📦 microsoft / playwright

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135/**
 * Copyright 2017 Google Inc. All rights reserved.
 * Modifications copyright (c) Microsoft Corporation.
 *
 * 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 { assert } from '../utils';
import { SdkObject } from './instrumentation';

import type { Instrumentation } from './instrumentation';
import type { Page } from './page';

type OnHandle = (accept: boolean, promptText?: string) => Promise<void>;

export type DialogType = 'alert' | 'beforeunload' | 'confirm' | 'prompt';

export class Dialog extends SdkObject {
  private _page: Page;
  private _type: DialogType;
  private _message: string;
  private _onHandle: OnHandle;
  private _handled = false;
  private _defaultValue: string;

  constructor(page: Page, type: DialogType, message: string, onHandle: OnHandle, defaultValue?: string) {
    super(page, 'dialog');
    this._page = page;
    this._type = type;
    this._message = message;
    this._onHandle = onHandle;
    this._defaultValue = defaultValue || '';
  }

  page() {
    return this._page;
  }

  type(): string {
    return this._type;
  }

  message(): string {
    return this._message;
  }

  defaultValue(): string {
    return this._defaultValue;
  }

  async accept(promptText?: string) {
    assert(!this._handled, 'Cannot accept dialog which is already handled!');
    this._handled = true;
    this._page.browserContext.dialogManager.dialogWillClose(this);
    await this._onHandle(true, promptText);
  }

  async dismiss() {
    assert(!this._handled, 'Cannot dismiss dialog which is already handled!');
    this._handled = true;
    this._page.browserContext.dialogManager.dialogWillClose(this);
    await this._onHandle(false);
  }

  async close() {
    if (this._type === 'beforeunload')
      await this.accept();
    else
      await this.dismiss();
  }
}

export class DialogManager {
  private _instrumentation: Instrumentation;
  private _dialogHandlers = new Set<(dialog: Dialog) => boolean>();
  private _openedDialogs = new Set<Dialog>();

  constructor(instrumentation: Instrumentation) {
    this._instrumentation = instrumentation;
  }

  dialogDidOpen(dialog: Dialog) {
    // Any ongoing evaluations will be stalled until the dialog is closed.
    for (const frame of dialog.page().frameManager.frames())
      frame._invalidateNonStallingEvaluations('JavaScript dialog interrupted evaluation');
    this._openedDialogs.add(dialog);
    this._instrumentation.onDialog(dialog);

    let hasHandlers = false;
    for (const handler of this._dialogHandlers) {
      if (handler(dialog))
        hasHandlers = true;
    }
    if (!hasHandlers)
      dialog.close().then(() => {});
  }

  dialogWillClose(dialog: Dialog) {
    this._openedDialogs.delete(dialog);
  }

  addDialogHandler(handler: (dialog: Dialog) => boolean) {
    this._dialogHandlers.add(handler);
  }

  removeDialogHandler(handler: (dialog: Dialog) => boolean) {
    this._dialogHandlers.delete(handler);
    if (!this._dialogHandlers.size) {
      for (const dialog of this._openedDialogs)
        dialog.close().catch(() => {});
    }
  }

  hasOpenDialogsForPage(page: Page) {
    return [...this._openedDialogs].some(dialog => dialog.page() === page);
  }

  async closeBeforeUnloadDialogs() {
    await Promise.all([...this._openedDialogs].map(async dialog => {
      if (dialog.type() === 'beforeunload')
        await dialog.dismiss();
    }));
  }
}