|KIOFILEWIDGETS_EXPORT void||add (const QString &fileClass, const QString &directory)|
|KIOFILEWIDGETS_EXPORT QString||dir (const QString &fileClass)|
|KIOFILEWIDGETS_EXPORT QStringList||list (const QString &fileClass)|
The goal of this namespace is to make sure that, when the user needs to specify a file via the file selection dialog, this dialog will start in the directory most likely to contain the desired files.
This works as follows: Each time the file selection dialog is shown, the programmer can specify a "file-class". The file-dialog will then start with the directory associated with this file-class. When the dialog closes, the directory currently shown in the file-dialog will be associated with the file-class.
A file-class can either start with ':' or with '::'. If it starts with a single ':' the file-class is specific to the current application. If the file-class starts with '::' it is global to all applications.