--- /dev/null
+/**
+ * @license AngularJS v1.5.0
+ * (c) 2010-2016 Google, Inc. http://angularjs.org
+ * License: MIT
+ */
+(function(window, angular, undefined) {'use strict';
+
+/**
+ * @ngdoc module
+ * @name ngAria
+ * @description
+ *
+ * The `ngAria` module provides support for common
+ * [<abbr title="Accessible Rich Internet Applications">ARIA</abbr>](http://www.w3.org/TR/wai-aria/)
+ * attributes that convey state or semantic information about the application for users
+ * of assistive technologies, such as screen readers.
+ *
+ * <div doc-module-components="ngAria"></div>
+ *
+ * ## Usage
+ *
+ * For ngAria to do its magic, simply include the module `ngAria` as a dependency. The following
+ * directives are supported:
+ * `ngModel`, `ngChecked`, `ngRequired`, `ngValue`, `ngDisabled`, `ngShow`, `ngHide`, `ngClick`,
+ * `ngDblClick`, and `ngMessages`.
+ *
+ * Below is a more detailed breakdown of the attributes handled by ngAria:
+ *
+ * | Directive | Supported Attributes |
+ * |---------------------------------------------|----------------------------------------------------------------------------------------|
+ * | {@link ng.directive:ngModel ngModel} | aria-checked, aria-valuemin, aria-valuemax, aria-valuenow, aria-invalid, aria-required, input roles |
+ * | {@link ng.directive:ngDisabled ngDisabled} | aria-disabled |
+ * | {@link ng.directive:ngRequired ngRequired} | aria-required |
+ * | {@link ng.directive:ngChecked ngChecked} | aria-checked |
+ * | {@link ng.directive:ngValue ngValue} | aria-checked |
+ * | {@link ng.directive:ngShow ngShow} | aria-hidden |
+ * | {@link ng.directive:ngHide ngHide} | aria-hidden |
+ * | {@link ng.directive:ngDblclick ngDblclick} | tabindex |
+ * | {@link module:ngMessages ngMessages} | aria-live |
+ * | {@link ng.directive:ngClick ngClick} | tabindex, keypress event, button role |
+ *
+ * Find out more information about each directive by reading the
+ * {@link guide/accessibility ngAria Developer Guide}.
+ *
+ * ##Example
+ * Using ngDisabled with ngAria:
+ * ```html
+ * <md-checkbox ng-disabled="disabled">
+ * ```
+ * Becomes:
+ * ```html
+ * <md-checkbox ng-disabled="disabled" aria-disabled="true">
+ * ```
+ *
+ * ##Disabling Attributes
+ * It's possible to disable individual attributes added by ngAria with the
+ * {@link ngAria.$ariaProvider#config config} method. For more details, see the
+ * {@link guide/accessibility Developer Guide}.
+ */
+ /* global -ngAriaModule */
+var ngAriaModule = angular.module('ngAria', ['ng']).
+ provider('$aria', $AriaProvider);
+
+/**
+* Internal Utilities
+*/
+var nodeBlackList = ['BUTTON', 'A', 'INPUT', 'TEXTAREA', 'SELECT', 'DETAILS', 'SUMMARY'];
+
+var isNodeOneOf = function(elem, nodeTypeArray) {
+ if (nodeTypeArray.indexOf(elem[0].nodeName) !== -1) {
+ return true;
+ }
+};
+/**
+ * @ngdoc provider
+ * @name $ariaProvider
+ *
+ * @description
+ *
+ * Used for configuring the ARIA attributes injected and managed by ngAria.
+ *
+ * ```js
+ * angular.module('myApp', ['ngAria'], function config($ariaProvider) {
+ * $ariaProvider.config({
+ * ariaValue: true,
+ * tabindex: false
+ * });
+ * });
+ *```
+ *
+ * ## Dependencies
+ * Requires the {@link ngAria} module to be installed.
+ *
+ */
+function $AriaProvider() {
+ var config = {
+ ariaHidden: true,
+ ariaChecked: true,
+ ariaDisabled: true,
+ ariaRequired: true,
+ ariaInvalid: true,
+ ariaValue: true,
+ tabindex: true,
+ bindKeypress: true,
+ bindRoleForClick: true
+ };
+
+ /**
+ * @ngdoc method
+ * @name $ariaProvider#config
+ *
+ * @param {object} config object to enable/disable specific ARIA attributes
+ *
+ * - **ariaHidden** – `{boolean}` – Enables/disables aria-hidden tags
+ * - **ariaChecked** – `{boolean}` – Enables/disables aria-checked tags
+ * - **ariaDisabled** – `{boolean}` – Enables/disables aria-disabled tags
+ * - **ariaRequired** – `{boolean}` – Enables/disables aria-required tags
+ * - **ariaInvalid** – `{boolean}` – Enables/disables aria-invalid tags
+ * - **ariaValue** – `{boolean}` – Enables/disables aria-valuemin, aria-valuemax and aria-valuenow tags
+ * - **tabindex** – `{boolean}` – Enables/disables tabindex tags
+ * - **bindKeypress** – `{boolean}` – Enables/disables keypress event binding on `div` and
+ * `li` elements with ng-click
+ * - **bindRoleForClick** – `{boolean}` – Adds role=button to non-interactive elements like `div`
+ * using ng-click, making them more accessible to users of assistive technologies
+ *
+ * @description
+ * Enables/disables various ARIA attributes
+ */
+ this.config = function(newConfig) {
+ config = angular.extend(config, newConfig);
+ };
+
+ function watchExpr(attrName, ariaAttr, nodeBlackList, negate) {
+ return function(scope, elem, attr) {
+ var ariaCamelName = attr.$normalize(ariaAttr);
+ if (config[ariaCamelName] && !isNodeOneOf(elem, nodeBlackList) && !attr[ariaCamelName]) {
+ scope.$watch(attr[attrName], function(boolVal) {
+ // ensure boolean value
+ boolVal = negate ? !boolVal : !!boolVal;
+ elem.attr(ariaAttr, boolVal);
+ });
+ }
+ };
+ }
+ /**
+ * @ngdoc service
+ * @name $aria
+ *
+ * @description
+ * @priority 200
+ *
+ * The $aria service contains helper methods for applying common
+ * [ARIA](http://www.w3.org/TR/wai-aria/) attributes to HTML directives.
+ *
+ * ngAria injects common accessibility attributes that tell assistive technologies when HTML
+ * elements are enabled, selected, hidden, and more. To see how this is performed with ngAria,
+ * let's review a code snippet from ngAria itself:
+ *
+ *```js
+ * ngAriaModule.directive('ngDisabled', ['$aria', function($aria) {
+ * return $aria.$$watchExpr('ngDisabled', 'aria-disabled', nodeBlackList, false);
+ * }])
+ *```
+ * Shown above, the ngAria module creates a directive with the same signature as the
+ * traditional `ng-disabled` directive. But this ngAria version is dedicated to
+ * solely managing accessibility attributes on custom elements. The internal `$aria` service is
+ * used to watch the boolean attribute `ngDisabled`. If it has not been explicitly set by the
+ * developer, `aria-disabled` is injected as an attribute with its value synchronized to the
+ * value in `ngDisabled`.
+ *
+ * Because ngAria hooks into the `ng-disabled` directive, developers do not have to do
+ * anything to enable this feature. The `aria-disabled` attribute is automatically managed
+ * simply as a silent side-effect of using `ng-disabled` with the ngAria module.
+ *
+ * The full list of directives that interface with ngAria:
+ * * **ngModel**
+ * * **ngChecked**
+ * * **ngRequired**
+ * * **ngDisabled**
+ * * **ngValue**
+ * * **ngShow**
+ * * **ngHide**
+ * * **ngClick**
+ * * **ngDblclick**
+ * * **ngMessages**
+ *
+ * Read the {@link guide/accessibility ngAria Developer Guide} for a thorough explanation of each
+ * directive.
+ *
+ *
+ * ## Dependencies
+ * Requires the {@link ngAria} module to be installed.
+ */
+ this.$get = function() {
+ return {
+ config: function(key) {
+ return config[key];
+ },
+ $$watchExpr: watchExpr
+ };
+ };
+}
+
+
+ngAriaModule.directive('ngShow', ['$aria', function($aria) {
+ return $aria.$$watchExpr('ngShow', 'aria-hidden', [], true);
+}])
+.directive('ngHide', ['$aria', function($aria) {
+ return $aria.$$watchExpr('ngHide', 'aria-hidden', [], false);
+}])
+.directive('ngValue', ['$aria', function($aria) {
+ return $aria.$$watchExpr('ngValue', 'aria-checked', nodeBlackList, false);
+}])
+.directive('ngChecked', ['$aria', function($aria) {
+ return $aria.$$watchExpr('ngChecked', 'aria-checked', nodeBlackList, false);
+}])
+.directive('ngRequired', ['$aria', function($aria) {
+ return $aria.$$watchExpr('ngRequired', 'aria-required', nodeBlackList, false);
+}])
+.directive('ngModel', ['$aria', function($aria) {
+
+ function shouldAttachAttr(attr, normalizedAttr, elem, allowBlacklistEls) {
+ return $aria.config(normalizedAttr) && !elem.attr(attr) && (allowBlacklistEls || !isNodeOneOf(elem, nodeBlackList));
+ }
+
+ function shouldAttachRole(role, elem) {
+ // if element does not have role attribute
+ // AND element type is equal to role (if custom element has a type equaling shape) <-- remove?
+ // AND element is not INPUT
+ return !elem.attr('role') && (elem.attr('type') === role) && (elem[0].nodeName !== 'INPUT');
+ }
+
+ function getShape(attr, elem) {
+ var type = attr.type,
+ role = attr.role;
+
+ return ((type || role) === 'checkbox' || role === 'menuitemcheckbox') ? 'checkbox' :
+ ((type || role) === 'radio' || role === 'menuitemradio') ? 'radio' :
+ (type === 'range' || role === 'progressbar' || role === 'slider') ? 'range' : '';
+ }
+
+ return {
+ restrict: 'A',
+ require: 'ngModel',
+ priority: 200, //Make sure watches are fired after any other directives that affect the ngModel value
+ compile: function(elem, attr) {
+ var shape = getShape(attr, elem);
+
+ return {
+ pre: function(scope, elem, attr, ngModel) {
+ if (shape === 'checkbox') {
+ //Use the input[checkbox] $isEmpty implementation for elements with checkbox roles
+ ngModel.$isEmpty = function(value) {
+ return value === false;
+ };
+ }
+ },
+ post: function(scope, elem, attr, ngModel) {
+ var needsTabIndex = shouldAttachAttr('tabindex', 'tabindex', elem, false);
+
+ function ngAriaWatchModelValue() {
+ return ngModel.$modelValue;
+ }
+
+ function getRadioReaction(newVal) {
+ var boolVal = (attr.value == ngModel.$viewValue);
+ elem.attr('aria-checked', boolVal);
+ }
+
+ function getCheckboxReaction() {
+ elem.attr('aria-checked', !ngModel.$isEmpty(ngModel.$viewValue));
+ }
+
+ switch (shape) {
+ case 'radio':
+ case 'checkbox':
+ if (shouldAttachRole(shape, elem)) {
+ elem.attr('role', shape);
+ }
+ if (shouldAttachAttr('aria-checked', 'ariaChecked', elem, false)) {
+ scope.$watch(ngAriaWatchModelValue, shape === 'radio' ?
+ getRadioReaction : getCheckboxReaction);
+ }
+ if (needsTabIndex) {
+ elem.attr('tabindex', 0);
+ }
+ break;
+ case 'range':
+ if (shouldAttachRole(shape, elem)) {
+ elem.attr('role', 'slider');
+ }
+ if ($aria.config('ariaValue')) {
+ var needsAriaValuemin = !elem.attr('aria-valuemin') &&
+ (attr.hasOwnProperty('min') || attr.hasOwnProperty('ngMin'));
+ var needsAriaValuemax = !elem.attr('aria-valuemax') &&
+ (attr.hasOwnProperty('max') || attr.hasOwnProperty('ngMax'));
+ var needsAriaValuenow = !elem.attr('aria-valuenow');
+
+ if (needsAriaValuemin) {
+ attr.$observe('min', function ngAriaValueMinReaction(newVal) {
+ elem.attr('aria-valuemin', newVal);
+ });
+ }
+ if (needsAriaValuemax) {
+ attr.$observe('max', function ngAriaValueMinReaction(newVal) {
+ elem.attr('aria-valuemax', newVal);
+ });
+ }
+ if (needsAriaValuenow) {
+ scope.$watch(ngAriaWatchModelValue, function ngAriaValueNowReaction(newVal) {
+ elem.attr('aria-valuenow', newVal);
+ });
+ }
+ }
+ if (needsTabIndex) {
+ elem.attr('tabindex', 0);
+ }
+ break;
+ }
+
+ if (!attr.hasOwnProperty('ngRequired') && ngModel.$validators.required
+ && shouldAttachAttr('aria-required', 'ariaRequired', elem, false)) {
+ // ngModel.$error.required is undefined on custom controls
+ attr.$observe('required', function() {
+ elem.attr('aria-required', !!attr['required']);
+ });
+ }
+
+ if (shouldAttachAttr('aria-invalid', 'ariaInvalid', elem, true)) {
+ scope.$watch(function ngAriaInvalidWatch() {
+ return ngModel.$invalid;
+ }, function ngAriaInvalidReaction(newVal) {
+ elem.attr('aria-invalid', !!newVal);
+ });
+ }
+ }
+ };
+ }
+ };
+}])
+.directive('ngDisabled', ['$aria', function($aria) {
+ return $aria.$$watchExpr('ngDisabled', 'aria-disabled', nodeBlackList, false);
+}])
+.directive('ngMessages', function() {
+ return {
+ restrict: 'A',
+ require: '?ngMessages',
+ link: function(scope, elem, attr, ngMessages) {
+ if (!elem.attr('aria-live')) {
+ elem.attr('aria-live', 'assertive');
+ }
+ }
+ };
+})
+.directive('ngClick',['$aria', '$parse', function($aria, $parse) {
+ return {
+ restrict: 'A',
+ compile: function(elem, attr) {
+ var fn = $parse(attr.ngClick, /* interceptorFn */ null, /* expensiveChecks */ true);
+ return function(scope, elem, attr) {
+
+ if (!isNodeOneOf(elem, nodeBlackList)) {
+
+ if ($aria.config('bindRoleForClick') && !elem.attr('role')) {
+ elem.attr('role', 'button');
+ }
+
+ if ($aria.config('tabindex') && !elem.attr('tabindex')) {
+ elem.attr('tabindex', 0);
+ }
+
+ if ($aria.config('bindKeypress') && !attr.ngKeypress) {
+ elem.on('keypress', function(event) {
+ var keyCode = event.which || event.keyCode;
+ if (keyCode === 32 || keyCode === 13) {
+ scope.$apply(callback);
+ }
+
+ function callback() {
+ fn(scope, { $event: event });
+ }
+ });
+ }
+ }
+ };
+ }
+ };
+}])
+.directive('ngDblclick', ['$aria', function($aria) {
+ return function(scope, elem, attr) {
+ if ($aria.config('tabindex') && !elem.attr('tabindex') && !isNodeOneOf(elem, nodeBlackList)) {
+ elem.attr('tabindex', 0);
+ }
+ };
+}]);
+
+
+})(window, window.angular);
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