make QFileSystemModel::rmdir(dir) remove dir from fileInfoGatherer

Otherwise directories cannot be deleted as long as they are watched,
since the fileInfoGatherer keeps a QFileInfo object with open file
handles.

Reviewed-by: Joao
Task-number: QTBUG-8241

2 files changed, 9 insertions, 3 deletions

diff --git a/src/gui/dialogs/qfilesystemmodel.cpp b/src/gui/dialogs/qfilesystemmodel.cpp
index f9f9df8..86f2920 100644
--- a/src/gui/dialogs/qfilesystemmodel.cpp
+++ b/src/gui/dialogs/qfilesystemmodel.cpp
@@ -1631,6 +1631,14 @@ bool QFileSystemModel::event(QEvent *event)
     return QAbstractItemModel::event(event);
 }
 
+bool QFileSystemModel::rmdir(const QModelIndex &aindex) const
+{
+    QString path = filePath(aindex);
+    QFileSystemModelPrivate * d = const_cast<QFileSystemModelPrivate*>(d_func());
+    d->fileInfoGatherer.removePath(path);
+    return QDir().rmdir(path);
+}
+
 /*!
      \internal
 
diff --git a/src/gui/dialogs/qfilesystemmodel.h b/src/gui/dialogs/qfilesystemmodel.h
index 1e4d673..0b1fa47 100644
--- a/src/gui/dialogs/qfilesystemmodel.h
+++ b/src/gui/dialogs/qfilesystemmodel.h
@@ -139,7 +139,7 @@ public:
     QDateTime lastModified(const QModelIndex &index) const;
 
     QModelIndex mkdir(const QModelIndex &parent, const QString &name);
-    inline bool rmdir(const QModelIndex &index) const;
+    bool rmdir(const QModelIndex &index) const; // ### Qt5: should not be const
     inline QString fileName(const QModelIndex &index) const;
     inline QIcon fileIcon(const QModelIndex &index) const;
     QFile::Permissions permissions(const QModelIndex &index) const;
@@ -163,8 +163,6 @@ private:
     friend class QFileDialogPrivate;
 };
 
-inline bool QFileSystemModel::rmdir(const QModelIndex &aindex) const
-{ QDir dir; return dir.rmdir(filePath(aindex)); }
 inline QString QFileSystemModel::fileName(const QModelIndex &aindex) const
 { return aindex.data(Qt::DisplayRole).toString(); }
 inline QIcon QFileSystemModel::fileIcon(const QModelIndex &aindex) const