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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/* 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";
/* import-globals-from ../../mochitest/layout.js */
loadScripts({ name: "layout.js", dir: MOCHITESTS_DIR });
function getCachedBounds(acc) {
let cachedBounds = "";
try {
cachedBounds = acc.cache.getStringProperty("relative-bounds");
} catch (e) {
ok(false, "Unable to fetch cached bounds from cache!");
}
return cachedBounds;
}
async function testCoordinates(accDoc, id, expectedWidthPx, expectedHeightPx) {
let acc = findAccessibleChildByID(accDoc, id, [Ci.nsIAccessibleImage]);
if (!acc) {
return;
}
let screenX = {};
let screenY = {};
let windowX = {};
let windowY = {};
let parentX = {};
let parentY = {};
// get screen coordinates.
acc.getImagePosition(
nsIAccessibleCoordinateType.COORDTYPE_SCREEN_RELATIVE,
screenX,
screenY
);
// get window coordinates.
acc.getImagePosition(
nsIAccessibleCoordinateType.COORDTYPE_WINDOW_RELATIVE,
windowX,
windowY
);
// get parent related coordinates.
acc.getImagePosition(
nsIAccessibleCoordinateType.COORDTYPE_PARENT_RELATIVE,
parentX,
parentY
);
// XXX For linked images, a negative parentY value is returned, and the
// screenY coordinate is the link's screenY coordinate minus 1.
// Until this is fixed, set parentY to -1 if it's negative.
if (parentY.value < 0) {
parentY.value = -1;
}
// See if asking image for child at image's screen coordinates gives
// correct accessible. getChildAtPoint operates on screen coordinates.
let tempAcc = null;
try {
tempAcc = acc.getChildAtPoint(screenX.value, screenY.value);
} catch (e) {}
is(tempAcc, acc, "Wrong accessible returned for position of " + id + "!");
// get image's parent.
let imageParentAcc = null;
try {
imageParentAcc = acc.parent;
} catch (e) {}
ok(imageParentAcc, "no parent accessible for " + id + "!");
if (imageParentAcc) {
// See if parent's screen coordinates plus image's parent relative
// coordinates equal to image's screen coordinates.
let parentAccX = {};
let parentAccY = {};
let parentAccWidth = {};
let parentAccHeight = {};
imageParentAcc.getBounds(
parentAccX,
parentAccY,
parentAccWidth,
parentAccHeight
);
is(
parentAccX.value + parentX.value,
screenX.value,
"Wrong screen x coordinate for " + id + "!"
);
// XXX see bug 456344
// is(
// parentAccY.value + parentY.value,
// screenY.value,
// "Wrong screen y coordinate for " + id + "!"
// );
}
let [expectedW, expectedH] = CSSToDevicePixels(
window,
expectedWidthPx,
expectedHeightPx
);
let width = {};
let height = {};
acc.getImageSize(width, height);
is(width.value, expectedW, "Wrong width for " + id + "!");
is(height.value, expectedH, "wrong height for " + id + "!");
}
addAccessibleTask(
`
<br>Simple image:<br>
<img id="nonLinkedImage" src="http://example.com/a11y/accessible/tests/mochitest/moz.png"/>
<br>Linked image:<br>
<a href="http://www.mozilla.org"><img id="linkedImage" src="http://example.com/a11y/accessible/tests/mochitest/moz.png"></a>
<br>Image with longdesc:<br>
<img id="longdesc" src="http://example.com/a11y/accessible/tests/mochitest/moz.png" longdesc="longdesc_src.html"
alt="Image of Mozilla logo"/>
<br>Image with invalid url in longdesc:<br>
<img id="invalidLongdesc" src="http://example.com/a11y/accessible/tests/mochitest/moz.png" longdesc="longdesc src.html"
alt="Image of Mozilla logo"/>
<br>Image with click and longdesc:<br>
<img id="clickAndLongdesc" src="http://example.com/a11y/accessible/tests/mochitest/moz.png" longdesc="longdesc_src.html"
alt="Another image of Mozilla logo" onclick="alert('Clicked!');"/>
<br>image described by a link to be treated as longdesc<br>
<img id="longdesc2" src="http://example.com/a11y/accessible/tests/mochitest/moz.png" aria-describedby="describing_link"
alt="Second Image of Mozilla logo"/>
<a id="describing_link" href="longdesc_src.html">link to description of image</a>
<br>Image described by a link to be treated as longdesc with whitespaces<br>
<img id="longdesc3" src="http://example.com/a11y/accessible/tests/mochitest/moz.png" aria-describedby="describing_link2"
alt="Second Image of Mozilla logo"/>
<a id="describing_link2" href="longdesc src.html">link to description of image</a>
<br>Image with click:<br>
<img id="click" src="http://example.com/a11y/accessible/tests/mochitest/moz.png"
alt="A third image of Mozilla logo" onclick="alert('Clicked, too!');"/>
`,
async function (browser, docAcc) {
// Test non-linked image
await testCoordinates(docAcc, "nonLinkedImage", 89, 38);
// Test linked image
await testCoordinates(docAcc, "linkedImage", 89, 38);
// Image with long desc
await testCoordinates(docAcc, "longdesc", 89, 38);
// Image with invalid url in long desc
await testCoordinates(docAcc, "invalidLongdesc", 89, 38);
// Image with click and long desc
await testCoordinates(docAcc, "clickAndLongdesc", 89, 38);
// Image with click
await testCoordinates(docAcc, "click", 89, 38);
// Image with long desc
await testCoordinates(docAcc, "longdesc2", 89, 38);
// Image described by HTML:a@href with whitespaces
await testCoordinates(docAcc, "longdesc3", 89, 38);
}
);
addAccessibleTask(
`
<br>Linked image:<br>
<a href="http://www.mozilla.org"><img id="linkedImage" src="http://example.com/a11y/accessible/tests/mochitest/moz.png"></a>
`,
async function (browser, docAcc) {
const imgAcc = findAccessibleChildByID(docAcc, "linkedImage", [
Ci.nsIAccessibleImage,
]);
const origCachedBounds = getCachedBounds(imgAcc);
await invokeContentTask(browser, [], () => {
const imgNode = content.document.getElementById("linkedImage");
imgNode.style = "margin-left: 1000px; margin-top: 500px;";
});
await untilCacheOk(() => {
return origCachedBounds != getCachedBounds(imgAcc);
}, "Cached bounds update after mutation");
},
{
// We can only access the `cache` attribute of an accessible when
// the cache is enabled and we're in a remote browser.
topLevel: true,
iframe: true,
}
);
|
