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<!DOCTYPE html>
<meta charset="UTF-8">
<title>Test for scrollbar-*-color properties</title>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/WindowSnapshot.js"></script>
<style>
.outer {
width: 100px;
height: 100px;
background: yellow;
overflow: scroll;
}
.inner {
width: 200px;
height: 200px;
}
</style>
<style id="style"></style>
<div class="outer">
<div class="inner">
</div>
</div>
<script>
function countPixels(canvas) {
let result = new Map;
let ctx = canvas.getContext("2d");
let image = ctx.getImageData(0, 0, canvas.width, canvas.height);
let data = image.data;
let size = image.width * image.height;
for (let i = 0; i < size; i++) {
let key = data.subarray(i * 4, i * 4 + 3).toString();
let value = result.get(key);
value = value ? value : 0;
result.set(key, value + 1);
}
return result;
}
// == Native theme ==
const WIN_REFERENCES = [
// Yellow background
["255,255,0", 6889],
// Blue scrollbar face
["0,0,255", 540],
// Cyan scrollbar track
["0,255,255", 2487],
];
const MAC_REFERENCES = [
// Yellow background
["255,255,0", 7225],
// Blue scrollbar face
["0,0,255", 416],
// Cyan scrollbar track
["0,255,255", 1760],
];
// Values have been updated from 8100, 720, 1180 for linux1804
const LINUX_REFERENCES = [
// Yellow background
["255,255,0", 7744],
// Blue scrollbar face
["0,0,255", 1104],
// Cyan scrollbar track
["0,255,255", 1152],
];
// == Non-native theme ==
const WIN_NNT_REFERENCES = [
// Yellow background
["255,255,0", 7396],
// Blue scrollbar face
["0,0,255", 1272],
// Cyan scrollbar track
["0,255,255", 1204],
];
const MAC_NNT_REFERENCES = MAC_REFERENCES;
const LINUX_NNT_REFERENCES = [
// Yellow background
["255,255,0", 7744],
// Blue scrollbar face
["0,0,255", 368],
// Cyan scrollbar track
["0,255,255", 1852],
];
let outer = document.querySelector(".outer");
let outerRect = outer.getBoundingClientRect();
if (outerRect.width == outer.clientWidth &&
outerRect.height == outer.clientHeight) {
ok(true, "Using overlay scrollbar, skip this test");
} else {
document.querySelector("#style").textContent = `
.outer { scrollbar-color: blue cyan; }
`;
let canvas = snapshotRect(window, outerRect);
let stats = countPixels(canvas);
let isNNT = SpecialPowers.getBoolPref("widget.disable-native-theme-for-content");
let references;
if (navigator.platform.startsWith("Win")) {
references = isNNT ? WIN_NNT_REFERENCES : WIN_REFERENCES;
} else if (navigator.platform.startsWith("Mac")) {
references = isNNT ? MAC_NNT_REFERENCES : MAC_REFERENCES;
} else if (navigator.platform.startsWith("Linux")) {
references = isNNT ? LINUX_NNT_REFERENCES : LINUX_REFERENCES;
} else {
ok(false, "Unsupported platform");
}
for (let [color, count] of references) {
let value = stats.get(color);
is(value, count, `Pixel count of color ${color}`);
}
}
</script>
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