make possible use complex schema_arr fields as array items

jsonform/gadget_json_generated_form_child.js

@@ -178,13 +178,16 @@
     return input;
   }
 
-  function render_enum_with_title(g, schema_arr, json_document) {
+  function render_enum_with_title(g, schema_arr, json_document, selected_schema) {
     var input = document.createElement("select"),
       option,
       i,
       ser_value,
       selected = false;
     input.size = 1;
+    if (json_document === undefined && selected_schema !== undefined) {
+      json_document = selected_schema.schema.const;
+    }
     if (schema_arr[0].schema.default) {
       if (json_document === undefined) {
         json_document = schema_arr[0].schema.default;
@@ -333,6 +336,7 @@
           type: options.type,
           required: options.required,
           delete_button: options.delete_button,
+          selected_schema: options.selected_schema,
           schema_arr: options.schema_arr,
           document: options.json_document,
           display_label: options.parent_type !== "array",
@@ -797,7 +801,8 @@
                 gadget: gadget,
                 parent_type: 'array',
                 type: value.type,
-                schema_arr: [value]
+                selected_schema: value,
+                schema_arr: schema_arr
               })
                 .push(element_append);
             }));
@@ -824,7 +829,8 @@
                 gadget: gadget,
                 parent_type: 'array',
                 type: value.type,
-                schema_arr: [value]
+                selected_schema: value,
+                schema_arr: schema_arr
               })
                 .push(element_append);
             }));
@@ -858,8 +864,12 @@
       type_changed,
       queue = RSVP.Queue();
 
+    if (options.selected_schema) {
+      schema_ob = options.selected_schema;
+    } else {
       // XXX if (ret_arr.length > 1) notify user
       schema_ob = schemaArrFilteredByDocument(schema_arr, json_document)[0];
+    }
     schema = schema_ob.schema;
     schema_path = schema_ob.schema_path;
 
@@ -941,7 +951,7 @@
         .join(" ")
         // use non-breaking hyphen
         .replace(/-/g, "‑");
-    if (label_text) {
+    if (property_name || options.top) {
       if (options.top) {
         label = document.createElement("span");
         label.textContent = label_text;
@@ -961,7 +971,7 @@
     // render input begin
 
     if (!input && schema_arr[0].is_arr_of_const) {
-      input = render_enum_with_title(gadget, schema_arr, json_document);
+      input = render_enum_with_title(gadget, schema_arr, json_document, options.selected_schema);
     }
     if (!input && schema.const !== undefined) {
       input = render_const(gadget, schema, json_document);
@@ -1850,6 +1860,7 @@
         options.document, root,
         {
           type: options.type,
+          selected_schema: options.selected_schema,
           required: options.required,
           delete_button: options.delete_button,
           top: options.top