@luminati-io/webdriverio8/build/commands/element/shadow$.js

Next-gen browser and mobile automation test framework for Node.js

import logger from '@wdio/logger';
import { shadowFnFactory } from '../../scripts/shadowFnFactory.js';
import { getElement } from '../../utils/getElementObject.js';
import { getBrowserObject } from '../../utils/index.js';
import { findStrategy } from '../../utils/findStrategy.js';
import { SHADOW_ELEMENT_KEY } from '../../constants.js';
const log = logger('webdriverio');
/**
 *
 * Access an element inside a given element's shadowRoot. If you are working
 * with lots of nested shadow roots, an alternative approach to `shadow$` is
 * to use the [deep selector](https://webdriver.io/docs/selectors#deep-selectors).
 *
 * <example>
    :shadow$$.js
    it('should return an element inside a shadowRoot', async () => {
        const innerEl = await $('custom-component').shadow$('#innerEl');
        console.log(await innerEl.getValue()); // outputs: 'test123'
    });
 * </example>
 *
 * @alias element.shadow$
 * @param {String|Function} selector  selector or JS Function to fetch a certain element
 * @return {Element}
 * @type utility
 *
 */
export async function shadow$(selector) {
    const browser = getBrowserObject(this);
    try {
        const shadowRoot = await browser.getElementShadowRoot(this.elementId);
        const { using, value } = findStrategy(selector, this.isW3C, this.isMobile);
        const res = await browser.findElementFromShadowRoot(shadowRoot[SHADOW_ELEMENT_KEY], using, value);
        return getElement.call(this, selector, res, { isShadowElement: true });
    }
    catch (err) {
        log.warn(`Failed to fetch element within shadow DOM using WebDriver command: ${err.message}!\n` +
            'Falling back to JavaScript shim.');
        return this.$(shadowFnFactory(selector));
    }
}
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