added navs to get all categories

added generate_navbar() to show all categories

Fixes: #38

uitwww/src/news/views.py

@@ -27,14 +27,17 @@ CACHE_FILE = "news-cache.json"
 
 class News:
 
-    @staticmethod
-    def prepare_blueprint(app):
+    def __init__(self, debug: bool = False):
+        self.navs = []
+
+    def prepare_blueprint(self, app):
         """
         Prepare a blueprint with the news pages
         """
         bp = flask.Blueprint("news", __name__)
 
         nw_cl = GetNews(os.path.join(app.instance_path, "news"))
+        self.navs = nw_cl.category
 
         @bp.route("/")
         @cache.enable
@@ -57,3 +60,16 @@ class News:
             )
 
         return bp
+
+    def generate_navbar(self):
+        """Generate the sub-navbar for /news"""
+        result = []
+        for name in self.navs:
+            result.append(
+                {
+                    "name": name.capitalize(),
+                    "endpoint": "news.list",
+                    "endpoint-args": {"category": name},
+                }
+            )
+        return result