Initial commit.

custom_components/favicon/__init__.py

@@ -0,0 +1,50 @@
+import logging
+
+import homeassistant.components.frontend
+from homeassistant.components.frontend import _frontend_root
+
+_LOGGER = logging.getLogger(__name__)
+
+DOMAIN = "favicon"
+
+async def async_setup(hass, config):
+
+    favicon = config[DOMAIN].get('favicon')
+    apple = config[DOMAIN].get('apple')
+
+    if favicon or apple:
+        get_template = homeassistant.components.frontend.IndexView.get_template
+
+        def new_get_template(self):
+            tpl = get_template(self)
+            render = tpl.render
+            def new_render(*args, **kwargs):
+                text = render(*args, **kwargs)
+                if favicon:
+                    text = text.replace("/static/icons/favicon.ico", favicon)
+                if apple:
+                    text = text.replace("/static/icons/favicon-apple-180x180.png", apple)
+                return text
+            tpl.render = new_render
+            return tpl
+
+        homeassistant.components.frontend.IndexView.get_template = new_get_template
+
+    icons = []
+    for size in config[DOMAIN]:
+        if not isinstance(size, int):
+            continue
+        i = config[DOMAIN].get(size)
+        if i:
+            icons.append({
+                "src": i,
+                "sizes": f"{size}x{size}",
+                "type": "image/png",
+                })
+
+    if icons:
+        homeassistant.components.frontend.MANIFEST_JSON["icons"] = icons
+
+    return True
+
+