[FIX] web_editor: Translating a product in the website

Steps to reproduce the bug:
-Change the default lang on the website to be different than en_US
-Edit the name of a product in the website

Bug:
The name of the product is changed in en_US and not in the language
set on the website. The lang is in fact removed from the context in
function saveElement(in addons/web_editor/static/rte.js).

opw:747084

addons/web_editor/models/ir_ui_view.py

@@ -6,7 +6,7 @@ import logging
 from lxml import etree, html
 
 from odoo.exceptions import AccessError
-from odoo import api, models
+from odoo import api, fields, models
 
 _logger = logging.getLogger(__name__)
 
@@ -33,6 +33,10 @@ class IrUiView(models.Model):
     def extract_embedded_fields(self, arch):
         return arch.xpath('//*[@data-oe-model != "ir.ui.view"]')
 
+    @api.model
+    def get_default_lang_code(self):
+        return False
+
     @api.model
     def save_embedded_field(self, el):
         Model = self.env[el.get('data-oe-model')]
@@ -44,7 +48,10 @@ class IrUiView(models.Model):
 
         if value is not None:
             # TODO: batch writes?
-            Model.browse(int(el.get('data-oe-id'))).write({field: value})
+            if self.get_default_lang_code() and field != 'arch' and not isinstance(Model._fields[field], fields.Html):
+                Model.browse(int(el.get('data-oe-id'))).with_context(lang=self.get_default_lang_code()).write({field: value})
+            else:
+                Model.browse(int(el.get('data-oe-id'))).write({field: value})
 
     def _pretty_arch(self, arch):
         # remove_blank_string does not seem to work on HTMLParser, and

addons/website/models/ir_ui_view.py

@@ -146,3 +146,12 @@ class View(models.Model):
         if full:
             return views
         return views.filtered(lambda v: v.customize_show)
+
+    @api.model
+    def get_default_lang_code(self):
+        website_id = self.env.context.get('website_id')
+        if website_id:
+            lang_code = self.env['website'].browse(website_id).default_lang_code
+            return lang_code
+        else:
+            return super(View, self).get_default_lang_code()