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https://invent.kde.org/system/dolphin
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FolderPanel: prevents scanning directory tree recursively
KFileItemListView contents are periodically scanned by KFileItemModelRolesUpdater. It uses then KDirectoryContentsCounter to scan directories to determine their size possibly recursively. Introduce a scanDirectories setting to disable directory scanning by KFileItemModelRolesUpdater. BUG: 426617 FIXED-IN: 20.08.3
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parent
5e9a869a39
commit
ffe01ee840
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@ -39,7 +39,8 @@ KFileItemListView::KFileItemListView(QGraphicsWidget* parent) :
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KStandardItemListView(parent),
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m_modelRolesUpdater(nullptr),
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m_updateVisibleIndexRangeTimer(nullptr),
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m_updateIconSizeTimer(nullptr)
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m_updateIconSizeTimer(nullptr),
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m_scanDirectories(true)
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{
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setAcceptDrops(true);
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@ -117,6 +118,19 @@ qlonglong KFileItemListView::localFileSizePreviewLimit() const
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return m_modelRolesUpdater ? m_modelRolesUpdater->localFileSizePreviewLimit() : 0;
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}
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void KFileItemListView::setScanDirectories(bool enabled)
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{
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m_scanDirectories = enabled;
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if (m_modelRolesUpdater) {
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m_modelRolesUpdater->setScanDirectories(m_scanDirectories);
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}
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}
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bool KFileItemListView::scanDirectories()
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{
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return m_scanDirectories;
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}
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QPixmap KFileItemListView::createDragPixmap(const KItemSet& indexes) const
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{
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if (!model()) {
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@ -247,6 +261,7 @@ void KFileItemListView::onModelChanged(KItemModelBase* current, KItemModelBase*
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if (current) {
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m_modelRolesUpdater = new KFileItemModelRolesUpdater(static_cast<KFileItemModel*>(current), this);
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m_modelRolesUpdater->setIconSize(availableIconSize());
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m_modelRolesUpdater->setScanDirectories(scanDirectories());
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applyRolesToModel();
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}
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@ -69,6 +69,13 @@ public:
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void setLocalFileSizePreviewLimit(qlonglong size);
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qlonglong localFileSizePreviewLimit() const;
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/**
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* If set to true, directories contents are scanned to determine their size
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* Default true
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*/
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void setScanDirectories(bool enabled);
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bool scanDirectories();
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QPixmap createDragPixmap(const KItemSet& indexes) const override;
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protected:
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@ -118,6 +125,7 @@ private:
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KFileItemModelRolesUpdater* m_modelRolesUpdater;
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QTimer* m_updateVisibleIndexRangeTimer;
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QTimer* m_updateIconSizeTimer;
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bool m_scanDirectories;
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friend class KFileItemListViewTest; // For unit testing
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};
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@ -67,6 +67,7 @@ KFileItemModelRolesUpdater::KFileItemModelRolesUpdater(KFileItemModel* model, QO
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m_resolvableRoles(),
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m_enabledPlugins(),
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m_localFileSizePreviewLimit(0),
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m_scanDirectories(true),
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m_pendingSortRoleItems(),
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m_pendingIndexes(),
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m_pendingPreviewItems(),
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@ -317,6 +318,16 @@ qlonglong KFileItemModelRolesUpdater::localFileSizePreviewLimit() const
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return m_localFileSizePreviewLimit;
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}
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void KFileItemModelRolesUpdater::setScanDirectories(bool enabled)
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{
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m_scanDirectories = enabled;
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}
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bool KFileItemModelRolesUpdater::scanDirectories() const
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{
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return m_scanDirectories;
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}
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void KFileItemModelRolesUpdater::slotItemsInserted(const KItemRangeList& itemRanges)
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{
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QElapsedTimer timer;
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@ -1001,7 +1012,9 @@ void KFileItemModelRolesUpdater::applySortRole(int index)
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data.insert("type", item.mimeComment());
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} else if (m_model->sortRole() == "size" && item.isLocalFile() && item.isDir()) {
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const QString path = item.localPath();
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m_directoryContentsCounter->scanDirectory(path);
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if (m_scanDirectories) {
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m_directoryContentsCounter->scanDirectory(path);
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}
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} else {
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// Probably the sort role is a baloo role - just determine all roles.
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data = rolesData(item);
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@ -1072,11 +1085,13 @@ QHash<QByteArray, QVariant> KFileItemModelRolesUpdater::rolesData(const KFileIte
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const bool getIsExpandableRole = m_roles.contains("isExpandable");
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if ((getSizeRole || getIsExpandableRole) && item.isDir()) {
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if (item.isLocalFile()) {
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if (item.isLocalFile() && !item.isSlow()) {
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// Tell m_directoryContentsCounter that we want to count the items
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// inside the directory. The result will be received in slotDirectoryContentsCountReceived.
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const QString path = item.localPath();
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m_directoryContentsCounter->scanDirectory(path);
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if (m_scanDirectories) {
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const QString path = item.localPath();
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m_directoryContentsCounter->scanDirectory(path);
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}
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} else if (getSizeRole) {
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data.insert("size", -1); // -1 indicates an unknown number of items
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}
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@ -152,6 +152,13 @@ public:
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void setLocalFileSizePreviewLimit(qlonglong size);
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qlonglong localFileSizePreviewLimit() const;
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/**
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* If set to true, directories contents are scanned to determine their size
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* Default true
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*/
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void setScanDirectories(bool enabled);
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bool scanDirectories() const;
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private slots:
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void slotItemsInserted(const KItemRangeList& itemRanges);
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void slotItemsRemoved(const KItemRangeList& itemRanges);
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@ -307,6 +314,7 @@ private:
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QSet<QByteArray> m_resolvableRoles;
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QStringList m_enabledPlugins;
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qulonglong m_localFileSizePreviewLimit;
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bool m_scanDirectories;
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// Items for which the sort role still has to be determined.
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QSet<KFileItem> m_pendingSortRoleItems;
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@ -131,6 +131,7 @@ void FoldersPanel::showEvent(QShowEvent* event)
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// This assures that no performance and memory overhead is given when the folders panel is not
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// used at all and stays invisible.
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KFileItemListView* view = new KFileItemListView();
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view->setScanDirectories(false);
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view->setWidgetCreator(new KItemListWidgetCreator<FoldersItemListWidget>());
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view->setSupportsItemExpanding(true);
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// Set the opacity to 0 initially. The opacity will be increased after the loading of the initial tree
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