1 files changed, 70 insertions, 0 deletions
diff --git a/remote/test/puppeteer/packages/puppeteer-core/src/common/GetQueryHandler.ts b/remote/test/puppeteer/packages/puppeteer-core/src/common/GetQueryHandler.ts
new file mode 100644
index 0000000000..405f09e2c5
--- /dev/null
+++ b/remote/test/puppeteer/packages/puppeteer-core/src/common/GetQueryHandler.ts
@@ -0,0 +1,70 @@
+/**
+ * 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.
+ */
+
+import {ARIAQueryHandler} from './AriaQueryHandler.js';
+import {customQueryHandlers} from './CustomQueryHandler.js';
+import {PierceQueryHandler} from './PierceQueryHandler.js';
+import {PQueryHandler} from './PQueryHandler.js';
+import type {QueryHandler} from './QueryHandler.js';
+import {TextQueryHandler} from './TextQueryHandler.js';
+import {XPathQueryHandler} from './XPathQueryHandler.js';
+
+export const BUILTIN_QUERY_HANDLERS = Object.freeze({
+  aria: ARIAQueryHandler,
+  pierce: PierceQueryHandler,
+  xpath: XPathQueryHandler,
+  text: TextQueryHandler,
+});
+
+const QUERY_SEPARATORS = ['=', '/'];
+
+/**
+ * @internal
+ */
+export function getQueryHandlerByName(
+  name: string
+): typeof QueryHandler | undefined {
+  if (name in BUILTIN_QUERY_HANDLERS) {
+    return BUILTIN_QUERY_HANDLERS[name as 'aria'];
+  }
+  return customQueryHandlers.get(name);
+}
+
+/**
+ * @internal
+ */
+export function getQueryHandlerAndSelector(selector: string): {
+  updatedSelector: string;
+  QueryHandler: typeof QueryHandler;
+} {
+  for (const handlerMap of [
+    customQueryHandlers.names().map(name => {
+      return [name, customQueryHandlers.get(name)!] as const;
+    }),
+    Object.entries(BUILTIN_QUERY_HANDLERS),
+  ]) {
+    for (const [name, QueryHandler] of handlerMap) {
+      for (const separator of QUERY_SEPARATORS) {
+        const prefix = `${name}${separator}`;
+        if (selector.startsWith(prefix)) {
+          selector = selector.slice(prefix.length);
+          return {updatedSelector: selector, QueryHandler};
+        }
+      }
+    }
+  }
+  return {updatedSelector: selector, QueryHandler: PQueryHandler};
+}