resources/src/mediawiki.widgets/mw.widgets.DateInputWidget.js

   1 /*!
   2  * MediaWiki Widgets – DateInputWidget class.
   3  *
   4  * @copyright 2011-2015 MediaWiki Widgets Team and others; see AUTHORS.txt
   5  * @license The MIT License (MIT); see LICENSE.txt
   6  */
   7 /*global moment */
   8 ( function ( $, mw ) {
   9
  10         /**
  11          * Creates an mw.widgets.DateInputWidget object.
  12          *
  13          *     @example
  14          *     // Date input widget showcase
  15          *     var fieldset = new OO.ui.FieldsetLayout( {
  16          *       items: [
  17          *         new OO.ui.FieldLayout(
  18          *           new mw.widgets.DateInputWidget(),
  19          *           {
  20          *             align: 'top',
  21          *             label: 'Select date'
  22          *           }
  23          *         ),
  24          *         new OO.ui.FieldLayout(
  25          *           new mw.widgets.DateInputWidget( { precision: 'month' } ),
  26          *           {
  27          *             align: 'top',
  28          *             label: 'Select month'
  29          *           }
  30          *         ),
  31          *         new OO.ui.FieldLayout(
  32          *           new mw.widgets.DateInputWidget( {
  33          *             inputFormat: 'DD.MM.YYYY',
  34          *             displayFormat: 'Do [of] MMMM [anno Domini] YYYY'
  35          *           } ),
  36          *           {
  37          *             align: 'top',
  38          *             label: 'Select date (custom formats)'
  39          *           }
  40          *         )
  41          *       ]
  42          *     } );
  43          *     $( 'body' ).append( fieldset.$element );
  44          *
  45          * The value is stored in 'YYYY-MM-DD' or 'YYYY-MM' format:
  46          *
  47          *     @example
  48          *     // Accessing values in a date input widget
  49          *     var dateInput = new mw.widgets.DateInputWidget();
  50          *     var $label = $( '<p>' );
  51          *     $( 'body' ).append( $label, dateInput.$element );
  52          *     dateInput.on( 'change', function () {
  53          *       // The value will always be a valid date or empty string, malformed input is ignored
  54          *       var date = dateInput.getValue();
  55          *       $label.text( 'Selected date: ' + ( date || '(none)' ) );
  56          *     } );
  57          *
  58          * @class
  59          * @extends OO.ui.InputWidget
  60          * @mixins OO.ui.mixin.IndicatorElement
  61          *
  62          * @constructor
  63          * @param {Object} [config] Configuration options
  64          * @cfg {string} [precision='day'] Date precision to use, 'day' or 'month'
  65          * @cfg {string} [value] Day or month date (depending on `precision`), in the format 'YYYY-MM-DD'
  66          *     or 'YYYY-MM'. If not given or empty string, no date is selected.
  67          * @cfg {string} [inputFormat] Date format string to use for the textual input field. Displayed
  68          *     while the widget is active, and the user can type in a date in this format. Should be short
  69          *     and easy to type. When not given, defaults to 'YYYY-MM-DD' or 'YYYY-MM', depending on
  70          *     `precision`.
  71          * @cfg {string} [displayFormat] Date format string to use for the clickable label. Displayed
  72          *     while the widget is inactive. Should be as unambiguous as possible (for example, prefer to
  73          *     spell out the month, rather than rely on the order), even if that makes it longer. When not
  74          *     given, the default is language-specific.
  75          * @cfg {string} [placeholderLabel=No date selected] Placeholder text shown when the widget is not
  76          *     selected. Default text taken from message `mw-widgets-dateinput-no-date`.
  77          * @cfg {string} [placeholderDateFormat] User-visible date format string displayed in the textual input
  78          *     field when it's empty. Should be the same as `inputFormat`, but translated to the user's
  79          *     language. When not given, defaults to a translated version of 'YYYY-MM-DD' or 'YYYY-MM',
  80          *     depending on `precision`.
  81          * @cfg {boolean} [required=false] Mark the field as required. Implies `indicator: 'required'`.
  82          * @cfg {string} [mustBeAfter] Validates the date to be after this. In the 'YYYY-MM-DD' format.
  83          * @cfg {string} [mustBeBefore] Validates the date to be before this. In the 'YYYY-MM-DD' format.
  84          * @cfg {jQuery} [$overlay] Render the calendar into a separate layer. This configuration is
  85          *     useful in cases where the expanded calendar is larger than its container. The specified
  86          *     overlay layer is usually on top of the container and has a larger area. By default, the
  87          *     calendar uses relative positioning.
  88          */
  89         mw.widgets.DateInputWidget = function MWWDateInputWidget( config ) {
  90                 // Config initialization
  91                 config = $.extend( {
  92                         precision: 'day',
  93                         required: false,
  94                         placeholderLabel: mw.msg( 'mw-widgets-dateinput-no-date' )
  95                 }, config );
  96                 if ( config.required ) {
  97                         if ( config.indicator === undefined ) {
  98                                 config.indicator = 'required';
  99                         }
 100                 }
 101
 102                 var placeholderDateFormat, mustBeAfter, mustBeBefore;
 103                 if ( config.placeholderDateFormat ) {
 104                         placeholderDateFormat = config.placeholderDateFormat;
 105                 } else if ( config.inputFormat ) {
 106                         // We have no way to display a translated placeholder for custom formats
 107                         placeholderDateFormat = '';
 108                 } else {
 109                         // Messages: mw-widgets-dateinput-placeholder-day, mw-widgets-dateinput-placeholder-month
 110                         placeholderDateFormat = mw.msg( 'mw-widgets-dateinput-placeholder-' + config.precision );
 111                 }
 112
 113                 // Properties (must be set before parent constructor, which calls #setValue)
 114                 this.$handle = $( '<div>' );
 115                 this.label = new OO.ui.LabelWidget();
 116                 this.textInput = new OO.ui.TextInputWidget( {
 117                         required: config.required,
 118                         placeholder: placeholderDateFormat,
 119                         validate: this.validateDate.bind( this )
 120                 } );
 121                 this.calendar = new mw.widgets.CalendarWidget( {
 122                         lazyInitOnToggle: true,
 123                         // Can't pass `$floatableContainer: this.$element` here, the latter is not set yet.
 124                         // Instead we call setFloatableContainer() below.
 125                         precision: config.precision
 126                 } );
 127                 this.inCalendar = 0;
 128                 this.inTextInput = 0;
 129                 this.inputFormat = config.inputFormat;
 130                 this.displayFormat = config.displayFormat;
 131                 this.required = config.required;
 132                 this.placeholderLabel = config.placeholderLabel;
 133
 134                 // Validate and set min and max dates as properties
 135                 if ( config.mustBeAfter !== undefined ) {
 136                         mustBeAfter = moment( config.mustBeAfter, 'YYYY-MM-DD' );
 137                         if ( mustBeAfter.isValid() ) {
 138                                 this.mustBeAfter = mustBeAfter;
 139                         }
 140                 }
 141                 if ( config.mustBeBefore !== undefined ) {
 142                         mustBeBefore = moment( config.mustBeBefore, 'YYYY-MM-DD' );
 143                         if ( mustBeBefore.isValid() ) {
 144                                 this.mustBeBefore = mustBeBefore;
 145                         }
 146                 }
 147
 148                 // Parent constructor
 149                 mw.widgets.DateInputWidget.parent.call( this, config );
 150
 151                 // Mixin constructors
 152                 OO.ui.mixin.IndicatorElement.call( this, config );
 153
 154                 // Events
 155                 this.calendar.connect( this, {
 156                         change: 'onCalendarChange'
 157                 } );
 158                 this.textInput.connect( this, {
 159                         enter: 'onEnter',
 160                         change: 'onTextInputChange'
 161                 } );
 162                 this.$element.on( {
 163                         focusout: this.onBlur.bind( this )
 164                 } );
 165                 this.calendar.$element.on( {
 166                         click: this.onCalendarClick.bind( this ),
 167                         keypress: this.onCalendarKeyPress.bind( this )
 168                 } );
 169                 this.$handle.on( {
 170                         click: this.onClick.bind( this ),
 171                         keypress: this.onKeyPress.bind( this )
 172                 } );
 173
 174                 // Initialization
 175                 // Move 'tabindex' from this.$input (which is invisible) to the visible handle
 176                 this.setTabIndexedElement( this.$handle );
 177                 this.$handle
 178                         .append( this.label.$element, this.$indicator )
 179                         .addClass( 'mw-widget-dateInputWidget-handle' );
 180                 this.calendar.$element
 181                         .addClass( 'mw-widget-dateInputWidget-calendar' );
 182                 this.$element
 183                         .addClass( 'mw-widget-dateInputWidget' )
 184                         .append( this.$handle, this.textInput.$element, this.calendar.$element );
 185
 186                 // config.overlay is the selector to be used for config.$overlay, specified from PHP
 187                 if ( config.overlay ) {
 188                         config.$overlay = $( config.overlay );
 189                 }
 190
 191                 if ( config.$overlay ) {
 192                         this.calendar.setFloatableContainer( this.$element );
 193                         config.$overlay.append( this.calendar.$element );
 194
 195                         // The text input and calendar are not in DOM order, so fix up focus transitions.
 196                         this.textInput.$input.on( 'keydown', function ( e ) {
 197                                 if ( e.which === OO.ui.Keys.TAB ) {
 198                                         if ( e.shiftKey ) {
 199                                                 // Tabbing backward from text input: normal browser behavior
 200                                                 $.noop();
 201                                         } else {
 202                                                 // Tabbing forward from text input: just focus the calendar
 203                                                 this.calendar.$element.focus();
 204                                                 return false;
 205                                         }
 206                                 }
 207                         }.bind( this ) );
 208                         this.calendar.$element.on( 'keydown', function ( e ) {
 209                                 if ( e.which === OO.ui.Keys.TAB ) {
 210                                         if ( e.shiftKey ) {
 211                                                 // Tabbing backward from calendar: just focus the text input
 212                                                 this.textInput.$input.focus();
 213                                                 return false;
 214                                         } else {
 215                                                 // Tabbing forward from calendar: focus the text input, then allow normal browser
 216                                                 // behavior to move focus to next focusable after it
 217                                                 this.textInput.$input.focus();
 218                                         }
 219                                 }
 220                         }.bind( this ) );
 221                 }
 222
 223                 // Set handle label and hide stuff
 224                 this.updateUI();
 225                 this.textInput.toggle( false );
 226                 this.calendar.toggle( false );
 227
 228                 // Hide unused <input> from PHP after infusion is done
 229                 // See InputWidget#reusePreInfuseDOM about config.$input
 230                 if ( config.$input ) {
 231                         config.$input.addClass( 'oo-ui-element-hidden' );
 232                 }
 233         };
 234
 235         /* Inheritance */
 236
 237         OO.inheritClass( mw.widgets.DateInputWidget, OO.ui.InputWidget );
 238         OO.mixinClass( mw.widgets.DateInputWidget, OO.ui.mixin.IndicatorElement );
 239
 240         /* Methods */
 241
 242         /**
 243          * @inheritdoc
 244          * @protected
 245          */
 246         mw.widgets.DateInputWidget.prototype.getInputElement = function () {
 247                 return $( '<input>' ).attr( 'type', 'hidden' );
 248         };
 249
 250         /**
 251          * Respond to calendar date change events.
 252          *
 253          * @private
 254          */
 255         mw.widgets.DateInputWidget.prototype.onCalendarChange = function () {
 256                 this.inCalendar++;
 257                 if ( !this.inTextInput ) {
 258                         // If this is caused by user typing in the input field, do not set anything.
 259                         // The value may be invalid (see #onTextInputChange), but displayable on the calendar.
 260                         this.setValue( this.calendar.getDate() );
 261                 }
 262                 this.inCalendar--;
 263         };
 264
 265         /**
 266          * Respond to text input value change events.
 267          *
 268          * @private
 269          */
 270         mw.widgets.DateInputWidget.prototype.onTextInputChange = function () {
 271                 var mom,
 272                         widget = this,
 273                         value = this.textInput.getValue(),
 274                         valid = this.isValidDate( value );
 275                 this.inTextInput++;
 276
 277                 if ( value === '' ) {
 278                         // No date selected
 279                         widget.setValue( '' );
 280                 } else if ( valid ) {
 281                         // Well-formed date value, parse and set it
 282                         mom = moment( value, widget.getInputFormat() );
 283                         // Use English locale to avoid number formatting
 284                         widget.setValue( mom.locale( 'en' ).format( widget.getInternalFormat() ) );
 285                 } else {
 286                         // Not well-formed, but possibly partial? Try updating the calendar, but do not set the
 287                         // internal value. Generally this only makes sense when 'inputFormat' is little-endian (e.g.
 288                         // 'YYYY-MM-DD'), but that's hard to check for, and might be difficult to handle the parsing
 289                         // right for weird formats. So limit this trick to only when we're using the default
 290                         // 'inputFormat', which is the same as the internal format, 'YYYY-MM-DD'.
 291                         if ( widget.getInputFormat() === widget.getInternalFormat() ) {
 292                                 widget.calendar.setDate( widget.textInput.getValue() );
 293                         }
 294                 }
 295                 widget.inTextInput--;
 296
 297         };
 298
 299         /**
 300          * @inheritdoc
 301          */
 302         mw.widgets.DateInputWidget.prototype.setValue = function ( value ) {
 303                 var oldValue = this.value;
 304
 305                 if ( !moment( value, this.getInternalFormat() ).isValid() ) {
 306                         value = '';
 307                 }
 308
 309                 mw.widgets.DateInputWidget.parent.prototype.setValue.call( this, value );
 310
 311                 if ( this.value !== oldValue ) {
 312                         this.updateUI();
 313                         this.setValidityFlag();
 314                 }
 315
 316                 return this;
 317         };
 318
 319         /**
 320          * Handle text input and calendar blur events.
 321          *
 322          * @private
 323          */
 324         mw.widgets.DateInputWidget.prototype.onBlur = function () {
 325                 var widget = this;
 326                 setTimeout( function () {
 327                         var $focussed = $( ':focus' );
 328                         // Deactivate unless the focus moved to something else inside this widget
 329                         if (
 330                                 !OO.ui.contains( widget.$element[ 0 ], $focussed[ 0 ], true ) &&
 331                                 // Calendar might be in an $overlay
 332                                 !OO.ui.contains( widget.calendar.$element[ 0 ], $focussed[ 0 ], true )
 333                         ) {
 334                                 widget.deactivate();
 335                         }
 336                 }, 0 );
 337         };
 338
 339         /**
 340          * @inheritdoc
 341          */
 342         mw.widgets.DateInputWidget.prototype.focus = function () {
 343                 this.activate();
 344                 return this;
 345         };
 346
 347         /**
 348          * @inheritdoc
 349          */
 350         mw.widgets.DateInputWidget.prototype.blur = function () {
 351                 this.deactivate();
 352                 return this;
 353         };
 354
 355         /**
 356          * Update the contents of the label, text input and status of calendar to reflect selected value.
 357          *
 358          * @private
 359          */
 360         mw.widgets.DateInputWidget.prototype.updateUI = function () {
 361                 var moment;
 362                 if ( this.getValue() === '' ) {
 363                         this.textInput.setValue( '' );
 364                         this.calendar.setDate( null );
 365                         this.label.setLabel( this.placeholderLabel );
 366                         this.$element.addClass( 'mw-widget-dateInputWidget-empty' );
 367                 } else {
 368                         moment = this.getMoment();
 369                         if ( !this.inTextInput ) {
 370                                 this.textInput.setValue( moment.format( this.getInputFormat() ) );
 371                         }
 372                         if ( !this.inCalendar ) {
 373                                 this.calendar.setDate( this.getValue() );
 374                         }
 375                         this.label.setLabel( moment.format( this.getDisplayFormat() ) );
 376                         this.$element.removeClass( 'mw-widget-dateInputWidget-empty' );
 377                 }
 378         };
 379
 380         /**
 381          * Deactivate this input field for data entry. Closes the calendar and hides the text field.
 382          *
 383          * @private
 384          */
 385         mw.widgets.DateInputWidget.prototype.deactivate = function () {
 386                 this.$element.removeClass( 'mw-widget-dateInputWidget-active' );
 387                 this.$handle.show();
 388                 this.textInput.toggle( false );
 389                 this.calendar.toggle( false );
 390                 this.setValidityFlag();
 391         };
 392
 393         /**
 394          * Activate this input field for data entry. Opens the calendar and shows the text field.
 395          *
 396          * @private
 397          */
 398         mw.widgets.DateInputWidget.prototype.activate = function () {
 399                 this.calendar.resetUI();
 400                 this.$element.addClass( 'mw-widget-dateInputWidget-active' );
 401                 this.$handle.hide();
 402                 this.textInput.toggle( true );
 403                 this.calendar.toggle( true );
 404
 405                 this.textInput.$input.focus();
 406         };
 407
 408         /**
 409          * Get the date format to be used for handle label when the input is inactive.
 410          *
 411          * @private
 412          * @return {string} Format string
 413          */
 414         mw.widgets.DateInputWidget.prototype.getDisplayFormat = function () {
 415                 if ( this.displayFormat !== undefined ) {
 416                         return this.displayFormat;
 417                 }
 418
 419                 if ( this.calendar.getPrecision() === 'month' ) {
 420                         return 'MMMM YYYY';
 421                 } else {
 422                         // The formats Moment.js provides:
 423                         // * ll:   Month name, day of month, year
 424                         // * lll:  Month name, day of month, year, time
 425                         // * llll: Month name, day of month, day of week, year, time
 426                         //
 427                         // The format we want:
 428                         // * ????: Month name, day of month, day of week, year
 429                         //
 430                         // We try to construct it as 'llll - (lll - ll)' and hope for the best.
 431                         // This seems to work well for many languages (maybe even all?).
 432
 433                         var localeData = moment.localeData( moment.locale() ),
 434                                 llll = localeData.longDateFormat( 'llll' ),
 435                                 lll = localeData.longDateFormat( 'lll' ),
 436                                 ll = localeData.longDateFormat( 'll' ),
 437                                 format = llll.replace( lll.replace( ll, '' ), '' );
 438
 439                         return format;
 440                 }
 441         };
 442
 443         /**
 444          * Get the date format to be used for the text field when the input is active.
 445          *
 446          * @private
 447          * @return {string} Format string
 448          */
 449         mw.widgets.DateInputWidget.prototype.getInputFormat = function () {
 450                 if ( this.inputFormat !== undefined ) {
 451                         return this.inputFormat;
 452                 }
 453
 454                 return {
 455                         day: 'YYYY-MM-DD',
 456                         month: 'YYYY-MM'
 457                 }[ this.calendar.getPrecision() ];
 458         };
 459
 460         /**
 461          * Get the date format to be used internally for the value. This is not configurable in any way,
 462          * and always either 'YYYY-MM-DD' or 'YYYY-MM'.
 463          *
 464          * @private
 465          * @return {string} Format string
 466          */
 467         mw.widgets.DateInputWidget.prototype.getInternalFormat = function () {
 468                 return {
 469                         day: 'YYYY-MM-DD',
 470                         month: 'YYYY-MM'
 471                 }[ this.calendar.getPrecision() ];
 472         };
 473
 474         /**
 475          * Get the Moment object for current value.
 476          *
 477          * @return {Object} Moment object
 478          */
 479         mw.widgets.DateInputWidget.prototype.getMoment = function () {
 480                 return moment( this.getValue(), this.getInternalFormat() );
 481         };
 482
 483         /**
 484          * Handle mouse click events.
 485          *
 486          * @private
 487          * @param {jQuery.Event} e Mouse click event
 488          */
 489         mw.widgets.DateInputWidget.prototype.onClick = function ( e ) {
 490                 if ( !this.isDisabled() && e.which === 1 ) {
 491                         this.activate();
 492                 }
 493                 return false;
 494         };
 495
 496         /**
 497          * Handle key press events.
 498          *
 499          * @private
 500          * @param {jQuery.Event} e Key press event
 501          */
 502         mw.widgets.DateInputWidget.prototype.onKeyPress = function ( e ) {
 503                 if ( !this.isDisabled() &&
 504                         ( e.which === OO.ui.Keys.SPACE || e.which === OO.ui.Keys.ENTER )
 505                 ) {
 506                         this.activate();
 507                         return false;
 508                 }
 509         };
 510
 511         /**
 512          * Handle calendar key press events.
 513          *
 514          * @private
 515          * @param {jQuery.Event} e Key press event
 516          */
 517         mw.widgets.DateInputWidget.prototype.onCalendarKeyPress = function ( e ) {
 518                 if ( !this.isDisabled() && e.which === OO.ui.Keys.ENTER ) {
 519                         this.deactivate();
 520                         this.$handle.focus();
 521                         return false;
 522                 }
 523         };
 524
 525         /**
 526          * Handle calendar click events.
 527          *
 528          * @private
 529          * @param {jQuery.Event} e Mouse click event
 530          */
 531         mw.widgets.DateInputWidget.prototype.onCalendarClick = function ( e ) {
 532                 if (
 533                         !this.isDisabled() &&
 534                         e.which === 1 &&
 535                         $( e.target ).hasClass( 'mw-widget-calendarWidget-day' )
 536                 ) {
 537                         this.deactivate();
 538                         this.$handle.focus();
 539                         return false;
 540                 }
 541         };
 542
 543         /**
 544          * Handle text input enter events.
 545          *
 546          * @private
 547          */
 548         mw.widgets.DateInputWidget.prototype.onEnter = function () {
 549                 this.deactivate();
 550                 this.$handle.focus();
 551         };
 552
 553         /**
 554          * @private
 555          * @param {string} date Date string, to be valid, must be in 'YYYY-MM-DD' or 'YYYY-MM' format or
 556          *     (unless the field is required) empty
 557          * @return {boolean}
 558          */
 559         mw.widgets.DateInputWidget.prototype.validateDate = function ( date ) {
 560                 var isValid;
 561                 if ( date === '' ) {
 562                         isValid = !this.required;
 563                 } else {
 564                         isValid = this.isValidDate( date ) && this.isInRange( date );
 565                 }
 566                 return isValid;
 567         };
 568
 569         /**
 570          * @private
 571          * @param {string} date Date string, to be valid, must be in 'YYYY-MM-DD' or 'YYYY-MM' format
 572          * @return {boolean}
 573          */
 574         mw.widgets.DateInputWidget.prototype.isValidDate = function ( date ) {
 575                 // "Half-strict mode": for example, for the format 'YYYY-MM-DD', 2015-1-3 instead of 2015-01-03
 576                 // is okay, but 2015-01 isn't, and neither is 2015-01-foo. Use Moment's "fuzzy" mode and check
 577                 // parsing flags for the details (stolen from implementation of moment#isValid).
 578                 var
 579                         mom = moment( date, this.getInputFormat() ),
 580                         flags = mom.parsingFlags();
 581
 582                 return mom.isValid() && flags.charsLeftOver === 0 && flags.unusedTokens.length === 0;
 583         };
 584
 585         /**
 586          * Validates if the date is within the range configured with {@link #cfg-mustBeAfter}
 587          * and {@link #cfg-mustBeBefore}.
 588          *
 589          * @private
 590          * @param {string} date Date string, to be valid, must be empty (no date selected) or in
 591          *     'YYYY-MM-DD' or 'YYYY-MM' format to be valid
 592          * @return {boolean}
 593          */
 594         mw.widgets.DateInputWidget.prototype.isInRange = function ( date ) {
 595                 var momentDate, isAfter, isBefore;
 596                 if ( this.mustBeAfter === undefined && this.mustBeBefore === undefined ) {
 597                         return true;
 598                 }
 599                 momentDate = moment( date, 'YYYY-MM-DD' );
 600                 isAfter = ( this.mustBeAfter === undefined || momentDate.isAfter( this.mustBeAfter ) );
 601                 isBefore = ( this.mustBeBefore === undefined || momentDate.isBefore( this.mustBeBefore ) );
 602                 return isAfter && isBefore;
 603         };
 604
 605         /**
 606          * Get the validity of current value.
 607          *
 608          * This method returns a promise that resolves if the value is valid and rejects if
 609          * it isn't. Uses {@link #validateDate}.
 610          *
 611          * @return {jQuery.Promise} A promise that resolves if the value is valid, rejects if not.
 612          */
 613         mw.widgets.DateInputWidget.prototype.getValidity = function () {
 614                 var isValid = this.validateDate( this.getValue() );
 615
 616                 if ( isValid ) {
 617                         return $.Deferred().resolve().promise();
 618                 } else {
 619                         return $.Deferred().reject().promise();
 620                 }
 621         };
 622
 623         /**
 624          * Sets the 'invalid' flag appropriately.
 625          *
 626          * @param {boolean} [isValid] Optionally override validation result
 627          */
 628         mw.widgets.DateInputWidget.prototype.setValidityFlag = function ( isValid ) {
 629                 var widget = this,
 630                         setFlag = function ( valid ) {
 631                                 if ( !valid ) {
 632                                         widget.$input.attr( 'aria-invalid', 'true' );
 633                                 } else {
 634                                         widget.$input.removeAttr( 'aria-invalid' );
 635                                 }
 636                                 widget.setFlags( { invalid: !valid } );
 637                         };
 638
 639                 if ( isValid !== undefined ) {
 640                         setFlag( isValid );
 641                 } else {
 642                         this.getValidity().then( function () {
 643                                 setFlag( true );
 644                         }, function () {
 645                                 setFlag( false );
 646                         } );
 647                 }
 648         };
 649
 650 }( jQuery, mediaWiki ) );