122 lines
No EOL
4.7 KiB
HTML
122 lines
No EOL
4.7 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title> CSS Scroll Snap 2 Test: scroll-start-*</title>
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<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-2/#scroll-start">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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</head>
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<body>
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<style>
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.spacer {
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width: 500px;
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height: 500px;
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border: solid 1px green;
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}
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.scroller {
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width: 100px;
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height: 100px;
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border: solid 1px black;
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overflow: scroll;
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}
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</style>
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<div id="lengthscroller" class="scroller" style="scroll-start: 100px">
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<div class="spacer"></div>
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</div>
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<div id="percentscroller" class="scroller" style="scroll-start: 25%">
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<div class="spacer"></div>
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</div>
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<div id="calcscroller" class="scroller" style="scroll-start: calc(50px)">
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<div class="spacer"></div>
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</div>
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<div id="startscroller" class="scroller" style="scroll-start: start">
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<div class="spacer"></div>
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</div>
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<div id="centerscroller" class="scroller" style="scroll-start: center">
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<div class="spacer"></div>
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</div>
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<div id="endscroller" class="scroller" style="scroll-start: end">
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<div class="spacer"></div>
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</div>
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<div id="topscroller" class="scroller" style="scroll-start: top">
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<div class="spacer"></div>
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</div>
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<div id="bottomscroller" class="scroller" style="scroll-start: bottom">
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<div class="spacer"></div>
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</div>
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<div id="leftscroller" class="scroller" style="scroll-start: auto left">
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<div class="spacer"></div>
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</div>
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<div id="rightscroller" class="scroller" style="scroll-start: auto right">
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<div class="spacer"></div>
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</div>
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<div id="clampedscroller" class="scroller" style="scroll-start: 1000px 1000px">
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<div class="spacer"></div>
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</div>
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<script>promise_test(async (t) => {
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let length_scroller = document.getElementById("lengthscroller");
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assert_equals(length_scroller.scrollTop, 100,
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"scroll-start: <length> sets initial scroll position");
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let percent_scroller = document.getElementById("percentscroller");
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const percent_scroll_top = 0.25 * (percent_scroller.scrollHeight -
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percent_scroller.clientHeight);
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assert_approx_equals(percent_scroller.scrollTop, percent_scroll_top, 1,
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"scroll-start: <percent> sets initial scroll position");
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let calc_scroller = document.getElementById("calcscroller");
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assert_equals(calc_scroller.scrollTop, 50,
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"scroll-start: <calc> sets initial scroll position");
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let start_scroller = document.getElementById("startscroller");
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assert_equals(start_scroller.scrollTop, 0,
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"scroll-start: start sets initial scroll position");
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let center_scroller = document.getElementById("centerscroller");
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const center_scroll_top = 0.5 * (center_scroller.scrollHeight -
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center_scroller.clientHeight);
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assert_approx_equals(center_scroller.scrollTop, center_scroll_top, 1,
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"scroll-start: center sets initial scroll position");
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let end_scroller = document.getElementById("endscroller");
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const end_scroll_top = end_scroller.scrollHeight -
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end_scroller.clientHeight;
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assert_equals(end_scroller.scrollTop, end_scroll_top,
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"scroll-start: end sets initial scroll position");
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let top_scroller = document.getElementById("topscroller");
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assert_equals(top_scroller.scrollTop, 0,
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"scroll-start: top sets initial scroll position");
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let bottom_scroller = document.getElementById("bottomscroller");
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const bottom_scroll_top = bottom_scroller.scrollHeight -
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bottom_scroller.clientHeight;
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assert_equals(bottom_scroller.scrollTop, bottom_scroll_top,
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"scroll-start: bottom sets initial scroll position");
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let left_scroller = document.getElementById("leftscroller");
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assert_equals(left_scroller.scrollLeft, 0,
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"scroll-start: left sets initial scroll position");
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let right_scroller = document.getElementById("rightscroller");
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const right_scroll_top = right_scroller.scrollWidth -
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right_scroller.clientWidth;
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assert_equals(right_scroller.scrollLeft, right_scroll_top,
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"scroll-start: right sets initial scroll position");
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let clamped_scroller = document.getElementById("clampedscroller");
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const clamped_scroll_top = clamped_scroller.scrollHeight -
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clamped_scroller.clientHeight;
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const clamped_scroll_left = clamped_scroller.scrollWidth -
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clamped_scroller.clientWidth;
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assert_equals(clamped_scroller.scrollTop, clamped_scroll_top,
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"scroll-start is clamped to max vertical scroll offset");
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assert_equals(clamped_scroller.scrollLeft, clamped_scroll_left,
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"scroll-start is clamped to max horizontal scroll offset");
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});
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</script>
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</body> |