Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-grid/placement/grid-auto-placement-order-change-001.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<meta name="assert" content="Dynamically changing the 'order' property of grid items re-runs the auto-placement algorithm, which processes items in order-modified document order.">
<link rel="stylesheet" href="/css/support/grid.css">
<link rel="stylesheet" href="/fonts/ahem.css">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<style>
.grid {
grid-auto-flow: row;
grid-template-rows: 50px 100px;
grid-template-columns: 40px;
}
#firstGridItem {
grid-row: auto;
grid-column: 1;
}
#secondGridItem {
grid-row: 1;
grid-column: auto;
}
#thirdGridItem {
grid-row: auto;
grid-column: auto;
}
</style>
<script>
function testGridItemsOrder(firstGridItemData, secondGridItemData, thirdGridItemData)
{
var firstGridItem = document.getElementById("firstGridItem");
firstGridItem.style.order = firstGridItemData.order;
firstGridItem.setAttribute("data-expected-width", firstGridItemData.width);
firstGridItem.setAttribute("data-expected-height", firstGridItemData.height);
firstGridItem.setAttribute("data-offset-x", firstGridItemData.x);
firstGridItem.setAttribute("data-offset-y", firstGridItemData.y);
var secondGridItem = document.getElementById("secondGridItem");
secondGridItem.style.order = secondGridItemData.order;
secondGridItem.setAttribute("data-expected-width", secondGridItemData.width);
secondGridItem.setAttribute("data-expected-height", secondGridItemData.height);
secondGridItem.setAttribute("data-offset-x", secondGridItemData.x);
secondGridItem.setAttribute("data-offset-y", secondGridItemData.y);
var thirdGridItem = document.getElementById("thirdGridItem");
thirdGridItem.style.order = thirdGridItemData.order;
thirdGridItem.setAttribute("data-expected-width", thirdGridItemData.width);
thirdGridItem.setAttribute("data-expected-height", thirdGridItemData.height);
thirdGridItem.setAttribute("data-offset-x", thirdGridItemData.x);
thirdGridItem.setAttribute("data-offset-y", thirdGridItemData.y);
checkLayout(".grid", false);
}
function testChangingGridItemsOrder()
{
testGridItemsOrder({ 'order': '0', 'width': '40', 'height': '100', 'x': '0', 'y': '50' }, { 'order': '0', 'width': '40', 'height': '50', 'x': '0', 'y': '0' }, { 'order': '0', 'width': '40', 'height': '0', 'x': '0', 'y': '150' });
testGridItemsOrder({ 'order': '0', 'width': '40', 'height': '100', 'x': '0', 'y': '50' }, { 'order': '-1', 'width': '40', 'height': '50', 'x': '0', 'y': '0' }, { 'order': '0', 'width': '40', 'height': '0', 'x': '0', 'y': '150' });
testGridItemsOrder({ 'order': '1', 'width': '40', 'height': '0', 'x': '0', 'y': '150' }, { 'order': '-1', 'width': '40', 'height': '50', 'x': '0', 'y': '0' }, { 'order': '0', 'width': '40', 'height': '100', 'x': '0', 'y': '50' });
testGridItemsOrder({ 'order': '1', 'width': '40', 'height': '100', 'x': '0', 'y': '50' }, { 'order': '-1', 'width': '40', 'height': '50', 'x': '0', 'y': '0' }, { 'order': '10', 'width': '40', 'height': '0', 'x': '0', 'y': '150' });
}
</script>
<body onload="document.fonts.ready.then(() => { testChangingGridItemsOrder(); done(); })">
<div>This test checks that dynamic changes to grid items' 'order' recompute the positions of automatically placed grid items.</div>
<div style="position: relative">
<div class="grid">
<div class="sizedToGridArea" id="firstGridItem"></div>
<div class="sizedToGridArea" id="secondGridItem"></div>
<div class="sizedToGridArea" id="thirdGridItem"></div>
</div>
</div>
</body>