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/**
* Copyright 2020 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 {Protocol} from 'devtools-protocol';
import {ElementHandle} from '../api/ElementHandle.js';
import {assert} from '../util/assert.js';
/**
* File choosers let you react to the page requesting for a file.
*
* @remarks
* `FileChooser` instances are returned via the {@link Page.waitForFileChooser} method.
*
* In browsers, only one file chooser can be opened at a time.
* All file choosers must be accepted or canceled. Not doing so will prevent
* subsequent file choosers from appearing.
*
* @example
*
* ```ts
* const [fileChooser] = await Promise.all([
* page.waitForFileChooser(),
* page.click('#upload-file-button'), // some button that triggers file selection
* ]);
* await fileChooser.accept(['/tmp/myfile.pdf']);
* ```
*
* @public
*/
export class FileChooser {
#element: ElementHandle<HTMLInputElement>;
#multiple: boolean;
#handled = false;
/**
* @internal
*/
constructor(
element: ElementHandle<HTMLInputElement>,
event: Protocol.Page.FileChooserOpenedEvent
) {
this.#element = element;
this.#multiple = event.mode !== 'selectSingle';
}
/**
* Whether file chooser allow for
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file#attr-multiple | multiple}
* file selection.
*/
isMultiple(): boolean {
return this.#multiple;
}
/**
* Accept the file chooser request with the given file paths.
*
* @remarks This will not validate whether the file paths exists. Also, if a
* path is relative, then it is resolved against the
* {@link https://nodejs.org/api/process.html#process_process_cwd | current working directory}.
* For locals script connecting to remote chrome environments, paths must be
* absolute.
*/
async accept(paths: string[]): Promise<void> {
assert(
!this.#handled,
'Cannot accept FileChooser which is already handled!'
);
this.#handled = true;
await this.#element.uploadFile(...paths);
}
/**
* Closes the file chooser without selecting any files.
*/
cancel(): void {
assert(
!this.#handled,
'Cannot cancel FileChooser which is already handled!'
);
this.#handled = true;
}
}
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