add option to use the django user language

README.rst

@@ -243,6 +243,32 @@ Custom storage example:
           location = os.path.join(settings.MEDIA_ROOT, "django_ckeditor_5")
           base_url = urljoin(settings.MEDIA_URL, "django_ckeditor_5/")
 
+
+Changing the language:
+^^^^^^^^^^^^^^^^^^^^^^
+You can change the language via the ``language`` key in the config
+
+ .. code-block:: python
+
+      CKEDITOR_5_CONFIGS = {
+        'default': {
+            'toolbar': ['heading', '|', 'bold', 'italic', 'link',
+                        'bulletedList', 'numberedList', 'blockQuote', 'imageUpload', ],
+            'language': 'de',
+        },
+
+``language`` can be either:
+
+1. a string containing a single language
+2. a list of languages
+3. a dict ``{"ui": <a string (1) or a list of languages (2)>}``
+
+If you want the language to change with the user language in django
+you can add ``CKEDITOR_5_USER_LANGUAGE=True`` to your django settings.
+Additionally you will have to list all available languages in the ckeditor
+config as shown above.
+
+
 Installing from GitHub:
 ^^^^^^^^^^^^^^^^^^^^^^^
   .. code-block:: bash

django_ckeditor_5/widgets.py

@@ -3,6 +3,7 @@
 from django.forms.renderers import get_default_renderer
 from django.urls import reverse
 from django.utils.safestring import mark_safe
+from django.utils.translation import get_language
 
 if get_version() >= "4.0":
     from django.utils.translation import gettext_lazy as _
@@ -49,19 +50,30 @@ class Media:
         custom_css = getattr(settings, "CKEDITOR_5_CUSTOM_CSS", None)
         if custom_css:
             css["all"].append(custom_css)
-        js = ["django_ckeditor_5/dist/bundle.js" ]
+        js = ["django_ckeditor_5/dist/bundle.js"]
         configs = getattr(settings, "CKEDITOR_5_CONFIGS", None)
         if configs is not None:
             for config in configs:
                 language = configs[config].get('language')
                 if language:
-                    if isinstance(language, str) and language != "en":
-                        js += [f"django_ckeditor_5/dist/translations/{language}.js" ]
-                    elif isinstance(language, dict) and language.get('ui') and language["ui"] != "en":
-                        js += [f"django_ckeditor_5/dist/translations/{language['ui']}.js" ]
+                    languages = []
+                    if isinstance(language, dict) and language.get('ui'):
+                        language = language.get('ui')
+                    elif isinstance(language, str):
+                        languages.append(language)
+                    elif isinstance(language, list):
+                        languages = language
+                    for lang in languages:
+                        if lang != "en":
+                            js += [f"django_ckeditor_5/dist/translations/{lang}.js"]
 
     def render(self, name, value, attrs=None, renderer=None):
         context = super().get_context(name, value, attrs)
+        use_language = getattr(settings, "CKEDITOR_5_USER_LANGUAGE", False)
+        if use_language:
+            language = get_language().lower()
+            if language:
+                self.config["language"] = language
 
         if renderer is None:
             renderer = get_default_renderer()