@jupyter-lsp/jupyterlab-lsp/lib/virtual/console.js

Language Server Protocol integration for JupyterLab

import '../../style/console.css';
import { ISettingRegistry } from '@jupyterlab/settingregistry';
import { Signal } from '@lumino/signaling';
import { ILSPLogConsole, PLUGIN_ID } from '../tokens';
function toString(args) {
    return args
        .map(arg => {
        let textual;
        if (typeof arg === 'string') {
            return arg;
        }
        try {
            textual = JSON.stringify({ k: arg }).slice(5, -1);
        }
        catch {
            textual = '' + arg;
        }
        return '<span class="lsp-code">' + textual + '</span>';
    })
        .join(' ');
}
class FloatingConsole {
    constructor(scope = ['LSP'], element = null) {
        if (element) {
            this.element = element;
        }
        else {
            this.element = document.createElement('ul');
            this.element.className = 'lsp-floating-console';
            document.body.appendChild(this.element);
        }
    }
    bindThis() {
        return this;
    }
    dispose() {
        this.element.remove();
    }
    append(text, kind = 'log') {
        let entry = document.createElement('li');
        entry.innerHTML = '<span class="lsp-kind">' + kind + '</span>' + text;
        this.element.appendChild(entry);
        this.element.scrollTop = this.element.scrollHeight;
    }
    debug(...args) {
        this.append(toString(args), 'debug');
    }
    log(...args) {
        this.append(toString(args), 'log');
    }
    warn(...args) {
        this.append(toString(args), 'warn');
    }
    error(...args) {
        this.append(toString(args), 'error');
    }
}
/**
 * Used both as a console implementation, and as a dummy ILSPLogConsole
 */
export class BrowserConsole {
    constructor() {
        this.debug = window.console.debug.bind(window.console);
        this.log = window.console.log.bind(window.console);
        this.warn = window.console.warn.bind(window.console);
        this.error = window.console.error.bind(window.console);
    }
    dispose() {
        return;
    }
    scope(scope) {
        return this;
    }
    bindThis() {
        return window.console;
    }
}
class ConsoleWrapper {
    constructor(scope = ['LSP'], singleton) {
        this.breadcrumbs = scope;
        this._scope = this.breadcrumbs.join('.') + ':';
        this.singleton = singleton;
        this.singleton.changed.connect(this._rebindFunctions.bind(this));
        this._rebindFunctions();
    }
    /**
     * Re-binding directly to the underlying functions allows to get nice
     * location (file:line) of the actual call rather than of this wrapper
     * when using with the browser implementation.
     */
    _rebindFunctions() {
        const noOp = () => {
            // do nothing
        };
        const bindArg = this.implementation.bindThis();
        if (this.verbosity === 'debug') {
            this.debug = this.implementation.debug.bind(bindArg, this._scope);
        }
        else {
            this.debug = noOp;
        }
        if (this.verbosity === 'debug' || this.verbosity === 'log') {
            this.log = this.implementation.log.bind(bindArg, this._scope);
        }
        else {
            this.log = noOp;
        }
        if (this.verbosity === 'debug' ||
            this.verbosity === 'log' ||
            this.verbosity === 'warn') {
            this.warn = this.implementation.warn.bind(bindArg, this._scope);
        }
        else {
            this.warn = noOp;
        }
        this.error = this.implementation.error.bind(bindArg, this._scope);
    }
    get verbosity() {
        return this.singleton.verbosity;
    }
    get implementation() {
        return this.singleton.implementation;
    }
    debug(...args) {
        return this.implementation.debug(this._scope, ...args);
    }
    log(...args) {
        return this.implementation.log(this._scope, ...args);
    }
    warn(...args) {
        return this.implementation.warn(this._scope, ...args);
    }
    error(...args) {
        return this.implementation.error(this._scope, ...args);
    }
    scope(scope) {
        return new ConsoleWrapper([...this.breadcrumbs, scope], this.singleton);
    }
}
class ConsoleSingleton {
    constructor(settingRegistry) {
        // until loaded log everything, to browser console
        this.verbosity = 'debug';
        this.implementation = new BrowserConsole();
        this.changed = new Signal(this);
        settingRegistry
            .load(PLUGIN_ID + ':plugin')
            .then(settings => {
            this.updateSettings(settings);
            settings.changed.connect(() => {
                this.updateSettings(settings);
            });
        })
            .catch(console.warn);
    }
    updateSettings(settings) {
        const composite = settings.composite;
        const kind = composite.loggingConsole;
        if (this.implementation) {
            this.implementation.dispose();
        }
        if (kind === 'browser') {
            this.implementation = new BrowserConsole();
        }
        else if (kind === 'floating') {
            this.implementation = new FloatingConsole();
        }
        else {
            console.warn('Unknown console type', kind, 'falling back to browser console');
            this.implementation = new BrowserConsole();
        }
        this.verbosity = composite.loggingLevel;
        this.changed.emit();
    }
}
export const LOG_CONSOLE = {
    id: PLUGIN_ID + ':ILSPLogConsole',
    requires: [ISettingRegistry],
    activate: (app, settingRegistry) => {
        const singleton = new ConsoleSingleton(settingRegistry);
        return new ConsoleWrapper(['LSP'], singleton);
    },
    provides: ILSPLogConsole,
    autoStart: true
};
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