75 lines
3.3 KiB
TypeScript
75 lines
3.3 KiB
TypeScript
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/**
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* Copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import type { AriaTemplateNode } from './injected/ariaSnapshot';
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import { yaml } from '../utilsBundle';
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export function parseAriaSnapshot(text: string): AriaTemplateNode {
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type YamlNode = Record<string, Array<YamlNode> | string>;
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const parseKey = (key: string): AriaTemplateNode => {
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if (!key)
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return { role: '' };
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const match = key.match(/^([a-z]+)(?:\s+(?:"([^"]*)"|\/([^\/]*)\/))?$/);
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if (!match)
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throw new Error(`Invalid key ${key}`);
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const role = match[1];
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if (role && role !== 'text' && !allRoles.includes(role))
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throw new Error(`Invalid role ${role}`);
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if (match[2])
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return { role, name: match[2] };
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if (match[3])
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return { role, name: new RegExp(match[3]) };
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return { role };
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};
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const valueOrRegex = (value: string): string | RegExp => {
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return value.startsWith('/') && value.endsWith('/') ? new RegExp(value.slice(1, -1)) : value;
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};
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const convert = (object: YamlNode | string): AriaTemplateNode | RegExp | string => {
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const key = typeof object === 'string' ? object : Object.keys(object)[0];
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const value = typeof object === 'string' ? undefined : object[key];
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const parsed = parseKey(key);
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if (parsed.role === 'text') {
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if (typeof value !== 'string')
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throw new Error(`Generic role must have a text value`);
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return valueOrRegex(value as string);
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}
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if (Array.isArray(value))
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parsed.children = value.map(convert);
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else if (value)
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parsed.children = [valueOrRegex(value)];
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return parsed;
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};
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const fragment = yaml.parse(text) as YamlNode[];
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return convert({ '': fragment }) as AriaTemplateNode;
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}
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const allRoles = [
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'alert', 'alertdialog', 'application', 'article', 'banner', 'blockquote', 'button', 'caption', 'cell', 'checkbox', 'code', 'columnheader', 'combobox', 'command',
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'complementary', 'composite', 'contentinfo', 'definition', 'deletion', 'dialog', 'directory', 'document', 'emphasis', 'feed', 'figure', 'form', 'generic', 'grid',
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'gridcell', 'group', 'heading', 'img', 'input', 'insertion', 'landmark', 'link', 'list', 'listbox', 'listitem', 'log', 'main', 'marquee', 'math', 'meter', 'menu',
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'menubar', 'menuitem', 'menuitemcheckbox', 'menuitemradio', 'navigation', 'none', 'note', 'option', 'paragraph', 'presentation', 'progressbar', 'radio', 'radiogroup',
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'range', 'region', 'roletype', 'row', 'rowgroup', 'rowheader', 'scrollbar', 'search', 'searchbox', 'section', 'sectionhead', 'select', 'separator', 'slider',
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'spinbutton', 'status', 'strong', 'structure', 'subscript', 'superscript', 'switch', 'tab', 'table', 'tablist', 'tabpanel', 'term', 'textbox', 'time', 'timer',
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'toolbar', 'tooltip', 'tree', 'treegrid', 'treeitem', 'widget', 'window'
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];
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