Add the ability to set up custom text for short form and

and long form results.

common/lib/xmodule/xmodule/js/src/collapsible.coffee

@@ -9,20 +9,34 @@ class @Collapsible
     ###
     el: container
     ###
+    # standard longform + shortfom pattern
     el.find('.longform').hide()
     el.find('.shortform').append('<a href="#" class="full">See full output</a>')
+
+    # custom longform + shortform text pattern
+    short_custom = el.find('.shortform-custom') 
+    # set up each one individually
+    short_custom.each (index, elt) =>
+      open_text = $(elt).data('open-text')
+      close_text = $(elt).data('close-text')
+      $(elt).append("<a href='#' class='full-custom'>"+ open_text + "</a>")
+      $(elt).find('.full-custom').click (event) => @toggleFull(event, open_text, close_text)
+
+    # collapsible pattern
     el.find('.collapsible header + section').hide()
-    el.find('.full').click @toggleFull
+
+    # set up triggers
+    el.find('.full').click (event) => @toggleFull(event, "See full output", "Hide output")
     el.find('.collapsible header a').click @toggleHint
 
-  @toggleFull: (event) =>
+  @toggleFull: (event, open_text, close_text) =>
     event.preventDefault()
     $(event.target).parent().siblings().slideToggle()
     $(event.target).parent().parent().toggleClass('open')
-    if $(event.target).text() == 'See full output'
-      new_text = 'Hide output'
+    if $(event.target).text() == open_text
+      new_text = close_text
     else
-      new_text = 'See full output'
+      new_text = open_text
     $(event.target).text(new_text)
 
   @toggleHint: (event) =>

lms/templates/open_ended_feedback.html

 <section>
     <header>Feedback</header>
-    <div class="shortform">
+    <div class="shortform-custom" data-open-text='Show detailed results' data-close-text='Hide detailed results'>
         <div class="result-output">
             <p>Score: ${score}</p>
             % if grader_type == "ML":
@@ -14,4 +14,4 @@
         </div>
         ${rubric_feedback | n}
     </div>
-</section>
\ No newline at end of file
+</section>