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index.ts
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index.ts
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import {
JupyterFrontEnd,
JupyterFrontEndPlugin
} from '@jupyterlab/application';
import { INotebookTracker } from '@jupyterlab/notebook';
import { IbisVegaRenderer, MIME_TYPE } from './renderer';
/**
* A plugin ID for the extension.
*/
const PLUGIN_ID = 'ibis-vega-transform:plugin';
/**
* The JupyterLab plugin metadata.
*/
const plugin: JupyterFrontEndPlugin<void> = {
activate,
id: PLUGIN_ID,
requires: [INotebookTracker],
autoStart: true
};
/**
* Activate the plugin. This adds a new renderer type to all notebook
* rendermime registries that knows how to lazily fetch ibis transforms
* from the server.
*/
function activate(_: JupyterFrontEnd, notebooks: INotebookTracker) {
notebooks.widgetAdded.connect((_, { context, content }) => {
content.rendermime.addFactory(
{
safe: true,
defaultRank: 50,
mimeTypes: [MIME_TYPE],
createRenderer: () => new IbisVegaRenderer(context)
},
0
);
});
}
export default plugin;