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246 lines
6.8 KiB
JavaScript
246 lines
6.8 KiB
JavaScript
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is DOM Inspector.
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*
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* The Initial Developer of the Original Code is
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* Alexander Surkov.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Alexander Surkov <surkov.alexander@gmail.com> (original author)
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* Vasiliy Potapenko <vasiliy.potapenko@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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///////////////////////////////////////////////////////////////////////////////
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//// Global Variables
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var viewer;
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///////////////////////////////////////////////////////////////////////////////
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//// Global Constants
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const kAccessibleRetrievalCID = "@mozilla.org/accessibleRetrieval;1";
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const nsIAccessibleRetrieval = Components.interfaces.nsIAccessibleRetrieval;
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const nsIAccessible = Components.interfaces.nsIAccessible;
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const nsIPropertyElement = Components.interfaces.nsIPropertyElement;
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///////////////////////////////////////////////////////////////////////////////
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//// Initialization/Destruction
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window.addEventListener("load", AccessiblePropsViewer_initialize, false);
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function AccessiblePropsViewer_initialize()
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{
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viewer = new AccessiblePropsViewer();
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viewer.initialize(parent.FrameExchange.receiveData(window));
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}
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///////////////////////////////////////////////////////////////////////////////
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//// class AccessiblePropsViewer
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function AccessiblePropsViewer()
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{
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this.mURL = window.location;
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this.mObsMan = new ObserverManager(this);
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this.mAccService = XPCU.getService(kAccessibleRetrievalCID,
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nsIAccessibleRetrieval);
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}
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AccessiblePropsViewer.prototype =
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{
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mSubject: null,
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mPane: null,
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mAccSubject: null,
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mAccService: null,
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get uid() { return "accessibleProps" },
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get pane() { return this.mPane },
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get subject() { return this.mSubject },
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set subject(aObject)
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{
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this.mSubject = aObject;
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this.updateView();
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this.mObsMan.dispatchEvent("subjectChange", { subject: aObject });
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},
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initialize: function initialize(aPane)
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{
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this.mPane = aPane;
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aPane.notifyViewerReady(this);
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},
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isCommandEnabled: function isCommandEnabled(aCommand)
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{
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return false;
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},
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getCommand: function getCommand(aCommand)
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{
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return null;
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},
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destroy: function destroy() {},
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// event dispatching
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addObserver: function addObserver(aEvent, aObserver)
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{
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this.mObsMan.addObserver(aEvent, aObserver);
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},
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removeObserver: function removeObserver(aEvent, aObserver)
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{
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this.mObsMan.removeObserver(aEvent, aObserver);
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},
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// private
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updateView: function updateView()
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{
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this.clearView();
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try {
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this.mAccSubject = this.mSubject.getUserData("accessible");
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if (this.mAccSubject)
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XPCU.QI(this.mAccSubject, nsIAccessible);
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else
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this.mAccSubject = this.mAccService.getAccessibleFor(this.mSubject);
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} catch(e) {
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dump("Failed to get accessible object for node.");
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return;
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}
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var containers = document.getElementsByAttribute("prop", "*");
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for (var i = 0; i < containers.length; ++i) {
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var value = "";
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try {
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var prop = containers[i].getAttribute("prop");
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value = this[prop];
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} catch (e) {
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dump("Accessibility " + prop + " property is not available.\n");
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}
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if (value instanceof Array)
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containers[i].textContent = value.join(", ");
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else
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containers[i].textContent = value;
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}
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var attrs = this.mAccSubject.attributes;
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if (attrs) {
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var enumerate = attrs.enumerate();
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while (enumerate.hasMoreElements())
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this.addAccessibleAttribute(enumerate.getNext());
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}
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},
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addAccessibleAttribute: function addAccessibleAttribute(aElement)
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{
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var prop = XPCU.QI(aElement, nsIPropertyElement);
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var trAttrBody = document.getElementById("trAttrBody");
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var ti = document.createElement("treeitem");
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var tr = document.createElement("treerow");
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var tc = document.createElement("treecell");
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tc.setAttribute("label", prop.key);
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tr.appendChild(tc);
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tc = document.createElement("treecell");
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tc.setAttribute("label", prop.value);
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tr.appendChild(tc);
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ti.appendChild(tr);
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trAttrBody.appendChild(ti);
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},
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removeAccessibleAttributes: function removeAccessibleAttributes()
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{
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var trAttrBody = document.getElementById("trAttrBody");
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while (trAttrBody.hasChildNodes())
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trAttrBody.removeChild(trAttrBody.lastChild)
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},
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clearView: function clearView()
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{
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var containers = document.getElementsByAttribute("prop", "*");
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for (var i = 0; i < containers.length; ++i)
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containers[i].textContent = "";
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this.removeAccessibleAttributes();
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},
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get role()
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{
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return this.mAccService.getStringRole(this.mAccSubject.finalRole);
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},
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get name()
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{
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return this.mAccSubject.name;
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},
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get description()
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{
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return this.mAccSubject.description;
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},
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get value()
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{
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return this.mAccSubject.value;
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},
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get state()
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{
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var stateObj = {value: null};
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var extStateObj = {value: null};
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this.mAccSubject.getFinalState(stateObj, extStateObj);
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var list = [];
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states = this.mAccService.getStringStates(stateObj.value, extStateObj.value);
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for (var i = 0; i < states.length; i++)
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list.push(states.item(i));
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return list;
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},
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get actionNames()
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{
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var list = [];
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var count = this.mAccSubject.numActions;
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for (var i = 0; i < count; i++)
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list.push(this.mAccSubject.getActionName(i));
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return list;
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}
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};
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