checkValidity(): fix error and improve invalid state information

gadget_json_generated_form.js

 /*jslint nomen: true, maxlen: 200, indent: 2, maxerr: 100*/
-/*global window, document, URL, rJS, RSVP, jIO, tv4 */
+/*global window, document, URL, rJS, RSVP, jIO, tv4, location */
 
-(function (window, document, rJS, RSVP, jIO, tv4) {
+(function (window, document, location, rJS, RSVP, jIO, tv4) {
   "use strict";
   var render_object,
     expandSchema;
@@ -1416,11 +1416,19 @@
           return tv4.validateMultiple(json_d, g.props.schema[""]);
         })
         .push(function (validation) {
-          var index,
-            tasks = [];
-
+          var i,
+            error_id,
+            error,
+            span,
+            tasks = [],
+            errors_block = g.element.querySelector("div.error-block");
+
+          if (errors_block) {
+            errors_block.parentNode.removeChild(errors_block);
+          }
           g.element.querySelectorAll(".error").forEach(function (error_message) {
             error_message.textContent = "";
+            error_message.removeAttribute("id");
             error_message.hidden = true;
           });
 
@@ -1433,37 +1441,58 @@
                 return false;
               });
           }
-          function print_error(message) {
+          span = document.createElement("span");
+          span.setAttribute("class", "error");
+          span.textContent = "errors: ";
+          errors_block = document.createElement("div");
+          errors_block.setAttribute("class", "subfield error-block");
+          errors_block.appendChild(span);
+
+          function print_error(error, errorUid, errorId) {
             return function (element) {
               var id = element.id,
-                error_message;
+                error_message,
+                a = document.createElement("a");
+              a.setAttribute("href", "#" + errorUid);
+              a.text = errorId;
               element.setAttribute("class", "error-input");
               error_message = element.querySelector("#" + id.replace("/", "\\/") + " > .error");
-              error_message.textContent = message;
+              error_message.appendChild(a);
+              error_message.setAttribute("id", errorUid);
+              error_message.appendChild(document.createTextNode(error.message));
               error_message.hidden = false;
+
+              a = document.createElement("a");
+              a.text = errorId;
+              a.setAttribute("data-error-link", "#" + errorUid);
+              a.setAttribute("class", "error-link");
+              errors_block.appendChild(a);
             };
           }
-          for (index in validation.errors) {
-            if (validation.errors.hasOwnProperty(index)) {
-              tasks.push(
-                g.getElementByPath(validation.errors[index].dataPath)
-                  .push(print_error(validation.errors[index].message))
-              );
-            }
+          for (i = 0; i < validation.errors.length; i += 1) {
+            error = validation.errors[i];
+            error_id = (i + 1).toString();
+            tasks.push(
+              g.getElementByPath(error.dataPath || "/")
+                .push(print_error(error, "error" + error_id, error_id))
+            );
           }
 
-          for (index in validation.missing) {
-            if (validation.missing.hasOwnProperty(index)) {
-              tasks.push(
-                g.getElementByPath(validation.missing[index].dataPath)
-                  .push(print_error(validation.missing[index].message))
-              );
-            }
+          for (i = 0; i < validation.missing.length; i += 1) {
+            error = validation.missing[i];
+            error_id = (i + 1).toString();
+            tasks.push(
+              g.getElementByPath(error.dataPath || "/")
+                .push(print_error(error, "missing" + error_id, error_id))
+            );
           }
           return RSVP.Queue()
             .push(function () {
               return RSVP.all(tasks);
             })
+            .push(function () {
+              g.element.insertBefore(errors_block, g.element.firstChild);
+            })
             .push(g.notifyInvalid.bind(g))
             .push(function () {
               return false;
@@ -1631,8 +1660,14 @@
         return this.selfRemove(evt);
       }
 
-      var button_list = this.props.add_buttons,
+      var link = evt.target.getAttribute("data-error-link"),
+        button_list = this.props.add_buttons,
         i;
+      if (link) {
+        location.href = link;
+        return;
+      }
+
       for (i = 0; i < button_list.length; i = i + 1) {
         if (evt.target === button_list[i].element) {
           return button_list[i].event(evt);
@@ -1663,4 +1698,4 @@
       return getFormValuesAsJSONDict(g);
     });
 
-}(window, document, rJS, RSVP, jIO, tv4));
\ No newline at end of file
+}(window, document, location, rJS, RSVP, jIO, tv4));
\ No newline at end of file