X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/7eef5ebec2ceaebb4088629093ecd3f0c2635816..13b2fc55704fbc734cd4f9cbae56cfc2ef3ec0ce:/src/infosidebarpage.cpp

diff --git a/src/infosidebarpage.cpp b/src/infosidebarpage.cpp
index b7490625f..b384f24e6 100644
--- a/src/infosidebarpage.cpp
+++ b/src/infosidebarpage.cpp
@@ -21,21 +21,23 @@
 
 #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 <QTimer>
@@ -43,112 +45,123 @@
 
 #include "dolphinsettings.h"
 #include "metadatawidget.h"
+#include "metatextlabel.h"
 #include "pixmapviewer.h"
 
 InfoSidebarPage::InfoSidebarPage(QWidget* parent) :
     SidebarPage(parent),
+    m_initialized(false),
     m_pendingPreview(false),
-    m_timer(0),
-    m_preview(0),
+    m_shownUrl(),
+    m_urlCandidate(),
+    m_fileItem(),
+    m_selection(),
     m_nameLabel(0),
-    m_infoLabel(0),
-    m_metadataWidget(0)
+    m_preview(0),
+    m_metaDataWidget(0),
+    m_metaTextLabel(0)
 {
-    const int spacing = KDialog::spacingHint();
-
-    m_timer = new QTimer(this);
-    m_timer->setSingleShot(true);
-    connect(m_timer, SIGNAL(timeout()),
-            this, SLOT(slotTimeout()));
-
-    QVBoxLayout* layout = new QVBoxLayout;
-    layout->setSpacing(spacing);
-
-    // preview
-    m_preview = new PixmapViewer(this);
-    m_preview->setMinimumWidth(K3Icon::SizeEnormous);
-    m_preview->setFixedHeight(K3Icon::SizeEnormous);
-
-    // name
-    m_nameLabel = new QLabel(this);
-    m_nameLabel->setTextFormat(Qt::RichText);
-    m_nameLabel->setAlignment(m_nameLabel->alignment() | Qt::AlignHCenter);
-    m_nameLabel->setWordWrap(true);
-
-    // general information
-    m_infoLabel = new QLabel(this);
-    m_infoLabel->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
-    m_infoLabel->setTextFormat(Qt::RichText);
-
-    if (MetaDataWidget::metaDataAvailable()) {
-        m_metadataWidget = new MetaDataWidget(this);
-    }
-
-    layout->addItem(new QSpacerItem(spacing, spacing, QSizePolicy::Preferred, QSizePolicy::Fixed));
-    layout->addWidget(m_preview);
-    layout->addWidget(m_nameLabel);
-    layout->addWidget(new KSeparator(this));
-    layout->addWidget(m_infoLabel);
-    layout->addWidget(new KSeparator(this));
-    if (m_metadataWidget) {
-        layout->addWidget(m_metadataWidget);
-    }
-    // ensure that widgets in the information side bar are aligned towards the top
-    layout->addStretch(1);
-    setLayout(layout);
 }
 
 InfoSidebarPage::~InfoSidebarPage()
 {
 }
 
+QSize InfoSidebarPage::sizeHint() const
+{
+    QSize size = SidebarPage::sizeHint();
+    size.setWidth(minimumSizeHint().width());
+    return size;
+}
+
 void InfoSidebarPage::setUrl(const KUrl& url)
 {
+    SidebarPage::setUrl(url);
     if (url.isValid() && !m_shownUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
-        cancelRequest();
-        m_shownUrl = url;
-        showItemInfo();
+        if (m_initialized) {
+            cancelRequest();
+            m_shownUrl = url;
+            showItemInfo();
+        } else {
+            m_shownUrl = url;
+        }
     }
 }
 
 void InfoSidebarPage::setSelection(const KFileItemList& selection)
 {
-    SidebarPage::setSelection(selection);
-    m_timer->start(TimerDelay);
+    if (!m_initialized) {
+        return;
+    }
+
+    m_selection = selection;
+
+    const int count = selection.count();
+    if (count == 0) {
+        m_shownUrl = url();
+        showItemInfo();
+    } else {
+        if ((count == 1) && !selection.first().url().isEmpty()) {
+            m_urlCandidate = selection.first().url();
+        }
+        m_timer->start(TimerDelay);
+    }
 }
 
 void InfoSidebarPage::requestDelayedItemInfo(const KFileItem& item)
 {
+    if (!m_initialized) {
+        return;
+    }
+
     cancelRequest();
 
-    if (!item.isNull() && (selection().size() <= 1)) {
-        const KUrl url = item.url();
-        if (!url.isEmpty()) {
-            m_urlCandidate = 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_timer->start(TimerDelay);
         }
+    } else if (!item.url().isEmpty()) {
+        m_urlCandidate = item.url();
+        m_fileItem = item;
+        m_timer->start(TimerDelay);
     }
 }
 
 void InfoSidebarPage::showEvent(QShowEvent* event)
 {
     SidebarPage::showEvent(event);
-    if (event->spontaneous()) {
-        return;
+    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();
     }
-    showItemInfo();
 }
 
 void InfoSidebarPage::resizeEvent(QResizeEvent* event)
 {
-    // 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);
-    m_infoLabel->setMaximumWidth(maxWidth);
+    if (m_initialized) {
+        // 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_timer->start(TimerDelay);
+    }
+
     SidebarPage::resizeEvent(event);
 }
 
@@ -160,36 +173,33 @@ void InfoSidebarPage::showItemInfo()
 
     cancelRequest();
 
-    const KFileItemList& selectedItems = selection();
-
-    KUrl file;
-    if (selectedItems.isEmpty()) {
-        file = m_shownUrl;
-    } else {
-        file = selectedItems[0]->url();
-    }
+    const KUrl file = (!m_fileItem.isNull() || m_selection.isEmpty()) ? m_shownUrl : m_selection[0].url();
     if (!file.isValid()) {
         return;
     }
-    const int itemCount = selectedItems.count();
-    if (itemCount > 1) {
+
+    const int selectionCount = m_selection.count();
+    if (m_fileItem.isNull() && (selectionCount > 1)) {
         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_nameLabel->setText(i18ncp("@info", "%1 item selected", "%1 items selected", selectedItems.count()));
-    } else if (!applyBookmark(file)) {
+        m_nameLabel->setText(i18ncp("@info", "%1 item selected", "%1 items selected", selectionCount));
+    } else if (!applyPlace(file)) {
         // try to get a preview pixmap from the item...
         KUrl::List list;
         list.append(file);
 
         m_pendingPreview = true;
-        m_preview->setPixmap(QPixmap());
+
+        KIconEffect iconEffect;
+        QPixmap disabledPixmap = iconEffect.apply(m_preview->pixmap(), KIconLoader::Desktop, KIconLoader::DisabledState);
+        m_preview->setPixmap(disabledPixmap);
 
         KIO::PreviewJob* job = KIO::filePreview(list,
                                                 m_preview->width(),
-                                                K3Icon::SizeEnormous,
+                                                m_preview->height(),
                                                 0,
                                                 0,
                                                 true,
@@ -201,10 +211,7 @@ void InfoSidebarPage::showItemInfo()
         connect(job, SIGNAL(failed(const KFileItem&)),
                 this, SLOT(showIcon(const KFileItem&)));
 
-        QString text("<b>");
-        text.append(file.fileName());
-        text.append("</b>");
-        m_nameLabel->setText(text);
+        m_nameLabel->setText(file.fileName());
     }
 
     showMetaInfo();
@@ -219,8 +226,8 @@ void InfoSidebarPage::slotTimeout()
 void InfoSidebarPage::showIcon(const KFileItem& item)
 {
     m_pendingPreview = false;
-    if (!applyBookmark(item.url())) {
-        m_preview->setPixmap(item.pixmap(K3Icon::SizeEnormous));
+    if (!applyPlace(item.url())) {
+        m_preview->setPixmap(item.pixmap(KIconLoader::SizeEnormous));
     }
 }
 
@@ -234,7 +241,70 @@ void InfoSidebarPage::showPreview(const KFileItem& item,
     }
 }
 
-bool InfoSidebarPage::applyBookmark(const KUrl& url)
+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)
+{
+    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);
+    }
+}
+
+void InfoSidebarPage::slotFilesChanged(const QStringList& files)
+{
+    foreach (const QString& fileName, files) {
+        if (m_shownUrl == KUrl(fileName)) {
+            showItemInfo();
+            break;
+        }
+    }
+}
+
+void InfoSidebarPage::slotFilesRemoved(const QStringList& files)
+{
+    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;
+        }
+    }
+}
+
+void InfoSidebarPage::slotEnteredDirectory(const QString& directory)
+{
+    if (m_shownUrl == KUrl(directory)) {
+        KFileItem item(KFileItem::Unknown, KFileItem::Unknown, KUrl(directory));
+        requestDelayedItemInfo(item);
+    }
+}
+
+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::applyPlace(const KUrl& url)
 {
     KFilePlacesModel* placesModel = DolphinSettings::instance().placesModel();
     int count = placesModel->rowCount();
@@ -243,11 +313,7 @@ bool InfoSidebarPage::applyBookmark(const KUrl& url)
         QModelIndex index = placesModel->index(i, 0);
 
         if (url.equals(placesModel->url(index), KUrl::CompareWithoutTrailingSlash)) {
-            QString text("<b>");
-            text.append(placesModel->text(index));
-            text.append("</b>");
-            m_nameLabel->setText(text);
-
+            m_nameLabel->setText(placesModel->text(index));
             m_preview->setPixmap(placesModel->icon(index).pixmap(128, 128));
             return true;
         }
@@ -259,73 +325,79 @@ bool InfoSidebarPage::applyBookmark(const KUrl& url)
 void InfoSidebarPage::cancelRequest()
 {
     m_timer->stop();
-    m_pendingPreview = false;
 }
 
 void InfoSidebarPage::showMetaInfo()
 {
-    QString text;
-
-    const KFileItemList& selectedItems = selection();
-    if (selectedItems.size() <= 1) {
-        KFileItem fileItem(S_IFDIR, KFileItem::Unknown, m_shownUrl);
-        fileItem.refresh();
+    m_metaTextLabel->clear();
+
+    if ((m_selection.size() <= 1) || !m_fileItem.isNull()) {
+        KFileItem fileItem;
+        if (m_fileItem.isNull()) {
+            // no pending request is ongoing
+            const KUrl url = (m_selection.size() == 1) ? m_selection.first().url() : m_shownUrl;
+            fileItem = KFileItem(KFileItem::Unknown, KFileItem::Unknown, url);
+            fileItem.refresh();
+        } else {
+            fileItem = m_fileItem;
+        }
 
         if (fileItem.isDir()) {
-            addInfoLine(text, i18nc("@label", "Type:"), i18nc("@info", "Folder"));
+            m_metaTextLabel->add(i18nc("@label", "Type:"), i18nc("@label", "Folder"));
+            m_metaTextLabel->add(i18nc("@label", "Modified:"), fileItem.timeString());
         } else {
-            addInfoLine(text, i18nc("@label", "Type:"), fileItem.mimeComment());
-
-            QString sizeText(KIO::convertSize(fileItem.size()));
-            addInfoLine(text, i18nc("@label", "Size:"), sizeText);
-            addInfoLine(text, i18nc("@label", "Modified:"), fileItem.timeString());
-
-            // TODO: See convertMetaInfo below, find a way to display only interesting information
-            // in a readable way
-            const KFileMetaInfo metaInfo(fileItem.url());
-            if (metaInfo.isValid()) {
-                const QHash<QString, KFileMetaInfoItem>& items = metaInfo.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& metaInfo = it.value();
-                    const QVariant& value = metaInfo.value();
-                    if (value.isValid() && convertMetaInfo(metaInfo.name(), labelText)) {
-                        addInfoLine(text, labelText, value.toString());
+            m_metaTextLabel->add(i18nc("@label", "Type:"), fileItem.mimeComment());
+
+            m_metaTextLabel->add(i18nc("@label", "Size:"), KIO::convertSize(fileItem.size()));
+            m_metaTextLabel->add(i18nc("@label", "Modified:"), fileItem.timeString());
+
+            if (fileItem.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 = fileItem.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;
                     }
-                    ++it;
                 }
             }
         }
 
-        if (MetaDataWidget::metaDataAvailable()) {
-            m_metadataWidget->setFile(fileItem.url());
+        if (m_metaDataWidget != 0) {
+            m_metaDataWidget->setFile(fileItem.targetUrl());
         }
     } else {
-        if (MetaDataWidget::metaDataAvailable()) {
-            m_metadataWidget->setFiles(selectedItems.urlList());
+        if (m_metaDataWidget != 0) {
+            KUrl::List urls;
+            foreach (const KFileItem& item, m_selection) {
+                urls.append(item.targetUrl());
+            }
+            m_metaDataWidget->setFiles(urls);
         }
 
-        unsigned long int totalSize = 0;
-        foreach (KFileItem* item, selectedItems) {
-            // TODO: what to do with directories (same with the one-item-selected-code)?,
-            // item->size() does not return the size of the content : not very instinctive for users
-            totalSize += item->size();
+        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();
+            }
         }
-        addInfoLine(text, i18nc("@label", "Total size:"), KIO::convertSize(totalSize));
-    }
-    m_infoLabel->setText(text);
-}
-
-void InfoSidebarPage::addInfoLine(QString& text,
-                                  const QString& labelText,
-                                  const QString& infoText)
-{
-    if (!infoText.isEmpty()) {
-        text += "<br/>";
+        m_metaTextLabel->add(i18nc("@label", "Total size:"), KIO::convertSize(totalSize));
     }
-    text += QString("<b>%1</b> %2").arg(labelText).arg(infoText);
 }
 
 bool InfoSidebarPage::convertMetaInfo(const QString& key, QString& text) const
@@ -366,4 +438,67 @@ bool InfoSidebarPage::convertMetaInfo(const QString& key, QString& text) const
     return false;
 }
 
+void InfoSidebarPage::init()
+{
+    const int spacing = KDialog::spacingHint();
+
+    m_timer = new QTimer(this);
+    m_timer->setSingleShot(true);
+    connect(m_timer, SIGNAL(timeout()),
+            this, SLOT(slotTimeout()));
+
+    QVBoxLayout* layout = new QVBoxLayout;
+    layout->setSpacing(spacing);
+
+    // 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->setWordWrap(true);
+    m_nameLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
+
+    // preview
+    m_preview = new PixmapViewer(this);
+    m_preview->setMinimumWidth(KIconLoader::SizeEnormous + KIconLoader::SizeMedium);
+    m_preview->setMinimumHeight(KIconLoader::SizeEnormous);
+
+    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"