90 lines
3.9 KiB
JavaScript
90 lines
3.9 KiB
JavaScript
/******************************************************************************
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* Copyright 2022 TypeFox GmbH
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* This program and the accompanying materials are made available under the
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* terms of the MIT License, which is available in the project root.
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******************************************************************************/
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import { Emitter } from '../utils/event.js';
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import { Deferred } from '../utils/promise-utils.js';
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/**
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* Base configuration provider for building up other configuration providers
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*/
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export class DefaultConfigurationProvider {
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constructor(services) {
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this._ready = new Deferred();
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this.onConfigurationSectionUpdateEmitter = new Emitter();
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this.settings = {};
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this.workspaceConfig = false;
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this.serviceRegistry = services.ServiceRegistry;
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}
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get ready() {
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return this._ready.promise;
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}
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initialize(params) {
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this.workspaceConfig = params.capabilities.workspace?.configuration ?? false;
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}
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async initialized(params) {
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if (this.workspaceConfig) {
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if (params.register) {
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// params.register(...) is a function to be provided by the calling language server for the sake of
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// decoupling this implementation from the concrete LSP implementations, specifically the LSP Connection
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const languages = this.serviceRegistry.all;
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params.register({
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// Listen to configuration changes for all languages
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section: languages.map(lang => this.toSectionName(lang.LanguageMetaData.languageId))
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});
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}
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if (params.fetchConfiguration) {
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// params.fetchConfiguration(...) is a function to be provided by the calling language server for the sake of
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// decoupling this implementation from the concrete LSP implementations, specifically the LSP Connection
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const configToUpdate = this.serviceRegistry.all.map(lang => ({
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// Fetch the configuration changes for all languages
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section: this.toSectionName(lang.LanguageMetaData.languageId)
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}));
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// get workspace configurations (default scope URI)
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const configs = await params.fetchConfiguration(configToUpdate);
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configToUpdate.forEach((conf, idx) => {
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this.updateSectionConfiguration(conf.section, configs[idx]);
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});
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}
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}
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this._ready.resolve();
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}
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/**
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* Updates the cached configurations using the `change` notification parameters.
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*
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* @param change The parameters of a change configuration notification.
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* `settings` property of the change object could be expressed as `Record<string, Record<string, any>>`
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*/
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updateConfiguration(change) {
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if (typeof change.settings !== 'object' || change.settings === null) {
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return;
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}
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Object.entries(change.settings).forEach(([section, configuration]) => {
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this.updateSectionConfiguration(section, configuration);
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this.onConfigurationSectionUpdateEmitter.fire({ section, configuration });
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});
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}
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updateSectionConfiguration(section, configuration) {
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this.settings[section] = configuration;
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}
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/**
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* Returns a configuration value stored for the given language.
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*
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* @param language The language id
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* @param configuration Configuration name
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*/
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async getConfiguration(language, configuration) {
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await this.ready;
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const sectionName = this.toSectionName(language);
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if (this.settings[sectionName]) {
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return this.settings[sectionName][configuration];
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}
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}
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toSectionName(languageId) {
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return `${languageId}`;
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}
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get onConfigurationSectionUpdate() {
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return this.onConfigurationSectionUpdateEmitter.event;
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}
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}
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//# sourceMappingURL=configuration.js.map
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