puppeteer/src/Dialog.ts
Jack Franklin a614bc45aa
chore: migrate src/Connection to TypeScript (#5694)
* chore: migrate `src/Connection` to TypeScript

This commit migrates `src/Connection` to TypeScript. It also changes its
exports to be ESM because TypeScript's support for exporting values to
use as types via CommonJS is poor (by design) and so rather than battle
that it made more sense to migrate the file to ESM.

The good news is that TypeScript is still outputting to `lib/` as
CommonJS, so the fact that we author in ESM is actually not a breaking
change at all.

So going forwards we will:

* migrate TS files to use ESM for importing and exporting
* continue to output to `lib/` as CommonJS
* continue to use CommonJS requires when in a `src/*.js` file

I'd also like to split `Connection.ts` into two; I think the
`CDPSession` class belongs in its own file, but I will do that in
another PR to avoid this one becoming bigger than it already is.

I also turned off `@typescript-eslint/no-use-before-define` as I don't
think it was adding value and Puppeteer's codebase seems to have a style
of declaring helper functions at the bottom which is fine by me.

Finally, I updated the DocLint tool so it knows of expected method
mismatches. It was either that or come up with a smart way to support
TypeScript generics in DocLint and given we don't want to use DocLint
that much longer that didn't feel worth it.

* Fix params being required
2020-04-21 09:20:25 +01:00

76 lines
1.9 KiB
TypeScript

/**
* Copyright 2017 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 helpers = require('./helper');
import {CDPSession} from './Connection';
const {assert} = helpers;
enum DialogType {
Alert = 'alert',
BeforeUnload = 'beforeunload',
Confirm = 'confirm',
Prompt = 'prompt'
}
class Dialog {
static Type = DialogType;
private _client: CDPSession;
private _type: DialogType;
private _message: string;
private _defaultValue: string;
private _handled = false;
constructor(client: CDPSession, type: DialogType, message: string, defaultValue = '') {
this._client = client;
this._type = type;
this._message = message;
this._defaultValue = defaultValue;
}
type(): DialogType {
return this._type;
}
message(): string {
return this._message;
}
defaultValue(): string {
return this._defaultValue;
}
async accept(promptText?: string): Promise<void> {
assert(!this._handled, 'Cannot accept dialog which is already handled!');
this._handled = true;
await this._client.send('Page.handleJavaScriptDialog', {
accept: true,
promptText: promptText
});
}
async dismiss(): Promise<void> {
assert(!this._handled, 'Cannot dismiss dialog which is already handled!');
this._handled = true;
await this._client.send('Page.handleJavaScriptDialog', {
accept: false
});
}
}
export = {Dialog};