72 lines
2.6 KiB
TypeScript
72 lines
2.6 KiB
TypeScript
/**
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* context_mapping.ts
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*
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* Copyright (C) 2020,2021 CismonX <admin@cismon.net>
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*
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* This file is part of vscode-texinfo.
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*
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* vscode-texinfo is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option)
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* any later version.
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*
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* vscode-texinfo is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* vscode-texinfo. If not, see <https://www.gnu.org/licenses/>.
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*/
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import * as vscode from 'vscode';
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import DocumentContext from './contexts/document';
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/**
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* Manage mappings between Texinfo documents and corresponding contexts.
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*/
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export default class ContextMapping implements vscode.Disposable {
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private static singleton?: ContextMapping;
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static get instance() {
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return ContextMapping.singleton ??= new ContextMapping();
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}
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static getDocumentContext(document: vscode.TextDocument) {
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let documentContext = ContextMapping.instance.value.get(document);
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if (documentContext === undefined) {
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ContextMapping.instance.value.set(document, documentContext = new DocumentContext(document));
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}
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return documentContext;
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}
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static onDocumentUpdate(event: vscode.TextDocumentChangeEvent) {
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const documentContext = ContextMapping.getDocumentContextIfExist(event.document);
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if (documentContext?.foldingRange.update(event.contentChanges)) {
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documentContext.documentSymbol.clear();
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}
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}
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static onDocumentSave(document: vscode.TextDocument) {
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const documentContext = ContextMapping.getDocumentContextIfExist(document);
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documentContext?.getPreview()?.updateWebview();
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}
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static onDocumentClose(document: vscode.TextDocument) {
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ContextMapping.instance.value.get(document)?.getPreview()?.close();
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ContextMapping.instance.value.delete(document);
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}
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private static getDocumentContextIfExist(document: vscode.TextDocument) {
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return document.languageId === 'texinfo' ? ContextMapping.getDocumentContext(document) : undefined;
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}
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private readonly value = new Map<vscode.TextDocument, DocumentContext>();
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dispose() {
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this.value.forEach(documentContext => documentContext.getPreview()?.close());
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ContextMapping.singleton = undefined;
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}
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}
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