Merge branch '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.6-integration

* '4.6' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
  Revert "Add a children private property needed for QML to support QGraphicsObject"
  Revert "struct -> class, it's better."
  Revert "Add NOTIFY to size property so QML bindings are working fine."
  Revert "Better handling for NOTIFY in QGraphicsWidget regarding geometry changes"
  Revert "Add a a layout property in QGraphicsWidget."
  Add a workaround for a bug in Mac filesystem watcher.
  Another "off by 1" problem in OpenVG - in paths this time.
  Doc: Added links and notes to modules, ActiveQt and XMLPatterns docs.
  Compile on MingW
  struct -> class, it's better.
  Add a a layout property in QGraphicsWidget.
  Fix QFileSystemModel to not install useless watchers on the filesystem

1 files changed, 10 insertions, 0 deletions

diff --git a/src/gui/dialogs/qfilesystemmodel.cpp b/src/gui/dialogs/qfilesystemmodel.cpp
index 6fd947c..24faa59 100644
--- a/src/gui/dialogs/qfilesystemmodel.cpp
+++ b/src/gui/dialogs/qfilesystemmodel.cpp
@@ -1361,6 +1361,16 @@ QModelIndex QFileSystemModel::setRootPath(const QString &newPath)
     if (!showDrives && !newPathDir.exists())
         return d->index(rootPath());
 
+    //We remove the watcher on the previous path
+    if (!rootPath().isEmpty() && rootPath() != QLatin1String(".")) {
+        //This remove the watcher for the old rootPath
+        d->fileInfoGatherer.removePath(rootPath());
+        //This line "marks" the node as dirty, so the next fetchMore
+        //call on the path will ask the gatherer to install a watcher again
+        //But it doesn't re-fetch everything
+        d->node(rootPath())->populatedChildren = false;
+    }
+
     // We have a new valid root path
     d->rootDir = newPathDir;
     QModelIndex newRootIndex;