tdf#116842 fix crashing when adding slides or spreadsheets

Change-Id: I957133e468fe43edd0ed1d76cdd180f20d6a86ac
Signed-off-by: Mert Tümer <merttumer7@gmail.com>
Reviewed-on: https://gerrit.libreoffice.org/52493Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

android/source/src/java/org/libreoffice/InvalidationHandler.java

@@ -251,10 +251,12 @@ public class InvalidationHandler implements Document.MessageCallback, Office.Mes
     }
 
     private void pageSizeChanged(String payload){
-        String[] bounds = payload.split(",");
-        int pageWidth = Integer.parseInt(bounds[0]);
-        int pageHeight = Integer.parseInt(bounds[1].trim());
-        LOKitShell.sendEvent(new LOEvent(LOEvent.PAGE_SIZE_CHANGED, pageWidth, pageHeight));
+        if(mContext.getTileProvider().isTextDocument()){
+            String[] bounds = payload.split(",");
+            int pageWidth = Integer.parseInt(bounds[0]);
+            int pageHeight = Integer.parseInt(bounds[1].trim());
+            LOKitShell.sendEvent(new LOEvent(LOEvent.PAGE_SIZE_CHANGED, pageWidth, pageHeight));
+        }
     }
 
     private void stateChanged(String payload) {