viewspecs handling callback function added

lib/emailViewWeb.dart

@@ -5,7 +5,6 @@ import 'augment.dart';
 import 'collapsableEmails.dart';
 import 'api_service.dart';
 
-
 class EmailView extends StatefulWidget {
   final List<String> emailContent;
   final String from;
@@ -44,6 +43,7 @@ class _EmailViewState extends State<EmailView> {
     {'id': 'marker3', 'x': 250, 'y': 300},
   ];
   String? _targetJumpNumbering;
+  String? _targetViewspecs;
 
   @override
   void initState() {
@@ -58,12 +58,19 @@ class _EmailViewState extends State<EmailView> {
   void _scrollToNumber(String spanId) {
     AugmentClasses.handleJump(spanId);
   }
+
   void _handleJumpRequest(String numbering) {
     setState(() {
       _targetJumpNumbering = numbering;
     });
   }
 
+  void _handleViewspecsRequest(String viewspecsCommand) {
+    setState(() {
+      _targetViewspecs = viewspecsCommand;
+    });
+  }
+
   // TODO: void _invisibility(String )  //to make purple numbers not visible
 
   @override
@@ -78,10 +85,9 @@ class _EmailViewState extends State<EmailView> {
             Column(
               children: [
                 EmailToolbar(
-                  onJumpToSpan: _handleJumpRequest,
-                  onButtonPressed: () => {
-                    print("email tool bar pressed")
-                  },
+                  onJumpToNumbering: _handleJumpRequest,
+                  onViewspecs: _handleViewspecsRequest,
+                  onButtonPressed: () => {print("email tool bar pressed")},
                 ),
                 Row(
                   // title of email
@@ -125,6 +131,7 @@ class _EmailViewState extends State<EmailView> {
                     threadHTML: widget.emailContent,
                     threadIDs: widget.id,
                     targetJumpNumbering: _targetJumpNumbering,
+                    targetViewspecs: _targetViewspecs,
                   ),
                 ),
               ],