222 lines
8.8 KiB
TypeScript
222 lines
8.8 KiB
TypeScript
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/*---------------------------------------------------------------------------------------------
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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 { Node, Stylesheet } from 'EmmetNode';
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import { isValidLocationForEmmetAbbreviation, getSyntaxFromArgs } from './abbreviationActions';
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import { getEmmetHelper, getMappingForIncludedLanguages, parsePartialStylesheet, getEmmetConfiguration, getEmmetMode, isStyleSheet, parseDocument, getNode, allowedMimeTypesInScriptTag, trimQuotes, toLSTextDocument } from './util';
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import { getLanguageService, TokenType, Range as LSRange } from 'vscode-html-languageservice';
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export class DefaultCompletionItemProvider implements vscode.CompletionItemProvider {
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private lastCompletionType: string | undefined;
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private htmlLS = getLanguageService();
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public provideCompletionItems(document: vscode.TextDocument, position: vscode.Position, _: vscode.CancellationToken, context: vscode.CompletionContext): Thenable<vscode.CompletionList | undefined> | undefined {
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const completionResult = this.provideCompletionItemsInternal(document, position, context);
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if (!completionResult) {
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this.lastCompletionType = undefined;
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return;
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}
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return completionResult.then(completionList => {
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if (!completionList || !completionList.items.length) {
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this.lastCompletionType = undefined;
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return completionList;
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}
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const item = completionList.items[0];
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const expandedText = item.documentation ? item.documentation.toString() : '';
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if (expandedText.startsWith('<')) {
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this.lastCompletionType = 'html';
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} else if (expandedText.indexOf(':') > 0 && expandedText.endsWith(';')) {
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this.lastCompletionType = 'css';
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} else {
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this.lastCompletionType = undefined;
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}
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return completionList;
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});
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}
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private provideCompletionItemsInternal(document: vscode.TextDocument, position: vscode.Position, context: vscode.CompletionContext): Thenable<vscode.CompletionList | undefined> | undefined {
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const emmetConfig = vscode.workspace.getConfiguration('emmet');
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const excludedLanguages = emmetConfig['excludeLanguages'] ? emmetConfig['excludeLanguages'] : [];
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if (excludedLanguages.indexOf(document.languageId) > -1) {
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return;
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}
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const mappedLanguages = getMappingForIncludedLanguages();
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const isSyntaxMapped = mappedLanguages[document.languageId] ? true : false;
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let emmetMode = getEmmetMode((isSyntaxMapped ? mappedLanguages[document.languageId] : document.languageId), excludedLanguages);
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if (!emmetMode
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|| emmetConfig['showExpandedAbbreviation'] === 'never'
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|| ((isSyntaxMapped || emmetMode === 'jsx') && emmetConfig['showExpandedAbbreviation'] !== 'always')) {
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return;
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}
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let syntax = emmetMode;
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const helper = getEmmetHelper();
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let validateLocation = syntax === 'html' || syntax === 'jsx' || syntax === 'xml';
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let rootNode: Node | undefined = undefined;
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let currentNode: Node | null = null;
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const lsDoc = toLSTextDocument(document);
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position = document.validatePosition(position);
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if (document.languageId === 'html') {
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if (context.triggerKind === vscode.CompletionTriggerKind.TriggerForIncompleteCompletions) {
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switch (this.lastCompletionType) {
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case 'html':
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validateLocation = false;
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break;
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case 'css':
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validateLocation = false;
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syntax = 'css';
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break;
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default:
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break;
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}
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}
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if (validateLocation) {
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const parsedLsDoc = this.htmlLS.parseHTMLDocument(lsDoc);
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const positionOffset = document.offsetAt(position);
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const node = parsedLsDoc.findNodeAt(positionOffset);
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if (node.tag === 'script') {
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if (node.attributes && 'type' in node.attributes) {
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const rawTypeAttrValue = node.attributes['type'];
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if (rawTypeAttrValue) {
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const typeAttrValue = trimQuotes(rawTypeAttrValue);
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if (typeAttrValue === 'application/javascript' || typeAttrValue === 'text/javascript') {
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if (!getSyntaxFromArgs({ language: 'javascript' })) {
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return;
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} else {
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validateLocation = false;
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}
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}
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else if (allowedMimeTypesInScriptTag.indexOf(trimQuotes(rawTypeAttrValue)) > -1) {
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validateLocation = false;
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}
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}
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} else {
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return;
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}
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}
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else if (node.tag === 'style') {
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syntax = 'css';
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validateLocation = false;
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} else {
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if (node.attributes && node.attributes['style']) {
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const scanner = this.htmlLS.createScanner(document.getText(), node.start);
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let tokenType = scanner.scan();
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let prevAttr = undefined;
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let styleAttrValueRange: [number, number] | undefined = undefined;
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while (tokenType !== TokenType.EOS && (scanner.getTokenEnd() <= positionOffset)) {
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tokenType = scanner.scan();
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if (tokenType === TokenType.AttributeName) {
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prevAttr = scanner.getTokenText();
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}
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else if (tokenType === TokenType.AttributeValue && prevAttr === 'style') {
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styleAttrValueRange = [scanner.getTokenOffset(), scanner.getTokenEnd()];
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}
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}
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if (prevAttr === 'style' && styleAttrValueRange && positionOffset > styleAttrValueRange[0] && positionOffset < styleAttrValueRange[1]) {
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syntax = 'css';
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validateLocation = false;
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}
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}
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}
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}
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}
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const expandOptions = isStyleSheet(syntax) ?
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{ lookAhead: false, syntax: 'stylesheet' } :
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{ lookAhead: true, syntax: 'markup' };
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const extractAbbreviationResults = helper.extractAbbreviation(lsDoc, position, expandOptions);
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if (!extractAbbreviationResults || !helper.isAbbreviationValid(syntax, extractAbbreviationResults.abbreviation)) {
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return;
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}
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if (isStyleSheet(document.languageId) && context.triggerKind !== vscode.CompletionTriggerKind.TriggerForIncompleteCompletions) {
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validateLocation = true;
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let usePartialParsing = vscode.workspace.getConfiguration('emmet')['optimizeStylesheetParsing'] === true;
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rootNode = usePartialParsing && document.lineCount > 1000 ? parsePartialStylesheet(document, position) : <Stylesheet>parseDocument(document, false);
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if (!rootNode) {
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return;
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}
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currentNode = getNode(rootNode, position, true);
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}
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if (validateLocation && !isValidLocationForEmmetAbbreviation(document, rootNode, currentNode, syntax, position, toRange(extractAbbreviationResults.abbreviationRange))) {
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return;
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}
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let noiseCheckPromise: Thenable<any> = Promise.resolve();
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// Fix for https://github.com/microsoft/vscode/issues/32647
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// Check for document symbols in js/ts/jsx/tsx and avoid triggering emmet for abbreviations of the form symbolName.sometext
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// Presence of > or * or + in the abbreviation denotes valid abbreviation that should trigger emmet
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if (!isStyleSheet(syntax) && (document.languageId === 'javascript' || document.languageId === 'javascriptreact' || document.languageId === 'typescript' || document.languageId === 'typescriptreact')) {
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let abbreviation: string = extractAbbreviationResults.abbreviation;
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if (abbreviation.startsWith('this.')) {
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noiseCheckPromise = Promise.resolve(true);
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} else {
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noiseCheckPromise = vscode.commands.executeCommand<vscode.SymbolInformation[]>('vscode.executeDocumentSymbolProvider', document.uri).then((symbols: vscode.SymbolInformation[] | undefined) => {
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return symbols && symbols.find(x => abbreviation === x.name || (abbreviation.startsWith(x.name + '.') && !/>|\*|\+/.test(abbreviation)));
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});
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}
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}
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return noiseCheckPromise.then((noise): vscode.CompletionList | undefined => {
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if (noise) {
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return;
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}
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let result = helper.doComplete(toLSTextDocument(document), position, syntax, getEmmetConfiguration(syntax!));
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// https://github.com/microsoft/vscode/issues/86941
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if (result && result.items && result.items.length === 1) {
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if (result.items[0].label === 'widows: ;') {
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return undefined;
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}
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}
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let newItems: vscode.CompletionItem[] = [];
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if (result && result.items) {
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result.items.forEach((item: any) => {
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let newItem = new vscode.CompletionItem(item.label);
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newItem.documentation = item.documentation;
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newItem.detail = item.detail;
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newItem.insertText = new vscode.SnippetString(item.textEdit.newText);
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let oldrange = item.textEdit.range;
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newItem.range = new vscode.Range(oldrange.start.line, oldrange.start.character, oldrange.end.line, oldrange.end.character);
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newItem.filterText = item.filterText;
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newItem.sortText = item.sortText;
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if (emmetConfig['showSuggestionsAsSnippets'] === true) {
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newItem.kind = vscode.CompletionItemKind.Snippet;
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}
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newItems.push(newItem);
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});
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}
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return new vscode.CompletionList(newItems, true);
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});
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}
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}
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function toRange(lsRange: LSRange) {
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return new vscode.Range(lsRange.start.line, lsRange.start.character, lsRange.end.line, lsRange.end.character);
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}
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