puppeteer-core
Version:
A high-level API to control headless Chrome over the DevTools Protocol
50 lines • 1.61 kB
JavaScript
;
/**
* @license
* Copyright 2023 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.customQuerySelectors = void 0;
/**
* This class mimics the injected {@link CustomQuerySelectorRegistry}.
*/
class CustomQuerySelectorRegistry {
#selectors = new Map();
register(name, handler) {
if (!handler.queryOne && handler.queryAll) {
const querySelectorAll = handler.queryAll;
handler.queryOne = (node, selector) => {
for (const result of querySelectorAll(node, selector)) {
return result;
}
return null;
};
}
else if (handler.queryOne && !handler.queryAll) {
const querySelector = handler.queryOne;
handler.queryAll = (node, selector) => {
const result = querySelector(node, selector);
return result ? [result] : [];
};
}
else if (!handler.queryOne || !handler.queryAll) {
throw new Error('At least one query method must be defined.');
}
this.#selectors.set(name, {
querySelector: handler.queryOne,
querySelectorAll: handler.queryAll,
});
}
unregister(name) {
this.#selectors.delete(name);
}
get(name) {
return this.#selectors.get(name);
}
clear() {
this.#selectors.clear();
}
}
exports.customQuerySelectors = new CustomQuerySelectorRegistry();
//# sourceMappingURL=CustomQuerySelector.js.map