X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/97415729c34851df75c77a67f27d6299c00bfbc4..b68abb7d2718709c2a3ed1e92145ed4247b7333b:/src/views/dolphinview.cpp diff --git a/src/views/dolphinview.cpp b/src/views/dolphinview.cpp index a8624170d..f0f67c9d0 100644 --- a/src/views/dolphinview.cpp +++ b/src/views/dolphinview.cpp @@ -45,10 +45,13 @@ #include #include +#include #include #include #include +#include #include +#include #include #include #include @@ -65,6 +68,7 @@ DolphinView::DolphinView(const QUrl& url, QWidget* parent) : m_assureVisibleCurrentIndex(false), m_isFolderWritable(true), m_dragging(false), + m_loading(false), m_url(url), m_viewPropertiesContext(), m_mode(DolphinView::IconsView), @@ -82,7 +86,8 @@ DolphinView::DolphinView(const QUrl& url, QWidget* parent) : m_clearSelectionBeforeSelectingNewItems(false), m_markFirstNewlySelectedItemAsCurrent(false), m_versionControlObserver(nullptr), - m_twoClicksRenamingTimer(nullptr) + m_twoClicksRenamingTimer(nullptr), + m_placeholderLabel(nullptr) { m_topLayout = new QVBoxLayout(this); m_topLayout->setSpacing(0); @@ -120,6 +125,28 @@ DolphinView::DolphinView(const QUrl& url, QWidget* parent) : connect(m_container->horizontalScrollBar(), &QScrollBar::valueChanged, this, [=] { hideToolTip(); }); connect(m_container->verticalScrollBar(), &QScrollBar::valueChanged, this, [=] { hideToolTip(); }); + // Show some placeholder text for empty folders + // This is made using a heavily-modified QLabel rather than a KTitleWidget + // because KTitleWidget can't be told to turn off mouse-selectable text + m_placeholderLabel = new QLabel(this); + QFont placeholderLabelFont; + // To match the size of a level 2 Heading/KTitleWidget + placeholderLabelFont.setPointSize(qRound(placeholderLabelFont.pointSize() * 1.3)); + m_placeholderLabel->setFont(placeholderLabelFont); + m_placeholderLabel->setTextInteractionFlags(Qt::NoTextInteraction); + m_placeholderLabel->setWordWrap(true); + m_placeholderLabel->setAlignment(Qt::AlignCenter); + // Match opacity of QML placeholder label component + auto *effect = new QGraphicsOpacityEffect(m_placeholderLabel); + effect->setOpacity(0.5); + m_placeholderLabel->setGraphicsEffect(effect); + // Set initial text and visibility + updatePlaceholderLabel(); + + auto *centeringLayout = new QVBoxLayout(m_container); + centeringLayout->addWidget(m_placeholderLabel); + centeringLayout->setAlignment(m_placeholderLabel, Qt::AlignCenter); + controller->setSelectionBehavior(KItemListController::MultiSelection); connect(controller, &KItemListController::itemActivated, this, &DolphinView::slotItemActivated); connect(controller, &KItemListController::itemsActivated, this, &DolphinView::slotItemsActivated); @@ -140,7 +167,7 @@ DolphinView::DolphinView(const QUrl& url, QWidget* parent) : connect(m_model, &KFileItemModel::directoryLoadingStarted, this, &DolphinView::slotDirectoryLoadingStarted); connect(m_model, &KFileItemModel::directoryLoadingCompleted, this, &DolphinView::slotDirectoryLoadingCompleted); - connect(m_model, &KFileItemModel::directoryLoadingCanceled, this, &DolphinView::directoryLoadingCanceled); + connect(m_model, &KFileItemModel::directoryLoadingCanceled, this, &DolphinView::slotDirectoryLoadingCanceled); connect(m_model, &KFileItemModel::directoryLoadingProgress, this, &DolphinView::directoryLoadingProgress); connect(m_model, &KFileItemModel::directorySortingProgress, this, &DolphinView::directorySortingProgress); connect(m_model, &KFileItemModel::itemsChanged, @@ -152,6 +179,9 @@ DolphinView::DolphinView(const QUrl& url, QWidget* parent) : connect(m_model, &KFileItemModel::directoryRedirection, this, &DolphinView::slotDirectoryRedirection); connect(m_model, &KFileItemModel::urlIsFileError, this, &DolphinView::urlIsFileError); + connect(this, &DolphinView::itemCountChanged, + this, &DolphinView::updatePlaceholderLabel); + m_view->installEventFilter(this); connect(m_view, &DolphinItemListView::sortOrderChanged, this, &DolphinView::slotSortOrderChangedByHeader); @@ -499,17 +529,18 @@ QStringList DolphinView::mimeTypeFilters() const return m_model->mimeTypeFilters(); } -QString DolphinView::statusBarText() const +void DolphinView::requestStatusBarText() { - QString summary; - QString foldersText; - QString filesText; - - int folderCount = 0; - int fileCount = 0; - KIO::filesize_t totalFileSize = 0; + if (m_statJobForStatusBarText) { + // Kill the pending request. + m_statJobForStatusBarText->kill(); + } if (m_container->controller()->selectionManager()->hasSelection()) { + int folderCount = 0; + int fileCount = 0; + KIO::filesize_t totalFileSize = 0; + // Give a summary of the status of the selected files const KFileItemList list = selectedItems(); for (const KFileItem& item : list) { @@ -523,14 +554,37 @@ QString DolphinView::statusBarText() const if (folderCount + fileCount == 1) { // If only one item is selected, show info about it - return list.first().getStatusBarInfo(); + Q_EMIT statusBarTextChanged(list.first().getStatusBarInfo()); } else { // At least 2 items are selected - foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount); - filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount); + emitStatusBarText(folderCount, fileCount, totalFileSize, HasSelection); } + } else { // has no selection + if (!m_model->rootItem().url().isValid()) { + return; + } + + m_statJobForStatusBarText = KIO::statDetails(m_model->rootItem().url(), + KIO::StatJob::SourceSide, KIO::StatRecursiveSize, KIO::HideProgressInfo); + connect(m_statJobForStatusBarText, &KJob::result, + this, &DolphinView::slotStatJobResult); + m_statJobForStatusBarText->start(); + } +} + +void DolphinView::emitStatusBarText(const int folderCount, const int fileCount, + KIO::filesize_t totalFileSize, const Selection selection) +{ + QString foldersText; + QString filesText; + QString summary; + + if (selection == HasSelection) { + // At least 2 items are selected because the case of 1 selected item is handled in + // DolphinView::requestStatusBarText(). + foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount); + filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount); } else { - calculateItemCount(fileCount, folderCount, totalFileSize); foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount); filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount); } @@ -548,8 +602,7 @@ QString DolphinView::statusBarText() const } else { summary = i18nc("@info:status", "0 Folders, 0 Files"); } - - return summary; + Q_EMIT statusBarTextChanged(summary); } QList DolphinView::versionControlActions(const KFileItemList& items) const @@ -847,10 +900,10 @@ bool DolphinView::eventFilter(QObject* watched, QEvent* event) void DolphinView::wheelEvent(QWheelEvent* event) { if (event->modifiers().testFlag(Qt::ControlModifier)) { - const int numDegrees = event->delta() / 8; - const int numSteps = numDegrees / 15; + const QPoint numDegrees = event->angleDelta() / 8; + const QPoint numSteps = numDegrees / 15; - setZoomLevel(zoomLevel() + numSteps); + setZoomLevel(zoomLevel() + numSteps.y()); event->accept(); } else { event->ignore(); @@ -915,7 +968,7 @@ void DolphinView::slotItemsActivated(const KItemSet& indexes) const QUrl& url = openItemAsFolderUrl(item); if (!url.isEmpty()) { // Open folders in new tabs - Q_EMIT tabRequested(url, DolphinTabWidget::AfterLastTab); + Q_EMIT tabRequested(url); } else { items.append(item); } @@ -933,9 +986,9 @@ void DolphinView::slotItemMiddleClicked(int index) const KFileItem& item = m_model->fileItem(index); const QUrl& url = openItemAsFolderUrl(item); if (!url.isEmpty()) { - Q_EMIT tabRequested(url, DolphinTabWidget::AfterCurrentTab); + Q_EMIT tabRequested(url); } else if (isTabsForFilesEnabled()) { - Q_EMIT tabRequested(item.url(), DolphinTabWidget::AfterCurrentTab); + Q_EMIT tabRequested(item.url()); } } @@ -1242,6 +1295,36 @@ void DolphinView::emitSelectionChangedSignal() Q_EMIT selectionChanged(selectedItems()); } +void DolphinView::slotStatJobResult(KJob *job) +{ + int folderCount = 0; + int fileCount = 0; + KIO::filesize_t totalFileSize = 0; + bool countFileSize = true; + + const auto entry = static_cast(job)->statResult(); + if (entry.contains(KIO::UDSEntry::UDS_RECURSIVE_SIZE)) { + // We have a precomputed value. + totalFileSize = static_cast( + entry.numberValue(KIO::UDSEntry::UDS_RECURSIVE_SIZE)); + countFileSize = false; + } + + const int itemCount = m_model->count(); + for (int i = 0; i < itemCount; ++i) { + const KFileItem item = m_model->fileItem(i); + if (item.isDir()) { + ++folderCount; + } else { + ++fileCount; + if (countFileSize) { + totalFileSize += item.size(); + } + } + } + emitStatusBarText(folderCount, fileCount, totalFileSize, NoSelection); +} + void DolphinView::updateSortRole(const QByteArray& role) { ViewProperties props(viewPropertiesUrl()); @@ -1508,40 +1591,6 @@ void DolphinView::hideToolTip(const ToolTipManager::HideBehavior behavior) #endif } -void DolphinView::calculateItemCount(int& fileCount, - int& folderCount, - KIO::filesize_t& totalFileSize) const -{ - const int itemCount = m_model->count(); - - bool countFileSize = true; - - if (!m_model->rootItem().url().isValid()) { - return; - } - - // In case we have a precomputed value - const auto job = KIO::statDetails(m_model->rootItem().url(), KIO::StatJob::SourceSide, KIO::StatRecursiveSize, KIO::HideProgressInfo); - job->exec(); - const auto entry = job->statResult(); - if (entry.contains(KIO::UDSEntry::UDS_RECURSIVE_SIZE)) { - totalFileSize = static_cast(entry.numberValue(KIO::UDSEntry::UDS_RECURSIVE_SIZE)); - countFileSize = false; - } - - for (int i = 0; i < itemCount; ++i) { - const KFileItem item = m_model->fileItem(i); - if (item.isDir()) { - ++folderCount; - } else { - ++fileCount; - if (countFileSize) { - totalFileSize += item.size(); - } - } - } -} - void DolphinView::slotTwoClicksRenamingTimerTimeout() { const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager(); @@ -1594,6 +1643,9 @@ void DolphinView::slotRenamingResult(KJob* job) void DolphinView::slotDirectoryLoadingStarted() { + m_loading = true; + updatePlaceholderLabel(); + // Disable the writestate temporary until it can be determined in a fast way // in DolphinView::slotDirectoryLoadingCompleted() if (m_isFolderWritable) { @@ -1606,15 +1658,30 @@ void DolphinView::slotDirectoryLoadingStarted() void DolphinView::slotDirectoryLoadingCompleted() { + m_loading = false; + // Update the view-state. This has to be done asynchronously // because the view might not be in its final state yet. QTimer::singleShot(0, this, &DolphinView::updateViewState); + // Update the placeholder label in case we found that the folder was empty + // after loading it + Q_EMIT directoryLoadingCompleted(); + updatePlaceholderLabel(); updateWritableState(); } +void DolphinView::slotDirectoryLoadingCanceled() +{ + m_loading = false; + + updatePlaceholderLabel(); + + Q_EMIT directoryLoadingCanceled(); +} + void DolphinView::slotItemsChanged() { m_assureVisibleCurrentIndex = false; @@ -1976,3 +2043,35 @@ void DolphinView::slotSwipeUp() { Q_EMIT goUpRequested(); } + +void DolphinView::updatePlaceholderLabel() +{ + if (m_loading || itemsCount() > 0) { + m_placeholderLabel->setVisible(false); + return; + } + + if (!nameFilter().isEmpty()) { + m_placeholderLabel->setText(i18n("No items matching the filter")); + } else if (m_url.scheme() == QLatin1String("baloosearch") || m_url.scheme() == QLatin1String("filenamesearch")) { + m_placeholderLabel->setText(i18n("No items matching the search")); + } else if (m_url.scheme() == QLatin1String("trash")) { + m_placeholderLabel->setText(i18n("Trash is empty")); + } else if (m_url.scheme() == QLatin1String("tags")) { + m_placeholderLabel->setText(i18n("No tags")); + } else if (m_url.scheme() == QLatin1String("recentlyused")) { + m_placeholderLabel->setText(i18n("No recently used items")); + } else if (m_url.scheme() == QLatin1String("smb")) { + m_placeholderLabel->setText(i18n("No shared folders found")); + } else if (m_url.scheme() == QLatin1String("network")) { + m_placeholderLabel->setText(i18n("No relevant network resources found")); + } else if (m_url.scheme() == QLatin1String("mtp")) { + m_placeholderLabel->setText(i18n("No MTP-compatible devices found")); + } else if (m_url.scheme() == QLatin1String("bluetooth")) { + m_placeholderLabel->setText(i18n("No Bluetooth devices found")); + } else { + m_placeholderLabel->setText(i18n("Folder is empty")); + } + + m_placeholderLabel->setVisible(true); +}