54 lines
2.1 KiB
TypeScript
54 lines
2.1 KiB
TypeScript
/**
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* Copyright 2017 Google Inc. All rights reserved.
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* Modifications 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 { PageChannel, AXNode } from '../../protocol/channels';
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import { ElementHandle } from './elementHandle';
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type SerializedAXNode = Omit<AXNode, 'valueString' | 'valueNumber' | 'children' | 'checked' | 'pressed'> & {
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value?: string|number,
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checked?: boolean | 'mixed',
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pressed?: boolean | 'mixed',
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children?: SerializedAXNode[]
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};
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function axNodeFromProtocol(axNode: AXNode): SerializedAXNode {
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const result: SerializedAXNode = {
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...axNode,
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value: axNode.valueNumber !== undefined ? axNode.valueNumber : axNode.valueString,
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checked: axNode.checked === 'checked' ? true : axNode.checked === 'unchecked' ? false : axNode.checked,
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pressed: axNode.pressed === 'pressed' ? true : axNode.pressed === 'released' ? false : axNode.pressed,
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children: axNode.children ? axNode.children.map(axNodeFromProtocol) : undefined,
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};
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delete (result as any).valueNumber;
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delete (result as any).valueString;
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return result;
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}
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export class Accessibility {
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private _channel: PageChannel;
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constructor(channel: PageChannel) {
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this._channel = channel;
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}
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async snapshot(options: { interestingOnly?: boolean; root?: ElementHandle } = {}): Promise<SerializedAXNode | null> {
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const root = options.root ? options.root._elementChannel : undefined;
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const result = await this._channel.accessibilitySnapshot({ interestingOnly: options.interestingOnly, root });
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return result.rootAXNode ? axNodeFromProtocol(result.rootAXNode) : null;
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}
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}
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