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+<html>
+
+<head>
+ <title>Accessible description change event testing</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 src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
+
+ <script type="application/javascript"
+ src="../common.js"></script>
+ <script type="application/javascript"
+ src="../events.js"></script>
+ <script type="application/javascript"
+ src="../role.js"></script>
+ <script type="application/javascript"
+ src="../states.js"></script>
+
+ <script type="application/javascript">
+ let PromEvents = {};
+ Services.scriptloader.loadSubScript(
+ "chrome://mochitests/content/a11y/accessible/tests/mochitest/promisified-events.js",
+ PromEvents);
+
+ // //////////////////////////////////////////////////////////////////////////
+ // Invokers
+
+ function setAttr(aID, aAttr, aValue, aChecker) {
+ this.eventSeq = [ aChecker ];
+ this.invoke = function setAttr_invoke() {
+ getNode(aID).setAttribute(aAttr, aValue);
+ };
+
+ this.getID = function setAttr_getID() {
+ return "set attr '" + aAttr + "', value '" + aValue + "'";
+ };
+ }
+
+ // //////////////////////////////////////////////////////////////////////////
+ // Do tests
+
+ // gA11yEventDumpToConsole = true; // debuggin
+
+ var gQueue = null;
+ async function doTests() {
+ gQueue = new eventQueue();
+ // Later tests use await.
+ let queueFinished = new Promise(resolve => {
+ gQueue.onFinish = function() {
+ resolve();
+ return DO_NOT_FINISH_TEST;
+ };
+ });
+
+ gQueue.push(new setAttr("tst1", "aria-describedby", "display",
+ new invokerChecker(EVENT_DESCRIPTION_CHANGE, "tst1")));
+ gQueue.push(new setAttr("tst1", "title", "title",
+ new unexpectedInvokerChecker(EVENT_DESCRIPTION_CHANGE, "tst1")));
+
+ // A title has lower priority over text content. There should be no name change event.
+ gQueue.push(new setAttr("tst2", "title", "title",
+ new unexpectedInvokerChecker(EVENT_NAME_CHANGE, "tst2")));
+
+ gQueue.invoke();
+ await queueFinished;
+ // Tests beyond this point use await rather than eventQueue.
+
+ const describedBy = getNode("describedBy");
+ const description = getNode("description");
+ let descChanged = PromEvents.waitForEvent(
+ EVENT_DESCRIPTION_CHANGE,
+ describedBy
+ );
+ info("Changing text of aria-describedby target");
+ description.textContent = "d2";
+ await descChanged;
+ descChanged = PromEvents.waitForEvent(
+ EVENT_DESCRIPTION_CHANGE,
+ describedBy
+ );
+ info("Adding node to aria-describedby target");
+ description.innerHTML = '<p id="descriptionChild">d3</p>';
+ await descChanged;
+ descChanged = PromEvents.waitForEvent(
+ EVENT_DESCRIPTION_CHANGE,
+ describedBy
+ );
+ info("Changing text of aria-describedby target's child");
+ getNode("descriptionChild").textContent = "d4";
+ await descChanged;
+
+ const lateDescribedBy = getNode("lateDescribedBy");
+ descChanged = PromEvents.waitForEvent(
+ EVENT_DESCRIPTION_CHANGE,
+ lateDescribedBy
+ );
+ info("Setting aria-describedby");
+ lateDescribedBy.setAttribute("aria-describedby", "lateDescription");
+ await descChanged;
+ descChanged = PromEvents.waitForEvent(
+ EVENT_DESCRIPTION_CHANGE,
+ lateDescribedBy
+ );
+ info("Changing text of late aria-describedby target's child");
+ getNode("lateDescriptionChild").textContent = "d2";
+ await descChanged;
+
+ SimpleTest.finish();
+ }
+
+ SimpleTest.waitForExplicitFinish();
+ addA11yLoadEvent(doTests);
+ </script>
+</head>
+
+<body>
+
+ <a target="_blank"
+ href="https://bugzilla.mozilla.org/show_bug.cgi?id=991969"
+ title="Event not fired when description changes">
+ Bug 991969
+ </a>
+
+ <p id="display"></p>
+ <div id="content" style="display: none"></div>
+ <pre id="test">
+ </pre>
+
+ <button id="tst1">btn1</button>
+ <button id="tst2">btn2</button>
+
+ <div id="describedBy" aria-describedby="description"></div>
+ <div id="description">d1</div>
+
+ <div id="lateDescribedBy"></div>
+ <div id="lateDescription"><p id="lateDescriptionChild">d1</p></div>
+
+ <div id="eventdump"></div>
+</body>
+</html>