mozilla-central/widget/tests/browser/browser_test_scrollbar_colors.js (file symbol)

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Test Info: Warnings

/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set sts=2 sw=2 et tw=80: */
"use strict";
add_task(async () => {
const URL_ROOT = getRootDirectory(gTestPath).replace(
);
const tab = await BrowserTestUtils.openNewForegroundTab(
gBrowser,
URL_ROOT + "helper_scrollbar_colors.html"
);
await SpecialPowers.spawn(tab.linkedBrowser, [], () => {
ChromeUtils.defineESModuleGetters(this, {
WindowsVersionInfo:
});
Services.scriptloader.loadSubScript(
this
);
// == Native theme ==
const MAC_REFERENCES = [
// Yellow background
["255,255,0", 7225],
// Blue scrollbar face
["0,0,255", 416],
// Cyan scrollbar track
["0,255,255", 1760],
];
// == Non-native theme ==
const WIN10_REFERENCES = [
// Yellow background
["255,255,0", 6889],
// Blue scrollbar face
["0,0,255", 612],
// Cyan scrollbar track
["0,255,255", 2355],
];
const WIN11_REFERENCES = [
// Yellow background
["255,255,0", 6889],
// Blue scrollbar face
["0,0,255", 324],
// Cyan scrollbar track
["0,255,255", 2787],
];
const LINUX_REFERENCES = [
// Yellow background
["255,255,0", 7744],
// Blue scrollbar face
["0,0,255", 368],
// Cyan scrollbar track
["0,255,255", 1852],
];
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;
}
let outer = content.document.querySelector(".outer");
let outerRect = outer.getBoundingClientRect();
if (
outerRect.width == outer.clientWidth &&
outerRect.height == outer.clientHeight
) {
ok(true, "Using overlay scrollbar, skip this test");
return;
}
content.document.querySelector("#style").textContent = `
.outer { scrollbar-color: blue cyan; }
`;
let canvas = snapshotRect(content.window, outerRect);
let stats = countPixels(canvas);
let references;
if (content.navigator.platform.startsWith("Win")) {
if (WindowsVersionInfo.get().buildNumber >= 22000) {
// Windows 11
references = WIN11_REFERENCES;
} else {
// Windows 10
references = WIN10_REFERENCES;
}
} else if (content.navigator.platform.startsWith("Mac")) {
references = MAC_REFERENCES;
} else if (content.navigator.platform.startsWith("Linux")) {
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}`);
}
});
BrowserTestUtils.removeTab(tab);
});