add guessing type of schema

jsonform/gadget_json_generated_form_child.js

@@ -22,6 +22,48 @@
     return typeof doc;
   }
 
+  function guessSchemaType(schema) {
+    var property_name;
+    for (property_name in schema) {
+      if (schema.hasOwnProperty(property_name)) {
+        switch (property_name) {
+          // case "allOf":
+          // case "anyOf":
+          // case "oneOf":
+          //   return false;
+        case "required":
+        case "maxProperties":
+        case "minProperties":
+        case "additionalProperties":
+        case "properties":
+        case "patternProperties":
+        case "dependencies":
+        case "propertyNames":
+          return "object";
+        case "additionalItems":
+        case "items":
+        case "maxItems":
+        case "minItems":
+        case "uniqueItems":
+        case "contains":
+          return "array";
+        case "maxLength":
+        case "minLength":
+        case "pattern":
+        case "contentEncoding":
+        case "contentMediaType":
+          return "string";
+        case "multipleOf":
+        case "maximum":
+        case "exclusiveMaximum":
+        case "minimum":
+        case "exclusiveMinimum":
+          return "number";
+        }
+      }
+    }
+  }
+
   function createElement(type, props) {
     var element = document.createElement(type),
       key;
@@ -1484,11 +1526,8 @@
           options.delete_button = !options.required;
         }
       }
-      if (options.top && !options.type && !schema.type) {
-        // XXX use "object" as type for support buggy
-        // slapos schemas where some times type absent
-        // i need remove it in future
-        options.type = "object";
+      if (!options.type && schema && !schema.type) {
+        options.type = guessSchemaType(schema);
       }
       while (root.firstChild) {
         root.removeChild(root.firstChild);