ScriptForge - (SFDocuments) Fix SF_Base.OpenFormDocument()

When a Base form is:
1. opened with OpenFormDocument(), then closed
2. Opened manually in Edit mode, then closed
3. Reopened with OpenFormDocument() in normal mode
- it again gets opened in Edit mode
- its closure is not executed, neither by program nor manually

The OpenFormDocument() method is simplified:
the invoked loadComponent method may be executed even when
the form is already open. It simply activates the form which
is exactly the expected bahaviour.

Additionally:
- the opening mode is checked after the open and, if not
matching the expected DesignMode argument, reset.
- the alive check of a form (IsStillAlive()) does not require
a database connection anymore

Change-Id: I5f55e45b246867d19e514e0d820f164790dec300
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/114092
Tested-by: Jenkins
Tested-by: Jean-Pierre Ledure <jp@ledure.be>
Reviewed-by: Jean-Pierre Ledure <jp@ledure.be>

0 files changed, 0 insertions, 0 deletions