[renderjs_ui] Generic html5 input is not naive about missing values

Explicitely state which values represent empty values. Coercing to boolean is not sufficient.

bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_html5_input_js.js

-/*global window, rJS, RSVP, jIO */
+/*global window, document, rJS, RSVP, jIO */
 /*jslint indent: 2, maxerr: 3, maxlen: 80 */
-(function (window, rJS, RSVP, jIO) {
+(function (window, document, rJS, RSVP, jIO) {
   "use strict";
 
+  /** Missing value can have different values based on type.
+   *
+   * In general `undefined` and `null` are considered missing values
+   * Float is missing when `NaN`
+   */
+  function is_missing(value) {
+    if (value === undefined || value === null) {return true; }
+    if (typeof value === "number") {return window.isNaN(value); }
+    return false;
+  }
+
   rJS(window)
     .setState({
       editable: false,
       value: undefined,
       checked: undefined,
+      hidden: false,
       title: '',
       name: '',
       type: 'text',
@@ -19,8 +31,9 @@
     })
 
     .declareMethod('render', function (options) {
-      var state_dict = {
-          value: options.value || "",
+      return this.changeState({
+        // display nothing for missing values
+        value: is_missing(options.value) ? "" : options.value,
         checked: options.checked,
         editable: options.editable,
         required: options.required,
@@ -33,8 +46,7 @@
         trim: options.trim || false,
         append: options.append,
         prepend: options.prepend
-        };
-      return this.changeState(state_dict);
+      });
     })
 
     .onStateChange(function (modification_dict) {
@@ -199,4 +211,4 @@
       return this.notifyInvalid(evt.target.validationMessage);
     }, true, false);
 
-}(window, rJS, RSVP, jIO));
\ No newline at end of file
+}(window, document, rJS, RSVP, jIO));
\ No newline at end of file

bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_html5_input_js.xml

@@ -230,7 +230,7 @@
             </item>
             <item>
                 <key> <string>serial</string> </key>
-                <value> <string>961.40519.18664.56814</string> </value>
+                <value> <string>962.13886.9310.48640</string> </value>
             </item>
             <item>
                 <key> <string>state</string> </key>
@@ -248,7 +248,7 @@
                     </tuple>
                     <state>
                       <tuple>
-                        <float>1503560196.31</float>
+                        <float>1505894979.84</float>
                         <string>UTC</string>
                       </tuple>
                     </state>