sw: add a new .uno:TextFormFields UNO command

Currently .uno:TextFormField can be used to insert a new fieldmark, but
then there is no way to update it. Also, there is no way to update
several fieldmarks at the same time.

Given that the "ADDON" field type in a field mark can be used by
extensions like Zotero, it's useful in case these fieldmarks can be not
only inserted, but they can be also updated. This works by (in the LOK
case) calling getCommandValues() with .uno:TextFormFields, and then once
the client generates the new expanded values, there is no way to insert
these updated expanded values into the document currently.

Fix this by adding a new .uno:TextFormFields UNO command that can update
all fieldmarks matching a certain prefix (looking at their field
command).  This allows e.g. updating all Zotero citations or the
bibliography, but the API is generic to support any kind of ADDON
fields. Similar to insertion, the content can be multi-paragraph,
formatted HTML.

This required adjusting SfxUnoAnyItem::CreateDefault(), this way an UNO
command parameter can be an array of beans::PropertyValues, which is how
the client can provide details of multiple fieldmarks.

Change-Id: I44a1b1495ead79b92ccd0c9f6412a34cbec5d68b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/143361
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

1 files changed, 4 insertions, 1 deletions

diff --git a/sfx2/source/view/frame.cxx b/sfx2/source/view/frame.cxx
index eda62d4a29e9..f65d958e3fc4 100644
--- a/sfx2/source/view/frame.cxx
+++ b/sfx2/source/view/frame.cxx
@@ -58,7 +58,10 @@ using namespace ::com::sun::star::util;
 using namespace ::com::sun::star::frame;
 using namespace ::com::sun::star::container;
 
-SfxPoolItem* SfxUnoAnyItem::CreateDefault() { SAL_WARN( "sfx", "No SfxUnoAnyItem factory available"); return nullptr; }
+SfxPoolItem* SfxUnoAnyItem::CreateDefault()
+{
+    return new SfxUnoAnyItem(0, uno::Any());
+}
 
 SfxPoolItem* SfxUnoFrameItem::CreateDefault()
 {