resources/src/mediawiki.special/mediawiki.special.upload.js

   1 /**
   2  * JavaScript for Special:Upload
   3  *
   4  * @private
   5  * @class mw.special.upload
   6  * @singleton
   7  */
   8
   9 /* eslint-disable no-use-before-define */
  10 /* global Uint8Array */
  11
  12 ( function ( mw, $ ) {
  13         var uploadWarning, uploadTemplatePreview,
  14                 ajaxUploadDestCheck = mw.config.get( 'wgAjaxUploadDestCheck' ),
  15                 $license = $( '#wpLicense' );
  16
  17         window.wgUploadWarningObj = uploadWarning = {
  18                 responseCache: { '': '&nbsp;' },
  19                 nameToCheck: '',
  20                 typing: false,
  21                 delay: 500, // ms
  22                 timeoutID: false,
  23
  24                 keypress: function () {
  25                         if ( !ajaxUploadDestCheck ) {
  26                                 return;
  27                         }
  28
  29                         // Find file to upload
  30                         if ( !$( '#wpDestFile' ).length || !$( '#wpDestFile-warning' ).length ) {
  31                                 return;
  32                         }
  33
  34                         this.nameToCheck = $( '#wpDestFile' ).val();
  35
  36                         // Clear timer
  37                         if ( this.timeoutID ) {
  38                                 clearTimeout( this.timeoutID );
  39                         }
  40                         // Check response cache
  41                         if ( this.responseCache.hasOwnProperty( this.nameToCheck ) ) {
  42                                 this.setWarning( this.responseCache[ this.nameToCheck ] );
  43                                 return;
  44                         }
  45
  46                         this.timeoutID = setTimeout( function () {
  47                                 uploadWarning.timeout();
  48                         }, this.delay );
  49                 },
  50
  51                 checkNow: function ( fname ) {
  52                         if ( !ajaxUploadDestCheck ) {
  53                                 return;
  54                         }
  55                         if ( this.timeoutID ) {
  56                                 clearTimeout( this.timeoutID );
  57                         }
  58                         this.nameToCheck = fname;
  59                         this.timeout();
  60                 },
  61
  62                 timeout: function () {
  63                         var $spinnerDestCheck, title;
  64                         if ( !ajaxUploadDestCheck || this.nameToCheck.trim() === '' ) {
  65                                 return;
  66                         }
  67                         $spinnerDestCheck = $.createSpinner().insertAfter( '#wpDestFile' );
  68                         title = mw.Title.newFromText( this.nameToCheck, mw.config.get( 'wgNamespaceIds' ).file );
  69
  70                         ( new mw.Api() ).get( {
  71                                 formatversion: 2,
  72                                 action: 'query',
  73                                 // If title is empty, user input is invalid, the API call will produce details about why
  74                                 titles: [ title ? title.getPrefixedText() : this.nameToCheck ],
  75                                 prop: 'imageinfo',
  76                                 iiprop: 'uploadwarning',
  77                                 errorformat: 'html',
  78                                 errorlang: mw.config.get( 'wgUserLanguage' )
  79                         } ).done( function ( result ) {
  80                                 var
  81                                         resultOut = '',
  82                                         page = result.query.pages[ 0 ];
  83                                 if ( page.imageinfo ) {
  84                                         resultOut = page.imageinfo[ 0 ].html;
  85                                 } else if ( page.invalidreason ) {
  86                                         resultOut = page.invalidreason.html;
  87                                 }
  88                                 uploadWarning.processResult( resultOut, uploadWarning.nameToCheck );
  89                         } ).always( function () {
  90                                 $spinnerDestCheck.remove();
  91                         } );
  92                 },
  93
  94                 processResult: function ( result, fileName ) {
  95                         this.setWarning( result );
  96                         this.responseCache[ fileName ] = result;
  97                 },
  98
  99                 setWarning: function ( warning ) {
 100                         var $warningBox = $( '#wpDestFile-warning' ),
 101                                 $warning = $( $.parseHTML( warning ) );
 102                         mw.hook( 'wikipage.content' ).fire( $warning );
 103                         $warningBox.empty().append( $warning );
 104
 105                         // Set a value in the form indicating that the warning is acknowledged and
 106                         // doesn't need to be redisplayed post-upload
 107                         if ( !warning ) {
 108                                 $( '#wpDestFileWarningAck' ).val( '' );
 109                                 $warningBox.removeAttr( 'class' );
 110                         } else {
 111                                 $( '#wpDestFileWarningAck' ).val( '1' );
 112                                 $warningBox.attr( 'class', 'mw-destfile-warning' );
 113                         }
 114
 115                 }
 116         };
 117
 118         window.wgUploadTemplatePreviewObj = uploadTemplatePreview = {
 119
 120                 responseCache: { '': '' },
 121
 122                 /**
 123                  * @param {jQuery} $element The element whose .val() will be previewed
 124                  * @param {jQuery} $previewContainer The container to display the preview in
 125                  */
 126                 getPreview: function ( $element, $previewContainer ) {
 127                         var template = $element.val(),
 128                                 $spinner;
 129
 130                         if ( this.responseCache.hasOwnProperty( template ) ) {
 131                                 this.showPreview( this.responseCache[ template ], $previewContainer );
 132                                 return;
 133                         }
 134
 135                         $spinner = $.createSpinner().insertAfter( $element );
 136
 137                         ( new mw.Api() ).get( {
 138                                 formatversion: 2,
 139                                 action: 'parse',
 140                                 text: '{{' + template + '}}',
 141                                 title: $( '#wpDestFile' ).val() || 'File:Sample.jpg',
 142                                 prop: 'text',
 143                                 pst: true,
 144                                 uselang: mw.config.get( 'wgUserLanguage' )
 145                         } ).done( function ( result ) {
 146                                 uploadTemplatePreview.processResult( result, template, $previewContainer );
 147                         } ).always( function () {
 148                                 $spinner.remove();
 149                         } );
 150                 },
 151
 152                 processResult: function ( result, template, $previewContainer ) {
 153                         this.responseCache[ template ] = result.parse.text;
 154                         this.showPreview( this.responseCache[ template ], $previewContainer );
 155                 },
 156
 157                 showPreview: function ( preview, $previewContainer ) {
 158                         $previewContainer.html( preview );
 159                 }
 160
 161         };
 162
 163         $( function () {
 164                 // AJAX wpDestFile warnings
 165                 if ( ajaxUploadDestCheck ) {
 166                         // Insert an event handler that fetches upload warnings when wpDestFile
 167                         // has been changed
 168                         $( '#wpDestFile' ).change( function () {
 169                                 uploadWarning.checkNow( $( this ).val() );
 170                         } );
 171                         // Insert a row where the warnings will be displayed just below the
 172                         // wpDestFile row
 173                         $( '#mw-htmlform-description tbody' ).append(
 174                                 $( '<tr>' ).append(
 175                                         $( '<td>' )
 176                                                 .attr( 'id', 'wpDestFile-warning' )
 177                                                 .attr( 'colspan', 2 )
 178                                 )
 179                         );
 180                 }
 181
 182                 if ( mw.config.get( 'wgAjaxLicensePreview' ) && $license.length ) {
 183                         // License selector check
 184                         $license.change( function () {
 185                                 // We might show a preview
 186                                 uploadTemplatePreview.getPreview( $license, $( '#mw-license-preview' ) );
 187                         } );
 188
 189                         // License selector table row
 190                         $license.closest( 'tr' ).after(
 191                                 $( '<tr>' ).append(
 192                                         $( '<td>' ),
 193                                         $( '<td>' ).attr( 'id', 'mw-license-preview' )
 194                                 )
 195                         );
 196                 }
 197
 198                 // fillDestFile setup
 199                 $.each( mw.config.get( 'wgUploadSourceIds' ), function ( index, sourceId ) {
 200                         $( '#' + sourceId ).change( function () {
 201                                 var path, slash, backslash, fname;
 202                                 if ( !mw.config.get( 'wgUploadAutoFill' ) ) {
 203                                         return;
 204                                 }
 205                                 // Remove any previously flagged errors
 206                                 $( '#mw-upload-permitted' ).attr( 'class', '' );
 207                                 $( '#mw-upload-prohibited' ).attr( 'class', '' );
 208
 209                                 path = $( this ).val();
 210                                 // Find trailing part
 211                                 slash = path.lastIndexOf( '/' );
 212                                 backslash = path.lastIndexOf( '\\' );
 213                                 if ( slash === -1 && backslash === -1 ) {
 214                                         fname = path;
 215                                 } else if ( slash > backslash ) {
 216                                         fname = path.slice( slash + 1 );
 217                                 } else {
 218                                         fname = path.slice( backslash + 1 );
 219                                 }
 220
 221                                 // Clear the filename if it does not have a valid extension.
 222                                 // URLs are less likely to have a useful extension, so don't include them in the
 223                                 // extension check.
 224                                 if (
 225                                         mw.config.get( 'wgCheckFileExtensions' ) &&
 226                                         mw.config.get( 'wgStrictFileExtensions' ) &&
 227                                         Array.isArray( mw.config.get( 'wgFileExtensions' ) ) &&
 228                                         $( this ).attr( 'id' ) !== 'wpUploadFileURL'
 229                                 ) {
 230                                         if (
 231                                                 fname.lastIndexOf( '.' ) === -1 ||
 232                                                 mw.config.get( 'wgFileExtensions' ).map( function ( element ) {
 233                                                         return element.toLowerCase();
 234                                                 } ).indexOf( fname.slice( fname.lastIndexOf( '.' ) + 1 ).toLowerCase() ) === -1
 235                                         ) {
 236                                                 // Not a valid extension
 237                                                 // Clear the upload and set mw-upload-permitted to error
 238                                                 $( this ).val( '' );
 239                                                 $( '#mw-upload-permitted' ).attr( 'class', 'error' );
 240                                                 $( '#mw-upload-prohibited' ).attr( 'class', 'error' );
 241                                                 // Clear wpDestFile as well
 242                                                 $( '#wpDestFile' ).val( '' );
 243
 244                                                 return false;
 245                                         }
 246                                 }
 247
 248                                 // Replace spaces by underscores
 249                                 fname = fname.replace( / /g, '_' );
 250                                 // Capitalise first letter if needed
 251                                 if ( mw.config.get( 'wgCapitalizeUploads' ) ) {
 252                                         fname = fname[ 0 ].toUpperCase() + fname.slice( 1 );
 253                                 }
 254
 255                                 // Output result
 256                                 if ( $( '#wpDestFile' ).length ) {
 257                                         // Call decodeURIComponent function to remove possible URL-encoded characters
 258                                         // from the file name (T32390). Especially likely with upload-form-url.
 259                                         // decodeURIComponent can throw an exception if input is invalid utf-8
 260                                         try {
 261                                                 $( '#wpDestFile' ).val( decodeURIComponent( fname ) );
 262                                         } catch ( err ) {
 263                                                 $( '#wpDestFile' ).val( fname );
 264                                         }
 265                                         uploadWarning.checkNow( fname );
 266                                 }
 267                         } );
 268                 } );
 269         } );
 270
 271         // Add a preview to the upload form
 272         $( function () {
 273                 /**
 274                  * Is the FileAPI available with sufficient functionality?
 275                  *
 276                  * @return {boolean}
 277                  */
 278                 function hasFileAPI() {
 279                         return window.FileReader !== undefined;
 280                 }
 281
 282                 /**
 283                  * Check if this is a recognizable image type...
 284                  * Also excludes files over 10M to avoid going insane on memory usage.
 285                  *
 286                  * TODO: Is there a way we can ask the browser what's supported in `<img>`s?
 287                  *
 288                  * TODO: Put SVG back after working around Firefox 7 bug <https://phabricator.wikimedia.org/T33643>
 289                  *
 290                  * @param {File} file
 291                  * @return {boolean}
 292                  */
 293                 function fileIsPreviewable( file ) {
 294                         var known = [ 'image/png', 'image/gif', 'image/jpeg', 'image/svg+xml' ],
 295                                 tooHuge = 10 * 1024 * 1024;
 296                         return ( known.indexOf( file.type ) !== -1 ) && file.size > 0 && file.size < tooHuge;
 297                 }
 298
 299                 /**
 300                  * Format a file size attractively.
 301                  *
 302                  * TODO: Match numeric formatting
 303                  *
 304                  * @param {number} s
 305                  * @return {string}
 306                  */
 307                 function prettySize( s ) {
 308                         var sizeMsgs = [ 'size-bytes', 'size-kilobytes', 'size-megabytes', 'size-gigabytes' ];
 309                         while ( s >= 1024 && sizeMsgs.length > 1 ) {
 310                                 s /= 1024;
 311                                 sizeMsgs = sizeMsgs.slice( 1 );
 312                         }
 313                         return mw.msg( sizeMsgs[ 0 ], Math.round( s ) );
 314                 }
 315
 316                 /**
 317                  * Show a thumbnail preview of PNG, JPEG, GIF, and SVG files prior to upload
 318                  * in browsers supporting HTML5 FileAPI.
 319                  *
 320                  * As of this writing, known good:
 321                  *
 322                  * - Firefox 3.6+
 323                  * - Chrome 7.something
 324                  *
 325                  * TODO: Check file size limits and warn of likely failures
 326                  *
 327                  * @param {File} file
 328                  */
 329                 function showPreview( file ) {
 330                         var $canvas,
 331                                 ctx,
 332                                 meta,
 333                                 previewSize = 180,
 334                                 $spinner = $.createSpinner( { size: 'small', type: 'block' } )
 335                                         .css( { width: previewSize, height: previewSize } ),
 336                                 thumb = mw.template.get( 'mediawiki.special.upload', 'thumbnail.html' ).render();
 337
 338                         thumb
 339                                 .find( '.filename' ).text( file.name ).end()
 340                                 .find( '.fileinfo' ).text( prettySize( file.size ) ).end()
 341                                 .find( '.thumbinner' ).prepend( $spinner ).end();
 342
 343                         $canvas = $( '<canvas>' ).attr( { width: previewSize, height: previewSize } );
 344                         ctx = $canvas[ 0 ].getContext( '2d' );
 345                         $( '#mw-htmlform-source' ).parent().prepend( thumb );
 346
 347                         fetchPreview( file, function ( dataURL ) {
 348                                 var img = new Image(),
 349                                         rotation = 0;
 350
 351                                 if ( meta && meta.tiff && meta.tiff.Orientation ) {
 352                                         rotation = ( 360 - ( function () {
 353                                                 // See includes/media/Bitmap.php
 354                                                 switch ( meta.tiff.Orientation.value ) {
 355                                                         case 8:
 356                                                                 return 90;
 357                                                         case 3:
 358                                                                 return 180;
 359                                                         case 6:
 360                                                                 return 270;
 361                                                         default:
 362                                                                 return 0;
 363                                                 }
 364                                         }() ) ) % 360;
 365                                 }
 366
 367                                 img.onload = function () {
 368                                         var info, width, height, x, y, dx, dy, logicalWidth, logicalHeight;
 369
 370                                         // Fit the image within the previewSizexpreviewSize box
 371                                         if ( img.width > img.height ) {
 372                                                 width = previewSize;
 373                                                 height = img.height / img.width * previewSize;
 374                                         } else {
 375                                                 height = previewSize;
 376                                                 width = img.width / img.height * previewSize;
 377                                         }
 378                                         // Determine the offset required to center the image
 379                                         dx = ( 180 - width ) / 2;
 380                                         dy = ( 180 - height ) / 2;
 381                                         switch ( rotation ) {
 382                                                 // If a rotation is applied, the direction of the axis
 383                                                 // changes as well. You can derive the values below by
 384                                                 // drawing on paper an axis system, rotate it and see
 385                                                 // where the positive axis direction is
 386                                                 case 0:
 387                                                         x = dx;
 388                                                         y = dy;
 389                                                         logicalWidth = img.width;
 390                                                         logicalHeight = img.height;
 391                                                         break;
 392                                                 case 90:
 393
 394                                                         x = dx;
 395                                                         y = dy - previewSize;
 396                                                         logicalWidth = img.height;
 397                                                         logicalHeight = img.width;
 398                                                         break;
 399                                                 case 180:
 400                                                         x = dx - previewSize;
 401                                                         y = dy - previewSize;
 402                                                         logicalWidth = img.width;
 403                                                         logicalHeight = img.height;
 404                                                         break;
 405                                                 case 270:
 406                                                         x = dx - previewSize;
 407                                                         y = dy;
 408                                                         logicalWidth = img.height;
 409                                                         logicalHeight = img.width;
 410                                                         break;
 411                                         }
 412
 413                                         ctx.clearRect( 0, 0, 180, 180 );
 414                                         ctx.rotate( rotation / 180 * Math.PI );
 415                                         ctx.drawImage( img, x, y, width, height );
 416                                         $spinner.replaceWith( $canvas );
 417
 418                                         // Image size
 419                                         info = mw.msg( 'widthheight', logicalWidth, logicalHeight ) +
 420                                                 ', ' + prettySize( file.size );
 421
 422                                         $( '#mw-upload-thumbnail .fileinfo' ).text( info );
 423                                 };
 424                                 img.onerror = function () {
 425                                         // Can happen for example for invalid SVG files
 426                                         clearPreview();
 427                                 };
 428                                 img.src = dataURL;
 429                         }, mw.config.get( 'wgFileCanRotate' ) ? function ( data ) {
 430                                 try {
 431                                         meta = mw.libs.jpegmeta( data, file.fileName );
 432                                         // eslint-disable-next-line no-underscore-dangle, camelcase
 433                                         meta._binary_data = null;
 434                                 } catch ( e ) {
 435                                         meta = null;
 436                                 }
 437                         } : null );
 438                 }
 439
 440                 /**
 441                  * Start loading a file into memory; when complete, pass it as a
 442                  * data URL to the callback function. If the callbackBinary is set it will
 443                  * first be read as binary and afterwards as data URL. Useful if you want
 444                  * to do preprocessing on the binary data first.
 445                  *
 446                  * @param {File} file
 447                  * @param {Function} callback
 448                  * @param {Function} callbackBinary
 449                  */
 450                 function fetchPreview( file, callback, callbackBinary ) {
 451                         var reader = new FileReader();
 452                         if ( callbackBinary && 'readAsBinaryString' in reader ) {
 453                                 // To fetch JPEG metadata we need a binary string; start there.
 454                                 // TODO
 455                                 reader.onload = function () {
 456                                         callbackBinary( reader.result );
 457
 458                                         // Now run back through the regular code path.
 459                                         fetchPreview( file, callback );
 460                                 };
 461                                 reader.readAsBinaryString( file );
 462                         } else if ( callbackBinary && 'readAsArrayBuffer' in reader ) {
 463                                 // readAsArrayBuffer replaces readAsBinaryString
 464                                 // However, our JPEG metadata library wants a string.
 465                                 // So, this is going to be an ugly conversion.
 466                                 reader.onload = function () {
 467                                         var i,
 468                                                 buffer = new Uint8Array( reader.result ),
 469                                                 string = '';
 470                                         for ( i = 0; i < buffer.byteLength; i++ ) {
 471                                                 string += String.fromCharCode( buffer[ i ] );
 472                                         }
 473                                         callbackBinary( string );
 474
 475                                         // Now run back through the regular code path.
 476                                         fetchPreview( file, callback );
 477                                 };
 478                                 reader.readAsArrayBuffer( file );
 479                         } else if ( 'URL' in window && 'createObjectURL' in window.URL ) {
 480                                 // Supported in Firefox 4.0 and above <https://developer.mozilla.org/en/DOM/window.URL.createObjectURL>
 481                                 // WebKit has it in a namespace for now but that's ok. ;)
 482                                 //
 483                                 // Lifetime of this URL is until document close, which is fine
 484                                 // for Special:Upload -- if this code gets used on longer-running
 485                                 // pages, add a revokeObjectURL() when it's no longer needed.
 486                                 //
 487                                 // Prefer this over readAsDataURL for Firefox 7 due to bug reading
 488                                 // some SVG files from data URIs <https://bugzilla.mozilla.org/show_bug.cgi?id=694165>
 489                                 callback( window.URL.createObjectURL( file ) );
 490                         } else {
 491                                 // This ends up decoding the file to base-64 and back again, which
 492                                 // feels horribly inefficient.
 493                                 reader.onload = function () {
 494                                         callback( reader.result );
 495                                 };
 496                                 reader.readAsDataURL( file );
 497                         }
 498                 }
 499
 500                 /**
 501                  * Clear the file upload preview area.
 502                  */
 503                 function clearPreview() {
 504                         $( '#mw-upload-thumbnail' ).remove();
 505                 }
 506
 507                 /**
 508                  * Check if the file does not exceed the maximum size
 509                  *
 510                  * @param {File} file
 511                  * @return {boolean}
 512                  */
 513                 function checkMaxUploadSize( file ) {
 514                         var maxSize, $error;
 515
 516                         function getMaxUploadSize( type ) {
 517                                 var sizes = mw.config.get( 'wgMaxUploadSize' );
 518
 519                                 if ( sizes[ type ] !== undefined ) {
 520                                         return sizes[ type ];
 521                                 }
 522                                 return sizes[ '*' ];
 523                         }
 524
 525                         $( '.mw-upload-source-error' ).remove();
 526
 527                         maxSize = getMaxUploadSize( 'file' );
 528                         if ( file.size > maxSize ) {
 529                                 $error = $( '<p class="error mw-upload-source-error" id="wpSourceTypeFile-error">' +
 530                                         mw.message( 'largefileserver', file.size, maxSize ).escaped() + '</p>' );
 531
 532                                 $( '#wpUploadFile' ).after( $error );
 533
 534                                 return false;
 535                         }
 536
 537                         return true;
 538                 }
 539
 540                 /* Initialization */
 541                 if ( hasFileAPI() ) {
 542                         // Update thumbnail when the file selection control is updated.
 543                         $( '#wpUploadFile' ).change( function () {
 544                                 var file;
 545                                 clearPreview();
 546                                 if ( this.files && this.files.length ) {
 547                                         // Note: would need to be updated to handle multiple files.
 548                                         file = this.files[ 0 ];
 549
 550                                         if ( !checkMaxUploadSize( file ) ) {
 551                                                 return;
 552                                         }
 553
 554                                         if ( fileIsPreviewable( file ) ) {
 555                                                 showPreview( file );
 556                                         }
 557                                 }
 558                         } );
 559                 }
 560         } );
 561
 562         // Disable all upload source fields except the selected one
 563         $( function () {
 564                 var $rows = $( '.mw-htmlform-field-UploadSourceField' );
 565
 566                 $rows.on( 'change', 'input[type="radio"]', function ( e ) {
 567                         var currentRow = e.delegateTarget;
 568
 569                         if ( !this.checked ) {
 570                                 return;
 571                         }
 572
 573                         $( '.mw-upload-source-error' ).remove();
 574
 575                         // Enable selected upload method
 576                         $( currentRow ).find( 'input' ).prop( 'disabled', false );
 577
 578                         // Disable inputs of other upload methods
 579                         // (except for the radio button to re-enable it)
 580                         $rows
 581                                 .not( currentRow )
 582                                 .find( 'input[type!="radio"]' )
 583                                 .prop( 'disabled', true );
 584                 } );
 585
 586                 // Set initial state
 587                 if ( !$( '#wpSourceTypeurl' ).prop( 'checked' ) ) {
 588                         $( '#wpUploadFileURL' ).prop( 'disabled', true );
 589                 }
 590         } );
 591
 592         $( function () {
 593                 // Prevent losing work
 594                 var allowCloseWindow,
 595                         $uploadForm = $( '#mw-upload-form' );
 596
 597                 if ( !mw.user.options.get( 'useeditwarning' ) ) {
 598                         // If the user doesn't want edit warnings, don't set things up.
 599                         return;
 600                 }
 601
 602                 $uploadForm.data( 'origtext', $uploadForm.serialize() );
 603
 604                 allowCloseWindow = mw.confirmCloseWindow( {
 605                         test: function () {
 606                                 return $( '#wpUploadFile' ).get( 0 ).files.length !== 0 ||
 607                                         $uploadForm.data( 'origtext' ) !== $uploadForm.serialize();
 608                         },
 609
 610                         message: mw.msg( 'editwarning-warning' ),
 611                         namespace: 'uploadwarning'
 612                 } );
 613
 614                 $uploadForm.submit( function () {
 615                         allowCloseWindow.release();
 616                 } );
 617         } );
 618
 619         // Add tabindex to mw-editTools
 620         $( function () {
 621                 // Function to change tabindex for all links within mw-editTools
 622                 function setEditTabindex( $val ) {
 623                         $( '.mw-editTools' ).find( 'a' ).each( function () {
 624                                 $( this ).attr( 'tabindex', $val );
 625                         } );
 626                 }
 627
 628                 // Change tabindex to 0 if user pressed spaced or enter while focused
 629                 $( '.mw-editTools' ).on( 'keypress', function ( e ) {
 630                         // Don't continue if pressed key was not enter or spacebar
 631                         if ( e.which !== 13 && e.which !== 32 ) {
 632                                 return;
 633                         }
 634
 635                         // Change tabindex only when main div has focus
 636                         if ( $( this ).is( ':focus' ) ) {
 637                                 $( this ).find( 'a' ).first().focus();
 638                                 setEditTabindex( '0' );
 639                         }
 640                 } );
 641
 642                 // Reset tabindex for elements when user focused out mw-editTools
 643                 $( '.mw-editTools' ).on( 'focusout', function ( e ) {
 644                         // Don't continue if relatedTarget is within mw-editTools
 645                         if ( e.relatedTarget !== null && $( e.relatedTarget ).closest( '.mw-editTools' ).length > 0 ) {
 646                                 return;
 647                         }
 648
 649                         // Reset tabindex back to -1
 650                         setEditTabindex( '-1' );
 651                 } );
 652
 653                 // Set initial tabindex for mw-editTools to 0 and to -1 for all links
 654                 $( '.mw-editTools' ).attr( 'tabindex', '0' );
 655                 setEditTabindex( '-1' );
 656         } );
 657 }( mediaWiki, jQuery ) );