jupyterlab-event-order-demo

A JupyterLab extension that demonstrates the collision issue with Lab's global context menu and a mime renderer's context menu. After installation, run the below code in a Python kernel:

class EventOrderTest:
    def _repr_mimebundle_(self, **kwargs):
        return {
            "application/event_order.json": {
                "data": "Right click on this text and check console"
            }
        }

EventOrderTest()

From the browser's console output, it can be seen that the Widget's event handler is invoked before the react element's event handler. This becomes a problem when you want to show only the mime renderer's custom context menu(and not Lab's global context menu). This suggestion the docs is not sufficient to work around this issue for the reason stated above.

Prerequisites

• JupyterLab 1.0 or later

Installation

jupyter labextension install jupyterlab-event-order-demo

Development

For a development install (requires npm version 4 or later), do the following in the repository directory:

npm install
jupyter labextension link .

To rebuild the package and the JupyterLab app:

npm run build
jupyter lab build