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+<html>
+
+<head>
+ <title>Accessible mutation events testing</title>
+
+ <link rel="stylesheet" type="text/css"
+ href="chrome://mochikit/content/tests/SimpleTest/test.css" />
+
+ <style>
+ div.displayNone a { display:none; }
+ div.visibilityHidden a { visibility:hidden; }
+</style>
+
+ <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">
+ /**
+ * Invokers.
+ */
+ var kNoEvents = 0;
+
+ var kShowEvent = 1;
+ var kHideEvent = 2;
+ var kReorderEvent = 4;
+ var kShowEvents = kShowEvent | kReorderEvent;
+ var kHideEvents = kHideEvent | kReorderEvent;
+ var kHideAndShowEvents = kHideEvents | kShowEvent;
+
+ /**
+ * Base class to test mutation a11y events.
+ *
+ * @param aNodeOrID [in] node invoker's action is executed for
+ * @param aEventTypes [in] events to register (see constants above)
+ * @param aDoNotExpectEvents [in] boolean indicates if events are expected
+ */
+ function mutateA11yTree(aNodeOrID, aEventTypes, aDoNotExpectEvents) {
+ // Interface
+ this.DOMNode = getNode(aNodeOrID);
+ this.doNotExpectEvents = aDoNotExpectEvents;
+ this.eventSeq = [];
+ this.unexpectedEventSeq = [];
+
+ /**
+ * Change default target (aNodeOrID) registered for the given event type.
+ */
+ this.setTarget = function mutateA11yTree_setTarget(aEventType, aTarget) {
+ var type = this.getA11yEventType(aEventType);
+ for (var idx = 0; idx < this.getEventSeq().length; idx++) {
+ if (this.getEventSeq()[idx].type == type) {
+ this.getEventSeq()[idx].target = aTarget;
+ return idx;
+ }
+ }
+ return -1;
+ };
+
+ /**
+ * Replace the default target currently registered for a given event type
+ * with the nodes in the targets array.
+ */
+ this.setTargets = function mutateA11yTree_setTargets(aEventType, aTargets) {
+ var targetIdx = this.setTarget(aEventType, aTargets[0]);
+
+ var type = this.getA11yEventType(aEventType);
+ for (var i = 1; i < aTargets.length; i++) {
+ let checker = new invokerChecker(type, aTargets[i]);
+ this.getEventSeq().splice(++targetIdx, 0, checker);
+ }
+ };
+
+ // Implementation
+ this.getA11yEventType = function mutateA11yTree_getA11yEventType(aEventType) {
+ if (aEventType == kReorderEvent)
+ return nsIAccessibleEvent.EVENT_REORDER;
+
+ if (aEventType == kHideEvent)
+ return nsIAccessibleEvent.EVENT_HIDE;
+
+ if (aEventType == kShowEvent)
+ return nsIAccessibleEvent.EVENT_SHOW;
+
+ return 0;
+ };
+
+ this.getEventSeq = function mutateA11yTree_getEventSeq() {
+ return this.doNotExpectEvents ? this.unexpectedEventSeq : this.eventSeq;
+ };
+
+ if (aEventTypes & kHideEvent) {
+ let checker = new invokerChecker(this.getA11yEventType(kHideEvent),
+ this.DOMNode);
+ this.getEventSeq().push(checker);
+ }
+
+ if (aEventTypes & kShowEvent) {
+ let checker = new invokerChecker(this.getA11yEventType(kShowEvent),
+ this.DOMNode);
+ this.getEventSeq().push(checker);
+ }
+
+ if (aEventTypes & kReorderEvent) {
+ let checker = new invokerChecker(this.getA11yEventType(kReorderEvent),
+ this.DOMNode.parentNode);
+ this.getEventSeq().push(checker);
+ }
+ }
+
+ /**
+ * Change CSS style for the given node.
+ */
+ function changeStyle(aNodeOrID, aProp, aValue, aEventTypes) {
+ this.__proto__ = new mutateA11yTree(aNodeOrID, aEventTypes, false);
+
+ this.invoke = function changeStyle_invoke() {
+ this.DOMNode.style[aProp] = aValue;
+ };
+
+ this.getID = function changeStyle_getID() {
+ return aNodeOrID + " change style " + aProp + " on value " + aValue;
+ };
+ }
+
+ /**
+ * Change class name for the given node.
+ */
+ function changeClass(aParentNodeOrID, aNodeOrID, aClassName, aEventTypes) {
+ this.__proto__ = new mutateA11yTree(aNodeOrID, aEventTypes, false);
+
+ this.invoke = function changeClass_invoke() {
+ this.parentDOMNode.className = aClassName;
+ };
+
+ this.getID = function changeClass_getID() {
+ return aNodeOrID + " change class " + aClassName;
+ };
+
+ this.parentDOMNode = getNode(aParentNodeOrID);
+ }
+
+ /**
+ * Clone the node and append it to its parent.
+ */
+ function cloneAndAppendToDOM(aNodeOrID, aEventTypes,
+ aTargetsFunc, aReorderTargetFunc) {
+ var eventTypes = aEventTypes || kShowEvents;
+ var doNotExpectEvents = (aEventTypes == kNoEvents);
+
+ this.__proto__ = new mutateA11yTree(aNodeOrID, eventTypes,
+ doNotExpectEvents);
+
+ this.invoke = function cloneAndAppendToDOM_invoke() {
+ var newElm = this.DOMNode.cloneNode(true);
+ newElm.removeAttribute("id");
+
+ var targets = aTargetsFunc ?
+ aTargetsFunc(newElm) : [newElm];
+ this.setTargets(kShowEvent, targets);
+
+ if (aReorderTargetFunc) {
+ var reorderTarget = aReorderTargetFunc(this.DOMNode);
+ this.setTarget(kReorderEvent, reorderTarget);
+ }
+
+ this.DOMNode.parentNode.appendChild(newElm);
+ };
+
+ this.getID = function cloneAndAppendToDOM_getID() {
+ return aNodeOrID + " clone and append to DOM.";
+ };
+ }
+
+ /**
+ * Removes the node from DOM.
+ */
+ function removeFromDOM(aNodeOrID, aEventTypes,
+ aTargetsFunc, aReorderTargetFunc) {
+ var eventTypes = aEventTypes || kHideEvents;
+ var doNotExpectEvents = (aEventTypes == kNoEvents);
+
+ this.__proto__ = new mutateA11yTree(aNodeOrID, eventTypes,
+ doNotExpectEvents);
+
+ this.invoke = function removeFromDOM_invoke() {
+ this.DOMNode.remove();
+ };
+
+ this.getID = function removeFromDOM_getID() {
+ return prettyName(aNodeOrID) + " remove from DOM.";
+ };
+
+ if (aTargetsFunc && (eventTypes & kHideEvent))
+ this.setTargets(kHideEvent, aTargetsFunc(this.DOMNode));
+
+ if (aReorderTargetFunc && (eventTypes & kReorderEvent))
+ this.setTarget(kReorderEvent, aReorderTargetFunc(this.DOMNode));
+ }
+
+ /**
+ * Clone the node and replace the original node by cloned one.
+ */
+ function cloneAndReplaceInDOM(aNodeOrID) {
+ this.__proto__ = new mutateA11yTree(aNodeOrID, kHideAndShowEvents,
+ false);
+
+ this.invoke = function cloneAndReplaceInDOM_invoke() {
+ this.DOMNode.parentNode.replaceChild(this.newElm, this.DOMNode);
+ };
+
+ this.getID = function cloneAndReplaceInDOM_getID() {
+ return aNodeOrID + " clone and replace in DOM.";
+ };
+
+ this.newElm = this.DOMNode.cloneNode(true);
+ this.newElm.removeAttribute("id");
+ this.setTarget(kShowEvent, this.newElm);
+ }
+
+ /**
+ * Trigger content insertion (flush layout), removal and insertion of
+ * the same element for the same parent.
+ */
+ function test1(aContainerID) {
+ this.divNode = document.createElement("div");
+ this.divNode.setAttribute("id", "div-test1");
+ this.containerNode = getNode(aContainerID);
+
+ this.eventSeq = [
+ new invokerChecker(EVENT_SHOW, this.divNode),
+ new invokerChecker(EVENT_REORDER, this.containerNode),
+ ];
+
+ this.invoke = function test1_invoke() {
+ this.containerNode.appendChild(this.divNode);
+ getComputedStyle(this.divNode, "").color;
+ this.containerNode.removeChild(this.divNode);
+ this.containerNode.appendChild(this.divNode);
+ };
+
+ this.getID = function test1_getID() {
+ return "fuzzy test #1: content insertion (flush layout), removal and" +
+ "reinsertion";
+ };
+ }
+
+ /**
+ * Trigger content insertion (flush layout), removal and insertion of
+ * the same element for the different parents.
+ */
+ function test2(aContainerID, aTmpContainerID) {
+ this.divNode = document.createElement("div");
+ this.divNode.setAttribute("id", "div-test2");
+ this.containerNode = getNode(aContainerID);
+ this.tmpContainerNode = getNode(aTmpContainerID);
+ this.container = getAccessible(this.containerNode);
+ this.tmpContainer = getAccessible(this.tmpContainerNode);
+
+ this.eventSeq = [
+ new invokerChecker(EVENT_SHOW, this.divNode),
+ new invokerChecker(EVENT_REORDER, this.containerNode),
+ ];
+
+ this.unexpectedEventSeq = [
+ new invokerChecker(EVENT_REORDER, this.tmpContainerNode),
+ ];
+
+ this.invoke = function test2_invoke() {
+ this.tmpContainerNode.appendChild(this.divNode);
+ getComputedStyle(this.divNode, "").color;
+ this.tmpContainerNode.removeChild(this.divNode);
+ this.containerNode.appendChild(this.divNode);
+ };
+
+ this.getID = function test2_getID() {
+ return "fuzzy test #2: content insertion (flush layout), removal and" +
+ "reinsertion under another container";
+ };
+ }
+
+ /**
+ * Content insertion (flush layout) and then removal (nothing was changed).
+ */
+ function test3(aContainerID) {
+ this.divNode = document.createElement("div");
+ this.divNode.setAttribute("id", "div-test3");
+ this.containerNode = getNode(aContainerID);
+
+ this.unexpectedEventSeq = [
+ new invokerChecker(EVENT_SHOW, this.divNode),
+ new invokerChecker(EVENT_HIDE, this.divNode),
+ new invokerChecker(EVENT_REORDER, this.containerNode),
+ ];
+
+ this.invoke = function test3_invoke() {
+ this.containerNode.appendChild(this.divNode);
+ getComputedStyle(this.divNode, "").color;
+ this.containerNode.removeChild(this.divNode);
+ };
+
+ this.getID = function test3_getID() {
+ return "fuzzy test #3: content insertion (flush layout) and removal";
+ };
+ }
+
+ function insertReferredElm(aContainerID) {
+ this.containerNode = getNode(aContainerID);
+
+ this.eventSeq = [
+ new invokerChecker(EVENT_SHOW, function(aNode) { return aNode.firstChild; }, this.containerNode),
+ new invokerChecker(EVENT_SHOW, function(aNode) { return aNode.lastChild; }, this.containerNode),
+ new invokerChecker(EVENT_REORDER, this.containerNode),
+ ];
+
+ this.invoke = function insertReferredElm_invoke() {
+ let span = document.createElement("span");
+ span.setAttribute("id", "insertReferredElms_span");
+ let input = document.createElement("input");
+ input.setAttribute("aria-labelledby", "insertReferredElms_span");
+ this.containerNode.appendChild(span);
+ this.containerNode.appendChild(input);
+ };
+
+ this.getID = function insertReferredElm_getID() {
+ return "insert inaccessible element and then insert referring element to make it accessible";
+ };
+ }
+
+ function showHiddenParentOfVisibleChild() {
+ this.eventSeq = [
+ new invokerChecker(EVENT_HIDE, getNode("c4_child")),
+ new invokerChecker(EVENT_SHOW, getNode("c4_middle")),
+ new invokerChecker(EVENT_REORDER, getNode("c4")),
+ ];
+
+ this.invoke = function showHiddenParentOfVisibleChild_invoke() {
+ getNode("c4_middle").style.visibility = "visible";
+ };
+
+ this.getID = function showHiddenParentOfVisibleChild_getID() {
+ return "show hidden parent of visible child";
+ };
+ }
+
+ function hideNDestroyDoc() {
+ this.txt = null;
+ this.eventSeq = [
+ new invokerChecker(EVENT_HIDE, () => { return this.txt; }),
+ ];
+
+ this.invoke = function hideNDestroyDoc_invoke() {
+ this.txt = getAccessible("c5").firstChild.firstChild;
+ this.txt.DOMNode.remove();
+ };
+
+ this.check = function hideNDestroyDoc_check() {
+ getNode("c5").remove();
+ };
+
+ this.getID = function hideNDestroyDoc_getID() {
+ return "remove text node and destroy a document on hide event";
+ };
+ }
+
+ function hideHideNDestroyDoc() {
+ this.target = null;
+ this.eventSeq = [
+ new invokerChecker(EVENT_HIDE, () => { return this.target; }),
+ ];
+
+ this.invoke = function hideHideNDestroyDoc_invoke() {
+ var doc = getAccessible("c6").firstChild;
+ var l1 = doc.firstChild;
+ this.target = l1.firstChild;
+ var l2 = doc.lastChild;
+ l1.DOMNode.firstChild.remove();
+ l2.DOMNode.firstChild.remove();
+ };
+
+ this.check = function hideHideNDestroyDoc_check() {
+ getNode("c6").remove();
+ };
+
+ this.getID = function hideHideNDestroyDoc_getID() {
+ return "remove text nodes (2 events in the queue) and destroy a document on first hide event";
+ };
+ }
+
+ /**
+ * Target getters.
+ */
+ function getFirstChild(aNode) {
+ return [aNode.firstChild];
+ }
+ function getLastChild(aNode) {
+ return [aNode.lastChild];
+ }
+
+ function getNEnsureFirstChild(aNode) {
+ var node = aNode.firstChild;
+ getAccessible(node);
+ return [node];
+ }
+
+ function getNEnsureChildren(aNode) {
+ var children = [];
+ var node = aNode.firstChild;
+ do {
+ children.push(node);
+ getAccessible(node);
+ node = node.nextSibling;
+ } while (node);
+
+ return children;
+ }
+
+ function getParent(aNode) {
+ return aNode.parentNode;
+ }
+
+ // gA11yEventDumpToConsole = true; // debug stuff
+ // enableLogging("events,verbose");
+
+ /**
+ * Do tests.
+ */
+ var gQueue = null;
+
+ function doTests() {
+ gQueue = new eventQueue();
+
+ // Show/hide events by changing of display style of accessible DOM node
+ // from 'inline' to 'none', 'none' to 'inline'.
+ let id = "link1";
+ getAccessible(id); // ensure accessible is created
+ gQueue.push(new changeStyle(id, "display", "none", kHideEvents));
+ gQueue.push(new changeStyle(id, "display", "inline", kShowEvents));
+
+ // Show/hide events by changing of visibility style of accessible DOM node
+ // from 'visible' to 'hidden', 'hidden' to 'visible'.
+ id = "link2";
+ getAccessible(id);
+ gQueue.push(new changeStyle(id, "visibility", "hidden", kHideEvents));
+ gQueue.push(new changeStyle(id, "visibility", "visible", kShowEvents));
+
+ // Show/hide events by changing of visibility style of accessible DOM node
+ // from 'collapse' to 'visible', 'visible' to 'collapse'.
+ id = "link4";
+ gQueue.push(new changeStyle(id, "visibility", "visible", kShowEvents));
+ gQueue.push(new changeStyle(id, "visibility", "collapse", kHideEvents));
+
+ // Show/hide events by adding new accessible DOM node and removing old one.
+ id = "link5";
+ gQueue.push(new cloneAndAppendToDOM(id));
+ gQueue.push(new removeFromDOM(id));
+
+ // No show/hide events by adding new not accessible DOM node and removing
+ // old one, no reorder event for their parent.
+ id = "child1";
+ gQueue.push(new cloneAndAppendToDOM(id, kNoEvents));
+ gQueue.push(new removeFromDOM(id, kNoEvents));
+
+ // Show/hide events by adding new accessible DOM node and removing
+ // old one, there is reorder event for their parent.
+ id = "child2";
+ gQueue.push(new cloneAndAppendToDOM(id));
+ gQueue.push(new removeFromDOM(id));
+
+ // Show/hide events by adding new DOM node containing accessible DOM and
+ // removing old one, there is reorder event for their parent.
+ id = "child3";
+ gQueue.push(new cloneAndAppendToDOM(id, kShowEvents, getFirstChild,
+ getParent));
+
+ // Hide event for accessible child of unaccessible removed DOM node and
+ // reorder event for its parent.
+ gQueue.push(new removeFromDOM(id, kHideEvents,
+ getNEnsureFirstChild, getParent));
+
+ // Hide events for accessible children of unaccessible removed DOM node
+ // and reorder event for its parent.
+ gQueue.push(new removeFromDOM("child4", kHideEvents,
+ getNEnsureChildren, getParent));
+
+ // Show/hide events by creating new accessible DOM node and replacing
+ // old one.
+ getAccessible("link6"); // ensure accessible is created
+ gQueue.push(new cloneAndReplaceInDOM("link6"));
+
+ // Show/hide events by changing class name on the parent node.
+ gQueue.push(new changeClass("container2", "link7", "", kShowEvents));
+ gQueue.push(new changeClass("container2", "link7", "displayNone",
+ kHideEvents));
+
+ gQueue.push(new changeClass("container3", "link8", "", kShowEvents));
+ gQueue.push(new changeClass("container3", "link8", "visibilityHidden",
+ kHideEvents));
+
+ gQueue.push(new test1("testContainer"));
+ gQueue.push(new test2("testContainer", "testContainer2"));
+ gQueue.push(new test2("testContainer", "testNestedContainer"));
+ gQueue.push(new test3("testContainer"));
+ gQueue.push(new insertReferredElm("testContainer3"));
+ gQueue.push(new showHiddenParentOfVisibleChild());
+
+ gQueue.push(new hideNDestroyDoc());
+ gQueue.push(new hideHideNDestroyDoc());
+ gQueue.invoke(); // Will call SimpleTest.finish();
+ }
+
+ SimpleTest.waitForExplicitFinish();
+ addA11yLoadEvent(doTests);
+ </script>
+</head>
+
+<body>
+
+ <a target="_blank"
+ href="https://bugzilla.mozilla.org/show_bug.cgi?id=469985"
+ title=" turn the test from bug 354745 into mochitest">
+ Mozilla Bug 469985</a>
+ <a target="_blank"
+ href="https://bugzilla.mozilla.org/show_bug.cgi?id=472662"
+ title="no reorder event when html:link display property is changed from 'none' to 'inline'">
+ Mozilla Bug 472662</a>
+ <a target="_blank"
+ title="Rework accessible tree update code"
+ href="https://bugzilla.mozilla.org/show_bug.cgi?id=570275">
+ Mozilla Bug 570275</a>
+ <a target="_blank"
+ title="Develop a way to handle visibility style"
+ href="https://bugzilla.mozilla.org/show_bug.cgi?id=606125">
+ Mozilla Bug 606125</a>
+ <a target="_blank"
+ title="Update accessible tree on content insertion after layout"
+ href="https://bugzilla.mozilla.org/show_bug.cgi?id=498015">
+ Mozilla Bug 498015</a>
+
+ <p id="display"></p>
+ <div id="content" style="display: none"></div>
+ <pre id="test">
+ </pre>
+ <div id="eventdump"></div>
+
+ <div id="testContainer">
+ <a id="link1" href="http://www.google.com">Link #1</a>
+ <a id="link2" href="http://www.google.com">Link #2</a>
+ <a id="link3" href="http://www.google.com">Link #3</a>
+ <a id="link4" href="http://www.google.com" style="visibility:collapse">Link #4</a>
+ <a id="link5" href="http://www.google.com">Link #5</a>
+
+ <div id="container" role="list">
+ <span id="child1"></span>
+ <span id="child2" role="listitem"></span>
+ <span id="child3"><span role="listitem"></span></span>
+ <span id="child4"><span id="child4_1" role="listitem"></span><span id="child4_2" role="listitem"></span></span>
+ </div>
+
+ <a id="link6" href="http://www.google.com">Link #6</a>
+
+ <div id="container2" class="displayNone"><a id="link7">Link #7</a></div>
+ <div id="container3" class="visibilityHidden"><a id="link8">Link #8</a></div>
+ <div id="testNestedContainer"></div>
+ </div>
+ <div id="testContainer2"></div>
+ <div id="testContainer3"></div>
+
+ <div id="c4">
+ <div style="visibility:hidden" id="c4_middle">
+ <div style="visibility:visible" id="c4_child"></div>
+ </div>
+
+ <iframe id="c5" src="data:text/html,hey"></iframe>
+ <iframe id="c6" src="data:text/html,<label>l</label><label>l</label>"></iframe>
+</body>
+</html>