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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
EventEmitter: "resource://gre/modules/EventEmitter.sys.mjs",
});
const DIALOG_TYPES = {
ALERT: "alert",
BEFOREUNLOAD: "beforeunload",
CONFIRM: "confirm",
PROMPT: "prompt",
};
/**
* Helper dedicated to detect and interact with browser dialogs such as `alert`,
* `confirm` etc. The current implementation only supports tabmodal dialogs,
* not full window dialogs.
*
* Emits "dialog-loaded" when a javascript dialog is opened for the current
* browser.
*
* @param {BrowserElement} browser
*/
export class DialogHandler {
constructor(browser) {
lazy.EventEmitter.decorate(this);
this._dialog = null;
this._browser = browser;
this._onCommonDialogLoaded = this._onCommonDialogLoaded.bind(this);
Services.obs.addObserver(
this._onCommonDialogLoaded,
"common-dialog-loaded"
);
}
destructor() {
this._dialog = null;
this._pageTarget = null;
Services.obs.removeObserver(
this._onCommonDialogLoaded,
"common-dialog-loaded"
);
}
async handleJavaScriptDialog({ accept, promptText }) {
if (!this._dialog) {
throw new Error("No dialog available for handleJavaScriptDialog");
}
const type = this._getDialogType();
if (promptText && type === "prompt") {
this._dialog.ui.loginTextbox.value = promptText;
}
const onDialogClosed = new Promise(r => {
this._browser.addEventListener("DOMModalDialogClosed", r, {
once: true,
});
});
// 0 corresponds to the OK callback, 1 to the CANCEL callback.
if (accept) {
this._dialog.ui.button0.click();
} else {
this._dialog.ui.button1.click();
}
await onDialogClosed;
// Resetting dialog to null here might be racy and lead to errors if the
// content page is triggering several prompts in a row.
// See Bug 1569578.
this._dialog = null;
}
_getDialogType() {
const { inPermitUnload, promptType } = this._dialog.args;
if (inPermitUnload) {
return DIALOG_TYPES.BEFOREUNLOAD;
}
switch (promptType) {
case "alert":
return DIALOG_TYPES.ALERT;
case "confirm":
return DIALOG_TYPES.CONFIRM;
case "prompt":
return DIALOG_TYPES.PROMPT;
default:
throw new Error("Unsupported dialog type: " + promptType);
}
}
_onCommonDialogLoaded(dialogWindow) {
const dialogs =
this._browser.tabDialogBox.getContentDialogManager().dialogs;
const dialog = dialogs.find(d => d.frameContentWindow === dialogWindow);
if (!dialog) {
// The dialog is not for the current tab.
return;
}
this._dialog = dialogWindow.Dialog;
const message = this._dialog.args.text;
const type = this._getDialogType();
this.emit("dialog-loaded", { message, type });
}
}
|
