'path-bar'
Location mode
Controls whether the file chooser shows just a path bar, or a visible entry
for the filename as well, for the benefit of typing-oriented users. The
possible values for these modes are "path-bar" and "filename-entry".
false
Show hidden files
Controls whether the file chooser shows hidden files or not.
false
Show folders first
If set to true, then folders are shown before files in the list.
false
Expand folders
This key is deprecated; do not use it.
true
Show file sizes
Controls whether the file chooser shows a column with file sizes.
true
Show file types
Controls whether the file chooser shows a column with file types.
'name'
Sort column
Can be one of "name", "modified", or "size". It controls
which of the columns in the file chooser is used for sorting
the list of files.
'ascending'
Sort order
Can be one of the strings "ascending" or "descending".
(-1, -1)
Window position
This key is ignored.
(-1, -1)
Window size
The size (width, height) of the GtkFileChooserDialog's window, in pixels.
'recent'
Startup mode
Either "recent" or "cwd"; controls whether the file chooser
starts up showing the list of recently-used files, or the
contents of the current working directory.
-1
Sidebar width
Width in pixels of the file chooser's places sidebar.
'24h'
Time format
Whether the time is shown in 24h or 12h format.
'regular'
Date format
The amount of detail to show in the Modified column.
'category'
Type format
Different ways to show the 'Type' column information.
Example outputs for a video mp4 file:
'mime' -> 'video/mp4'
'description' -> 'MPEG-4 video'
'category' -> 'Video'