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
136
137
138
139
140
141
142
143
144
145
146
147
|
/* 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/. */
"use strict";
/* exported initAccService, shutdownAccService, waitForEvent, setE10sPrefs,
unsetE10sPrefs, accConsumersChanged */
// Load the shared-head file first.
/* import-globals-from shared-head.js */
Services.scriptloader.loadSubScript(
"chrome://mochitests/content/browser/accessible/tests/browser/shared-head.js",
this
);
const { CommonUtils } = ChromeUtils.importESModule(
"chrome://mochitests/content/browser/accessible/tests/browser/Common.sys.mjs"
);
/**
* Set e10s related preferences in the test environment.
* @return {Promise} promise that resolves when preferences are set.
*/
function setE10sPrefs() {
return new Promise(resolve =>
SpecialPowers.pushPrefEnv(
{
set: [["browser.tabs.remote.autostart", true]],
},
resolve
)
);
}
/**
* Unset e10s related preferences in the test environment.
* @return {Promise} promise that resolves when preferences are unset.
*/
function unsetE10sPrefs() {
return new Promise(resolve => {
SpecialPowers.popPrefEnv(resolve);
});
}
/**
* Capture when 'a11y-consumers-changed' event is fired.
*
* @param {?Object} target
* [optional] browser object that indicates that accessibility service
* is in content process.
* @return {Array}
* List of promises where first one is the promise for when the event
* observer is added and the second one for when the event is observed.
*/
function accConsumersChanged(target) {
return target
? [
SpecialPowers.spawn(target, [], () =>
content.CommonUtils.addAccConsumersChangedObserver()
),
SpecialPowers.spawn(target, [], () =>
content.CommonUtils.observeAccConsumersChanged()
),
]
: [
CommonUtils.addAccConsumersChangedObserver(),
CommonUtils.observeAccConsumersChanged(),
];
}
/**
* Capture when accessibility service is initialized.
*
* @param {?Object} target
* [optional] browser object that indicates that accessibility service
* is expected to be initialized in content process.
* @return {Array}
* List of promises where first one is the promise for when the event
* observer is added and the second one for when the event is observed.
*/
function initAccService(target) {
return target
? [
SpecialPowers.spawn(target, [], () =>
content.CommonUtils.addAccServiceInitializedObserver()
),
SpecialPowers.spawn(target, [], () =>
content.CommonUtils.observeAccServiceInitialized()
),
]
: [
CommonUtils.addAccServiceInitializedObserver(),
CommonUtils.observeAccServiceInitialized(),
];
}
/**
* Capture when accessibility service is shutdown.
*
* @param {?Object} target
* [optional] browser object that indicates that accessibility service
* is expected to be shutdown in content process.
* @return {Array}
* List of promises where first one is the promise for when the event
* observer is added and the second one for when the event is observed.
*/
function shutdownAccService(target) {
return target
? [
SpecialPowers.spawn(target, [], () =>
content.CommonUtils.addAccServiceShutdownObserver()
),
SpecialPowers.spawn(target, [], () =>
content.CommonUtils.observeAccServiceShutdown()
),
]
: [
CommonUtils.addAccServiceShutdownObserver(),
CommonUtils.observeAccServiceShutdown(),
];
}
/**
* Simpler verions of waitForEvent defined in
* accessible/tests/browser/events.js
*/
function waitForEvent(eventType, expectedId) {
return new Promise(resolve => {
let eventObserver = {
observe(subject) {
let event = subject.QueryInterface(Ci.nsIAccessibleEvent);
let id;
try {
id = event.accessible.id;
} catch (e) {
// This can throw NS_ERROR_FAILURE.
}
if (event.eventType === eventType && id === expectedId) {
Services.obs.removeObserver(this, "accessible-event");
resolve(event);
}
},
};
Services.obs.addObserver(eventObserver, "accessible-event");
});
}
|
