зеркало из https://github.com/mozilla/gecko-dev.git
698 строки
20 KiB
JavaScript
698 строки
20 KiB
JavaScript
////////////////////////////////////////////////////////////////////////////////
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// Interfaces
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const nsIAccessibleRetrieval = Components.interfaces.nsIAccessibleRetrieval;
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const nsIAccessibleEvent = Components.interfaces.nsIAccessibleEvent;
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const nsIAccessibleStateChangeEvent =
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Components.interfaces.nsIAccessibleStateChangeEvent;
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const nsIAccessibleCaretMoveEvent =
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Components.interfaces.nsIAccessibleCaretMoveEvent;
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const nsIAccessibleTextChangeEvent =
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Components.interfaces.nsIAccessibleTextChangeEvent;
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const nsIAccessibleVirtualCursorChangeEvent =
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Components.interfaces.nsIAccessibleVirtualCursorChangeEvent;
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const nsIAccessibleStates = Components.interfaces.nsIAccessibleStates;
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const nsIAccessibleRole = Components.interfaces.nsIAccessibleRole;
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const nsIAccessibleScrollType = Components.interfaces.nsIAccessibleScrollType;
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const nsIAccessibleCoordinateType = Components.interfaces.nsIAccessibleCoordinateType;
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const nsIAccessibleRelation = Components.interfaces.nsIAccessibleRelation;
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const nsIAccessible = Components.interfaces.nsIAccessible;
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const nsIAccessibleDocument = Components.interfaces.nsIAccessibleDocument;
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const nsIAccessibleApplication = Components.interfaces.nsIAccessibleApplication;
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const nsIAccessibleText = Components.interfaces.nsIAccessibleText;
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const nsIAccessibleEditableText = Components.interfaces.nsIAccessibleEditableText;
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const nsIAccessibleHyperLink = Components.interfaces.nsIAccessibleHyperLink;
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const nsIAccessibleHyperText = Components.interfaces.nsIAccessibleHyperText;
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const nsIAccessibleCursorable = Components.interfaces.nsIAccessibleCursorable;
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const nsIAccessibleImage = Components.interfaces.nsIAccessibleImage;
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const nsIAccessiblePivot = Components.interfaces.nsIAccessiblePivot;
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const nsIAccessibleSelectable = Components.interfaces.nsIAccessibleSelectable;
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const nsIAccessibleTable = Components.interfaces.nsIAccessibleTable;
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const nsIAccessibleTableCell = Components.interfaces.nsIAccessibleTableCell;
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const nsIAccessibleTraversalRule = Components.interfaces.nsIAccessibleTraversalRule;
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const nsIAccessibleValue = Components.interfaces.nsIAccessibleValue;
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const nsIObserverService = Components.interfaces.nsIObserverService;
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const nsIDOMDocument = Components.interfaces.nsIDOMDocument;
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const nsIDOMEvent = Components.interfaces.nsIDOMEvent;
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const nsIDOMHTMLDocument = Components.interfaces.nsIDOMHTMLDocument;
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const nsIDOMNode = Components.interfaces.nsIDOMNode;
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const nsIDOMHTMLElement = Components.interfaces.nsIDOMHTMLElement;
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const nsIDOMWindow = Components.interfaces.nsIDOMWindow;
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const nsIDOMXULElement = Components.interfaces.nsIDOMXULElement;
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const nsIPropertyElement = Components.interfaces.nsIPropertyElement;
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////////////////////////////////////////////////////////////////////////////////
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// OS detect
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const MAC = (navigator.platform.indexOf("Mac") != -1);
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const LINUX = (navigator.platform.indexOf("Linux") != -1);
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const SOLARIS = (navigator.platform.indexOf("SunOS") != -1);
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const WIN = (navigator.platform.indexOf("Win") != -1);
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////////////////////////////////////////////////////////////////////////////////
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// Application detect
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// Firefox is assumed by default.
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const SEAMONKEY = navigator.userAgent.match(/ SeaMonkey\//);
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////////////////////////////////////////////////////////////////////////////////
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// Accessible general
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const STATE_BUSY = nsIAccessibleStates.STATE_BUSY;
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const SCROLL_TYPE_ANYWHERE = nsIAccessibleScrollType.SCROLL_TYPE_ANYWHERE;
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const COORDTYPE_SCREEN_RELATIVE = nsIAccessibleCoordinateType.COORDTYPE_SCREEN_RELATIVE;
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const COORDTYPE_WINDOW_RELATIVE = nsIAccessibleCoordinateType.COORDTYPE_WINDOW_RELATIVE;
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const COORDTYPE_PARENT_RELATIVE = nsIAccessibleCoordinateType.COORDTYPE_PARENT_RELATIVE;
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const kEmbedChar = String.fromCharCode(0xfffc);
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const kDiscBulletText = String.fromCharCode(0x2022) + " ";
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const kCircleBulletText = String.fromCharCode(0x25e6) + " ";
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const kSquareBulletText = String.fromCharCode(0x25aa) + " ";
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const MAX_TRIM_LENGTH = 100;
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/**
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* nsIAccessibleRetrieval service.
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*/
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var gAccRetrieval = Components.classes["@mozilla.org/accessibleRetrieval;1"].
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getService(nsIAccessibleRetrieval);
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/**
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* Enable/disable logging.
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*/
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function enableLogging(aModules)
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{
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gAccRetrieval.setLogging(aModules);
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}
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function disableLogging()
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{
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gAccRetrieval.setLogging("");
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}
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function isLogged(aModule)
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{
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return gAccRetrieval.isLogged(aModule);
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}
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/**
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* Invokes the given function when document is loaded and focused. Preferable
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* to mochitests 'addLoadEvent' function -- additionally ensures state of the
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* document accessible is not busy.
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*
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* @param aFunc the function to invoke
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*/
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function addA11yLoadEvent(aFunc, aWindow)
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{
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function waitForDocLoad()
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{
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window.setTimeout(
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function()
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{
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var targetDocument = aWindow ? aWindow.document : document;
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var accDoc = getAccessible(targetDocument);
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var state = {};
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accDoc.getState(state, {});
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if (state.value & STATE_BUSY)
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return waitForDocLoad();
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window.setTimeout(aFunc, 0);
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},
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0
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);
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}
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SimpleTest.waitForFocus(waitForDocLoad, aWindow);
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}
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/**
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* Analogy of SimpleTest.is function used to compare objects.
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*/
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function isObject(aObj, aExpectedObj, aMsg)
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{
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if (aObj == aExpectedObj) {
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ok(true, aMsg);
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return;
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}
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ok(false,
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aMsg + " - got '" + prettyName(aObj) +
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"', expected '" + prettyName(aExpectedObj) + "'");
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}
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////////////////////////////////////////////////////////////////////////////////
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// Helpers for getting DOM node/accessible
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/**
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* Return the DOM node by identifier (may be accessible, DOM node or ID).
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*/
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function getNode(aAccOrNodeOrID)
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{
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if (!aAccOrNodeOrID)
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return null;
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if (aAccOrNodeOrID instanceof nsIDOMNode)
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return aAccOrNodeOrID;
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if (aAccOrNodeOrID instanceof nsIAccessible)
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return aAccOrNodeOrID.DOMNode;
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node = document.getElementById(aAccOrNodeOrID);
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if (!node) {
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ok(false, "Can't get DOM element for " + aAccOrNodeOrID);
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return null;
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}
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return node;
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}
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/**
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* Constants indicates getAccessible doesn't fail if there is no accessible.
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*/
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const DONOTFAIL_IF_NO_ACC = 1;
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/**
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* Constants indicates getAccessible won't fail if accessible doesn't implement
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* the requested interfaces.
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*/
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const DONOTFAIL_IF_NO_INTERFACE = 2;
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/**
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* Return accessible for the given identifier (may be ID attribute or DOM
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* element or accessible object) or null.
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*
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* @param aAccOrElmOrID [in] identifier to get an accessible implementing
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* the given interfaces
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* @param aInterfaces [in, optional] the interface or an array interfaces
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* to query it/them from obtained accessible
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* @param aElmObj [out, optional] object to store DOM element which
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* accessible is obtained for
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* @param aDoNotFailIf [in, optional] no error for special cases (see
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* constants above)
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*/
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function getAccessible(aAccOrElmOrID, aInterfaces, aElmObj, aDoNotFailIf)
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{
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if (!aAccOrElmOrID)
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return null;
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var elm = null;
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if (aAccOrElmOrID instanceof nsIAccessible) {
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elm = aAccOrElmOrID.DOMNode;
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} else if (aAccOrElmOrID instanceof nsIDOMNode) {
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elm = aAccOrElmOrID;
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} else {
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elm = document.getElementById(aAccOrElmOrID);
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if (!elm) {
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ok(false, "Can't get DOM element for " + aAccOrElmOrID);
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return null;
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}
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}
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if (aElmObj && (typeof aElmObj == "object"))
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aElmObj.value = elm;
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var acc = (aAccOrElmOrID instanceof nsIAccessible) ? aAccOrElmOrID : null;
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if (!acc) {
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try {
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acc = gAccRetrieval.getAccessibleFor(elm);
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} catch (e) {
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}
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if (!acc) {
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if (!(aDoNotFailIf & DONOTFAIL_IF_NO_ACC))
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ok(false, "Can't get accessible for " + aAccOrElmOrID);
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return null;
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}
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}
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if (!aInterfaces)
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return acc;
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if (aInterfaces instanceof Array) {
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for (var index = 0; index < aInterfaces.length; index++) {
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try {
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acc.QueryInterface(aInterfaces[index]);
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} catch (e) {
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if (!(aDoNotFailIf & DONOTFAIL_IF_NO_INTERFACE))
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ok(false, "Can't query " + aInterfaces[index] + " for " + aAccOrElmOrID);
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return null;
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}
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}
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return acc;
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}
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try {
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acc.QueryInterface(aInterfaces);
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} catch (e) {
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ok(false, "Can't query " + aInterfaces + " for " + aAccOrElmOrID);
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return null;
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}
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return acc;
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}
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/**
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* Return true if the given identifier has an accessible, or exposes the wanted
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* interfaces.
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*/
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function isAccessible(aAccOrElmOrID, aInterfaces)
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{
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return getAccessible(aAccOrElmOrID, aInterfaces, null,
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DONOTFAIL_IF_NO_ACC | DONOTFAIL_IF_NO_INTERFACE) ?
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true : false;
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}
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/**
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* Return an accessible that contains the DOM node for the given identifier.
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*/
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function getContainerAccessible(aAccOrElmOrID)
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{
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var node = getNode(aAccOrElmOrID);
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if (!node)
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return null;
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while ((node = node.parentNode) && !isAccessible(node));
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return node ? getAccessible(node) : null;
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}
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/**
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* Return root accessible for the given identifier.
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*/
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function getRootAccessible(aAccOrElmOrID)
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{
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var acc = getAccessible(aAccOrElmOrID ? aAccOrElmOrID : document);
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return acc ? acc.rootDocument.QueryInterface(nsIAccessible) : null;
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}
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/**
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* Return tab document accessible the given accessible is contained by.
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*/
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function getTabDocAccessible(aAccOrElmOrID)
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{
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var acc = getAccessible(aAccOrElmOrID ? aAccOrElmOrID : document);
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var docAcc = acc.document.QueryInterface(nsIAccessible);
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var containerDocAcc = docAcc.parent.document;
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// Test is running is stand-alone mode.
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if (acc.rootDocument == containerDocAcc)
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return docAcc;
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// In the case of running all tests together.
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return containerDocAcc.QueryInterface(nsIAccessible);
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}
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/**
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* Return application accessible.
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*/
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function getApplicationAccessible()
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{
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return gAccRetrieval.getApplicationAccessible().
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QueryInterface(nsIAccessibleApplication);
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}
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/**
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* Compare expected and actual accessibles trees.
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*
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* @param aAccOrElmOrID [in] accessible identifier
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* @param aAccTree [in] JS object, each field corresponds to property of
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* accessible object. Additionally special properties
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* are presented:
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* children - an array of JS objects representing
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* children of accessible
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* states - an object having states and extraStates
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* fields
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*/
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function testAccessibleTree(aAccOrElmOrID, aAccTree)
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{
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var acc = getAccessible(aAccOrElmOrID);
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if (!acc)
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return;
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var accTree = aAccTree;
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// Support of simplified accessible tree object.
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var key = Object.keys(accTree)[0];
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var roleName = "ROLE_" + key;
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if (roleName in nsIAccessibleRole) {
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accTree = {
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role: nsIAccessibleRole[roleName],
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children: accTree[key]
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};
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}
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// Test accessible properties.
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for (var prop in accTree) {
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var msg = "Wrong value of property '" + prop + "' for " + prettyName(acc) + ".";
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if (prop == "role") {
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is(roleToString(acc[prop]), roleToString(accTree[prop]), msg);
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} else if (prop == "states") {
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var statesObj = accTree[prop];
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testStates(acc, statesObj.states, statesObj.extraStates,
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statesObj.absentStates, statesObj.absentExtraStates);
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} else if (prop == "tagName") {
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is(accTree[prop], acc.DOMNode.tagName, msg);
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} else if (prop != "children") {
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is(acc[prop], accTree[prop], msg);
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}
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}
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// Test children.
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if ("children" in accTree && accTree["children"] instanceof Array) {
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var children = acc.children;
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is(children.length, accTree.children.length,
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"Different amount of expected children of " + prettyName(acc) + ".");
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if (accTree.children.length == children.length) {
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var childCount = children.length;
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// nsIAccessible::firstChild
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var expectedFirstChild = childCount > 0 ?
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children.queryElementAt(0, nsIAccessible) : null;
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var firstChild = null;
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try { firstChild = acc.firstChild; } catch (e) {}
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is(firstChild, expectedFirstChild,
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"Wrong first child of " + prettyName(acc));
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// nsIAccessible::lastChild
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var expectedLastChild = childCount > 0 ?
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children.queryElementAt(childCount - 1, nsIAccessible) : null;
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var lastChild = null;
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try { lastChild = acc.lastChild; } catch (e) {}
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is(lastChild, expectedLastChild,
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"Wrong last child of " + prettyName(acc));
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for (var i = 0; i < children.length; i++) {
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var child = children.queryElementAt(i, nsIAccessible);
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// nsIAccessible::parent
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var parent = null;
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try { parent = child.parent; } catch (e) {}
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is(parent, acc, "Wrong parent of " + prettyName(child));
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// nsIAccessible::indexInParent
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var indexInParent = -1;
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try { indexInParent = child.indexInParent; } catch(e) {}
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is(indexInParent, i,
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"Wrong index in parent of " + prettyName(child));
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// nsIAccessible::nextSibling
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var expectedNextSibling = (i < childCount - 1) ?
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children.queryElementAt(i + 1, nsIAccessible) : null;
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var nextSibling = null;
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try { nextSibling = child.nextSibling; } catch (e) {}
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is(nextSibling, expectedNextSibling,
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"Wrong next sibling of " + prettyName(child));
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// nsIAccessible::previousSibling
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var expectedPrevSibling = (i > 0) ?
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children.queryElementAt(i - 1, nsIAccessible) : null;
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var prevSibling = null;
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try { prevSibling = child.previousSibling; } catch (e) {}
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is(prevSibling, expectedPrevSibling,
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"Wrong previous sibling of " + prettyName(child));
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// Go down through subtree
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testAccessibleTree(child, accTree.children[i]);
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}
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}
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}
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}
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/**
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* Return true if accessible for the given node is in cache.
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*/
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function isAccessibleInCache(aNodeOrId)
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{
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var node = getNode(aNodeOrId);
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return gAccRetrieval.getAccessibleFromCache(node) ? true : false;
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}
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/**
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* Test accessible tree for defunct accessible.
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*
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* @param aAcc [in] the defunct accessible
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* @param aNodeOrId [in] the DOM node identifier for the defunct accessible
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*/
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function testDefunctAccessible(aAcc, aNodeOrId)
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{
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if (aNodeOrId)
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ok(!isAccessible(aNodeOrId),
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"Accessible for " + aNodeOrId + " wasn't properly shut down!");
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var msg = " doesn't fail for shut down accessible " + prettyName(aNodeOrId) + "!";
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// firstChild
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var success = false;
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try {
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aAcc.firstChild;
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} catch (e) {
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success = (e.result == Components.results.NS_ERROR_FAILURE)
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}
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ok(success, "firstChild" + msg);
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// lastChild
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success = false;
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try {
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aAcc.lastChild;
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} catch (e) {
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success = (e.result == Components.results.NS_ERROR_FAILURE)
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}
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ok(success, "lastChild" + msg);
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// childCount
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success = false;
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try {
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aAcc.childCount;
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} catch (e) {
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success = (e.result == Components.results.NS_ERROR_FAILURE)
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}
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ok(success, "childCount" + msg);
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// children
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success = false;
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try {
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aAcc.children;
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} catch (e) {
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success = (e.result == Components.results.NS_ERROR_FAILURE)
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}
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ok(success, "children" + msg);
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// nextSibling
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success = false;
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try {
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aAcc.nextSibling;
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} catch (e) {
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success = (e.result == Components.results.NS_ERROR_FAILURE);
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}
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ok(success, "nextSibling" + msg);
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// previousSibling
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success = false;
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try {
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aAcc.previousSibling;
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} catch (e) {
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success = (e.result == Components.results.NS_ERROR_FAILURE);
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}
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ok(success, "previousSibling" + msg);
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// parent
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success = false;
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try {
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aAcc.parent;
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} catch (e) {
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success = (e.result == Components.results.NS_ERROR_FAILURE);
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|
}
|
|
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);
|
|
}
|
|
|
|
function getLoadContext() {
|
|
const Ci = Components.interfaces;
|
|
return window.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIWebNavigation)
|
|
.QueryInterface(Ci.nsILoadContext);
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
trans.init(getLoadContext());
|
|
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 Array) {
|
|
var msg = "";
|
|
for (var idx = 0; idx < aIdentifier.length; idx++) {
|
|
if (msg != "")
|
|
msg += ", ";
|
|
|
|
msg += prettyName(aIdentifier[idx]);
|
|
}
|
|
return msg;
|
|
}
|
|
|
|
if (aIdentifier instanceof nsIAccessible) {
|
|
var acc = getAccessible(aIdentifier);
|
|
var msg = "[" + getNodePrettyName(acc.DOMNode);
|
|
try {
|
|
msg += ", role: " + roleToString(acc.role);
|
|
if (acc.name)
|
|
msg += ", name: '" + shortenString(acc.name) + "'";
|
|
} catch (e) {
|
|
msg += "defunct";
|
|
}
|
|
|
|
if (acc)
|
|
msg += ", address: " + getObjAddress(acc);
|
|
msg += "]";
|
|
|
|
return msg;
|
|
}
|
|
|
|
if (aIdentifier instanceof nsIDOMNode)
|
|
return "[ " + getNodePrettyName(aIdentifier) + " ]";
|
|
|
|
return " '" + aIdentifier + "' ";
|
|
}
|
|
|
|
/**
|
|
* Shorten a long string if it exceeds MAX_TRIM_LENGTH.
|
|
* @param aString the string to shorten.
|
|
* @returns the shortened string.
|
|
*/
|
|
function shortenString(aString, aMaxLength)
|
|
{
|
|
if (aString.length <= MAX_TRIM_LENGTH)
|
|
return aString;
|
|
|
|
// Trim the string if its length is > MAX_TRIM_LENGTH characters.
|
|
var trimOffset = MAX_TRIM_LENGTH / 2;
|
|
return aString.substring(0, trimOffset - 1) + "..." +
|
|
aString.substring(aString.length - trimOffset, aString.length);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Private
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Accessible general
|
|
|
|
function getNodePrettyName(aNode)
|
|
{
|
|
try {
|
|
var tag = "";
|
|
if (aNode.nodeType == nsIDOMNode.DOCUMENT_NODE) {
|
|
tag = "document";
|
|
} else {
|
|
tag = aNode.localName;
|
|
if (aNode.nodeType == nsIDOMNode.ELEMENT_NODE && aNode.hasAttribute("id"))
|
|
tag += "@id=\"" + aNode.getAttribute("id") + "\"";
|
|
}
|
|
|
|
return "'" + tag + " node', address: " + getObjAddress(aNode);
|
|
} catch (e) {
|
|
return "' no node info '";
|
|
}
|
|
}
|
|
|
|
function getObjAddress(aObj)
|
|
{
|
|
var exp = /native\s*@\s*(0x[a-f0-9]+)/g;
|
|
var match = exp.exec(aObj.toString());
|
|
if (match)
|
|
return match[1];
|
|
|
|
return aObj.toString();
|
|
}
|