1/*
2 * Copyright 2013 Google Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 * Generated from http://github.com/GoogleChrome/accessibility-developer-tools/tree/2f50bfddc20fb2b4e08e4106ac0f97ac892b31f1
17 *
18 * See project README for build steps.
19 */
20
21// AUTO-GENERATED CONTENT BELOW: DO NOT EDIT! See above for details.
22
23var COMPILED = !0, goog = goog || {};
24goog.global = this;
25goog.exportPath_ = function(a, b, c) {
26  a = a.split(".");
27  c = c || goog.global;
28  a[0] in c || !c.execScript || c.execScript("var " + a[0]);
29  for(var d;a.length && (d = a.shift());) {
30    a.length || void 0 === b ? c = c[d] ? c[d] : c[d] = {} : c[d] = b
31  }
32};
33goog.define = function(a, b) {
34  var c = b;
35  COMPILED || goog.global.CLOSURE_DEFINES && Object.prototype.hasOwnProperty.call(goog.global.CLOSURE_DEFINES, a) && (c = goog.global.CLOSURE_DEFINES[a]);
36  goog.exportPath_(a, c)
37};
38goog.DEBUG = !0;
39goog.LOCALE = "en";
40goog.TRUSTED_SITE = !0;
41goog.provide = function(a) {
42  if(!COMPILED) {
43    if(goog.isProvided_(a)) {
44      throw Error('Namespace "' + a + '" already declared.');
45    }
46    delete goog.implicitNamespaces_[a];
47    for(var b = a;(b = b.substring(0, b.lastIndexOf("."))) && !goog.getObjectByName(b);) {
48      goog.implicitNamespaces_[b] = !0
49    }
50  }
51  goog.exportPath_(a)
52};
53goog.setTestOnly = function(a) {
54  if(COMPILED && !goog.DEBUG) {
55    throw a = a || "", Error("Importing test-only code into non-debug environment" + a ? ": " + a : ".");
56  }
57};
58COMPILED || (goog.isProvided_ = function(a) {
59  return!goog.implicitNamespaces_[a] && !!goog.getObjectByName(a)
60}, goog.implicitNamespaces_ = {});
61goog.getObjectByName = function(a, b) {
62  for(var c = a.split("."), d = b || goog.global, e;e = c.shift();) {
63    if(goog.isDefAndNotNull(d[e])) {
64      d = d[e]
65    }else {
66      return null
67    }
68  }
69  return d
70};
71goog.globalize = function(a, b) {
72  var c = b || goog.global, d;
73  for(d in a) {
74    c[d] = a[d]
75  }
76};
77goog.addDependency = function(a, b, c) {
78  if(goog.DEPENDENCIES_ENABLED) {
79    var d;
80    a = a.replace(/\\/g, "/");
81    for(var e = goog.dependencies_, f = 0;d = b[f];f++) {
82      e.nameToPath[d] = a, a in e.pathToNames || (e.pathToNames[a] = {}), e.pathToNames[a][d] = !0
83    }
84    for(d = 0;b = c[d];d++) {
85      a in e.requires || (e.requires[a] = {}), e.requires[a][b] = !0
86    }
87  }
88};
89goog.ENABLE_DEBUG_LOADER = !0;
90goog.require = function(a) {
91  if(!COMPILED && !goog.isProvided_(a)) {
92    if(goog.ENABLE_DEBUG_LOADER) {
93      var b = goog.getPathFromDeps_(a);
94      if(b) {
95        goog.included_[b] = !0;
96        goog.writeScripts_();
97        return
98      }
99    }
100    a = "goog.require could not find: " + a;
101    goog.global.console && goog.global.console.error(a);
102    throw Error(a);
103  }
104};
105goog.basePath = "";
106goog.nullFunction = function() {
107};
108goog.identityFunction = function(a, b) {
109  return a
110};
111goog.abstractMethod = function() {
112  throw Error("unimplemented abstract method");
113};
114goog.addSingletonGetter = function(a) {
115  a.getInstance = function() {
116    if(a.instance_) {
117      return a.instance_
118    }
119    goog.DEBUG && (goog.instantiatedSingletons_[goog.instantiatedSingletons_.length] = a);
120    return a.instance_ = new a
121  }
122};
123goog.instantiatedSingletons_ = [];
124goog.DEPENDENCIES_ENABLED = !COMPILED && goog.ENABLE_DEBUG_LOADER;
125goog.DEPENDENCIES_ENABLED && (goog.included_ = {}, goog.dependencies_ = {pathToNames:{}, nameToPath:{}, requires:{}, visited:{}, written:{}}, goog.inHtmlDocument_ = function() {
126  var a = goog.global.document;
127  return"undefined" != typeof a && "write" in a
128}, goog.findBasePath_ = function() {
129  if(goog.global.CLOSURE_BASE_PATH) {
130    goog.basePath = goog.global.CLOSURE_BASE_PATH
131  }else {
132    if(goog.inHtmlDocument_()) {
133      for(var a = goog.global.document.getElementsByTagName("script"), b = a.length - 1;0 <= b;--b) {
134        var c = a[b].src, d = c.lastIndexOf("?"), d = -1 == d ? c.length : d;
135        if("base.js" == c.substr(d - 7, 7)) {
136          goog.basePath = c.substr(0, d - 7);
137          break
138        }
139      }
140    }
141  }
142}, goog.importScript_ = function(a) {
143  var b = goog.global.CLOSURE_IMPORT_SCRIPT || goog.writeScriptTag_;
144  !goog.dependencies_.written[a] && b(a) && (goog.dependencies_.written[a] = !0)
145}, goog.writeScriptTag_ = function(a) {
146  if(goog.inHtmlDocument_()) {
147    var b = goog.global.document;
148    if("complete" == b.readyState) {
149      if(/\bdeps.js$/.test(a)) {
150        return!1
151      }
152      throw Error('Cannot write "' + a + '" after document load');
153    }
154    b.write('<script type="text/javascript" src="' + a + '">\x3c/script>');
155    return!0
156  }
157  return!1
158}, goog.writeScripts_ = function() {
159  function a(e) {
160    if(!(e in d.written)) {
161      if(!(e in d.visited) && (d.visited[e] = !0, e in d.requires)) {
162        for(var g in d.requires[e]) {
163          if(!goog.isProvided_(g)) {
164            if(g in d.nameToPath) {
165              a(d.nameToPath[g])
166            }else {
167              throw Error("Undefined nameToPath for " + g);
168            }
169          }
170        }
171      }
172      e in c || (c[e] = !0, b.push(e))
173    }
174  }
175  var b = [], c = {}, d = goog.dependencies_, e;
176  for(e in goog.included_) {
177    d.written[e] || a(e)
178  }
179  for(e = 0;e < b.length;e++) {
180    if(b[e]) {
181      goog.importScript_(goog.basePath + b[e])
182    }else {
183      throw Error("Undefined script input");
184    }
185  }
186}, goog.getPathFromDeps_ = function(a) {
187  return a in goog.dependencies_.nameToPath ? goog.dependencies_.nameToPath[a] : null
188}, goog.findBasePath_(), goog.global.CLOSURE_NO_DEPS || goog.importScript_(goog.basePath + "deps.js"));
189goog.typeOf = function(a) {
190  var b = typeof a;
191  if("object" == b) {
192    if(a) {
193      if(a instanceof Array) {
194        return"array"
195      }
196      if(a instanceof Object) {
197        return b
198      }
199      var c = Object.prototype.toString.call(a);
200      if("[object Window]" == c) {
201        return"object"
202      }
203      if("[object Array]" == c || "number" == typeof a.length && "undefined" != typeof a.splice && "undefined" != typeof a.propertyIsEnumerable && !a.propertyIsEnumerable("splice")) {
204        return"array"
205      }
206      if("[object Function]" == c || "undefined" != typeof a.call && "undefined" != typeof a.propertyIsEnumerable && !a.propertyIsEnumerable("call")) {
207        return"function"
208      }
209    }else {
210      return"null"
211    }
212  }else {
213    if("function" == b && "undefined" == typeof a.call) {
214      return"object"
215    }
216  }
217  return b
218};
219goog.isDef = function(a) {
220  return void 0 !== a
221};
222goog.isNull = function(a) {
223  return null === a
224};
225goog.isDefAndNotNull = function(a) {
226  return null != a
227};
228goog.isArray = function(a) {
229  return"array" == goog.typeOf(a)
230};
231goog.isArrayLike = function(a) {
232  var b = goog.typeOf(a);
233  return"array" == b || "object" == b && "number" == typeof a.length
234};
235goog.isDateLike = function(a) {
236  return goog.isObject(a) && "function" == typeof a.getFullYear
237};
238goog.isString = function(a) {
239  return"string" == typeof a
240};
241goog.isBoolean = function(a) {
242  return"boolean" == typeof a
243};
244goog.isNumber = function(a) {
245  return"number" == typeof a
246};
247goog.isFunction = function(a) {
248  return"function" == goog.typeOf(a)
249};
250goog.isObject = function(a) {
251  var b = typeof a;
252  return"object" == b && null != a || "function" == b
253};
254goog.getUid = function(a) {
255  return a[goog.UID_PROPERTY_] || (a[goog.UID_PROPERTY_] = ++goog.uidCounter_)
256};
257goog.removeUid = function(a) {
258  "removeAttribute" in a && a.removeAttribute(goog.UID_PROPERTY_);
259  try {
260    delete a[goog.UID_PROPERTY_]
261  }catch(b) {
262  }
263};
264goog.UID_PROPERTY_ = "closure_uid_" + (1E9 * Math.random() >>> 0);
265goog.uidCounter_ = 0;
266goog.getHashCode = goog.getUid;
267goog.removeHashCode = goog.removeUid;
268goog.cloneObject = function(a) {
269  var b = goog.typeOf(a);
270  if("object" == b || "array" == b) {
271    if(a.clone) {
272      return a.clone()
273    }
274    var b = "array" == b ? [] : {}, c;
275    for(c in a) {
276      b[c] = goog.cloneObject(a[c])
277    }
278    return b
279  }
280  return a
281};
282goog.bindNative_ = function(a, b, c) {
283  return a.call.apply(a.bind, arguments)
284};
285goog.bindJs_ = function(a, b, c) {
286  if(!a) {
287    throw Error();
288  }
289  if(2 < arguments.length) {
290    var d = Array.prototype.slice.call(arguments, 2);
291    return function() {
292      var c = Array.prototype.slice.call(arguments);
293      Array.prototype.unshift.apply(c, d);
294      return a.apply(b, c)
295    }
296  }
297  return function() {
298    return a.apply(b, arguments)
299  }
300};
301goog.bind = function(a, b, c) {
302  Function.prototype.bind && -1 != Function.prototype.bind.toString().indexOf("native code") ? goog.bind = goog.bindNative_ : goog.bind = goog.bindJs_;
303  return goog.bind.apply(null, arguments)
304};
305goog.partial = function(a, b) {
306  var c = Array.prototype.slice.call(arguments, 1);
307  return function() {
308    var b = Array.prototype.slice.call(arguments);
309    b.unshift.apply(b, c);
310    return a.apply(this, b)
311  }
312};
313goog.mixin = function(a, b) {
314  for(var c in b) {
315    a[c] = b[c]
316  }
317};
318goog.now = goog.TRUSTED_SITE && Date.now || function() {
319  return+new Date
320};
321goog.globalEval = function(a) {
322  if(goog.global.execScript) {
323    goog.global.execScript(a, "JavaScript")
324  }else {
325    if(goog.global.eval) {
326      if(null == goog.evalWorksForGlobals_ && (goog.global.eval("var _et_ = 1;"), "undefined" != typeof goog.global._et_ ? (delete goog.global._et_, goog.evalWorksForGlobals_ = !0) : goog.evalWorksForGlobals_ = !1), goog.evalWorksForGlobals_) {
327        goog.global.eval(a)
328      }else {
329        var b = goog.global.document, c = b.createElement("script");
330        c.type = "text/javascript";
331        c.defer = !1;
332        c.appendChild(b.createTextNode(a));
333        b.body.appendChild(c);
334        b.body.removeChild(c)
335      }
336    }else {
337      throw Error("goog.globalEval not available");
338    }
339  }
340};
341goog.evalWorksForGlobals_ = null;
342goog.getCssName = function(a, b) {
343  var c = function(a) {
344    return goog.cssNameMapping_[a] || a
345  }, d = function(a) {
346    a = a.split("-");
347    for(var b = [], d = 0;d < a.length;d++) {
348      b.push(c(a[d]))
349    }
350    return b.join("-")
351  }, d = goog.cssNameMapping_ ? "BY_WHOLE" == goog.cssNameMappingStyle_ ? c : d : function(a) {
352    return a
353  };
354  return b ? a + "-" + d(b) : d(a)
355};
356goog.setCssNameMapping = function(a, b) {
357  goog.cssNameMapping_ = a;
358  goog.cssNameMappingStyle_ = b
359};
360!COMPILED && goog.global.CLOSURE_CSS_NAME_MAPPING && (goog.cssNameMapping_ = goog.global.CLOSURE_CSS_NAME_MAPPING);
361goog.getMsg = function(a, b) {
362  var c = b || {}, d;
363  for(d in c) {
364    var e = ("" + c[d]).replace(/\$/g, "$$$$");
365    a = a.replace(RegExp("\\{\\$" + d + "\\}", "gi"), e)
366  }
367  return a
368};
369goog.getMsgWithFallback = function(a, b) {
370  return a
371};
372goog.exportSymbol = function(a, b, c) {
373  goog.exportPath_(a, b, c)
374};
375goog.exportProperty = function(a, b, c) {
376  a[b] = c
377};
378goog.inherits = function(a, b) {
379  function c() {
380  }
381  c.prototype = b.prototype;
382  a.superClass_ = b.prototype;
383  a.prototype = new c;
384  a.prototype.constructor = a
385};
386goog.base = function(a, b, c) {
387  var d = arguments.callee.caller;
388  if(goog.DEBUG && !d) {
389    throw Error("arguments.caller not defined.  goog.base() expects not to be running in strict mode. See http://www.ecma-international.org/ecma-262/5.1/#sec-C");
390  }
391  if(d.superClass_) {
392    return d.superClass_.constructor.apply(a, Array.prototype.slice.call(arguments, 1))
393  }
394  for(var e = Array.prototype.slice.call(arguments, 2), f = !1, g = a.constructor;g;g = g.superClass_ && g.superClass_.constructor) {
395    if(g.prototype[b] === d) {
396      f = !0
397    }else {
398      if(f) {
399        return g.prototype[b].apply(a, e)
400      }
401    }
402  }
403  if(a[b] === d) {
404    return a.constructor.prototype[b].apply(a, e)
405  }
406  throw Error("goog.base called from a method of one name to a method of a different name");
407};
408goog.scope = function(a) {
409  a.call(goog.global)
410};
411var axs = {};
412axs.browserUtils = {};
413axs.browserUtils.matchSelector = function(a, b) {
414  return a.webkitMatchesSelector ? a.webkitMatchesSelector(b) : a.mozMatchesSelector ? a.mozMatchesSelector(b) : !1
415};
416axs.constants = {};
417axs.constants.ARIA_ROLES = {alert:{namefrom:["author"], parent:["region"]}, alertdialog:{namefrom:["author"], namerequired:!0, parent:["alert", "dialog"]}, application:{namefrom:["author"], namerequired:!0, parent:["landmark"]}, article:{namefrom:["author"], parent:["document", "region"]}, banner:{namefrom:["author"], parent:["landmark"]}, button:{childpresentational:!0, namefrom:["contents", "author"], namerequired:!0, parent:["command"], properties:["aria-expanded", "aria-pressed"]}, checkbox:{namefrom:["contents",
418"author"], namerequired:!0, parent:["input"], requiredProperties:["aria-checked"], properties:["aria-checked"]}, columnheader:{namefrom:["contents", "author"], namerequired:!0, parent:["gridcell", "sectionhead", "widget"], properties:["aria-sort"]}, combobox:{mustcontain:["listbox", "textbox"], namefrom:["author"], namerequired:!0, parent:["select"], requiredProperties:["aria-expanded"], properties:["aria-expanded", "aria-autocomplete", "aria-required"]}, command:{"abstract":!0, namefrom:["author"],
419parent:["widget"]}, complementary:{namefrom:["author"], parent:["landmark"]}, composite:{"abstract":!0, childpresentational:!1, namefrom:["author"], parent:["widget"], properties:["aria-activedescendant"]}, contentinfo:{namefrom:["author"], parent:["landmark"]}, definition:{namefrom:["author"], parent:["section"]}, dialog:{namefrom:["author"], namerequired:!0, parent:["window"]}, directory:{namefrom:["contents", "author"], parent:["list"]}, document:{namefrom:[" author"], namerequired:!0, parent:["structure"],
420properties:["aria-expanded"]}, form:{namefrom:["author"], parent:["landmark"]}, grid:{mustcontain:["row", "rowgroup"], namefrom:["author"], namerequired:!0, parent:["composite", "region"], properties:["aria-level", "aria-multiselectable", "aria-readonly"]}, gridcell:{namefrom:["contents", "author"], namerequired:!0, parent:["section", "widget"], properties:["aria-readonly", "aria-required", "aria-selected"]}, group:{namefrom:[" author"], parent:["section"], properties:["aria-activedescendant"]},
421heading:{namerequired:!0, parent:["sectionhead"], properties:["aria-level"]}, img:{childpresentational:!0, namefrom:["author"], namerequired:!0, parent:["section"]}, input:{"abstract":!0, namefrom:["author"], parent:["widget"]}, landmark:{"abstract":!0, namefrom:["contents", "author"], namerequired:!1, parent:["region"]}, link:{namefrom:["contents", "author"], namerequired:!0, parent:["command"], properties:["aria-expanded"]}, list:{mustcontain:["group", "listitem"], namefrom:["author"], parent:["region"]},
422listbox:{mustcontain:["option"], namefrom:["author"], namerequired:!0, parent:["list", "select"], properties:["aria-multiselectable", "aria-required"]}, listitem:{namefrom:["contents", "author"], namerequired:!0, parent:["section"], properties:["aria-level", "aria-posinset", "aria-setsize"]}, log:{namefrom:[" author"], namerequired:!0, parent:["region"]}, main:{namefrom:["author"], parent:["landmark"]}, marquee:{namerequired:!0, parent:["section"]}, math:{childpresentational:!0, namefrom:["author"],
423parent:["section"]}, menu:{mustcontain:["group", "menuitemradio", "menuitem", "menuitemcheckbox"], namefrom:["author"], namerequired:!0, parent:["list", "select"]}, menubar:{namefrom:["author"], parent:["menu"]}, menuitem:{namefrom:["contents", "author"], namerequired:!0, parent:["command"]}, menuitemcheckbox:{namefrom:["contents", "author"], namerequired:!0, parent:["checkbox", "menuitem"]}, menuitemradio:{namefrom:["contents", "author"], namerequired:!0, parent:["menuitemcheckbox", "radio"]}, navigation:{namefrom:["author"],
424parent:["landmark"]}, note:{namefrom:["author"], parent:["section"]}, option:{namefrom:["contents", "author"], namerequired:!0, parent:["input"], properties:["aria-checked", "aria-posinset", "aria-selected", "aria-setsize"]}, presentation:{parent:["structure"]}, progressbar:{childpresentational:!0, namefrom:["author"], namerequired:!0, parent:["range"]}, radio:{namefrom:["contents", "author"], namerequired:!0, parent:["checkbox", "option"]}, radiogroup:{mustcontain:["radio"], namefrom:["author"],
425namerequired:!0, parent:["select"], properties:["aria-required"]}, range:{"abstract":!0, namefrom:["author"], parent:["widget"], properties:["aria-valuemax", "aria-valuemin", "aria-valuenow", "aria-valuetext"]}, region:{namefrom:[" author"], parent:["section"]}, roletype:{"abstract":!0, properties:"aria-atomic aria-busy aria-controls aria-describedby aria-disabled aria-dropeffect aria-flowto aria-grabbed aria-haspopup aria-hidden aria-invalid aria-label aria-labelledby aria-live aria-owns aria-relevant".split(" ")},
426row:{mustcontain:["columnheader", "gridcell", "rowheader"], namefrom:["contents", "author"], parent:["group", "widget"], properties:["aria-level", "aria-selected"]}, rowgroup:{mustcontain:["row"], namefrom:["contents", "author"], parent:["group"]}, rowheader:{namefrom:["contents", "author"], namerequired:!0, parent:["gridcell", "sectionhead", "widget"], properties:["aria-sort"]}, search:{namefrom:["author"], parent:["landmark"]}, section:{"abstract":!0, namefrom:["contents", "author"], parent:["structure"],
427properties:["aria-expanded"]}, sectionhead:{"abstract":!0, namefrom:["contents", "author"], parent:["structure"], properties:["aria-expanded"]}, select:{"abstract":!0, namefrom:["author"], parent:["composite", "group", "input"]}, separator:{childpresentational:!0, namefrom:["author"], parent:["structure"], properties:["aria-expanded", "aria-orientation"]}, scrollbar:{childpresentational:!0, namefrom:["author"], namerequired:!1, parent:["input", "range"], requiredProperties:["aria-controls", "aria-orientation",
428"aria-valuemax", "aria-valuemin", "aria-valuenow"], properties:["aria-controls", "aria-orientation", "aria-valuemax", "aria-valuemin", "aria-valuenow"]}, slider:{childpresentational:!0, namefrom:["author"], namerequired:!0, parent:["input", "range"], requiredProperties:["aria-valuemax", "aria-valuemin", "aria-valuenow"], properties:["aria-valuemax", "aria-valuemin", "aria-valuenow", "aria-orientation"]}, spinbutton:{namefrom:["author"], namerequired:!0, parent:["input", "range"], requiredProperties:["aria-valuemax",
429"aria-valuemin", "aria-valuenow"], properties:["aria-valuemax", "aria-valuemin", "aria-valuenow", "aria-required"]}, status:{parent:["region"]}, structure:{"abstract":!0, parent:["roletype"]}, tab:{namefrom:["contents", "author"], parent:["sectionhead", "widget"], properties:["aria-selected"]}, tablist:{mustcontain:["tab"], namefrom:["author"], parent:["composite", "directory"], properties:["aria-level"]}, tabpanel:{namefrom:["author"], namerequired:!0, parent:["region"]}, textbox:{namefrom:["author"],
430namerequired:!0, parent:["input"], properties:["aria-activedescendant", "aria-autocomplete", "aria-multiline", "aria-readonly", "aria-required"]}, timer:{namefrom:["author"], namerequired:!0, parent:["status"]}, toolbar:{namefrom:["author"], parent:["group"]}, tooltip:{namerequired:!0, parent:["section"]}, tree:{mustcontain:["group", "treeitem"], namefrom:["author"], namerequired:!0, parent:["select"], properties:["aria-multiselectable", "aria-required"]}, treegrid:{mustcontain:["row"], namefrom:["author"],
431namerequired:!0, parent:["grid", "tree"]}, treeitem:{namefrom:["contents", "author"], namerequired:!0, parent:["listitem", "option"]}, widget:{"abstract":!0, parent:["roletype"]}, window:{"abstract":!0, namefrom:[" author"], parent:["roletype"], properties:["aria-expanded"]}};
432axs.constants.WIDGET_ROLES = {};
433axs.constants.addAllParentRolesToSet_ = function(a, b) {
434  if(a.parent) {
435    for(var c = a.parent, d = 0;d < c.length;d++) {
436      var e = c[d];
437      b[e] = !0;
438      axs.constants.addAllParentRolesToSet_(axs.constants.ARIA_ROLES[e], b)
439    }
440  }
441};
442axs.constants.addAllPropertiesToSet_ = function(a, b, c) {
443  var d = a[b];
444  if(d) {
445    for(var e = 0;e < d.length;e++) {
446      c[d[e]] = !0
447    }
448  }
449  if(a.parent) {
450    for(a = a.parent, d = 0;d < a.length;d++) {
451      axs.constants.addAllPropertiesToSet_(axs.constants.ARIA_ROLES[a[d]], b, c)
452    }
453  }
454};
455for(var roleName in axs.constants.ARIA_ROLES) {
456  var role = axs.constants.ARIA_ROLES[roleName], propertiesSet = {};
457  axs.constants.addAllPropertiesToSet_(role, "properties", propertiesSet);
458  role.propertiesSet = propertiesSet;
459  var requiredPropertiesSet = {};
460  axs.constants.addAllPropertiesToSet_(role, "requiredProperties", requiredPropertiesSet);
461  role.requiredPropertiesSet = requiredPropertiesSet;
462  var parentRolesSet = {};
463  axs.constants.addAllParentRolesToSet_(role, parentRolesSet);
464  role.allParentRolesSet = parentRolesSet;
465  "widget" in parentRolesSet && (axs.constants.WIDGET_ROLES[roleName] = role)
466}
467axs.constants.ARIA_PROPERTIES = {activedescendant:{type:"property", valueType:"idref"}, atomic:{defaultValue:"false", type:"property", valueType:"boolean"}, autocomplete:{defaultValue:"none", type:"property", valueType:"token", values:["inline", "list", "both", "none"]}, busy:{defaultValue:"false", type:"state", valueType:"boolean"}, checked:{defaultValue:"undefined", type:"state", valueType:"token", values:["true", "false", "mixed", "undefined"]}, controls:{type:"property", valueType:"idref_list"},
468describedby:{type:"property", valueType:"idref_list"}, disabled:{defaultValue:"false", type:"state", valueType:"boolean"}, dropeffect:{defaultValue:"none", type:"property", valueType:"token_list", values:"copy move link execute popup none".split(" ")}, expanded:{defaultValue:"undefined", type:"state", valueType:"token", values:["true", "false", "undefined"]}, flowto:{type:"property", valueType:"idref_list"}, grabbed:{defaultValue:"undefined", type:"state", valueType:"token", values:["true", "false",
469"undefined"]}, haspopup:{defaultValue:"false", type:"property", valueType:"boolean"}, hidden:{defaultValue:"false", type:"state", valueType:"boolean"}, invalid:{defaultValue:"false", type:"state", valueType:"token", values:["grammar", "false", "spelling", "true"]}, label:{type:"property", valueType:"string"}, labelledby:{type:"property", valueType:"idref_list"}, level:{type:"property", valueType:"integer"}, live:{defaultValue:"off", type:"property", valueType:"token", values:["off", "polite", "assertive"]},
470multiline:{defaultValue:"false", type:"property", valueType:"boolean"}, multiselectable:{defaultValue:"false", type:"property", valueType:"boolean"}, orientation:{defaultValue:"vertical", type:"property", valueType:"token", values:["horizontal", "vertical"]}, owns:{type:"property", valueType:"idref_list"}, posinset:{type:"property", valueType:"integer"}, pressed:{defaultValue:"undefined", type:"state", valueType:"token", values:["true", "false", "mixed", "undefined"]}, readonly:{defaultValue:"false",
471type:"property", valueType:"boolean"}, relevant:{defaultValue:"additions text", type:"property", valueType:"token_list", values:["additions", "removals", "text", "all"]}, required:{defaultValue:"false", type:"property", valueType:"boolean"}, selected:{defaultValue:"undefined", type:"state", valueType:"token", values:["true", "false", "undefined"]}, setsize:{type:"property", valueType:"integer"}, sort:{defaultValue:"none", type:"property", valueType:"token", values:["ascending", "descending", "none",
472"other"]}, valuemax:{type:"property", valueType:"decimal"}, valuemin:{type:"property", valueType:"decimal"}, valuenow:{type:"property", valueType:"decimal"}, valuetext:{type:"property", valueType:"string"}};
473axs.constants.GLOBAL_PROPERTIES = "aria-atomic aria-busy aria-controls aria-describedby aria-disabled aria-dropeffect aria-flowto aria-grabbed aria-haspopup aria-hidden aria-invalid aria-label aria-labelledby aria-live aria-owns aria-relevant".split(" ");
474axs.constants.NO_ROLE_NAME = " ";
475axs.constants.WIDGET_ROLE_TO_NAME = {alert:"aria_role_alert", alertdialog:"aria_role_alertdialog", button:"aria_role_button", checkbox:"aria_role_checkbox", columnheader:"aria_role_columnheader", combobox:"aria_role_combobox", dialog:"aria_role_dialog", grid:"aria_role_grid", gridcell:"aria_role_gridcell", link:"aria_role_link", listbox:"aria_role_listbox", log:"aria_role_log", marquee:"aria_role_marquee", menu:"aria_role_menu", menubar:"aria_role_menubar", menuitem:"aria_role_menuitem", menuitemcheckbox:"aria_role_menuitemcheckbox",
476menuitemradio:"aria_role_menuitemradio", option:axs.constants.NO_ROLE_NAME, progressbar:"aria_role_progressbar", radio:"aria_role_radio", radiogroup:"aria_role_radiogroup", rowheader:"aria_role_rowheader", scrollbar:"aria_role_scrollbar", slider:"aria_role_slider", spinbutton:"aria_role_spinbutton", status:"aria_role_status", tab:"aria_role_tab", tabpanel:"aria_role_tabpanel", textbox:"aria_role_textbox", timer:"aria_role_timer", toolbar:"aria_role_toolbar", tooltip:"aria_role_tooltip", treeitem:"aria_role_treeitem"};
477axs.constants.STRUCTURE_ROLE_TO_NAME = {article:"aria_role_article", application:"aria_role_application", banner:"aria_role_banner", columnheader:"aria_role_columnheader", complementary:"aria_role_complementary", contentinfo:"aria_role_contentinfo", definition:"aria_role_definition", directory:"aria_role_directory", document:"aria_role_document", form:"aria_role_form", group:"aria_role_group", heading:"aria_role_heading", img:"aria_role_img", list:"aria_role_list", listitem:"aria_role_listitem",
478main:"aria_role_main", math:"aria_role_math", navigation:"aria_role_navigation", note:"aria_role_note", region:"aria_role_region", rowheader:"aria_role_rowheader", search:"aria_role_search", separator:"aria_role_separator"};
479axs.constants.ATTRIBUTE_VALUE_TO_STATUS = [{name:"aria-autocomplete", values:{inline:"aria_autocomplete_inline", list:"aria_autocomplete_list", both:"aria_autocomplete_both"}}, {name:"aria-checked", values:{"true":"aria_checked_true", "false":"aria_checked_false", mixed:"aria_checked_mixed"}}, {name:"aria-disabled", values:{"true":"aria_disabled_true"}}, {name:"aria-expanded", values:{"true":"aria_expanded_true", "false":"aria_expanded_false"}}, {name:"aria-invalid", values:{"true":"aria_invalid_true",
480grammar:"aria_invalid_grammar", spelling:"aria_invalid_spelling"}}, {name:"aria-multiline", values:{"true":"aria_multiline_true"}}, {name:"aria-multiselectable", values:{"true":"aria_multiselectable_true"}}, {name:"aria-pressed", values:{"true":"aria_pressed_true", "false":"aria_pressed_false", mixed:"aria_pressed_mixed"}}, {name:"aria-readonly", values:{"true":"aria_readonly_true"}}, {name:"aria-required", values:{"true":"aria_required_true"}}, {name:"aria-selected", values:{"true":"aria_selected_true",
481"false":"aria_selected_false"}}];
482axs.constants.INPUT_TYPE_TO_INFORMATION_TABLE_MSG = {button:"input_type_button", checkbox:"input_type_checkbox", color:"input_type_color", datetime:"input_type_datetime", "datetime-local":"input_type_datetime_local", date:"input_type_date", email:"input_type_email", file:"input_type_file", image:"input_type_image", month:"input_type_month", number:"input_type_number", password:"input_type_password", radio:"input_type_radio", range:"input_type_range", reset:"input_type_reset", search:"input_type_search",
483submit:"input_type_submit", tel:"input_type_tel", text:"input_type_text", url:"input_type_url", week:"input_type_week"};
484axs.constants.TAG_TO_INFORMATION_TABLE_VERBOSE_MSG = {A:"tag_link", BUTTON:"tag_button", H1:"tag_h1", H2:"tag_h2", H3:"tag_h3", H4:"tag_h4", H5:"tag_h5", H6:"tag_h6", LI:"tag_li", OL:"tag_ol", SELECT:"tag_select", TEXTAREA:"tag_textarea", UL:"tag_ul", SECTION:"tag_section", NAV:"tag_nav", ARTICLE:"tag_article", ASIDE:"tag_aside", HGROUP:"tag_hgroup", HEADER:"tag_header", FOOTER:"tag_footer", TIME:"tag_time", MARK:"tag_mark"};
485axs.constants.TAG_TO_INFORMATION_TABLE_BRIEF_MSG = {BUTTON:"tag_button", SELECT:"tag_select", TEXTAREA:"tag_textarea"};
486axs.constants.MIXED_VALUES = {"true":!0, "false":!0, mixed:!0};
487(function() {
488  for(var a in axs.constants.ARIA_PROPERTIES) {
489    var b = axs.constants.ARIA_PROPERTIES[a];
490    if(b.values) {
491      for(var c = {}, d = 0;d < b.values.length;d++) {
492        c[b.values[d]] = !0
493      }
494      b.valuesSet = c
495    }
496  }
497})();
498axs.constants.Severity = {INFO:"Info", WARNING:"Warning", SEVERE:"Severe"};
499axs.constants.AuditResult = {PASS:"PASS", FAIL:"FAIL", NA:"NA"};
500axs.constants.InlineElements = {TT:!0, I:!0, B:!0, BIG:!0, SMALL:!0, EM:!0, STRONG:!0, DFN:!0, CODE:!0, SAMP:!0, KBD:!0, VAR:!0, CITE:!0, ABBR:!0, ACRONYM:!0, A:!0, IMG:!0, OBJECT:!0, BR:!0, SCRIPT:!0, MAP:!0, Q:!0, SUB:!0, SUP:!0, SPAN:!0, BDO:!0, INPUT:!0, SELECT:!0, TEXTAREA:!0, LABEL:!0, BUTTON:!0};
501axs.utils = {};
502axs.utils.FOCUSABLE_ELEMENTS_SELECTOR = "input:not([type=hidden]):not([disabled]),select:not([disabled]),textarea:not([disabled]),button:not([disabled]),a[href],iframe,[tabindex]";
503axs.utils.Color = function(a, b, c, d) {
504  this.red = a;
505  this.green = b;
506  this.blue = c;
507  this.alpha = d
508};
509axs.utils.calculateContrastRatio = function(a, b) {
510  if(!a || !b) {
511    return null
512  }
513  1 > a.alpha && (a = axs.utils.flattenColors(a, b));
514  var c = axs.utils.calculateLuminance(a), d = axs.utils.calculateLuminance(b);
515  return(Math.max(c, d) + 0.05) / (Math.min(c, d) + 0.05)
516};
517axs.utils.luminanceRatio = function(a, b) {
518  return(Math.max(a, b) + 0.05) / (Math.min(a, b) + 0.05)
519};
520axs.utils.asElement = function(a) {
521  switch(a.nodeType) {
522    case Node.COMMENT_NODE:
523      return null;
524    case Node.ELEMENT_NODE:
525      if("script" == a.tagName.toLowerCase()) {
526        return null
527      }
528      break;
529    case Node.TEXT_NODE:
530      a = a.parentElement;
531      break;
532    default:
533      return console.warn("Unhandled node type: ", a.nodeType), null
534  }
535  return a
536};
537axs.utils.elementIsTransparent = function(a) {
538  return"0" == a.style.opacity
539};
540axs.utils.elementHasZeroArea = function(a) {
541  a = a.getBoundingClientRect();
542  var b = a.top - a.bottom;
543  return a.right - a.left && b ? !1 : !0
544};
545axs.utils.elementIsOutsideScrollArea = function(a) {
546  a = a.getBoundingClientRect();
547  var b = document.body.scrollWidth, c = document.body.scrollTop, d = document.body.scrollLeft;
548  return a.top >= document.body.scrollHeight || a.bottom <= -c || a.left >= b || a.right <= -d ? !0 : !1
549};
550axs.utils.isAncestor = function(a, b) {
551  return null == b ? !1 : b === a ? !0 : axs.utils.isAncestor(a, b.parentNode)
552};
553axs.utils.overlappingElements = function(a) {
554  if(axs.utils.elementHasZeroArea(a)) {
555    return null
556  }
557  for(var b = [], c = a.getClientRects(), d = 0;d < c.length;d++) {
558    var e = c[d], e = document.elementFromPoint((e.left + e.right) / 2, (e.top + e.bottom) / 2);
559    if(null != e && e != a && !axs.utils.isAncestor(e, a) && !axs.utils.isAncestor(a, e)) {
560      var f = window.getComputedStyle(e, null);
561      f && (f = axs.utils.getBgColor(f, e)) && 0 < f.alpha && 0 > b.indexOf(e) && b.push(e)
562    }
563  }
564  return b
565};
566axs.utils.elementIsHtmlControl = function(a) {
567  var b = a.ownerDocument.defaultView;
568  return a instanceof b.HTMLButtonElement || a instanceof b.HTMLInputElement || a instanceof b.HTMLSelectElement || a instanceof b.HTMLTextAreaElement ? !0 : !1
569};
570axs.utils.elementIsAriaWidget = function(a) {
571  return a.hasAttribute("role") && (a = a.getAttribute("role")) && (a = axs.constants.ARIA_ROLES[a]) && "widget" in a.allParentRolesSet ? !0 : !1
572};
573axs.utils.elementIsVisible = function(a) {
574  return axs.utils.elementIsTransparent(a) || axs.utils.elementHasZeroArea(a) || axs.utils.elementIsOutsideScrollArea(a) || axs.utils.overlappingElements(a).length ? !1 : !0
575};
576axs.utils.isLargeFont = function(a) {
577  var b = a.fontSize;
578  a = "bold" == a.fontWeight;
579  var c = b.match(/(\d+)px/);
580  if(c) {
581    b = parseInt(c[1], 10);
582    if(c = window.getComputedStyle(document.body, null).fontSize.match(/(\d+)px/)) {
583      var d = parseInt(c[1], 10), c = 1.2 * d, d = 1.5 * d
584    }else {
585      c = 19.2, d = 24
586    }
587    return a && b >= c || b >= d
588  }
589  if(c = b.match(/(\d+)em/)) {
590    return b = parseInt(c[1], 10), a && 1.2 <= b || 1.5 <= b ? !0 : !1
591  }
592  if(c = b.match(/(\d+)%/)) {
593    return b = parseInt(c[1], 10), a && 120 <= b || 150 <= b ? !0 : !1
594  }
595  if(c = b.match(/(\d+)pt/)) {
596    if(b = parseInt(c[1], 10), a && 14 <= b || 18 <= b) {
597      return!0
598    }
599  }
600  return!1
601};
602axs.utils.getBgColor = function(a, b) {
603  var c = axs.utils.parseColor(a.backgroundColor);
604  if(!c) {
605    return null
606  }
607  1 > a.opacity && (c.alpha *= a.opacity);
608  if(1 > c.alpha) {
609    var d = axs.utils.getParentBgColor(b);
610    if(null == d) {
611      return null
612    }
613    c = axs.utils.flattenColors(c, d)
614  }
615  return c
616};
617axs.utils.getParentBgColor = function(a) {
618  var b = a;
619  a = [];
620  for(var c = null;b = b.parentElement;) {
621    var d = window.getComputedStyle(b, null);
622    if(d) {
623      var e = axs.utils.parseColor(d.backgroundColor);
624      if(e && (1 > d.opacity && (e.alpha *= d.opacity), 0 != e.alpha && (a.push(e), 1 == e.alpha))) {
625        c = !0;
626        break
627      }
628    }
629  }
630  c || a.push(new axs.utils.Color(255, 255, 255, 1));
631  for(b = a.pop();a.length;) {
632    c = a.pop(), b = axs.utils.flattenColors(c, b)
633  }
634  return b
635};
636axs.utils.getFgColor = function(a, b, c) {
637  var d = axs.utils.parseColor(a.color);
638  if(!d) {
639    return null
640  }
641  1 > d.alpha && (d = axs.utils.flattenColors(d, c));
642  1 > a.opacity && (b = axs.utils.getParentBgColor(b), d.alpha *= a.opacity, d = axs.utils.flattenColors(d, b));
643  return d
644};
645axs.utils.parseColor = function(a) {
646  var b = a.match(/^rgb\((\d+), (\d+), (\d+)\)$/);
647  if(b) {
648    a = parseInt(b[1], 10);
649    var c = parseInt(b[2], 10), b = parseInt(b[3], 10), d;
650    return new axs.utils.Color(a, c, b, 1)
651  }
652  return(b = a.match(/^rgba\((\d+), (\d+), (\d+), (\d+(\.\d+)?)\)/)) ? (d = parseInt(b[4], 10), a = parseInt(b[1], 10), c = parseInt(b[2], 10), b = parseInt(b[3], 10), new axs.utils.Color(a, c, b, d)) : null
653};
654axs.utils.colorChannelToString = function(a) {
655  a = Math.round(a);
656  return 15 >= a ? "0" + a.toString(16) : a.toString(16)
657};
658axs.utils.colorToString = function(a) {
659  return 1 == a.alpha ? "#" + axs.utils.colorChannelToString(a.red) + axs.utils.colorChannelToString(a.green) + axs.utils.colorChannelToString(a.blue) : "rgba(" + [a.red, a.green, a.blue, a.alpha].join() + ")"
660};
661axs.utils.luminanceFromContrastRatio = function(a, b, c) {
662  return c ? (a + 0.05) * b - 0.05 : (a + 0.05) / b - 0.05
663};
664axs.utils.translateColor = function(a, b) {
665  var c = a[0], c = (b - c) / ((c > b ? 0 : 1) - c);
666  return axs.utils.fromYCC([b, a[1] - a[1] * c, a[2] - a[2] * c])
667};
668axs.utils.suggestColors = function(a, b, c, d) {
669  if(!axs.utils.isLowContrast(c, d, !0)) {
670    return null
671  }
672  var e = {}, f = axs.utils.calculateLuminance(a), g = axs.utils.calculateLuminance(b), h = axs.utils.isLargeFont(d) ? 3 : 4.5, k = axs.utils.isLargeFont(d) ? 4.5 : 7, m = g > f, l = axs.utils.luminanceFromContrastRatio(f, h + 0.02, m), n = axs.utils.luminanceFromContrastRatio(f, k + 0.02, m), q = axs.utils.toYCC(b);
673  if(axs.utils.isLowContrast(c, d, !1) && 1 >= l && 0 <= l) {
674    var p = axs.utils.translateColor(q, l), l = axs.utils.calculateContrastRatio(p, a);
675    axs.utils.calculateLuminance(p);
676    f = {};
677    f.fg = axs.utils.colorToString(p);
678    f.bg = axs.utils.colorToString(a);
679    f.contrast = l.toFixed(2);
680    e.AA = f
681  }
682  axs.utils.isLowContrast(c, d, !0) && 1 >= n && 0 <= n && (n = axs.utils.translateColor(q, n), l = axs.utils.calculateContrastRatio(n, a), f = {}, f.fg = axs.utils.colorToString(n), f.bg = axs.utils.colorToString(a), f.contrast = l.toFixed(2), e.AAA = f);
683  h = axs.utils.luminanceFromContrastRatio(g, h + 0.02, !m);
684  g = axs.utils.luminanceFromContrastRatio(g, k + 0.02, !m);
685  a = axs.utils.toYCC(a);
686  !("AA" in e) && axs.utils.isLowContrast(c, d, !1) && 1 >= h && 0 <= h && (k = axs.utils.translateColor(a, h), l = axs.utils.calculateContrastRatio(b, k), f = {}, f.bg = axs.utils.colorToString(k), f.fg = axs.utils.colorToString(b), f.contrast = l.toFixed(2), e.AA = f);
687  !("AAA" in e) && axs.utils.isLowContrast(c, d, !0) && 1 >= g && 0 <= g && (c = axs.utils.translateColor(a, g), l = axs.utils.calculateContrastRatio(b, c), f = {}, f.bg = axs.utils.colorToString(c), f.fg = axs.utils.colorToString(b), f.contrast = l.toFixed(2), e.AAA = f);
688  return e
689};
690axs.utils.flattenColors = function(a, b) {
691  var c = a.alpha;
692  return new axs.utils.Color((1 - c) * b.red + c * a.red, (1 - c) * b.green + c * a.green, (1 - c) * b.blue + c * a.blue, a.alpha + b.alpha * (1 - a.alpha))
693};
694axs.utils.calculateLuminance = function(a) {
695  return axs.utils.toYCC(a)[0]
696};
697axs.utils.RGBToYCCMatrix = function(a, b) {
698  return[[a, 1 - a - b, b], [-a / (2 - 2 * b), (a + b - 1) / (2 - 2 * b), (1 - b) / (2 - 2 * b)], [(1 - a) / (2 - 2 * a), (a + b - 1) / (2 - 2 * a), -b / (2 - 2 * a)]]
699};
700axs.utils.invert3x3Matrix = function(a) {
701  var b = a[0][0], c = a[0][1], d = a[0][2], e = a[1][0], f = a[1][1], g = a[1][2], h = a[2][0], k = a[2][1];
702  a = a[2][2];
703  return axs.utils.scalarMultiplyMatrix([[f * a - g * k, d * k - c * a, c * g - d * f], [g * h - e * a, b * a - d * h, d * e - b * g], [e * k - f * h, h * c - b * k, b * f - c * e]], 1 / (b * (f * a - g * k) - c * (a * e - g * h) + d * (e * k - f * h)))
704};
705axs.utils.scalarMultiplyMatrix = function(a, b) {
706  for(var c = [[], [], []], d = 0;3 > d;d++) {
707    for(var e = 0;3 > e;e++) {
708      c[d][e] = a[d][e] * b
709    }
710  }
711  return c
712};
713axs.utils.kR = 0.2126;
714axs.utils.kB = 0.0722;
715axs.utils.YCC_MATRIX = axs.utils.RGBToYCCMatrix(axs.utils.kR, axs.utils.kB);
716axs.utils.INVERTED_YCC_MATRIX = axs.utils.invert3x3Matrix(axs.utils.YCC_MATRIX);
717axs.utils.convertColor = function(a, b) {
718  var c = b[0], d = b[1], e = b[2];
719  return[a[0][0] * c + a[0][1] * d + a[0][2] * e, a[1][0] * c + a[1][1] * d + a[1][2] * e, a[2][0] * c + a[2][1] * d + a[2][2] * e]
720};
721axs.utils.multiplyMatrices = function(a, b) {
722  for(var c = [[], [], []], d = 0;3 > d;d++) {
723    for(var e = 0;3 > e;e++) {
724      c[d][e] = a[d][0] * b[0][e] + a[d][1] * b[1][e] + a[d][2] * b[2][e]
725    }
726  }
727  return c
728};
729axs.utils.toYCC = function(a) {
730  var b = a.red / 255, c = a.green / 255;
731  a = a.blue / 255;
732  b = 0.03928 >= b ? b / 12.92 : Math.pow((b + 0.055) / 1.055, 2.4);
733  c = 0.03928 >= c ? c / 12.92 : Math.pow((c + 0.055) / 1.055, 2.4);
734  a = 0.03928 >= a ? a / 12.92 : Math.pow((a + 0.055) / 1.055, 2.4);
735  return axs.utils.convertColor(axs.utils.YCC_MATRIX, [b, c, a])
736};
737axs.utils.fromYCC = function(a) {
738  var b = axs.utils.convertColor(axs.utils.INVERTED_YCC_MATRIX, a), c = b[0];
739  a = b[1];
740  b = b[2];
741  c = 0.00303949 >= c ? 12.92 * c : 1.055 * Math.pow(c, 1 / 2.4) - 0.055;
742  a = 0.00303949 >= a ? 12.92 * a : 1.055 * Math.pow(a, 1 / 2.4) - 0.055;
743  b = 0.00303949 >= b ? 12.92 * b : 1.055 * Math.pow(b, 1 / 2.4) - 0.055;
744  c = Math.min(Math.max(Math.round(255 * c), 0), 255);
745  a = Math.min(Math.max(Math.round(255 * a), 0), 255);
746  b = Math.min(Math.max(Math.round(255 * b), 0), 255);
747  return new axs.utils.Color(c, a, b, 1)
748};
749axs.utils.scalarMultiplyMatrix = function(a, b) {
750  for(var c = [[], [], []], d = 0;3 > d;d++) {
751    for(var e = 0;3 > e;e++) {
752      c[d][e] = a[d][e] * b
753    }
754  }
755  return c
756};
757axs.utils.multiplyMatrices = function(a, b) {
758  for(var c = [[], [], []], d = 0;3 > d;d++) {
759    for(var e = 0;3 > e;e++) {
760      c[d][e] = a[d][0] * b[0][e] + a[d][1] * b[1][e] + a[d][2] * b[2][e]
761    }
762  }
763  return c
764};
765axs.utils.getContrastRatioForElement = function(a) {
766  var b = window.getComputedStyle(a, null);
767  return axs.utils.getContrastRatioForElementWithComputedStyle(b, a)
768};
769axs.utils.getContrastRatioForElementWithComputedStyle = function(a, b) {
770  if(axs.utils.isElementHidden(b)) {
771    return null
772  }
773  var c = axs.utils.getBgColor(a, b);
774  if(!c) {
775    return null
776  }
777  var d = axs.utils.getFgColor(a, b, c);
778  return d ? axs.utils.calculateContrastRatio(d, c) : null
779};
780axs.utils.isNativeTextElement = function(a) {
781  var b = a.tagName.toLowerCase();
782  a = a.type ? a.type.toLowerCase() : "";
783  if("textarea" == b) {
784    return!0
785  }
786  if("input" != b) {
787    return!1
788  }
789  switch(a) {
790    case "email":
791    ;
792    case "number":
793    ;
794    case "password":
795    ;
796    case "search":
797    ;
798    case "text":
799    ;
800    case "tel":
801    ;
802    case "url":
803    ;
804    case "":
805      return!0;
806    default:
807      return!1
808  }
809};
810axs.utils.isLowContrast = function(a, b, c) {
811  a = Math.round(10 * a) / 10;
812  return c ? 4.5 > a || !axs.utils.isLargeFont(b) && 7 > a : 3 > a || !axs.utils.isLargeFont(b) && 4.5 > a
813};
814axs.utils.hasLabel = function(a) {
815  var b = a.tagName.toLowerCase(), c = a.type ? a.type.toLowerCase() : "";
816  if(a.hasAttribute("aria-label") || a.hasAttribute("title") || "img" == b && a.hasAttribute("alt") || "input" == b && "image" == c && a.hasAttribute("alt") || "input" == b && ("submit" == c || "reset" == c) || a.hasAttribute("aria-labelledby") || axs.utils.isNativeTextElement(a) && a.hasAttribute("placeholder") || a.hasAttribute("id") && 0 < document.querySelectorAll('label[for="' + a.id + '"]').length) {
817    return!0
818  }
819  for(b = a.parentElement;b;) {
820    if("label" == b.tagName.toLowerCase() && b.control == a) {
821      return!0
822    }
823    b = b.parentElement
824  }
825  return!1
826};
827axs.utils.isElementHidden = function(a) {
828  if(!(a instanceof a.ownerDocument.defaultView.HTMLElement)) {
829    return!1
830  }
831  if(a.hasAttribute("chromevoxignoreariahidden")) {
832    var b = !0
833  }
834  var c = window.getComputedStyle(a, null);
835  return"none" == c.display || "hidden" == c.visibility ? !0 : a.hasAttribute("aria-hidden") && "true" == a.getAttribute("aria-hidden").toLowerCase() ? !b : !1
836};
837axs.utils.isElementOrAncestorHidden = function(a) {
838  return axs.utils.isElementHidden(a) ? !0 : a.parentElement ? axs.utils.isElementOrAncestorHidden(a.parentElement) : !1
839};
840axs.utils.isInlineElement = function(a) {
841  a = a.tagName.toUpperCase();
842  return axs.constants.InlineElements[a]
843};
844axs.utils.getRoles = function(a) {
845  if(!a.hasAttribute("role")) {
846    return!1
847  }
848  a = a.getAttribute("role").split(" ");
849  for(var b = [], c = !0, d = 0;d < a.length;d++) {
850    var e = a[d];
851    axs.constants.ARIA_ROLES[e] ? b.push({name:e, details:axs.constants.ARIA_ROLES[e], valid:!0}) : (b.push({name:e, valid:!1}), c = !1)
852  }
853  return{roles:b, valid:c}
854};
855axs.utils.getAriaPropertyValue = function(a, b, c) {
856  var d = a.replace(/^aria-/, ""), e = axs.constants.ARIA_PROPERTIES[d], d = {name:a, rawValue:b};
857  if(!e) {
858    return d.valid = !1, d.reason = '"' + a + '" is not a valid ARIA property', d
859  }
860  e = e.valueType;
861  if(!e) {
862    return d.valid = !1, d.reason = '"' + a + '" is not a valid ARIA property', d
863  }
864  switch(e) {
865    case "idref":
866      a = axs.utils.isValidIDRefValue(b, c), d.valid = a.valid, d.reason = a.reason, d.idref = a.idref;
867    case "idref_list":
868      a = b.split(/\s+/);
869      d.valid = !0;
870      for(b = 0;b < a.length;b++) {
871        e = axs.utils.isValidIDRefValue(a[b], c), e.valid || (d.valid = !1), d.values ? d.values.push(e) : d.values = [e]
872      }
873      return d;
874    case "integer":
875    ;
876    case "decimal":
877      c = axs.utils.isValidNumber(b);
878      if(!c.valid) {
879        return d.valid = !1, d.reason = c.reason, d
880      }
881      Math.floor(c.value) != c.value ? (d.valid = !1, d.reason = "" + b + " is not a whole integer") : (d.valid = !0, d.value = c.value);
882      return d;
883    case "number":
884      c = axs.utils.isValidNumber(b), c.valid && (d.valid = !0, d.value = c.value);
885    case "string":
886      return d.valid = !0, d.value = b, d;
887    case "token":
888      return c = axs.utils.isValidTokenValue(a, b.toLowerCase()), c.valid ? (d.valid = !0, d.value = c.value) : (d.valid = !1, d.value = b, d.reason = c.reason), d;
889    case "token_list":
890      e = b.split(/\s+/);
891      d.valid = !0;
892      for(b = 0;b < e.length;b++) {
893        c = axs.utils.isValidTokenValue(a, e[b].toLowerCase()), c.valid || (d.valid = !1, d.reason ? (d.reason = [d.reason], d.reason.push(c.reason)) : (d.reason = c.reason, d.possibleValues = c.possibleValues)), d.values ? d.values.push(c.value) : d.values = [c.value]
894      }
895      return d;
896    case "tristate":
897      return c = axs.utils.isPossibleValue(b.toLowerCase(), axs.constants.MIXED_VALUES, a), c.valid ? (d.valid = !0, d.value = c.value) : (d.valid = !1, d.value = b, d.reason = c.reason), d;
898    case "boolean":
899      return c = axs.utils.isValidBoolean(b), c.valid ? (d.valid = !0, d.value = c.value) : (d.valid = !1, d.value = b, d.reason = c.reason), d
900  }
901  d.valid = !1;
902  d.reason = "Not a valid ARIA property";
903  return d
904};
905axs.utils.isValidTokenValue = function(a, b) {
906  var c = a.replace(/^aria-/, "");
907  return axs.utils.isPossibleValue(b, axs.constants.ARIA_PROPERTIES[c].valuesSet, a)
908};
909axs.utils.isPossibleValue = function(a, b, c) {
910  return b[a] ? {valid:!0, value:a} : {valid:!1, value:a, reason:'"' + a + '" is not a valid value for ' + c, possibleValues:Object.keys(b)}
911};
912axs.utils.isValidBoolean = function(a) {
913  try {
914    var b = JSON.parse(a)
915  }catch(c) {
916    b = ""
917  }
918  return"boolean" != typeof b ? {valid:!1, value:a, reason:'"' + a + '" is not a true/false value'} : {valid:!0, value:b}
919};
920axs.utils.isValidIDRefValue = function(a, b) {
921  return 0 == a.length ? {valid:!0, idref:a} : b.ownerDocument.getElementById(a) ? {valid:!0, idref:a} : {valid:!1, idref:a, reason:'No element with ID "' + a + '"'}
922};
923axs.utils.isValidNumber = function(a) {
924  try {
925    var b = JSON.parse(a)
926  }catch(c) {
927    return{valid:!1, value:a, reason:'"' + a + '" is not a number'}
928  }
929  return"number" != typeof b ? {valid:!1, value:a, reason:'"' + a + '" is not a number'} : {valid:!0, value:b}
930};
931axs.utils.isElementImplicitlyFocusable = function(a) {
932  var b = a.ownerDocument.defaultView;
933  return a instanceof b.HTMLAnchorElement || a instanceof b.HTMLAreaElement ? a.hasAttribute("href") : a instanceof b.HTMLInputElement || a instanceof b.HTMLSelectElement || a instanceof b.HTMLTextAreaElement || a instanceof b.HTMLButtonElement || a instanceof b.HTMLIFrameElement ? !a.disabled : !1
934};
935axs.utils.values = function(a) {
936  var b = [], c;
937  for(c in a) {
938    a.hasOwnProperty(c) && "function" != typeof a[c] && b.push(a[c])
939  }
940  return b
941};
942axs.utils.namedValues = function(a) {
943  var b = {}, c;
944  for(c in a) {
945    a.hasOwnProperty(c) && "function" != typeof a[c] && (b[c] = a[c])
946  }
947  return b
948};
949axs.utils.getQuerySelectorText = function(a) {
950  if(null == a || "HTML" == a.tagName) {
951    return"html"
952  }
953  if("BODY" == a.tagName) {
954    return"body"
955  }
956  if(a.hasAttribute) {
957    if(a.id) {
958      return"#" + a.id
959    }
960    if(a.className) {
961      for(var b = "", c = 0;c < a.classList.length;c++) {
962        b += "." + a.classList[c]
963      }
964      var d = 0;
965      if(a.parentNode) {
966        for(c = 0;c < a.parentNode.children.length;c++) {
967          var e = a.parentNode.children[c];
968          axs.browserUtils.matchSelector(e, b) && d++;
969          if(e === a) {
970            break
971          }
972        }
973      }else {
974        d = 1
975      }
976      return 1 == d ? axs.utils.getQuerySelectorText(a.parentNode) + " > " + b : axs.utils.getQuerySelectorText(a.parentNode) + " > " + b + ":nth-of-type(" + d + ")"
977    }
978    if(a.parentNode) {
979      b = a.parentNode.children;
980      d = 1;
981      for(c = 0;b[c] !== a;) {
982        b[c].tagName == a.tagName && d++, c++
983      }
984      c = "";
985      "BODY" != a.parentNode.tagName && (c = axs.utils.getQuerySelectorText(a.parentNode) + " > ");
986      return 1 == d ? c + a.tagName : c + a.tagName + ":nth-of-type(" + d + ")"
987    }
988  }else {
989    if(a.selectorText) {
990      return a.selectorText
991    }
992  }
993  return""
994};
995axs.properties = {};
996axs.properties.TEXT_CONTENT_XPATH = './/text()[normalize-space(.)!=""]/parent::*[name()!="script"]';
997axs.properties.getFocusProperties = function(a) {
998  var b = {}, c = a.getAttribute("tabindex");
999  void 0 != c ? b.tabindex = {value:c, valid:!0} : axs.utils.isElementImplicitlyFocusable(a) && (b.implicitlyFocusable = {value:!0, valid:!0});
1000  if(0 == Object.keys(b).length) {
1001    return null
1002  }
1003  var c = axs.utils.elementIsTransparent(a), d = axs.utils.elementHasZeroArea(a), e = axs.utils.elementIsOutsideScrollArea(a), f = axs.utils.overlappingElements(a);
1004  if(c || d || e || 0 < f.length) {
1005    var g = axs.utils.isElementOrAncestorHidden(a), h = {value:!1, valid:g};
1006    c && (h.transparent = !0);
1007    d && (h.zeroArea = !0);
1008    e && (h.outsideScrollArea = !0);
1009    0 < f.length && (h.overlappingElements = f);
1010    h.hidden = {value:g, reason:axs.properties.getHiddenReason(a), valid:g};
1011    b.visible = h
1012  }else {
1013    b.visible = {value:!0, valid:!0}
1014  }
1015  return b
1016};
1017axs.properties.getHiddenReason = function(a) {
1018  if(!(a && a instanceof a.ownerDocument.defaultView.HTMLElement)) {
1019    return null
1020  }
1021  if(a.hasAttribute("chromevoxignoreariahidden")) {
1022    var b = !0
1023  }
1024  var c = window.getComputedStyle(a, null);
1025  return"none" == c.display ? {property:"display: none", on:a} : "hidden" == c.visibility ? {property:"visibility: hidden", on:a} : a.hasAttribute("aria-hidden") && "true" == a.getAttribute("aria-hidden").toLowerCase() && !b ? {property:"aria-hidden", on:a} : axs.properties.getHiddenReason(a.parentElement)
1026};
1027axs.properties.getColorProperties = function(a) {
1028  var b = {};
1029  (a = axs.properties.getContrastRatioProperties(a)) && (b.contrastRatio = a);
1030  return 0 == Object.keys(b).length ? null : b
1031};
1032axs.properties.hasDirectTextDescendant = function(a) {
1033  for(var b = (a.nodeType == Node.DOCUMENT_NODE ? a : a.ownerDocument).evaluate(axs.properties.TEXT_CONTENT_XPATH, a, null, XPathResult.ANY_TYPE, null), c = !1, d = b.iterateNext();null != d;d = b.iterateNext()) {
1034    if(d === a) {
1035      c = !0;
1036      break
1037    }
1038  }
1039  return c
1040};
1041axs.properties.getContrastRatioProperties = function(a) {
1042  if(!axs.properties.hasDirectTextDescendant(a)) {
1043    return null
1044  }
1045  var b = {}, c = window.getComputedStyle(a, null), d = axs.utils.getBgColor(c, a);
1046  if(!d) {
1047    return null
1048  }
1049  b.backgroundColor = axs.utils.colorToString(d);
1050  var e = axs.utils.getFgColor(c, a, d);
1051  b.foregroundColor = axs.utils.colorToString(e);
1052  a = axs.utils.getContrastRatioForElementWithComputedStyle(c, a);
1053  if(!a) {
1054    return null
1055  }
1056  b.value = a.toFixed(2);
1057  axs.utils.isLowContrast(a, c) && (b.alert = !0);
1058  (c = axs.utils.suggestColors(d, e, a, c)) && Object.keys(c).length && (b.suggestedColors = c);
1059  return b
1060};
1061axs.properties.findTextAlternatives = function(a, b, c) {
1062  var d = c || !1;
1063  c = axs.utils.asElement(a);
1064  if(!c || !d && axs.utils.isElementOrAncestorHidden(c)) {
1065    return null
1066  }
1067  if(a.nodeType == Node.TEXT_NODE) {
1068    return c = {type:"text"}, c.text = a.textContent, c.lastWord = axs.properties.getLastWord(c.text), b.content = c, a.textContent
1069  }
1070  a = null;
1071  d || (a = axs.properties.getTextFromAriaLabelledby(c, b));
1072  if(c.hasAttribute("aria-label")) {
1073    var e = {type:"text"};
1074    e.text = c.getAttribute("aria-label");
1075    e.lastWord = axs.properties.getLastWord(e.text);
1076    a ? e.unused = !0 : d && axs.utils.elementIsHtmlControl(c) || (a = e.text);
1077    b.ariaLabel = e
1078  }
1079  c.hasAttribute("role") && "presentation" == c.getAttribute("role") || (a = axs.properties.getTextFromHostLanguageAttributes(c, b, a));
1080  if(d && axs.utils.elementIsHtmlControl(c)) {
1081    e = c.ownerDocument.defaultView;
1082    if(c instanceof e.HTMLInputElement) {
1083      var f = c;
1084      "text" == f.type && f.value && 0 < f.value.length && (b.controlValue = {text:f.value});
1085      "range" == f.type && (b.controlValue = {text:f.value})
1086    }
1087    c instanceof e.HTMLSelectElement && (b.controlValue = {text:c.value});
1088    b.controlValue && (e = b.controlValue, a ? e.unused = !0 : a = e.text)
1089  }
1090  if(d && axs.utils.elementIsAriaWidget(c)) {
1091    d = c.getAttribute("role");
1092    "textbox" == d && c.textContent && 0 < c.textContent.length && (b.controlValue = {text:c.textContent});
1093    if("slider" == d || "spinbutton" == d) {
1094      c.hasAttribute("aria-valuetext") ? b.controlValue = {text:c.getAttribute("aria-valuetext")} : c.hasAttribute("aria-valuenow") && (b.controlValue = {value:c.getAttribute("aria-valuenow"), text:"" + c.getAttribute("aria-valuenow")})
1095    }
1096    if("menu" == d) {
1097      for(var g = c.querySelectorAll("[role=menuitemcheckbox], [role=menuitemradio]"), e = [], f = 0;f < g.length;f++) {
1098        "true" == g[f].getAttribute("aria-checked") && e.push(g[f])
1099      }
1100      if(0 < e.length) {
1101        g = "";
1102        for(f = 0;f < e.length;f++) {
1103          g += axs.properties.findTextAlternatives(e[f], {}, !0), f < e.length - 1 && (g += ", ")
1104        }
1105        b.controlValue = {text:g}
1106      }
1107    }
1108    if("combobox" == d || "select" == d) {
1109      b.controlValue = {text:"TODO"}
1110    }
1111    b.controlValue && (e = b.controlValue, a ? e.unused = !0 : a = e.text)
1112  }
1113  e = !0;
1114  c.hasAttribute("role") && (d = c.getAttribute("role"), (d = axs.constants.ARIA_ROLES[d]) && (!d.namefrom || 0 > d.namefrom.indexOf("contents")) && (e = !1));
1115  (d = axs.properties.getTextFromDescendantContent(c)) && e && (e = {type:"text"}, e.text = d, e.lastWord = axs.properties.getLastWord(e.text), a ? e.unused = !0 : a = d, b.content = e);
1116  c.hasAttribute("title") && (d = {type:"string", valid:!0}, d.text = c.getAttribute("title"), d.lastWord = axs.properties.getLastWord(d.lastWord), a ? d.unused = !0 : a = d.text, b.title = d);
1117  return 0 == Object.keys(b).length && null == a ? null : a
1118};
1119axs.properties.getTextFromDescendantContent = function(a) {
1120  a = a.childNodes;
1121  for(var b = [], c = 0;c < a.length;c++) {
1122    var d = axs.properties.findTextAlternatives(a[c], {}, !0);
1123    d && 0 < d.trim().length && b.push(d.trim())
1124  }
1125  return b.length ? b.join(" ") : null
1126};
1127axs.properties.getTextFromAriaLabelledby = function(a, b) {
1128  var c = null;
1129  if(!a.hasAttribute("aria-labelledby")) {
1130    return c
1131  }
1132  for(var d = a.getAttribute("aria-labelledby").split(/\s+/), e = {valid:!0}, f = [], g = [], h = 0;h < d.length;h++) {
1133    var k = {type:"element"}, m = d[h];
1134    k.value = m;
1135    var l = document.getElementById(m);
1136    l ? (k.valid = !0, k.text = axs.properties.findTextAlternatives(l, {}, !0), k.lastWord = axs.properties.getLastWord(k.text), f.push(l.textContent.trim()), k.element = l) : (k.valid = !1, e.valid = !1, k.errorMessage = {messageKey:"noElementWithId", args:[m]});
1137    g.push(k)
1138  }
1139  0 < g.length && (g[g.length - 1].last = !0, e.values = g, e.text = f.join(" "), e.lastWord = axs.properties.getLastWord(e.text), c = e.text, b.ariaLabelledby = e);
1140  return c
1141};
1142axs.properties.getTextFromHostLanguageAttributes = function(a, b, c) {
1143  if(axs.browserUtils.matchSelector(a, "img")) {
1144    if(a.hasAttribute("alt")) {
1145      var d = {type:"string", valid:!0};
1146      d.text = a.getAttribute("alt");
1147      c ? d.unused = !0 : c = d.text;
1148      b.alt = d
1149    }else {
1150      d = {valid:!1, errorMessage:"No alt value provided"}, b.alt = d, d = a.src, "string" == typeof d && (c = d.split("/").pop(), b.filename = {text:c})
1151    }
1152  }
1153  if(axs.browserUtils.matchSelector(a, 'input:not([type="hidden"]):not([disabled]), select:not([disabled]), textarea:not([disabled]), button:not([disabled]), video:not([disabled])')) {
1154    if(a.hasAttribute("id")) {
1155      for(var d = document.querySelectorAll('label[for="' + a.id + '"]'), e = {}, f = [], g = [], h = 0;h < d.length;h++) {
1156        var k = {type:"element"}, m = d[h], l = axs.properties.findTextAlternatives(m, {}, !0);
1157        l && 0 < l.trim().length && (k.text = l.trim(), g.push(l.trim()));
1158        k.element = m;
1159        f.push(k)
1160      }
1161      0 < f.length && (f[f.length - 1].last = !0, e.values = f, e.text = g.join(" "), e.lastWord = axs.properties.getLastWord(e.text), c ? e.unused = !0 : c = e.text, b.labelFor = e)
1162    }
1163    d = a.parentElement;
1164    for(e = {};d;) {
1165      if("label" == d.tagName.toLowerCase() && (f = d, f.control == a)) {
1166        e.type = "element";
1167        e.text = axs.properties.findTextAlternatives(f, {}, !0);
1168        e.lastWord = axs.properties.getLastWord(e.text);
1169        e.element = f;
1170        break
1171      }
1172      d = d.parentElement
1173    }
1174    e.text && (c ? e.unused = !0 : c = e.text, b.labelWrapped = e);
1175    Object.keys(b).length || (b.noLabel = !0)
1176  }
1177  return c
1178};
1179axs.properties.getLastWord = function(a) {
1180  if(!a) {
1181    return null
1182  }
1183  var b = a.lastIndexOf(" ") + 1, c = a.length - 10;
1184  return a.substring(b > c ? b : c)
1185};
1186axs.properties.getTextProperties = function(a) {
1187  var b = {};
1188  a = axs.properties.findTextAlternatives(a, b);
1189  if(0 == Object.keys(b).length) {
1190    if(!a) {
1191      return null
1192    }
1193    b.hasProperties = !1
1194  }else {
1195    b.hasProperties = !0
1196  }
1197  b.computedText = a;
1198  b.lastWord = axs.properties.getLastWord(a);
1199  return b
1200};
1201axs.properties.getAriaProperties = function(a) {
1202  var b = {}, c = axs.properties.getGlobalAriaProperties(a), d;
1203  for(d in axs.constants.ARIA_PROPERTIES) {
1204    var e = "aria-" + d;
1205    if(a.hasAttribute(e)) {
1206      var f = a.getAttribute(e);
1207      c[e] = axs.utils.getAriaPropertyValue(e, f, a)
1208    }
1209  }
1210  0 < Object.keys(c).length && (b.properties = axs.utils.values(c));
1211  f = axs.utils.getRoles(a);
1212  if(!f) {
1213    return Object.keys(b).length ? b : null
1214  }
1215  b.roles = f;
1216  if(!f.valid || !f.roles) {
1217    return b
1218  }
1219  for(var e = f.roles, g = 0;g < e.length;g++) {
1220    var h = e[g];
1221    if(h.details && h.details.propertiesSet) {
1222      for(d in h.details.propertiesSet) {
1223        d in c || (a.hasAttribute(d) ? (f = a.getAttribute(d), c[d] = axs.utils.getAriaPropertyValue(d, f, a), "values" in c[d] && (f = c[d].values, f[f.length - 1].isLast = !0)) : h.details.requiredPropertiesSet[d] && (c[d] = {name:d, valid:!1, reason:"Required property not set"}))
1224      }
1225    }
1226  }
1227  0 < Object.keys(c).length && (b.properties = axs.utils.values(c));
1228  return 0 < Object.keys(b).length ? b : null
1229};
1230axs.properties.getGlobalAriaProperties = function(a) {
1231  for(var b = {}, c = 0;c < axs.constants.GLOBAL_PROPERTIES.length;c++) {
1232    var d = axs.constants.GLOBAL_PROPERTIES[c];
1233    if(a.hasAttribute(d)) {
1234      var e = a.getAttribute(d);
1235      b[d] = axs.utils.getAriaPropertyValue(d, e, a)
1236    }
1237  }
1238  return b
1239};
1240axs.properties.getVideoProperties = function(a) {
1241  if(!axs.browserUtils.matchSelector(a, "video")) {
1242    return null
1243  }
1244  var b = {};
1245  b.captionTracks = axs.properties.getTrackElements(a, "captions");
1246  b.descriptionTracks = axs.properties.getTrackElements(a, "descriptions");
1247  b.chapterTracks = axs.properties.getTrackElements(a, "chapters");
1248  return b
1249};
1250axs.properties.getTrackElements = function(a, b) {
1251  var c = a.querySelectorAll("track[kind=" + b + "]"), d = {};
1252  if(!c.length) {
1253    return d.valid = !1, d.reason = {messageKey:"noTracksProvided", args:[[b]]}, d
1254  }
1255  d.valid = !0;
1256  for(var e = [], f = 0;f < c.length;f++) {
1257    var g = {}, h = c[f].getAttribute("src"), k = c[f].getAttribute("srcLang"), m = c[f].getAttribute("label");
1258    h ? (g.valid = !0, g.src = h) : (g.valid = !1, g.reason = {messageKey:"noSrcProvided"});
1259    h = "";
1260    m && (h += m, k && (h += " "));
1261    k && (h += "(" + k + ")");
1262    "" == h && (h = "[[object Object]]");
1263    g.name = h;
1264    e.push(g)
1265  }
1266  d.values = e;
1267  return d
1268};
1269axs.properties.getAllProperties = function(a) {
1270  var b = axs.utils.asElement(a);
1271  if(!b) {
1272    return{}
1273  }
1274  var c = {};
1275  c.ariaProperties = axs.properties.getAriaProperties(b);
1276  c.colorProperties = axs.properties.getColorProperties(b);
1277  c.focusProperties = axs.properties.getFocusProperties(b);
1278  c.textProperties = axs.properties.getTextProperties(a);
1279  c.videoProperties = axs.properties.getVideoProperties(b);
1280  return c
1281};
1282axs.AuditRule = function(a) {
1283  for(var b = !0, c = [], d = 0;d < axs.AuditRule.requiredFields.length;d++) {
1284    var e = axs.AuditRule.requiredFields[d];
1285    e in a || (b = !1, c.push(e))
1286  }
1287  if(!b) {
1288    throw"Invalid spec; the following fields were not specified: " + c.join(", ") + "\n" + JSON.stringify(a);
1289  }
1290  this.name = a.name;
1291  this.severity = a.severity;
1292  this.relevantElementMatcher_ = a.relevantElementMatcher;
1293  this.test_ = a.test;
1294  this.code = a.code;
1295  this.heading = a.heading || "";
1296  this.url = a.url || "";
1297  this.requiresConsoleAPI = !!a.opt_requiresConsoleAPI
1298};
1299axs.AuditRule.requiredFields = "name severity relevantElementMatcher test code heading".split(" ");
1300axs.AuditRule.NOT_APPLICABLE = {result:axs.constants.AuditResult.NA};
1301axs.AuditRule.prototype.addElement = function(a, b) {
1302  a.push(b)
1303};
1304axs.AuditRule.collectMatchingElements = function(a, b, c) {
1305  if(a.nodeType == Node.ELEMENT_NODE) {
1306    var d = a
1307  }
1308  d && b.call(null, d) && c.push(d);
1309  for(a = a.firstChild;null != a;) {
1310    axs.AuditRule.collectMatchingElements(a, b, c), a = a.nextSibling
1311  }
1312};
1313axs.AuditRule.prototype.run = function(a) {
1314  a = a || {};
1315  var b = "ignoreSelectors" in a ? a.ignoreSelectors : [], c = "maxResults" in a ? a.maxResults : null, d = [];
1316  axs.AuditRule.collectMatchingElements("scope" in a ? a.scope : document, this.relevantElementMatcher_, d);
1317  var e = [];
1318  if(!d.length) {
1319    return{result:axs.constants.AuditResult.NA}
1320  }
1321  for(a = 0;a < d.length && !(null != c && e.length >= c);a++) {
1322    var f = d[a], g;
1323    a: {
1324      g = f;
1325      for(var h = 0;h < b.length;h++) {
1326        if(axs.browserUtils.matchSelector(g, b[h])) {
1327          g = !0;
1328          break a
1329        }
1330      }
1331      g = !1
1332    }
1333    !g && this.test_(f) && this.addElement(e, f)
1334  }
1335  b = {result:e.length ? axs.constants.AuditResult.FAIL : axs.constants.AuditResult.PASS, elements:e};
1336  a < d.length && (b.resultsTruncated = !0);
1337  return b
1338};
1339axs.AuditRule.specs = {};
1340axs.AuditRules = {};
1341axs.AuditRules.getRule = function(a) {
1342  if(!axs.AuditRules.rules) {
1343    axs.AuditRules.rules = {};
1344    for(var b in axs.AuditRule.specs) {
1345      var c = axs.AuditRule.specs[b], d = new axs.AuditRule(c);
1346      axs.AuditRules.rules[c.name] = d
1347    }
1348  }
1349  return axs.AuditRules.rules[a]
1350};
1351axs.AuditResults = function() {
1352  this.errors_ = [];
1353  this.warnings_ = []
1354};
1355goog.exportSymbol("axs.AuditResults", axs.AuditResults);
1356axs.AuditResults.prototype.addError = function(a) {
1357  "" != a && this.errors_.push(a)
1358};
1359goog.exportProperty(axs.AuditResults.prototype, "addError", axs.AuditResults.prototype.addError);
1360axs.AuditResults.prototype.addWarning = function(a) {
1361  "" != a && this.warnings_.push(a)
1362};
1363goog.exportProperty(axs.AuditResults.prototype, "addWarning", axs.AuditResults.prototype.addWarning);
1364axs.AuditResults.prototype.numErrors = function() {
1365  return this.errors_.length
1366};
1367goog.exportProperty(axs.AuditResults.prototype, "numErrors", axs.AuditResults.prototype.numErrors);
1368axs.AuditResults.prototype.numWarnings = function() {
1369  return this.warnings_.length
1370};
1371goog.exportProperty(axs.AuditResults.prototype, "numWarnings", axs.AuditResults.prototype.numWarnings);
1372axs.AuditResults.prototype.getErrors = function() {
1373  return this.errors_
1374};
1375goog.exportProperty(axs.AuditResults.prototype, "getErrors", axs.AuditResults.prototype.getErrors);
1376axs.AuditResults.prototype.getWarnings = function() {
1377  return this.warnings_
1378};
1379goog.exportProperty(axs.AuditResults.prototype, "getWarnings", axs.AuditResults.prototype.getWarnings);
1380axs.AuditResults.prototype.toString = function() {
1381  for(var a = "", b = 0;b < this.errors_.length;b++) {
1382    0 == b && (a += "\nErrors:\n");
1383    var c = this.errors_[b], a = a + (c + "\n\n")
1384  }
1385  for(b = 0;b < this.warnings_.length;b++) {
1386    0 == b && (a += "\nWarnings:\n"), c = this.warnings_[b], a += c + "\n\n"
1387  }
1388  return a
1389};
1390goog.exportProperty(axs.AuditResults.prototype, "toString", axs.AuditResults.prototype.toString);
1391axs.Audit = {};
1392axs.AuditConfiguration = function() {
1393  this.rules_ = {};
1394  this.maxResults = this.auditRulesToIgnore = this.auditRulesToRun = this.scope = null;
1395  this.withConsoleApi = !1;
1396  goog.exportProperty(this, "scope", this.scope);
1397  goog.exportProperty(this, "auditRulesToRun", this.auditRulesToRun);
1398  goog.exportProperty(this, "auditRulesToIgnore", this.auditRulesToIgnore);
1399  goog.exportProperty(this, "withConsoleApi", this.withConsoleApi)
1400};
1401goog.exportSymbol("axs.AuditConfiguration", axs.AuditConfiguration);
1402axs.AuditConfiguration.prototype = {ignoreSelectors:function(a, b) {
1403  a in this.rules_ || (this.rules_[a] = {});
1404  "ignore" in this.rules_[a] || (this.rules_[a].ignore = []);
1405  Array.prototype.push.call(this.rules_[a].ignore, b)
1406}, getIgnoreSelectors:function(a) {
1407  return a in this.rules_ && "ignore" in this.rules_[a] ? this.rules_[a].ignore : []
1408}, setSeverity:function(a, b) {
1409  a in this.rules_ || (this.rules_[a] = {});
1410  this.rules_[a].severity = b
1411}, getSeverity:function(a) {
1412  return a in this.rules_ && "severity" in this.rules_[a] ? this.rules_[a].severity : null
1413}};
1414goog.exportProperty(axs.AuditConfiguration.prototype, "ignoreSelectors", axs.AuditConfiguration.prototype.ignoreSelectors);
1415goog.exportProperty(axs.AuditConfiguration.prototype, "getIgnoreSelectors", axs.AuditConfiguration.prototype.getIgnoreSelectors);
1416axs.Audit.run = function(a) {
1417  a = a || new axs.AuditConfiguration;
1418  var b = a.withConsoleApi, c = [], d;
1419  d = a.auditRulesToRun && 0 < a.auditRulesToRun.length ? a.auditRulesToRun : Object.keys(axs.AuditRule.specs);
1420  if(a.auditRulesToIgnore) {
1421    for(var e = 0;e < a.auditRulesToIgnore.length;e++) {
1422      var f = a.auditRulesToIgnore[e];
1423      0 > d.indexOf(f) || d.splice(d.indexOf(f), 1)
1424    }
1425  }
1426  for(e = 0;e < d.length;e++) {
1427    var f = d[e], g = axs.AuditRules.getRule(f);
1428    if(g && !g.disabled && (b || !g.requiresConsoleAPI)) {
1429      var h = {}, k = a.getIgnoreSelectors(g.name);
1430      if(0 < k.length || a.scope) {
1431        h.ignoreSelectors = k
1432      }
1433      a.scope && (h.scope = a.scope);
1434      a.maxResults && (h.maxResults = a.maxResults);
1435      h = g.run.call(g, h);
1436      g = axs.utils.namedValues(g);
1437      g.severity = a.getSeverity(f) || g.severity;
1438      h.rule = g;
1439      c.push(h)
1440    }
1441  }
1442  return c
1443};
1444goog.exportSymbol("axs.Audit.run", axs.Audit.run);
1445axs.Audit.auditResults = function(a) {
1446  for(var b = new axs.AuditResults, c = 0;c < a.length;c++) {
1447    var d = a[c];
1448    d.result == axs.constants.AuditResult.FAIL && (d.rule.severity == axs.constants.Severity.SEVERE ? b.addError(axs.Audit.accessibilityErrorMessage(d)) : b.addWarning(axs.Audit.accessibilityErrorMessage(d)))
1449  }
1450  return b
1451};
1452goog.exportSymbol("axs.Audit.auditResults", axs.Audit.auditResults);
1453axs.Audit.createReport = function(a, b) {
1454  var c;
1455  c = "*** Begin accessibility audit results ***\nAn accessibility audit found " + axs.Audit.auditResults(a).toString();
1456  b && (c += "\nFor more information, please see ", c += b);
1457  return c += "\n*** End accessibility audit results ***"
1458};
1459goog.exportSymbol("axs.Audit.createReport", axs.Audit.createReport);
1460axs.Audit.accessibilityErrorMessage = function(a) {
1461  for(var b = a.rule.severity == axs.constants.Severity.SEVERE ? "Error: " : "Warning: ", b = b + (a.rule.code + " (" + a.rule.heading + ") failed on the following " + (1 == a.elements.length ? "element" : "elements")), b = 1 == a.elements.length ? b + ":" : b + (" (1 - " + Math.min(5, a.elements.length) + " of " + a.elements.length + "):"), c = Math.min(a.elements.length, 5), d = 0;d < c;d++) {
1462    var e = a.elements[d], b = b + "\n";
1463    try {
1464      b += axs.utils.getQuerySelectorText(e)
1465    }catch(f) {
1466      b += " tagName:" + e.tagName, b += " id:" + e.id
1467    }
1468  }
1469  "" != a.rule.url && (b += "\nSee " + a.rule.url + " for more information.");
1470  return b
1471};
1472goog.exportSymbol("axs.Audit.accessibilityErrorMessage", axs.Audit.accessibilityErrorMessage);
1473axs.AuditRule.specs.audioWithoutControls = {name:"audioWithoutControls", heading:"Audio elements should have controls", url:"", severity:axs.constants.Severity.WARNING, relevantElementMatcher:function(a) {
1474  return axs.browserUtils.matchSelector(a, "audio[autoplay]")
1475}, test:function(a) {
1476  return!a.querySelectorAll("[controls]").length && 3 < a.duration
1477}, code:"AX_AUDIO_01"};
1478axs.AuditRule.specs.badAriaAttributeValue = {name:"badAriaAttributeValue", heading:"ARIA state and property values must be valid", url:"", severity:axs.constants.Severity.SEVERE, relevantElementMatcher:function(a) {
1479  var b = "", c;
1480  for(c in axs.constants.ARIA_PROPERTIES) {
1481    b += "[aria-" + c + "],"
1482  }
1483  b = b.substring(0, b.length - 1);
1484  return axs.browserUtils.matchSelector(a, b)
1485}, test:function(a) {
1486  for(var b in axs.constants.ARIA_PROPERTIES) {
1487    var c = "aria-" + b;
1488    if(a.hasAttribute(c)) {
1489      var d = a.getAttribute(c);
1490      if(!axs.utils.getAriaPropertyValue(c, d, a).valid) {
1491        return!0
1492      }
1493    }
1494  }
1495  return!1
1496}, code:"AX_ARIA_04"};
1497axs.AuditRule.specs.badAriaRole = {name:"badAriaRole", heading:"Elements with ARIA roles must use a valid, non-abstract ARIA role", url:"https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#-ax_aria_01--elements-with-aria-roles-must-use-a-valid-non-abstract-aria-role", severity:axs.constants.Severity.SEVERE, relevantElementMatcher:function(a) {
1498  return axs.browserUtils.matchSelector(a, "[role]")
1499}, test:function(a) {
1500  return!axs.utils.getRoles(a).valid
1501}, code:"AX_ARIA_01"};
1502axs.AuditRule.specs.controlsWithoutLabel = {name:"controlsWithoutLabel", heading:"Controls and media elements should have labels", url:"https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#-ax_text_01--controls-and-media-elements-should-have-labels", severity:axs.constants.Severity.SEVERE, relevantElementMatcher:function(a) {
1503  if(!axs.browserUtils.matchSelector(a, 'input:not([type="hidden"]):not([disabled]), select:not([disabled]), textarea:not([disabled]), button:not([disabled]), video:not([disabled])')) {
1504    return!1
1505  }
1506  if(0 <= a.tabIndex) {
1507    return!0
1508  }
1509  for(a = a.parentElement;null != a;a = a.parentElement) {
1510    if(axs.utils.elementIsAriaWidget(a)) {
1511      return!1
1512    }
1513  }
1514  return!0
1515}, test:function(a) {
1516  return axs.utils.isElementOrAncestorHidden(a) || "input" == a.tagName.toLowerCase() && "button" == a.type && a.value.length || "button" == a.tagName.toLowerCase() && a.textContent.replace(/^\s+|\s+$/g, "").length ? !1 : axs.utils.hasLabel(a) ? !1 : !0
1517}, code:"AX_TEXT_01", ruleName:"Controls and media elements should have labels"};
1518axs.AuditRule.specs.focusableElementNotVisibleAndNotAriaHidden = {name:"focusableElementNotVisibleAndNotAriaHidden", heading:"These elements are focusable but either invisible or obscured by another element", url:"https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#-ax_focus_01--these-elements-are-focusable-but-either-invisible-or-obscured-by-another-element", severity:axs.constants.Severity.WARNING, relevantElementMatcher:function(a) {
1519  if(!axs.browserUtils.matchSelector(a, axs.utils.FOCUSABLE_ELEMENTS_SELECTOR)) {
1520    return!1
1521  }
1522  if(0 <= a.tabIndex) {
1523    return!0
1524  }
1525  for(a = a.parentElement;null != a;a = a.parentElement) {
1526    if(axs.utils.elementIsAriaWidget(a)) {
1527      return!1
1528    }
1529  }
1530  return!0
1531}, test:function(a) {
1532  return axs.utils.isElementOrAncestorHidden(a) ? !1 : !axs.utils.elementIsVisible(a)
1533}, code:"AX_FOCUS_01"};
1534axs.AuditRule.specs.imagesWithoutAltText = {name:"imagesWithoutAltText", heading:"Images should have an alt attribute", url:"https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#-ax_text_02--images-should-have-an-alt-attribute-unless-they-have-an-aria-role-of-presentation", severity:axs.constants.Severity.WARNING, relevantElementMatcher:function(a) {
1535  return axs.browserUtils.matchSelector(a, "img") && !axs.utils.isElementOrAncestorHidden(a)
1536}, test:function(a) {
1537  return!a.hasAttribute("alt") && "presentation" != a.getAttribute("role")
1538}, code:"AX_TEXT_02"};
1539axs.AuditRule.specs.linkWithUnclearPurpose = {name:"linkWithUnclearPurpose", heading:"The purpose of each link should be clear from the link text", url:"", severity:axs.constants.Severity.WARNING, relevantElementMatcher:function(a) {
1540  return axs.browserUtils.matchSelector(a, "a")
1541}, test:function(a) {
1542  return/^\s*click\s*here\s*[^a-z]?$/i.test(a.textContent)
1543}, code:"AX_TITLE_01"};
1544axs.AuditRule.specs.lowContrastElements = {name:"lowContrastElements", heading:"Text elements should have a reasonable contrast ratio", url:"https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#-ax_color_01--text-elements-should-have-a-reasonable-contrast-ratio", severity:axs.constants.Severity.WARNING, relevantElementMatcher:function(a) {
1545  return axs.properties.hasDirectTextDescendant(a)
1546}, test:function(a) {
1547  var b = window.getComputedStyle(a, null);
1548  return(a = axs.utils.getContrastRatioForElementWithComputedStyle(b, a)) && axs.utils.isLowContrast(a, b)
1549}, code:"AX_COLOR_01"};
1550axs.AuditRule.specs.mainRoleOnInappropriateElement = {name:"mainRoleOnInappropriateElement", heading:"role=main should only appear on significant elements", url:"", severity:axs.constants.Severity.WARNING, relevantElementMatcher:function(a) {
1551  return axs.browserUtils.matchSelector(a, "[role~=main]")
1552}, test:function(a) {
1553  if(axs.utils.isInlineElement(a)) {
1554    return!0
1555  }
1556  a = axs.properties.getTextFromDescendantContent(a);
1557  return!a || 50 > a.length ? !0 : !1
1558}, code:"AX_ARIA_04"};
1559axs.AuditRule.specs.elementsWithMeaningfulBackgroundImage = {name:"elementsWithMeaningfulBackgroundImage", severity:axs.constants.Severity.WARNING, relevantElementMatcher:function(a) {
1560  return!axs.utils.isElementOrAncestorHidden(a)
1561}, heading:"Meaningful images should not be used in element backgrounds", url:"https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#-ax_image_01--meaningful-images-should-not-be-used-in-element-backgrounds", test:function(a) {
1562  if(a.textContent && 0 < a.textContent.length) {
1563    return!1
1564  }
1565  a = window.getComputedStyle(a, null);
1566  var b = a.backgroundImage;
1567  if(!b || "undefined" === b || "none" === b || 0 != b.indexOf("url")) {
1568    return!1
1569  }
1570  b = parseInt(a.width, 10);
1571  a = parseInt(a.height, 10);
1572  return 150 > b && 150 > a
1573}, code:"AX_IMAGE_01"};
1574axs.AuditRule.specs.nonExistentAriaLabelledbyElement = {name:"nonExistentAriaLabelledbyElement", heading:"aria-labelledby attributes should refer to an element which exists in the DOM", url:"https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#-ax_aria_02--aria-labelledby-attributes-should-refer-to-an-element-which-exists-in-the-dom", severity:axs.constants.Severity.WARNING, relevantElementMatcher:function(a) {
1575  return axs.browserUtils.matchSelector(a, "[aria-labelledby]")
1576}, test:function(a) {
1577  a = a.getAttribute("aria-labelledby").split(/\s+/);
1578  for(var b = 0;b < a.length;b++) {
1579    if(!document.getElementById(a[b])) {
1580      return!0
1581    }
1582  }
1583  return!1
1584}, code:"AX_ARIA_02"};
1585axs.AuditRule.specs.pageWithoutTitle = {name:"pageWithoutTitle", heading:"The web page should have a title that describes topic or purpose", url:"", severity:axs.constants.Severity.WARNING, relevantElementMatcher:function(a) {
1586  return"html" == a.tagName.toLowerCase()
1587}, test:function(a) {
1588  a = a.querySelector("head");
1589  return a ? (a = a.querySelector("title")) ? !a.textContent : !0 : !0
1590}, code:"AX_TITLE_01"};
1591axs.AuditRule.specs.requiredAriaAttributeMissing = {name:"requiredAriaAttributeMissing", heading:"Elements with ARIA roles must have all required attributes for that role", url:"https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#-ax_aria_03--elements-with-aria-roles-must-have-all-required-attributes-for-that-role", severity:axs.constants.Severity.SEVERE, relevantElementMatcher:function(a) {
1592  return axs.browserUtils.matchSelector(a, "[role]")
1593}, test:function(a) {
1594  var b = axs.utils.getRoles(a);
1595  if(!b.valid) {
1596    return!1
1597  }
1598  for(var c = 0;c < b.roles.length;c++) {
1599    var d = b.roles[c].details.requiredPropertiesSet, e;
1600    for(e in d) {
1601      if(d = e.replace(/^aria-/, ""), !("defaultValue" in axs.constants.ARIA_PROPERTIES[d] || a.hasAttribute(e))) {
1602        return!0
1603      }
1604    }
1605  }
1606}, code:"AX_ARIA_03"};
1607axs.AuditRule.specs.unfocusableElementsWithOnClick = {name:"unfocusableElementsWithOnClick", heading:"Elements with onclick handlers must be focusable", url:"https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#-ax_focus_02--elements-with-onclick-handlers-must-be-focusable", severity:axs.constants.Severity.WARNING, opt_requiresConsoleAPI:!0, relevantElementMatcher:function(a) {
1608  return a instanceof a.ownerDocument.defaultView.HTMLBodyElement || axs.utils.isElementOrAncestorHidden(a) ? !1 : "click" in getEventListeners(a) ? !0 : !1
1609}, test:function(a) {
1610  return!a.hasAttribute("tabindex") && !axs.utils.isElementImplicitlyFocusable(a)
1611}, code:"AX_FOCUS_02"};
1612axs.AuditRule.specs.videoWithoutCaptions = {name:"videoWithoutCaptions", heading:"Video elements should use <track> elements to provide captions", url:"https://github.com/GoogleChrome/accessibility-developer-tools/wiki/Audit-Rules#-ax_video_01--video-elements-should-use-track-elements-to-provide-captions", severity:axs.constants.Severity.WARNING, relevantElementMatcher:function(a) {
1613  return axs.browserUtils.matchSelector(a, "video")
1614}, test:function(a) {
1615  return!a.querySelectorAll("track[kind=captions]").length
1616}, code:"AX_VIDEO_01"};
1617
1618
1619