forked from mirrors/gecko-dev
d703d5215e
Automatic update from web-platform-tests Remove 'font-size: 0' from some css-flexbox scrollbars reference cases. (#31865) The zero font-size is essentially non-functional, but it causes a slight rendering difference in Firefox's scrollbar-thumb-sizing (and results in a test failure), for what turns out to be good reasons: Essentially, the scrollbar thumb is a reflection of the pagedown-distance; and in Firefox, we use a slightly-larger pagedown-distance if the scrollport has a sufficiently-small font size, because we only aim to have a few lines of overlap between the old and new scrollport during a pagedown operation. And "a few lines of overlap" is based on the scrollport's font-size. So the pagedown-distance is dependent on the font-size, and therefore so is the scrollbar thumb size. (See https://bugzilla.mozilla.org/show_bug.cgi?id=1743924#c9 for more.) -- wpt-commits: fe3d72be65dc9e592c94051a885511ee37b65880 wpt-pr: 31865
138 lines
3.5 KiB
HTML
138 lines
3.5 KiB
HTML
<!DOCTYPE html>
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<head>
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<script src="support/scrollbars.js"></script>
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<style>
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.horizontal-header {
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width: 120px;
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}
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.vertical-header {
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width: 60px;
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}
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.container-row {
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display: flex;
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flex-direction: row;
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align-items: flex-start;
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justify-content: flex-start;
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}
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.container {
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flex: none;
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margin: 5px;
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}
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.ltr {
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direction: ltr;
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}
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.rtl {
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direction: rtl;
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}
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.horizontal {
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writing-mode: horizontal-tb;
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}
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.flipped-blocks {
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writing-mode: vertical-rl;
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}
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.flipped-lines {
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writing-mode: vertical-lr;
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}
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.flex {
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border: 2px solid red;
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overflow: scroll;
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max-width: 100px;
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max-height: 100px;
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white-space: nowrap;
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}
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.row > div, .row-reverse > div {
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display: inline-flex;
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margin: 3px;
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}
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.column > div, .column-reverse > div {
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display: flex;
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margin: 3px;
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}
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/* Adjust margins to account for collapsing. */
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.horizontal > .column > .leaf1, .horizontal > .column > .leaf2 {
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margin: 3px 3px 6px 3px;
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}
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.flipped-blocks > .column > .leaf1, .flipped-blocks > .column > .leaf2 {
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margin: 3px 3px 3px 6px;
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}
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.flipped-lines > .column > .leaf1, .flipped-lines > .column > .leaf2 {
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margin: 3px 6px 3px 3px;
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}
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.horizontal > .column-reverse > .leaf1, .horizontal > .column-reverse > .leaf2 {
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margin: 6px 3px 3px 3px;
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}
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.flipped-blocks > .column-reverse > .leaf1, .flipped-blocks > .column-reverse > .leaf2 {
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margin: 3px 6px 3px 3px;
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}
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.flipped-lines > .column-reverse > .leaf1, .flipped-lines > .column-reverse > .leaf2 {
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margin: 3px 3px 3px 6px;
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}
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.flex > div {
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width: 30px;
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height: 30px;
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border: 2px solid blue;
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flex-direction: column;
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justify-content: center;
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}
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.flex > div > div {
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font-size: 20px;
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text-align: center;
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flex: none;
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}
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</style>
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</head>
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<div class="container-row">
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<div class="vertical-header ltr horizontal"></div>
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<div class="horizontal-header ltr horizontal">ltr<br>horizontal-tb</div>
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<div class="vertical-header ltr flipped-blocks">ltr<br>vertical-rl</div>
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<div class="vertical-header ltr flipped-blocks">ltr<br>vertical-lr</div>
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<div class="horizontal-header rtl horizontal">rtl<br>horizontal-tb</div>
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<div class="vertical-header rtl flipped-blocks">rtl<br>vertical-rl</div>
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<div class="vertical-header rtl flipped-blocks">rtl<br>vertical-lr</div>
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</div>
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<script>
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// Override createContentNode to emulate reverse flow direction.
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createContentNode = (flexDirection, textDirection, writingMode) => {
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var flexNode = document.createElement("div");
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flexNode.className = "flex " + flexDirection;
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flexNode.title = "flex-direction: " + flexDirection + "; direction: " + textDirection + "; writing-mode: " + writingMode;
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for (var i = 1; i < 4; i++)
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flexNode.appendChild(createLeafNode(flexDirection.endsWith("reverse") ? 4 - i : i));
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return flexNode;
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}
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flexDirections.forEach((flexDirection) => {
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var containerRow = createContainerRow(flexDirection);
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document.body.appendChild(containerRow);
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});
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// Scroll all flex containers to the emulated beginning of flow.
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var nodes = document.querySelectorAll(".ltr > .row-reverse");
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for (var i = 0; i < nodes.length; i++) {
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nodes[i].scrollLeft = 10000;
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nodes[i].scrollTop = 10000;
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}
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nodes = document.querySelectorAll(".rtl > .row-reverse");
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for (var i = 0; i < nodes.length; i++) {
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nodes[i].scrollLeft = -10000;
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nodes[i].scrollTop = -10000;
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}
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nodes = document.querySelectorAll(".column-reverse");
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for (var i = 0; i < nodes.length; i++) {
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nodes[i].scrollLeft = 10000;
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nodes[i].scrollTop = 10000;
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}
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nodes = document.querySelectorAll(".flipped-blocks > .column-reverse");
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for (var i = 0; i < nodes.length; i++) {
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nodes[i].scrollLeft = -10000;
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nodes[i].scrollTop = 0;
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}
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</script>
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