[IMP] website, *: use "auto" widget for font customization

* theme_bootswatch, theme_default, website_theme_install

This commit makes use of the new 'auto' widget for font selection:
instead of enabling a template which will enable a scss file which sets
a font variable to a specific value... we directly allow to do a scss
custo which sets that value.

The code in charge of resetting font customizations on theme switching
is also moved and refactored here in website (instead of being specific
to each theme).

Part of https://github.com/odoo/odoo/pull/33442
task-1974659

Co-authored-by: qsm-odoo <qsm@odoo.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/addons/website/models/assets.py b/addons/website/models/assets.py
index c2a52588eaa..1bbd653bd47 100644
--- a/addons/website/models/assets.py
+++ b/addons/website/models/assets.py
@@ -1,12 +1,46 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+import re
+
 from odoo import models
 
 
 class Assets(models.AbstractModel):
     _inherit = 'web_editor.assets'
 
+    def make_scss_customization(self, url, values):
+        """
+        Makes a scss customization of the given file. That file must
+        contain a scss map including a line comment containing the word 'hook',
+        to indicate the location where to write the new key,value pairs.
+
+        Params:
+            url (str):
+                the URL of the scss file to customize (supposed to be a variable
+                file which will appear in the assets_common bundle)
+
+            values (dict):
+                key,value mapping to integrate in the file's map (containing the
+                word hook). If a key is already in the file's map, its value is
+                overridden.
+        """
+        custom_url = self.make_custom_asset_file_url(url, 'web.assets_common')
+        updatedFileContent = self.get_asset_content(custom_url) or self.get_asset_content(url)
+        updatedFileContent = updatedFileContent.decode('utf-8')
+        for name, value in values.items():
+            pattern = "'%s': %%s,\n" % name
+            regex = re.compile(pattern % ".+")
+            replacement = pattern % value
+            if regex.search(updatedFileContent):
+                updatedFileContent = re.sub(regex, replacement, updatedFileContent)
+            else:
+                updatedFileContent = re.sub(r'( *)(.*hook.*)', r'\1%s\1\2' % replacement, updatedFileContent)
+
+        # Bundle is 'assets_common' as this route is only meant to update
+        # variables scss files
+        self.save_asset(url, 'web.assets_common', updatedFileContent, 'scss')
+
     def _get_custom_attachment(self, custom_url, op='='):
         """
         See web_editor.Assets._get_custom_attachment