gecko/accessible/tests/mochitest/common.js
Alexander Surkov a1687194d3 Bug 617273 - make editable text tests async, r=marcoz, fer, a=test
--HG--
rename : accessible/tests/mochitest/editabletext.js => accessible/tests/mochitest/editabletext/editabletext.js
rename : accessible/tests/mochitest/test_editabletext_1.html => accessible/tests/mochitest/editabletext/test_1.html
rename : accessible/tests/mochitest/test_editabletext_2.html => accessible/tests/mochitest/editabletext/test_2.html
2010-12-15 13:23:19 -08:00

638 lines
18 KiB
JavaScript

////////////////////////////////////////////////////////////////////////////////
// Interfaces
const nsIAccessibleRetrieval = Components.interfaces.nsIAccessibleRetrieval;
const nsIAccessibleEvent = Components.interfaces.nsIAccessibleEvent;
const nsIAccessibleStateChangeEvent =
Components.interfaces.nsIAccessibleStateChangeEvent;
const nsIAccessibleCaretMoveEvent =
Components.interfaces.nsIAccessibleCaretMoveEvent;
const nsIAccessibleTextChangeEvent =
Components.interfaces.nsIAccessibleTextChangeEvent;
const nsIAccessibleStates = Components.interfaces.nsIAccessibleStates;
const nsIAccessibleRole = Components.interfaces.nsIAccessibleRole;
const nsIAccessibleTypes = Components.interfaces.nsIAccessibleTypes;
const nsIAccessibleRelation = Components.interfaces.nsIAccessibleRelation;
const nsIAccessNode = Components.interfaces.nsIAccessNode;
const nsIAccessible = Components.interfaces.nsIAccessible;
const nsIAccessibleCoordinateType =
Components.interfaces.nsIAccessibleCoordinateType;
const nsIAccessibleDocument = Components.interfaces.nsIAccessibleDocument;
const nsIAccessibleApplication = Components.interfaces.nsIAccessibleApplication;
const nsIAccessibleText = Components.interfaces.nsIAccessibleText;
const nsIAccessibleEditableText = Components.interfaces.nsIAccessibleEditableText;
const nsIAccessibleHyperLink = Components.interfaces.nsIAccessibleHyperLink;
const nsIAccessibleHyperText = Components.interfaces.nsIAccessibleHyperText;
const nsIAccessibleImage = Components.interfaces.nsIAccessibleImage;
const nsIAccessibleSelectable = Components.interfaces.nsIAccessibleSelectable;
const nsIAccessibleTable = Components.interfaces.nsIAccessibleTable;
const nsIAccessibleTableCell = Components.interfaces.nsIAccessibleTableCell;
const nsIAccessibleValue = Components.interfaces.nsIAccessibleValue;
const nsIObserverService = Components.interfaces.nsIObserverService;
const nsIDOMDocument = Components.interfaces.nsIDOMDocument;
const nsIDOMEvent = Components.interfaces.nsIDOMEvent;
const nsIDOMHTMLDocument = Components.interfaces.nsIDOMHTMLDocument;
const nsIDOMNode = Components.interfaces.nsIDOMNode;
const nsIDOMNSHTMLElement = Components.interfaces.nsIDOMNSHTMLElement;
const nsIDOMWindow = Components.interfaces.nsIDOMWindow;
const nsIDOMXULElement = Components.interfaces.nsIDOMXULElement;
const nsIPropertyElement = Components.interfaces.nsIPropertyElement;
////////////////////////////////////////////////////////////////////////////////
// OS detect
const MAC = (navigator.platform.indexOf("Mac") != -1)? true : false;
const LINUX = (navigator.platform.indexOf("Linux") != -1)? true : false;
const SOLARIS = (navigator.platform.indexOf("SunOS") != -1)? true : false;
const WIN = (navigator.platform.indexOf("Win") != -1)? true : false;
////////////////////////////////////////////////////////////////////////////////
// Accessible general
const STATE_BUSY = nsIAccessibleStates.STATE_BUSY;
const kEmbedChar = String.fromCharCode(0xfffc);
/**
* nsIAccessibleRetrieval, initialized when test is loaded.
*/
var gAccRetrieval = null;
/**
* Invokes the given function when document is loaded and focused. Preferable
* to mochitests 'addLoadEvent' function -- additionally ensures state of the
* document accessible is not busy.
*
* @param aFunc the function to invoke
*/
function addA11yLoadEvent(aFunc)
{
function waitForDocLoad()
{
window.setTimeout(
function()
{
var accDoc = getAccessible(document);
var state = {};
accDoc.getState(state, {});
if (state.value & STATE_BUSY)
return waitForDocLoad();
window.setTimeout(aFunc, 150);
},
0
);
}
SimpleTest.waitForFocus(waitForDocLoad);
}
////////////////////////////////////////////////////////////////////////////////
// Helpers for getting DOM node/accessible
/**
* Return the DOM node by identifier (may be accessible, DOM node or ID).
*/
function getNode(aAccOrNodeOrID)
{
if (!aAccOrNodeOrID)
return null;
if (aAccOrNodeOrID instanceof nsIDOMNode)
return aAccOrNodeOrID;
if (aAccOrNodeOrID instanceof nsIAccessible) {
aAccOrNodeOrID.QueryInterface(nsIAccessNode);
return aAccOrNodeOrID.DOMNode;
}
node = document.getElementById(aAccOrNodeOrID);
if (!node) {
ok(false, "Can't get DOM element for " + aAccOrNodeOrID);
return null;
}
return node;
}
/**
* Constants indicates getAccessible doesn't fail if there is no accessible.
*/
const DONOTFAIL_IF_NO_ACC = 1;
/**
* Constants indicates getAccessible won't fail if accessible doesn't implement
* the requested interfaces.
*/
const DONOTFAIL_IF_NO_INTERFACE = 2;
/**
* Return accessible for the given identifier (may be ID attribute or DOM
* element or accessible object) or null.
*
* @param aAccOrElmOrID [in] identifier to get an accessible implementing
* the given interfaces
* @param aInterfaces [in, optional] the interface or an array interfaces
* to query it/them from obtained accessible
* @param aElmObj [out, optional] object to store DOM element which
* accessible is obtained for
* @param aDoNotFailIf [in, optional] no error for special cases (see
* constants above)
*/
function getAccessible(aAccOrElmOrID, aInterfaces, aElmObj, aDoNotFailIf)
{
if (!aAccOrElmOrID)
return null;
var elm = null;
if (aAccOrElmOrID instanceof nsIAccessible) {
aAccOrElmOrID.QueryInterface(nsIAccessNode);
elm = aAccOrElmOrID.DOMNode;
} else if (aAccOrElmOrID instanceof nsIDOMNode) {
elm = aAccOrElmOrID;
} else {
elm = document.getElementById(aAccOrElmOrID);
if (!elm) {
ok(false, "Can't get DOM element for " + aAccOrElmOrID);
return null;
}
}
if (aElmObj && (typeof aElmObj == "object"))
aElmObj.value = elm;
var acc = (aAccOrElmOrID instanceof nsIAccessible) ? aAccOrElmOrID : null;
if (!acc) {
try {
acc = gAccRetrieval.getAccessibleFor(elm);
} catch (e) {
}
if (!acc) {
if (!(aDoNotFailIf & DONOTFAIL_IF_NO_ACC))
ok(false, "Can't get accessible for " + aAccOrElmOrID);
return null;
}
}
acc.QueryInterface(nsIAccessNode);
if (!aInterfaces)
return acc;
if (aInterfaces instanceof Array) {
for (var index = 0; index < aInterfaces.length; index++) {
try {
acc.QueryInterface(aInterfaces[index]);
} catch (e) {
if (!(aDoNotFailIf & DONOTFAIL_IF_NO_INTERFACE))
ok(false, "Can't query " + aInterfaces[index] + " for " + aAccOrElmOrID);
return null;
}
}
return acc;
}
try {
acc.QueryInterface(aInterfaces);
} catch (e) {
ok(false, "Can't query " + aInterfaces + " for " + aAccOrElmOrID);
return null;
}
return acc;
}
/**
* Return true if the given identifier has an accessible, or exposes the wanted
* interfaces.
*/
function isAccessible(aAccOrElmOrID, aInterfaces)
{
return getAccessible(aAccOrElmOrID, aInterfaces, null,
DONOTFAIL_IF_NO_ACC | DONOTFAIL_IF_NO_INTERFACE) ?
true : false;
}
/**
* Return an accessible that contains the DOM node for the given identifier.
*/
function getContainerAccessible(aAccOrElmOrID)
{
var node = getNode(aAccOrElmOrID);
if (!node)
return null;
while ((node = node.parentNode) && !isAccessible(node));
return node ? getAccessible(node) : null;
}
/**
* Return root accessible for the given identifier.
*/
function getRootAccessible(aAccOrElmOrID)
{
var acc = getAccessible(aAccOrElmOrID ? aAccOrElmOrID : document,
[nsIAccessNode]);
return acc ? acc.rootDocument.QueryInterface(nsIAccessible) : null;
}
/**
* Return tab document accessible the given accessible is contained by.
*/
function getTabDocAccessible(aAccOrElmOrID)
{
var acc = getAccessible(aAccOrElmOrID ? aAccOrElmOrID : document,
[nsIAccessNode]);
var docAcc = acc.document.QueryInterface(nsIAccessible);
var containerDocAcc = docAcc.parent.QueryInterface(nsIAccessNode).document;
// Test is running is stand-alone mode.
if (acc.rootDocument == containerDocAcc)
return docAcc;
// In the case of running all tests together.
return containerDocAcc.QueryInterface(nsIAccessible);
}
/**
* Return application accessible.
*/
function getApplicationAccessible()
{
return gAccRetrieval.getApplicationAccessible().
QueryInterface(nsIAccessibleApplication);
}
/**
* Run through accessible tree of the given identifier so that we ensure
* accessible tree is created.
*/
function ensureAccessibleTree(aAccOrElmOrID)
{
var acc = getAccessible(aAccOrElmOrID);
if (!acc)
return;
var child = acc.firstChild;
while (child) {
ensureAccessibleTree(child);
try {
child = child.nextSibling;
} catch (e) {
child = null;
}
}
}
/**
* Compare expected and actual accessibles trees.
*
* @param aAccOrElmOrID [in] accessible identifier
* @param aAccTree [in] JS object, each field corresponds to property of
* accessible object. Additionally special properties
* are presented:
* children - an array of JS objects representing
* children of accessible
* states - an object having states and extraStates
* fields
*/
function testAccessibleTree(aAccOrElmOrID, aAccTree)
{
var acc = getAccessible(aAccOrElmOrID);
if (!acc)
return;
var accTree = aAccTree;
// Support of simplified accessible tree object.
var key = Object.keys(accTree)[0];
var roleName = "ROLE_" + key;
if (roleName in nsIAccessibleRole) {
accTree = {
role: nsIAccessibleRole[roleName],
children: accTree[key]
};
}
// Test accessible properties.
for (var prop in accTree) {
var msg = "Wrong value of property '" + prop + "' for " + prettyName(acc) + ".";
if (prop == "role") {
is(roleToString(acc[prop]), roleToString(accTree[prop]), msg);
} else if (prop == "states") {
var statesObj = accTree[prop];
testStates(acc, statesObj.states, statesObj.extraStates,
statesObj.absentStates, statesObj.absentExtraStates);
} else if (prop != "children") {
is(acc[prop], accTree[prop], msg);
}
}
// Test children.
if ("children" in accTree && accTree["children"] instanceof Array) {
var children = acc.children;
is(children.length, accTree.children.length,
"Different amount of expected children of " + prettyName(acc) + ".");
if (accTree.children.length == children.length) {
var childCount = children.length;
// nsIAccessible::firstChild
var expectedFirstChild = childCount > 0 ?
children.queryElementAt(0, nsIAccessible) : null;
var firstChild = null;
try { firstChild = acc.firstChild; } catch (e) {}
is(firstChild, expectedFirstChild,
"Wrong first child of " + prettyName(acc));
// nsIAccessible::lastChild
var expectedLastChild = childCount > 0 ?
children.queryElementAt(childCount - 1, nsIAccessible) : null;
var lastChild = null;
try { lastChild = acc.lastChild; } catch (e) {}
is(lastChild, expectedLastChild,
"Wrong last child of " + prettyName(acc));
for (var i = 0; i < children.length; i++) {
var child = children.queryElementAt(i, nsIAccessible);
// nsIAccessible::parent
var parent = null;
try { parent = child.parent; } catch (e) {}
is(parent, acc, "Wrong parent of " + prettyName(child));
// nsIAccessible::indexInParent
var indexInParent = -1;
try { indexInParent = child.indexInParent; } catch(e) {}
is(indexInParent, i,
"Wrong index in parent of " + prettyName(child));
// nsIAccessible::nextSibling
var expectedNextSibling = (i < childCount - 1) ?
children.queryElementAt(i + 1, nsIAccessible) : null;
var nextSibling = null;
try { nextSibling = child.nextSibling; } catch (e) {}
is(nextSibling, expectedNextSibling,
"Wrong next sibling of " + prettyName(child));
// nsIAccessible::previousSibling
var expectedPrevSibling = (i > 0) ?
children.queryElementAt(i - 1, nsIAccessible) : null;
var prevSibling = null;
try { prevSibling = child.previousSibling; } catch (e) {}
is(prevSibling, expectedPrevSibling,
"Wrong previous sibling of " + prettyName(child));
// Go down through subtree
testAccessibleTree(child, accTree.children[i]);
}
}
}
}
/**
* Return true if accessible for the given node is in cache.
*/
function isAccessibleInCache(aNodeOrId)
{
var node = getNode(aNodeOrId);
return gAccRetrieval.getAccessibleFromCache(node) ? true : false;
}
/**
* Test accessible tree for defunct accessible.
*
* @param aAcc [in] the defunct accessible
* @param aNodeOrId [in] the DOM node identifier for the defunct accessible
*/
function testDefunctAccessible(aAcc, aNodeOrId)
{
if (aNodeOrId)
ok(!isAccessible(aNodeOrId),
"Accessible for " + aNodeOrId + " wasn't properly shut down!");
var msg = " doesn't fail for shut down accessible " + prettyName(aNodeOrId) + "!";
// firstChild
var success = false;
try {
aAcc.firstChild;
} catch (e) {
success = (e.result == Components.results.NS_ERROR_FAILURE)
}
ok(success, "firstChild" + msg);
// lastChild
success = false;
try {
aAcc.lastChild;
} catch (e) {
success = (e.result == Components.results.NS_ERROR_FAILURE)
}
ok(success, "lastChild" + msg);
// childCount
success = false;
try {
aAcc.childCount;
} catch (e) {
success = (e.result == Components.results.NS_ERROR_FAILURE)
}
ok(success, "childCount" + msg);
// children
success = false;
try {
aAcc.children;
} catch (e) {
success = (e.result == Components.results.NS_ERROR_FAILURE)
}
ok(success, "children" + msg);
// nextSibling
success = false;
try {
aAcc.nextSibling;
} catch (e) {
success = (e.result == Components.results.NS_ERROR_FAILURE);
}
ok(success, "nextSibling" + msg);
// previousSibling
success = false;
try {
aAcc.previousSibling;
} catch (e) {
success = (e.result == Components.results.NS_ERROR_FAILURE);
}
ok(success, "previousSibling" + msg);
// parent
success = false;
try {
aAcc.parent;
} catch (e) {
success = (e.result == Components.results.NS_ERROR_FAILURE);
}
ok(success, "parent" + msg);
}
/**
* Convert role to human readable string.
*/
function roleToString(aRole)
{
return gAccRetrieval.getStringRole(aRole);
}
/**
* Convert states to human readable string.
*/
function statesToString(aStates, aExtraStates)
{
var list = gAccRetrieval.getStringStates(aStates, aExtraStates);
var str = "";
for (var index = 0; index < list.length - 1; index++)
str += list.item(index) + ", ";
if (list.length != 0)
str += list.item(index)
return str;
}
/**
* Convert event type to human readable string.
*/
function eventTypeToString(aEventType)
{
return gAccRetrieval.getStringEventType(aEventType);
}
/**
* Convert relation type to human readable string.
*/
function relationTypeToString(aRelationType)
{
return gAccRetrieval.getStringRelationType(aRelationType);
}
/**
* Return text from clipboard.
*/
function getTextFromClipboard()
{
var clip = Components.classes["@mozilla.org/widget/clipboard;1"].
getService(Components.interfaces.nsIClipboard);
if (!clip)
return;
var trans = Components.classes["@mozilla.org/widget/transferable;1"].
createInstance(Components.interfaces.nsITransferable);
if (!trans)
return;
trans.addDataFlavor("text/unicode");
clip.getData(trans, clip.kGlobalClipboard);
var str = new Object();
var strLength = new Object();
trans.getTransferData("text/unicode", str, strLength);
if (str)
str = str.value.QueryInterface(Components.interfaces.nsISupportsString);
if (str)
return str.data.substring(0, strLength.value / 2);
return "";
}
/**
* Return pretty name for identifier, it may be ID, DOM node or accessible.
*/
function prettyName(aIdentifier)
{
if (aIdentifier instanceof nsIAccessible) {
var acc = getAccessible(aIdentifier, [nsIAccessNode]);
var msg = "[" + getNodePrettyName(acc.DOMNode);
try {
msg += ", role: " + roleToString(acc.role);
if (acc.name)
msg += ", name: '" + acc.name + "'";
} catch (e) {
msg += "defunct";
}
if (acc) {
var exp = /native\s*@\s*(0x[a-f0-9]+)/g;
var match = exp.exec(acc.valueOf());
if (match)
msg += ", address: " + match[1];
else
msg += ", address: " + acc.valueOf();
}
msg += "]";
return msg;
}
if (aIdentifier instanceof nsIDOMNode)
return getNodePrettyName(aIdentifier);
return " '" + aIdentifier + "' ";
}
////////////////////////////////////////////////////////////////////////////////
// Private
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Accessible general
function initialize()
{
gAccRetrieval = Components.classes["@mozilla.org/accessibleRetrieval;1"].
getService(nsIAccessibleRetrieval);
}
addLoadEvent(initialize);
function getNodePrettyName(aNode)
{
try {
if (aNode.nodeType == nsIDOMNode.DOCUMENT_NODE)
return " 'document node' ";
var name = " '" + aNode.localName;
if (aNode.nodeType == nsIDOMNode.ELEMENT_NODE && aNode.hasAttribute("id"))
name += "@id='" + aNode.getAttribute("id") + "'";
name += " node' "
return name;
} catch (e) {
return "' no node info '";
}
}