X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/b1c9b5126d591688b3dd94bfcc3487bc4bc3275b..8eb9b508ca87fb1d634d8b8ba62c054ed04466d2:/src/panels/information/informationpanel.cpp diff --git a/src/panels/information/informationpanel.cpp b/src/panels/information/informationpanel.cpp index f91ab8d4a..81afc1487 100644 --- a/src/panels/information/informationpanel.cpp +++ b/src/panels/information/informationpanel.cpp @@ -1,5 +1,5 @@ /*************************************************************************** - * Copyright (C) 2006 by Peter Penz * + * Copyright (C) 2006-2009 by Peter Penz * * * * 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 * @@ -19,66 +19,26 @@ #include "informationpanel.h" -#include - -#include +#include "informationpanelcontent.h" +#include #include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#ifdef HAVE_NEPOMUK -#include -#include -#include -#endif - -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include +#include +#include #include -#include "settings/dolphinsettings.h" -#include "metadatawidget.h" -#include "metatextlabel.h" -#include "phononwidget.h" -#include "pixmapviewer.h" - InformationPanel::InformationPanel(QWidget* parent) : Panel(parent), m_initialized(false), - m_pendingPreview(false), m_infoTimer(0), - m_outdatedPreviewTimer(0), + m_urlChangedTimer(0), + m_resetUrlTimer(0), m_shownUrl(), m_urlCandidate(), + m_invalidUrlCandidate(), m_fileItem(), m_selection(), - m_nameLabel(0), - m_preview(0), - m_phononWidget(0), - m_metaDataWidget(0), - m_metaTextArea(0), - m_metaTextLabel(0) + m_folderStatJob(0), + m_content(0) { } @@ -86,27 +46,6 @@ InformationPanel::~InformationPanel() { } -QSize InformationPanel::sizeHint() const -{ - QSize size = Panel::sizeHint(); - size.setWidth(minimumSizeHint().width()); - return size; -} - -void InformationPanel::setUrl(const KUrl& url) -{ - Panel::setUrl(url); - if (url.isValid() && !isEqualToShownUrl(url)) { - if (isVisible()) { - cancelRequest(); - m_shownUrl = url; - showItemInfo(); - } else { - m_shownUrl = url; - } - } -} - void InformationPanel::setSelection(const KFileItemList& selection) { if (!isVisible()) { @@ -122,6 +61,7 @@ void InformationPanel::setSelection(const KFileItemList& selection) } m_selection = selection; + m_fileItem = KFileItem(); const int count = selection.count(); if (count == 0) { @@ -139,28 +79,58 @@ void InformationPanel::setSelection(const KFileItemList& selection) void InformationPanel::requestDelayedItemInfo(const KFileItem& item) { - if (!isVisible()) { + if (!isVisible() || (item.isNull() && m_fileItem.isNull())) { + return; + } + + if (QApplication::mouseButtons() & Qt::LeftButton) { + // Ignore the request of an item information when a rubberband + // selection is ongoing. return; } cancelRequest(); - 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_fileItem = KFileItem(); m_infoTimer->start(); } + } else if (item.url().isValid() && !isEqualToShownUrl(item.url())) { + // The cursor is above an item that is not shown currently + m_urlCandidate = item.url(); + m_fileItem = item; + m_infoTimer->start(); + } +} + +bool InformationPanel::urlChanged() +{ + if (!url().isValid()) { + return false; } + + if (!isVisible()) { + return true; + } + + cancelRequest(); + m_selection.clear(); + + if (!isEqualToShownUrl(url())) { + m_shownUrl = url(); + m_fileItem = KFileItem(); + + // Update the content with a delay. This gives + // the directory lister the chance to show the content + // before expensive operations are done to show + // meta information. + m_urlChangedTimer->start(); + } + + return true; } void InformationPanel::showEvent(QShowEvent* event) @@ -173,6 +143,8 @@ void InformationPanel::showEvent(QShowEvent* event) // Information Panel init(); } + + m_shownUrl = url(); showItemInfo(); } } @@ -180,32 +152,17 @@ void InformationPanel::showEvent(QShowEvent* event) void InformationPanel::resizeEvent(QResizeEvent* event) { 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 panel gets increased. - // To prevent this, the maximum width is adjusted to - // the current width of the panel. - 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_urlCandidate = m_shownUrl; m_infoTimer->start(); } Panel::resizeEvent(event); } -#include -bool InformationPanel::eventFilter(QObject* obj, QEvent* event) +void InformationPanel::contextMenuEvent(QContextMenuEvent* event) { - // Check whether the size of the meta text area has changed and adjust - // the fixed width in a way that no horizontal scrollbar needs to be shown. - if ((obj == m_metaTextArea->viewport()) && (event->type() == QEvent::Resize)) { - QResizeEvent* resizeEvent = static_cast(event); - m_metaTextLabel->setFixedWidth(resizeEvent->size().width()); - } - return Panel::eventFilter(obj, event); + // TODO: Move code from InformationPanelContent::configureSettings() here + m_content->configureSettings(customContextMenuActions()); + Panel::contextMenuEvent(event); } void InformationPanel::showItemInfo() @@ -216,89 +173,74 @@ void InformationPanel::showItemInfo() cancelRequest(); - if (showMultipleSelectionInfo()) { - 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", m_selection.count())); - m_shownUrl = KUrl(); + if (m_fileItem.isNull() && (m_selection.count() > 1)) { + // The information for a selection of items should be shown + m_content->showItems(m_selection); } 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(KFileItemList() << item, - m_preview->width(), - m_preview->height(), - 0, - 0, - false, - 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()); + // The information for exactly one item should be shown + KFileItem item; + if (!m_fileItem.isNull()) { + item = m_fileItem; + } else if (!m_selection.isEmpty()) { + Q_ASSERT(m_selection.count() == 1); + item = m_selection.first(); + } + + if (item.isNull()) { + // No item is hovered and no selection has been done: provide + // an item for the currently shown directory. + m_folderStatJob = KIO::stat(url(), KIO::HideProgressInfo); + connect(m_folderStatJob, SIGNAL(result(KJob*)), + this, SLOT(slotFolderStatFinished(KJob*))); + } else { + m_content->showItem(item); } } +} - showMetaInfo(); +void InformationPanel::slotFolderStatFinished(KJob* job) +{ + m_folderStatJob = 0; + const KIO::UDSEntry entry = static_cast(job)->statResult(); + m_content->showItem(KFileItem(entry, m_shownUrl)); } void InformationPanel::slotInfoTimeout() { m_shownUrl = m_urlCandidate; + m_urlCandidate.clear(); showItemInfo(); } -void InformationPanel::markOutdatedPreview() +void InformationPanel::reset() { - KIconEffect iconEffect; - QPixmap disabledPixmap = iconEffect.apply(m_preview->pixmap(), - KIconLoader::Desktop, - KIconLoader::DisabledState); - m_preview->setPixmap(disabledPixmap); -} + if (m_invalidUrlCandidate == m_shownUrl) { + m_invalidUrlCandidate = KUrl(); -void InformationPanel::showIcon(const KFileItem& item) -{ - m_outdatedPreviewTimer->stop(); - m_pendingPreview = false; - if (!applyPlace(item.url())) { - m_preview->setPixmap(item.pixmap(KIconLoader::SizeEnormous)); - } -} - -void InformationPanel::showPreview(const KFileItem& item, - const QPixmap& pixmap) -{ - m_outdatedPreviewTimer->stop(); - - Q_UNUSED(item); - if (m_pendingPreview) { - m_preview->setPixmap(pixmap); - m_pendingPreview = false; + // The current URL is still invalid. Reset + // the content to show the directory URL. + m_selection.clear(); + m_shownUrl = url(); + m_fileItem = KFileItem(); + showItemInfo(); } } void InformationPanel::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); + m_shownUrl = KUrl(dest); + m_fileItem = KFileItem(KFileItem::Unknown, KFileItem::Unknown, m_shownUrl); + + if ((m_selection.count() == 1) && (m_selection[0].url() == KUrl(source))) { + m_selection[0] = m_fileItem; + // Implementation note: Updating the selection is only required if exactly one + // item is selected, as the name of the item is shown. If this should change + // in future: Before parsing the whole selection take care to test possible + // performance bottlenecks when renaming several hundreds of files. + } + + showItemInfo(); } } @@ -328,8 +270,7 @@ void InformationPanel::slotFilesRemoved(const QStringList& files) if (m_shownUrl == KUrl(fileName)) { // the currently shown item has been removed, show // the parent directory as fallback - m_shownUrl = url(); - showItemInfo(); + markUrlAsInvalid(); break; } } @@ -350,123 +291,23 @@ void InformationPanel::slotLeftDirectory(const QString& directory) // 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 InformationPanel::applyPlace(const KUrl& url) -{ - 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; - } + markUrlAsInvalid(); } - - return false; } void InformationPanel::cancelRequest() { - m_infoTimer->stop(); -} - -void InformationPanel::showMetaInfo() -{ - 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); - } - - 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()); - -#ifdef HAVE_NEPOMUK - Nepomuk::Resource res(item.url()); - - QHash properties = res.properties(); - QHash::const_iterator it = properties.constBegin(); - while (it != properties.constEnd()) { - Nepomuk::Types::Property prop(it.key()); - // TODO: use Nepomuk::formatValue(res, prop) if available - // instead of it.value().toString() - m_metaTextLabel->add(prop.label(), it.value().toString()); - ++it; - } -#endif - } - - if (m_metaDataWidget != 0) { - m_metaDataWidget->setFile(item.targetUrl()); - } - - if (Phonon::BackendCapabilities::isMimeTypeAvailable(item.mimetype())) { - if (m_phononWidget == 0) { - m_phononWidget = new PhononWidget(this); - - QVBoxLayout* vBoxLayout = qobject_cast(layout()); - Q_ASSERT(vBoxLayout != 0); - vBoxLayout->insertWidget(3, m_phononWidget); - } - m_phononWidget->setUrl(item.url()); - } else { - delete m_phononWidget; - m_phononWidget = 0; - } - } -} - -KFileItem InformationPanel::fileItem() const -{ - if (!m_fileItem.isNull()) { - return m_fileItem; - } - - if (!m_selection.isEmpty()) { - Q_ASSERT(m_selection.count() == 1); - return m_selection.first(); - } + delete m_folderStatJob; + m_folderStatJob = 0; - // 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; -} + m_infoTimer->stop(); + m_resetUrlTimer->stop(); + // Don't reset m_urlChangedTimer. As it is assured that the timeout of m_urlChangedTimer + // has the smallest interval (see init()), it is not possible that the exceeded timer + // would overwrite an information provided by a selection or hovering. -bool InformationPanel::showMultipleSelectionInfo() const -{ - return m_fileItem.isNull() && (m_selection.count() > 1); + m_invalidUrlCandidate.clear(); + m_urlCandidate.clear(); } bool InformationPanel::isEqualToShownUrl(const KUrl& url) const @@ -474,102 +315,34 @@ bool InformationPanel::isEqualToShownUrl(const KUrl& url) const return m_shownUrl.equals(url, KUrl::CompareWithoutTrailingSlash); } -void InformationPanel::setNameLabelText(const QString& text) +void InformationPanel::markUrlAsInvalid() { - 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(); - - m_nameLabel->setText(wrappedText); + m_invalidUrlCandidate = m_shownUrl; + m_resetUrlTimer->start(); } void InformationPanel::init() { - const int spacing = KDialog::spacingHint(); - 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); - - // 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); - - // 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); - } + m_urlChangedTimer = new QTimer(this); + m_urlChangedTimer->setInterval(200); + m_urlChangedTimer->setSingleShot(true); + connect(m_urlChangedTimer, SIGNAL(timeout()), + this, SLOT(showItemInfo())); - // general meta text information - m_metaTextLabel = new MetaTextLabel(this); - m_metaTextLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed); - - m_metaTextArea = new QScrollArea(this); - m_metaTextArea->setWidget(m_metaTextLabel); - m_metaTextArea->setWidgetResizable(true); - m_metaTextArea->setFrameShape(QFrame::NoFrame); - - QWidget* viewport = m_metaTextArea->viewport(); - 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(new KSeparator(this)); - if (m_metaDataWidget != 0) { - layout->addWidget(m_metaDataWidget); - layout->addWidget(new KSeparator(this)); - } - layout->addWidget(m_metaTextArea); - setLayout(layout); + m_resetUrlTimer = new QTimer(this); + m_resetUrlTimer->setInterval(1000); + m_resetUrlTimer->setSingleShot(true); + connect(m_resetUrlTimer, SIGNAL(timeout()), + this, SLOT(reset())); + + Q_ASSERT(m_urlChangedTimer->interval() < m_infoTimer->interval()); + Q_ASSERT(m_urlChangedTimer->interval() < m_resetUrlTimer->interval()); org::kde::KDirNotify* dirNotify = new org::kde::KDirNotify(QString(), QString(), QDBusConnection::sessionBus(), this); @@ -580,6 +353,12 @@ void InformationPanel::init() connect(dirNotify, SIGNAL(enteredDirectory(QString)), SLOT(slotEnteredDirectory(QString))); connect(dirNotify, SIGNAL(leftDirectory(QString)), SLOT(slotLeftDirectory(QString))); + m_content = new InformationPanelContent(this); + connect(m_content, SIGNAL(urlActivated(KUrl)), this, SIGNAL(urlActivated(KUrl))); + + QVBoxLayout* layout = new QVBoxLayout(this); + layout->addWidget(m_content); + m_initialized = true; }