Persist step info.

problem_builder/mentoring.py

@@ -834,6 +834,14 @@ class MentoringWithExplicitStepsBlock(BaseMentoringBlock, StudioContainerWithNes
         scope=Scope.settings
     )
 
+    # User state
+    step = Integer(
+        # Keep track of the student progress.
+        default=0,
+        scope=Scope.user_state,
+        enforce_type=True
+    )
+
     editable_fields = ('display_name',)
 
     @lazy
@@ -900,6 +908,14 @@ class MentoringWithExplicitStepsBlock(BaseMentoringBlock, StudioContainerWithNes
             NestedXBlockSpec(OnAssessmentReviewMentoringMessageShim, boilerplate='on-assessment-review'),
         ]
 
+    @XBlock.json_handler
+    def update_step(self, step, suffix=''):
+        if step < len(self.steps):
+            self.step = step
+        return {
+            'step': self.step
+        }
+
     def author_edit_view(self, context):
         """
         Add some HTML to the author view that allows authors to add child blocks.

problem_builder/public/js/mentoring_with_steps.js

@@ -3,14 +3,27 @@ function MentoringWithStepsBlock(runtime, element) {
     var steps = runtime.children(element).filter(
         function(c) { return c.element.className.indexOf('pb-mentoring-step') > -1; }
     );
-    var active_child = -1;
-    var checkmark, submitDOM, nextDOM;
+    var step = $('.mentoring', element).data('step');
+    var active_child, checkmark, submitDOM, nextDOM;
 
     function isLastChild() {
         return (active_child === steps.length-1);
     }
 
+    function updateStep() {
+        var handlerUrl = runtime.handlerUrl(element, 'update_step');
+        $.post(handlerUrl, JSON.stringify(step+1))
+            .success(function(response) {
+                step = response.step;
+                console.log('Step: ' + step);
+            });
+    }
+
     function handleResults(response) {
+        // Update step so next step is shown on page reload (even if user does not click "Next Step")
+        updateStep();
+
+        // Update UI
         if (response.completed === 'correct') {
             checkmark.addClass('checkmark-correct icon-ok fa-check');
         } else if (response.completed === 'partial') {
@@ -106,6 +119,8 @@ function MentoringWithStepsBlock(runtime, element) {
         };
         initSteps(options);
 
+        active_child = step;
+        active_child -= 1;
         displayNextChild();
     }
 

problem_builder/step.py

@@ -75,13 +75,15 @@ class MentoringStepBlock(
     STUDIO_LABEL = _(u"Mentoring Step")
     CATEGORY = 'pb-mentoring-step'
 
-    # Fields:
+    # Settings
     display_name = String(
         display_name=_("Step Title"),
         help=_('Leave blank to use sequential numbering'),
         default="",
         scope=Scope.content
     )
+
+    # User state
     student_results = List(
         # Store results of student choices.
         default=[],