673 lines
21 KiB
TypeScript
673 lines
21 KiB
TypeScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import * as vscode from 'vscode';
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import parse from '@emmetio/html-matcher';
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import parseStylesheet from '@emmetio/css-parser';
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import { Node as FlatNode, HtmlNode as HtmlFlatNode, Property as FlatProperty, Rule as FlatRule, CssToken as FlatCssToken, Stylesheet as FlatStylesheet } from 'EmmetFlatNode';
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import { DocumentStreamReader } from './bufferStream';
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import * as EmmetHelper from 'vscode-emmet-helper';
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import { TextDocument as LSTextDocument } from 'vscode-languageserver-textdocument';
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import { getRootNode } from './parseDocument';
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let _emmetHelper: typeof EmmetHelper;
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let _currentExtensionsPath: string | undefined = undefined;
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let _homeDir: vscode.Uri | undefined;
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export function setHomeDir(homeDir: vscode.Uri) {
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_homeDir = homeDir;
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}
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export function getEmmetHelper() {
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// Lazy load vscode-emmet-helper instead of importing it
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// directly to reduce the start-up time of the extension
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if (!_emmetHelper) {
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_emmetHelper = require('vscode-emmet-helper');
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}
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return _emmetHelper;
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}
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/**
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* Update Emmet Helper to use user snippets from the extensionsPath setting
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*/
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export function updateEmmetExtensionsPath(forceRefresh: boolean = false) {
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const helper = getEmmetHelper();
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let extensionsPath = vscode.workspace.getConfiguration('emmet')['extensionsPath'];
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if (forceRefresh || _currentExtensionsPath !== extensionsPath) {
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_currentExtensionsPath = extensionsPath;
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if (!vscode.workspace.workspaceFolders || vscode.workspace.workspaceFolders.length === 0) {
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return;
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} else {
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const rootPath = vscode.workspace.workspaceFolders[0].uri;
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const fileSystem = vscode.workspace.fs;
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helper.updateExtensionsPath(extensionsPath, fileSystem, rootPath, _homeDir).catch(err => vscode.window.showErrorMessage(err.message));
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}
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}
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}
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/**
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* Mapping between languages that support Emmet and completion trigger characters
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*/
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export const LANGUAGE_MODES: { [id: string]: string[] } = {
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'html': ['!', '.', '}', ':', '*', '$', ']', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'jade': ['!', '.', '}', ':', '*', '$', ']', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'slim': ['!', '.', '}', ':', '*', '$', ']', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'haml': ['!', '.', '}', ':', '*', '$', ']', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'xml': ['.', '}', '*', '$', ']', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'xsl': ['!', '.', '}', '*', '$', ']', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'css': [':', '!', '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'scss': [':', '!', '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'sass': [':', '!', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'less': [':', '!', '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'stylus': [':', '!', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'javascriptreact': ['!', '.', '}', '*', '$', ']', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
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'typescriptreact': ['!', '.', '}', '*', '$', ']', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
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};
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export function isStyleSheet(syntax: string): boolean {
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let stylesheetSyntaxes = ['css', 'scss', 'sass', 'less', 'stylus'];
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return stylesheetSyntaxes.includes(syntax);
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}
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export function validate(allowStylesheet: boolean = true): boolean {
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let editor = vscode.window.activeTextEditor;
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if (!editor) {
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vscode.window.showInformationMessage('No editor is active');
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return false;
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}
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if (!allowStylesheet && isStyleSheet(editor.document.languageId)) {
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return false;
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}
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return true;
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}
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export function getMappingForIncludedLanguages(): any {
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// Explicitly map languages that have built-in grammar in VS Code to their parent language
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// to get emmet completion support
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// For other languages, users will have to use `emmet.includeLanguages` or
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// language specific extensions can provide emmet completion support
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const MAPPED_MODES: Object = {
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'handlebars': 'html',
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'php': 'html'
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};
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const finalMappedModes = Object.create(null);
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let includeLanguagesConfig = vscode.workspace.getConfiguration('emmet')['includeLanguages'];
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let includeLanguages = Object.assign({}, MAPPED_MODES, includeLanguagesConfig ? includeLanguagesConfig : {});
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Object.keys(includeLanguages).forEach(syntax => {
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if (typeof includeLanguages[syntax] === 'string' && LANGUAGE_MODES[includeLanguages[syntax]]) {
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finalMappedModes[syntax] = includeLanguages[syntax];
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}
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});
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return finalMappedModes;
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}
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/**
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* Get the corresponding emmet mode for given vscode language mode
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* E.g.: jsx for typescriptreact/javascriptreact or pug for jade
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* If the language is not supported by emmet or has been excluded via `excludeLanguages` setting,
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* then nothing is returned
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*
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* @param excludedLanguages Array of language ids that user has chosen to exclude for emmet
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*/
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export function getEmmetMode(language: string, excludedLanguages: string[]): string | undefined {
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if (!language || excludedLanguages.indexOf(language) > -1) {
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return;
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}
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if (/\b(typescriptreact|javascriptreact|jsx-tags)\b/.test(language)) { // treat tsx like jsx
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return 'jsx';
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}
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if (language === 'sass-indented') { // map sass-indented to sass
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return 'sass';
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}
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if (language === 'jade') {
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return 'pug';
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}
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const syntaxes = getSyntaxes();
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if (syntaxes.markup.includes(language) || syntaxes.stylesheet.includes(language)) {
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return language;
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}
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return;
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}
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const closeBrace = 125;
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const openBrace = 123;
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const slash = 47;
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const star = 42;
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/**
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* Traverse the given document backward & forward from given position
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* to find a complete ruleset, then parse just that to return a Stylesheet
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* @param document vscode.TextDocument
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* @param position vscode.Position
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*/
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export function parsePartialStylesheet(document: vscode.TextDocument, position: vscode.Position): FlatStylesheet | undefined {
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const isCSS = document.languageId === 'css';
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const positionOffset = document.offsetAt(position);
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let startOffset = 0;
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let endOffset = document.getText().length;
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const limitCharacter = positionOffset - 5000;
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const limitOffset = limitCharacter > 0 ? limitCharacter : startOffset;
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const stream = new DocumentStreamReader(document, positionOffset);
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function findOpeningCommentBeforePosition(pos: number): number | undefined {
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const text = document.getText().substring(0, pos);
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let offset = text.lastIndexOf('/*');
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if (offset === -1) {
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return;
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}
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return offset;
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}
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function findClosingCommentAfterPosition(pos: number): number | undefined {
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const text = document.getText().substring(pos);
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let offset = text.indexOf('*/');
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if (offset === -1) {
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return;
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}
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offset += 2 + pos;
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return offset;
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}
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function consumeLineCommentBackwards() {
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const posLineNumber = document.positionAt(stream.pos).line;
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if (!isCSS && currentLine !== posLineNumber) {
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currentLine = posLineNumber;
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const startLineComment = document.lineAt(currentLine).text.indexOf('//');
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if (startLineComment > -1) {
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stream.pos = document.offsetAt(new vscode.Position(currentLine, startLineComment));
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}
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}
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}
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function consumeBlockCommentBackwards() {
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if (stream.peek() === slash) {
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if (stream.backUp(1) === star) {
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stream.pos = findOpeningCommentBeforePosition(stream.pos) ?? startOffset;
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} else {
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stream.next();
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}
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}
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}
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function consumeCommentForwards() {
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if (stream.eat(slash)) {
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if (stream.eat(slash) && !isCSS) {
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const posLineNumber = document.positionAt(stream.pos).line;
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stream.pos = document.offsetAt(new vscode.Position(posLineNumber + 1, 0));
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} else if (stream.eat(star)) {
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stream.pos = findClosingCommentAfterPosition(stream.pos) ?? endOffset;
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}
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}
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}
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// Go forward until we find a closing brace.
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while (!stream.eof() && !stream.eat(closeBrace)) {
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if (stream.peek() === slash) {
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consumeCommentForwards();
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} else {
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stream.next();
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}
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}
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if (!stream.eof()) {
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endOffset = stream.pos;
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}
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stream.pos = positionOffset;
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let openBracesToFind = 1;
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let currentLine = position.line;
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let exit = false;
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// Go back until we found an opening brace. If we find a closing one, consume its pair and continue.
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while (!exit && openBracesToFind > 0 && !stream.sof()) {
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consumeLineCommentBackwards();
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switch (stream.backUp(1)) {
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case openBrace:
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openBracesToFind--;
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break;
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case closeBrace:
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if (isCSS) {
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stream.next();
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startOffset = stream.pos;
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exit = true;
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} else {
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openBracesToFind++;
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}
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break;
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case slash:
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consumeBlockCommentBackwards();
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break;
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default:
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break;
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}
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if (position.line - document.positionAt(stream.pos).line > 100
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|| stream.pos <= limitOffset) {
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exit = true;
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}
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}
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// We are at an opening brace. We need to include its selector.
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currentLine = document.positionAt(stream.pos).line;
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openBracesToFind = 0;
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let foundSelector = false;
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while (!exit && !stream.sof() && !foundSelector && openBracesToFind >= 0) {
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consumeLineCommentBackwards();
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const ch = stream.backUp(1);
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if (/\s/.test(String.fromCharCode(ch))) {
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continue;
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}
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switch (ch) {
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case slash:
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consumeBlockCommentBackwards();
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break;
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case closeBrace:
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openBracesToFind++;
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break;
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case openBrace:
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openBracesToFind--;
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break;
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default:
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if (!openBracesToFind) {
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foundSelector = true;
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}
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break;
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}
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if (!stream.sof() && foundSelector) {
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startOffset = stream.pos;
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}
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}
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try {
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const buffer = ' '.repeat(startOffset) + document.getText().substring(startOffset, endOffset);
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return parseStylesheet(buffer);
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} catch (e) {
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return;
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}
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}
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/**
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* Returns node corresponding to given position in the given root node
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*/
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export function getFlatNode(root: FlatNode | undefined, offset: number, includeNodeBoundary: boolean): FlatNode | undefined {
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if (!root) {
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return;
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}
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function getFlatNodeChild(child: FlatNode | undefined): FlatNode | undefined {
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if (!child) {
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return;
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}
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const nodeStart = child.start;
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const nodeEnd = child.end;
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if ((nodeStart < offset && nodeEnd > offset)
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|| (includeNodeBoundary && nodeStart <= offset && nodeEnd >= offset)) {
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return getFlatNodeChildren(child.children) ?? child;
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}
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else if ('close' in <any>child) {
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// We have an HTML node in this case.
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// In case this node is an invalid unpaired HTML node,
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// we still want to search its children
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const htmlChild = <HtmlFlatNode>child;
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if (htmlChild.open && !htmlChild.close) {
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return getFlatNodeChildren(htmlChild.children);
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}
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}
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return;
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}
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function getFlatNodeChildren(children: FlatNode[]): FlatNode | undefined {
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for (let i = 0; i < children.length; i++) {
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const foundChild = getFlatNodeChild(children[i]);
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if (foundChild) {
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return foundChild;
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}
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}
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return;
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}
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return getFlatNodeChildren(root.children);
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}
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export const allowedMimeTypesInScriptTag = ['text/html', 'text/plain', 'text/x-template', 'text/template', 'text/ng-template'];
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/**
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* Finds the HTML node within an HTML document at a given position
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* If position is inside a script tag of type template, then it will be parsed to find the inner HTML node as well
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*/
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export function getHtmlFlatNode(documentText: string, root: FlatNode | undefined, offset: number, includeNodeBoundary: boolean): HtmlFlatNode | undefined {
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const currentNode: HtmlFlatNode | undefined = <HtmlFlatNode | undefined>getFlatNode(root, offset, includeNodeBoundary);
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if (!currentNode) { return; }
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const isTemplateScript = currentNode.name === 'script' &&
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(currentNode.attributes &&
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currentNode.attributes.some(x => x.name.toString() === 'type'
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&& allowedMimeTypesInScriptTag.includes(x.value.toString())));
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if (isTemplateScript
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&& currentNode.open
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&& offset > currentNode.open.end
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&& (!currentNode.close || offset < currentNode.close.start)) {
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// blank out the rest of the document and search for the node within
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const beforePadding = ' '.repeat(currentNode.open.end);
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const endToUse = currentNode.close ? currentNode.close.start : currentNode.end;
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const scriptBodyText = beforePadding + documentText.substring(currentNode.open.end, endToUse);
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const innerRoot: HtmlFlatNode = parse(scriptBodyText);
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const scriptBodyNode = getHtmlFlatNode(scriptBodyText, innerRoot, offset, includeNodeBoundary);
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if (scriptBodyNode) {
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scriptBodyNode.parent = currentNode;
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currentNode.children.push(scriptBodyNode);
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return scriptBodyNode;
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}
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}
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return currentNode;
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}
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export function isOffsetInsideOpenOrCloseTag(node: FlatNode, offset: number): boolean {
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const htmlNode = node as HtmlFlatNode;
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if ((htmlNode.open && offset > htmlNode.open.start && offset < htmlNode.open.end)
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|| (htmlNode.close && offset > htmlNode.close.start && offset < htmlNode.close.end)) {
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return true;
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}
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return false;
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}
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export function offsetRangeToSelection(document: vscode.TextDocument, start: number, end: number): vscode.Selection {
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const startPos = document.positionAt(start);
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const endPos = document.positionAt(end);
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return new vscode.Selection(startPos, endPos);
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}
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export function offsetRangeToVsRange(document: vscode.TextDocument, start: number, end: number): vscode.Range {
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const startPos = document.positionAt(start);
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const endPos = document.positionAt(end);
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return new vscode.Range(startPos, endPos);
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}
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/**
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* Returns the deepest non comment node under given node
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*/
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export function getDeepestFlatNode(node: FlatNode | undefined): FlatNode | undefined {
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if (!node || !node.children || node.children.length === 0 || !node.children.find(x => x.type !== 'comment')) {
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return node;
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}
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for (let i = node.children.length - 1; i >= 0; i--) {
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if (node.children[i].type !== 'comment') {
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return getDeepestFlatNode(node.children[i]);
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}
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}
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return undefined;
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}
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export function findNextWord(propertyValue: string, pos: number): [number | undefined, number | undefined] {
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let foundSpace = pos === -1;
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let foundStart = false;
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let foundEnd = false;
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let newSelectionStart;
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let newSelectionEnd;
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while (pos < propertyValue.length - 1) {
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pos++;
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if (!foundSpace) {
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if (propertyValue[pos] === ' ') {
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foundSpace = true;
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}
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continue;
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}
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if (foundSpace && !foundStart && propertyValue[pos] === ' ') {
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continue;
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}
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if (!foundStart) {
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newSelectionStart = pos;
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foundStart = true;
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continue;
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}
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if (propertyValue[pos] === ' ') {
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newSelectionEnd = pos;
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foundEnd = true;
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break;
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}
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}
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if (foundStart && !foundEnd) {
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newSelectionEnd = propertyValue.length;
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}
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return [newSelectionStart, newSelectionEnd];
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}
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export function findPrevWord(propertyValue: string, pos: number): [number | undefined, number | undefined] {
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let foundSpace = pos === propertyValue.length;
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let foundStart = false;
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let foundEnd = false;
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let newSelectionStart;
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let newSelectionEnd;
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while (pos > -1) {
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pos--;
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if (!foundSpace) {
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if (propertyValue[pos] === ' ') {
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foundSpace = true;
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}
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continue;
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}
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if (foundSpace && !foundEnd && propertyValue[pos] === ' ') {
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continue;
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}
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if (!foundEnd) {
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newSelectionEnd = pos + 1;
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foundEnd = true;
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continue;
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}
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if (propertyValue[pos] === ' ') {
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newSelectionStart = pos + 1;
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foundStart = true;
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break;
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}
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}
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if (foundEnd && !foundStart) {
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newSelectionStart = 0;
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}
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return [newSelectionStart, newSelectionEnd];
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}
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export function getNodesInBetween(node1: FlatNode, node2: FlatNode): FlatNode[] {
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// Same node
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if (sameNodes(node1, node2)) {
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return [node1];
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}
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// Not siblings
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if (!sameNodes(node1.parent, node2.parent)) {
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// node2 is ancestor of node1
|
|
if (node2.start < node1.start) {
|
|
return [node2];
|
|
}
|
|
|
|
// node1 is ancestor of node2
|
|
if (node2.start < node1.end) {
|
|
return [node1];
|
|
}
|
|
|
|
// Get the highest ancestor of node1 that should be commented
|
|
while (node1.parent && node1.parent.end < node2.start) {
|
|
node1 = node1.parent;
|
|
}
|
|
|
|
// Get the highest ancestor of node2 that should be commented
|
|
while (node2.parent && node2.parent.start > node1.start) {
|
|
node2 = node2.parent;
|
|
}
|
|
}
|
|
|
|
const siblings: FlatNode[] = [];
|
|
let currentNode: FlatNode | undefined = node1;
|
|
const position = node2.end;
|
|
while (currentNode && position > currentNode.start) {
|
|
siblings.push(currentNode);
|
|
currentNode = currentNode.nextSibling;
|
|
}
|
|
return siblings;
|
|
}
|
|
|
|
export function sameNodes(node1: FlatNode | undefined, node2: FlatNode | undefined): boolean {
|
|
// return true if they're both undefined
|
|
if (!node1 && !node2) {
|
|
return true;
|
|
}
|
|
// return false if only one of them is undefined
|
|
if (!node1 || !node2) {
|
|
return false;
|
|
}
|
|
return node1.start === node2.start && node1.end === node2.end;
|
|
}
|
|
|
|
export function getEmmetConfiguration(syntax: string) {
|
|
const emmetConfig = vscode.workspace.getConfiguration('emmet');
|
|
const syntaxProfiles = Object.assign({}, emmetConfig['syntaxProfiles'] || {});
|
|
const preferences = Object.assign({}, emmetConfig['preferences'] || {});
|
|
// jsx, xml and xsl syntaxes need to have self closing tags unless otherwise configured by user
|
|
if (syntax === 'jsx' || syntax === 'xml' || syntax === 'xsl') {
|
|
syntaxProfiles[syntax] = syntaxProfiles[syntax] || {};
|
|
if (typeof syntaxProfiles[syntax] === 'object'
|
|
&& !syntaxProfiles[syntax].hasOwnProperty('self_closing_tag') // Old Emmet format
|
|
&& !syntaxProfiles[syntax].hasOwnProperty('selfClosingStyle') // Emmet 2.0 format
|
|
) {
|
|
syntaxProfiles[syntax] = {
|
|
...syntaxProfiles[syntax],
|
|
selfClosingStyle: 'xml'
|
|
};
|
|
}
|
|
}
|
|
|
|
return {
|
|
preferences,
|
|
showExpandedAbbreviation: emmetConfig['showExpandedAbbreviation'],
|
|
showAbbreviationSuggestions: emmetConfig['showAbbreviationSuggestions'],
|
|
syntaxProfiles,
|
|
variables: emmetConfig['variables'],
|
|
excludeLanguages: emmetConfig['excludeLanguages'],
|
|
showSuggestionsAsSnippets: emmetConfig['showSuggestionsAsSnippets']
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Itereates by each child, as well as nested child's children, in their order
|
|
* and invokes `fn` for each. If `fn` function returns `false`, iteration stops
|
|
*/
|
|
export function iterateCSSToken(token: FlatCssToken, fn: (x: any) => any): boolean {
|
|
for (let i = 0, il = token.size; i < il; i++) {
|
|
if (fn(token.item(i)) === false || iterateCSSToken(token.item(i), fn) === false) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Returns `name` CSS property from given `rule`
|
|
*/
|
|
export function getCssPropertyFromRule(rule: FlatRule, name: string): FlatProperty | undefined {
|
|
return rule.children.find(node => node.type === 'property' && node.name === name) as FlatProperty;
|
|
}
|
|
|
|
/**
|
|
* Returns css property under caret in given editor or `null` if such node cannot
|
|
* be found
|
|
*/
|
|
export function getCssPropertyFromDocument(editor: vscode.TextEditor, position: vscode.Position): FlatProperty | null {
|
|
const document = editor.document;
|
|
const rootNode = getRootNode(document, true);
|
|
const offset = document.offsetAt(position);
|
|
const node = getFlatNode(rootNode, offset, true);
|
|
|
|
if (isStyleSheet(editor.document.languageId)) {
|
|
return node && node.type === 'property' ? <FlatProperty>node : null;
|
|
}
|
|
|
|
const htmlNode = <HtmlFlatNode>node;
|
|
if (htmlNode
|
|
&& htmlNode.name === 'style'
|
|
&& htmlNode.open && htmlNode.close
|
|
&& htmlNode.open.end < offset
|
|
&& htmlNode.close.start > offset) {
|
|
const buffer = ' '.repeat(htmlNode.start) +
|
|
document.getText().substring(htmlNode.start, htmlNode.end);
|
|
const innerRootNode = parseStylesheet(buffer);
|
|
const innerNode = getFlatNode(innerRootNode, offset, true);
|
|
return (innerNode && innerNode.type === 'property') ? <FlatProperty>innerNode : null;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
|
|
export function getEmbeddedCssNodeIfAny(document: vscode.TextDocument, currentNode: FlatNode | undefined, position: vscode.Position): FlatNode | undefined {
|
|
if (!currentNode) {
|
|
return;
|
|
}
|
|
const currentHtmlNode = <HtmlFlatNode>currentNode;
|
|
if (currentHtmlNode && currentHtmlNode.open && currentHtmlNode.close) {
|
|
const offset = document.offsetAt(position);
|
|
if (currentHtmlNode.open.end <= offset && offset <= currentHtmlNode.close.start) {
|
|
if (currentHtmlNode.name === 'style'
|
|
&& currentHtmlNode.open.end < offset
|
|
&& currentHtmlNode.close.start > offset) {
|
|
const buffer = ' '.repeat(currentHtmlNode.open.end) + document.getText().substring(currentHtmlNode.open.end, currentHtmlNode.close.start);
|
|
return parseStylesheet(buffer);
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
export function isStyleAttribute(currentNode: FlatNode | undefined, offset: number): boolean {
|
|
if (!currentNode) {
|
|
return false;
|
|
}
|
|
const currentHtmlNode = <HtmlFlatNode>currentNode;
|
|
const index = (currentHtmlNode.attributes || []).findIndex(x => x.name.toString() === 'style');
|
|
if (index === -1) {
|
|
return false;
|
|
}
|
|
const styleAttribute = currentHtmlNode.attributes[index];
|
|
return offset >= styleAttribute.value.start && offset <= styleAttribute.value.end;
|
|
}
|
|
|
|
export function isNumber(obj: any): obj is number {
|
|
return typeof obj === 'number';
|
|
}
|
|
|
|
export function toLSTextDocument(doc: vscode.TextDocument): LSTextDocument {
|
|
return LSTextDocument.create(doc.uri.toString(), doc.languageId, doc.version, doc.getText());
|
|
}
|
|
|
|
export function getPathBaseName(path: string): string {
|
|
const pathAfterSlashSplit = path.split('/').pop();
|
|
const pathAfterBackslashSplit = pathAfterSlashSplit ? pathAfterSlashSplit.split('\\').pop() : '';
|
|
return pathAfterBackslashSplit ?? '';
|
|
}
|
|
|
|
export function getSyntaxes() {
|
|
/**
|
|
* List of all known syntaxes, from emmetio/emmet
|
|
*/
|
|
return {
|
|
markup: ['html', 'xml', 'xsl', 'jsx', 'js', 'pug', 'slim', 'haml'],
|
|
stylesheet: ['css', 'sass', 'scss', 'less', 'sss', 'stylus']
|
|
};
|
|
}
|