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"""
An example demonstrating a stand-alone windowed list.
Copyright (c) Jupyter Development Team.
Distributed under the terms of the Modified BSD License.
Example
-------
To run the example, see the instructions in the README to build it. Then
run ``python main.py``.
"""
import json
import os
from jupyter_server.base.handlers import JupyterHandler
from jupyter_server.extension.handler import ExtensionHandlerJinjaMixin, ExtensionHandlerMixin
from jupyter_server.utils import url_path_join as ujoin
from jupyterlab_server import LabServerApp
HERE = os.path.dirname(__file__)
with open(os.path.join(HERE, "package.json")) as fid:
version = json.load(fid)["version"]
def _jupyter_server_extension_points():
return [{"module": __name__, "app": ExampleApp}]
class ExampleHandler(ExtensionHandlerJinjaMixin, ExtensionHandlerMixin, JupyterHandler):
"""Handle requests between the main app page and notebook server."""
def get(self):
"""Get the main page for the application's interface."""
config_data = {
# Use camelCase here, since that's what the lab components expect
"appVersion": version,
"baseUrl": self.base_url,
"token": self.settings["token"],
"fullStaticUrl": ujoin(self.base_url, "static", self.name),
"frontendUrl": ujoin(self.base_url, "example/"),
}
return self.write(
self.render_template(
"index.html",
static=self.static_url,
base_url=self.base_url,
token=self.settings["token"],
page_config=config_data,
)
)
class ExampleApp(LabServerApp):
extension_url = "/example"
default_url = "/example"
app_url = "/example"
name = __name__
load_other_extensions = False
app_name = "JupyterLab Example Cell"
static_dir = os.path.join(HERE, "build")
templates_dir = os.path.join(HERE, "templates")
app_version = version
app_settings_dir = os.path.join(HERE, "build", "application_settings")
schemas_dir = os.path.join(HERE, "build", "schemas")
themes_dir = os.path.join(HERE, "build", "themes")
user_settings_dir = os.path.join(HERE, "build", "user_settings")
workspaces_dir = os.path.join(HERE, "build", "workspaces")
def initialize_handlers(self):
"""Add example handler to Lab Server's handler list."""
self.handlers.append(("/example", ExampleHandler))
if __name__ == "__main__":
ExampleApp.launch_instance()
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