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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Tests that the grid area and cell are highlighted when hovering over a grid area in the
// grid outline.
const TEST_URI = `
<style type='text/css'>
#grid {
display: grid;
grid-template-areas:
"header"
"footer";
}
.top {
grid-area: header;
}
.bottom {
grid-area: footer;
}
</style>
<div id="grid">
<div id="cella" className="top">Cell A</div>
<div id="cellb" className="bottom">Cell B</div>
</div>
`;
add_task(async function () {
await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
const { inspector, gridInspector } = await openLayoutView();
const { document: doc } = gridInspector;
const { store } = inspector;
const HIGHLIGHTER_TYPE = inspector.highlighters.TYPES.GRID;
const { waitForHighlighterTypeShown } = getHighlighterTestHelpers(inspector);
const gridList = doc.getElementById("grid-list");
const checkbox = gridList.children[0].querySelector("input");
info("Toggling ON the CSS grid highlighter from the layout panel.");
const onHighlighterShown = waitForHighlighterTypeShown(HIGHLIGHTER_TYPE);
const onGridOutlineRendered = waitForDOM(doc, "#grid-cell-group rect", 2);
const onCheckboxChange = waitUntilState(
store,
state => state.grids.length == 1 && state.grids[0].highlighted
);
checkbox.click();
info("Wait for checkbox to change");
await onCheckboxChange;
info("Wait for highlighter to be shown");
await onHighlighterShown;
info("Wait for outline to be rendered");
await onGridOutlineRendered;
info("Hovering over grid cell A in the grid outline.");
const onCellAHighlight = waitForHighlighterTypeShown(HIGHLIGHTER_TYPE);
synthesizeMouseOverOnGridCell(doc, 0);
const { options } = await onCellAHighlight;
info(
"Checking the grid highlighter options for the show grid area and cell parameters."
);
const { showGridCell, showGridArea } = options;
const { gridFragmentIndex, rowNumber, columnNumber } = showGridCell;
is(gridFragmentIndex, "0", "Should be the first grid fragment index.");
is(rowNumber, "1", "Should be the first grid row.");
is(columnNumber, "1", "Should be the first grid column.");
is(showGridArea, "header", "Grid area name should be 'header'.");
});