sd signature line: create signature with pre-selected cert, if available

This makes the "finish signing" button do what it says. The signature
line shape is not yet in the output, though.

(cherry picked from commit 5e040ad05012f91d0ea5116659e58222eea53668)

Change-Id: I096210fe505b4c9eafb56eae6c4706e454bac45c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/97181
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

3 files changed, 55 insertions, 30 deletions

diff --git a/include/sfx2/objsh.hxx b/include/sfx2/objsh.hxx
index b3627a6b8788..4c0ea7f22f09 100644
--- a/include/sfx2/objsh.hxx
+++ b/include/sfx2/objsh.hxx
@@ -761,6 +761,9 @@ public:
 
     /// Is this read-only object shell opened via .uno:SignPDF?
     bool IsSignPDF() const;
+
+    /// Gets the certificate that is already picked by the user but not yet used for signing.
+    css::uno::Reference<css::security::XCertificate> GetSignPDFCertificate() const;
 };
 
 #define SFX_GLOBAL_CLASSID \
diff --git a/sfx2/source/doc/objserv.cxx b/sfx2/source/doc/objserv.cxx
index 96c23314a5cb..09e4bba8bde8 100644
--- a/sfx2/source/doc/objserv.cxx
+++ b/sfx2/source/doc/objserv.cxx
@@ -122,6 +122,7 @@
 #include <cppuhelper/implbase.hxx>
 #include <unotools/ucbstreamhelper.hxx>
 #include <unotools/streamwrap.hxx>
+#include <comphelper/sequenceashashmap.hxx>
 
 #include <svx/unoshape.hxx>
 #include <svx/xlineit0.hxx>
@@ -423,6 +424,36 @@ bool SfxObjectShell::IsSignPDF() const
     return false;
 }
 
+uno::Reference<security::XCertificate> SfxObjectShell::GetSignPDFCertificate() const
+{
+    uno::Reference<frame::XModel> xModel = GetBaseModel();
+    if (!xModel.is())
+    {
+        return uno::Reference<security::XCertificate>();
+    }
+
+    uno::Reference<drawing::XShapes> xShapes(xModel->getCurrentSelection(), uno::UNO_QUERY);
+    if (!xShapes.is() || xShapes->getCount() < 1)
+    {
+        return uno::Reference<security::XCertificate>();
+    }
+
+    uno::Reference<beans::XPropertySet> xShapeProps(xShapes->getByIndex(0), uno::UNO_QUERY);
+    if (!xShapeProps.is())
+    {
+        return uno::Reference<security::XCertificate>();
+    }
+
+    comphelper::SequenceAsHashMap aMap(xShapeProps->getPropertyValue("InteropGrabBag"));
+    auto it = aMap.find("SignatureCertificate");
+    if (it == aMap.end())
+    {
+        return uno::Reference<security::XCertificate>();
+    }
+
+    return uno::Reference<security::XCertificate>(it->second, uno::UNO_QUERY);
+}
+
 void SfxObjectShell::ExecFile_Impl(SfxRequest &rReq)
 {
     weld::Window* pDialogParent = rReq.GetFrameWeld();
@@ -440,7 +471,24 @@ void SfxObjectShell::ExecFile_Impl(SfxRequest &rReq)
     if( SID_SIGNATURE == nId || SID_MACRO_SIGNATURE == nId )
     {
         if ( QueryHiddenInformation( HiddenWarningFact::WhenSigning, nullptr ) == RET_YES )
-            ( SID_SIGNATURE == nId ) ? SignDocumentContent(pDialogParent) : SignScriptingContent(pDialogParent);
+        {
+            if (SID_SIGNATURE == nId)
+            {
+                uno::Reference<security::XCertificate> xCertificate = GetSignPDFCertificate();
+                if (xCertificate.is())
+                {
+                    SignDocumentContentUsingCertificate(xCertificate);
+                }
+                else
+                {
+                    SignDocumentContent(pDialogParent);
+                }
+            }
+            else
+            {
+                SignScriptingContent(pDialogParent);
+            }
+        }
         return;
     }
 
diff --git a/sfx2/source/view/viewfrm.cxx b/sfx2/source/view/viewfrm.cxx
index 8d0d94a6181d..75ec246b4fb6 100644
--- a/sfx2/source/view/viewfrm.cxx
+++ b/sfx2/source/view/viewfrm.cxx
@@ -1238,41 +1238,15 @@ const SvBorder& SfxViewFrame::GetBorderPixelImpl() const
     return m_pImpl->aBorder;
 }
 
-namespace
-{
-/// Does the current selection have a shape with an associated signing certificate?
-bool IsSignWithCert(SfxViewShell* pViewShell)
-{
-    uno::Reference<frame::XModel> xModel = pViewShell->GetCurrentDocument();
-    if (!xModel.is())
-    {
-        return false;
-    }
-
-    uno::Reference<drawing::XShapes> xShapes(xModel->getCurrentSelection(), uno::UNO_QUERY);
-    if (!xShapes.is() || xShapes->getCount() < 1)
-    {
-        return false;
-    }
-
-    uno::Reference<beans::XPropertySet> xShapeProps(xShapes->getByIndex(0), uno::UNO_QUERY);
-    if (!xShapeProps.is())
-    {
-        return false;
-    }
-
-    comphelper::SequenceAsHashMap aMap(xShapeProps->getPropertyValue("InteropGrabBag"));
-    return aMap.find("SignatureCertificate") != aMap.end();
-}
-}
-
 void SfxViewFrame::AppendReadOnlyInfobar()
 {
     bool bSignPDF = m_xObjSh->IsSignPDF();
     bool bSignWithCert = false;
     if (bSignPDF)
     {
-        bSignWithCert = IsSignWithCert(GetViewShell());
+        SfxObjectShell* pObjectShell = GetObjectShell();
+        uno::Reference<security::XCertificate> xCertificate = pObjectShell->GetSignPDFCertificate();
+        bSignWithCert = xCertificate.is();
     }
 
     auto pInfoBar = AppendInfoBar("readonly", "",