puppeteer-core
Version:
A high-level API to control headless Chrome over the DevTools Protocol
60 lines • 2.13 kB
JavaScript
;
/**
* Copyright 2023 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
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();
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