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   1  /* global plupload, pluploadL10n, ajaxurl, post_id, wpUploaderInit, deleteUserSetting, setUserSetting, getUserSetting, shortform */
   2  var topWin = window.dialogArguments || opener || parent || top, uploader, uploader_init;
   3  
   4  // Progress and success handlers for media multi uploads.
   5  function fileQueued( fileObj ) {
   6      // Get rid of unused form.
   7      jQuery( '.media-blank' ).remove();
   8  
   9      var items = jQuery( '#media-items' ).children(), postid = post_id || 0;
  10  
  11      // Collapse a single item.
  12      if ( items.length == 1 ) {
  13          items.removeClass( 'open' ).find( '.slidetoggle' ).slideUp( 200 );
  14      }
  15      // Create a progress bar containing the filename.
  16      jQuery( '<div class="media-item">' )
  17          .attr( 'id', 'media-item-' + fileObj.id )
  18          .addClass( 'child-of-' + postid )
  19          .append( jQuery( '<div class="filename original">' ).text( ' ' + fileObj.name ),
  20              '<div class="progress"><div class="percent">0%</div><div class="bar"></div></div>' )
  21          .appendTo( jQuery( '#media-items' ) );
  22  
  23      // Disable submit.
  24      jQuery( '#insert-gallery' ).prop( 'disabled', true );
  25  }
  26  
  27  function uploadStart() {
  28      try {
  29          if ( typeof topWin.tb_remove != 'undefined' )
  30              topWin.jQuery( '#TB_overlay' ).unbind( 'click', topWin.tb_remove );
  31      } catch( e ){}
  32  
  33      return true;
  34  }
  35  
  36  function uploadProgress( up, file ) {
  37      var item = jQuery( '#media-item-' + file.id );
  38  
  39      jQuery( '.bar', item ).width( ( 200 * file.loaded ) / file.size );
  40      jQuery( '.percent', item ).html( file.percent + '%' );
  41  }
  42  
  43  // Check to see if a large file failed to upload.
  44  function fileUploading( up, file ) {
  45      var hundredmb = 100 * 1024 * 1024,
  46          max = parseInt( up.settings.max_file_size, 10 );
  47  
  48      if ( max > hundredmb && file.size > hundredmb ) {
  49          setTimeout( function() {
  50              if ( file.status < 3 && file.loaded === 0 ) { // Not uploading.
  51                  wpFileError( file, pluploadL10n.big_upload_failed.replace( '%1$s', '<a class="uploader-html" href="#">' ).replace( '%2$s', '</a>' ) );
  52                  up.stop();  // Stop the whole queue.
  53                  up.removeFile( file );
  54                  up.start(); // Restart the queue.
  55              }
  56          }, 10000 ); // Wait for 10 seconds for the file to start uploading.
  57      }
  58  }
  59  
  60  function updateMediaForm() {
  61      var items = jQuery( '#media-items' ).children();
  62  
  63      // Just one file, no need for collapsible part.
  64      if ( items.length == 1 ) {
  65          items.addClass( 'open' ).find( '.slidetoggle' ).show();
  66          jQuery( '.insert-gallery' ).hide();
  67      } else if ( items.length > 1 ) {
  68          items.removeClass( 'open' );
  69          // Only show Gallery/Playlist buttons when there are at least two files.
  70          jQuery( '.insert-gallery' ).show();
  71      }
  72  
  73      // Only show Save buttons when there is at least one file.
  74      if ( items.not( '.media-blank' ).length > 0 )
  75          jQuery( '.savebutton' ).show();
  76      else
  77          jQuery( '.savebutton' ).hide();
  78  }
  79  
  80  function uploadSuccess( fileObj, serverData ) {
  81      var item = jQuery( '#media-item-' + fileObj.id );
  82  
  83      // On success serverData should be numeric,
  84      // fix bug in html4 runtime returning the serverData wrapped in a <pre> tag.
  85      if ( typeof serverData === 'string' ) {
  86          serverData = serverData.replace( /^<pre>(\d+)<\/pre>$/, '$1' );
  87  
  88          // If async-upload returned an error message, place it in the media item div and return.
  89          if ( /media-upload-error|error-div/.test( serverData ) ) {
  90              item.html( serverData );
  91              return;
  92          }
  93      }
  94  
  95      item.find( '.percent' ).html( pluploadL10n.crunching );
  96  
  97      prepareMediaItem( fileObj, serverData );
  98      updateMediaForm();
  99  
 100      // Increment the counter.
 101      if ( post_id && item.hasClass( 'child-of-' + post_id ) ) {
 102          jQuery( '#attachments-count' ).text( 1 * jQuery( '#attachments-count' ).text() + 1 );
 103      }
 104  }
 105  
 106  function setResize( arg ) {
 107      if ( arg ) {
 108          if ( window.resize_width && window.resize_height ) {
 109              uploader.settings.resize = {
 110                  enabled: true,
 111                  width: window.resize_width,
 112                  height: window.resize_height,
 113                  quality: 100
 114              };
 115          } else {
 116              uploader.settings.multipart_params.image_resize = true;
 117          }
 118      } else {
 119          delete( uploader.settings.multipart_params.image_resize );
 120      }
 121  }
 122  
 123  function prepareMediaItem( fileObj, serverData ) {
 124      var f = ( typeof shortform == 'undefined' ) ? 1 : 2, item = jQuery( '#media-item-' + fileObj.id );
 125      if ( f == 2 && shortform > 2 )
 126          f = shortform;
 127  
 128      try {
 129          if ( typeof topWin.tb_remove != 'undefined' )
 130              topWin.jQuery( '#TB_overlay' ).click( topWin.tb_remove );
 131      } catch( e ){}
 132  
 133      if ( isNaN( serverData ) || !serverData ) {
 134          // Old style: Append the HTML returned by the server -- thumbnail and form inputs.
 135          item.append( serverData );
 136          prepareMediaItemInit( fileObj );
 137      } else {
 138          // New style: server data is just the attachment ID, fetch the thumbnail and form html from the server.
 139          item.load( 'async-upload.php', {attachment_id:serverData, fetch:f}, function(){prepareMediaItemInit( fileObj );updateMediaForm();});
 140      }
 141  }
 142  
 143  function prepareMediaItemInit( fileObj ) {
 144      var item = jQuery( '#media-item-' + fileObj.id );
 145      // Clone the thumbnail as a "pinkynail" -- a tiny image to the left of the filename.
 146      jQuery( '.thumbnail', item ).clone().attr( 'class', 'pinkynail toggle' ).prependTo( item );
 147  
 148      // Replace the original filename with the new (unique) one assigned during upload.
 149      jQuery( '.filename.original', item ).replaceWith( jQuery( '.filename.new', item ) );
 150  
 151      // Bind Ajax to the new Delete button.
 152      jQuery( 'a.delete', item ).on( 'click', function(){
 153          // Tell the server to delete it. TODO: Handle exceptions.
 154          jQuery.ajax({
 155              url: ajaxurl,
 156              type: 'post',
 157              success: deleteSuccess,
 158              error: deleteError,
 159              id: fileObj.id,
 160              data: {
 161                  id : this.id.replace(/[^0-9]/g, '' ),
 162                  action : 'trash-post',
 163                  _ajax_nonce : this.href.replace(/^.*wpnonce=/,'' )
 164              }
 165          });
 166          return false;
 167      });
 168  
 169      // Bind Ajax to the new Undo button.
 170      jQuery( 'a.undo', item ).on( 'click', function(){
 171          // Tell the server to untrash it. TODO: Handle exceptions.
 172          jQuery.ajax({
 173              url: ajaxurl,
 174              type: 'post',
 175              id: fileObj.id,
 176              data: {
 177                  id : this.id.replace(/[^0-9]/g,'' ),
 178                  action: 'untrash-post',
 179                  _ajax_nonce: this.href.replace(/^.*wpnonce=/,'' )
 180              },
 181              success: function( ){
 182                  var type,
 183                      item = jQuery( '#media-item-' + fileObj.id );
 184  
 185                  if ( type = jQuery( '#type-of-' + fileObj.id ).val() )
 186                      jQuery( '#' + type + '-counter' ).text( jQuery( '#' + type + '-counter' ).text()-0+1 );
 187  
 188                  if ( post_id && item.hasClass( 'child-of-'+post_id ) )
 189                      jQuery( '#attachments-count' ).text( jQuery( '#attachments-count' ).text()-0+1 );
 190  
 191                  jQuery( '.filename .trashnotice', item ).remove();
 192                  jQuery( '.filename .title', item ).css( 'font-weight','normal' );
 193                  jQuery( 'a.undo', item ).addClass( 'hidden' );
 194                  jQuery( '.menu_order_input', item ).show();
 195                  item.css( {backgroundColor:'#ceb'} ).animate( {backgroundColor: '#fff'}, { queue: false, duration: 500, complete: function(){ jQuery( this ).css({backgroundColor:''}); } }).removeClass( 'undo' );
 196              }
 197          });
 198          return false;
 199      });
 200  
 201      // Open this item if it says to start open (e.g. to display an error).
 202      jQuery( '#media-item-' + fileObj.id + '.startopen' ).removeClass( 'startopen' ).addClass( 'open' ).find( 'slidetoggle' ).fadeIn();
 203  }
 204  
 205  // Generic error message.
 206  function wpQueueError( message ) {
 207      jQuery( '#media-upload-error' ).show().html( '<div class="notice notice-error"><p>' + message + '</p></div>' );
 208  }
 209  
 210  // File-specific error messages.
 211  function wpFileError( fileObj, message ) {
 212      itemAjaxError( fileObj.id, message );
 213  }
 214  
 215  function itemAjaxError( id, message ) {
 216      var item = jQuery( '#media-item-' + id ), filename = item.find( '.filename' ).text(), last_err = item.data( 'last-err' );
 217  
 218      if ( last_err == id ) // Prevent firing an error for the same file twice.
 219          return;
 220  
 221      item.html( '<div class="error-div">' +
 222                  '<a class="dismiss" href="#">' + pluploadL10n.dismiss + '</a>' +
 223                  '<strong>' + pluploadL10n.error_uploading.replace( '%s', jQuery.trim( filename )) + '</strong> ' +
 224                  message +
 225                  '</div>' ).data( 'last-err', id );
 226  }
 227  
 228  function deleteSuccess( data ) {
 229      var type, id, item;
 230      if ( data == '-1' )
 231          return itemAjaxError( this.id, 'You do not have permission. Has your session expired?' );
 232  
 233      if ( data == '0' )
 234          return itemAjaxError( this.id, 'Could not be deleted. Has it been deleted already?' );
 235  
 236      id = this.id;
 237      item = jQuery( '#media-item-' + id );
 238  
 239      // Decrement the counters.
 240      if ( type = jQuery( '#type-of-' + id ).val() )
 241          jQuery( '#' + type + '-counter' ).text( jQuery( '#' + type + '-counter' ).text() - 1 );
 242  
 243      if ( post_id && item.hasClass( 'child-of-'+post_id ) )
 244          jQuery( '#attachments-count' ).text( jQuery( '#attachments-count' ).text() - 1 );
 245  
 246      if ( jQuery( 'form.type-form #media-items' ).children().length == 1 && jQuery( '.hidden', '#media-items' ).length > 0 ) {
 247          jQuery( '.toggle' ).toggle();
 248          jQuery( '.slidetoggle' ).slideUp( 200 ).siblings().removeClass( 'hidden' );
 249      }
 250  
 251      // Vanish it.
 252      jQuery( '.toggle', item ).toggle();
 253      jQuery( '.slidetoggle', item ).slideUp( 200 ).siblings().removeClass( 'hidden' );
 254      item.css( {backgroundColor:'#faa'} ).animate( {backgroundColor:'#f4f4f4'}, {queue:false, duration:500} ).addClass( 'undo' );
 255  
 256      jQuery( '.filename:empty', item ).remove();
 257      jQuery( '.filename .title', item ).css( 'font-weight','bold' );
 258      jQuery( '.filename', item ).append( '<span class="trashnotice"> ' + pluploadL10n.deleted + ' </span>' ).siblings( 'a.toggle' ).hide();
 259      jQuery( '.filename', item ).append( jQuery( 'a.undo', item ).removeClass( 'hidden' ) );
 260      jQuery( '.menu_order_input', item ).hide();
 261  
 262      return;
 263  }
 264  
 265  function deleteError() {
 266  }
 267  
 268  function uploadComplete() {
 269      jQuery( '#insert-gallery' ).prop( 'disabled', false );
 270  }
 271  
 272  function switchUploader( s ) {
 273      if ( s ) {
 274          deleteUserSetting( 'uploader' );
 275          jQuery( '.media-upload-form' ).removeClass( 'html-uploader' );
 276  
 277          if ( typeof( uploader ) == 'object' )
 278              uploader.refresh();
 279  
 280          jQuery( '#plupload-browse-button' ).trigger( 'focus' );
 281      } else {
 282          setUserSetting( 'uploader', '1' ); // 1 == html uploader.
 283          jQuery( '.media-upload-form' ).addClass( 'html-uploader' );
 284          jQuery( '#async-upload' ).trigger( 'focus' );
 285      }
 286  }
 287  
 288  function uploadError( fileObj, errorCode, message, up ) {
 289      var hundredmb = 100 * 1024 * 1024, max;
 290  
 291      switch ( errorCode ) {
 292          case plupload.FAILED:
 293              wpFileError( fileObj, pluploadL10n.upload_failed );
 294              break;
 295          case plupload.FILE_EXTENSION_ERROR:
 296              wpFileExtensionError( up, fileObj, pluploadL10n.invalid_filetype );
 297              break;
 298          case plupload.FILE_SIZE_ERROR:
 299              uploadSizeError( up, fileObj );
 300              break;
 301          case plupload.IMAGE_FORMAT_ERROR:
 302              wpFileError( fileObj, pluploadL10n.not_an_image );
 303              break;
 304          case plupload.IMAGE_MEMORY_ERROR:
 305              wpFileError( fileObj, pluploadL10n.image_memory_exceeded );
 306              break;
 307          case plupload.IMAGE_DIMENSIONS_ERROR:
 308              wpFileError( fileObj, pluploadL10n.image_dimensions_exceeded );
 309              break;
 310          case plupload.GENERIC_ERROR:
 311              wpQueueError( pluploadL10n.upload_failed );
 312              break;
 313          case plupload.IO_ERROR:
 314              max = parseInt( up.settings.filters.max_file_size, 10 );
 315  
 316              if ( max > hundredmb && fileObj.size > hundredmb ) {
 317                  wpFileError( fileObj, pluploadL10n.big_upload_failed.replace( '%1$s', '<a class="uploader-html" href="#">' ).replace( '%2$s', '</a>' ) );
 318              } else {
 319                  wpQueueError( pluploadL10n.io_error );
 320              }
 321  
 322              break;
 323          case plupload.HTTP_ERROR:
 324              wpQueueError( pluploadL10n.http_error );
 325              break;
 326          case plupload.INIT_ERROR:
 327              jQuery( '.media-upload-form' ).addClass( 'html-uploader' );
 328              break;
 329          case plupload.SECURITY_ERROR:
 330              wpQueueError( pluploadL10n.security_error );
 331              break;
 332  /*        case plupload.UPLOAD_ERROR.UPLOAD_STOPPED:
 333          case plupload.UPLOAD_ERROR.FILE_CANCELLED:
 334              jQuery( '#media-item-' + fileObj.id ).remove();
 335              break;*/
 336          default:
 337              wpFileError( fileObj, pluploadL10n.default_error );
 338      }
 339  }
 340  
 341  function uploadSizeError( up, file ) {
 342      var message, errorDiv;
 343  
 344      message = pluploadL10n.file_exceeds_size_limit.replace( '%s', file.name );
 345  
 346      // Construct the error div.
 347      errorDiv = jQuery( '<div />' )
 348          .attr( {
 349              'id':    'media-item-' + file.id,
 350              'class': 'media-item error'
 351          } )
 352          .append(
 353              jQuery( '<p />' )
 354                  .text( message )
 355          );
 356  
 357      // Append the error.
 358      jQuery( '#media-items' ).append( errorDiv );
 359      up.removeFile( file );
 360  }
 361  
 362  function wpFileExtensionError( up, file, message ) {
 363      jQuery( '#media-items' ).append( '<div id="media-item-' + file.id + '" class="media-item error"><p>' + message + '</p></div>' );
 364      up.removeFile( file );
 365  }
 366  
 367  /**
 368   * Copies the attachment URL to the clipboard.
 369   *
 370   * @since 5.8.0
 371   *
 372   * @param {MouseEvent} event A click event.
 373   *
 374   * @return {void}
 375   */
 376  function copyAttachmentUploadURLClipboard() {
 377      var clipboard = new ClipboardJS( '.copy-attachment-url' ),
 378          successTimeout;
 379  
 380      clipboard.on( 'success', function( event ) {
 381          var triggerElement = jQuery( event.trigger ),
 382              successElement = jQuery( '.success', triggerElement.closest( '.copy-to-clipboard-container' ) );
 383  
 384          // Clear the selection and move focus back to the trigger.
 385          event.clearSelection();
 386          // Show success visual feedback.
 387          clearTimeout( successTimeout );
 388          successElement.removeClass( 'hidden' );
 389          // Hide success visual feedback after 3 seconds since last success.
 390          successTimeout = setTimeout( function() {
 391              successElement.addClass( 'hidden' );
 392          }, 3000 );
 393          // Handle success audible feedback.
 394          wp.a11y.speak( pluploadL10n.file_url_copied );
 395      } );
 396  }
 397  
 398  jQuery( document ).ready( function( $ ) {
 399      copyAttachmentUploadURLClipboard();
 400      var tryAgainCount = {};
 401      var tryAgain;
 402  
 403      $( '.media-upload-form' ).on( 'click.uploader', function( e ) {
 404          var target = $( e.target ), tr, c;
 405  
 406          if ( target.is( 'input[type="radio"]' ) ) { // Remember the last used image size and alignment.
 407              tr = target.closest( 'tr' );
 408  
 409              if ( tr.hasClass( 'align' ) )
 410                  setUserSetting( 'align', target.val() );
 411              else if ( tr.hasClass( 'image-size' ) )
 412                  setUserSetting( 'imgsize', target.val() );
 413  
 414          } else if ( target.is( 'button.button' ) ) { // Remember the last used image link url.
 415              c = e.target.className || '';
 416              c = c.match( /url([^ '"]+)/ );
 417  
 418              if ( c && c[1] ) {
 419                  setUserSetting( 'urlbutton', c[1] );
 420                  target.siblings( '.urlfield' ).val( target.data( 'link-url' ) );
 421              }
 422          } else if ( target.is( 'a.dismiss' ) ) {
 423              target.parents( '.media-item' ).fadeOut( 200, function() {
 424                  $( this ).remove();
 425              } );
 426          } else if ( target.is( '.upload-flash-bypass button' ) || target.is( 'a.uploader-html' ) ) { // Switch uploader to html4.
 427              $( '#media-items, p.submit, span.big-file-warning' ).css( 'display', 'none' );
 428              switchUploader( 0 );
 429              e.preventDefault();
 430          } else if ( target.is( '.upload-html-bypass button' ) ) { // Switch uploader to multi-file.
 431              $( '#media-items, p.submit, span.big-file-warning' ).css( 'display', '' );
 432              switchUploader( 1 );
 433              e.preventDefault();
 434          } else if ( target.is( 'a.describe-toggle-on' ) ) { // Show.
 435              target.parent().addClass( 'open' );
 436              target.siblings( '.slidetoggle' ).fadeIn( 250, function() {
 437                  var S = $( window ).scrollTop(),
 438                      H = $( window ).height(),
 439                      top = $( this ).offset().top,
 440                      h = $( this ).height(),
 441                      b,
 442                      B;
 443  
 444                  if ( H && top && h ) {
 445                      b = top + h;
 446                      B = S + H;
 447  
 448                      if ( b > B ) {
 449                          if ( b - B < top - S )
 450                              window.scrollBy( 0, ( b - B ) + 10 );
 451                          else
 452                              window.scrollBy( 0, top - S - 40 );
 453                      }
 454                  }
 455              } );
 456  
 457              e.preventDefault();
 458          } else if ( target.is( 'a.describe-toggle-off' ) ) { // Hide.
 459              target.siblings( '.slidetoggle' ).fadeOut( 250, function() {
 460                  target.parent().removeClass( 'open' );
 461              } );
 462  
 463              e.preventDefault();
 464          }
 465      });
 466  
 467      // Attempt to create image sub-sizes when an image was uploaded successfully
 468      // but the server responded with an HTTP 5xx error.
 469      tryAgain = function( up, error ) {
 470          var file = error.file;
 471          var times;
 472          var id;
 473  
 474          if ( ! error || ! error.responseHeaders ) {
 475              wpQueueError( pluploadL10n.http_error_image );
 476              return;
 477          }
 478  
 479          id = error.responseHeaders.match( /x-wp-upload-attachment-id:\s*(\d+)/i );
 480  
 481          if ( id && id[1] ) {
 482              id = id[1];
 483          } else {
 484              wpQueueError( pluploadL10n.http_error_image );
 485              return;
 486          }
 487  
 488          times = tryAgainCount[ file.id ];
 489  
 490          if ( times && times > 4 ) {
 491              /*
 492               * The file may have been uploaded and attachment post created,
 493               * but post-processing and resizing failed...
 494               * Do a cleanup then tell the user to scale down the image and upload it again.
 495               */
 496              $.ajax({
 497                  type: 'post',
 498                  url: ajaxurl,
 499                  dataType: 'json',
 500                  data: {
 501                      action: 'media-create-image-subsizes',
 502                      _wpnonce: wpUploaderInit.multipart_params._wpnonce,
 503                      attachment_id: id,
 504                      _wp_upload_failed_cleanup: true,
 505                  }
 506              });
 507  
 508              if ( error.message && ( error.status < 500 || error.status >= 600 ) ) {
 509                  wpQueueError( error.message );
 510              } else {
 511                  wpQueueError( pluploadL10n.http_error_image );
 512              }
 513  
 514              return;
 515          }
 516  
 517          if ( ! times ) {
 518              tryAgainCount[ file.id ] = 1;
 519          } else {
 520              tryAgainCount[ file.id ] = ++times;
 521          }
 522  
 523          // Try to create the missing image sizes.
 524          $.ajax({
 525              type: 'post',
 526              url: ajaxurl,
 527              dataType: 'json',
 528              data: {
 529                  action: 'media-create-image-subsizes',
 530                  _wpnonce: wpUploaderInit.multipart_params._wpnonce,
 531                  attachment_id: id,
 532                  _legacy_support: 'true',
 533              }
 534          }).done( function( response ) {
 535              var message;
 536  
 537              if ( response.success ) {
 538                  uploadSuccess( file, response.data.id );
 539              } else {
 540                  if ( response.data && response.data.message ) {
 541                      message = response.data.message;
 542                  }
 543  
 544                  wpQueueError( message || pluploadL10n.http_error_image );
 545              }
 546          }).fail( function( jqXHR ) {
 547              // If another HTTP 5xx error, try try again...
 548              if ( jqXHR.status >= 500 && jqXHR.status < 600 ) {
 549                  tryAgain( up, error );
 550                  return;
 551              }
 552  
 553              wpQueueError( pluploadL10n.http_error_image );
 554          });
 555      }
 556  
 557      // Init and set the uploader.
 558      uploader_init = function() {
 559          uploader = new plupload.Uploader( wpUploaderInit );
 560  
 561          $( '#image_resize' ).on( 'change', function() {
 562              var arg = $( this ).prop( 'checked' );
 563  
 564              setResize( arg );
 565  
 566              if ( arg )
 567                  setUserSetting( 'upload_resize', '1' );
 568              else
 569                  deleteUserSetting( 'upload_resize' );
 570          });
 571  
 572          uploader.bind( 'Init', function( up ) {
 573              var uploaddiv = $( '#plupload-upload-ui' );
 574  
 575              setResize( getUserSetting( 'upload_resize', false ) );
 576  
 577              if ( up.features.dragdrop && ! $( document.body ).hasClass( 'mobile' ) ) {
 578                  uploaddiv.addClass( 'drag-drop' );
 579  
 580                  $( '#drag-drop-area' ).on( 'dragover.wp-uploader', function() { // dragenter doesn't fire right :(
 581                      uploaddiv.addClass( 'drag-over' );
 582                  }).on( 'dragleave.wp-uploader, drop.wp-uploader', function() {
 583                      uploaddiv.removeClass( 'drag-over' );
 584                  });
 585              } else {
 586                  uploaddiv.removeClass( 'drag-drop' );
 587                  $( '#drag-drop-area' ).off( '.wp-uploader' );
 588              }
 589  
 590              if ( up.runtime === 'html4' ) {
 591                  $( '.upload-flash-bypass' ).hide();
 592              }
 593          });
 594  
 595          uploader.bind( 'postinit', function( up ) {
 596              up.refresh();
 597          });
 598  
 599          uploader.init();
 600  
 601          uploader.bind( 'FilesAdded', function( up, files ) {
 602              $( '#media-upload-error' ).empty();
 603              uploadStart();
 604  
 605              plupload.each( files, function( file ) {
 606                  if ( file.type === 'image/heic' && up.settings.heic_upload_error ) {
 607                      // Show error but do not block uploading.
 608                      wpQueueError( pluploadL10n.unsupported_image );
 609                  } else if ( file.type === 'image/webp' && up.settings.webp_upload_error ) {
 610                      // Disallow uploading of WebP images if the server cannot edit them.
 611                      wpQueueError( pluploadL10n.noneditable_image );
 612                      up.removeFile( file );
 613                      return;
 614                  } else if ( file.type === 'image/avif' && up.settings.avif_upload_error ) {
 615                      // Disallow uploading of AVIF images if the server cannot edit them.
 616                      wpQueueError( pluploadL10n.noneditable_image );
 617                      up.removeFile( file );
 618                      return;
 619                  }
 620  
 621                  fileQueued( file );
 622              });
 623  
 624              up.refresh();
 625              up.start();
 626          });
 627  
 628          uploader.bind( 'UploadFile', function( up, file ) {
 629              fileUploading( up, file );
 630          });
 631  
 632          uploader.bind( 'UploadProgress', function( up, file ) {
 633              uploadProgress( up, file );
 634          });
 635  
 636          uploader.bind( 'Error', function( up, error ) {
 637              var isImage = error.file && error.file.type && error.file.type.indexOf( 'image/' ) === 0;
 638              var status  = error && error.status;
 639  
 640              // If the file is an image and the error is HTTP 5xx try to create sub-sizes again.
 641              if ( isImage && status >= 500 && status < 600 ) {
 642                  tryAgain( up, error );
 643                  return;
 644              }
 645  
 646              uploadError( error.file, error.code, error.message, up );
 647              up.refresh();
 648          });
 649  
 650          uploader.bind( 'FileUploaded', function( up, file, response ) {
 651              uploadSuccess( file, response.response );
 652          });
 653  
 654          uploader.bind( 'UploadComplete', function() {
 655              uploadComplete();
 656          });
 657      };
 658  
 659      if ( typeof( wpUploaderInit ) == 'object' ) {
 660          uploader_init();
 661      }
 662  
 663  });