87 lines
2.7 KiB
HTML
87 lines
2.7 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>CSS Scrollbars: scrollbar-width on scrollable areas correctly interacts with ::-webkit-scrollbar</title>
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<link rel="author" title="Luke Warlow" href="mailto:luke@warlow.dev" />
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<link rel="help" href="https://drafts.csswg.org/css-scrollbars-1/#width-compat" />
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/css/support/parsing-testcommon.js"></script>
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<style>
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.container {
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overflow: auto;
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height: 200px;
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width: 200px;
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margin: 1px;
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padding: 0px;
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border: none;
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background: deepskyblue;
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}
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.content {
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height: 300px;
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width: 100%;
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background: lightsalmon;
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}
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.container.auto {
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scrollbar-width: auto;
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}
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/* This is so that browsers that don't implement the WebKit prefix still pass the test */
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@supports not selector(::-webkit-scrollbar) {
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.container.auto {
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overflow: hidden;
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}
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}
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::-webkit-scrollbar {
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display: none;
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}
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.container.thin {
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scrollbar-width: thin;
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}
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</style>
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<script>
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function performTest() {
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setup({ explicit_done: true });
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// ltr
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test(function () {
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let container = document.getElementById('container_auto');
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let content = document.getElementById('content_auto');
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assert_equals(container.scrollWidth, 200, "auto scrollWidth");
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assert_equals(container.clientWidth, 200, "auto clientWidth");
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assert_equals(container.offsetLeft, content.offsetLeft, "auto offsetLeft");
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assert_equals(container.clientWidth, content.clientWidth, "auto clientWidth");
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assert_equals(container.offsetWidth, content.offsetWidth, "auto offsetWidth");
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}, "scrollbar-width auto defers to ::-webkit-scrollbar");
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test(function () {
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let container = document.getElementById('container_thin');
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let content = document.getElementById('content_thin');
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assert_less_than(container.scrollWidth, container.offsetWidth, "thin scrollWidth");
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assert_less_than(container.clientWidth, container.offsetWidth, "thin clientWidth");
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assert_equals(container.offsetLeft, content.offsetLeft, "thin offsetLeft");
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assert_equals(container.clientWidth, content.clientWidth, "thin clientWidth");
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assert_not_equals(container.offsetWidth, content.offsetWidth, "thin offsetWidth");
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}, "scrollbar-width thin overrides ::-webkit-scrollbar");
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done();
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}
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</script>
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<body onload="performTest()">
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Test scrollbar-width: vertical scrollbar
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<div class="container auto" id="container_auto">
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<div class="content" id="content_auto">auto</div>
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</div>
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<div class="container thin" id="container_thin">
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<div class="content" id="content_thin">thin</div>
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</div>
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</body>
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