mozilla-central/testing/web-platform/tests/css/css-grid/grid-definition/grid-change-intrinsic-size-with-auto-repeat-tracks-001.html

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<!DOCTYPE html>
<title>CSS Grid: auto-repeat tracks and intrinsic sizes.</title>
<link rel="author" title="Sergio Villar" href="mailto:svillar@igalia.com"/>
<meta name="assert" content="Test ensure that grids properly recompute the number of auto repeat tracks when the min|max-content contributions of grid items changed."/>
<link rel="issue" href="https://crbug.com/621517"/>
<link rel="issue" href="https://crbug.com/633474"/>
<link href="/css/support/grid.css" rel="stylesheet"/>
<link href="/css/support/width-keyword-classes.css" rel="stylesheet"/>
<style>
.grid {
border: 2px solid black;
position: relative;
min-width: 30px;
grid-auto-columns: 20px;
padding-top: 10px;
margin-bottom: 10px;
}
.abs { height: 5px; position: absolute; width: 100%; }
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script>
function setGridTemplate(id, gridTemplateRows, gridTemplateColumns)
{
var gridElement = document.getElementById(id);
gridElement.style.gridTemplateRows = gridTemplateRows;
gridElement.style.gridTemplateColumns = gridTemplateColumns;
}
function setItemSize(id, width, height)
{
var gridElement = document.getElementById(id);
gridElement.style.width = width;
gridElement.style.height = height;
}
function testGridDefinitions(gridItemsData)
{
var length = gridItemsData.length;
for (i = 0; i < length; ++i) {
var item = document.getElementById(gridItemsData[i].id);
item.setAttribute("data-expected-width", gridItemsData[i].width);
item.setAttribute("data-expected-height", gridItemsData[i].height);
item.setAttribute("data-offset-x", gridItemsData[i].x);
item.setAttribute("data-offset-y", gridItemsData[i].y);
}
checkLayout(".grid", false);
}
function testChangingGridDefinitions()
{
setGridTemplate('grid1', 'none', 'repeat(auto-fill, 20px) minmax(min-content, 40px)');
setItemSize('item', '100px', '30px');
testGridDefinitions([
{ 'id': 'item', 'width': '100', 'height': '30', 'x': '0', 'y': '10' },
{ 'id': 'a1', 'width': '20', 'height': '5', 'x': '0', 'y': '0' },
{ 'id': 'a2', 'width': '20', 'height': '5', 'x': '20', 'y': '0' },
{ 'id': 'a3', 'width': '20', 'height': '5', 'x': '40', 'y': '0' },
{ 'id': 'a4', 'width': '40', 'height': '5', 'x': '60', 'y': '0' }
]);
setItemSize('item', '80px', '30px');
testGridDefinitions([
{ 'id': 'item', 'width': '80', 'height': '30', 'x': '0', 'y': '10' },
{ 'id': 'a1', 'width': '20', 'height': '5', 'x': '0', 'y': '0' },
{ 'id': 'a2', 'width': '20', 'height': '5', 'x': '20', 'y': '0' },
{ 'id': 'a3', 'width': '40', 'height': '5', 'x': '40', 'y': '0' },
{ 'id': 'a4', 'width': '0', 'height': '5', 'x': '80', 'y': '0' }
]);
setItemSize('item', '15px', '30px');
testGridDefinitions([
{ 'id': 'item', 'width': '15', 'height': '30', 'x': '0', 'y': '10' },
{ 'id': 'a1', 'width': '20', 'height': '5', 'x': '0', 'y': '0' },
{ 'id': 'a2', 'width': '40', 'height': '5', 'x': '20', 'y': '0' },
{ 'id': 'a3', 'width': '0', 'height': '5', 'x': '60', 'y': '0' },
{ 'id': 'a4', 'width': '60', 'height': '5', 'x': '0', 'y': '0' }
]);
setItemSize('item', '120px', '30px');
testGridDefinitions([
{ 'id': 'item', 'width': '120', 'height': '30', 'x': '0', 'y': '10' },
{ 'id': 'a1', 'width': '20', 'height': '5', 'x': '0', 'y': '0' },
{ 'id': 'a2', 'width': '20', 'height': '5', 'x': '20', 'y': '0' },
{ 'id': 'a3', 'width': '20', 'height': '5', 'x': '40', 'y': '0' },
{ 'id': 'a4', 'width': '20', 'height': '5', 'x': '60', 'y': '0' }
]);
var grid = document.getElementById('grid1');
grid.className = grid.className.replace('max-content', 'min-content');
setItemSize('item', '100px', '30px');
testGridDefinitions([
{ 'id': 'item', 'width': '100', 'height': '30', 'x': '0', 'y': '10' },
{ 'id': 'a1', 'width': '20', 'height': '5', 'x': '0', 'y': '0' },
{ 'id': 'a2', 'width': '20', 'height': '5', 'x': '20', 'y': '0' },
{ 'id': 'a3', 'width': '20', 'height': '5', 'x': '40', 'y': '0' },
{ 'id': 'a4', 'width': '40', 'height': '5', 'x': '60', 'y': '0' }
]);
setItemSize('item', '80px', '30px');
testGridDefinitions([
{ 'id': 'item', 'width': '80', 'height': '30', 'x': '0', 'y': '10' },
{ 'id': 'a1', 'width': '20', 'height': '5', 'x': '0', 'y': '0' },
{ 'id': 'a2', 'width': '20', 'height': '5', 'x': '20', 'y': '0' },
{ 'id': 'a3', 'width': '40', 'height': '5', 'x': '40', 'y': '0' },
{ 'id': 'a4', 'width': '0', 'height': '5', 'x': '80', 'y': '0' }
]);
setItemSize('item', '15px', '30px');
testGridDefinitions([
{ 'id': 'item', 'width': '15', 'height': '30', 'x': '0', 'y': '10' },
{ 'id': 'a1', 'width': '20', 'height': '5', 'x': '0', 'y': '0' },
{ 'id': 'a2', 'width': '10', 'height': '5', 'x': '20', 'y': '0' },
{ 'id': 'a3', 'width': '0', 'height': '5', 'x': '30', 'y': '0' },
{ 'id': 'a4', 'width': '30', 'height': '5', 'x': '0', 'y': '0' }
]);
setItemSize('item', '120px', '30px');
testGridDefinitions([
{ 'id': 'item', 'width': '120', 'height': '30', 'x': '0', 'y': '10' },
{ 'id': 'a1', 'width': '20', 'height': '5', 'x': '0', 'y': '0' },
{ 'id': 'a2', 'width': '20', 'height': '5', 'x': '20', 'y': '0' },
{ 'id': 'a3', 'width': '20', 'height': '5', 'x': '40', 'y': '0' },
{ 'id': 'a4', 'width': '20', 'height': '5', 'x': '60', 'y': '0' }
]);
done();
}
window.addEventListener("load", testChangingGridDefinitions, false);
</script>
<div>This test checks that changing the min|max-content contributions of grid items properly recomputes both track sizes and grid positions in grids with auto repeat tracks.</div>
<div id="log"></div>
<div id="grid1" class="grid max-content">
<div id="item" style="grid-column: 1 / -1; background: cyan;"></div>
<div id="a1" class="abs" style="grid-column: 1 / 2; background: purple;"></div>
<div id="a2" class="abs" style="grid-column: 2 / 3; background: orange;"></div>
<div id="a3" class="abs" style="grid-column: 3 / 4; background: yellow;"></div>
<div id="a4" class="abs" style="grid-column: 4 / 5; background: magenta;"></div>
</div>