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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
/* import-globals-from ../../mochitest/role.js */
loadScripts({ name: "role.js", dir: MOCHITESTS_DIR });
const snippet = `
<style>
#target {
width: 150px;
height: 150px;
background-color: lightblue;
}
#child {
width: 100px;
height: 100px;
background-color: lightgreen;
}
#content-child {
width: 100px;
height: 100px;
background-color: green;
display: contents;
}
.hidden {
content-visibility: hidden;
}
.auto {
content-visibility: auto;
}
</style>
<div class="hidden" id="target">
<div id="child"></div>
<div id="content-child"></div>
</div>
`;
add_setup(async function () {
await SpecialPowers.pushPrefEnv({
set: [["layout.css.content-visibility.enabled", true]],
});
});
async function setContentVisibility(browser, id, value) {
let onReorder = waitForEvent(EVENT_REORDER, id);
// Change the value of `content-visibility` property for the target
info(`Setting content-visibility: ${value} on ${id}`);
await invokeSetAttribute(browser, id, "class", value);
await onReorder;
}
addAccessibleTask(
snippet,
async function (browser, accDoc) {
const targetId = "target";
const target = findAccessibleChildByID(accDoc, targetId);
info("Initial Accessibility Structure Test");
testAccessibleTree(target, { SECTION: [] });
await setContentVisibility(browser, targetId, "auto");
testAccessibleTree(target, { SECTION: [{ SECTION: [] }, { SECTION: [] }] });
await setContentVisibility(browser, targetId, "hidden");
testAccessibleTree(target, { SECTION: [] });
},
{ iframe: true, remoteIframe: true, chrome: true }
);
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