#include "kfileitemmodelrolesupdater.h"
#include "kfileitemmodel.h"
-#include "kpixmapmodifier_p.h"
#include <KConfig>
#include <KConfigGroup>
#include <KDebug>
#include <KFileItem>
#include <KGlobal>
+#include <KIconLoader>
+#include <KJobWidgets>
+#include <KIO/JobUiDelegate>
#include <KIO/PreviewJob>
+
+#include "private/kpixmapmodifier.h"
+#include "private/kdirectorycontentscounter.h"
+
+#include <QApplication>
#include <QPainter>
#include <QPixmap>
#include <QElapsedTimer>
#include <QTimer>
-// Required includes for subItemsCount():
-#ifdef Q_WS_WIN
- #include <QDir>
-#else
- #include <dirent.h>
- #include <QFile>
+#include <algorithm>
+
+#ifdef HAVE_BALOO
+ #include "private/kbaloorolesprovider.h"
+ #include <baloo/file.h>
+ #include <baloo/filefetchjob.h>
+ #include <baloo/filemonitor.h>
#endif
// #define KFILEITEMMODELROLESUPDATER_DEBUG
// 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;
+
+ // 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_paused(false),
+ 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_firstVisibleIndex(0),
m_lastVisibleIndex(-1),
+ m_maximumVisibleItems(50),
m_roles(),
+ m_resolvableRoles(),
m_enabledPlugins(),
- m_pendingVisibleItems(),
- m_pendingInvisibleItems(),
- m_previewJobs(),
- m_resolvePendingRolesTimer(0),
- m_changedItemsTimer(0),
- m_changedItems()
+ m_pendingSortRoleItems(),
+ m_pendingIndexes(),
+ m_pendingPreviewItems(),
+ m_previewJob(),
+ m_recentlyChangedItemsTimer(0),
+ m_recentlyChangedItems(),
+ m_changedItems(),
+ m_directoryContentsCounter(0)
+ #ifdef HAVE_BALOO
+ , m_balooFileMonitor(0)
+ #endif
{
Q_ASSERT(model);
this, SLOT(slotItemsRemoved(KItemRangeList)));
connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
-
- // A timer with a minimal timeout is used to merge several triggerPendingRolesResolving() calls
- // to only one call of resolvePendingRoles().
- m_resolvePendingRolesTimer = new QTimer(this);
- m_resolvePendingRolesTimer->setInterval(1);
- m_resolvePendingRolesTimer->setSingleShot(true);
- connect(m_resolvePendingRolesTimer, SIGNAL(timeout()), this, SLOT(resolvePendingRoles()));
+ connect(m_model, SIGNAL(itemsMoved(KItemRange,QList<int>)),
+ this, SLOT(slotItemsMoved(KItemRange,QList<int>)));
+ connect(m_model, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
+ this, SLOT(slotSortRoleChanged(QByteArray,QByteArray)));
// 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 2 seconds.
- m_changedItemsTimer = new QTimer(this);
- m_changedItemsTimer->setInterval(2000);
- 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 1 second.
+ m_recentlyChangedItemsTimer = new QTimer(this);
+ m_recentlyChangedItemsTimer->setInterval(1000);
+ m_recentlyChangedItemsTimer->setSingleShot(true);
+ connect(m_recentlyChangedItemsTimer, SIGNAL(timeout()), this, SLOT(resolveRecentlyChangedItems()));
+
+ m_resolvableRoles.insert("size");
+ m_resolvableRoles.insert("type");
+ m_resolvableRoles.insert("isExpandable");
+#ifdef HAVE_BALOO
+ m_resolvableRoles += KBalooRolesProvider::instance().roles();
+#endif
+
+ m_directoryContentsCounter = new KDirectoryContentsCounter(m_model, this);
+ connect(m_directoryContentsCounter, SIGNAL(result(QString,int)),
+ this, SLOT(slotDirectoryContentsCountReceived(QString,int)));
}
KFileItemModelRolesUpdater::~KFileItemModelRolesUpdater()
{
+ killPreviewJob();
}
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();
}
}
}
m_firstVisibleIndex = index;
m_lastVisibleIndex = qMin(index + count - 1, m_model->count() - 1);
- if (hasPendingRoles() && !m_paused) {
- sortAndResolvePendingRoles();
- }
+ startUpdating();
}
-void KFileItemModelRolesUpdater::setPreviewShown(bool show)
+void KFileItemModelRolesUpdater::setMaximumVisibleItems(int count)
+{
+ m_maximumVisibleItems = count;
+}
+
+void KFileItemModelRolesUpdater::setPreviewsShown(bool show)
{
if (show == m_previewShown) {
return;
m_clearPreviews = true;
}
- if (m_paused) {
- m_previewChangedDuringPausing = true;
- } else {
- sortAndResolveAllRoles();
- }
+ updateAllPreviews();
}
-bool KFileItemModelRolesUpdater::isPreviewShown() const
+bool KFileItemModelRolesUpdater::previewsShown() const
{
return m_previewShown;
}
-void KFileItemModelRolesUpdater::setEnabledPlugins(const QStringList& list)
+void KFileItemModelRolesUpdater::setEnlargeSmallPreviews(bool enlarge)
{
- if (m_enabledPlugins == list) {
- return;
+ if (enlarge != m_enlargeSmallPreviews) {
+ m_enlargeSmallPreviews = enlarge;
+ if (m_previewShown) {
+ updateAllPreviews();
+ }
}
+}
- m_enabledPlugins = list;
- if (m_previewShown) {
- if (m_paused) {
- m_previewChangedDuringPausing = true;
- } else {
- sortAndResolveAllRoles();
+bool KFileItemModelRolesUpdater::enlargeSmallPreviews() const
+{
+ return m_enlargeSmallPreviews;
+}
+
+void KFileItemModelRolesUpdater::setEnabledPlugins(const QStringList& 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)
{
- if (roles.count() == m_roles.count()) {
- bool isEqual = true;
- foreach (const QByteArray& role, roles) {
- if (!m_roles.contains(role)) {
- isEqual = false;
+ if (m_roles != roles) {
+ m_roles = roles;
+
+#ifdef HAVE_BALOO
+ // Check whether there is at least one role that must be resolved
+ // 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 KBalooRolesProvider& rolesProvider = KBalooRolesProvider::instance();
+ bool hasBalooRole = false;
+ QSetIterator<QByteArray> it(roles);
+ while (it.hasNext()) {
+ const QByteArray& role = it.next();
+ if (rolesProvider.roles().contains(role)) {
+ hasBalooRole = true;
break;
}
}
- if (isEqual) {
- return;
- }
- }
- m_roles = roles;
+ if (hasBalooRole && !m_balooFileMonitor) {
+ m_balooFileMonitor = new Baloo::FileMonitor(this);
+ connect(m_balooFileMonitor, SIGNAL(fileMetaDataChanged(QString)),
+ this, SLOT(applyChangedBalooRoles(QString)));
+ } else if (!hasBalooRole && m_balooFileMonitor) {
+ delete m_balooFileMonitor;
+ m_balooFileMonitor = 0;
+ }
+#endif
- if (m_paused) {
- m_rolesChangedDuringPausing = true;
- } else {
- sortAndResolveAllRoles();
+ if (m_state == Paused) {
+ m_rolesChangedDuringPausing = true;
+ } else {
+ startUpdating();
+ }
}
}
bool KFileItemModelRolesUpdater::isPaused() const
{
- return m_paused;
+ return m_state == Paused;
}
QStringList KFileItemModelRolesUpdater::enabledPlugins() const
void KFileItemModelRolesUpdater::slotItemsInserted(const KItemRangeList& itemRanges)
{
- startUpdating(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;
+ foreach (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::slotItemsRemoved(const KItemRangeList& itemRanges)
{
Q_UNUSED(itemRanges);
- m_firstVisibleIndex = 0;
- m_lastVisibleIndex = -1;
- if (!hasPendingRoles()) {
- return;
+
+ const bool allItemsRemoved = (m_model->count() == 0);
+
+#ifdef HAVE_BALOO
+ if (m_balooFileMonitor) {
+ // Don't let the FileWatcher watch for removed items
+ if (allItemsRemoved) {
+ m_balooFileMonitor->clear();
+ } else {
+ QStringList newFileList;
+ foreach (const QString& itemUrl, m_balooFileMonitor->files()) {
+ if (m_model->index(itemUrl) >= 0) {
+ newFileList.append(itemUrl);
+ }
+ }
+ m_balooFileMonitor->setFiles(newFileList);
+ }
}
+#endif
- if (m_model->count() == 0) {
- // Most probably a directory change is done. Clear all pending items
- // and also kill all ongoing preview-jobs.
- resetPendingRoles();
+ 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_changedItemsTimer->stop();
+
+ killPreviewJob();
} 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);
- }
+ // 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;
}
}
+
+ // The visible items might have changed.
+ startUpdating();
}
}
+void KFileItemModelRolesUpdater::slotItemsMoved(const KItemRange& itemRange, QList<int> movedToIndexes)
+{
+ Q_UNUSED(itemRange);
+ Q_UNUSED(movedToIndexes);
+
+ // The visible items might have changed.
+ startUpdating();
+}
+
void KFileItemModelRolesUpdater::slotItemsChanged(const KItemRangeList& itemRanges,
const QSet<QByteArray>& roles)
{
Q_UNUSED(roles);
- 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) {
- int index = itemRange.index;
- for (int count = itemRange.count; count > 0; --count) {
- m_changedItems.insert(m_model->fileItem(index));
- ++index;
+ // 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;
+
+ foreach (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;
+ }
+ }
+
+ m_recentlyChangedItemsTimer->start();
+
+ if (!itemsChangedRecently) {
+ updateChangedItems();
+ }
+}
+
+void KFileItemModelRolesUpdater::slotSortRoleChanged(const QByteArray& current,
+ const QByteArray& previous)
+{
+ Q_UNUSED(current);
+ Q_UNUSED(previous);
+
+ if (m_resolvableRoles.contains(current)) {
+ m_pendingSortRoleItems.clear();
+ m_finishedItems.clear();
+
+ 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 {
+ 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 {
- // No call of slotItemsChanged() has been done recently, resolve the roles now.
- startUpdating(itemRanges);
+ m_state = Idle;
+ m_pendingSortRoleItems.clear();
+ applySortProgressToModel();
}
- m_changedItemsTimer->start();
}
void KFileItemModelRolesUpdater::slotGotPreview(const KFileItem& item, const QPixmap& pixmap)
{
- m_pendingVisibleItems.remove(item);
- m_pendingInvisibleItems.remove(item);
+ if (m_state != PreviewJobRunning) {
+ return;
+ }
+
+ m_changedItems.remove(item);
const int index = m_model->index(item);
if (index < 0) {
const int slashIndex = mimeType.indexOf(QLatin1Char('/'));
const QString mimeTypeGroup = mimeType.left(slashIndex);
if (mimeTypeGroup == QLatin1String("image")) {
- KPixmapModifier::applyFrame(scaledPixmap, m_iconSize);
+ 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);
+
+ QPixmap largeFrame(frameSize);
+ largeFrame.fill(Qt::transparent);
+
+ KPixmapModifier::applyFrame(largeFrame, frameSize);
+
+ QPainter painter(&largeFrame);
+ painter.drawPixmap((largeFrame.width() - scaledPixmap.width()) / 2,
+ (largeFrame.height() - scaledPixmap.height()) / 2,
+ scaledPixmap);
+ scaledPixmap = largeFrame;
+ } else {
+ // The image must be shrinked as it is too large to fit into
+ // the available icon size
+ KPixmapModifier::applyFrame(scaledPixmap, m_iconSize);
+ }
+ }
} else {
KPixmapModifier::scale(scaledPixmap, m_iconSize);
}
QHash<QByteArray, QVariant> data = rolesData(item);
+
+ 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.
+ // It is more efficient to do it here, as KIconLoader::drawOverlays()
+ // assumes that an overlay will be drawn and has some additional
+ // setup time.
+ foreach (const QString& overlay, overlays) {
+ if (!overlay.isEmpty()) {
+ // There is at least one overlay, draw all overlays above m_pixmap
+ // and cancel the check
+ KIconLoader::global()->drawOverlays(overlays, scaledPixmap, KIconLoader::Desktop);
+ break;
+ }
+ }
+
data.insert("iconPixmap", scaledPixmap);
disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
m_model->setData(index, data);
connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+
+ m_finishedItems.insert(item);
}
void KFileItemModelRolesUpdater::slotPreviewFailed(const KFileItem& item)
{
- m_pendingVisibleItems.remove(item);
- m_pendingInvisibleItems.remove(item);
+ if (m_state != PreviewJobRunning) {
+ return;
+ }
- const bool clearPreviews = m_clearPreviews;
- m_clearPreviews = true;
- applyResolvedRoles(item, ResolveAll);
- m_clearPreviews = clearPreviews;
-}
+ m_changedItems.remove(item);
-void KFileItemModelRolesUpdater::slotPreviewJobFinished(KJob* job)
-{
-#ifdef KFILEITEMMODELROLESUPDATER_DEBUG
- kDebug() << "Preview job finished. Pending visible:" << m_pendingVisibleItems.count() << "invisible:" << m_pendingInvisibleItems.count();
-#endif
+ const int index = m_model->index(item);
+ if (index >= 0) {
+ QHash<QByteArray, QVariant> data;
+ data.insert("iconPixmap", QPixmap());
- m_previewJobs.removeOne(job);
- if (!m_previewJobs.isEmpty() || !hasPendingRoles()) {
- return;
- }
+ disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
+ this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ m_model->setData(index, data);
+ connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
+ this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
- const KFileItemList visibleItems = sortedItems(m_pendingVisibleItems);
- startPreviewJob(visibleItems + m_pendingInvisibleItems.toList());
+ applyResolvedRoles(index, ResolveAll);
+ m_finishedItems.insert(item);
+ }
}
-void KFileItemModelRolesUpdater::resolvePendingRoles()
+void KFileItemModelRolesUpdater::slotPreviewJobFinished()
{
- int resolvedCount = 0;
-
- const bool hasSlowRoles = m_previewShown
- || m_roles.contains("size")
- || m_roles.contains("type")
- || m_roles.contains("isExpandable");
- const ResolveHint resolveHint = hasSlowRoles ? ResolveFast : ResolveAll;
+ m_previewJob = 0;
- // 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();
+ if (m_state != PreviewJobRunning) {
+ return;
+ }
- // Resolve the MIME type of all visible items
- QSetIterator<KFileItem> visibleIt(m_pendingVisibleItems);
- while (visibleIt.hasNext()) {
- const KFileItem item = visibleIt.next();
- applyResolvedRoles(item, resolveHint);
- if (!hasSlowRoles) {
- Q_ASSERT(!m_pendingInvisibleItems.contains(item));
- // All roles have been resolved already by applyResolvedRoles()
- m_pendingVisibleItems.remove(item);
- }
- ++resolvedCount;
+ m_state = Idle;
- if (timer.elapsed() > MaxBlockTimeout) {
- break;
+ if (!m_pendingPreviewItems.isEmpty()) {
+ startPreviewJob();
+ } else {
+ if (!m_changedItems.isEmpty()) {
+ updateChangedItems();
}
}
+}
- // 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);
+void KFileItemModelRolesUpdater::resolveNextSortRole()
+{
+ if (m_state != ResolvingSortRole) {
+ return;
}
- int index = 0;
- while (resolvedCount < MaxResolveItemsCount && index < invisibleItems.count() && timer.elapsed() <= MaxBlockTimeout) {
- const KFileItem item = invisibleItems.at(index);
- applyResolvedRoles(item, resolveHint);
+ QSet<KFileItem>::iterator it = m_pendingSortRoleItems.begin();
+ while (it != m_pendingSortRoleItems.end()) {
+ const KFileItem item = *it;
+ const int index = m_model->index(item);
- if (!hasSlowRoles) {
- // All roles have been resolved already by applyResolvedRoles()
- m_pendingInvisibleItems.remove(item);
+ // 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;
}
- ++index;
- ++resolvedCount;
- }
- if (m_previewShown) {
- KFileItemList items = sortedItems(m_pendingVisibleItems);
- items += invisibleItems;
- startPreviewJob(items);
- } else {
- QTimer::singleShot(0, this, SLOT(resolveNextPendingRoles()));
+ applySortRole(index);
+ m_pendingSortRoleItems.erase(it);
+ break;
}
-#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();
+ if (!m_pendingSortRoleItems.isEmpty()) {
+ applySortProgressToModel();
+ QTimer::singleShot(0, this, SLOT(resolveNextSortRole()));
+ } else {
+ m_state = Idle;
+
+ // Prevent that we try to update the items twice.
+ disconnect(m_model, SIGNAL(itemsMoved(KItemRange,QList<int>)),
+ this, SLOT(slotItemsMoved(KItemRange,QList<int>)));
+ applySortProgressToModel();
+ connect(m_model, SIGNAL(itemsMoved(KItemRange,QList<int>)),
+ this, SLOT(slotItemsMoved(KItemRange,QList<int>)));
+ startUpdating();
}
- kDebug() << "[TIME] Resolved pending roles:" << timer.elapsed();
-#endif
}
void KFileItemModelRolesUpdater::resolveNextPendingRoles()
{
- if (m_paused) {
+ if (m_state != ResolvingAllRoles) {
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;
- }
+ while (!m_pendingIndexes.isEmpty()) {
+ const int index = m_pendingIndexes.takeFirst();
+ const KFileItem item = m_model->fileItem(index);
- 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;
+ if (m_finishedItems.contains(item)) {
+ continue;
}
+
+ applyResolvedRoles(index, ResolveAll);
+ m_finishedItems.insert(item);
+ m_changedItems.remove(item);
+ break;
}
- if (hasPendingRoles()) {
+ if (!m_pendingIndexes.isEmpty()) {
QTimer::singleShot(0, this, SLOT(resolveNextPendingRoles()));
} else {
- m_clearPreviews = false;
- }
+ m_state = Idle;
-#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();
+ 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());
+
+ disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
+ this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ for (int index = 0; index <= m_model->count(); ++index) {
+ if (m_model->data(index).contains("iconPixmap")) {
+ m_model->setData(index, data);
+ }
+ }
+ connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
+ this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+
+ }
+ m_clearPreviews = false;
+ }
+
+ if (!m_changedItems.isEmpty()) {
+ updateChangedItems();
+ }
}
-#endif
}
-void KFileItemModelRolesUpdater::resolveChangedItems()
+void KFileItemModelRolesUpdater::resolveRecentlyChangedItems()
{
- if (m_changedItems.isEmpty()) {
+ m_changedItems += m_recentlyChangedItems;
+ m_recentlyChangedItems.clear();
+ updateChangedItems();
+}
+
+void KFileItemModelRolesUpdater::applyChangedBalooRoles(const QString& itemUrl)
+{
+#ifdef HAVE_BALOO
+ const KFileItem item = m_model->fileItem(itemUrl);
+
+ if (item.isNull()) {
+ // itemUrl is not in the model anymore, probably because
+ // the corresponding file has been deleted in the meantime.
return;
}
- KItemRangeList itemRanges;
+ Baloo::FileFetchJob* job = new Baloo::FileFetchJob(item.localPath());
+ connect(job, SIGNAL(finished(KJob*)), this, SLOT(applyChangedBalooRolesJobFinished(KJob*)));
+ job->setProperty("item", QVariant::fromValue(item));
+ job->start();
+#else
+#ifndef Q_CC_MSVC
+ Q_UNUSED(itemUrl);
+#endif
+#endif
+}
+
+void KFileItemModelRolesUpdater::applyChangedBalooRolesJobFinished(KJob* kjob)
+{
+#ifdef HAVE_BALOO
+ const KFileItem item = kjob->property("item").value<KFileItem>();
+
+ const KBalooRolesProvider& rolesProvider = KBalooRolesProvider::instance();
+ QHash<QByteArray, QVariant> data;
+
+ foreach (const QByteArray& role, rolesProvider.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());
+ }
- QSetIterator<KFileItem> it(m_changedItems);
+ Baloo::FileFetchJob* job = static_cast<Baloo::FileFetchJob*>(kjob);
+ QHashIterator<QByteArray, QVariant> it(rolesProvider.roleValues(job->file(), m_roles));
while (it.hasNext()) {
- const KFileItem& item = it.next();
- const int index = m_model->index(item);
- if (index >= 0) {
- itemRanges.append(KItemRange(index, 1));
- }
+ it.next();
+ data.insert(it.key(), it.value());
}
- startUpdating(itemRanges);
+ disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
+ this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ 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>)));
+#endif
}
-void KFileItemModelRolesUpdater::startUpdating(const KItemRangeList& itemRanges)
+void KFileItemModelRolesUpdater::slotDirectoryContentsCountReceived(const QString& path, int count)
{
- // 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);
+ const bool getSizeRole = m_roles.contains("size");
+ const bool getIsExpandableRole = m_roles.contains("isExpandable");
- 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);
+ if (getSizeRole || getIsExpandableRole) {
+ const int index = m_model->index(KUrl(path));
+ if (index >= 0) {
+ QHash<QByteArray, QVariant> data;
+
+ if (getSizeRole) {
+ data.insert("size", count);
}
+ if (getIsExpandableRole) {
+ data.insert("isExpandable", count > 0);
+ }
+
+ disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
+ this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ m_model->setData(index, data);
+ connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
+ this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
}
}
+}
- int rangesCount = 0;
+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;
+ }
- foreach (const KItemRange& range, itemRanges) {
- rangesCount += range.count;
+ // Terminate all updates that are currently active.
+ killPreviewJob();
+ m_pendingIndexes.clear();
- // 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);
+ QElapsedTimer timer;
+ timer.start();
+
+ // Determine the icons for the visible items synchronously.
+ updateVisibleIcons();
+
+ // 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());
+
+ foreach (int index, 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, SLOT(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);
+ }
}
- triggerPendingRolesResolving(rangesCount);
+ 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);
+ }
+
+ // 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, SLOT(slotPreviewJobFinished()));
return;
}
// 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);
+ ? 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::filePreview() 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(itemSubSet.first().isLocalFile());
+ if (job->ui()) {
+ KJobWidgets::setWindow(job, qApp->activeWindow());
}
- KJob* job = KIO::filePreview(itemSubSet, cacheSize, &m_enabledPlugins);
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*)));
+ this, SLOT(slotPreviewJobFinished()));
- m_previewJobs.append(job);
+ m_previewJob = job;
}
-
-bool KFileItemModelRolesUpdater::hasPendingRoles() const
-{
- return !m_pendingVisibleItems.isEmpty() || !m_pendingInvisibleItems.isEmpty();
-}
-
-void KFileItemModelRolesUpdater::resetPendingRoles()
-{
- m_pendingVisibleItems.clear();
- m_pendingInvisibleItems.clear();
-
- foreach (KJob* job, m_previewJobs) {
- job->kill();
- }
- Q_ASSERT(m_previewJobs.isEmpty());
-}
-
-void KFileItemModelRolesUpdater::triggerPendingRolesResolving(int count)
+void KFileItemModelRolesUpdater::updateChangedItems()
{
- if (count == m_model->count()) {
- // When initially loading a directory a synchronous resolving prevents a minor
- // flickering when opening directories. This is also fine from a performance point
- // of view as it is assured in resolvePendingRoles() to never block the event-loop
- // for more than 200 ms.
- resolvePendingRoles();
- } else {
- // Items have been added. This can be done in several small steps within one loop
- // because of the sorting and hence may not trigger any expensive operation.
- m_resolvePendingRolesTimer->start();
+ if (m_state == Paused) {
+ return;
}
-}
-void KFileItemModelRolesUpdater::sortAndResolveAllRoles()
-{
- if (m_paused) {
+ if (m_changedItems.isEmpty()) {
return;
}
- resetPendingRoles();
- Q_ASSERT(m_pendingVisibleItems.isEmpty());
- Q_ASSERT(m_pendingInvisibleItems.isEmpty());
+ m_finishedItems -= m_changedItems;
- if (m_model->count() == 0) {
- return;
- }
+ if (m_resolvableRoles.contains(m_model->sortRole())) {
+ m_pendingSortRoleItems += m_changedItems;
- // 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);
+ 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, SLOT(resolveNextSortRole()));
}
+
+ return;
}
- // 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);
+ QList<int> visibleChangedIndexes;
+ QList<int> invisibleChangedIndexes;
+
+ foreach (const KFileItem& item, m_changedItems) {
+ const int index = m_model->index(item);
+
+ if (index < 0) {
+ m_changedItems.remove(item);
+ continue;
}
- }
- 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 (index >= m_firstVisibleIndex && index <= m_lastVisibleIndex) {
+ visibleChangedIndexes.append(index);
+ } else {
+ invisibleChangedIndexes.append(index);
}
}
- triggerPendingRolesResolving(m_pendingVisibleItems.count() +
- m_pendingInvisibleItems.count());
-}
+ std::sort(visibleChangedIndexes.begin(), visibleChangedIndexes.end());
-void KFileItemModelRolesUpdater::sortAndResolvePendingRoles()
-{
- Q_ASSERT(!m_paused);
- if (m_model->count() == 0) {
- return;
- }
+ if (m_previewShown) {
+ foreach (int index, visibleChangedIndexes) {
+ m_pendingPreviewItems.append(m_model->fileItem(index));
+ }
- // 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);
+ foreach (int index, invisibleChangedIndexes) {
+ m_pendingPreviewItems.append(m_model->fileItem(index));
+ }
- // 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;
+ 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, SLOT(resolveNextPendingRoles()));
+ }
+ }
+}
- resetPendingRoles();
- Q_ASSERT(m_pendingVisibleItems.isEmpty());
- Q_ASSERT(m_pendingInvisibleItems.isEmpty());
+void KFileItemModelRolesUpdater::applySortRole(int index)
+{
+ QHash<QByteArray, QVariant> data;
+ const KFileItem item = m_model->fileItem(index);
- QSetIterator<KFileItem> it(pendingItems);
- while (it.hasNext()) {
- const KFileItem item = it.next();
- if (item.isNull()) {
- continue;
+ if (m_model->sortRole() == "type") {
+ if (!item.isMimeTypeKnown()) {
+ item.determineMimeType();
}
- const int index = m_model->index(item);
- if (!hasValidIndexRange || (index >= m_firstVisibleIndex && index <= m_lastVisibleIndex)) {
- m_pendingVisibleItems.insert(item);
- } else {
- m_pendingInvisibleItems.insert(item);
- }
+ data.insert("type", item.mimeComment());
+ } else if (m_model->sortRole() == "size" && item.isLocalFile() && item.isDir()) {
+ const QString path = item.localPath();
+ data.insert("size", m_directoryContentsCounter->countDirectoryContentsSynchronously(path));
+ } else {
+ // Probably the sort role is a baloo role - just determine all roles.
+ data = rolesData(item);
}
- triggerPendingRolesResolving(m_pendingVisibleItems.count() +
- m_pendingInvisibleItems.count());
+ disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
+ this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
+ m_model->setData(index, data);
+ connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
+ this, SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
}
-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;
}
data.insert("iconName", item.iconName());
if (m_clearPreviews) {
- data.insert("iconPixmap", QString());
+ data.insert("iconPixmap", QPixmap());
}
disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
return false;
}
-QHash<QByteArray, QVariant> KFileItemModelRolesUpdater::rolesData(const KFileItem& item) const
+QHash<QByteArray, QVariant> KFileItemModelRolesUpdater::rolesData(const KFileItem& item)
{
QHash<QByteArray, QVariant> data;
const bool getSizeRole = m_roles.contains("size");
const bool getIsExpandableRole = m_roles.contains("isExpandable");
- if ((getSizeRole || getIsExpandableRole) && item.isDir() && item.isLocalFile()) {
- const QString path = item.localPath();
- const int count = subItemsCount(path);
- if (count >= 0) {
- if (getSizeRole) {
- data.insert("size", KIO::filesize_t(count));
- }
- if (getIsExpandableRole) {
- data.insert("isExpandable", count > 0);
- }
+ if ((getSizeRole || getIsExpandableRole) && item.isDir()) {
+ if (item.isLocalFile()) {
+ // 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();
+ m_directoryContentsCounter->addDirectory(path);
+ } else if (getSizeRole) {
+ data.insert("size", -1); // -1 indicates an unknown number of items
}
}
data.insert("iconOverlays", item.overlays());
+#ifdef HAVE_BALOO
+ if (m_balooFileMonitor) {
+ m_balooFileMonitor->addFile(item.localPath());
+ applyChangedBalooRoles(item.localPath());
+ }
+#endif
return data;
}
-KFileItemList KFileItemModelRolesUpdater::sortedItems(const QSet<KFileItem>& items) const
+void KFileItemModelRolesUpdater::updateAllPreviews()
{
- KFileItemList itemList;
- if (items.isEmpty()) {
- return itemList;
+ if (m_state == Paused) {
+ m_previewChangedDuringPausing = true;
+ } else {
+ m_finishedItems.clear();
+ startUpdating();
}
+}
-#ifdef KFILEITEMMODELROLESUPDATER_DEBUG
- QElapsedTimer timer;
- timer.start();
-#endif
+void KFileItemModelRolesUpdater::killPreviewJob()
+{
+ if (m_previewJob) {
+ disconnect(m_previewJob, SIGNAL(gotPreview(KFileItem,QPixmap)),
+ this, SLOT(slotGotPreview(KFileItem,QPixmap)));
+ disconnect(m_previewJob, SIGNAL(failed(KFileItem)),
+ this, SLOT(slotPreviewFailed(KFileItem)));
+ disconnect(m_previewJob, SIGNAL(finished(KJob*)),
+ this, SLOT(slotPreviewJobFinished()));
+ m_previewJob->kill();
+ m_previewJob = 0;
+ m_pendingPreviewItems.clear();
+ }
+}
- QList<int> indexes;
- indexes.reserve(items.count());
+QList<int> KFileItemModelRolesUpdater::indexesToResolve() const
+{
+ const int count = m_model->count();
- 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);
- }
- }
- qSort(indexes);
+ QList<int> result;
+ result.reserve(ResolveAllItemsLimit);
- itemList.reserve(items.count());
- foreach (int index, indexes) {
- itemList.append(m_model->fileItem(index));
+ // Add visible items.
+ for (int i = m_firstVisibleIndex; i <= m_lastVisibleIndex; ++i) {
+ result.append(i);
}
-#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 Compace 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->showFoldersOnly();
+ // 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(qMin(endExtendedVisibleRange + 1, count - 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(qMax(beginExtendedVisibleRange - 1, 0), m_maximumVisibleItems);
+ for (int i = 0; i <= endFirstPage; ++i) {
+ result.append(i);
+ }
- if (!showFoldersOnly || dirEntry->d_type == DT_DIR) {
- ++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;
}
#include "kfileitemmodelrolesupdater.moc"
projects / dolphin.git / blobdiff