-/***************************************************************************
- * Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com> *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
- ***************************************************************************/
+/*
+ * SPDX-FileCopyrightText: 2011 Peter Penz <peter.penz19@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
#include "kfileitemmodelrolesupdater.h"
+#include "dolphindebug.h"
#include "kfileitemmodel.h"
+#include "private/kdirectorycontentscounter.h"
+#include "private/kpixmapmodifier.h"
#include <KConfig>
#include <KConfigGroup>
-#include <KDebug>
-#include <KFileItem>
-#include <KGlobal>
-#include <KIO/JobUiDelegate>
+#include <KIO/ListJob>
#include <KIO/PreviewJob>
-
-#include "private/kpixmapmodifier.h"
+#include <KIconLoader>
+#include <KIconUtils>
+#include <KJobWidgets>
+#include <KOverlayIconPlugin>
+#include <KPluginMetaData>
+#include <KSharedConfig>
+
+#include "dolphin_contentdisplaysettings.h"
+
+#if HAVE_BALOO
+#include "private/kbaloorolesprovider.h"
+#include <Baloo/File>
+#include <Baloo/FileMonitor>
+#endif
#include <QApplication>
-#include <QPainter>
-#include <QPixmap>
#include <QElapsedTimer>
+#include <QFileInfo>
+#include <QPainter>
+#include <QPluginLoader>
#include <QTimer>
+#include <chrono>
-#ifdef HAVE_NEPOMUK
- #include "private/knepomukrolesprovider.h"
- #include "private/nepomuk/resourcewatcher.h"
-#endif
-
-// Required includes for subItemsCount():
-#ifdef Q_WS_WIN
- #include <QDir>
-#else
- #include <dirent.h>
- #include <QFile>
-#endif
+using namespace std::chrono_literals;
// #define KFILEITEMMODELROLESUPDATER_DEBUG
-namespace {
- // Maximum time in ms that the KFileItemModelRolesUpdater
- // may perform a blocking operation
- const int MaxBlockTimeout = 200;
+namespace
+{
+// Maximum time in ms that the KFileItemModelRolesUpdater
+// may perform a blocking operation
+const int MaxBlockTimeout = 200;
- // Maximum number of items that will get resolved synchronously.
- // The value should roughly represent the number of maximum visible
- // items, as it does not make sense to resolve more items synchronously
- // and probably reach the MaxBlockTimeout because of invisible items.
- const int MaxResolveItemsCount = 100;
-}
+// If the number of items is smaller than ResolveAllItemsLimit,
+// the roles of all items will be resolved.
+const int ResolveAllItemsLimit = 500;
-KFileItemModelRolesUpdater::KFileItemModelRolesUpdater(KFileItemModel* model, QObject* parent) :
- QObject(parent),
- m_paused(false),
- m_previewChangedDuringPausing(false),
- m_iconSizeChangedDuringPausing(false),
- m_rolesChangedDuringPausing(false),
- m_previewShown(false),
- m_enlargeSmallPreviews(true),
- m_clearPreviews(false),
- m_sortingProgress(-1),
- m_model(model),
- m_iconSize(),
- m_firstVisibleIndex(0),
- m_lastVisibleIndex(-1),
- m_roles(),
- m_enabledPlugins(),
- m_pendingVisibleItems(),
- m_pendingInvisibleItems(),
- m_previewJobs(),
- m_changedItemsTimer(0),
- m_changedItems()
- #ifdef HAVE_NEPOMUK
- , m_nepomukResourceWatcher(0),
- m_nepomukUriItems()
- #endif
+// Not only the visible area, but up to ReadAheadPages before and after
+// this area will be resolved.
+const int ReadAheadPages = 5;
+}
+KFileItemModelRolesUpdater::KFileItemModelRolesUpdater(KFileItemModel *model, QObject *parent)
+ : QObject(parent)
+ , m_state(Idle)
+ , m_previewChangedDuringPausing(false)
+ , m_iconSizeChangedDuringPausing(false)
+ , m_rolesChangedDuringPausing(false)
+ , m_previewShown(false)
+ , m_enlargeSmallPreviews(true)
+ , m_clearPreviews(false)
+ , m_finishedItems()
+ , m_model(model)
+ , m_iconSize()
+ , m_devicePixelRatio(1.0)
+ , m_firstVisibleIndex(0)
+ , m_lastVisibleIndex(-1)
+ , m_maximumVisibleItems(50)
+ , m_roles()
+ , m_resolvableRoles()
+ , m_enabledPlugins()
+ , m_localFileSizePreviewLimit(0)
+ , m_pendingSortRoleItems()
+ , m_pendingIndexes()
+ , m_pendingPreviewItems()
+ , m_previewJob()
+ , m_hoverSequenceItem()
+ , m_hoverSequenceIndex(0)
+ , m_hoverSequencePreviewJob(nullptr)
+ , m_hoverSequenceNumSuccessiveFailures(0)
+ , m_recentlyChangedItemsTimer(nullptr)
+ , m_recentlyChangedItems()
+ , m_changedItems()
+ , m_directoryContentsCounter(nullptr)
+#if HAVE_BALOO
+ , m_balooFileMonitor(nullptr)
+#endif
{
Q_ASSERT(model);
- const KConfigGroup globalConfig(KGlobal::config(), "PreviewSettings");
- m_enabledPlugins = globalConfig.readEntry("Plugins", QStringList()
- << "directorythumbnail"
- << "imagethumbnail"
- << "jpegthumbnail");
-
- connect(m_model, SIGNAL(itemsInserted(KItemRangeList)),
- this, SLOT(slotItemsInserted(KItemRangeList)));
- connect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),
- this, SLOT(slotItemsRemoved(KItemRangeList)));
- connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
- this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
- connect(m_model, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
- this, SLOT(slotSortRoleChanged(QByteArray,QByteArray)));
+ const KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
+ m_enabledPlugins = globalConfig.readEntry("Plugins", KIO::PreviewJob::defaultPlugins());
+ m_localFileSizePreviewLimit = static_cast<qulonglong>(globalConfig.readEntry("MaximumSize", 0));
+
+ connect(m_model, &KFileItemModel::itemsInserted, this, &KFileItemModelRolesUpdater::slotItemsInserted);
+ connect(m_model, &KFileItemModel::itemsRemoved, this, &KFileItemModelRolesUpdater::slotItemsRemoved);
+ connect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
+ connect(m_model, &KFileItemModel::itemsMoved, this, &KFileItemModelRolesUpdater::slotItemsMoved);
+ connect(m_model, &KFileItemModel::sortRoleChanged, this, &KFileItemModelRolesUpdater::slotSortRoleChanged);
// Use a timer to prevent that each call of slotItemsChanged() results in a synchronous
- // resolving of the roles. Postpone the resolving until no update has been done for 1 second.
- m_changedItemsTimer = new QTimer(this);
- m_changedItemsTimer->setInterval(1000);
- m_changedItemsTimer->setSingleShot(true);
- connect(m_changedItemsTimer, SIGNAL(timeout()), this, SLOT(resolveChangedItems()));
+ // resolving of the roles. Postpone the resolving until no update has been done for 100 ms.
+ m_recentlyChangedItemsTimer = new QTimer(this);
+ m_recentlyChangedItemsTimer->setInterval(100ms);
+ m_recentlyChangedItemsTimer->setSingleShot(true);
+ connect(m_recentlyChangedItemsTimer, &QTimer::timeout, this, &KFileItemModelRolesUpdater::resolveRecentlyChangedItems);
m_resolvableRoles.insert("size");
m_resolvableRoles.insert("type");
m_resolvableRoles.insert("isExpandable");
-#ifdef HAVE_NEPOMUK
- m_resolvableRoles += KNepomukRolesProvider::instance().roles();
+#if HAVE_BALOO
+ m_resolvableRoles += KBalooRolesProvider::instance().roles();
#endif
+
+ m_directoryContentsCounter = new KDirectoryContentsCounter(m_model, this);
+ connect(m_directoryContentsCounter, &KDirectoryContentsCounter::result, this, &KFileItemModelRolesUpdater::slotDirectoryContentsCountReceived);
+
+ const auto plugins = KPluginMetaData::findPlugins(QStringLiteral("kf6/overlayicon"), {}, KPluginMetaData::AllowEmptyMetaData);
+ for (const KPluginMetaData &data : plugins) {
+ auto instance = QPluginLoader(data.fileName()).instance();
+ auto plugin = qobject_cast<KOverlayIconPlugin *>(instance);
+ if (plugin) {
+ m_overlayIconsPlugin.append(plugin);
+ connect(plugin, &KOverlayIconPlugin::overlaysChanged, this, &KFileItemModelRolesUpdater::slotOverlaysChanged);
+ } else {
+ // not our/valid plugin, so delete the created object
+ delete instance;
+ }
+ }
}
KFileItemModelRolesUpdater::~KFileItemModelRolesUpdater()
{
+ killPreviewJob();
}
-void KFileItemModelRolesUpdater::setIconSize(const QSize& size)
+void KFileItemModelRolesUpdater::setIconSize(const QSize &size)
{
if (size != m_iconSize) {
m_iconSize = size;
- if (m_paused) {
+ if (m_state == Paused) {
m_iconSizeChangedDuringPausing = true;
} else if (m_previewShown) {
// An icon size change requires the regenerating of
// all previews
- sortAndResolveAllRoles();
- } else {
- sortAndResolvePendingRoles();
+ m_finishedItems.clear();
+ startUpdating();
}
}
}
return m_iconSize;
}
+void KFileItemModelRolesUpdater::setDevicePixelRatio(qreal devicePixelRatio)
+{
+ if (m_devicePixelRatio != devicePixelRatio) {
+ m_devicePixelRatio = devicePixelRatio;
+ if (m_state == Paused) {
+ m_iconSizeChangedDuringPausing = true;
+ } else if (m_previewShown) {
+ // A dpr change requires the regenerating of all previews.
+ m_finishedItems.clear();
+ startUpdating();
+ }
+ }
+}
+
+qreal KFileItemModelRolesUpdater::devicePixelRatio() const
+{
+ return m_devicePixelRatio;
+}
+
void KFileItemModelRolesUpdater::setVisibleIndexRange(int index, int count)
{
if (index < 0) {
m_firstVisibleIndex = index;
m_lastVisibleIndex = qMin(index + count - 1, m_model->count() - 1);
- if (hasPendingRoles() && !m_paused) {
- sortAndResolvePendingRoles();
- }
+ startUpdating();
+}
+
+void KFileItemModelRolesUpdater::setMaximumVisibleItems(int count)
+{
+ m_maximumVisibleItems = count;
}
void KFileItemModelRolesUpdater::setPreviewsShown(bool show)
return m_enlargeSmallPreviews;
}
-void KFileItemModelRolesUpdater::setEnabledPlugins(const QStringList& list)
+void KFileItemModelRolesUpdater::setEnabledPlugins(const QStringList &list)
{
- if (m_enabledPlugins == list) {
+ if (m_enabledPlugins != list) {
m_enabledPlugins = list;
if (m_previewShown) {
updateAllPreviews();
void KFileItemModelRolesUpdater::setPaused(bool paused)
{
- if (paused == m_paused) {
+ if (paused == (m_state == Paused)) {
return;
}
- m_paused = paused;
if (paused) {
- if (hasPendingRoles()) {
- foreach (KJob* job, m_previewJobs) {
- job->kill();
- }
- Q_ASSERT(m_previewJobs.isEmpty());
- }
+ m_state = Paused;
+ killPreviewJob();
} else {
- const bool resolveAll = (m_iconSizeChangedDuringPausing && m_previewShown) ||
- m_previewChangedDuringPausing ||
- m_rolesChangedDuringPausing;
+ const bool updatePreviews = (m_iconSizeChangedDuringPausing && m_previewShown) || m_previewChangedDuringPausing;
+ const bool resolveAll = updatePreviews || m_rolesChangedDuringPausing;
if (resolveAll) {
- sortAndResolveAllRoles();
- } else {
- sortAndResolvePendingRoles();
+ m_finishedItems.clear();
}
m_iconSizeChangedDuringPausing = false;
m_previewChangedDuringPausing = false;
m_rolesChangedDuringPausing = false;
+
+ if (!m_pendingSortRoleItems.isEmpty()) {
+ m_state = ResolvingSortRole;
+ resolveNextSortRole();
+ } else {
+ m_state = Idle;
+ }
+
+ startUpdating();
}
}
-void KFileItemModelRolesUpdater::setRoles(const QSet<QByteArray>& roles)
+void KFileItemModelRolesUpdater::setRoles(const QSet<QByteArray> &roles)
{
if (m_roles != roles) {
m_roles = roles;
-#ifdef HAVE_NEPOMUK
+#if HAVE_BALOO
// Check whether there is at least one role that must be resolved
- // with the help of Nepomuk. If this is the case, a (quite expensive)
+ // with the help of Baloo. If this is the case, a (quite expensive)
// resolving will be done in KFileItemModelRolesUpdater::rolesData() and
// the role gets watched for changes.
- const KNepomukRolesProvider& rolesProvider = KNepomukRolesProvider::instance();
- bool hasNepomukRole = false;
+ const KBalooRolesProvider &rolesProvider = KBalooRolesProvider::instance();
+ bool hasBalooRole = false;
QSetIterator<QByteArray> it(roles);
while (it.hasNext()) {
- const QByteArray& role = it.next();
+ const QByteArray &role = it.next();
if (rolesProvider.roles().contains(role)) {
- hasNepomukRole = true;
+ hasBalooRole = true;
break;
}
}
- if (hasNepomukRole && !m_nepomukResourceWatcher) {
- Q_ASSERT(m_nepomukUriItems.isEmpty());
-
- m_nepomukResourceWatcher = new Nepomuk::ResourceWatcher(this);
- connect(m_nepomukResourceWatcher, SIGNAL(propertyChanged(Nepomuk::Resource,Nepomuk::Types::Property,QVariantList,QVariantList)),
- this, SLOT(applyChangedNepomukRoles(Nepomuk::Resource)));
- connect(m_nepomukResourceWatcher, SIGNAL(propertyRemoved(Nepomuk::Resource,Nepomuk::Types::Property,QVariant)),
- this, SLOT(applyChangedNepomukRoles(Nepomuk::Resource)));
- connect(m_nepomukResourceWatcher, SIGNAL(propertyAdded(Nepomuk::Resource,Nepomuk::Types::Property,QVariant)),
- this, SLOT(applyChangedNepomukRoles(Nepomuk::Resource)));
- connect(m_nepomukResourceWatcher, SIGNAL(resourceCreated(Nepomuk::Resource,QList<QUrl>)),
- this, SLOT(applyChangedNepomukRoles(Nepomuk::Resource)));
- } else if (!hasNepomukRole && m_nepomukResourceWatcher) {
- delete m_nepomukResourceWatcher;
- m_nepomukResourceWatcher = 0;
- m_nepomukUriItems.clear();
+ if (hasBalooRole && m_balooConfig.fileIndexingEnabled() && !m_balooFileMonitor) {
+ m_balooFileMonitor = new Baloo::FileMonitor(this);
+ connect(m_balooFileMonitor, &Baloo::FileMonitor::fileMetaDataChanged, this, &KFileItemModelRolesUpdater::applyChangedBalooRoles);
+ } else if (!hasBalooRole && m_balooFileMonitor) {
+ delete m_balooFileMonitor;
+ m_balooFileMonitor = nullptr;
}
#endif
- updateSortProgress();
-
- if (m_paused) {
+ if (m_state == Paused) {
m_rolesChangedDuringPausing = true;
} else {
- sortAndResolveAllRoles();
+ startUpdating();
}
}
}
bool KFileItemModelRolesUpdater::isPaused() const
{
- return m_paused;
+ return m_state == Paused;
}
QStringList KFileItemModelRolesUpdater::enabledPlugins() const
return m_enabledPlugins;
}
-void KFileItemModelRolesUpdater::slotItemsInserted(const KItemRangeList& itemRanges)
+void KFileItemModelRolesUpdater::setLocalFileSizePreviewLimit(const qlonglong size)
{
- startUpdating(itemRanges);
+ m_localFileSizePreviewLimit = size;
}
-void KFileItemModelRolesUpdater::slotItemsRemoved(const KItemRangeList& itemRanges)
+qlonglong KFileItemModelRolesUpdater::localFileSizePreviewLimit() const
{
- Q_UNUSED(itemRanges);
-
-#ifdef HAVE_NEPOMUK
- if (m_nepomukResourceWatcher) {
- // Don't let the ResourceWatcher watch for removed items
- if (m_model->count() == 0) {
- m_nepomukResourceWatcher->setResources(QList<Nepomuk::Resource>());
- m_nepomukUriItems.clear();
- } else {
- QList<Nepomuk::Resource> newResources;
- const QList<Nepomuk::Resource> oldResources = m_nepomukResourceWatcher->resources();
- foreach (const Nepomuk::Resource& resource, oldResources) {
- const QUrl uri = resource.resourceUri();
- const KUrl itemUrl = m_nepomukUriItems.value(uri);
- if (m_model->index(itemUrl) >= 0) {
- newResources.append(resource);
- } else {
- m_nepomukUriItems.remove(uri);
- }
- }
- m_nepomukResourceWatcher->setResources(newResources);
- }
+ return m_localFileSizePreviewLimit;
+}
+
+void KFileItemModelRolesUpdater::setHoverSequenceState(const QUrl &itemUrl, int seqIdx)
+{
+ const KFileItem item = m_model->fileItem(itemUrl);
+
+ if (item != m_hoverSequenceItem) {
+ killHoverSequencePreviewJob();
}
-#endif
- m_firstVisibleIndex = 0;
- m_lastVisibleIndex = -1;
- if (!hasPendingRoles()) {
+ m_hoverSequenceItem = item;
+ m_hoverSequenceIndex = seqIdx;
+
+ if (!m_previewShown) {
return;
}
- if (m_model->count() == 0) {
- // Most probably a directory change is done. Clear all pending items
- // and also kill all ongoing preview-jobs.
- resetPendingRoles();
+ m_hoverSequenceNumSuccessiveFailures = 0;
- m_changedItems.clear();
- m_changedItemsTimer->stop();
- } else {
- // Remove all items from m_pendingVisibleItems and m_pendingInvisibleItems
- // that are not part of the model anymore. The items from m_changedItems
- // don't need to be handled here, removed items are just skipped in
- // resolveChangedItems().
- for (int i = 0; i <= 1; ++i) {
- QSet<KFileItem>& pendingItems = (i == 0) ? m_pendingVisibleItems : m_pendingInvisibleItems;
- QMutableSetIterator<KFileItem> it(pendingItems);
- while (it.hasNext()) {
- const KFileItem item = it.next();
- if (m_model->index(item) < 0) {
- pendingItems.remove(item);
+ loadNextHoverSequencePreview();
+}
+
+void KFileItemModelRolesUpdater::slotItemsInserted(const KItemRangeList &itemRanges)
+{
+ QElapsedTimer timer;
+ timer.start();
+
+ // Determine the sort role synchronously for as many items as possible.
+ if (m_resolvableRoles.contains(m_model->sortRole())) {
+ int insertedCount = 0;
+ for (const KItemRange &range : itemRanges) {
+ const int lastIndex = insertedCount + range.index + range.count - 1;
+ for (int i = insertedCount + range.index; i <= lastIndex; ++i) {
+ if (timer.elapsed() < MaxBlockTimeout) {
+ applySortRole(i);
+ } else {
+ m_pendingSortRoleItems.insert(m_model->fileItem(i));
}
}
+ insertedCount += range.count;
+ }
+
+ applySortProgressToModel();
+
+ // If there are still items whose sort role is unknown, check if the
+ // asynchronous determination of the sort role is already in progress,
+ // and start it if that is not the case.
+ if (!m_pendingSortRoleItems.isEmpty() && m_state != ResolvingSortRole) {
+ killPreviewJob();
+ m_state = ResolvingSortRole;
+ resolveNextSortRole();
}
}
+
+ startUpdating();
}
-void KFileItemModelRolesUpdater::slotItemsChanged(const KItemRangeList& itemRanges,
- const QSet<QByteArray>& roles)
+void KFileItemModelRolesUpdater::slotItemsRemoved(const KItemRangeList &itemRanges)
{
- Q_UNUSED(roles);
+ Q_UNUSED(itemRanges)
+
+ const bool allItemsRemoved = (m_model->count() == 0);
+
+#if HAVE_BALOO
+ if (m_balooFileMonitor) {
+ // Don't let the FileWatcher watch for removed items
+ if (allItemsRemoved) {
+ m_balooFileMonitor->clear();
+ } else {
+ QStringList newFileList;
+ const QStringList oldFileList = m_balooFileMonitor->files();
+ for (const QString &file : oldFileList) {
+ if (m_model->index(QUrl::fromLocalFile(file)) >= 0) {
+ newFileList.append(file);
+ }
+ }
+ m_balooFileMonitor->setFiles(newFileList);
+ }
+ }
+#endif
+
+ if (allItemsRemoved) {
+ m_state = Idle;
+
+ m_finishedItems.clear();
+ m_pendingSortRoleItems.clear();
+ m_pendingIndexes.clear();
+ m_pendingPreviewItems.clear();
+ m_recentlyChangedItems.clear();
+ m_recentlyChangedItemsTimer->stop();
+ m_changedItems.clear();
+ m_hoverSequenceLoadedItems.clear();
+
+ killPreviewJob();
+ if (!m_model->showDirectoriesOnly()) {
+ m_directoryContentsCounter->stopWorker();
+ }
+ } else {
+ // Only remove the items from m_finishedItems. They will be removed
+ // from the other sets later on.
+ QSet<KFileItem>::iterator it = m_finishedItems.begin();
+ while (it != m_finishedItems.end()) {
+ if (m_model->index(*it) < 0) {
+ it = m_finishedItems.erase(it);
+ } else {
+ ++it;
+ }
+ }
- if (m_changedItemsTimer->isActive()) {
- // A call of slotItemsChanged() has been done recently. Postpone the resolving
- // of the roles until the timer has exceeded.
- foreach (const KItemRange& itemRange, itemRanges) {
+ // Removed items won't have hover previews loaded anymore.
+ for (const KItemRange &itemRange : itemRanges) {
int index = itemRange.index;
for (int count = itemRange.count; count > 0; --count) {
- m_changedItems.insert(m_model->fileItem(index));
+ const KFileItem item = m_model->fileItem(index);
+ m_hoverSequenceLoadedItems.remove(item);
++index;
}
}
- } else {
- // No call of slotItemsChanged() has been done recently, resolve the roles now.
- startUpdating(itemRanges);
+
+ // The visible items might have changed.
+ startUpdating();
}
- m_changedItemsTimer->start();
}
-void KFileItemModelRolesUpdater::slotSortRoleChanged(const QByteArray& current,
- const QByteArray& previous)
+void KFileItemModelRolesUpdater::slotItemsMoved(KItemRange itemRange, const QList<int> &movedToIndexes)
{
- Q_UNUSED(current);
- Q_UNUSED(previous);
- updateSortProgress();
+ Q_UNUSED(itemRange)
+ Q_UNUSED(movedToIndexes)
+
+ // The visible items might have changed.
+ startUpdating();
}
-void KFileItemModelRolesUpdater::slotGotPreview(const KFileItem& item, const QPixmap& pixmap)
+void KFileItemModelRolesUpdater::slotItemsChanged(const KItemRangeList &itemRanges, const QSet<QByteArray> &roles)
{
- m_pendingVisibleItems.remove(item);
- m_pendingInvisibleItems.remove(item);
+ Q_UNUSED(roles)
- const int index = m_model->index(item);
- if (index < 0) {
- return;
+ // Find out if slotItemsChanged() has been done recently. If that is the
+ // case, resolving the roles is postponed until a timer has exceeded
+ // to prevent expensive repeated updates if files are updated frequently.
+ const bool itemsChangedRecently = m_recentlyChangedItemsTimer->isActive();
+
+ QSet<KFileItem> &targetSet = itemsChangedRecently ? m_recentlyChangedItems : m_changedItems;
+
+ for (const KItemRange &itemRange : itemRanges) {
+ int index = itemRange.index;
+ for (int count = itemRange.count; count > 0; --count) {
+ const KFileItem item = m_model->fileItem(index);
+ targetSet.insert(item);
+ ++index;
+ }
}
- QPixmap scaledPixmap = pixmap;
+ m_recentlyChangedItemsTimer->start();
- const QString mimeType = item.mimetype();
- const int slashIndex = mimeType.indexOf(QLatin1Char('/'));
- const QString mimeTypeGroup = mimeType.left(slashIndex);
- if (mimeTypeGroup == QLatin1String("image")) {
- if (m_enlargeSmallPreviews) {
- KPixmapModifier::applyFrame(scaledPixmap, m_iconSize);
- } else {
- // Assure that small previews don't get enlarged. Instead they
- // should be shown centered within the frame.
- const QSize contentSize = KPixmapModifier::sizeInsideFrame(m_iconSize);
- const bool enlargingRequired = scaledPixmap.width() < contentSize.width() &&
- scaledPixmap.height() < contentSize.height();
- if (enlargingRequired) {
- QSize frameSize = scaledPixmap.size();
- frameSize.scale(m_iconSize, Qt::KeepAspectRatio);
+ if (!itemsChangedRecently) {
+ updateChangedItems();
+ }
+}
- QPixmap largeFrame(frameSize);
- largeFrame.fill(Qt::transparent);
+void KFileItemModelRolesUpdater::slotSortRoleChanged(const QByteArray ¤t, const QByteArray &previous)
+{
+ Q_UNUSED(current)
+ Q_UNUSED(previous)
- KPixmapModifier::applyFrame(largeFrame, frameSize);
+ if (m_resolvableRoles.contains(current)) {
+ m_pendingSortRoleItems.clear();
+ m_finishedItems.clear();
- QPainter painter(&largeFrame);
- painter.drawPixmap((largeFrame.width() - scaledPixmap.width()) / 2,
- (largeFrame.height() - scaledPixmap.height()) / 2,
- scaledPixmap);
- scaledPixmap = largeFrame;
+ const int count = m_model->count();
+ QElapsedTimer timer;
+ timer.start();
+
+ // Determine the sort role synchronously for as many items as possible.
+ for (int index = 0; index < count; ++index) {
+ if (timer.elapsed() < MaxBlockTimeout) {
+ applySortRole(index);
} else {
- // The image must be shrinked as it is too large to fit into
- // the available icon size
- KPixmapModifier::applyFrame(scaledPixmap, m_iconSize);
+ m_pendingSortRoleItems.insert(m_model->fileItem(index));
}
}
+
+ applySortProgressToModel();
+
+ if (!m_pendingSortRoleItems.isEmpty()) {
+ // Trigger the asynchronous determination of the sort role.
+ killPreviewJob();
+ m_state = ResolvingSortRole;
+ resolveNextSortRole();
+ }
} else {
- KPixmapModifier::scale(scaledPixmap, m_iconSize);
+ m_state = Idle;
+ m_pendingSortRoleItems.clear();
+ applySortProgressToModel();
+ }
+}
+
+void KFileItemModelRolesUpdater::slotGotPreview(const KFileItem &item, const QPixmap &pixmap)
+{
+ if (m_state != PreviewJobRunning) {
+ return;
+ }
+
+ m_changedItems.remove(item);
+
+ const int index = m_model->index(item);
+ if (index < 0) {
+ return;
+ }
+
+ QPixmap scaledPixmap = transformPreviewPixmap(pixmap);
+
+ QHash<QByteArray, QVariant> data = rolesData(item, index);
+
+ const QStringList overlays = data["iconOverlays"].toStringList();
+ // Strangely KFileItem::overlays() returns empty string-values, so
+ // we need to check first whether an overlay must be drawn at all.
+ if (!scaledPixmap.isNull()) {
+ for (const QString &overlay : overlays) {
+ if (!overlay.isEmpty()) {
+ // There is at least one overlay, draw all overlays above m_pixmap
+ // and cancel the check
+ const QSize size = scaledPixmap.size();
+ scaledPixmap = KIconUtils::addOverlays(scaledPixmap, overlays).pixmap(size);
+ break;
+ }
+ }
}
- QHash<QByteArray, QVariant> data = rolesData(item);
data.insert("iconPixmap", scaledPixmap);
- disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
- this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ disconnect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
m_model->setData(index, data);
- connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
- this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ connect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
- applySortProgressToModel();
+ m_finishedItems.insert(item);
}
-void KFileItemModelRolesUpdater::slotPreviewFailed(const KFileItem& item)
+void KFileItemModelRolesUpdater::slotPreviewFailed(const KFileItem &item)
{
- m_pendingVisibleItems.remove(item);
- m_pendingInvisibleItems.remove(item);
+ if (m_state != PreviewJobRunning) {
+ return;
+ }
+
+ m_changedItems.remove(item);
- const bool clearPreviews = m_clearPreviews;
- m_clearPreviews = true;
- applyResolvedRoles(item, ResolveAll);
- m_clearPreviews = clearPreviews;
+ const int index = m_model->index(item);
+ if (index >= 0) {
+ QHash<QByteArray, QVariant> data;
+ data.insert("iconPixmap", QPixmap());
+
+ disconnect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
+ m_model->setData(index, data);
+ connect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
- applySortProgressToModel();
+ applyResolvedRoles(index, ResolveAll);
+ m_finishedItems.insert(item);
+ }
}
-void KFileItemModelRolesUpdater::slotPreviewJobFinished(KJob* job)
+void KFileItemModelRolesUpdater::slotPreviewJobFinished()
{
-#ifdef KFILEITEMMODELROLESUPDATER_DEBUG
- kDebug() << "Preview job finished. Pending visible:" << m_pendingVisibleItems.count() << "invisible:" << m_pendingInvisibleItems.count();
-#endif
+ m_previewJob = nullptr;
- m_previewJobs.removeOne(job);
- if (!m_previewJobs.isEmpty() || !hasPendingRoles()) {
+ if (m_state != PreviewJobRunning) {
return;
}
- const KFileItemList visibleItems = sortedItems(m_pendingVisibleItems);
- startPreviewJob(visibleItems + m_pendingInvisibleItems.toList());
+ m_state = Idle;
+
+ if (!m_pendingPreviewItems.isEmpty()) {
+ startPreviewJob();
+ } else {
+ if (!m_changedItems.isEmpty()) {
+ updateChangedItems();
+ }
+ }
}
-void KFileItemModelRolesUpdater::resolveNextPendingRoles()
+void KFileItemModelRolesUpdater::slotHoverSequenceGotPreview(const KFileItem &item, const QPixmap &pixmap)
{
- if (m_paused) {
+ const int index = m_model->index(item);
+ if (index < 0) {
return;
}
- if (m_previewShown) {
- // The preview has been turned on since the last run. Skip
- // resolving further pending roles as this is done as soon
- // as a preview has been received.
- return;
+ QHash<QByteArray, QVariant> data = m_model->data(index);
+ QVector<QPixmap> pixmaps = data["hoverSequencePixmaps"].value<QVector<QPixmap>>();
+ const int loadedIndex = pixmaps.size();
+
+ float wap = m_hoverSequencePreviewJob->sequenceIndexWraparoundPoint();
+ if (!m_hoverSequencePreviewJob->handlesSequences()) {
+ wap = 1.0f;
}
+ if (wap >= 0.0f) {
+ data["hoverSequenceWraparoundPoint"] = wap;
+ m_model->setData(index, data);
+ }
+
+ // For hover sequence previews we never load index 0, because that's just the regular preview
+ // in "iconPixmap". But that means we'll load index 1 even for thumbnailers that don't support
+ // sequences, in which case we can just throw away the preview because it's the same as for
+ // index 0. Unfortunately we can't find it out earlier :(
+ if (wap < 0.0f || loadedIndex < static_cast<int>(wap)) {
+ // Add the preview to the model data
+
+ const QPixmap scaledPixmap = transformPreviewPixmap(pixmap);
- int resolvedCount = 0;
- bool changed = false;
- for (int i = 0; i <= 1; ++i) {
- QSet<KFileItem>& pendingItems = (i == 0) ? m_pendingVisibleItems : m_pendingInvisibleItems;
- QSetIterator<KFileItem> it(pendingItems);
- while (it.hasNext() && !changed && resolvedCount < MaxResolveItemsCount) {
- const KFileItem item = it.next();
- pendingItems.remove(item);
- changed = applyResolvedRoles(item, ResolveAll);
- ++resolvedCount;
+ pixmaps.append(scaledPixmap);
+ data["hoverSequencePixmaps"] = QVariant::fromValue(pixmaps);
+
+ m_model->setData(index, data);
+
+ const auto loadedIt = std::find(m_hoverSequenceLoadedItems.begin(), m_hoverSequenceLoadedItems.end(), item);
+ if (loadedIt == m_hoverSequenceLoadedItems.end()) {
+ m_hoverSequenceLoadedItems.push_back(item);
+ trimHoverSequenceLoadedItems();
}
}
- if (hasPendingRoles()) {
- QTimer::singleShot(0, this, SLOT(resolveNextPendingRoles()));
- } else {
- m_clearPreviews = false;
+ m_hoverSequenceNumSuccessiveFailures = 0;
+}
+
+void KFileItemModelRolesUpdater::slotHoverSequencePreviewFailed(const KFileItem &item)
+{
+ const int index = m_model->index(item);
+ if (index < 0) {
+ return;
}
- applySortProgressToModel();
+ static const int numRetries = 2;
+
+ QHash<QByteArray, QVariant> data = m_model->data(index);
+ QVector<QPixmap> pixmaps = data["hoverSequencePixmaps"].value<QVector<QPixmap>>();
+
+ qCDebug(DolphinDebug).nospace() << "Failed to generate hover sequence preview #" << pixmaps.size() << " for file " << item.url().toString() << " (attempt "
+ << (m_hoverSequenceNumSuccessiveFailures + 1) << "/" << (numRetries + 1) << ")";
+
+ if (m_hoverSequenceNumSuccessiveFailures >= numRetries) {
+ // Give up and simply duplicate the previous sequence image (if any)
+
+ pixmaps.append(pixmaps.empty() ? QPixmap() : pixmaps.last());
+ data["hoverSequencePixmaps"] = QVariant::fromValue(pixmaps);
+
+ if (!data.contains("hoverSequenceWraparoundPoint")) {
+ // hoverSequenceWraparoundPoint is only available when PreviewJob succeeds, so unless
+ // it has previously succeeded, it's best to assume that it just doesn't handle
+ // sequences instead of trying to load the next image indefinitely.
+ data["hoverSequenceWraparoundPoint"] = 1.0f;
+ }
+
+ m_model->setData(index, data);
+
+ m_hoverSequenceNumSuccessiveFailures = 0;
+ } else {
+ // Retry
-#ifdef KFILEITEMMODELROLESUPDATER_DEBUG
- static int callCount = 0;
- ++callCount;
- if (callCount % 100 == 0) {
- kDebug() << "Remaining visible roles to resolve:" << m_pendingVisibleItems.count()
- << "invisible:" << m_pendingInvisibleItems.count();
+ m_hoverSequenceNumSuccessiveFailures++;
}
-#endif
+
+ // Next image in the sequence (or same one if the retry limit wasn't reached yet) will be
+ // loaded automatically, because slotHoverSequencePreviewJobFinished() will be triggered
+ // even when PreviewJob fails.
}
-void KFileItemModelRolesUpdater::resolveChangedItems()
+void KFileItemModelRolesUpdater::slotHoverSequencePreviewJobFinished()
{
- if (m_changedItems.isEmpty()) {
+ const int index = m_model->index(m_hoverSequenceItem);
+ if (index < 0) {
+ m_hoverSequencePreviewJob = nullptr;
return;
}
- KItemRangeList itemRanges;
+ // Since a PreviewJob can only have one associated sequence index, we can only generate
+ // one sequence image per job, so we have to start another one for the next index.
- QSetIterator<KFileItem> it(m_changedItems);
- while (it.hasNext()) {
- const KFileItem& item = it.next();
+ // Load the next image in the sequence
+ m_hoverSequencePreviewJob = nullptr;
+ loadNextHoverSequencePreview();
+}
+
+void KFileItemModelRolesUpdater::resolveNextSortRole()
+{
+ if (m_state != ResolvingSortRole) {
+ return;
+ }
+
+ QSet<KFileItem>::iterator it = m_pendingSortRoleItems.begin();
+ while (it != m_pendingSortRoleItems.end()) {
+ const KFileItem item = *it;
const int index = m_model->index(item);
- if (index >= 0) {
- itemRanges.append(KItemRange(index, 1));
+
+ // Continue if the sort role has already been determined for the
+ // item, and the item has not been changed recently.
+ if (!m_changedItems.contains(item) && m_model->data(index).contains(m_model->sortRole())) {
+ it = m_pendingSortRoleItems.erase(it);
+ continue;
}
+
+ applySortRole(index);
+ m_pendingSortRoleItems.erase(it);
+ break;
}
- m_changedItems.clear();
- startUpdating(itemRanges);
+ if (!m_pendingSortRoleItems.isEmpty()) {
+ applySortProgressToModel();
+ QTimer::singleShot(0, this, &KFileItemModelRolesUpdater::resolveNextSortRole);
+ } else {
+ m_state = Idle;
+
+ // Prevent that we try to update the items twice.
+ disconnect(m_model, &KFileItemModel::itemsMoved, this, &KFileItemModelRolesUpdater::slotItemsMoved);
+ applySortProgressToModel();
+ connect(m_model, &KFileItemModel::itemsMoved, this, &KFileItemModelRolesUpdater::slotItemsMoved);
+ startUpdating();
+ }
}
-void KFileItemModelRolesUpdater::applyChangedNepomukRoles(const Nepomuk::Resource& resource)
+void KFileItemModelRolesUpdater::resolveNextPendingRoles()
{
-#ifdef HAVE_NEPOMUK
- const KUrl itemUrl = m_nepomukUriItems.value(resource.resourceUri());
- const KFileItem item = m_model->fileItem(itemUrl);
- QHash<QByteArray, QVariant> data = rolesData(item);
+ if (m_state != ResolvingAllRoles) {
+ return;
+ }
+
+ while (!m_pendingIndexes.isEmpty()) {
+ const int index = m_pendingIndexes.takeFirst();
+ const KFileItem item = m_model->fileItem(index);
+
+ if (m_finishedItems.contains(item)) {
+ continue;
+ }
+
+ applyResolvedRoles(index, ResolveAll);
+ m_finishedItems.insert(item);
+ m_changedItems.remove(item);
+ break;
+ }
+
+ if (!m_pendingIndexes.isEmpty()) {
+ QTimer::singleShot(0, this, &KFileItemModelRolesUpdater::resolveNextPendingRoles);
+ } else {
+ m_state = Idle;
+
+ if (m_clearPreviews) {
+ // Only go through the list if there are items which might still have previews.
+ if (m_finishedItems.count() != m_model->count()) {
+ QHash<QByteArray, QVariant> data;
+ data.insert("iconPixmap", QPixmap());
+ data.insert("hoverSequencePixmaps", QVariant::fromValue(QVector<QPixmap>()));
+
+ disconnect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
+ for (int index = 0; index <= m_model->count(); ++index) {
+ if (m_model->data(index).contains("iconPixmap") || m_model->data(index).contains("hoverSequencePixmaps")) {
+ m_model->setData(index, data);
+ }
+ }
+ connect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
+ }
+ m_clearPreviews = false;
+ }
+
+ if (!m_changedItems.isEmpty()) {
+ updateChangedItems();
+ }
+ }
+}
+
+void KFileItemModelRolesUpdater::resolveRecentlyChangedItems()
+{
+ m_changedItems += m_recentlyChangedItems;
+ m_recentlyChangedItems.clear();
+ updateChangedItems();
+}
+
+void KFileItemModelRolesUpdater::applyChangedBalooRoles(const QString &file)
+{
+#if HAVE_BALOO
+ const KFileItem item = m_model->fileItem(QUrl::fromLocalFile(file));
- const KNepomukRolesProvider& rolesProvider = KNepomukRolesProvider::instance();
- QHashIterator<QByteArray, QVariant> it(rolesProvider.roleValues(resource, m_roles));
+ if (item.isNull()) {
+ // itemUrl is not in the model anymore, probably because
+ // the corresponding file has been deleted in the meantime.
+ return;
+ }
+ applyChangedBalooRolesForItem(item);
+#else
+ Q_UNUSED(file)
+#endif
+}
+
+void KFileItemModelRolesUpdater::applyChangedBalooRolesForItem(const KFileItem &item)
+{
+#if HAVE_BALOO
+ Baloo::File file(item.localPath());
+ file.load();
+
+ const KBalooRolesProvider &rolesProvider = KBalooRolesProvider::instance();
+ QHash<QByteArray, QVariant> data;
+
+ const auto roles = rolesProvider.roles();
+ for (const QByteArray &role : roles) {
+ // Overwrite all the role values with an empty QVariant, because the roles
+ // provider doesn't overwrite it when the property value list is empty.
+ // See bug 322348
+ data.insert(role, QVariant());
+ }
+
+ QHashIterator<QByteArray, QVariant> it(rolesProvider.roleValues(file, m_roles));
while (it.hasNext()) {
it.next();
data.insert(it.key(), it.value());
}
- disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
- this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ disconnect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
const int index = m_model->index(item);
m_model->setData(index, data);
- connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
- this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ connect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
#else
- Q_UNUSED(resource);
+#ifndef Q_CC_MSVC
+ Q_UNUSED(item)
+#endif
#endif
}
-void KFileItemModelRolesUpdater::startUpdating(const KItemRangeList& itemRanges)
+void KFileItemModelRolesUpdater::slotDirectoryContentsCountReceived(const QString &path, int count, long long size)
{
- // If no valid index range is given assume that all items are visible.
- // A cleanup will be done later as soon as the index range has been set.
- const bool hasValidIndexRange = (m_lastVisibleIndex >= 0);
-
- if (hasValidIndexRange) {
- // Move all current pending visible items that are not visible anymore
- // to the pending invisible items.
- QSetIterator<KFileItem> it(m_pendingVisibleItems);
- while (it.hasNext()) {
- const KFileItem item = it.next();
- const int index = m_model->index(item);
- if (index < m_firstVisibleIndex || index > m_lastVisibleIndex) {
- m_pendingVisibleItems.remove(item);
- m_pendingInvisibleItems.insert(item);
+ const bool getIsExpandableRole = m_roles.contains("isExpandable");
+ const bool getSizeRole = m_roles.contains("size");
+
+ if (getSizeRole || getIsExpandableRole) {
+ const int index = m_model->index(QUrl::fromLocalFile(path));
+ if (index >= 0) {
+ QHash<QByteArray, QVariant> data;
+
+ if (getSizeRole) {
+ data.insert("count", count);
+ data.insert("size", QVariant::fromValue(size));
+ }
+ if (getIsExpandableRole) {
+ data.insert("isExpandable", count > 0);
}
+
+ disconnect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
+ m_model->setData(index, data);
+ connect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
}
}
+}
+
+void KFileItemModelRolesUpdater::startUpdating()
+{
+ if (m_state == Paused) {
+ return;
+ }
+
+ if (m_finishedItems.count() == m_model->count()) {
+ // All roles have been resolved already.
+ m_state = Idle;
+ return;
+ }
- int rangesCount = 0;
+ // Terminate all updates that are currently active.
+ killPreviewJob();
+ m_pendingIndexes.clear();
+
+ QElapsedTimer timer;
+ timer.start();
- foreach (const KItemRange& range, itemRanges) {
- rangesCount += range.count;
+ // Determine the icons for the visible items synchronously.
+ updateVisibleIcons();
- // Add the inserted items to the pending visible and invisible items
- const int lastIndex = range.index + range.count - 1;
- for (int i = range.index; i <= lastIndex; ++i) {
- const KFileItem item = m_model->fileItem(i);
- if (!hasValidIndexRange || (i >= m_firstVisibleIndex && i <= m_lastVisibleIndex)) {
- m_pendingVisibleItems.insert(item);
- } else {
- m_pendingInvisibleItems.insert(item);
+ // A detailed update of the items in and near the visible area
+ // only makes sense if sorting is finished.
+ if (m_state == ResolvingSortRole) {
+ return;
+ }
+
+ // Start the preview job or the asynchronous resolving of all roles.
+ QList<int> indexes = indexesToResolve();
+
+ if (m_previewShown) {
+ m_pendingPreviewItems.clear();
+ m_pendingPreviewItems.reserve(indexes.count());
+
+ for (int index : std::as_const(indexes)) {
+ const KFileItem item = m_model->fileItem(index);
+ if (!m_finishedItems.contains(item)) {
+ m_pendingPreviewItems.append(item);
}
}
+
+ startPreviewJob();
+ } else {
+ m_pendingIndexes = indexes;
+ // Trigger the asynchronous resolving of all roles.
+ m_state = ResolvingAllRoles;
+ QTimer::singleShot(0, this, &KFileItemModelRolesUpdater::resolveNextPendingRoles);
+ }
+}
+
+void KFileItemModelRolesUpdater::updateVisibleIcons()
+{
+ int lastVisibleIndex = m_lastVisibleIndex;
+ if (lastVisibleIndex <= 0) {
+ // Guess a reasonable value for the last visible index if the view
+ // has not told us about the real value yet.
+ lastVisibleIndex = qMin(m_firstVisibleIndex + m_maximumVisibleItems, m_model->count() - 1);
+ if (lastVisibleIndex <= 0) {
+ lastVisibleIndex = qMin(200, m_model->count() - 1);
+ }
+ }
+
+ QElapsedTimer timer;
+ timer.start();
+
+ // Try to determine the final icons for all visible items.
+ int index;
+ for (index = m_firstVisibleIndex; index <= lastVisibleIndex && timer.elapsed() < MaxBlockTimeout; ++index) {
+ applyResolvedRoles(index, ResolveFast);
}
- resolvePendingRoles();
+ // KFileItemListView::initializeItemListWidget(KItemListWidget*) will load
+ // preliminary icons (i.e., without mime type determination) for the
+ // remaining items.
}
-void KFileItemModelRolesUpdater::startPreviewJob(const KFileItemList& items)
+void KFileItemModelRolesUpdater::startPreviewJob()
{
- if (items.isEmpty() || m_paused) {
+ m_state = PreviewJobRunning;
+
+ if (m_pendingPreviewItems.isEmpty()) {
+ QTimer::singleShot(0, this, &KFileItemModelRolesUpdater::slotPreviewJobFinished);
return;
}
// by PreviewJob if a smaller size is requested. For images KFileItemModelRolesUpdater must
// do a downscaling anyhow because of the frame, so in this case only the provided
// cache sizes are requested.
- const QSize cacheSize = (m_iconSize.width() > 128) || (m_iconSize.height() > 128)
- ? QSize(256, 256) : QSize(128, 128);
+ const QSize cacheSize = (m_iconSize.width() > 128) || (m_iconSize.height() > 128) ? QSize(256, 256) : QSize(128, 128);
// KIO::filePreview() will request the MIME-type of all passed items, which (in the
// worst case) might block the application for several seconds. To prevent such
- // a blocking the MIME-type of the items will determined until the MaxBlockTimeout
- // has been reached and only those items will get passed. As soon as the MIME-type
- // has been resolved once KIO::PreviewJob() can already access the resolved
- // MIME-type in a fast way.
- QElapsedTimer timer;
- timer.start();
+ // a blocking, we only pass items with known mime type to the preview job.
+ const int count = m_pendingPreviewItems.count();
KFileItemList itemSubSet;
- for (int i = 0; i < items.count(); ++i) {
- KFileItem item = items.at(i);
- item.determineMimeType();
- itemSubSet.append(items.at(i));
- if (timer.elapsed() > MaxBlockTimeout) {
-#ifdef KFILEITEMMODELROLESUPDATER_DEBUG
- kDebug() << "Maximum time of" << MaxBlockTimeout << "ms exceeded, creating only previews for"
- << (i + 1) << "items," << (items.count() - (i + 1)) << "will be resolved later";
-#endif
- break;
- }
+ itemSubSet.reserve(count);
+
+ if (m_pendingPreviewItems.first().isMimeTypeKnown()) {
+ // Some mime types are known already, probably because they were
+ // determined when loading the icons for the visible items. Start
+ // a preview job for all items at the beginning of the list which
+ // have a known mime type.
+ do {
+ itemSubSet.append(m_pendingPreviewItems.takeFirst());
+ } while (!m_pendingPreviewItems.isEmpty() && m_pendingPreviewItems.first().isMimeTypeKnown());
+ } else {
+ // Determine mime types for MaxBlockTimeout ms, and start a preview
+ // job for the corresponding items.
+ QElapsedTimer timer;
+ timer.start();
+
+ do {
+ const KFileItem item = m_pendingPreviewItems.takeFirst();
+ item.determineMimeType();
+ itemSubSet.append(item);
+ } while (!m_pendingPreviewItems.isEmpty() && timer.elapsed() < MaxBlockTimeout);
}
- KIO::PreviewJob* job = new KIO::PreviewJob(itemSubSet, cacheSize, &m_enabledPlugins);
- job->setIgnoreMaximumSize(items.first().isLocalFile());
- if (job->ui()) {
- job->ui()->setWindow(qApp->activeWindow());
+
+ KIO::PreviewJob *job = new KIO::PreviewJob(itemSubSet, cacheSize, &m_enabledPlugins);
+ job->setDevicePixelRatio(m_devicePixelRatio);
+ job->setIgnoreMaximumSize(itemSubSet.first().isLocalFile() && !itemSubSet.first().isSlow() && m_localFileSizePreviewLimit <= 0);
+ if (job->uiDelegate()) {
+ KJobWidgets::setWindow(job, qApp->activeWindow());
}
- connect(job, SIGNAL(gotPreview(KFileItem,QPixmap)),
- this, SLOT(slotGotPreview(KFileItem,QPixmap)));
- connect(job, SIGNAL(failed(KFileItem)),
- this, SLOT(slotPreviewFailed(KFileItem)));
- connect(job, SIGNAL(finished(KJob*)),
- this, SLOT(slotPreviewJobFinished(KJob*)));
+ connect(job, &KIO::PreviewJob::gotPreview, this, &KFileItemModelRolesUpdater::slotGotPreview);
+ connect(job, &KIO::PreviewJob::failed, this, &KFileItemModelRolesUpdater::slotPreviewFailed);
+ connect(job, &KIO::PreviewJob::finished, this, &KFileItemModelRolesUpdater::slotPreviewJobFinished);
- m_previewJobs.append(job);
+ m_previewJob = job;
}
-
-bool KFileItemModelRolesUpdater::hasPendingRoles() const
+QPixmap KFileItemModelRolesUpdater::transformPreviewPixmap(const QPixmap &pixmap)
{
- return !m_pendingVisibleItems.isEmpty() || !m_pendingInvisibleItems.isEmpty();
-}
+ QPixmap scaledPixmap = pixmap;
-void KFileItemModelRolesUpdater::resolvePendingRoles()
-{
- int resolvedCount = 0;
+ if (!pixmap.hasAlpha() && !pixmap.isNull() && m_iconSize.width() > KIconLoader::SizeSmallMedium && m_iconSize.height() > KIconLoader::SizeSmallMedium) {
+ if (m_enlargeSmallPreviews) {
+ KPixmapModifier::applyFrame(scaledPixmap, m_iconSize);
+ } else {
+ // Assure that small previews don't get enlarged. Instead they
+ // should be shown centered within the frame.
+ const QSize contentSize = KPixmapModifier::sizeInsideFrame(m_iconSize);
+ const bool enlargingRequired = scaledPixmap.width() < contentSize.width() && scaledPixmap.height() < contentSize.height();
+ if (enlargingRequired) {
+ QSize frameSize = scaledPixmap.size() / scaledPixmap.devicePixelRatio();
+ frameSize.scale(m_iconSize, Qt::KeepAspectRatio);
- bool hasSlowRoles = m_previewShown;
- if (!hasSlowRoles) {
- QSetIterator<QByteArray> it(m_roles);
- while (it.hasNext()) {
- if (m_resolvableRoles.contains(it.next())) {
- hasSlowRoles = true;
- break;
+ QPixmap largeFrame(frameSize);
+ largeFrame.fill(Qt::transparent);
+
+ KPixmapModifier::applyFrame(largeFrame, frameSize);
+
+ QPainter painter(&largeFrame);
+ painter.drawPixmap((largeFrame.width() - scaledPixmap.width() / scaledPixmap.devicePixelRatio()) / 2,
+ (largeFrame.height() - scaledPixmap.height() / scaledPixmap.devicePixelRatio()) / 2,
+ scaledPixmap);
+ scaledPixmap = largeFrame;
+ } else {
+ // The image must be shrunk as it is too large to fit into
+ // the available icon size
+ KPixmapModifier::applyFrame(scaledPixmap, m_iconSize);
}
}
+ } else if (!pixmap.isNull()) {
+ KPixmapModifier::scale(scaledPixmap, m_iconSize * m_devicePixelRatio);
+ scaledPixmap.setDevicePixelRatio(m_devicePixelRatio);
}
- const ResolveHint resolveHint = hasSlowRoles ? ResolveFast : ResolveAll;
-
- // Resolving the MIME type can be expensive. Assure that not more than MaxBlockTimeout ms are
- // spend for resolving them synchronously. Usually this is more than enough to determine
- // all visible items, but there are corner cases where this limit gets easily exceeded.
- QElapsedTimer timer;
- timer.start();
+ return scaledPixmap;
+}
- // Resolve the MIME type of all visible items
- QSetIterator<KFileItem> visibleIt(m_pendingVisibleItems);
- while (visibleIt.hasNext()) {
- const KFileItem item = visibleIt.next();
- if (!hasSlowRoles) {
- Q_ASSERT(!m_pendingInvisibleItems.contains(item));
- // All roles will be resolved by applyResolvedRoles()
- m_pendingVisibleItems.remove(item);
- }
- applyResolvedRoles(item, resolveHint);
- ++resolvedCount;
+void KFileItemModelRolesUpdater::loadNextHoverSequencePreview()
+{
+ if (m_hoverSequenceItem.isNull() || m_hoverSequencePreviewJob) {
+ return;
+ }
- if (timer.elapsed() > MaxBlockTimeout) {
- break;
- }
+ const int index = m_model->index(m_hoverSequenceItem);
+ if (index < 0) {
+ return;
}
- // Resolve the MIME type of the invisible items at least until the timeout
- // has been exceeded or the maximum number of items has been reached
- KFileItemList invisibleItems;
- if (m_lastVisibleIndex >= 0) {
- // The visible range is valid, don't care about the order how the MIME
- // type of invisible items get resolved
- invisibleItems = m_pendingInvisibleItems.toList();
- } else {
- // The visible range is temporary invalid (e.g. happens when loading
- // a directory) so take care to sort the currently invisible items where
- // a part will get visible later
- invisibleItems = sortedItems(m_pendingInvisibleItems);
+ // We generate the next few sequence indices in advance (buffering)
+ const int maxSeqIdx = m_hoverSequenceIndex + 5;
+
+ QHash<QByteArray, QVariant> data = m_model->data(index);
+
+ if (!data.contains("hoverSequencePixmaps")) {
+ // The pixmap at index 0 isn't used ("iconPixmap" will be used instead)
+ data.insert("hoverSequencePixmaps", QVariant::fromValue(QVector<QPixmap>() << QPixmap()));
+ m_model->setData(index, data);
}
- int index = 0;
- while (resolvedCount < MaxResolveItemsCount && index < invisibleItems.count() && timer.elapsed() <= MaxBlockTimeout) {
- const KFileItem item = invisibleItems.at(index);
- applyResolvedRoles(item, resolveHint);
+ const QVector<QPixmap> pixmaps = data["hoverSequencePixmaps"].value<QVector<QPixmap>>();
- if (!hasSlowRoles) {
- // All roles have been resolved already by applyResolvedRoles()
- m_pendingInvisibleItems.remove(item);
- }
- ++index;
- ++resolvedCount;
+ const int loadSeqIdx = pixmaps.size();
+
+ float wap = -1.0f;
+ if (data.contains("hoverSequenceWraparoundPoint")) {
+ wap = data["hoverSequenceWraparoundPoint"].toFloat();
+ }
+ if (wap >= 1.0f && loadSeqIdx >= static_cast<int>(wap)) {
+ // Reached the wraparound point -> no more previews to load.
+ return;
}
- if (m_previewShown) {
- KFileItemList items = sortedItems(m_pendingVisibleItems);
- items += invisibleItems;
- startPreviewJob(items);
- } else {
- QTimer::singleShot(0, this, SLOT(resolveNextPendingRoles()));
+ if (loadSeqIdx > maxSeqIdx) {
+ // Wait until setHoverSequenceState() is called with a higher sequence index.
+ return;
}
-#ifdef KFILEITEMMODELROLESUPDATER_DEBUG
- if (timer.elapsed() > MaxBlockTimeout) {
- kDebug() << "Maximum time of" << MaxBlockTimeout
- << "ms exceeded, skipping items... Remaining visible:" << m_pendingVisibleItems.count()
- << "invisible:" << m_pendingInvisibleItems.count();
+ // PreviewJob internally caches items always with the size of
+ // 128 x 128 pixels or 256 x 256 pixels. A (slow) downscaling is done
+ // by PreviewJob if a smaller size is requested. For images KFileItemModelRolesUpdater must
+ // do a downscaling anyhow because of the frame, so in this case only the provided
+ // cache sizes are requested.
+ const QSize cacheSize = (m_iconSize.width() > 128) || (m_iconSize.height() > 128) ? QSize(256, 256) : QSize(128, 128);
+
+ KIO::PreviewJob *job = new KIO::PreviewJob({m_hoverSequenceItem}, cacheSize, &m_enabledPlugins);
+
+ job->setSequenceIndex(loadSeqIdx);
+ job->setIgnoreMaximumSize(m_hoverSequenceItem.isLocalFile() && !m_hoverSequenceItem.isSlow() && m_localFileSizePreviewLimit <= 0);
+ if (job->uiDelegate()) {
+ KJobWidgets::setWindow(job, qApp->activeWindow());
}
- kDebug() << "[TIME] Resolved pending roles:" << timer.elapsed();
-#endif
- applySortProgressToModel();
+ connect(job, &KIO::PreviewJob::gotPreview, this, &KFileItemModelRolesUpdater::slotHoverSequenceGotPreview);
+ connect(job, &KIO::PreviewJob::failed, this, &KFileItemModelRolesUpdater::slotHoverSequencePreviewFailed);
+ connect(job, &KIO::PreviewJob::finished, this, &KFileItemModelRolesUpdater::slotHoverSequencePreviewJobFinished);
+
+ m_hoverSequencePreviewJob = job;
}
-void KFileItemModelRolesUpdater::resetPendingRoles()
+void KFileItemModelRolesUpdater::killHoverSequencePreviewJob()
{
- m_pendingVisibleItems.clear();
- m_pendingInvisibleItems.clear();
-
- foreach (KJob* job, m_previewJobs) {
- job->kill();
+ if (m_hoverSequencePreviewJob) {
+ disconnect(m_hoverSequencePreviewJob, &KIO::PreviewJob::gotPreview, this, &KFileItemModelRolesUpdater::slotHoverSequenceGotPreview);
+ disconnect(m_hoverSequencePreviewJob, &KIO::PreviewJob::failed, this, &KFileItemModelRolesUpdater::slotHoverSequencePreviewFailed);
+ disconnect(m_hoverSequencePreviewJob, &KIO::PreviewJob::finished, this, &KFileItemModelRolesUpdater::slotHoverSequencePreviewJobFinished);
+ m_hoverSequencePreviewJob->kill();
+ m_hoverSequencePreviewJob = nullptr;
}
- Q_ASSERT(m_previewJobs.isEmpty());
}
-void KFileItemModelRolesUpdater::sortAndResolveAllRoles()
+void KFileItemModelRolesUpdater::updateChangedItems()
{
- if (m_paused) {
+ if (m_state == Paused) {
return;
}
- resetPendingRoles();
- Q_ASSERT(m_pendingVisibleItems.isEmpty());
- Q_ASSERT(m_pendingInvisibleItems.isEmpty());
-
- if (m_model->count() == 0) {
+ if (m_changedItems.isEmpty()) {
return;
}
- // Determine all visible items
- Q_ASSERT(m_firstVisibleIndex >= 0);
- for (int i = m_firstVisibleIndex; i <= m_lastVisibleIndex; ++i) {
- const KFileItem item = m_model->fileItem(i);
- if (!item.isNull()) {
- m_pendingVisibleItems.insert(item);
- }
- }
+ m_finishedItems -= m_changedItems;
- // Determine all invisible items
- for (int i = 0; i < m_firstVisibleIndex; ++i) {
- const KFileItem item = m_model->fileItem(i);
- if (!item.isNull()) {
- m_pendingInvisibleItems.insert(item);
- }
- }
- for (int i = m_lastVisibleIndex + 1; i < m_model->count(); ++i) {
- const KFileItem item = m_model->fileItem(i);
- if (!item.isNull()) {
- m_pendingInvisibleItems.insert(item);
- }
- }
+ if (m_resolvableRoles.contains(m_model->sortRole())) {
+ m_pendingSortRoleItems += m_changedItems;
- resolvePendingRoles();
-}
+ if (m_state != ResolvingSortRole) {
+ // Stop the preview job if necessary, and trigger the
+ // asynchronous determination of the sort role.
+ killPreviewJob();
+ m_state = ResolvingSortRole;
+ QTimer::singleShot(0, this, &KFileItemModelRolesUpdater::resolveNextSortRole);
+ }
-void KFileItemModelRolesUpdater::sortAndResolvePendingRoles()
-{
- Q_ASSERT(!m_paused);
- if (m_model->count() == 0) {
return;
}
- // If no valid index range is given assume that all items are visible.
- // A cleanup will be done later as soon as the index range has been set.
- const bool hasValidIndexRange = (m_lastVisibleIndex >= 0);
+ QList<int> visibleChangedIndexes;
+ QList<int> invisibleChangedIndexes;
+ visibleChangedIndexes.reserve(m_changedItems.size());
+ invisibleChangedIndexes.reserve(m_changedItems.size());
- // Trigger a preview generation of all pending items. Assure that the visible
- // pending items get generated first.
- QSet<KFileItem> pendingItems;
- pendingItems += m_pendingVisibleItems;
- pendingItems += m_pendingInvisibleItems;
-
- resetPendingRoles();
- Q_ASSERT(m_pendingVisibleItems.isEmpty());
- Q_ASSERT(m_pendingInvisibleItems.isEmpty());
+ auto changedItemsIt = m_changedItems.begin();
+ while (changedItemsIt != m_changedItems.end()) {
+ const auto &item = *changedItemsIt;
+ const int index = m_model->index(item);
- QSetIterator<KFileItem> it(pendingItems);
- while (it.hasNext()) {
- const KFileItem item = it.next();
- if (item.isNull()) {
+ if (index < 0) {
+ changedItemsIt = m_changedItems.erase(changedItemsIt);
continue;
}
+ ++changedItemsIt;
- const int index = m_model->index(item);
- if (!hasValidIndexRange || (index >= m_firstVisibleIndex && index <= m_lastVisibleIndex)) {
- m_pendingVisibleItems.insert(item);
+ if (index >= m_firstVisibleIndex && index <= m_lastVisibleIndex) {
+ visibleChangedIndexes.append(index);
} else {
- m_pendingInvisibleItems.insert(item);
+ invisibleChangedIndexes.append(index);
}
}
- resolvePendingRoles();
-}
+ std::sort(visibleChangedIndexes.begin(), visibleChangedIndexes.end());
-void KFileItemModelRolesUpdater::applySortProgressToModel()
-{
- if (m_sortingProgress < 0) {
- return;
- }
-
- // Inform the model about the progress of the resolved items,
- // so that it can give an indication when the sorting has been finished.
- const int resolvedCount = m_model->count()
- - m_pendingVisibleItems.count()
- - m_pendingInvisibleItems.count();
- if (resolvedCount > 0) {
- m_model->emitSortProgress(resolvedCount);
- if (resolvedCount == m_model->count()) {
- m_sortingProgress = -1;
+ if (m_previewShown) {
+ for (int index : std::as_const(visibleChangedIndexes)) {
+ m_pendingPreviewItems.append(m_model->fileItem(index));
}
- }
-}
-void KFileItemModelRolesUpdater::updateSortProgress()
-{
- const QByteArray sortRole = m_model->sortRole();
-
- // Optimization if the sorting is done by type: In case if all MIME-types
- // are known, the types have been resolved already by KFileItemModel and
- // no sort-progress feedback is required.
- const bool showProgress = (sortRole == "type")
- ? hasUnknownMimeTypes()
- : m_resolvableRoles.contains(sortRole);
+ for (int index : std::as_const(invisibleChangedIndexes)) {
+ m_pendingPreviewItems.append(m_model->fileItem(index));
+ }
- if (m_sortingProgress >= 0) {
- // Mark the current sorting as finished
- m_model->emitSortProgress(m_model->count());
+ if (!m_previewJob) {
+ startPreviewJob();
+ }
+ } else {
+ const bool resolvingInProgress = !m_pendingIndexes.isEmpty();
+ m_pendingIndexes = visibleChangedIndexes + m_pendingIndexes + invisibleChangedIndexes;
+ if (!resolvingInProgress) {
+ // Trigger the asynchronous resolving of the changed roles.
+ m_state = ResolvingAllRoles;
+ QTimer::singleShot(0, this, &KFileItemModelRolesUpdater::resolveNextPendingRoles);
+ }
}
- m_sortingProgress = showProgress ? 0 : -1;
}
-bool KFileItemModelRolesUpdater::hasUnknownMimeTypes() const
+void KFileItemModelRolesUpdater::applySortRole(int index)
{
- const int count = m_model->count();
- for (int i = 0; i < count; ++i) {
- const KFileItem item = m_model->fileItem(i);
+ QHash<QByteArray, QVariant> data;
+ const KFileItem item = m_model->fileItem(index);
+
+ if (m_model->sortRole() == "type") {
if (!item.isMimeTypeKnown()) {
- return true;
+ item.determineMimeType();
}
+
+ data.insert("type", item.mimeComment());
+ } else if (m_model->sortRole() == "size" && item.isLocalFile() && item.isDir()) {
+ startDirectorySizeCounting(item, index);
+ return;
+ } else {
+ // Probably the sort role is a baloo role - just determine all roles.
+ data = rolesData(item, index);
}
- return false;
+ disconnect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
+ m_model->setData(index, data);
+ connect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
}
-bool KFileItemModelRolesUpdater::applyResolvedRoles(const KFileItem& item, ResolveHint hint)
+void KFileItemModelRolesUpdater::applySortProgressToModel()
{
- if (item.isNull()) {
- return false;
- }
+ // Inform the model about the progress of the resolved items,
+ // so that it can give an indication when the sorting has been finished.
+ const int resolvedCount = m_model->count() - m_pendingSortRoleItems.count();
+ m_model->emitSortProgress(resolvedCount);
+}
+bool KFileItemModelRolesUpdater::applyResolvedRoles(int index, ResolveHint hint)
+{
+ const KFileItem item = m_model->fileItem(index);
const bool resolveAll = (hint == ResolveAll);
- bool mimeTypeChanged = false;
- if (!item.isMimeTypeKnown()) {
+ bool iconChanged = false;
+ if (!item.isMimeTypeKnown() || !item.isFinalIconKnown()) {
item.determineMimeType();
- mimeTypeChanged = true;
+ iconChanged = true;
+ } else if (!m_model->data(index).contains("iconName")) {
+ iconChanged = true;
}
- if (mimeTypeChanged || resolveAll || m_clearPreviews) {
- const int index = m_model->index(item);
+ if (iconChanged || resolveAll || m_clearPreviews) {
if (index < 0) {
return false;
}
QHash<QByteArray, QVariant> data;
if (resolveAll) {
- data = rolesData(item);
+ data = rolesData(item, index);
}
- data.insert("iconName", item.iconName());
+ if (!item.iconName().isEmpty()) {
+ data.insert("iconName", item.iconName());
+ }
if (m_clearPreviews) {
data.insert("iconPixmap", QPixmap());
+ data.insert("hoverSequencePixmaps", QVariant::fromValue(QVector<QPixmap>()));
}
- disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
- this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ disconnect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
m_model->setData(index, data);
- connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
- this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ connect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
return true;
}
return false;
}
-QHash<QByteArray, QVariant> KFileItemModelRolesUpdater::rolesData(const KFileItem& item) const
+void KFileItemModelRolesUpdater::startDirectorySizeCounting(const KFileItem &item, int index)
+{
+ if (ContentDisplaySettings::directorySizeMode() == ContentDisplaySettings::EnumDirectorySizeMode::None || !item.isLocalFile()) {
+ return;
+ }
+
+ if (ContentDisplaySettings::directorySizeMode() == ContentDisplaySettings::EnumDirectorySizeMode::ContentCount || item.isSlow()) {
+ // fastpath no recursion necessary
+
+ auto data = m_model->data(index);
+ if (data.value("size") == -2) {
+ // means job already started
+ return;
+ }
+
+ auto url = item.url();
+ if (!item.localPath().isEmpty()) {
+ // optimization for desktop:/, trash:/
+ url = QUrl::fromLocalFile(item.localPath());
+ }
+
+ data.insert("size", -2); // invalid size, -1 means size unknown
+
+ disconnect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
+ m_model->setData(index, data);
+ connect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
+
+ auto listJob = KIO::listDir(url, KIO::HideProgressInfo);
+ QObject::connect(listJob, &KIO::ListJob::entries, this, [this, item](const KJob * /*job*/, const KIO::UDSEntryList &list) {
+ int index = m_model->index(item);
+ if (index < 0) {
+ return;
+ }
+ auto data = m_model->data(index);
+ int origCount = data.value("count").toInt();
+ int entryCount = origCount;
+
+ for (const KIO::UDSEntry &entry : list) {
+ const auto name = entry.stringValue(KIO::UDSEntry::UDS_NAME);
+
+ if (name == QStringLiteral("..") || name == QStringLiteral(".")) {
+ continue;
+ }
+ if (!m_model->showHiddenFiles() && name.startsWith(QLatin1Char('.'))) {
+ continue;
+ }
+ if (m_model->showDirectoriesOnly() && !entry.isDir()) {
+ continue;
+ }
+ ++entryCount;
+ }
+
+ QHash<QByteArray, QVariant> newData;
+ QVariant expandable = data.value("isExpandable");
+ if (expandable.isNull() || expandable.toBool() != (entryCount > 0)) {
+ // if expandable has changed
+ newData.insert("isExpandable", entryCount > 0);
+ }
+
+ if (origCount != entryCount) {
+ // count has changed
+ newData.insert("count", entryCount);
+ }
+
+ if (!newData.isEmpty()) {
+ disconnect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
+ m_model->setData(index, newData);
+ connect(m_model, &KFileItemModel::itemsChanged, this, &KFileItemModelRolesUpdater::slotItemsChanged);
+ }
+ });
+ return;
+ }
+
+ // Tell m_directoryContentsCounter that we want to count the items
+ // inside the directory. The result will be received in slotDirectoryContentsCountReceived.
+ const QString path = item.localPath();
+ const auto priority = index >= m_firstVisibleIndex && index <= m_lastVisibleIndex ? KDirectoryContentsCounter::PathCountPriority::High
+ : KDirectoryContentsCounter::PathCountPriority::Normal;
+
+ m_directoryContentsCounter->scanDirectory(path, priority);
+}
+
+QHash<QByteArray, QVariant> KFileItemModelRolesUpdater::rolesData(const KFileItem &item, int index)
{
QHash<QByteArray, QVariant> data;
const bool getIsExpandableRole = m_roles.contains("isExpandable");
if ((getSizeRole || getIsExpandableRole) && item.isDir()) {
- if (item.isLocalFile()) {
- const QString path = item.localPath();
- const int count = subItemsCount(path);
- if (getSizeRole) {
- data.insert("size", count);
- }
- if (getIsExpandableRole) {
- data.insert("isExpandable", count > 0);
- }
- } else if (getSizeRole) {
- data.insert("size", -1); // -1 indicates an unknown number of items
- }
+ startDirectorySizeCounting(item, index);
+ }
+
+ if (m_roles.contains("extension")) {
+ // TODO KF6 use KFileItem::suffix 464722
+ data.insert("extension", QFileInfo(item.name()).suffix());
}
if (m_roles.contains("type")) {
data.insert("type", item.mimeComment());
}
- data.insert("iconOverlays", item.overlays());
-
-#ifdef HAVE_NEPOMUK
- if (m_nepomukResourceWatcher) {
- const KNepomukRolesProvider& rolesProvider = KNepomukRolesProvider::instance();
- Nepomuk::Resource resource(item.nepomukUri());
- QHashIterator<QByteArray, QVariant> it(rolesProvider.roleValues(resource, m_roles));
- while (it.hasNext()) {
- it.next();
- data.insert(it.key(), it.value());
- }
+ QStringList overlays = item.overlays();
+ for (KOverlayIconPlugin *it : std::as_const(m_overlayIconsPlugin)) {
+ overlays.append(it->getOverlays(item.url()));
+ }
+ if (!overlays.isEmpty()) {
+ data.insert("iconOverlays", overlays);
+ }
- QUrl uri = resource.resourceUri();
- if (uri.isEmpty()) {
- // TODO: Is there another way to explicitly create a resource?
- // We need a resource to be able to track it for changes.
- resource.setRating(0);
- uri = resource.resourceUri();
- }
- if (!uri.isEmpty() && !m_nepomukUriItems.contains(uri)) {
- // TODO: Calling stop()/start() is a workaround until
- // ResourceWatcher has been fixed.
- m_nepomukResourceWatcher->stop();
- m_nepomukResourceWatcher->addResource(resource);
- m_nepomukResourceWatcher->start();
-
- m_nepomukUriItems.insert(uri, item.url());
- }
+#if HAVE_BALOO
+ if (m_balooFileMonitor) {
+ m_balooFileMonitor->addFile(item.localPath());
+ applyChangedBalooRolesForItem(item);
}
#endif
-
return data;
}
-KFileItemList KFileItemModelRolesUpdater::sortedItems(const QSet<KFileItem>& items) const
+void KFileItemModelRolesUpdater::slotOverlaysChanged(const QUrl &url, const QStringList &)
{
- KFileItemList itemList;
- if (items.isEmpty()) {
- return itemList;
+ const KFileItem item = m_model->fileItem(url);
+ if (item.isNull()) {
+ return;
+ }
+ const int index = m_model->index(item);
+ QHash<QByteArray, QVariant> data = m_model->data(index);
+ QStringList overlays = item.overlays();
+ for (KOverlayIconPlugin *it : std::as_const(m_overlayIconsPlugin)) {
+ overlays.append(it->getOverlays(url));
}
+ data.insert("iconOverlays", overlays);
+ m_model->setData(index, data);
+}
-#ifdef KFILEITEMMODELROLESUPDATER_DEBUG
- QElapsedTimer timer;
- timer.start();
-#endif
+void KFileItemModelRolesUpdater::updateAllPreviews()
+{
+ if (m_state == Paused) {
+ m_previewChangedDuringPausing = true;
+ } else {
+ m_finishedItems.clear();
+ startUpdating();
+ }
+}
- QList<int> indexes;
- indexes.reserve(items.count());
+void KFileItemModelRolesUpdater::killPreviewJob()
+{
+ if (m_previewJob) {
+ disconnect(m_previewJob, &KIO::PreviewJob::gotPreview, this, &KFileItemModelRolesUpdater::slotGotPreview);
+ disconnect(m_previewJob, &KIO::PreviewJob::failed, this, &KFileItemModelRolesUpdater::slotPreviewFailed);
+ disconnect(m_previewJob, &KIO::PreviewJob::finished, this, &KFileItemModelRolesUpdater::slotPreviewJobFinished);
+ m_previewJob->kill();
+ m_previewJob = nullptr;
+ m_pendingPreviewItems.clear();
+ }
+}
- QSetIterator<KFileItem> it(items);
- while (it.hasNext()) {
- const KFileItem item = it.next();
- const int index = m_model->index(item);
- if (index >= 0) {
- indexes.append(index);
+QList<int> KFileItemModelRolesUpdater::indexesToResolve() const
+{
+ const int count = m_model->count();
+
+ QList<int> result;
+ result.reserve(qMin(count, (m_lastVisibleIndex - m_firstVisibleIndex + 1) + ResolveAllItemsLimit + (2 * m_maximumVisibleItems)));
+
+ // Add visible items.
+ // Resolve files first, their previews are quicker.
+ QList<int> visibleDirs;
+ for (int i = m_firstVisibleIndex; i <= m_lastVisibleIndex; ++i) {
+ const KFileItem item = m_model->fileItem(i);
+ if (item.isDir()) {
+ visibleDirs.append(i);
+ } else {
+ result.append(i);
}
}
- qSort(indexes);
- itemList.reserve(items.count());
- foreach (int index, indexes) {
- itemList.append(m_model->fileItem(index));
- }
+ result.append(visibleDirs);
-#ifdef KFILEITEMMODELROLESUPDATER_DEBUG
- kDebug() << "[TIME] Sorting of items:" << timer.elapsed();
-#endif
- return itemList;
-}
+ // We need a reasonable upper limit for number of items to resolve after
+ // and before the visible range. m_maximumVisibleItems can be quite large
+ // when using Compact View.
+ const int readAheadItems = qMin(ReadAheadPages * m_maximumVisibleItems, ResolveAllItemsLimit / 2);
-int KFileItemModelRolesUpdater::subItemsCount(const QString& path) const
-{
- const bool countHiddenFiles = m_model->showHiddenFiles();
- const bool showFoldersOnly = m_model->showDirectoriesOnly();
+ // Add items after the visible range.
+ const int endExtendedVisibleRange = qMin(m_lastVisibleIndex + readAheadItems, count - 1);
+ for (int i = m_lastVisibleIndex + 1; i <= endExtendedVisibleRange; ++i) {
+ result.append(i);
+ }
-#ifdef Q_WS_WIN
- QDir dir(path);
- QDir::Filters filters = QDir::NoDotAndDotDot | QDir::System;
- if (countHiddenFiles) {
- filters |= QDir::Hidden;
+ // Add items before the visible range in reverse order.
+ const int beginExtendedVisibleRange = qMax(0, m_firstVisibleIndex - readAheadItems);
+ for (int i = m_firstVisibleIndex - 1; i >= beginExtendedVisibleRange; --i) {
+ result.append(i);
}
- if (showFoldersOnly) {
- filters |= QDir::Dirs;
- } else {
- filters |= QDir::AllEntries;
+
+ // Add items on the last page.
+ const int beginLastPage = qMax(endExtendedVisibleRange + 1, count - m_maximumVisibleItems);
+ for (int i = beginLastPage; i < count; ++i) {
+ result.append(i);
}
- return dir.entryList(filters).count();
-#else
- // Taken from kdelibs/kio/kio/kdirmodel.cpp
- // Copyright (C) 2006 David Faure <faure@kde.org>
- int count = -1;
- DIR* dir = ::opendir(QFile::encodeName(path));
- if (dir) {
- count = 0;
- struct dirent *dirEntry = 0;
- while ((dirEntry = ::readdir(dir))) { // krazy:exclude=syscalls
- if (dirEntry->d_name[0] == '.') {
- if (dirEntry->d_name[1] == '\0' || !countHiddenFiles) {
- // Skip "." or hidden files
- continue;
- }
- if (dirEntry->d_name[1] == '.' && dirEntry->d_name[2] == '\0') {
- // Skip ".."
- continue;
- }
- }
+ // Add items on the first page.
+ const int endFirstPage = qMin(beginExtendedVisibleRange, m_maximumVisibleItems);
+ for (int i = 0; i < endFirstPage; ++i) {
+ result.append(i);
+ }
- // If only directories are counted, consider an unknown file type also
- // as directory instead of trying to do an expensive stat() (see bug 292642).
- if (!showFoldersOnly || dirEntry->d_type == DT_DIR || dirEntry->d_type == DT_UNKNOWN) {
- ++count;
- }
- }
- ::closedir(dir);
+ // Continue adding items until ResolveAllItemsLimit is reached.
+ int remainingItems = ResolveAllItemsLimit - result.count();
+
+ for (int i = endExtendedVisibleRange + 1; i < beginLastPage && remainingItems > 0; ++i) {
+ result.append(i);
+ --remainingItems;
}
- return count;
-#endif
+
+ for (int i = beginExtendedVisibleRange - 1; i >= endFirstPage && remainingItems > 0; --i) {
+ result.append(i);
+ --remainingItems;
+ }
+
+ return result;
}
-void KFileItemModelRolesUpdater::updateAllPreviews()
+void KFileItemModelRolesUpdater::trimHoverSequenceLoadedItems()
{
- if (m_paused) {
- m_previewChangedDuringPausing = true;
- } else {
- sortAndResolveAllRoles();
+ static const size_t maxLoadedItems = 20;
+
+ size_t loadedItems = m_hoverSequenceLoadedItems.size();
+ while (loadedItems > maxLoadedItems) {
+ const KFileItem item = m_hoverSequenceLoadedItems.front();
+
+ m_hoverSequenceLoadedItems.pop_front();
+ loadedItems--;
+
+ const int index = m_model->index(item);
+ if (index >= 0) {
+ QHash<QByteArray, QVariant> data = m_model->data(index);
+ data["hoverSequencePixmaps"] = QVariant::fromValue(QVector<QPixmap>() << QPixmap());
+ m_model->setData(index, data);
+ }
}
}
-#include "kfileitemmodelrolesupdater.moc"
+#include "moc_kfileitemmodelrolesupdater.cpp"
projects / dolphin.git / blobdiff