[REF] stock: alert on show details if not saved

It's not possible to click on the show details button if the picking is
not saved. It's a limitation of the webclient. This commit introduces a
waring telling the user to save the form view first.

addons/stock/views/stock_picking_views.xml

@@ -300,7 +300,7 @@
                                     <field name="reserved_availability" string="Reserved" attrs="{'column_invisible': ['|', ('parent.state','=', 'done'), ('parent.picking_type_code', '=', 'incoming')]}"/>
                                     <field name="quantity_done" string="Done" attrs="{'readonly': [('is_quantity_done_editable', '=', False)]}"/>
                                     <field name="product_uom" attrs="{'readonly': [('state', '!=', 'draft'), ('additional', '=', False)]}" options="{'no_open': True, 'no_create': True}" string="Unit of Measure" groups="product.group_uom"/>
-                                    <button name="action_show_details" string="Register lots, packs, location" type="object" icon="fa-list" attrs="{'invisible': [('show_details_visible', '=', False)]}"/>
+                                    <button name="action_show_details" string="Register lots, packs, location" type="object" icon="fa-list" attrs="{'invisible': [('show_details_visible', '=', False)]}" options='{"warn": true}'/>
                                 </tree>
                             </field>
                             <button class="oe_link oe_right" name="put_in_pack" type="object" string="&#8627;Put in Pack" attrs="{'invisible': [('state', 'in', ('done', 'cancel'))]}" groups="stock.group_tracking_lot"/>

addons/web/static/src/js/services/data_manager.js

@@ -408,6 +408,9 @@ return core.Class.extend({
             if (!_.isObject(node.attrs.modifiers)) {
                 node.attrs.modifiers = node.attrs.modifiers ? JSON.parse(node.attrs.modifiers) : {};
             }
+            if (!_.isObject(node.attrs.options) && node.tag === 'button') {
+                node.attrs.options = node.attrs.options ? JSON.parse(node.attrs.options) : {};
+            }
             if (node.tag === 'field') {
                 fieldsInfo[node.attrs.name] = self._processField(viewType,
                     fields[node.attrs.name], node.attrs ? _.clone(node.attrs) : {});

addons/web/static/src/js/views/list/list_renderer.js

@@ -4,6 +4,7 @@ odoo.define('web.ListRenderer', function (require) {
 var BasicRenderer = require('web.BasicRenderer');
 var config = require('web.config');
 var core = require('web.core');
+var Dialog = require('web.Dialog');
 var dom = require('web.dom');
 var field_utils = require('web.field_utils');
 var Pager = require('web.Pager');
@@ -323,7 +324,15 @@ var ListRenderer = BasicRenderer.extend({
                 });
             });
         } else {
-            $button.prop('disabled', true);
+            if (node.attrs.options.warn) {
+                var self = this;
+                $button.on("click", function (e) {
+                    e.stopPropagation();
+                    self.do_warn(_t("Warning"), _t('Please click on the "save" button first'));
+                });
+            } else {
+                $button.prop('disabled', true);
+            }
         }
 
         return $button;