[feature] Start from the last used directory

[WojciechMula]

I find it more friendly, when I can open a file from the same directory I opened file last time.
My proposal is to provide a new configuration enum that would control how a dialog behave:

• always use the initial directory (default),
• always use the last directory a user visited (with the full directory history?),
• use the last directory only if user selected something, otherwise use the initial directory.

Does it sound sane?

[fluxxcode]

Hey, thanks for the issue.

The idea sounds good, but can be quite confusing if an app uses multiple file dialog objects.

You can already implement this yourself. Something like:

if let Some(path) = file_dialog.take_selected() {
    file_dialog.config_mut().initial_directory = path;
}

Then the last selected path should always be opened. But I have not tested it myself

[WojciechMula]

The idea sounds good, but can be quite confusing if an app uses multiple file dialog objects.

Yes, this would need to be a setting per instance.

Anyways, I used your suggestion and for now it's a good workaround, thanks.