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Update web-platform-tests to revision ac16628eb7eb601957382053011363d2bcf8ce44
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<!DOCTYPE html>
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<title>HTML: widgets' baseline alignment and interaction with 'overflow'</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<!--
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This test tests where the baseline is for different widgets.
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This isn't yet specified, see https://github.com/whatwg/html/issues/5065
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Where the baseline is affects where *other* things on the same linebox are positioned. So this test
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makes assertions about the offsetTop for a previous sibling <span>, and compares it to a reference
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that has equivalent setup but using a styled <span> instead of an actual widget (where possible) so
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we can control where its baseline will be (assuming a correct CSS implementation).
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CSS has the following behavior regarding baselines (this is non-normative, also read the spec):
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* for a normal inline containing text, the baseline is the same as the text's baseline.
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* for replaced elements (like images), the baseline is at the bottom margin-box edge.
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* for an inline-block, it depends on its 'overflow':
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- 'visible': the baseline is the same as the baseline for the last line box in the inline-block.
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- otherwise: the baseline is like replaced elements.
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The baselines for different widgets, as implemented in Firefox, are as follows:
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<input type=text>
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<input type=search>
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<input type=tel>
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<input type=email>
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<input type=password>
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<input type=date>
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<input type=month>
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<input type=week>
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<input type=time>
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<input type=datetime-local>
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<input type=number>
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<input type=submit>
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<input type=reset>
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<input type=button>
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Like inline-block but 'overflow' is forced to 'visible' and text inside is vertically centered.
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<input type=checkbox> with 'appearance: auto'
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<input type=radio> with 'appearance: auto'
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At the border-box edge. (Since baseline at border-box edge isn't a behavior CSS has normally, we
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fake it in the references with the 'no-margin-bottom' class.)
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<input type=color>
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At the content-box edge.
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<input type=file>
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Like inline-block but 'overflow' is forced to to 'visible' and it contains a button; the button
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can affect where the baseline is.
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<input type=image> showing alt text, with 'overflow: visible'
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Like inline-block.
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<input type=image> showing an image
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<input type=image> showing alt text, with 'overflow' something other than 'visible'
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<input type=range>
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<input type=checkbox> with 'appearance: none'
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<input type=radio> with 'appearance: none'
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Like replaced elements.
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-->
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<style>
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.test {
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border-collapse: collapse;
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font-size: 10px;
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}
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.test td {
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border: none;
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padding: 0;
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margin:0;
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outline: 1px solid silver;
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}
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.test td > input,
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.ref td > .fake-input-text,
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.ref td > .inline-block,
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.ref td > img,
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.ref td > button {
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font: inherit;
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height: 60px;
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width: 60px;
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padding: 10px;
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box-sizing: border-box;
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margin: 10px 0;
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/* Note: a border is not specified because that would imply 'appearance: none' for some widgets */
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}
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.ref button img {
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height: 100%;
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width: 100%;
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display: block;
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}
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/* Use inline-grid instead of inline-block here to more easily center the text inside */
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.ref .fake-input-text {
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display: inline-grid;
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border: 2px solid; /* 2px matches UA default style */
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align-items: center;
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}
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.ref .inline-block {
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display: inline-block;
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}
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.ref td > img.no-margin-bottom {
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margin-bottom: 0;
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}
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[style*="appearance: none;"] {
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-webkit-appearance: none; /* TODO(zcorpan) remove this when unprefixed appearance is supported */
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}
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</style>
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<div id="log"></div>
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<h2>refs</h2>
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<!--
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The first span's offsetTop is what we want to compare with the corresponding test's span's offsetTop.
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The sibling element is there to control where the baseline for the line box will be.
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-->
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<table class="test ref">
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<tr class="ref-text-input-like"><td><span>ref-text-input-like</span> <span class=fake-input-text>x</span>
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<tr class="ref-checkbox-input-appearance-auto-like"><td><span>ref-checkbox-input-appearance-auto-like</span> <img class=no-margin-bottom src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAMCAIAAAD3UuoiAAAAGklEQVQoz2Nk%2BP%2BfgRqAiYFKYNSgUYOGp0EA%2BQMCFrJdTgsAAAAASUVORK5CYII%3D">
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<tr class="ref-color-input-like"><td><span>ref-color-input-like</span> <button><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAMCAIAAAD3UuoiAAAAGklEQVQoz2Nk%2BP%2BfgRqAiYFKYNSgUYOGp0EA%2BQMCFrJdTgsAAAAASUVORK5CYII%3D"></button>
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<tr class="ref-file-input-like"><td><span>ref-file-input-like</span> <span class=inline-block><button>x</button></span>
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<tr class="ref-image-input-showing-alt-overflow-visible-like"><td><span>ref-image-input-showing-alt-overflow-visible-like</span> <span class=inline-block>x</span>
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<tr class="ref-image-input-showing-image-like"><td><span>ref-image-input-showing-image-like</span> <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAMCAIAAAD3UuoiAAAAGklEQVQoz2Nk%2BP%2BfgRqAiYFKYNSgUYOGp0EA%2BQMCFrJdTgsAAAAASUVORK5CYII%3D">
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</table>
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<h2>template table</h2>
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<!--
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Each row in this table will be cloned into #test-table for each combination of styles to test.
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-->
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<table id="template-table">
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<tr><td><span>text</span> <input type=text value=x></td></tr>
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<tr><td><span>search</span> <input type=search value=x></td></tr>
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<tr><td><span>tel</span> <input type=tel value=x></td></tr>
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<tr><td><span>url</span> <input type=url value="data:,x"></td></tr>
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<tr><td><span>email</span> <input type=email value=x></td></tr>
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<tr><td><span>password</span> <input type=password value=x></td></tr>
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<tr><td><span>date</span> <input type=date value="2020-01-01"></td></tr>
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<tr><td><span>month</span> <input type=month value="2020-01"></td></tr>
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<tr><td><span>week</span> <input type=week value="2020-W01"></td></tr>
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<tr><td><span>time</span> <input type=time value="00:00"></td></tr>
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<tr><td><span>datetime-local</span> <input type=datetime-local value="2020-01-01T00:00"></td></tr>
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<tr><td><span>number</span> <input type=number value=0></td></tr>
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<tr><td><span>range</span> <input type=range></td></tr>
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<tr><td><span>color</span> <input type=color value=#000000></td></tr>
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<tr><td><span>checkbox</span> <input type=checkbox></td></tr>
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<tr><td><span>radio</span> <input type=radio></td></tr>
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<tr><td><span>file</span> <input type=file></td></tr>
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<tr><td><span>submit</span> <input type=submit value=x></td></tr>
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<tr><td><span>image</span> <input type=image src="data:,broken" alt="x"></td></tr>
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<tr><td><span>image-with-src</span> <input type=image src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAMCAIAAAD3UuoiAAAAGklEQVQoz2Nk%2BP%2BfgRqAiYFKYNSgUYOGp0EA%2BQMCFrJdTgsAAAAASUVORK5CYII%3D" alt="x"></td></tr>
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<tr><td><span>reset</span> <input type=reset value=x></td></tr>
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<tr><td><span>button</span> <input type=button value=x></td></tr>
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</table>
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<h2>tests</h2>
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<!--
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This table gets populated by the script.
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-->
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<table class="test" id="test-table"><tbody></tbody></table>
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<script>
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"use strict";
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promise_setup(async () => {
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const templateTable = document.querySelector('#template-table');
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const testTBody = document.querySelector('#test-table tbody');
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const templateRows = templateTable.querySelectorAll('tr');
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for (const templateRow of templateRows) {
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for (const appearanceValue of ["auto", "none"]) {
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for (const overflowValue of ['visible', 'hidden', 'scroll']) {
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const clonedRow = templateRow.cloneNode(true);
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clonedRow.querySelector('input').setAttribute('style', `overflow: ${overflowValue}; appearance: ${appearanceValue};`);
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testTBody.append(clonedRow);
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}
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}
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}
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// wait for images to load
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await new Promise(resolve => window.onload = e => resolve());
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for (const img of document.images) {
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assert_precondition(img.complete); // either error state or loaded
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}
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// get layout info from refs
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const refTextInputLikeOffsetTop = document.querySelector('.ref-text-input-like span').offsetTop;
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const refCheckboxInputAppearanceAutoLikeOffsetTop = document.querySelector('.ref-checkbox-input-appearance-auto-like span').offsetTop;
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const refColorInputLikeOffsetTop = document.querySelector('.ref-color-input-like span').offsetTop;
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const refFileInputLikeOffsetTop = document.querySelector('.ref-file-input-like span').offsetTop;
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const refImageInputShowingAltOverflowVisibleLikeOffsetTop = document.querySelector('.ref-image-input-showing-alt-overflow-visible-like span').offsetTop;
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const refImageInputShowingImageLikeOffsetTop = document.querySelector('.ref-image-input-showing-image-like span').offsetTop;
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function expectedOffsetTop(input) {
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// TODO(zcorpan) https://github.com/whatwg/html/issues/5065
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// for now this is intended to match Firefox
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const style = input.getAttribute('style');
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const src = input.getAttribute('src');
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switch (input.type) {
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case 'file':
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return refFileInputLikeOffsetTop;
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case 'range':
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return refImageInputShowingImageLikeOffsetTop;
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case 'color':
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return refColorInputLikeOffsetTop;
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case 'checkbox':
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case 'radio':
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return (style.includes('appearance: none;')) ? refImageInputShowingImageLikeOffsetTop : refCheckboxInputAppearanceAutoLikeOffsetTop;
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case 'image':
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return (src === 'data:,broken' && style.includes('overflow: visible;')) ? refImageInputShowingAltOverflowVisibleLikeOffsetTop : refImageInputShowingImageLikeOffsetTop;
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default:
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return refTextInputLikeOffsetTop;
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}
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}
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function testName(markup) {
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return markup.replace(/data:image\/png[^"]+/, 'data:(png)');
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}
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for (const row of testTBody.children) {
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const input = row.firstChild.lastElementChild;
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const allowedDelta = 3;
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// This is not using test() because promise_setup() only allows promise_test().
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promise_test(async () => {
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assert_precondition(input.type === input.getAttribute('type'), 'input type should be supported')
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const offsetTopActual = row.firstChild.firstChild.offsetTop;
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assert_approx_equals(offsetTopActual, expectedOffsetTop(input), allowedDelta, '<span>.offsetTop');
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}, testName(input.outerHTML));
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}
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});
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</script>
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