Merge pull request #604 from banditburai/fix/add-default-title

Fix/add default title

Author: jph00

fasthtml/core.py

@@ -392,7 +392,8 @@ def _xt_cts(req, resp):
     hdr_tags = 'title','meta','link','style','base'
     heads,bdy = partition(resp, lambda o: getattr(o, 'tag', '') in hdr_tags)
     if resp and 'hx-request' not in req.headers and not any(getattr(o, 'tag', '')=='html' for o in resp):
-        resp = respond(req, heads or [Title('FastHTML page')], bdy)
+        title = [] if any(getattr(o, 'tag', '')=='title' for o in heads) else [Title(req.app.title)]
+        resp = respond(req, [*heads, *title], bdy)
     return _to_xml(req, resp, indent=fh_cfg.indent), http_hdrs, ts
 
 # %% ../nbs/api/00_core.ipynb
@@ -504,13 +505,14 @@ def def_hdrs(htmx=True, surreal=True):
 
 # %% ../nbs/api/00_core.ipynb
 class FastHTML(Starlette):
-    def __init__(self, debug=False, routes=None, middleware=None, exception_handlers=None,
+    def __init__(self, debug=False, routes=None, middleware=None, title: str = "FastHTML page", exception_handlers=None,
                  on_startup=None, on_shutdown=None, lifespan=None, hdrs=None, ftrs=None, exts=None,
                  before=None, after=None, surreal=True, htmx=True, default_hdrs=True, sess_cls=SessionMiddleware,
                  secret_key=None, session_cookie='session_', max_age=365*24*3600, sess_path='/',
                  same_site='lax', sess_https_only=False, sess_domain=None, key_fname='.sesskey',
                  body_wrap=noop_body, htmlkw=None, nb_hdrs=False, **bodykw):
         middleware,before,after = map(_list, (middleware,before,after))
+        self.title = title
         hdrs,ftrs,exts = map(listify, (hdrs,ftrs,exts))
         exts = {k:htmx_exts[k] for k in exts}
         htmlkw = htmlkw or {}

nbs/api/00_core.ipynb

@@ -1085,7 +1085,8 @@
     "    hdr_tags = 'title','meta','link','style','base'\n",
     "    heads,bdy = partition(resp, lambda o: getattr(o, 'tag', '') in hdr_tags)\n",
     "    if resp and 'hx-request' not in req.headers and not any(getattr(o, 'tag', '')=='html' for o in resp):\n",
-    "        resp = respond(req, heads or [Title('FastHTML page')], bdy)\n",
+    "        title = [] if any(getattr(o, 'tag', '')=='title' for o in heads) else [Title(req.app.title)]\n",
+    "        resp = respond(req, [*heads, *title], bdy)\n",
     "    return _to_xml(req, resp, indent=fh_cfg.indent), http_hdrs, ts"
    ]
   },
@@ -1229,7 +1230,7 @@
     {
      "data": {
       "text/plain": [
-       "'7eb16e0e-f1b9-4266-98fa-2d84c34f86fc'"
+       "'af1b5dfe-6a32-4348-b1de-692f979f20fb'"
       ]
      },
      "execution_count": null,
@@ -1351,13 +1352,14 @@
    "source": [
     "#| export\n",
     "class FastHTML(Starlette):\n",
-    "    def __init__(self, debug=False, routes=None, middleware=None, exception_handlers=None,\n",
+    "    def __init__(self, debug=False, routes=None, middleware=None, title: str = \"FastHTML page\", exception_handlers=None,\n",
     "                 on_startup=None, on_shutdown=None, lifespan=None, hdrs=None, ftrs=None, exts=None,\n",
     "                 before=None, after=None, surreal=True, htmx=True, default_hdrs=True, sess_cls=SessionMiddleware,\n",
     "                 secret_key=None, session_cookie='session_', max_age=365*24*3600, sess_path='/',\n",
     "                 same_site='lax', sess_https_only=False, sess_domain=None, key_fname='.sesskey',\n",
     "                 body_wrap=noop_body, htmlkw=None, nb_hdrs=False, **bodykw):\n",
     "        middleware,before,after = map(_list, (middleware,before,after))\n",
+    "        self.title = title\n",
     "        hdrs,ftrs,exts = map(listify, (hdrs,ftrs,exts))\n",
     "        exts = {k:htmx_exts[k] for k in exts}\n",
     "        htmlkw = htmlkw or {}\n",
@@ -1666,6 +1668,59 @@
     "app,cli,rt = get_cli(FastHTML(secret_key='soopersecret'))"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "421262a8",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[Route(path='/foo', name='foo', methods=['GET', 'HEAD'])]\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "'/foo?param=value'"
+      ]
+     },
+     "execution_count": null,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "app,cli,rt = get_cli(FastHTML(title=\"My Custom Title\"))\n",
+    "@app.get\n",
+    "def foo(): return Div(\"Hello World\")\n",
+    "\n",
+    "print(app.routes)\n",
+    "\n",
+    "response = cli.get('/foo')\n",
+    "assert '<title>My Custom Title</title>' in response.text\n",
+    "\n",
+    "foo.to(param='value')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "2ebd6270",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "app,cli,rt = get_cli(FastHTML())\n",
+    "\n",
+    "@rt('/xt2')\n",
+    "def get(): return H1('bar')\n",
+    "\n",
+    "txt = cli.get('/xt2').text\n",
+    "assert '<title>FastHTML page</title>' in txt and '<h1>bar</h1>' in txt and '<html>' in txt"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,