Fix crash #1 when filtering items

When filtering items it was possible that the current index got
an invalid value which resulted in accessing the URL of a
null-KFileItem.

There is still one (general) open issue in KFileItemModelRolesUpdater
(crash #2) where a KFileItem that is already null gets read.
It is not really related to filtering but can be triggered
quite easy when filtering huge directories with enabled previews.

CCBUG: 287642

1 files changed, 3 insertions, 3 deletions

diff --git a/src/kitemviews/kfileitemmodel.h b/src/kitemviews/kfileitemmodel.h
index a83d57ba8..5d0aa4203 100644
--- a/src/kitemviews/kfileitemmodel.h
+++ b/src/kitemviews/kfileitemmodel.h
@@ -275,9 +275,9 @@ private:
     bool isChildItem(int index) const;
 
     /**
-     * @return True if the given item matches with the name filter.
+     * @return True if the given item matches with the current set name filter.
      */
-    static bool matchesNameFilter(const KFileItem& item, const QString& nameFilter);
+    bool matchesNameFilter(const KFileItem& item) const;
 
 private:
     QWeakPointer<KDirLister> m_dirLister;
@@ -293,7 +293,7 @@ private:
     QHash<KUrl, int> m_items; // Allows O(1) access for KFileItemModel::index(const KFileItem& item)
 
     QString m_nameFilter;
-    KFileItemList m_filteredItems; // Items that got hidden by KFileItemModel::setNameFilter()
+    QSet<KFileItem> m_filteredItems; // Items that got hidden by KFileItemModel::setNameFilter()
 
     bool m_requestRole[RolesCount];