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<!DOCTYPE html>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=429547
-->
<head>
<title>aria-activedescendant focus tests</title>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css" />
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript"
src="../common.js"></script>
<script type="application/javascript"
src="../role.js"></script>
<script type="application/javascript"
src="../states.js"></script>
<script type="application/javascript"
src="../events.js"></script>
<script type="application/javascript">
let PromEvents = {};
Services.scriptloader.loadSubScript(
"chrome://mochitests/content/a11y/accessible/tests/mochitest/promisified-events.js",
PromEvents);
// gA11yEventDumpToConsole = true; // debugging
function changeARIAActiveDescendant(aContainer, aItem, aPrevItemId) {
let itemID = Node.isInstance(aItem) ? aItem.id : aItem;
this.eventSeq = [new focusChecker(aItem)];
if (aPrevItemId) {
this.eventSeq.push(
new stateChangeChecker(EXT_STATE_ACTIVE, true, false, aPrevItemId)
);
}
this.eventSeq.push(
new stateChangeChecker(EXT_STATE_ACTIVE, true, true, aItem)
);
this.invoke = function changeARIAActiveDescendant_invoke() {
getNode(aContainer).setAttribute("aria-activedescendant", itemID);
};
this.getID = function changeARIAActiveDescendant_getID() {
return "change aria-activedescendant on " + itemID;
};
}
function clearARIAActiveDescendant(aID, aPrevItemId) {
this.eventSeq = [
new focusChecker(aID),
];
if (aPrevItemId) {
this.eventSeq.push(
new stateChangeChecker(EXT_STATE_ACTIVE, true, false, aPrevItemId)
);
}
this.invoke = function clearARIAActiveDescendant_invoke() {
getNode(aID).removeAttribute("aria-activedescendant");
};
this.getID = function clearARIAActiveDescendant_getID() {
return "clear aria-activedescendant on container " + aID;
};
}
/**
* Change aria-activedescendant to an invalid (non-existent) id.
* Ensure that focus is fired on the element itself.
*/
function changeARIAActiveDescendantInvalid(aID, aInvalidID, aPrevItemId) {
if (!aInvalidID) {
aInvalidID = "invalid";
}
this.eventSeq = [
new focusChecker(aID),
];
if (aPrevItemId) {
this.eventSeq.push(
new stateChangeChecker(EXT_STATE_ACTIVE, true, false, aPrevItemId)
);
}
this.invoke = function changeARIAActiveDescendant_invoke() {
getNode(aID).setAttribute("aria-activedescendant", aInvalidID);
};
this.getID = function changeARIAActiveDescendant_getID() {
return "change aria-activedescendant to invalid id";
};
}
function insertItemNFocus(aID, aNewItemID, aPrevItemId) {
this.eventSeq = [
new invokerChecker(EVENT_SHOW, aNewItemID),
new focusChecker(aNewItemID),
];
if (aPrevItemId) {
this.eventSeq.push(
new stateChangeChecker(EXT_STATE_ACTIVE, true, false, aPrevItemId)
);
}
this.eventSeq.push(
new stateChangeChecker(EXT_STATE_ACTIVE, true, true, aNewItemID)
);
this.invoke = function insertItemNFocus_invoke() {
var container = getNode(aID);
var itemNode = document.createElement("div");
itemNode.setAttribute("id", aNewItemID);
itemNode.setAttribute("role", "listitem");
itemNode.textContent = aNewItemID;
container.appendChild(itemNode);
container.setAttribute("aria-activedescendant", aNewItemID);
};
this.getID = function insertItemNFocus_getID() {
return "insert new node and focus it with ID: " + aNewItemID;
};
}
/**
* Change the id of an element to another id which is the target of
* aria-activedescendant.
* If another element already has the desired id, remove it from that
* element first.
* Ensure that focus is fired on the target element which was given the
* desired id.
* @param aFromID The existing id of the target element.
* @param aToID The desired id to be given to the target element.
*/
function moveARIAActiveDescendantID(aFromID, aToID) {
this.eventSeq = [
new focusChecker(aToID),
new stateChangeChecker(EXT_STATE_ACTIVE, true, true, aToID),
];
this.invoke = function moveARIAActiveDescendantID_invoke() {
let orig = document.getElementById(aToID);
if (orig) {
orig.id = "";
}
document.getElementById(aFromID).id = aToID;
};
this.getID = function moveARIAActiveDescendantID_getID() {
return "move aria-activedescendant id " + aToID;
};
}
var gQueue = null;
async function doTest() {
gQueue = new eventQueue();
// Later tests use await.
let queueFinished = new Promise(resolve => {
gQueue.onFinish = function() {
resolve();
return DO_NOT_FINISH_TEST;
};
});
gQueue.push(new synthFocus("listbox", new focusChecker("item1")));
gQueue.push(new changeARIAActiveDescendant("listbox", "item2", "item1"));
gQueue.push(new changeARIAActiveDescendant("listbox", "item3", "item2"));
gQueue.push(new synthFocus("combobox_entry", new focusChecker("combobox_entry")));
gQueue.push(new changeARIAActiveDescendant("combobox", "combobox_option2"));
gQueue.push(new synthFocus("listbox", new focusChecker("item3")));
gQueue.push(new insertItemNFocus("listbox", "item4", "item3"));
gQueue.push(new clearARIAActiveDescendant("listbox", "item4"));
gQueue.push(new changeARIAActiveDescendant("listbox", "item1"));
gQueue.push(new changeARIAActiveDescendantInvalid("listbox", "invalid", "item1"));
gQueue.push(new changeARIAActiveDescendant("listbox", "roaming"));
gQueue.push(new moveARIAActiveDescendantID("roaming2", "roaming"));
gQueue.push(new changeARIAActiveDescendantInvalid("listbox", "roaming3", "roaming"));
gQueue.push(new moveARIAActiveDescendantID("roaming", "roaming3"));
gQueue.push(new synthFocus("activedesc_nondesc_input",
new focusChecker("activedesc_nondesc_option")));
let shadowRoot = document.getElementById("shadow").shadowRoot;
let shadowListbox = shadowRoot.getElementById("shadowListbox");
let shadowItem1 = shadowRoot.getElementById("shadowItem1");
let shadowItem2 = shadowRoot.getElementById("shadowItem2");
gQueue.push(new synthFocus(shadowListbox, new focusChecker(shadowItem1)));
gQueue.push(new changeARIAActiveDescendant(shadowListbox, shadowItem2));
gQueue.invoke();
await queueFinished;
// Tests beyond this point use await rather than eventQueue.
info("Testing simultaneous insertion, relocation and aria-activedescendant");
let comboboxWithHiddenList = getNode("comboboxWithHiddenList");
let evtProm = PromEvents.waitForEvent(EVENT_FOCUS, comboboxWithHiddenList);
comboboxWithHiddenList.focus();
await evtProm;
testStates(comboboxWithHiddenList, STATE_FOCUSED);
// hiddenList is owned, so unhiding causes insertion and relocation.
getNode("hiddenList").hidden = false;
evtProm = Promise.all([
PromEvents.waitForEvent(EVENT_FOCUS, "hiddenListOption"),
PromEvents.waitForStateChange("hiddenListOption", EXT_STATE_ACTIVE, true, true),
]);
comboboxWithHiddenList.setAttribute("aria-activedescendant", "hiddenListOption");
await evtProm;
testStates("hiddenListOption", STATE_FOCUSED);
info("Testing active state changes when not focused");
testStates("listbox", 0, 0, STATE_FOCUSED);
evtProm = Promise.all([
PromEvents.waitForStateChange("roaming3", EXT_STATE_ACTIVE, false, true),
PromEvents.waitForStateChange("item1", EXT_STATE_ACTIVE, true, true),
]);
getNode("listbox").setAttribute("aria-activedescendant", "item1");
await evtProm;
info("Testing that focus is always fired first");
const listbox = getNode("listbox");
evtProm = PromEvents.waitForEvent(EVENT_FOCUS, "item1");
listbox.focus();
await evtProm;
const item1 = getNode("item1");
evtProm = PromEvents.waitForOrderedEvents([
[EVENT_FOCUS, "item2"],
[EVENT_NAME_CHANGE, item1],
], "Focus then name change");
item1.setAttribute("aria-label", "changed");
listbox.setAttribute("aria-activedescendant", "item2");
await evtProm;
info("Setting aria-activedescendant to invalid id on non-focused node");
const combobox_entry = getNode("combobox_entry");
evtProm = PromEvents.waitForEvents({
expected: [[EVENT_FOCUS, combobox_entry]],
unexpected: [[EVENT_FOCUS, listbox]],
});
combobox_entry.focus();
listbox.setAttribute("aria-activedescendant", "invalid");
await evtProm;
SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
addA11yLoadEvent(doTest);
</script>
</head>
<body>
<a target="_blank"
href="https://bugzilla.mozilla.org/show_bug.cgi?id=429547"
title="Support aria-activedescendant usage in nsIAccesible::TakeFocus()">
Mozilla Bug 429547
</a>
<a target="_blank"
href="https://bugzilla.mozilla.org/show_bug.cgi?id=761102"
title="Focus may be missed when ARIA active-descendant is changed on active composite widget">
Mozilla Bug 761102
</a>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test">
</pre>
<div role="listbox" aria-activedescendant="item1" id="listbox" tabindex="1"
aria-owns="item3">
<div role="listitem" id="item1">item1</div>
<div role="listitem" id="item2">item2</div>
<div role="listitem" id="roaming">roaming</div>
<div role="listitem" id="roaming2">roaming2</div>
</div>
<div role="listitem" id="item3">item3</div>
<div role="combobox" id="combobox">
<input id="combobox_entry">
<ul>
<li role="option" id="combobox_option1">option1</li>
<li role="option" id="combobox_option2">option2</li>
</ul>
</div>
<!-- aria-activedescendant targeting a non-descendant -->
<input id="activedesc_nondesc_input" aria-activedescendant="activedesc_nondesc_option">
<div role="listbox">
<div role="option" id="activedesc_nondesc_option">option</div>
</div>
<div id="shadow"></div>
<script>
let host = document.getElementById("shadow");
let shadow = host.attachShadow({mode: "open"});
let listbox = document.createElement("div");
listbox.id = "shadowListbox";
listbox.setAttribute("role", "listbox");
listbox.setAttribute("tabindex", "0");
shadow.appendChild(listbox);
let item = document.createElement("div");
item.id = "shadowItem1";
item.setAttribute("role", "option");
listbox.appendChild(item);
listbox.setAttribute("aria-activedescendant", "shadowItem1");
item = document.createElement("div");
item.id = "shadowItem2";
item.setAttribute("role", "option");
listbox.appendChild(item);
</script>
<div id="comboboxWithHiddenList" tabindex="0" role="combobox" aria-owns="hiddenList">
</div>
<div id="hiddenList" hidden role="listbox">
<div id="hiddenListOption" role="option"></div>
</div>
</body>
</html>
|
