gtktiledviewer: fix incorrect undo/redo state

Edit state = false disabled undo, then edit state = true enabled the
undo button, even the last LOK callback was '.uno:Undo=disabled'.  Fix
this by storing the LOK state in a map, and using it when edit is
enabled.

With this, clicking on the Edit button right after loading a document
results disabled undo/redo buttons as expected.

Change-Id: Id6023f976f135555a43486f71603c823e59d8d60
Reviewed-on: https://gerrit.libreoffice.org/28003
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>
(cherry picked from commit 5cb52cf97d04859c0c730cf03430254041d6388b)

0 files changed, 0 insertions, 0 deletions