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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
|
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Tests tabs.captureTab and tabs.captureVisibleTab</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="/tests/SimpleTest/ExtensionTestUtils.js"></script>
<script type="text/javascript" src="head.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<script type="text/javascript">
"use strict";
async function runTest({ html, fullZoom, coords, rect, scale }) {
let url = `data:text/html,${encodeURIComponent(html)}#scroll`;
async function background({ coords, rect, scale, method, fullZoom }) {
try {
// Wait for the page to load
await new Promise(resolve => {
browser.webNavigation.onCompleted.addListener(
() => resolve(),
{url: [{schemes: ["data"]}]});
});
let [tab] = await browser.tabs.query({
currentWindow: true,
active: true,
});
// TODO: Bug 1665429 - on mobile we ignore zoom for now
if (browser.tabs.setZoom) {
await browser.tabs.setZoom(tab.id, fullZoom ?? 1);
}
let id = method === "captureVisibleTab" ? tab.windowId : tab.id;
let [jpeg, png, ...pngs] = await Promise.all([
browser.tabs[method](id, { format: "jpeg", quality: 95, rect, scale }),
browser.tabs[method](id, { format: "png", quality: 95, rect, scale }),
browser.tabs[method](id, { quality: 95, rect, scale }),
browser.tabs[method](id, { rect, scale }),
]);
browser.test.assertTrue(
pngs.every(url => url == png),
"All PNGs are identical"
);
browser.test.assertTrue(
jpeg.startsWith("data:image/jpeg;base64,"),
"jpeg is JPEG"
);
browser.test.assertTrue(
png.startsWith("data:image/png;base64,"),
"png is PNG"
);
let promises = [jpeg, png].map(
url =>
new Promise(resolve => {
let img = new Image();
img.src = url;
img.onload = () => resolve(img);
})
);
let width = (rect?.width ?? tab.width) * (scale ?? devicePixelRatio);
let height = (rect?.height ?? tab.height) * (scale ?? devicePixelRatio);
[jpeg, png] = await Promise.all(promises);
let images = { jpeg, png };
for (let format of Object.keys(images)) {
let img = images[format];
// WGP.drawSnapshot() deals in int coordinates, and rounds down.
browser.test.assertTrue(
Math.abs(width - img.width) <= 1,
`${format} ok image width: ${img.width}, expected: ${width}`
);
browser.test.assertTrue(
Math.abs(height - img.height) <= 1,
`${format} ok image height ${img.height}, expected: ${height}`
);
let canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
canvas.mozOpaque = true;
let ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
for (let { x, y, color } of coords) {
x = (x + img.width) % img.width;
y = (y + img.height) % img.height;
let imageData = ctx.getImageData(x, y, 1, 1).data;
if (format == "png") {
browser.test.assertEq(
`rgba(${color},255)`,
`rgba(${[...imageData]})`,
`${format} image color is correct at (${x}, ${y})`
);
} else {
// Allow for some deviation in JPEG version due to lossy compression.
const SLOP = 3;
browser.test.log(
`Testing ${format} image color at (${x}, ${y}), have rgba(${[
...imageData,
]}), expecting approx. rgba(${color},255)`
);
browser.test.assertTrue(
Math.abs(color[0] - imageData[0]) <= SLOP,
`${format} image color.red is correct at (${x}, ${y})`
);
browser.test.assertTrue(
Math.abs(color[1] - imageData[1]) <= SLOP,
`${format} image color.green is correct at (${x}, ${y})`
);
browser.test.assertTrue(
Math.abs(color[2] - imageData[2]) <= SLOP,
`${format} image color.blue is correct at (${x}, ${y})`
);
browser.test.assertEq(
255,
imageData[3],
`${format} image color.alpha is correct at (${x}, ${y})`
);
}
}
}
browser.test.notifyPass("captureTab");
} catch (e) {
browser.test.fail(`Error: ${e} :: ${e.stack}`);
browser.test.notifyFail("captureTab");
}
}
for (let method of ["captureTab", "captureVisibleTab"]) {
let options = { coords, rect, scale, method, fullZoom };
info(`Testing configuration: ${JSON.stringify(options)}`);
let extension = ExtensionTestUtils.loadExtension({
manifest: {
permissions: ["<all_urls>", "webNavigation"],
},
background: `(${background})(${JSON.stringify(options)})`,
});
await extension.startup();
let testWindow = window.open(url);
await extension.awaitFinish("captureTab");
testWindow.close();
await extension.unload();
}
}
async function testEdgeToEdge({ color, fullZoom }) {
let neutral = [0xaa, 0xaa, 0xaa];
let html = `
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body style="background-color: rgb(${color})">
<!-- Fill most of the image with a neutral color to test edge-to-edge scaling. -->
<div style="position: absolute;
left: 2px;
right: 2px;
top: 2px;
bottom: 2px;
background: rgb(${neutral});"></div>
</body>
</html>
`;
// Check the colors of the first and last pixels of the image, to make
// sure we capture the entire frame, and scale it correctly.
let coords = [
{ x: 0, y: 0, color },
{ x: -1, y: -1, color },
{ x: 300, y: 200, color: neutral },
];
info(`Test edge to edge color ${color} at fullZoom=${fullZoom}`);
await runTest({ html, fullZoom, coords });
}
add_task(async function testCaptureEdgeToEdge() {
await testEdgeToEdge({ color: [0, 0, 0], fullZoom: 1 });
await testEdgeToEdge({ color: [0, 0, 0], fullZoom: 2 });
await testEdgeToEdge({ color: [0, 0, 0], fullZoom: 0.5 });
await testEdgeToEdge({ color: [255, 255, 255], fullZoom: 1 });
});
const tallDoc = `<!DOCTYPE html>
<meta charset=utf-8>
<meta name="viewport" content="width=device-width, initial-scale=1">
<div style="background: yellow; width: 50%; height: 500px;"></div>
<div id=scroll style="background: red; width: 25%; height: 5000px;"></div>
Opened with the #scroll fragment, scrolls the div ^ into view.
`;
// Test currently visible viewport is captured if scrolling is involved.
add_task(async function testScrolledViewport() {
await runTest({
html: tallDoc,
coords: [
{ x: 50, y: 50, color: [255, 0, 0] },
{ x: 50, y: -50, color: [255, 0, 0] },
{ x: -50, y: -50, color: [255, 255, 255] },
],
});
});
// Test rect and scale options.
add_task(async function testRectAndScale() {
await runTest({
html: tallDoc,
rect: { x: 50, y: 50, width: 10, height: 1000 },
scale: 4,
coords: [
{ x: 0, y: 0, color: [255, 255, 0] },
{ x: -1, y: 0, color: [255, 255, 0] },
{ x: 0, y: -1, color: [255, 0, 0] },
{ x: -1, y: -1, color: [255, 0, 0] },
],
});
});
// Test OOP iframes are captured, for Fission compatibility.
add_task(async function testOOPiframe() {
await runTest({
html: `<!DOCTYPE html>
<meta charset=utf-8>
<meta name="viewport" content="width=device-width, initial-scale=1">
<iframe src="http://example.net/tests/toolkit/components/extensions/test/mochitest/file_green.html"></iframe>
`,
coords: [
{ x: 50, y: 50, color: [0, 255, 0] },
{ x: 50, y: -50, color: [255, 255, 255] },
{ x: -50, y: 50, color: [255, 255, 255] },
],
});
});
add_task(async function testOOPiframeScale() {
let scale = 2;
await runTest({
html: `<!DOCTYPE html>
<meta charset=utf-8>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {
background: yellow;
margin: 0;
}
</style>
<iframe frameborder="0" style="width: 300px; height: 300px" src="http://example.net/tests/toolkit/components/extensions/test/mochitest/file_green_blue.html"></iframe>
`,
coords: [
{ x: 20 * scale, y: 20 * scale, color: [0, 255, 0] },
{ x: 200 * scale, y: 20 * scale, color: [0, 0, 255] },
{ x: 20 * scale, y: 200 * scale, color: [0, 0, 255] },
],
scale,
});
});
add_task(async function testCaptureTabPermissions() {
let extension = ExtensionTestUtils.loadExtension({
manifest: {
permissions: ["tabs"],
},
background() {
browser.test.assertEq(
undefined,
browser.tabs.captureTab,
'Extension without "<all_urls>" permission should not have access to captureTab'
);
browser.test.notifyPass("captureTabPermissions");
},
});
await extension.startup();
await extension.awaitFinish("captureTabPermissions");
await extension.unload();
});
add_task(async function testCaptureVisibleTabPermissions() {
let extension = ExtensionTestUtils.loadExtension({
manifest: {
permissions: ["tabs"],
},
background() {
browser.test.assertEq(
undefined,
browser.tabs.captureVisibleTab,
'Extension without "<all_urls>" permission should not have access to captureVisibleTab'
);
browser.test.notifyPass("captureVisibleTabPermissions");
},
});
await extension.startup();
await extension.awaitFinish("captureVisibleTabPermissions");
await extension.unload();
});
</script>
</body>
</html>
|
