1 files changed, 51 insertions, 7 deletions
diff --git a/tex/context/base/mkiv/scrn-ini.mkvi b/tex/context/base/mkiv/scrn-ini.mkvi
index 0e00fb456..93dde6962 100644
--- a/tex/context/base/mkiv/scrn-ini.mkvi
+++ b/tex/context/base/mkiv/scrn-ini.mkvi
@@ -177,15 +177,52 @@
 
 %D Identity
 
+% \def\scrn_identity_synchronize
+%   {\clf_setupidentity
+%        title    {\interactionparameter\c!title}%
+%        subtitle {\interactionparameter\c!subtitle}%
+%        author   {\interactionparameter\c!author}%
+%      % creator  {ConTeXt - \contextversion}%
+%        date     {\interactionparameter\c!date}%
+%        keywords {\interactionparameter\c!keyword}%
+%    \relax}
+
+\newconditional\c_scrn_identity_preroll
+
+\installtexdirective
+  {interaction.identity.preroll}
+  {\settrue \c_scrn_identity_preroll}
+  {\setfalse\c_scrn_identity_preroll}
+
+\def\scrn_identity_prerolled#1%
+  {\begingroup
+   \edef\tempstring{\interactionparameter#1}%
+   \ifx\tempstring\empty
+     \endgroup
+   \else
+     \the\everypreroll
+     \nodestostring\tempstring{\tempstring}%
+     \normalexpanded{\endgroup\setexpandedinteractionparameter{#1}{\tempstring}}%
+   \fi}
+
 \def\scrn_identity_synchronize
-  {\clf_setupidentity
+  {\begingroup
+   \ifconditional\c_scrn_identity_preroll
+     \scrn_identity_prerolled\c!title
+     \scrn_identity_prerolled\c!subtitle
+     \scrn_identity_prerolled\c!author
+     \scrn_identity_prerolled\c!date
+     \scrn_identity_prerolled\c!keyword
+   \fi
+   \clf_setupidentity
        title    {\interactionparameter\c!title}%
        subtitle {\interactionparameter\c!subtitle}%
        author   {\interactionparameter\c!author}%
-       creator  {ConTeXt - \contextversion}%
+     % creator  {ConTeXt - \contextversion}%
        date     {\interactionparameter\c!date}%
        keywords {\interactionparameter\c!keyword}%
-   \relax}
+   \relax
+   \endgroup}
 
 \appendtoks
     \scrn_identity_synchronize
@@ -193,11 +230,18 @@
 
 % this comes before starttext
 
+\def\scrn_identity_document#1#2%
+  {\doifvariable{document}{metadata:#1}{\setupinteraction[#2=\documentvariable{metadata:#1}]}}
+
 \appendtoks % not interfaced i.e. english
-    \doifvariable{document}{metadata:author}  {\setupinteraction [\c!author=\documentvariable{metadata:author}]}%
-    \doifvariable{document}{metadata:title}   {\setupinteraction  [\c!title=\documentvariable{metadata:title}]}%
-    \doifvariable{document}{metadata:subject} {\setupinteraction[\c!subject=\documentvariable{metadata:subject}]}%
-    \doifvariable{document}{metadata:keywords}{\setupinteraction[\c!keyword=\documentvariable{metadata:keywords}]}%
+    \scrn_identity_document   {title}\c!title
+    \scrn_identity_document {subject}\c!subtitle
+    \scrn_identity_document{subtitle}\c!subtitle
+    \scrn_identity_document  {author}\c!author
+    \scrn_identity_document {authors}\c!author
+    \scrn_identity_document {keyword}\c!keyword
+    \scrn_identity_document{keywords}\c!keyword
+    \scrn_identity_document    {date}\c!date
 \to \everysetupdocument
 
 \setupinteraction