tdf#126665 Remember last used file picker directory

This introduces internal tracking of last used directories.
Each caller of the file picker can pass a "context". The selected
directory will then be saved & restored when opening the file picker
with the same context again.

After ffa636ba74b04b3258ec9a696bc4eac33581fa24 , the Windows file picker
no longer tracks the last used directory itself.
This is a replacement and an improvement at the same time, since there is not
one global last used directory, but one per context.

Change-Id: I10650cfb9359922690954fa65c89b4e47477e2c5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/118597
Tested-by: Jenkins
Reviewed-by: Heiko Tietze <heiko.tietze@documentfoundation.org>
Reviewed-by: Samuel Mehrbrodt <samuel.mehrbrodt@allotropia.de>

0 files changed, 0 insertions, 0 deletions