In JupyterLab 3.x and CodeMirror5, I could do
cell.inputArea.editorWidget.editor.setOption('mode', 'python')
to set the codemirror mode for an individual cell.
How can I do the same in JupyterLab 4.x and CodeMirror 6? I see some code like
edit.setOption('lineNumbers', false);
but not anything like `setOption(‘mode’). Should I follow
github.com
private _onMimeTypeChanged(): void {
// TODO: should we provide a hook for when the mode is done being set?
this._languages
.getLanguage(this._model.mimeType)
.then(language => {
this._editor.dispatch({
effects: this._language.reconfigure(language?.support ?? [])
// this will trigger a side effect of switching language by updating
// private language compartment (implementation detail).
editor.model.mimeType = mode;
Indeed. If this is just a single boolean as in your example, one could argue that this should be a separate MIME type which could then register its own CodeMirror language support (I think there already should be a JSON mime type though).
But if you do have a valid use case for a more complex mode customization we should consider exposing the language compartment as previously mentioned (in which case lets move this discussion to GitHub).
