woocommerce-paypal-payments/modules/ppcp-button/resources/js/modules/Preview/DummyPreviewButton.js

import PreviewButton from './PreviewButton';

/**
 * Dummy preview button, to use in case an APM button cannot be rendered
 */
export default class DummyPreviewButton extends PreviewButton {
	#innerEl;

	constructor( args ) {
		super( args );

		this.selector = `${ args.selector }Dummy`;
		this.label = args.label || 'Not Available';
	}

	createNewWrapper() {
		const wrapper = super.createNewWrapper();
		wrapper.classList.add( 'ppcp-button-apm', 'ppcp-button-dummy' );

		return wrapper;
	}

	createButton( buttonConfig ) {
		this.#innerEl?.remove();

		this.#innerEl = document.createElement( 'div' );
		this.#innerEl.innerHTML = `<div class="reason">${ this.label }</div>`;

		this._applyStyles( this.ppcpConfig?.button?.style );

		this.domWrapper.appendChild( this.#innerEl );
	}

	/**
	 * Applies the button shape (rect/pill) to the dummy button
	 *
	 * @param {{shape: string, height: number|null}} style
	 * @private
	 */
	_applyStyles( style ) {
		this.domWrapper.classList.remove(
			'ppcp-button-pill',
			'ppcp-button-rect'
		);

		this.domWrapper.classList.add( `ppcp-button-${ style.shape }` );

		if ( style.height ) {
			this.domWrapper.style.height = `${ style.height }px`;
		}
	}
}