X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/328de208710faebaa275e2ef8ddb28a78ea5a2f0..148282e2d856b47ceb191eeef4c834118c8cdffd:/src/infosidebarpage.cpp

diff --git a/src/infosidebarpage.cpp b/src/infosidebarpage.cpp
index f08649ac2..64d5d44c2 100644
--- a/src/infosidebarpage.cpp
+++ b/src/infosidebarpage.cpp
@@ -18,250 +18,331 @@
  ***************************************************************************/
 
 #include "infosidebarpage.h"
-#include <assert.h>
-
-#include <qlayout.h>
-#include <qpixmap.h>
-#include <qlabel.h>
-#include <qtimer.h>
-#include <qpushbutton.h>
-
-#include <q3vgroupbox.h>
-#include <q3popupmenu.h>
-#include <qpainter.h>
-#include <qfontmetrics.h>
-#include <q3grid.h>
-#include <q3hgroupbox.h>
-//Added by qt3to4:
-#include <Q3ValueList>
-#include <QEvent>
-#include <Q3VBoxLayout>
 
-#include <kbookmarkmanager.h>
+#include <config-nepomuk.h>
+
+#include <kdialog.h>
+#include <kdirnotify.h>
+#include <kfileplacesmodel.h>
 #include <klocale.h>
 #include <kstandarddirs.h>
 #include <kio/previewjob.h>
 #include <kfileitem.h>
-#include <kdialog.h>
 #include <kglobalsettings.h>
 #include <kfilemetainfo.h>
-#include <kvbox.h>
+#include <kiconeffect.h>
+#include <kseparator.h>
+#include <kiconloader.h>
+
+#include <QEvent>
+#include <QInputDialog>
+#include <QLabel>
+#include <QPainter>
+#include <QPixmap>
+#include <QResizeEvent>
+#include <QTextLayout>
+#include <QTextLine>
+#include <QTimer>
+#include <QVBoxLayout>
 
-#include "dolphinmainwindow.h"
-#include "pixmapviewer.h"
 #include "dolphinsettings.h"
+#include "metadatawidget.h"
+#include "metatextlabel.h"
+#include "pixmapviewer.h"
 
-InfoSidebarPage::InfoSidebarPage(DolphinMainWindow* mainWindow, QWidget* parent) :
-    SidebarPage(mainWindow, parent),
-    m_multipleSelection(false),
+InfoSidebarPage::InfoSidebarPage(QWidget* parent) :
+    SidebarPage(parent),
+    m_initialized(false),
     m_pendingPreview(false),
-    m_timer(0),
+    m_infoTimer(0),
+    m_outdatedPreviewTimer(0),
+    m_shownUrl(),
+    m_urlCandidate(),
+    m_fileItem(),
+    m_selection(),
+    m_nameLabel(0),
     m_preview(0),
-    m_name(0),
-    m_currInfoLineIdx(0),
-    m_infoGrid(0),
-    m_actionBox(0)
+    m_metaDataWidget(0),
+    m_metaTextLabel(0)
 {
-    const int spacing = KDialog::spacingHint();
-
-    m_timer = new QTimer(this);
-    connect(m_timer, SIGNAL(timeout()),
-            this, SLOT(slotTimeout()));
-
-    Q3VBoxLayout* layout = new Q3VBoxLayout(this);
-    layout->setSpacing(spacing);
-
-    // preview
-    m_preview = new PixmapViewer(this);
-    m_preview->setMinimumWidth(K3Icon::SizeEnormous);
-    m_preview->setFixedHeight(K3Icon::SizeEnormous);
-
-    // name
-    m_name = new QLabel(this);
-    m_name->setTextFormat(Qt::RichText);
-    m_name->setAlignment(m_name->alignment() | Qt::AlignHCenter);
-    QFontMetrics fontMetrics(m_name->font());
-    m_name->setMinimumHeight(fontMetrics.height() * 3);
-    m_name->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Maximum);
-
-    QWidget* sep1 = new Q3HGroupBox(this);  // TODO: check whether default widget exist for this?
-    sep1->setFixedHeight(1);
-
-    // general information
-    m_infoGrid = new Q3Grid(2, this);
-    m_infoGrid->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
-
-    QWidget* sep2 = new Q3HGroupBox(this);  // TODO: check whether default widget exist for this?
-    sep2->setFixedHeight(1);
-
-    // actions
-    m_actionBox = new KVBox(this);
-    m_actionBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
-
-    // Add a dummy widget with no restriction regarding a vertical resizing.
-    // This assures that information is always top aligned.
-    QWidget* dummy = new QWidget(this);
-
-    layout->addItem(new QSpacerItem(spacing, spacing, QSizePolicy::Preferred, QSizePolicy::Fixed));
-    layout->addWidget(m_preview);
-    layout->addWidget(m_name);
-    layout->addWidget(sep1);
-    layout->addWidget(m_infoGrid);
-    layout->addWidget(sep2);
-    layout->addWidget(m_actionBox);
-    layout->addWidget(dummy);
-
-    connect(mainWindow, SIGNAL(selectionChanged()),
-            this, SLOT(showItemInfo()));
-
-    connectToActiveView();
 }
 
 InfoSidebarPage::~InfoSidebarPage()
 {
 }
 
-void InfoSidebarPage::activeViewChanged()
+QSize InfoSidebarPage::sizeHint() const
 {
-    connectToActiveView();
+    QSize size = SidebarPage::sizeHint();
+    size.setWidth(minimumSizeHint().width());
+    return size;
 }
 
-void InfoSidebarPage::requestDelayedItemInfo(const KUrl& url)
+void InfoSidebarPage::setUrl(const KUrl& url)
 {
-    cancelRequest();
+    SidebarPage::setUrl(url);
+    if (url.isValid() && !isEqualToShownUrl(url)) {
+        if (isVisible()) {
+            cancelRequest();
+            m_shownUrl = url;
+            showItemInfo();
+        } else {
+            m_shownUrl = url;
+        }
+    }
+}
 
-    if (!url.isEmpty() && !m_multipleSelection) {
-        m_urlCandidate = url;
-        m_timer->setSingleShot(true);
-        m_timer->start(300);
+void InfoSidebarPage::setSelection(const KFileItemList& selection)
+{
+    if (!isVisible()) {
+        return;
+    }
+
+    if ((selection.count() == 0) && (m_selection.count() == 0)) {
+        // The selection has not really changed, only the current index.
+        // QItemSelectionModel emits a signal in this case and it is less
+        // expensive doing the check this way instead of patching
+        // DolphinView::emitSelectionChanged().
+        return;
+    }
+
+    m_selection = selection;
+
+    const int count = selection.count();
+    if (count == 0) {
+        if (!isEqualToShownUrl(url())) {
+            m_shownUrl = url();
+            showItemInfo();
+        }
+    } else {
+        if ((count == 1) && !selection.first().url().isEmpty()) {
+            m_urlCandidate = selection.first().url();
+        }
+        m_infoTimer->start();
     }
 }
 
-void InfoSidebarPage::requestItemInfo(const KUrl& url)
+void InfoSidebarPage::requestDelayedItemInfo(const KFileItem& item)
 {
+    if (!isVisible()) {
+        return;
+    }
+
     cancelRequest();
 
-    if (!url.isEmpty() && !m_multipleSelection) {
-        m_shownUrl = url;
+    m_fileItem = KFileItem();
+    if (item.isNull()) {
+        // The cursor is above the viewport. If files are selected,
+        // show information regarding the selection.
+        if (m_selection.size() > 0) {
+            m_pendingPreview = false;
+            m_infoTimer->start();
+        }
+    } else {
+        const KUrl url = item.url();
+        if (url.isValid() && !isEqualToShownUrl(url)) {
+            m_urlCandidate = item.url();
+            m_fileItem = item;
+            m_infoTimer->start();
+        }    
+    }
+}
+
+void InfoSidebarPage::showEvent(QShowEvent* event)
+{
+    SidebarPage::showEvent(event);
+    if (!event->spontaneous()) {
+        if (!m_initialized) {
+            // do a delayed initialization so that no performance
+            // penalty is given when Dolphin is started with a closed
+            // Information Panel
+            init();
+        }
         showItemInfo();
     }
 }
 
-void InfoSidebarPage::showItemInfo()
+void InfoSidebarPage::resizeEvent(QResizeEvent* event)
 {
-    cancelRequest();
+    if (isVisible()) {
+        // 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 sidebar gets increased.
+        // To prevent this, the maximum width is adjusted to
+        // the current width of the sidebar.
+        const int maxWidth = event->size().width() - KDialog::spacingHint() * 4;
+        m_nameLabel->setMaximumWidth(maxWidth);
+
+        // try to increase the preview as large as possible
+        m_preview->setSizeHint(QSize(maxWidth, maxWidth));
+        m_urlCandidate = m_shownUrl; // reset the URL candidate if a resizing is done
+        m_infoTimer->start();
+    }
 
-    m_multipleSelection = false;
+    SidebarPage::resizeEvent(event);
+}
 
-    // show the preview...
-    DolphinView* view = mainWindow()->activeView();
-    const KFileItemList selectedItems = view->selectedItems();
-    if (selectedItems.count() > 1) {
-        m_multipleSelection = true;
+void InfoSidebarPage::showItemInfo()
+{
+    if (!isVisible()) {
+        return;
     }
 
-    if (m_multipleSelection) {
+    cancelRequest();
+
+    if (showMultipleSelectionInfo()) {
         KIconLoader iconLoader;
-        QPixmap icon = iconLoader.loadIcon("exec",
-                                           K3Icon::NoGroup,
-                                           K3Icon::SizeEnormous);
+        QPixmap icon = iconLoader.loadIcon("dialog-information",
+                                           KIconLoader::NoGroup,
+                                           KIconLoader::SizeEnormous);
         m_preview->setPixmap(icon);
-        m_name->setText(i18n("%1 items selected",selectedItems.count()));
-    }
-    else if (!applyBookmark()) {
-        // try to get a preview pixmap from the item...
-        KUrl::List list;
-        list.append(m_shownUrl);
-
-        m_pendingPreview = true;
-        m_preview->setPixmap(QPixmap());
-
-        KIO::PreviewJob* job = KIO::filePreview(list,
-                                                m_preview->width(),
-                                                K3Icon::SizeEnormous);
-        connect(job, SIGNAL(gotPreview(const KFileItem*, const QPixmap&)),
-                this, SLOT(gotPreview(const KFileItem*, const QPixmap&)));
-        connect(job, SIGNAL(failed(const KFileItem*)),
-                this, SLOT(slotPreviewFailed(const KFileItem*)));
-
-        QString text("<b>");
-        text.append(m_shownUrl.fileName());
-        text.append("</b>");
-        m_name->setText(text);
+        setNameLabelText(i18ncp("@info", "%1 item selected", "%1 items selected",  m_selection.count()));
+        m_shownUrl = KUrl();
+    } else {
+        const KFileItem item = fileItem();
+        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.
+            m_outdatedPreviewTimer->start();
+
+            KIO::PreviewJob* job = KIO::filePreview(KUrl::List() << itemUrl,
+                                                    m_preview->width(),
+                                                    m_preview->height(),
+                                                    0,
+                                                    0,
+                                                    true,
+                                                    false);
+            job->setIgnoreMaximumSize(true);
+
+            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&)));
+
+            setNameLabelText(itemUrl.fileName());
+        }
     }
 
-    createMetaInfo();
-    insertActions();
+    showMetaInfo();
 }
 
-void InfoSidebarPage::slotTimeout()
+void InfoSidebarPage::slotInfoTimeout()
 {
     m_shownUrl = m_urlCandidate;
     showItemInfo();
 }
 
-void InfoSidebarPage::slotPreviewFailed(const KFileItem* item)
+void InfoSidebarPage::markOutdatedPreview()
 {
+    KIconEffect iconEffect;
+    QPixmap disabledPixmap = iconEffect.apply(m_preview->pixmap(),
+                                              KIconLoader::Desktop,
+                                              KIconLoader::DisabledState);
+    m_preview->setPixmap(disabledPixmap);
+}
+
+void InfoSidebarPage::showIcon(const KFileItem& item)
+{
+    m_outdatedPreviewTimer->stop();
     m_pendingPreview = false;
-    if (!applyBookmark()) {
-        m_preview->setPixmap(item->pixmap(K3Icon::SizeEnormous));
+    if (!applyPlace(item.url())) {
+        m_preview->setPixmap(item.pixmap(KIconLoader::SizeEnormous));
     }
 }
 
-void InfoSidebarPage::gotPreview(const KFileItem* /* item */,
-                                 const QPixmap& pixmap)
+void InfoSidebarPage::showPreview(const KFileItem& item,
+                                  const QPixmap& pixmap)
 {
+    m_outdatedPreviewTimer->stop();
+
+    Q_UNUSED(item);
     if (m_pendingPreview) {
         m_preview->setPixmap(pixmap);
         m_pendingPreview = false;
     }
 }
 
-void InfoSidebarPage::startService(int index)
+void InfoSidebarPage::slotFileRenamed(const QString& source, const QString& dest)
+{
+    if (m_shownUrl == KUrl(source)) {
+        // the currently shown file has been renamed, hence update the item information
+        // for the renamed file
+        KFileItem item(KFileItem::Unknown, KFileItem::Unknown, KUrl(dest));
+        requestDelayedItemInfo(item);
+    }
+}
+
+void InfoSidebarPage::slotFilesAdded(const QString& directory)
 {
-    DolphinView* view = mainWindow()->activeView();
-    if (view->hasSelection()) {
-        KUrl::List selectedUrls = view->selectedUrls();
-        KDEDesktopMimeType::executeService(selectedUrls, m_actionsVector[index]);
+    if (m_shownUrl == KUrl(directory)) {
+        // If the 'trash' icon changes because the trash has been emptied or got filled,
+        // the signal filesAdded("trash:/") will be emitted.
+        KFileItem item(KFileItem::Unknown, KFileItem::Unknown, KUrl(directory));
+        requestDelayedItemInfo(item);
     }
-    else {
-        KDEDesktopMimeType::executeService(m_shownUrl, m_actionsVector[index]);
+}
+
+void InfoSidebarPage::slotFilesChanged(const QStringList& files)
+{
+    foreach (const QString& fileName, files) {
+        if (m_shownUrl == KUrl(fileName)) {
+            showItemInfo();
+            break;
+        }
     }
 }
 
-void InfoSidebarPage::connectToActiveView()
+void InfoSidebarPage::slotFilesRemoved(const QStringList& files)
 {
-    cancelRequest();
+    foreach (const QString& fileName, files) {
+        if (m_shownUrl == KUrl(fileName)) {
+            // the currently shown item has been removed, show
+            // the parent directory as fallback
+            m_shownUrl = url();
+            showItemInfo();
+            break;
+        }
+    }
+}
 
-    DolphinView* view = mainWindow()->activeView();
-    connect(view, SIGNAL(requestItemInfo(const KUrl&)),
-            this, SLOT(requestDelayedItemInfo(const KUrl&)));
-    connect(view, SIGNAL(urlChanged(const KUrl&)),
-            this, SLOT(requestItemInfo(const KUrl&)));
+void InfoSidebarPage::slotEnteredDirectory(const QString& directory)
+{
+    if (m_shownUrl == KUrl(directory)) {
+        KFileItem item(KFileItem::Unknown, KFileItem::Unknown, KUrl(directory));
+        requestDelayedItemInfo(item);
+    }
+}
 
-    m_shownUrl = view->url();
-    showItemInfo();
+void InfoSidebarPage::slotLeftDirectory(const QString& directory)
+{
+    if (m_shownUrl == KUrl(directory)) {
+        // The signal 'leftDirectory' is also emitted when a media
+        // has been unmounted. In this case no directory change will be
+        // done in Dolphin, but the Information Panel must be updated to
+        // indicate an invalid directory.
+        m_shownUrl = url();
+        showItemInfo();
+    }
 }
 
-bool InfoSidebarPage::applyBookmark()
+bool InfoSidebarPage::applyPlace(const KUrl& url)
 {
-    KBookmarkGroup root = DolphinSettings::instance().bookmarkManager()->root();
-    KBookmark bookmark = root.first();
-    while (!bookmark.isNull()) {
-        if (m_shownUrl.equals(bookmark.url(), KUrl::CompareWithoutTrailingSlash)) {
-            QString text("<b>");
-            text.append(bookmark.text());
-            text.append("</b>");
-            m_name->setText(text);
-
-            KIconLoader iconLoader;
-            QPixmap icon = iconLoader.loadIcon(bookmark.icon(),
-                                               K3Icon::NoGroup,
-                                               K3Icon::SizeEnormous);
-            m_preview->setPixmap(icon);
+    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;
         }
-        bookmark = root.next(bookmark);
     }
 
     return false;
@@ -269,108 +350,105 @@ bool InfoSidebarPage::applyBookmark()
 
 void InfoSidebarPage::cancelRequest()
 {
-    m_timer->stop();
-    m_pendingPreview = false;
+    m_infoTimer->stop();
 }
 
-void InfoSidebarPage::createMetaInfo()
+void InfoSidebarPage::showMetaInfo()
 {
-    // To prevent a flickering it's important to reuse available
-    // labels instead of deleting them and recreate them afterwards.
-    // The methods beginInfoLines(), addInfoLine() and endInfoLines()
-    // take care of this.
-    beginInfoLines();
-    DolphinView* view = mainWindow()->activeView();
-    if (!view->hasSelection()) {
-        KFileItem fileItem(S_IFDIR, KFileItem::Unknown, m_shownUrl);
-        fileItem.refresh();
-
-        if (fileItem.isDir()) {
-            addInfoLine(i18n("Type:"), i18n("Directory"));
+    m_metaTextLabel->clear();
+
+    if (showMultipleSelectionInfo()) {
+        if (m_metaDataWidget != 0) {
+            KUrl::List urls;
+            foreach (const KFileItem& item, m_selection) {
+                urls.append(item.targetUrl());
+            }
+            m_metaDataWidget->setFiles(urls);
         }
-        else {
-            addInfoLine(i18n("Type:"), fileItem.mimeComment());
-
-            QString sizeText(KIO::convertSize(fileItem.size()));
-            addInfoLine(i18n("Size:"), sizeText);
-            addInfoLine(i18n("Modified:"), fileItem.timeString());
-
-            const KFileMetaInfo& metaInfo = fileItem.metaInfo();
-            if (metaInfo.isValid()) {
-                QStringList keys = metaInfo.supportedKeys();
-                for (QStringList::Iterator it = keys.begin(); it != keys.end(); ++it) {
-                    if (showMetaInfo(*it)) {
-                        KFileMetaInfoItem metaInfoItem = metaInfo.item(*it);
-                        addInfoLine(*it, metaInfoItem.string());
+
+        quint64 totalSize = 0;
+        foreach (const KFileItem& item, m_selection) {
+            // Only count the size of files, not dirs to match what
+            // DolphinViewContainer::selectionStatusBarText() does.
+            if (!item.isDir() && !item.isLink()) {
+                totalSize += item.size();
+            }
+        }
+        m_metaTextLabel->add(i18nc("@label", "Total size:"), KIO::convertSize(totalSize));
+    } else {
+        const KFileItem item = fileItem();
+        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());
+
+            if (item.isLocalFile()) {
+                // TODO: See convertMetaInfo below, find a way to display only interesting information
+                // in a readable way
+                const KFileMetaInfo::WhatFlags flags = KFileMetaInfo::Fastest |
+                                                       KFileMetaInfo::TechnicalInfo |
+                                                       KFileMetaInfo::ContentInfo;
+                const QString path = item.url().path();
+                const KFileMetaInfo fileMetaInfo(path, QString(), flags);
+                if (fileMetaInfo.isValid()) {
+                    const QHash<QString, KFileMetaInfoItem>& items = fileMetaInfo.items();
+                    QHash<QString, KFileMetaInfoItem>::const_iterator it = items.constBegin();
+                    const QHash<QString, KFileMetaInfoItem>::const_iterator end = items.constEnd();
+                    QString labelText;
+                    while (it != end) {
+                        const KFileMetaInfoItem& metaInfoItem = it.value();
+                        const QVariant& value = metaInfoItem.value();
+                        if (value.isValid() && convertMetaInfo(metaInfoItem.name(), labelText)) {
+                            m_metaTextLabel->add(labelText, value.toString());
+                        }
+                        ++it;
                     }
                 }
             }
         }
-    }
-    endInfoLines();
-}
 
-void InfoSidebarPage::beginInfoLines()
-{
-    m_currInfoLineIdx = 0;
-}
-
-void InfoSidebarPage::endInfoLines()
-{
-    if (m_currInfoLineIdx <= 0) {
-        return;
-    }
-
-    // remove labels which have not been used
-    if (m_currInfoLineIdx < static_cast<int>(m_infoWidgets.count())) {
-        Q3PtrListIterator<QLabel> deleteIter(m_infoWidgets);
-        deleteIter += m_currInfoLineIdx;
-
-        QWidget* widget = 0;
-        int removeCount = 0;
-        while ((widget = deleteIter.current()) != 0) {
-            widget->close();
-            widget->deleteLater();
-            ++deleteIter;
-            ++removeCount;
-        }
-        for (int i = 0; i < removeCount; ++i) {
-            m_infoWidgets.removeLast();
+        if (m_metaDataWidget != 0) {
+            m_metaDataWidget->setFile(item.targetUrl());
         }
     }
 }
 
-bool InfoSidebarPage::showMetaInfo(const QString& key) const
+bool InfoSidebarPage::convertMetaInfo(const QString& key, QString& text) const
 {
-    // sorted list of keys, where it's data should be shown
-    static const char* keys[] = {
-        "Album",
-        "Artist",
-        "Author",
-        "Bitrate",
-        "Date",
-        "Dimensions",
-        "Genre",
-        "Length",
-        "Lines",
-        "Pages",
-        "Title",
-        "Words"
+    struct MetaKey {
+        const char* key;
+        QString text;
+    };
+
+    // sorted list of keys, where its data should be shown
+    static const MetaKey keys[] = {
+        { "http://freedesktop.org/standards/xesam/1.0/core#album",       i18nc("@label", "Album:") },
+        { "http://freedesktop.org/standards/xesam/1.0/core#artist",      i18nc("@label", "Artist:") },
+        { "http://freedesktop.org/standards/xesam/1.0/core#genre",       i18nc("@label", "Genre:") },
+        { "http://freedesktop.org/standards/xesam/1.0/core#height",      i18nc("@label", "Height:") },
+        { "http://freedesktop.org/standards/xesam/1.0/core#lineCount",   i18nc("@label", "Lines:") },
+        { "http://freedesktop.org/standards/xesam/1.0/core#title",       i18nc("@label", "Title:") },
+        { "http://freedesktop.org/standards/xesam/1.0/core#type",        i18nc("@label", "Type:") },
+        { "http://freedesktop.org/standards/xesam/1.0/core#trackNumber", i18nc("@label", "Track:") },
+        { "http://freedesktop.org/standards/xesam/1.0/core#width",       i18nc("@label", "Width:") }
     };
 
     // do a binary search for the key...
     int top = 0;
-    int bottom = sizeof(keys) / sizeof(char*) - 1;
-    while (top < bottom) {
+    int bottom = sizeof(keys) / sizeof(MetaKey) - 1;
+    while (top <= bottom) {
         const int middle = (top + bottom) / 2;
-        const int result = key.compare(keys[middle]);
+        const int result = key.compare(keys[middle].key);
         if (result < 0) {
             bottom = middle - 1;
-        }
-        else if (result > 0) {
+        } else if (result > 0) {
             top = middle + 1;
-        }
-        else {
+        } else {
+            text = keys[middle].text;
             return true;
         }
     }
@@ -378,257 +456,133 @@ bool InfoSidebarPage::showMetaInfo(const QString& key) const
     return false;
 }
 
-void InfoSidebarPage::addInfoLine(const QString& labelText, const QString& infoText)
+KFileItem InfoSidebarPage::fileItem() const
 {
-    QString labelStr("<b>");
-    labelStr.append(labelText);
-    labelStr.append("</b>&nbsp;");
-
-    const int count = m_infoWidgets.count();
-    if (m_currInfoLineIdx < count - 1) {
-        // reuse available labels
-        m_infoWidgets.at(m_currInfoLineIdx++)->setText(labelStr);
-        m_infoWidgets.at(m_currInfoLineIdx++)->setText(infoText);
-    }
-    else {
-        // no labels are available anymore, hence create 2 new ones
-        QLabel* label = new QLabel(labelStr, m_infoGrid);
-        label->setTextFormat(Qt::RichText);
-        label->setAlignment(Qt::AlignRight |
-                            Qt::AlignTop);
-        label->show();
-        m_infoWidgets.append(label);
-
-        QLabel* info = new QLabel(infoText, m_infoGrid);
-        info->setTextFormat(Qt::RichText);
-        info->setAlignment(Qt::AlignTop | Qt::TextWordWrap);
-        info->show();
-        m_infoWidgets.append(info);
-
-        m_currInfoLineIdx += 2;
+    if (!m_fileItem.isNull()) {
+        return m_fileItem;
     }
-}
-
-void InfoSidebarPage::insertActions()
-{
-    // delete all existing action widgets
-    // TODO: just use children() from QObject...
-    Q3PtrListIterator<QWidget> deleteIter(m_actionWidgets);
-    QWidget* widget = 0;
-    while ((widget = deleteIter.current()) != 0) {
-        widget->close();
-        widget->deleteLater();
-        ++deleteIter;
-    }
-
-    m_actionWidgets.clear();
-    m_actionsVector.clear();
-
-    int actionsIndex = 0;
 
-    // The algorithm for searching the available actions works on a list
-    // of KFileItems. If no selection is given, a temporary KFileItem
-    // by the given Url 'url' is created and added to the list.
-    KFileItem fileItem(S_IFDIR, KFileItem::Unknown, m_shownUrl);
-    KFileItemList itemList = mainWindow()->activeView()->selectedItems();
-    if (itemList.isEmpty()) {
-        fileItem.refresh();
-        itemList.append(&fileItem);
+    if (!m_selection.isEmpty()) {
+        Q_ASSERT(m_selection.count() == 1);
+        return m_selection.first();
     }
 
-    // 'itemList' contains now all KFileItems, where an item information should be shown.
-    // TODO: the following algorithm is quite equal to DolphinContextMenu::insertActionItems().
-    // It's open yet whether they should be merged or whether they have to work slightly different.
-    QStringList dirs = KGlobal::dirs()->findDirs("data", "dolphin/servicemenus/");
-    for (QStringList::ConstIterator dirIt = dirs.begin(); dirIt != dirs.end(); ++dirIt) {
-        QDir dir(*dirIt);
-        QStringList entries = dir.entryList("*.desktop", QDir::Files);
-
-        for (QStringList::ConstIterator entryIt = entries.begin(); entryIt != entries.end(); ++entryIt) {
-            KSimpleConfig cfg(*dirIt + *entryIt, true);
-            cfg.setDesktopGroup();
-            if ((cfg.hasKey("Actions") || cfg.hasKey("X-KDE-GetActionMenu")) && cfg.hasKey("ServiceTypes")) {
-                const QStringList types = cfg.readListEntry("ServiceTypes", ',');
-                for (QStringList::ConstIterator it = types.begin(); it != types.end(); ++it) {
-                    // check whether the mime type is equal or whether the
-                    // mimegroup (e. g. image/*) is supported
-
-                    bool insert = false;
-                    if ((*it) == "all/allfiles") {
-                        // The service type is valid for all files, but not for directories.
-                        // Check whether the selected items only consist of files...
-                        QListIterator<KFileItem*> mimeIt(itemList);
-                        insert = true;
-                        while (insert && mimeIt.hasNext()) {
-                            KFileItem* item = mimeIt.next();
-                            insert = !item->isDir();
-                        }
-                    }
-
-                    if (!insert) {
-                        // Check whether the MIME types of all selected files match
-                        // to the mimetype of the service action. As soon as one MIME
-                        // type does not match, no service menu is shown at all.
-                        QListIterator<KFileItem*> mimeIt(itemList);
-                        insert = true;
-                        while (insert && mimeIt.hasNext()) {
-                            KFileItem* item = mimeIt.next();
-                            const QString mimeType(item->mimetype());
-                            const QString mimeGroup(mimeType.left(mimeType.indexOf('/')));
-
-                            insert  = (*it == mimeType) ||
-                                      ((*it).right(1) == "*") &&
-                                      ((*it).left((*it).indexOf('/')) == mimeGroup);
-                        }
-                    }
-
-                    if (insert) {
-                        const QString submenuName = cfg.readEntry( "X-KDE-Submenu" );
-                        Q3PopupMenu* popup = 0;
-                        if (!submenuName.isEmpty()) {
-                            // create a sub menu containing all actions
-                            popup = new Q3PopupMenu();
-                            connect(popup, SIGNAL(activated(int)),
-                                    this, SLOT(startService(int)));
-
-                            QPushButton* button = new QPushButton(submenuName, m_actionBox);
-                            button->setFlat(true);
-                            button->setMenu(popup);
-                            button->show();
-                            m_actionWidgets.append(button);
-                        }
-
-                        Q3ValueList<KDEDesktopMimeType::Service> userServices =
-                            KDEDesktopMimeType::userDefinedServices(*dirIt + *entryIt, true);
-
-                        // iterate through all actions and add them to a widget
-                        Q3ValueList<KDEDesktopMimeType::Service>::Iterator serviceIt;
-                        for (serviceIt = userServices.begin(); serviceIt != userServices.end(); ++serviceIt) {
-                            KDEDesktopMimeType::Service service = (*serviceIt);
-                            if (popup == 0) {
-                                ServiceButton* button = new ServiceButton(SmallIcon(service.m_strIcon),
-                                                                          service.m_strName,
-                                                                          m_actionBox,
-                                                                          actionsIndex);
-                                connect(button, SIGNAL(requestServiceStart(int)),
-                                        this, SLOT(startService(int)));
-                                m_actionWidgets.append(button);
-                                button->show();
-                            }
-                            else {
-                                popup->insertItem(SmallIcon(service.m_strIcon), service.m_strName, actionsIndex);
-                            }
-
-                            m_actionsVector.append(service);
-                            ++actionsIndex;
-                        }
-                    }
-                }
-            }
-        }
-    }
+    // no item is hovered and no selection has been done: provide
+    // an item for the directory represented by m_shownUrl
+    KFileItem item(KFileItem::Unknown, KFileItem::Unknown, m_shownUrl);
+    item.refresh();
+    return item;
 }
 
-ServiceButton::ServiceButton(const QIcon& icon,
-                             const QString& text,
-                             QWidget* parent,
-                             int index) :
-    QPushButton(icon, text, parent),
-    m_hover(false),
-    m_index(index)
+bool InfoSidebarPage::showMultipleSelectionInfo() const
 {
-    setEraseColor(palette().brush(QPalette::Background).color());
-    setFocusPolicy(Qt::NoFocus);
-    connect(this, SIGNAL(released()),
-            this, SLOT(slotReleased()));
+    return m_fileItem.isNull() && (m_selection.count() > 1);
 }
 
-ServiceButton::~ServiceButton()
+bool InfoSidebarPage::isEqualToShownUrl(const KUrl& url) const
 {
+    return m_shownUrl.equals(url, KUrl::CompareWithoutTrailingSlash);
 }
 
-void ServiceButton::paintEvent(QPaintEvent* event)
+void InfoSidebarPage::setNameLabelText(const QString& text)
 {
-    QPainter painter(this);
-    const int buttonWidth  = width();
-    const int buttonHeight = height();
-
-    QColor backgroundColor;
-    QColor foregroundColor;
-    if (m_hover) {
-        backgroundColor = KGlobalSettings::highlightColor();
-        foregroundColor = KGlobalSettings::highlightedTextColor();
-    }
-    else {
-        backgroundColor = palette().brush(QPalette::Background).color();
-        foregroundColor = KGlobalSettings::buttonTextColor();
-    }
+    QTextOption textOption;
+    textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
+    
+    QTextLayout textLayout(text);
+    textLayout.setFont(m_nameLabel->font());
+    textLayout.setTextOption(textOption);
+    
+    QString wrappedText;
+    wrappedText.reserve(text.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());
+        
+        line = textLayout.createLine();
+        if (line.isValid()) {
+            wrappedText += QChar::LineSeparator;
+        }
+    }    
+    textLayout.endLayout();
 
-    // draw button background
-    painter.setPen(Qt::NoPen);
-    painter.setBrush(backgroundColor);
-    painter.drawRect(0, 0, buttonWidth, buttonHeight);
+    m_nameLabel->setText(wrappedText);
+}
 
+void InfoSidebarPage::init()
+{
     const int spacing = KDialog::spacingHint();
 
-    // draw icon
-    int x = spacing;
-    const int y = (buttonHeight - K3Icon::SizeSmall) / 2;
-    const QIcon* set = iconSet();
-    if (set != 0) {
-        painter.drawPixmap(x, y, set->pixmap(QIcon::Small, QIcon::Normal));
-    }
-    x += K3Icon::SizeSmall + spacing;
-
-    // draw text
-    painter.setPen(foregroundColor);
-
-    const int textWidth = buttonWidth - x;
-    QFontMetrics fontMetrics(font());
-    const bool clipped = fontMetrics.width(text()) >= textWidth;
-    //const int align = clipped ? Qt::AlignVCenter : Qt::AlignCenter;
-    painter.drawText(QRect(x, 0, textWidth, buttonHeight), Qt::AlignVCenter, text());
-
-    if (clipped) {
-        // Blend the right area of the text with the background, as the
-        // text is clipped.
-        // TODO #1: use alpha blending in Qt4 instead of drawing the text that often
-        // TODO #2: same code as in UrlNavigatorButton::drawButton() -> provide helper class?
-        const int blendSteps = 16;
-
-        QColor blendColor(backgroundColor);
-        const int redInc   = (foregroundColor.red()   - backgroundColor.red())   / blendSteps;
-        const int greenInc = (foregroundColor.green() - backgroundColor.green()) / blendSteps;
-        const int blueInc  = (foregroundColor.blue()  - backgroundColor.blue())  / blendSteps;
-        for (int i = 0; i < blendSteps; ++i) {
-            painter.setClipRect(QRect(x + textWidth - i, 0, 1, buttonHeight));
-            painter.setPen(blendColor);
-            painter.drawText(QRect(x, 0, textWidth, buttonHeight), Qt::AlignVCenter, text());
-
-            blendColor.setRgb(blendColor.red()   + redInc,
-                              blendColor.green() + greenInc,
-                              blendColor.blue()  + blueInc);
-        }
-    }
-}
+    m_infoTimer = new QTimer(this);
+    m_infoTimer->setInterval(300);
+    m_infoTimer->setSingleShot(true);
+    connect(m_infoTimer, SIGNAL(timeout()),
+            this, SLOT(slotInfoTimeout()));
+
+    // Initialize timer for disabling an outdated preview with a small
+    // 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->setSingleShot(true);
+    connect(m_outdatedPreviewTimer, SIGNAL(timeout()),
+            this, SLOT(markOutdatedPreview()));
+
+    QVBoxLayout* layout = new QVBoxLayout;
+    layout->setSpacing(spacing);
 
-void ServiceButton::enterEvent(QEvent* event)
-{
-    QPushButton::enterEvent(event);
-    m_hover = true;
-    update();
-}
+    // name
+    m_nameLabel = new QLabel(this);
+    QFont font = m_nameLabel->font();
+    font.setBold(true);
+    m_nameLabel->setFont(font);
+    m_nameLabel->setAlignment(Qt::AlignHCenter);
+    m_nameLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 
-void ServiceButton::leaveEvent(QEvent* event)
-{
-    QPushButton::leaveEvent(event);
-    m_hover = false;
-    update();
-}
+    // preview
+    m_preview = new PixmapViewer(this);
+    m_preview->setMinimumWidth(KIconLoader::SizeEnormous + KIconLoader::SizeMedium);
+    m_preview->setMinimumHeight(KIconLoader::SizeEnormous);
 
-void ServiceButton::slotReleased()
-{
-    emit requestServiceStart(m_index);
+    if (MetaDataWidget::metaDataAvailable()) {
+        // rating, comment and tags
+        m_metaDataWidget = new MetaDataWidget(this);
+        m_metaDataWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
+    }
+
+    // general meta text information
+    m_metaTextLabel = new MetaTextLabel(this);
+    m_metaTextLabel->setMinimumWidth(spacing);
+    m_metaTextLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
+
+    layout->addWidget(m_nameLabel);
+    layout->addWidget(new KSeparator(this));
+    layout->addWidget(m_preview);
+    layout->addWidget(new KSeparator(this));
+    if (m_metaDataWidget != 0) {
+        layout->addWidget(m_metaDataWidget);
+        layout->addWidget(new KSeparator(this));
+    }
+    layout->addWidget(m_metaTextLabel);
+
+    // ensure that widgets in the information side bar are aligned towards the top
+    layout->addStretch(1);
+    setLayout(layout);
+
+    org::kde::KDirNotify* dirNotify = new org::kde::KDirNotify(QString(), QString(),
+                                                               QDBusConnection::sessionBus(), this);
+    connect(dirNotify, SIGNAL(FileRenamed(QString, QString)), SLOT(slotFileRenamed(QString, QString)));
+    connect(dirNotify, SIGNAL(FilesAdded(QString)), SLOT(slotFilesAdded(QString)));
+    connect(dirNotify, SIGNAL(FilesChanged(QStringList)), SLOT(slotFilesChanged(QStringList)));
+    connect(dirNotify, SIGNAL(FilesRemoved(QStringList)), SLOT(slotFilesRemoved(QStringList)));
+    connect(dirNotify, SIGNAL(enteredDirectory(QString)), SLOT(slotEnteredDirectory(QString)));
+    connect(dirNotify, SIGNAL(leftDirectory(QString)), SLOT(slotLeftDirectory(QString)));
+
+    m_initialized = true;
 }
 
 #include "infosidebarpage.moc"