86 lines
3.2 KiB
TypeScript
86 lines
3.2 KiB
TypeScript
/**
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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 * as js from '../../javascript';
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import { JSHandleChannel, JSHandleInitializer } from '../channels';
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import { Dispatcher, DispatcherScope } from './dispatcher';
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import { parseEvaluationResultValue, serializeAsCallArgument } from '../../common/utilityScriptSerializers';
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import { createHandle } from './elementHandlerDispatcher';
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export class JSHandleDispatcher extends Dispatcher<js.JSHandle, JSHandleInitializer> implements JSHandleChannel {
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constructor(scope: DispatcherScope, jsHandle: js.JSHandle) {
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super(scope, jsHandle, jsHandle.asElement() ? 'elementHandle' : 'jsHandle', {
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preview: jsHandle.toString(),
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});
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jsHandle._setPreviewCallback(preview => this._dispatchEvent('previewUpdated', preview));
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}
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async evaluateExpression(params: { expression: string, isFunction: boolean, arg: any }): Promise<any> {
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return this._object._evaluateExpression(params.expression, params.isFunction, true /* returnByValue */, parseArgument(params.arg));
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}
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async evaluateExpressionHandle(params: { expression: string, isFunction: boolean, arg: any}): Promise<JSHandleChannel> {
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const jsHandle = await this._object._evaluateExpression(params.expression, params.isFunction, false /* returnByValue */, parseArgument(params.arg));
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return createHandle(this._scope, jsHandle);
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}
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async getProperty(params: { name: string }): Promise<JSHandleChannel> {
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const jsHandle = await this._object.getProperty(params.name);
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return createHandle(this._scope, jsHandle);
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}
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async getPropertyList(): Promise<{ name: string, value: JSHandleChannel }[]> {
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const map = await this._object.getProperties();
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const result = [];
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for (const [name, value] of map)
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result.push({ name, value: new JSHandleDispatcher(this._scope, value) });
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return result;
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}
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async jsonValue(): Promise<any> {
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return serializeResult(await this._object.jsonValue());
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}
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async dispose() {
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await this._object.dispose();
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}
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}
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export function parseArgument(arg: { value: any, guids: JSHandleDispatcher[] }): any {
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return parseEvaluationResultValue(arg.value, convertDispatchersToObjects(arg.guids));
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}
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export function serializeResult(arg: any): any {
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return serializeAsCallArgument(arg, value => ({ fallThrough: value }));
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}
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function convertDispatchersToObjects(arg: any): any {
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if (arg === null)
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return null;
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if (Array.isArray(arg))
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return arg.map(item => convertDispatchersToObjects(item));
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if (arg instanceof JSHandleDispatcher)
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return arg._object;
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if (typeof arg === 'object') {
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const result: any = {};
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for (const key of Object.keys(arg))
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result[key] = convertDispatchersToObjects(arg[key]);
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return result;
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}
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return arg;
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}
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