[IMP] ir_qweb: provide a clean way to ovverride the AssetsBundle to use

This revision follows revisions
- 9cd982bcc8
- df4072b0b4

We noticed modules implementing multi-websites features
override `_get_asset` to be able to provide their
own overriden `AssetsBunble` class.

Private methods are meant for internal usage of the code/module,
overriding is never a good idea given the fact their signature
can change. As this is the case in commit
9cd982bcc8.

That said, we understand their was no other way to go.
We therefore decide to provide one,
by adding a method that can be overriden to pass
their own AssetsBunble class instance.

opw-1860136

odoo/addons/base/ir/ir_qweb/ir_qweb.py

@@ -286,6 +286,9 @@ class IrQWeb(models.AbstractModel, QWeb):
 
     # method called by computing code
 
+    def get_asset_bundle(self, xmlid, files, remains=None, env=None):
+        return AssetsBundle(xmlid, files, remains=remains, env=env)
+
     # compatibility to remove after v11 - DEPRECATED
     @tools.conditional(
         'xml' not in tools.config['dev_mode'],
@@ -293,7 +296,7 @@ class IrQWeb(models.AbstractModel, QWeb):
     )
     def _get_asset(self, xmlid, options, css=True, js=True, debug=False, async=False, values=None):
         files, remains = self._get_asset_content(xmlid, options)
-        asset = AssetsBundle(xmlid, files, remains, env=self.env)
+        asset = self.get_asset_bundle(xmlid, files, remains, env=self.env)
         return asset.to_html(css=css, js=js, debug=debug, async=async, url_for=(values or {}).get('url_for', lambda url: url))
 
     @tools.conditional(
@@ -304,7 +307,7 @@ class IrQWeb(models.AbstractModel, QWeb):
     )
     def _get_asset_nodes(self, xmlid, options, css=True, js=True, debug=False, async=False, values=None):
         files, remains = self._get_asset_content(xmlid, options)
-        asset = AssetsBundle(xmlid, files, env=self.env)
+        asset = self.get_asset_bundle(xmlid, files, env=self.env)
         remains = [node for node in remains if (css and node[0] == 'link') or (js and node[0] != 'link')]
         return remains + asset.to_node(css=css, js=js, debug=debug, async=async)