m_metaTextLabel->clear();
-    m_metaTextLabel->add(i18nc("@label", "Total size:"), KIO::convertSize(totalSize));
+    m_preview->stopAnimatedImage();
+
+    m_preview->setPixmap(
+        QIcon::fromTheme(QStringLiteral("dialog-information")).pixmap(m_preview->height(), m_preview->width())
+    );
+    setNameLabelText(i18ncp("@label", "%1 item selected", "%1 items selected", items.count()));
+
+    m_metaDataWidget->setItems(items);
 
     m_phononWidget->hide();
 
@@ -312,221 +313,148 @@ void InformationPanelContent::showItems(const KFileItemList& items)
 
 bool InformationPanelContent::eventFilter(QObject* obj, QEvent* event)
 {
-    if (event->type() == QEvent::Resize) {
+    switch (event->type()) {
+    case QEvent::Resize: {
         QResizeEvent* resizeEvent = static_cast<QResizeEvent*>(event);
-        if (obj == m_metaTextArea->viewport()) {
+        if (obj == m_metaDataArea->viewport()) {
             // The size of the meta text area has changed. Adjust the fixed
             // width in a way that no horizontal scrollbar needs to be shown.
-            m_metaTextLabel->setFixedWidth(resizeEvent->size().width());
+            m_metaDataWidget->setFixedWidth(resizeEvent->size().width());
         } else if (obj == parent()) {
-            // If the text inside the name label or the info label cannot
-            // get wrapped, then the maximum width of the label is increased
-            // so that the width of the information panel gets increased.
-            // To prevent this, the maximum width is adjusted to
-            // the current width of the panel.
-            const int maxWidth = resizeEvent->size().width() - KDialog::spacingHint() * 4;
-            m_nameLabel->setMaximumWidth(maxWidth);
-
-            // The metadata widget also contains a text widget which may return
-            // a large preferred width.
-            if (m_metaDataWidget != 0) {
-                m_metaDataWidget->setMaximumWidth(maxWidth);
-            }
-
-            // try to increase the preview as large as possible
-            m_preview->setSizeHint(QSize(maxWidth, maxWidth));
-
-            if (m_phononWidget->isVisible() && (m_phononWidget->mode() == PhononWidget::Video)) {
-                // assure that the size of the video player is the same as the preview size
-                m_phononWidget->setVideoSize(QSize(maxWidth, maxWidth));
-            }
+            adjustWidgetSizes(resizeEvent->size().width());
         }
-    }
-    return Panel::eventFilter(obj, event);
-}
-
-void InformationPanelContent::configureSettings()
-{
-#ifdef HAVE_NEPOMUK
-    if (m_item.isNull()) {
-        return;
+        break;
     }
 
-    KMenu popup(this);
-
-    QAction* previewAction = popup.addAction(i18nc("@action:inmenu", "Preview"));
-    previewAction->setIcon(KIcon("view-preview"));
-    previewAction->setCheckable(true);
-    previewAction->setChecked(InformationPanelSettings::showPreview());
-
-    const bool metaDataAvailable = MetaDataWidget::metaDataAvailable();
-
-    QAction* ratingAction = popup.addAction(i18nc("@action:inmenu", "Rating"));
-    ratingAction->setIcon(KIcon("rating"));
-    ratingAction->setCheckable(true);
-    ratingAction->setChecked(InformationPanelSettings::showRating());
-    ratingAction->setEnabled(metaDataAvailable);
-
-    QAction* commentAction = popup.addAction(i18nc("@action:inmenu", "Comment"));
-    commentAction->setIcon(KIcon("text-plain"));
-    commentAction->setCheckable(true);
-    commentAction->setChecked(InformationPanelSettings::showComment());
-    commentAction->setEnabled(metaDataAvailable);
-
-    QAction* tagsAction = popup.addAction(i18nc("@action:inmenu", "Tags"));
-    tagsAction->setCheckable(true);
-    tagsAction->setChecked(InformationPanelSettings::showTags());
-    tagsAction->setEnabled(metaDataAvailable);
-
-    KConfig config("kmetainformationrc", KConfig::NoGlobals);
-    KConfigGroup settings = config.group("Show");
-    initMetaInfoSettings(settings);
-
-    QList<QAction*> actions;
-
-    // Get all meta information labels that are available for
-    // the currently shown file item and add them to the popup.
-    Nepomuk::Resource res(m_item.url());
-    QHash<QUrl, Nepomuk::Variant> properties = res.properties();
-    QHash<QUrl, Nepomuk::Variant>::const_iterator it = properties.constBegin();
-    while (it != properties.constEnd()) {
-        Nepomuk::Types::Property prop(it.key());
-        const QString key = prop.name();
-
-        // Meta information provided by Nepomuk that is already
-        // available from KFileItem should not be configurable.
-        bool skip = (key == "fileExtension") ||
-                    (key == "name") ||
-                    (key == "sourceModified") ||
-                    (key == "size") ||
-                    (key == "mime type");
-        if (!skip) {
-            // Check whether there is already a meta information
-            // having the same label. In this case don't show it
-            // twice in the menu.
-            foreach (const QAction* action, actions) {
-                if (action->data().toString() == key) {
-                    skip = true;
-                    break;
-                }
-            }
-        }
+    case QEvent::Polish:
+        adjustWidgetSizes(parentWidget()->width());
+        break;
 
-        if (!skip) {
-            const QString label = tunedLabel(prop.label());
-            QAction* action = new QAction(label, &popup);
-            action->setCheckable(true);
-            action->setChecked(settings.readEntry(key, true));
-            action->setData(key);
-            actions.append(action);
-        }
+    case QEvent::FontChange:
+        m_metaDataWidget->setFont(QFontDatabase::systemFont(QFontDatabase::SmallestReadableFont));
+        break;
 
-        ++it;
+    default:
+        break;
     }
 
-    if (!actions.isEmpty()) {
-        popup.addSeparator();
+    return QWidget::eventFilter(obj, event);
+}
 
-        // add all items alphabetically sorted to the popup
-        qSort(actions.begin(), actions.end(), lessThan);
-        foreach (QAction* action, actions) {
-            popup.addAction(action);
-        }
+bool InformationPanelContent::event(QEvent* event)
+{
+    if (event->type() == QEvent::Gesture) {
+        gestureEvent(static_cast<QGestureEvent*>(event));
+        return true;
     }
+    return QWidget::event(event);
+}
 
-    // Open the popup and adjust the settings for the
-    // selected action.
-    QAction* action = popup.exec(QCursor::pos());
-    if (action == 0) {
-        return;
+bool InformationPanelContent::gestureEvent(QGestureEvent* event)
+{
+    if (!underMouse()) {
+        return false;
     }
 
-    const bool isChecked = action->isChecked();
-    if (action == previewAction) {
-        m_preview->setVisible(isChecked);
-        m_previewSeparator->setVisible(isChecked);
-        InformationPanelSettings::setShowPreview(isChecked);
-    } else if (action == ratingAction) {
-        m_metaDataWidget->setRatingVisible(isChecked);
-        InformationPanelSettings::setShowRating(isChecked);
-    } else if (action == commentAction) {
-        m_metaDataWidget->setCommentVisible(isChecked);
-        InformationPanelSettings::setShowComment(isChecked);
-    } else if (action == tagsAction) {
-        m_metaDataWidget->setTagsVisible(isChecked);
-        InformationPanelSettings::setShowTags(isChecked);
-    } else {
-        settings.writeEntry(action->data().toString(), action->isChecked());
-        settings.sync();
-    }
+    QTapAndHoldGesture* tap = static_cast<QTapAndHoldGesture*>(event->gesture(Qt::TapAndHoldGesture));
 
-    if (m_metaDataWidget != 0) {
-        const bool visible = m_metaDataWidget->isRatingVisible() ||
-                             m_metaDataWidget->isCommentVisible() ||
-                             m_metaDataWidget->areTagsVisible();
-        m_metaDataSeparator->setVisible(visible);
+    if (tap) {
+        if (tap->state() == Qt::GestureFinished) {
+            Q_EMIT contextMenuRequested(tap->position().toPoint());
+        }
+        event->accept();
+        return true;
     }
-
-    showItem(m_item);
-#endif
+    return false;
 }
 
 void InformationPanelContent::showIcon(const KFileItem& item)
 {
     m_outdatedPreviewTimer->stop();
-    m_pendingPreview = false;
-    if (!applyPlace(item.url())) {
-        m_preview->setPixmap(item.pixmap(KIconLoader::SizeEnormous));
-    }
+    QPixmap pixmap = QIcon::fromTheme(item.iconName()).pixmap(m_preview->height(), m_preview->width());
+    KIconLoader::global()->drawOverlays(item.overlays(), pixmap, KIconLoader::Desktop);
+    m_preview->setPixmap(pixmap);
 }
 
 void InformationPanelContent::showPreview(const KFileItem& item,
-                                  const QPixmap& pixmap)
+                                          const QPixmap& pixmap)
 {
     m_outdatedPreviewTimer->stop();
 
-    Q_UNUSED(item);
-    if (m_pendingPreview) {
-        m_preview->setPixmap(pixmap);
-        m_pendingPreview = false;
+    QPixmap p = pixmap;
+    KIconLoader::global()->drawOverlays(item.overlays(), p, KIconLoader::Desktop);
+
+    if (m_isVideo) {
+        // adds a play arrow
+
+        // compute relative pixel positions
+        const int zeroX = static_cast<int>((p.width() / 2 - PLAY_ARROW_SIZE / 2) / pixmap.devicePixelRatio());
+        const int zeroY = static_cast<int>((p.height() / 2 - PLAY_ARROW_SIZE / 2) / pixmap.devicePixelRatio());
+
+        QPolygon arrow;
+        arrow << QPoint(zeroX, zeroY);
+        arrow << QPoint(zeroX, zeroY + PLAY_ARROW_SIZE);
+        arrow << QPoint(zeroX + PLAY_ARROW_SIZE, zeroY + PLAY_ARROW_SIZE / 2);
+
+        QPainterPath path;
+        path.addPolygon(arrow);
+
+        QLinearGradient gradient(QPointF(zeroX, zeroY),
+                                 QPointF(zeroX + PLAY_ARROW_SIZE,zeroY + PLAY_ARROW_SIZE));
+
+        QColor whiteColor = Qt::white;
+        QColor blackColor = Qt::black;
+        gradient.setColorAt(0, whiteColor);
+        gradient.setColorAt(1, blackColor);
+
+        QBrush brush(gradient);
+
+        QPainter painter(&p);
+
+        QPen pen(blackColor, PLAY_ARROW_BORDER_SIZE, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin);
+        painter.setPen(pen);
+
+        painter.setRenderHint(QPainter::Antialiasing);
+        painter.drawPolygon(arrow);
+        painter.fillPath(path, brush);
     }
-}
 
-void InformationPanelContent::markOutdatedPreview()
-{
-    KIconEffect iconEffect;
-    QPixmap disabledPixmap = iconEffect.apply(m_preview->pixmap(),
-                                              KIconLoader::Desktop,
-                                              KIconLoader::DisabledState);
-    m_preview->setPixmap(disabledPixmap);
+    m_preview->setPixmap(p);
 }
 
-void InformationPanelContent::slotPlayingStarted()
+void InformationPanelContent::markOutdatedPreview()
 {
-    m_preview->setVisible(m_phononWidget->mode() != PhononWidget::Video);
+    if (m_item.isDir()) {
+        // directory preview can be long
+        // but since we always have icons to display
+        // use it until the preview is done
+        showIcon(m_item);
+    } else {
+        KIconEffect *iconEffect = KIconLoader::global()->iconEffect();
+        QPixmap disabledPixmap = iconEffect->apply(m_preview->pixmap(),
+                                                   KIconLoader::Desktop,
+                                                   KIconLoader::DisabledState);
+        m_preview->setPixmap(disabledPixmap);
+    }
 }
 
-void InformationPanelContent::slotPlayingStopped()
+KFileItemList InformationPanelContent::items()
 {
-    m_preview->setVisible(true);
+    return m_metaDataWidget->items();
 }
 
-bool InformationPanelContent::applyPlace(const KUrl& url)
+void InformationPanelContent::slotHasVideoChanged(bool hasVideo)
 {
-    KFilePlacesModel* placesModel = DolphinSettings::instance().placesModel();
-    int count = placesModel->rowCount();
-
-    for (int i = 0; i < count; ++i) {
-        QModelIndex index = placesModel->index(i, 0);
-
-        if (url.equals(placesModel->url(index), KUrl::CompareWithoutTrailingSlash)) {
-            setNameLabelText(placesModel->text(index));
-            m_preview->setPixmap(placesModel->icon(index).pixmap(128, 128));
-            return true;
-        }
+    m_preview->setVisible(InformationPanelSettings::previewsShown() && !hasVideo);
+    if (m_preview->isVisible() && m_preview->size().width() != m_preview->pixmap().size().width()) {
+        // in case the information panel has been resized when the preview was not displayed
+        // we need to refresh its content
+        refreshPixmapView();
     }
+}
 
-    return false;
+void InformationPanelContent::setPreviewAutoPlay(bool autoPlay) {
+    m_phononWidget->setAutoPlay(autoPlay);
 }
 
 void InformationPanelContent::setNameLabelText(const QString& text)
@@ -534,19 +462,21 @@ void InformationPanelContent::setNameLabelText(const QString& text)
     QTextOption textOption;
     textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 
-    QTextLayout textLayout(text);
+    const QString processedText = Qt::mightBeRichText(text) ? text : KStringHandler::preProcessWrap(text);
+
+    QTextLayout textLayout(processedText);
     textLayout.setFont(m_nameLabel->font());
     textLayout.setTextOption(textOption);
 
     QString wrappedText;
-    wrappedText.reserve(text.length());
+    wrappedText.reserve(processedText.length());
 
     // wrap the text to fit into the width of m_nameLabel
     textLayout.beginLayout();
     QTextLine line = textLayout.createLine();
     while (line.isValid()) {
         line.setLineWidth(m_nameLabel->width());
-        wrappedText += text.mid(line.textStart(), line.textLength());
+        wrappedText += processedText.midRef(line.textStart(), line.textLength());
 
         line = textLayout.createLine();
         if (line.isValid()) {
@@ -558,52 +488,26 @@ void InformationPanelContent::setNameLabelText(const QString& text)
     m_nameLabel->setText(wrappedText);
 }
 
-void InformationPanelContent::initMetaInfoSettings(KConfigGroup& group)
+void InformationPanelContent::adjustWidgetSizes(int width)
 {
-    if (!group.readEntry("initialized", false)) {
-        // The resource file is read the first time. Assure
-        // that some meta information is disabled per default.
-
-        static const char* disabledProperties[] = {
-            "asText", "contentSize", "depth", "fileExtension",
-            "fileName", "fileSize", "isPartOf", "mimetype", "name",
-            "parentUrl", "plainTextContent", "sourceModified",
-            "size", "url",
-            0 // mandatory last entry
-        };
-
-        int i = 0;
-        while (disabledProperties[i] != 0) {
-            group.writeEntry(disabledProperties[i], false);
-            ++i;
-        }
-
-        // mark the group as initialized
-        group.writeEntry("initialized", true);
+    // If the text inside the name label or the info label cannot
+    // get wrapped, then the maximum width of the label is increased
+    // so that the width of the information panel gets increased.
+    // To prevent this, the maximum width is adjusted to
+    // the current width of the panel.
+    const int maxWidth = width - style()->layoutSpacing(QSizePolicy::DefaultType, QSizePolicy::DefaultType, Qt::Horizontal) * 4;
+    m_nameLabel->setMaximumWidth(maxWidth);
+
+    // The metadata widget also contains a text widget which may return
+    // a large preferred width.
+    m_metaDataWidget->setMaximumWidth(maxWidth);
+
+    // try to increase the preview as large as possible
+    m_preview->setSizeHint(QSize(maxWidth, maxWidth));
+
+    if (m_phononWidget->isVisible()) {
+        // assure that the size of the video player is the same as the preview size
+        m_phononWidget->setVideoSize(QSize(maxWidth, maxWidth));
     }
 }
 
-QString InformationPanelContent::tunedLabel(const QString& label) const
-{
-    QString tunedLabel;
-    const int labelLength = label.length();
-    if (labelLength > 0) {
-        tunedLabel.reserve(labelLength);
-        tunedLabel = label[0].toUpper();
-        for (int i = 1; i < labelLength; ++i) {
-            if (label[i].isUpper() && !label[i - 1].isSpace() && !label[i - 1].isUpper()) {
-                tunedLabel += ' ';
-                tunedLabel += label[i].toLower();
-            } else {
-                tunedLabel += label[i];
-            }
-        }
-    }
-    return tunedLabel;
-}
-
-void InformationPanelContent::init()
-{
-}
-
-#include "informationpanelcontent.moc"