@jupyter-lsp/jupyterlab-lsp/lib/adapters/fileeditor.js

Language Server Protocol integration for JupyterLab

import { FileEditorAdapter as UpstreamFileEditorAdapter, IEditorTracker } from '@jupyterlab/fileeditor';
import { ILSPCodeExtractorsManager, ILSPFeatureManager, ILSPDocumentConnectionManager } from '@jupyterlab/lsp';
import { ILSPCodeOverridesManager } from '../overrides/tokens';
import { VirtualDocument } from '../virtual/document';
export class FileEditorAdapter extends UpstreamFileEditorAdapter {
    constructor(editorWidget, options) {
        super(editorWidget, options);
        this.editorWidget = editorWidget;
        this.options = options;
        // Workaround to ensure `_editorAdded` is not called twice once upstream
        // adopts patch https://github.com/jupyterlab/jupyterlab/pull/15873
        let emitted = false;
        const emit = this._editorAdded.emit;
        this._editorAdded.emit = (args) => {
            if (emitted) {
                return;
            }
            emitted = true;
            emit.call(this._editorAdded, args);
        };
    }
    async initOnceReady() {
        await super.initOnceReady();
        // Workaround for
        // https://github.com/jupyterlab/jupyterlab/issues/15868
        // remove once fixed upstream
        this._editorAdded.emit({
            editor: this.activeEditor
        });
    }
    /**
     * Generate the virtual document associated with the document.
     */
    createVirtualDocument() {
        return new VirtualDocument({
            language: this.language,
            foreignCodeExtractors: this.options.foreignCodeExtractorsManager,
            path: this.documentPath,
            fileExtension: this.languageFileExtension,
            // notebooks are continuous, each cell is dependent on the previous one
            standalone: true,
            // notebooks are not supported by LSP servers
            hasLspSupportedFile: true,
            overridesRegistry: this.options.codeOverridesManager.registry
        });
    }
}
/**
 * Activate the language server for file editor.
 */
function activateFileEditorLanguageServer(app, editors, connectionManager, featureManager, extractorManager, codeOverridesManager) {
    editors.widgetAdded.connect(async (_, editor) => {
        const adapter = new FileEditorAdapter(editor, {
            connectionManager,
            featureManager,
            foreignCodeExtractorsManager: extractorManager,
            docRegistry: app.docRegistry,
            codeOverridesManager
        });
        connectionManager.registerAdapter(editor.context.path, adapter);
    });
}
export const FILEEDITOR_ADAPTER_PLUGIN = {
    id: '@jupyter-lsp/fileeditor-adapter',
    description: 'Adds language server capability to the notebooks.',
    requires: [
        IEditorTracker,
        ILSPDocumentConnectionManager,
        ILSPFeatureManager,
        ILSPCodeExtractorsManager,
        ILSPCodeOverridesManager
    ],
    activate: activateFileEditorLanguageServer,
    autoStart: true
};
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