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<!doctype html>
<meta charset=utf-8>
<meta name=viewport content=width=device-width>
<title>Snap to an RTL slider's tick marks by clicking near them</title>
<link rel=help href="https://html.spec.whatwg.org/multipage/rendering.html#the-input-element-as-a-range-control">
<link rel=help href="https://bugzilla.mozilla.org/show_bug.cgi?id=1803118">
<link rel=author href="mailto:zach@zrhoffman.net" title="Zach Hoffman">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=/resources/testdriver.js></script>
<script src=/resources/testdriver-actions.js></script>
<script src=/resources/testdriver-vendor.js></script>
<input type=range list=tickmarks min=-5 max=35 dir=rtl>
<datalist id=tickmarks>
<option value=0></option>
<option value=3></option>
</datalist>
<script>
const range = document.querySelector("input[type=range]");
const step = 1;
promise_test(async function snapToRTLTickMarks() {
const assertions = [[-3, "-3"], [-2, "0"], [1, "0"], [2, "3"], [5, "3"], [6, "6"]];
const rect = range.getBoundingClientRect();
const padding = 10;
const right = rect.right - padding;
const width = rect.width - 2 * padding;
const actions = new test_driver.Actions();
const min = parseInt(range.min);
const max = parseInt(range.max);
for (const assertion of assertions) {
const moveTo = (right - width * (assertion[0] - min) / (max - min)) | 0;
const expected = assertion[1];
await actions
.pointerMove(moveTo, rect.top)
.pointerDown()
.pointerUp()
.send();
assert_equals(range.value, expected);
}
});
</script>
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