[ADD] web: StandaloneFieldManagerMixin

This mixin is meant to be used by widgets that instanciate
standalone field widgets.

addons/web/static/src/js/views/standalone_field_manager_mixin.js

@@ -0,0 +1,56 @@
+odoo.define('web.StandaloneFieldManagerMixin', function (require) {
+"use strict";
+
+/**
+ * The StandaloneFieldManagerMixin is a mixin, designed to be used by a widget
+ * that instanciates its own field widgets.
+ */
+
+var FieldManagerMixin = require('web.FieldManagerMixin');
+
+var StandaloneFieldManagerMixin = _.extend({}, FieldManagerMixin, {
+
+    /**
+     * @override
+     */
+    init: function () {
+        FieldManagerMixin.init.apply(this, arguments);
+
+        // registeredWidgets is a dict of all field widgets used by the widget
+        this.registeredWidgets = {};
+    },
+
+    //--------------------------------------------------------------------------
+    // Private
+    //--------------------------------------------------------------------------
+
+    /**
+     * This method will be called whenever a field value has changed (and has
+     * been confirmed by the model).
+     *
+     * @private
+     * @param {string} id basicModel Id for the changed record
+     * @param {string[]} fields the fields (names) that have been changed
+     * @param {OdooEvent} event the event that triggered the change
+     */
+    _confirmChange: function (id, fields, event) {
+        FieldManagerMixin._confirmChange.apply(this, arguments);
+        var record = this.model.get(id);
+        _.each(this.registeredWidgets[id], function (widget, fieldName) {
+            if (_.contains(fields, fieldName)) {
+                widget.reset(record, event);
+            }
+        });
+    },
+
+    _registerWidget: function (datapointID, fieldName, widget) {
+        if (!this.registeredWidgets[datapointID]) {
+            this.registeredWidgets[datapointID] = {};
+        }
+        this.registeredWidgets[datapointID][fieldName] = widget;
+    },
+});
+
+return StandaloneFieldManagerMixin;
+
+});

addons/web/views/webclient_templates.xml

@@ -196,6 +196,7 @@
         <script type="text/javascript" src="/web/static/src/js/views/basic/basic_controller.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/basic/basic_renderer.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/field_manager_mixin.js"></script>
+        <script type="text/javascript" src="/web/static/src/js/views/standalone_field_manager_mixin.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/view_registry.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/view_dialogs.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/form/form_renderer.js"></script>