iss1757 - Update API JS. Fix library headers.

Author: EJMFarrow

api/public/stack.php

@@ -186,12 +186,12 @@ function render_directory($dirdetails) {
         </div>
         <h2 id="stackapi_score" style="display: none">Score: <span id="score"></span></h2>
         <div id="stackapi_summary" class="col-lg-10" style="display: none">
-          <h2><?php echo stack_string('api_response')?>:</h2>
+          <h2>Response summary:</h2>
           <div id="response_summary" class="feedback outcome"></div>
         </div>
         <div id="stackapi_correct" class="col-lg-10" style="display: none">
+          <h2>Correct response:</h2>
           <div class="noninfo">
-            <h2>Response summary:</h2>
             <div id="formatcorrectresponse" class="feedback outcome"></div>
           </div>
         </div>

api/public/stackjsvle.js

@@ -111,6 +111,10 @@
             if (possible !== null) {
                 return possible;
             }
+            possible = iter.querySelector('textarea[id$="_' + name + '"]');
+            if (possible !== null) {
+                return possible;
+            }
             // Radios have interesting ids, but the name makes sense
             possible = iter.querySelector('input[id$="_' + name + '_1"][type=radio]');
             if (possible !== null) {
@@ -274,7 +278,7 @@
         switch (msg.type) {
         case 'register-input-listener':
             // 1. Find the input.
-            input = vle_get_input_element(msg.name, msg.src);
+            input = vle_get_input_element(msg.name, msg.src, !msg['limit-to-question']);
 
             if (input === null) {
                 // Requested something that is not available.
@@ -296,6 +300,14 @@
                 response.value = input.value;
                 response['input-type'] = 'select';
                 response['input-readonly'] = input.hasAttribute('disabled');
+            } else if (input.nodeName.toLowerCase() === 'textarea') {
+                response.value = input.value;
+                if (input.dataset.stackInputType === 'freetext') {
+                    response['input-type'] = 'freetext';
+                } else {
+                    response['input-type'] = 'textarea';
+                }
+                response['input-readonly'] = input.hasAttribute('disabled');
             } else if (input.type === 'checkbox') {
                 response.value = input.checked;
                 response['input-type'] = 'checkbox';