KDirectoryContentsCounter: show intermediate dir size counting results, improve stopping, improve data caching

Two user visible changes:
 * we can see the dir size changing as it is updated.
 * This makes the file counting a lot more reactive, when changing directories for instance.

`KDirectoryContentsCounterWorker::walkDir` is not recursive anymore.

The cache is now shared and only a single thread is used to count size recursively.

1 files changed, 0 insertions, 8 deletions

diff --git a/src/kitemviews/kfileitemlistview.h b/src/kitemviews/kfileitemlistview.h
index 63bcf9e75..b4be0093e 100644
--- a/src/kitemviews/kfileitemlistview.h
+++ b/src/kitemviews/kfileitemlistview.h
@@ -71,13 +71,6 @@ public:
     void setLocalFileSizePreviewLimit(qlonglong size);
     qlonglong localFileSizePreviewLimit() const;
 
-    /**
-     * If set to true, directories contents are scanned to determine their size
-     * Default true
-     */
-    void setScanDirectories(bool enabled);
-    bool scanDirectories();
-
     QPixmap createDragPixmap(const KItemSet &indexes) const override;
 
     /**
@@ -137,7 +130,6 @@ private:
     KFileItemModelRolesUpdater *m_modelRolesUpdater;
     QTimer *m_updateVisibleIndexRangeTimer;
     QTimer *m_updateIconSizeTimer;
-    bool m_scanDirectories;
 
     friend class KFileItemListViewTest; // For unit testing
 };