homepage_actions() plugin hook, closes #2298

tests/fixtures.py

@@ -42,6 +42,7 @@ EXPECTED_PLUGINS = [
             "extra_js_urls",
             "extra_template_vars",
             "forbidden",
+            "homepage_actions",
             "menu_links",
             "permission_allowed",
             "prepare_connection",

tests/plugins/my_plugin.py

@@ -425,6 +425,18 @@ def database_actions(datasette, database, actor, request):
         ]
 
 
+@hookimpl
+def homepage_actions(datasette, actor, request):
+    if actor:
+        label = f"Custom homepage for: {actor['id']}"
+        return [
+            {
+                "href": datasette.urls.path("/-/custom-homepage"),
+                "label": label,
+            }
+        ]
+
+
 @hookimpl
 def skip_csrf(scope):
     return scope["path"] == "/skip-csrf"

tests/test_plugins.py

@@ -995,6 +995,25 @@ async def test_hook_database_actions(ds_client):
     ]
 
 
+@pytest.mark.asyncio
+async def test_hook_homepage_actions(ds_client):
+    response = await ds_client.get("/")
+    # No button for anonymous users
+    assert "<span>Homepage actions</span>" not in response.text
+    # Signed in user gets an action
+    response2 = await ds_client.get(
+        "/", cookies={"ds_actor": ds_client.actor_cookie({"id": "troy"})}
+    )
+    assert "<span>Homepage actions</span>" in response2.text
+    assert get_actions_links(response2.text) == [
+        {
+            "label": "Custom homepage for: troy",
+            "href": "/-/custom-homepage",
+            "description": None,
+        },
+    ]
+
+
 def test_hook_skip_csrf(app_client):
     cookie = app_client.actor_cookie({"id": "test"})
     csrf_response = app_client.post(