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/wp-admin/includes/ -> media.php (source)

   1  <?php
   2  /**
   3   * WordPress Administration Media API.
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   */
   8  
   9  /**
  10   * Defines the default media upload tabs
  11   *
  12   * @since 2.5.0
  13   *
  14   * @return string[] Default tabs.
  15   */
  16  function media_upload_tabs() {
  17      $_default_tabs = array(
  18          'type'     => __( 'From Computer' ), // Handler action suffix => tab text.
  19          'type_url' => __( 'From URL' ),
  20          'gallery'  => __( 'Gallery' ),
  21          'library'  => __( 'Media Library' ),
  22      );
  23  
  24      /**
  25       * Filters the available tabs in the legacy (pre-3.5.0) media popup.
  26       *
  27       * @since 2.5.0
  28       *
  29       * @param string[] $_default_tabs An array of media tabs.
  30       */
  31      return apply_filters( 'media_upload_tabs', $_default_tabs );
  32  }
  33  
  34  /**
  35   * Adds the gallery tab back to the tabs array if post has image attachments
  36   *
  37   * @since 2.5.0
  38   *
  39   * @global wpdb $wpdb WordPress database abstraction object.
  40   *
  41   * @param array $tabs
  42   * @return array $tabs with gallery if post has image attachment
  43   */
  44  function update_gallery_tab( $tabs ) {
  45      global $wpdb;
  46  
  47      if ( ! isset( $_REQUEST['post_id'] ) ) {
  48          unset( $tabs['gallery'] );
  49          return $tabs;
  50      }
  51  
  52      $post_id = (int) $_REQUEST['post_id'];
  53  
  54      if ( $post_id ) {
  55          $attachments = (int) $wpdb->get_var( $wpdb->prepare( "SELECT count(*) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' AND post_parent = %d", $post_id ) );
  56      }
  57  
  58      if ( empty( $attachments ) ) {
  59          unset( $tabs['gallery'] );
  60          return $tabs;
  61      }
  62  
  63      /* translators: %s: Number of attachments. */
  64      $tabs['gallery'] = sprintf( __( 'Gallery (%s)' ), "<span id='attachments-count'>$attachments</span>" );
  65  
  66      return $tabs;
  67  }
  68  
  69  /**
  70   * Outputs the legacy media upload tabs UI.
  71   *
  72   * @since 2.5.0
  73   *
  74   * @global string $redir_tab
  75   */
  76  function the_media_upload_tabs() {
  77      global $redir_tab;
  78      $tabs    = media_upload_tabs();
  79      $default = 'type';
  80  
  81      if ( ! empty( $tabs ) ) {
  82          echo "<ul id='sidemenu'>\n";
  83  
  84          if ( isset( $redir_tab ) && array_key_exists( $redir_tab, $tabs ) ) {
  85              $current = $redir_tab;
  86          } elseif ( isset( $_GET['tab'] ) && array_key_exists( $_GET['tab'], $tabs ) ) {
  87              $current = $_GET['tab'];
  88          } else {
  89              /** This filter is documented in wp-admin/media-upload.php */
  90              $current = apply_filters( 'media_upload_default_tab', $default );
  91          }
  92  
  93          foreach ( $tabs as $callback => $text ) {
  94              $class = '';
  95  
  96              if ( $current == $callback ) {
  97                  $class = " class='current'";
  98              }
  99  
 100              $href = add_query_arg(
 101                  array(
 102                      'tab'            => $callback,
 103                      's'              => false,
 104                      'paged'          => false,
 105                      'post_mime_type' => false,
 106                      'm'              => false,
 107                  )
 108              );
 109              $link = "<a href='" . esc_url( $href ) . "'$class>$text</a>";
 110              echo "\t<li id='" . esc_attr( "tab-$callback" ) . "'>$link</li>\n";
 111          }
 112  
 113          echo "</ul>\n";
 114      }
 115  }
 116  
 117  /**
 118   * Retrieves the image HTML to send to the editor.
 119   *
 120   * @since 2.5.0
 121   *
 122   * @param int          $id      Image attachment ID.
 123   * @param string       $caption Image caption.
 124   * @param string       $title   Image title attribute.
 125   * @param string       $align   Image CSS alignment property.
 126   * @param string       $url     Optional. Image src URL. Default empty.
 127   * @param bool|string  $rel     Optional. Value for rel attribute or whether to add a default value. Default false.
 128   * @param string|int[] $size    Optional. Image size. Accepts any registered image size name, or an array of
 129   *                              width and height values in pixels (in that order). Default 'medium'.
 130   * @param string       $alt     Optional. Image alt attribute. Default empty.
 131   * @return string The HTML output to insert into the editor.
 132   */
 133  function get_image_send_to_editor( $id, $caption, $title, $align, $url = '', $rel = false, $size = 'medium', $alt = '' ) {
 134  
 135      $html = get_image_tag( $id, $alt, '', $align, $size );
 136  
 137      if ( $rel ) {
 138          if ( is_string( $rel ) ) {
 139              $rel = ' rel="' . esc_attr( $rel ) . '"';
 140          } else {
 141              $rel = ' rel="attachment wp-att-' . (int) $id . '"';
 142          }
 143      } else {
 144          $rel = '';
 145      }
 146  
 147      if ( $url ) {
 148          $html = '<a href="' . esc_attr( $url ) . '"' . $rel . '>' . $html . '</a>';
 149      }
 150  
 151      /**
 152       * Filters the image HTML markup to send to the editor when inserting an image.
 153       *
 154       * @since 2.5.0
 155       * @since 5.6.0 The `$rel` parameter was added.
 156       *
 157       * @param string       $html    The image HTML markup to send.
 158       * @param int          $id      The attachment ID.
 159       * @param string       $caption The image caption.
 160       * @param string       $title   The image title.
 161       * @param string       $align   The image alignment.
 162       * @param string       $url     The image source URL.
 163       * @param string|int[] $size    Requested image size. Can be any registered image size name, or
 164       *                              an array of width and height values in pixels (in that order).
 165       * @param string       $alt     The image alternative, or alt, text.
 166       * @param string       $rel     The image rel attribute.
 167       */
 168      $html = apply_filters( 'image_send_to_editor', $html, $id, $caption, $title, $align, $url, $size, $alt, $rel );
 169  
 170      return $html;
 171  }
 172  
 173  /**
 174   * Adds image shortcode with caption to editor.
 175   *
 176   * @since 2.6.0
 177   *
 178   * @param string  $html    The image HTML markup to send.
 179   * @param int     $id      Image attachment ID.
 180   * @param string  $caption Image caption.
 181   * @param string  $title   Image title attribute (not used).
 182   * @param string  $align   Image CSS alignment property.
 183   * @param string  $url     Image source URL (not used).
 184   * @param string  $size    Image size (not used).
 185   * @param string  $alt     Image `alt` attribute (not used).
 186   * @return string The image HTML markup with caption shortcode.
 187   */
 188  function image_add_caption( $html, $id, $caption, $title, $align, $url, $size, $alt = '' ) {
 189  
 190      /**
 191       * Filters the caption text.
 192       *
 193       * Note: If the caption text is empty, the caption shortcode will not be appended
 194       * to the image HTML when inserted into the editor.
 195       *
 196       * Passing an empty value also prevents the {@see 'image_add_caption_shortcode'}
 197       * Filters from being evaluated at the end of image_add_caption().
 198       *
 199       * @since 4.1.0
 200       *
 201       * @param string $caption The original caption text.
 202       * @param int    $id      The attachment ID.
 203       */
 204      $caption = apply_filters( 'image_add_caption_text', $caption, $id );
 205  
 206      /**
 207       * Filters whether to disable captions.
 208       *
 209       * Prevents image captions from being appended to image HTML when inserted into the editor.
 210       *
 211       * @since 2.6.0
 212       *
 213       * @param bool $bool Whether to disable appending captions. Returning true from the filter
 214       *                   will disable captions. Default empty string.
 215       */
 216      if ( empty( $caption ) || apply_filters( 'disable_captions', '' ) ) {
 217          return $html;
 218      }
 219  
 220      $id = ( 0 < (int) $id ) ? 'attachment_' . $id : '';
 221  
 222      if ( ! preg_match( '/width=["\']([0-9]+)/', $html, $matches ) ) {
 223          return $html;
 224      }
 225  
 226      $width = $matches[1];
 227  
 228      $caption = str_replace( array( "\r\n", "\r" ), "\n", $caption );
 229      $caption = preg_replace_callback( '/<[a-zA-Z0-9]+(?: [^<>]+>)*/', '_cleanup_image_add_caption', $caption );
 230  
 231      // Convert any remaining line breaks to <br />.
 232      $caption = preg_replace( '/[ \n\t]*\n[ \t]*/', '<br />', $caption );
 233  
 234      $html = preg_replace( '/(class=["\'][^\'"]*)align(none|left|right|center)\s?/', '$1', $html );
 235      if ( empty( $align ) ) {
 236          $align = 'none';
 237      }
 238  
 239      $shcode = '[caption id="' . $id . '" align="align' . $align . '" width="' . $width . '"]' . $html . ' ' . $caption . '[/caption]';
 240  
 241      /**
 242       * Filters the image HTML markup including the caption shortcode.
 243       *
 244       * @since 2.6.0
 245       *
 246       * @param string $shcode The image HTML markup with caption shortcode.
 247       * @param string $html   The image HTML markup.
 248       */
 249      return apply_filters( 'image_add_caption_shortcode', $shcode, $html );
 250  }
 251  
 252  /**
 253   * Private preg_replace callback used in image_add_caption().
 254   *
 255   * @access private
 256   * @since 3.4.0
 257   */
 258  function _cleanup_image_add_caption( $matches ) {
 259      // Remove any line breaks from inside the tags.
 260      return preg_replace( '/[\r\n\t]+/', ' ', $matches[0] );
 261  }
 262  
 263  /**
 264   * Adds image HTML to editor.
 265   *
 266   * @since 2.5.0
 267   *
 268   * @param string $html
 269   */
 270  function media_send_to_editor( $html ) {
 271      ?>
 272      <script type="text/javascript">
 273      var win = window.dialogArguments || opener || parent || top;
 274      win.send_to_editor( <?php echo wp_json_encode( $html ); ?> );
 275      </script>
 276      <?php
 277      exit;
 278  }
 279  
 280  /**
 281   * Saves a file submitted from a POST request and create an attachment post for it.
 282   *
 283   * @since 2.5.0
 284   *
 285   * @param string $file_id   Index of the `$_FILES` array that the file was sent. Required.
 286   * @param int    $post_id   The post ID of a post to attach the media item to. Required, but can
 287   *                          be set to 0, creating a media item that has no relationship to a post.
 288   * @param array  $post_data Optional. Overwrite some of the attachment.
 289   * @param array  $overrides Optional. Override the wp_handle_upload() behavior.
 290   * @return int|WP_Error ID of the attachment or a WP_Error object on failure.
 291   */
 292  function media_handle_upload( $file_id, $post_id, $post_data = array(), $overrides = array( 'test_form' => false ) ) {
 293      $time = current_time( 'mysql' );
 294      $post = get_post( $post_id );
 295  
 296      if ( $post ) {
 297          // The post date doesn't usually matter for pages, so don't backdate this upload.
 298          if ( 'page' !== $post->post_type && substr( $post->post_date, 0, 4 ) > 0 ) {
 299              $time = $post->post_date;
 300          }
 301      }
 302  
 303      $file = wp_handle_upload( $_FILES[ $file_id ], $overrides, $time );
 304  
 305      if ( isset( $file['error'] ) ) {
 306          return new WP_Error( 'upload_error', $file['error'] );
 307      }
 308  
 309      $name = $_FILES[ $file_id ]['name'];
 310      $ext  = pathinfo( $name, PATHINFO_EXTENSION );
 311      $name = wp_basename( $name, ".$ext" );
 312  
 313      $url     = $file['url'];
 314      $type    = $file['type'];
 315      $file    = $file['file'];
 316      $title   = sanitize_text_field( $name );
 317      $content = '';
 318      $excerpt = '';
 319  
 320      if ( preg_match( '#^audio#', $type ) ) {
 321          $meta = wp_read_audio_metadata( $file );
 322  
 323          if ( ! empty( $meta['title'] ) ) {
 324              $title = $meta['title'];
 325          }
 326  
 327          if ( ! empty( $title ) ) {
 328  
 329              if ( ! empty( $meta['album'] ) && ! empty( $meta['artist'] ) ) {
 330                  /* translators: 1: Audio track title, 2: Album title, 3: Artist name. */
 331                  $content .= sprintf( __( '"%1$s" from %2$s by %3$s.' ), $title, $meta['album'], $meta['artist'] );
 332              } elseif ( ! empty( $meta['album'] ) ) {
 333                  /* translators: 1: Audio track title, 2: Album title. */
 334                  $content .= sprintf( __( '"%1$s" from %2$s.' ), $title, $meta['album'] );
 335              } elseif ( ! empty( $meta['artist'] ) ) {
 336                  /* translators: 1: Audio track title, 2: Artist name. */
 337                  $content .= sprintf( __( '"%1$s" by %2$s.' ), $title, $meta['artist'] );
 338              } else {
 339                  /* translators: %s: Audio track title. */
 340                  $content .= sprintf( __( '"%s".' ), $title );
 341              }
 342          } elseif ( ! empty( $meta['album'] ) ) {
 343  
 344              if ( ! empty( $meta['artist'] ) ) {
 345                  /* translators: 1: Audio album title, 2: Artist name. */
 346                  $content .= sprintf( __( '%1$s by %2$s.' ), $meta['album'], $meta['artist'] );
 347              } else {
 348                  $content .= $meta['album'] . '.';
 349              }
 350          } elseif ( ! empty( $meta['artist'] ) ) {
 351  
 352              $content .= $meta['artist'] . '.';
 353  
 354          }
 355  
 356          if ( ! empty( $meta['year'] ) ) {
 357              /* translators: Audio file track information. %d: Year of audio track release. */
 358              $content .= ' ' . sprintf( __( 'Released: %d.' ), $meta['year'] );
 359          }
 360  
 361          if ( ! empty( $meta['track_number'] ) ) {
 362              $track_number = explode( '/', $meta['track_number'] );
 363  
 364              if ( isset( $track_number[1] ) ) {
 365                  /* translators: Audio file track information. 1: Audio track number, 2: Total audio tracks. */
 366                  $content .= ' ' . sprintf( __( 'Track %1$s of %2$s.' ), number_format_i18n( $track_number[0] ), number_format_i18n( $track_number[1] ) );
 367              } else {
 368                  /* translators: Audio file track information. %s: Audio track number. */
 369                  $content .= ' ' . sprintf( __( 'Track %s.' ), number_format_i18n( $track_number[0] ) );
 370              }
 371          }
 372  
 373          if ( ! empty( $meta['genre'] ) ) {
 374              /* translators: Audio file genre information. %s: Audio genre name. */
 375              $content .= ' ' . sprintf( __( 'Genre: %s.' ), $meta['genre'] );
 376          }
 377  
 378          // Use image exif/iptc data for title and caption defaults if possible.
 379      } elseif ( 0 === strpos( $type, 'image/' ) ) {
 380          $image_meta = wp_read_image_metadata( $file );
 381  
 382          if ( $image_meta ) {
 383              if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
 384                  $title = $image_meta['title'];
 385              }
 386  
 387              if ( trim( $image_meta['caption'] ) ) {
 388                  $excerpt = $image_meta['caption'];
 389              }
 390          }
 391      }
 392  
 393      // Construct the attachment array.
 394      $attachment = array_merge(
 395          array(
 396              'post_mime_type' => $type,
 397              'guid'           => $url,
 398              'post_parent'    => $post_id,
 399              'post_title'     => $title,
 400              'post_content'   => $content,
 401              'post_excerpt'   => $excerpt,
 402          ),
 403          $post_data
 404      );
 405  
 406      // This should never be set as it would then overwrite an existing attachment.
 407      unset( $attachment['ID'] );
 408  
 409      // Save the data.
 410      $attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );
 411  
 412      if ( ! is_wp_error( $attachment_id ) ) {
 413          // Set a custom header with the attachment_id.
 414          // Used by the browser/client to resume creating image sub-sizes after a PHP fatal error.
 415          if ( ! headers_sent() ) {
 416              header( 'X-WP-Upload-Attachment-ID: ' . $attachment_id );
 417          }
 418  
 419          // The image sub-sizes are created during wp_generate_attachment_metadata().
 420          // This is generally slow and may cause timeouts or out of memory errors.
 421          wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
 422      }
 423  
 424      return $attachment_id;
 425  }
 426  
 427  /**
 428   * Handles a side-loaded file in the same way as an uploaded file is handled by media_handle_upload().
 429   *
 430   * @since 2.6.0
 431   * @since 5.3.0 The `$post_id` parameter was made optional.
 432   *
 433   * @param array  $file_array Array similar to a `$_FILES` upload array.
 434   * @param int    $post_id    Optional. The post ID the media is associated with.
 435   * @param string $desc       Optional. Description of the side-loaded file. Default null.
 436   * @param array  $post_data  Optional. Post data to override. Default empty array.
 437   * @return int|WP_Error The ID of the attachment or a WP_Error on failure.
 438   */
 439  function media_handle_sideload( $file_array, $post_id = 0, $desc = null, $post_data = array() ) {
 440      $overrides = array( 'test_form' => false );
 441  
 442      $time = current_time( 'mysql' );
 443      $post = get_post( $post_id );
 444  
 445      if ( $post ) {
 446          if ( substr( $post->post_date, 0, 4 ) > 0 ) {
 447              $time = $post->post_date;
 448          }
 449      }
 450  
 451      $file = wp_handle_sideload( $file_array, $overrides, $time );
 452  
 453      if ( isset( $file['error'] ) ) {
 454          return new WP_Error( 'upload_error', $file['error'] );
 455      }
 456  
 457      $url     = $file['url'];
 458      $type    = $file['type'];
 459      $file    = $file['file'];
 460      $title   = preg_replace( '/\.[^.]+$/', '', wp_basename( $file ) );
 461      $content = '';
 462  
 463      // Use image exif/iptc data for title and caption defaults if possible.
 464      $image_meta = wp_read_image_metadata( $file );
 465  
 466      if ( $image_meta ) {
 467          if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
 468              $title = $image_meta['title'];
 469          }
 470  
 471          if ( trim( $image_meta['caption'] ) ) {
 472              $content = $image_meta['caption'];
 473          }
 474      }
 475  
 476      if ( isset( $desc ) ) {
 477          $title = $desc;
 478      }
 479  
 480      // Construct the attachment array.
 481      $attachment = array_merge(
 482          array(
 483              'post_mime_type' => $type,
 484              'guid'           => $url,
 485              'post_parent'    => $post_id,
 486              'post_title'     => $title,
 487              'post_content'   => $content,
 488          ),
 489          $post_data
 490      );
 491  
 492      // This should never be set as it would then overwrite an existing attachment.
 493      unset( $attachment['ID'] );
 494  
 495      // Save the attachment metadata.
 496      $attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );
 497  
 498      if ( ! is_wp_error( $attachment_id ) ) {
 499          wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
 500      }
 501  
 502      return $attachment_id;
 503  }
 504  
 505  /**
 506   * Outputs the iframe to display the media upload page.
 507   *
 508   * @since 2.5.0
 509   * @since 5.3.0 Formalized the existing and already documented `...$args` parameter
 510   *              by adding it to the function signature.
 511   *
 512   * @global int $body_id
 513   *
 514   * @param callable $content_func Function that outputs the content.
 515   * @param mixed    ...$args      Optional additional parameters to pass to the callback function when it's called.
 516   */
 517  function wp_iframe( $content_func, ...$args ) {
 518      _wp_admin_html_begin();
 519      ?>
 520      <title><?php bloginfo( 'name' ); ?> &rsaquo; <?php _e( 'Uploads' ); ?> &#8212; <?php _e( 'WordPress' ); ?></title>
 521      <?php
 522  
 523      wp_enqueue_style( 'colors' );
 524      // Check callback name for 'media'.
 525      if (
 526          ( is_array( $content_func ) && ! empty( $content_func[1] ) && 0 === strpos( (string) $content_func[1], 'media' ) ) ||
 527          ( ! is_array( $content_func ) && 0 === strpos( $content_func, 'media' ) )
 528      ) {
 529          wp_enqueue_style( 'deprecated-media' );
 530      }
 531  
 532      ?>
 533      <script type="text/javascript">
 534      addLoadEvent = function(func){if(typeof jQuery!="undefined")jQuery(document).ready(func);else if(typeof wpOnload!='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
 535      var ajaxurl = '<?php echo admin_url( 'admin-ajax.php', 'relative' ); ?>', pagenow = 'media-upload-popup', adminpage = 'media-upload-popup',
 536      isRtl = <?php echo (int) is_rtl(); ?>;
 537      </script>
 538      <?php
 539      /** This action is documented in wp-admin/admin-header.php */
 540      do_action( 'admin_enqueue_scripts', 'media-upload-popup' );
 541  
 542      /**
 543       * Fires when admin styles enqueued for the legacy (pre-3.5.0) media upload popup are printed.
 544       *
 545       * @since 2.9.0
 546       */
 547      do_action( 'admin_print_styles-media-upload-popup' );  // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 548  
 549      /** This action is documented in wp-admin/admin-header.php */
 550      do_action( 'admin_print_styles' );
 551  
 552      /**
 553       * Fires when admin scripts enqueued for the legacy (pre-3.5.0) media upload popup are printed.
 554       *
 555       * @since 2.9.0
 556       */
 557      do_action( 'admin_print_scripts-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 558  
 559      /** This action is documented in wp-admin/admin-header.php */
 560      do_action( 'admin_print_scripts' );
 561  
 562      /**
 563       * Fires when scripts enqueued for the admin header for the legacy (pre-3.5.0)
 564       * media upload popup are printed.
 565       *
 566       * @since 2.9.0
 567       */
 568      do_action( 'admin_head-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 569  
 570      /** This action is documented in wp-admin/admin-header.php */
 571      do_action( 'admin_head' );
 572  
 573      if ( is_string( $content_func ) ) {
 574          /**
 575           * Fires in the admin header for each specific form tab in the legacy
 576           * (pre-3.5.0) media upload popup.
 577           *
 578           * The dynamic portion of the hook, `$content_func`, refers to the form
 579           * callback for the media upload type. Possible values include
 580           * 'media_upload_type_form', 'media_upload_type_url_form', and
 581           * 'media_upload_library_form'.
 582           *
 583           * @since 2.5.0
 584           */
 585          do_action( "admin_head_{$content_func}" );
 586      }
 587  
 588      $body_id_attr = '';
 589  
 590      if ( isset( $GLOBALS['body_id'] ) ) {
 591          $body_id_attr = ' id="' . $GLOBALS['body_id'] . '"';
 592      }
 593  
 594      ?>
 595      </head>
 596      <body<?php echo $body_id_attr; ?> class="wp-core-ui no-js">
 597      <script type="text/javascript">
 598      document.body.className = document.body.className.replace('no-js', 'js');
 599      </script>
 600      <?php
 601  
 602      call_user_func_array( $content_func, $args );
 603  
 604      /** This action is documented in wp-admin/admin-footer.php */
 605      do_action( 'admin_print_footer_scripts' );
 606  
 607      ?>
 608      <script type="text/javascript">if(typeof wpOnload=='function')wpOnload();</script>
 609      </body>
 610      </html>
 611      <?php
 612  }
 613  
 614  /**
 615   * Adds the media button to the editor
 616   *
 617   * @since 2.5.0
 618   *
 619   * @global int $post_ID
 620   *
 621   * @param string $editor_id
 622   */
 623  function media_buttons( $editor_id = 'content' ) {
 624      static $instance = 0;
 625      $instance++;
 626  
 627      $post = get_post();
 628  
 629      if ( ! $post && ! empty( $GLOBALS['post_ID'] ) ) {
 630          $post = $GLOBALS['post_ID'];
 631      }
 632  
 633      wp_enqueue_media( array( 'post' => $post ) );
 634  
 635      $img = '<span class="wp-media-buttons-icon"></span> ';
 636  
 637      $id_attribute = 1 === $instance ? ' id="insert-media-button"' : '';
 638  
 639      printf(
 640          '<button type="button"%s class="button insert-media add_media" data-editor="%s">%s</button>',
 641          $id_attribute,
 642          esc_attr( $editor_id ),
 643          $img . __( 'Add Media' )
 644      );
 645  
 646      /**
 647       * Filters the legacy (pre-3.5.0) media buttons.
 648       *
 649       * Use {@see 'media_buttons'} action instead.
 650       *
 651       * @since 2.5.0
 652       * @deprecated 3.5.0 Use {@see 'media_buttons'} action instead.
 653       *
 654       * @param string $string Media buttons context. Default empty.
 655       */
 656      $legacy_filter = apply_filters_deprecated( 'media_buttons_context', array( '' ), '3.5.0', 'media_buttons' );
 657  
 658      if ( $legacy_filter ) {
 659          // #WP22559. Close <a> if a plugin started by closing <a> to open their own <a> tag.
 660          if ( 0 === stripos( trim( $legacy_filter ), '</a>' ) ) {
 661              $legacy_filter .= '</a>';
 662          }
 663          echo $legacy_filter;
 664      }
 665  }
 666  
 667  /**
 668   * @global int $post_ID
 669   * @param string $type
 670   * @param int    $post_id
 671   * @param string $tab
 672   * @return string
 673   */
 674  function get_upload_iframe_src( $type = null, $post_id = null, $tab = null ) {
 675      global $post_ID;
 676  
 677      if ( empty( $post_id ) ) {
 678          $post_id = $post_ID;
 679      }
 680  
 681      $upload_iframe_src = add_query_arg( 'post_id', (int) $post_id, admin_url( 'media-upload.php' ) );
 682  
 683      if ( $type && 'media' !== $type ) {
 684          $upload_iframe_src = add_query_arg( 'type', $type, $upload_iframe_src );
 685      }
 686  
 687      if ( ! empty( $tab ) ) {
 688          $upload_iframe_src = add_query_arg( 'tab', $tab, $upload_iframe_src );
 689      }
 690  
 691      /**
 692       * Filters the upload iframe source URL for a specific media type.
 693       *
 694       * The dynamic portion of the hook name, `$type`, refers to the type
 695       * of media uploaded.
 696       *
 697       * @since 3.0.0
 698       *
 699       * @param string $upload_iframe_src The upload iframe source URL by type.
 700       */
 701      $upload_iframe_src = apply_filters( "{$type}_upload_iframe_src", $upload_iframe_src );
 702  
 703      return add_query_arg( 'TB_iframe', true, $upload_iframe_src );
 704  }
 705  
 706  /**
 707   * Handles form submissions for the legacy media uploader.
 708   *
 709   * @since 2.5.0
 710   *
 711   * @return mixed void|object WP_Error on failure
 712   */
 713  function media_upload_form_handler() {
 714      check_admin_referer( 'media-form' );
 715  
 716      $errors = null;
 717  
 718      if ( isset( $_POST['send'] ) ) {
 719          $keys    = array_keys( $_POST['send'] );
 720          $send_id = (int) reset( $keys );
 721      }
 722  
 723      if ( ! empty( $_POST['attachments'] ) ) {
 724          foreach ( $_POST['attachments'] as $attachment_id => $attachment ) {
 725              $post  = get_post( $attachment_id, ARRAY_A );
 726              $_post = $post;
 727  
 728              if ( ! current_user_can( 'edit_post', $attachment_id ) ) {
 729                  continue;
 730              }
 731  
 732              if ( isset( $attachment['post_content'] ) ) {
 733                  $post['post_content'] = $attachment['post_content'];
 734              }
 735  
 736              if ( isset( $attachment['post_title'] ) ) {
 737                  $post['post_title'] = $attachment['post_title'];
 738              }
 739  
 740              if ( isset( $attachment['post_excerpt'] ) ) {
 741                  $post['post_excerpt'] = $attachment['post_excerpt'];
 742              }
 743  
 744              if ( isset( $attachment['menu_order'] ) ) {
 745                  $post['menu_order'] = $attachment['menu_order'];
 746              }
 747  
 748              if ( isset( $send_id ) && $attachment_id == $send_id ) {
 749                  if ( isset( $attachment['post_parent'] ) ) {
 750                      $post['post_parent'] = $attachment['post_parent'];
 751                  }
 752              }
 753  
 754              /**
 755               * Filters the attachment fields to be saved.
 756               *
 757               * @since 2.5.0
 758               *
 759               * @see wp_get_attachment_metadata()
 760               *
 761               * @param array $post       An array of post data.
 762               * @param array $attachment An array of attachment metadata.
 763               */
 764              $post = apply_filters( 'attachment_fields_to_save', $post, $attachment );
 765  
 766              if ( isset( $attachment['image_alt'] ) ) {
 767                  $image_alt = wp_unslash( $attachment['image_alt'] );
 768  
 769                  if ( get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) !== $image_alt ) {
 770                      $image_alt = wp_strip_all_tags( $image_alt, true );
 771  
 772                      // update_post_meta() expects slashed.
 773                      update_post_meta( $attachment_id, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
 774                  }
 775              }
 776  
 777              if ( isset( $post['errors'] ) ) {
 778                  $errors[ $attachment_id ] = $post['errors'];
 779                  unset( $post['errors'] );
 780              }
 781  
 782              if ( $post != $_post ) {
 783                  wp_update_post( $post );
 784              }
 785  
 786              foreach ( get_attachment_taxonomies( $post ) as $t ) {
 787                  if ( isset( $attachment[ $t ] ) ) {
 788                      wp_set_object_terms( $attachment_id, array_map( 'trim', preg_split( '/,+/', $attachment[ $t ] ) ), $t, false );
 789                  }
 790              }
 791          }
 792      }
 793  
 794      if ( isset( $_POST['insert-gallery'] ) || isset( $_POST['update-gallery'] ) ) {
 795          ?>
 796          <script type="text/javascript">
 797          var win = window.dialogArguments || opener || parent || top;
 798          win.tb_remove();
 799          </script>
 800          <?php
 801  
 802          exit;
 803      }
 804  
 805      if ( isset( $send_id ) ) {
 806          $attachment = wp_unslash( $_POST['attachments'][ $send_id ] );
 807          $html       = isset( $attachment['post_title'] ) ? $attachment['post_title'] : '';
 808  
 809          if ( ! empty( $attachment['url'] ) ) {
 810              $rel = '';
 811  
 812              if ( strpos( $attachment['url'], 'attachment_id' ) || get_attachment_link( $send_id ) == $attachment['url'] ) {
 813                  $rel = " rel='attachment wp-att-" . esc_attr( $send_id ) . "'";
 814              }
 815  
 816              $html = "<a href='{$attachment['url']}'$rel>$html</a>";
 817          }
 818  
 819          /**
 820           * Filters the HTML markup for a media item sent to the editor.
 821           *
 822           * @since 2.5.0
 823           *
 824           * @see wp_get_attachment_metadata()
 825           *
 826           * @param string $html       HTML markup for a media item sent to the editor.
 827           * @param int    $send_id    The first key from the $_POST['send'] data.
 828           * @param array  $attachment Array of attachment metadata.
 829           */
 830          $html = apply_filters( 'media_send_to_editor', $html, $send_id, $attachment );
 831  
 832          return media_send_to_editor( $html );
 833      }
 834  
 835      return $errors;
 836  }
 837  
 838  /**
 839   * Handles the process of uploading media.
 840   *
 841   * @since 2.5.0
 842   *
 843   * @return null|string
 844   */
 845  function wp_media_upload_handler() {
 846      $errors = array();
 847      $id     = 0;
 848  
 849      if ( isset( $_POST['html-upload'] ) && ! empty( $_FILES ) ) {
 850          check_admin_referer( 'media-form' );
 851          // Upload File button was clicked.
 852          $id = media_handle_upload( 'async-upload', $_REQUEST['post_id'] );
 853          unset( $_FILES );
 854  
 855          if ( is_wp_error( $id ) ) {
 856              $errors['upload_error'] = $id;
 857              $id                     = false;
 858          }
 859      }
 860  
 861      if ( ! empty( $_POST['insertonlybutton'] ) ) {
 862          $src = $_POST['src'];
 863  
 864          if ( ! empty( $src ) && ! strpos( $src, '://' ) ) {
 865              $src = "http://$src";
 866          }
 867  
 868          if ( isset( $_POST['media_type'] ) && 'image' !== $_POST['media_type'] ) {
 869              $title = esc_html( wp_unslash( $_POST['title'] ) );
 870              if ( empty( $title ) ) {
 871                  $title = esc_html( wp_basename( $src ) );
 872              }
 873  
 874              if ( $title && $src ) {
 875                  $html = "<a href='" . esc_url( $src ) . "'>$title</a>";
 876              }
 877  
 878              $type = 'file';
 879              $ext  = preg_replace( '/^.+?\.([^.]+)$/', '$1', $src );
 880  
 881              if ( $ext ) {
 882                  $ext_type = wp_ext2type( $ext );
 883                  if ( 'audio' === $ext_type || 'video' === $ext_type ) {
 884                      $type = $ext_type;
 885                  }
 886              }
 887  
 888              /**
 889               * Filters the URL sent to the editor for a specific media type.
 890               *
 891               * The dynamic portion of the hook name, `$type`, refers to the type
 892               * of media being sent.
 893               *
 894               * @since 3.3.0
 895               *
 896               * @param string $html  HTML markup sent to the editor.
 897               * @param string $src   Media source URL.
 898               * @param string $title Media title.
 899               */
 900              $html = apply_filters( "{$type}_send_to_editor_url", $html, esc_url_raw( $src ), $title );
 901          } else {
 902              $align = '';
 903              $alt   = esc_attr( wp_unslash( $_POST['alt'] ) );
 904  
 905              if ( isset( $_POST['align'] ) ) {
 906                  $align = esc_attr( wp_unslash( $_POST['align'] ) );
 907                  $class = " class='align$align'";
 908              }
 909  
 910              if ( ! empty( $src ) ) {
 911                  $html = "<img src='" . esc_url( $src ) . "' alt='$alt'$class />";
 912              }
 913  
 914              /**
 915               * Filters the image URL sent to the editor.
 916               *
 917               * @since 2.8.0
 918               *
 919               * @param string $html  HTML markup sent to the editor for an image.
 920               * @param string $src   Image source URL.
 921               * @param string $alt   Image alternate, or alt, text.
 922               * @param string $align The image alignment. Default 'alignnone'. Possible values include
 923               *                      'alignleft', 'aligncenter', 'alignright', 'alignnone'.
 924               */
 925              $html = apply_filters( 'image_send_to_editor_url', $html, esc_url_raw( $src ), $alt, $align );
 926          }
 927  
 928          return media_send_to_editor( $html );
 929      }
 930  
 931      if ( isset( $_POST['save'] ) ) {
 932          $errors['upload_notice'] = __( 'Saved.' );
 933          wp_enqueue_script( 'admin-gallery' );
 934  
 935          return wp_iframe( 'media_upload_gallery_form', $errors );
 936  
 937      } elseif ( ! empty( $_POST ) ) {
 938          $return = media_upload_form_handler();
 939  
 940          if ( is_string( $return ) ) {
 941              return $return;
 942          }
 943  
 944          if ( is_array( $return ) ) {
 945              $errors = $return;
 946          }
 947      }
 948  
 949      if ( isset( $_GET['tab'] ) && 'type_url' === $_GET['tab'] ) {
 950          $type = 'image';
 951  
 952          if ( isset( $_GET['type'] ) && in_array( $_GET['type'], array( 'video', 'audio', 'file' ), true ) ) {
 953              $type = $_GET['type'];
 954          }
 955  
 956          return wp_iframe( 'media_upload_type_url_form', $type, $errors, $id );
 957      }
 958  
 959      return wp_iframe( 'media_upload_type_form', 'image', $errors, $id );
 960  }
 961  
 962  /**
 963   * Downloads an image from the specified URL, saves it as an attachment, and optionally attaches it to a post.
 964   *
 965   * @since 2.6.0
 966   * @since 4.2.0 Introduced the `$return` parameter.
 967   * @since 4.8.0 Introduced the 'id' option for the `$return` parameter.
 968   * @since 5.3.0 The `$post_id` parameter was made optional.
 969   * @since 5.4.0 The original URL of the attachment is stored in the `_source_url`
 970   *              post meta value.
 971   *
 972   * @param string $file    The URL of the image to download.
 973   * @param int    $post_id Optional. The post ID the media is to be associated with.
 974   * @param string $desc    Optional. Description of the image.
 975   * @param string $return  Optional. Accepts 'html' (image tag html) or 'src' (URL),
 976   *                        or 'id' (attachment ID). Default 'html'.
 977   * @return string|int|WP_Error Populated HTML img tag, attachment ID, or attachment source
 978   *                             on success, WP_Error object otherwise.
 979   */
 980  function media_sideload_image( $file, $post_id = 0, $desc = null, $return = 'html' ) {
 981      if ( ! empty( $file ) ) {
 982  
 983          $allowed_extensions = array( 'jpg', 'jpeg', 'jpe', 'png', 'gif' );
 984  
 985          /**
 986           * Filters the list of allowed file extensions when sideloading an image from a URL.
 987           *
 988           * The default allowed extensions are:
 989           *
 990           *  - `jpg`
 991           *  - `jpeg`
 992           *  - `jpe`
 993           *  - `png`
 994           *  - `gif`
 995           *
 996           * @since 5.6.0
 997           *
 998           * @param string[] $allowed_extensions Array of allowed file extensions.
 999           * @param string   $file               The URL of the image to download.
1000           */
1001          $allowed_extensions = apply_filters( 'image_sideload_extensions', $allowed_extensions, $file );
1002          $allowed_extensions = array_map( 'preg_quote', $allowed_extensions );
1003  
1004          // Set variables for storage, fix file filename for query strings.
1005          preg_match( '/[^\?]+\.(' . implode( '|', $allowed_extensions ) . ')\b/i', $file, $matches );
1006  
1007          if ( ! $matches ) {
1008              return new WP_Error( 'image_sideload_failed', __( 'Invalid image URL.' ) );
1009          }
1010  
1011          $file_array         = array();
1012          $file_array['name'] = wp_basename( $matches[0] );
1013  
1014          // Download file to temp location.
1015          $file_array['tmp_name'] = download_url( $file );
1016  
1017          // If error storing temporarily, return the error.
1018          if ( is_wp_error( $file_array['tmp_name'] ) ) {
1019              return $file_array['tmp_name'];
1020          }
1021  
1022          // Do the validation and storage stuff.
1023          $id = media_handle_sideload( $file_array, $post_id, $desc );
1024  
1025          // If error storing permanently, unlink.
1026          if ( is_wp_error( $id ) ) {
1027              @unlink( $file_array['tmp_name'] );
1028              return $id;
1029          }
1030  
1031          // Store the original attachment source in meta.
1032          add_post_meta( $id, '_source_url', $file );
1033  
1034          // If attachment ID was requested, return it.
1035          if ( 'id' === $return ) {
1036              return $id;
1037          }
1038  
1039          $src = wp_get_attachment_url( $id );
1040      }
1041  
1042      // Finally, check to make sure the file has been saved, then return the HTML.
1043      if ( ! empty( $src ) ) {
1044          if ( 'src' === $return ) {
1045              return $src;
1046          }
1047  
1048          $alt  = isset( $desc ) ? esc_attr( $desc ) : '';
1049          $html = "<img src='$src' alt='$alt' />";
1050  
1051          return $html;
1052      } else {
1053          return new WP_Error( 'image_sideload_failed' );
1054      }
1055  }
1056  
1057  /**
1058   * Retrieves the legacy media uploader form in an iframe.
1059   *
1060   * @since 2.5.0
1061   *
1062   * @return string|null
1063   */
1064  function media_upload_gallery() {
1065      $errors = array();
1066  
1067      if ( ! empty( $_POST ) ) {
1068          $return = media_upload_form_handler();
1069  
1070          if ( is_string( $return ) ) {
1071              return $return;
1072          }
1073  
1074          if ( is_array( $return ) ) {
1075              $errors = $return;
1076          }
1077      }
1078  
1079      wp_enqueue_script( 'admin-gallery' );
1080      return wp_iframe( 'media_upload_gallery_form', $errors );
1081  }
1082  
1083  /**
1084   * Retrieves the legacy media library form in an iframe.
1085   *
1086   * @since 2.5.0
1087   *
1088   * @return string|null
1089   */
1090  function media_upload_library() {
1091      $errors = array();
1092  
1093      if ( ! empty( $_POST ) ) {
1094          $return = media_upload_form_handler();
1095  
1096          if ( is_string( $return ) ) {
1097              return $return;
1098          }
1099          if ( is_array( $return ) ) {
1100              $errors = $return;
1101          }
1102      }
1103  
1104      return wp_iframe( 'media_upload_library_form', $errors );
1105  }
1106  
1107  /**
1108   * Retrieve HTML for the image alignment radio buttons with the specified one checked.
1109   *
1110   * @since 2.7.0
1111   *
1112   * @param WP_Post $post
1113   * @param string  $checked
1114   * @return string
1115   */
1116  function image_align_input_fields( $post, $checked = '' ) {
1117  
1118      if ( empty( $checked ) ) {
1119          $checked = get_user_setting( 'align', 'none' );
1120      }
1121  
1122      $alignments = array(
1123          'none'   => __( 'None' ),
1124          'left'   => __( 'Left' ),
1125          'center' => __( 'Center' ),
1126          'right'  => __( 'Right' ),
1127      );
1128  
1129      if ( ! array_key_exists( (string) $checked, $alignments ) ) {
1130          $checked = 'none';
1131      }
1132  
1133      $out = array();
1134  
1135      foreach ( $alignments as $name => $label ) {
1136          $name  = esc_attr( $name );
1137          $out[] = "<input type='radio' name='attachments[{$post->ID}][align]' id='image-align-{$name}-{$post->ID}' value='$name'" .
1138              ( $checked == $name ? " checked='checked'" : '' ) .
1139              " /><label for='image-align-{$name}-{$post->ID}' class='align image-align-{$name}-label'>$label</label>";
1140      }
1141  
1142      return implode( "\n", $out );
1143  }
1144  
1145  /**
1146   * Retrieve HTML for the size radio buttons with the specified one checked.
1147   *
1148   * @since 2.7.0
1149   *
1150   * @param WP_Post     $post
1151   * @param bool|string $check
1152   * @return array
1153   */
1154  function image_size_input_fields( $post, $check = '' ) {
1155      /**
1156       * Filters the names and labels of the default image sizes.
1157       *
1158       * @since 3.3.0
1159       *
1160       * @param string[] $size_names Array of image size labels keyed by their name. Default values
1161       *                             include 'Thumbnail', 'Medium', 'Large', and 'Full Size'.
1162       */
1163      $size_names = apply_filters(
1164          'image_size_names_choose',
1165          array(
1166              'thumbnail' => __( 'Thumbnail' ),
1167              'medium'    => __( 'Medium' ),
1168              'large'     => __( 'Large' ),
1169              'full'      => __( 'Full Size' ),
1170          )
1171      );
1172  
1173      if ( empty( $check ) ) {
1174          $check = get_user_setting( 'imgsize', 'medium' );
1175      }
1176  
1177      $out = array();
1178  
1179      foreach ( $size_names as $size => $label ) {
1180          $downsize = image_downsize( $post->ID, $size );
1181          $checked  = '';
1182  
1183          // Is this size selectable?
1184          $enabled = ( $downsize[3] || 'full' === $size );
1185          $css_id  = "image-size-{$size}-{$post->ID}";
1186  
1187          // If this size is the default but that's not available, don't select it.
1188          if ( $size == $check ) {
1189              if ( $enabled ) {
1190                  $checked = " checked='checked'";
1191              } else {
1192                  $check = '';
1193              }
1194          } elseif ( ! $check && $enabled && 'thumbnail' !== $size ) {
1195              /*
1196               * If $check is not enabled, default to the first available size
1197               * that's bigger than a thumbnail.
1198               */
1199              $check   = $size;
1200              $checked = " checked='checked'";
1201          }
1202  
1203          $html = "<div class='image-size-item'><input type='radio' " . disabled( $enabled, false, false ) . "name='attachments[$post->ID][image-size]' id='{$css_id}' value='{$size}'$checked />";
1204  
1205          $html .= "<label for='{$css_id}'>$label</label>";
1206  
1207          // Only show the dimensions if that choice is available.
1208          if ( $enabled ) {
1209              $html .= " <label for='{$css_id}' class='help'>" . sprintf( '(%d&nbsp;&times;&nbsp;%d)', $downsize[1], $downsize[2] ) . '</label>';
1210          }
1211          $html .= '</div>';
1212  
1213          $out[] = $html;
1214      }
1215  
1216      return array(
1217          'label' => __( 'Size' ),
1218          'input' => 'html',
1219          'html'  => implode( "\n", $out ),
1220      );
1221  }
1222  
1223  /**
1224   * Retrieve HTML for the Link URL buttons with the default link type as specified.
1225   *
1226   * @since 2.7.0
1227   *
1228   * @param WP_Post $post
1229   * @param string  $url_type
1230   * @return string
1231   */
1232  function image_link_input_fields( $post, $url_type = '' ) {
1233  
1234      $file = wp_get_attachment_url( $post->ID );
1235      $link = get_attachment_link( $post->ID );
1236  
1237      if ( empty( $url_type ) ) {
1238          $url_type = get_user_setting( 'urlbutton', 'post' );
1239      }
1240  
1241      $url = '';
1242  
1243      if ( 'file' === $url_type ) {
1244          $url = $file;
1245      } elseif ( 'post' === $url_type ) {
1246          $url = $link;
1247      }
1248  
1249      return "
1250      <input type='text' class='text urlfield' name='attachments[$post->ID][url]' value='" . esc_attr( $url ) . "' /><br />
1251      <button type='button' class='button urlnone' data-link-url=''>" . __( 'None' ) . "</button>
1252      <button type='button' class='button urlfile' data-link-url='" . esc_attr( $file ) . "'>" . __( 'File URL' ) . "</button>
1253      <button type='button' class='button urlpost' data-link-url='" . esc_attr( $link ) . "'>" . __( 'Attachment Post URL' ) . '</button>
1254  ';
1255  }
1256  
1257  /**
1258   * Output a textarea element for inputting an attachment caption.
1259   *
1260   * @since 3.4.0
1261   *
1262   * @param WP_Post $edit_post Attachment WP_Post object.
1263   * @return string HTML markup for the textarea element.
1264   */
1265  function wp_caption_input_textarea( $edit_post ) {
1266      // Post data is already escaped.
1267      $name = "attachments[{$edit_post->ID}][post_excerpt]";
1268  
1269      return '<textarea name="' . $name . '" id="' . $name . '">' . $edit_post->post_excerpt . '</textarea>';
1270  }
1271  
1272  /**
1273   * Retrieves the image attachment fields to edit form fields.
1274   *
1275   * @since 2.5.0
1276   *
1277   * @param array  $form_fields
1278   * @param object $post
1279   * @return array
1280   */
1281  function image_attachment_fields_to_edit( $form_fields, $post ) {
1282      return $form_fields;
1283  }
1284  
1285  /**
1286   * Retrieves the single non-image attachment fields to edit form fields.
1287   *
1288   * @since 2.5.0
1289   *
1290   * @param array   $form_fields An array of attachment form fields.
1291   * @param WP_Post $post        The WP_Post attachment object.
1292   * @return array Filtered attachment form fields.
1293   */
1294  function media_single_attachment_fields_to_edit( $form_fields, $post ) {
1295      unset( $form_fields['url'], $form_fields['align'], $form_fields['image-size'] );
1296      return $form_fields;
1297  }
1298  
1299  /**
1300   * Retrieves the post non-image attachment fields to edit form fields.
1301   *
1302   * @since 2.8.0
1303   *
1304   * @param array   $form_fields An array of attachment form fields.
1305   * @param WP_Post $post        The WP_Post attachment object.
1306   * @return array Filtered attachment form fields.
1307   */
1308  function media_post_single_attachment_fields_to_edit( $form_fields, $post ) {
1309      unset( $form_fields['image_url'] );
1310      return $form_fields;
1311  }
1312  
1313  /**
1314   * Filters input from media_upload_form_handler() and assigns a default
1315   * post_title from the file name if none supplied.
1316   *
1317   * Illustrates the use of the {@see 'attachment_fields_to_save'} filter
1318   * which can be used to add default values to any field before saving to DB.
1319   *
1320   * @since 2.5.0
1321   *
1322   * @param array $post       The WP_Post attachment object converted to an array.
1323   * @param array $attachment An array of attachment metadata.
1324   * @return array Filtered attachment post object.
1325   */
1326  function image_attachment_fields_to_save( $post, $attachment ) {
1327      if ( 'image' === substr( $post['post_mime_type'], 0, 5 ) ) {
1328          if ( strlen( trim( $post['post_title'] ) ) == 0 ) {
1329              $attachment_url                           = ( isset( $post['attachment_url'] ) ) ? $post['attachment_url'] : $post['guid'];
1330              $post['post_title']                       = preg_replace( '/\.\w+$/', '', wp_basename( $attachment_url ) );
1331              $post['errors']['post_title']['errors'][] = __( 'Empty Title filled from filename.' );
1332          }
1333      }
1334  
1335      return $post;
1336  }
1337  
1338  /**
1339   * Retrieves the media element HTML to send to the editor.
1340   *
1341   * @since 2.5.0
1342   *
1343   * @param string  $html
1344   * @param int     $attachment_id
1345   * @param array   $attachment
1346   * @return string
1347   */
1348  function image_media_send_to_editor( $html, $attachment_id, $attachment ) {
1349      $post = get_post( $attachment_id );
1350  
1351      if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) {
1352          $url   = $attachment['url'];
1353          $align = ! empty( $attachment['align'] ) ? $attachment['align'] : 'none';
1354          $size  = ! empty( $attachment['image-size'] ) ? $attachment['image-size'] : 'medium';
1355          $alt   = ! empty( $attachment['image_alt'] ) ? $attachment['image_alt'] : '';
1356          $rel   = ( strpos( $url, 'attachment_id' ) || get_attachment_link( $attachment_id ) === $url );
1357  
1358          return get_image_send_to_editor( $attachment_id, $attachment['post_excerpt'], $attachment['post_title'], $align, $url, $rel, $size, $alt );
1359      }
1360  
1361      return $html;
1362  }
1363  
1364  /**
1365   * Retrieves the attachment fields to edit form fields.
1366   *
1367   * @since 2.5.0
1368   *
1369   * @param WP_Post $post
1370   * @param array   $errors
1371   * @return array
1372   */
1373  function get_attachment_fields_to_edit( $post, $errors = null ) {
1374      if ( is_int( $post ) ) {
1375          $post = get_post( $post );
1376      }
1377  
1378      if ( is_array( $post ) ) {
1379          $post = new WP_Post( (object) $post );
1380      }
1381  
1382      $image_url = wp_get_attachment_url( $post->ID );
1383  
1384      $edit_post = sanitize_post( $post, 'edit' );
1385  
1386      $form_fields = array(
1387          'post_title'   => array(
1388              'label' => __( 'Title' ),
1389              'value' => $edit_post->post_title,
1390          ),
1391          'image_alt'    => array(),
1392          'post_excerpt' => array(
1393              'label' => __( 'Caption' ),
1394              'input' => 'html',
1395              'html'  => wp_caption_input_textarea( $edit_post ),
1396          ),
1397          'post_content' => array(
1398              'label' => __( 'Description' ),
1399              'value' => $edit_post->post_content,
1400              'input' => 'textarea',
1401          ),
1402          'url'          => array(
1403              'label' => __( 'Link URL' ),
1404              'input' => 'html',
1405              'html'  => image_link_input_fields( $post, get_option( 'image_default_link_type' ) ),
1406              'helps' => __( 'Enter a link URL or click above for presets.' ),
1407          ),
1408          'menu_order'   => array(
1409              'label' => __( 'Order' ),
1410              'value' => $edit_post->menu_order,
1411          ),
1412          'image_url'    => array(
1413              'label' => __( 'File URL' ),
1414              'input' => 'html',
1415              'html'  => "<input type='text' class='text urlfield' readonly='readonly' name='attachments[$post->ID][url]' value='" . esc_attr( $image_url ) . "' /><br />",
1416              'value' => wp_get_attachment_url( $post->ID ),
1417              'helps' => __( 'Location of the uploaded file.' ),
1418          ),
1419      );
1420  
1421      foreach ( get_attachment_taxonomies( $post ) as $taxonomy ) {
1422          $t = (array) get_taxonomy( $taxonomy );
1423  
1424          if ( ! $t['public'] || ! $t['show_ui'] ) {
1425              continue;
1426          }
1427  
1428          if ( empty( $t['label'] ) ) {
1429              $t['label'] = $taxonomy;
1430          }
1431  
1432          if ( empty( $t['args'] ) ) {
1433              $t['args'] = array();
1434          }
1435  
1436          $terms = get_object_term_cache( $post->ID, $taxonomy );
1437  
1438          if ( false === $terms ) {
1439              $terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
1440          }
1441  
1442          $values = array();
1443  
1444          foreach ( $terms as $term ) {
1445              $values[] = $term->slug;
1446          }
1447  
1448          $t['value'] = implode( ', ', $values );
1449  
1450          $form_fields[ $taxonomy ] = $t;
1451      }
1452  
1453      /*
1454       * Merge default fields with their errors, so any key passed with the error
1455       * (e.g. 'error', 'helps', 'value') will replace the default.
1456       * The recursive merge is easily traversed with array casting:
1457       * foreach ( (array) $things as $thing )
1458       */
1459      $form_fields = array_merge_recursive( $form_fields, (array) $errors );
1460  
1461      // This was formerly in image_attachment_fields_to_edit().
1462      if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) {
1463          $alt = get_post_meta( $post->ID, '_wp_attachment_image_alt', true );
1464  
1465          if ( empty( $alt ) ) {
1466              $alt = '';
1467          }
1468  
1469          $form_fields['post_title']['required'] = true;
1470  
1471          $form_fields['image_alt'] = array(
1472              'value' => $alt,
1473              'label' => __( 'Alternative Text' ),
1474              'helps' => __( 'Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;' ),
1475          );
1476  
1477          $form_fields['align'] = array(
1478              'label' => __( 'Alignment' ),
1479              'input' => 'html',
1480              'html'  => image_align_input_fields( $post, get_option( 'image_default_align' ) ),
1481          );
1482  
1483          $form_fields['image-size'] = image_size_input_fields( $post, get_option( 'image_default_size', 'medium' ) );
1484  
1485      } else {
1486          unset( $form_fields['image_alt'] );
1487      }
1488  
1489      /**
1490       * Filters the attachment fields to edit.
1491       *
1492       * @since 2.5.0
1493       *
1494       * @param array   $form_fields An array of attachment form fields.
1495       * @param WP_Post $post        The WP_Post attachment object.
1496       */
1497      $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post );
1498  
1499      return $form_fields;
1500  }
1501  
1502  /**
1503   * Retrieve HTML for media items of post gallery.
1504   *
1505   * The HTML markup retrieved will be created for the progress of SWF Upload
1506   * component. Will also create link for showing and hiding the form to modify
1507   * the image attachment.
1508   *
1509   * @since 2.5.0
1510   *
1511   * @global WP_Query $wp_the_query WordPress Query object.
1512   *
1513   * @param int   $post_id Optional. Post ID.
1514   * @param array $errors  Errors for attachment, if any.
1515   * @return string
1516   */
1517  function get_media_items( $post_id, $errors ) {
1518      $attachments = array();
1519  
1520      if ( $post_id ) {
1521          $post = get_post( $post_id );
1522  
1523          if ( $post && 'attachment' === $post->post_type ) {
1524              $attachments = array( $post->ID => $post );
1525          } else {
1526              $attachments = get_children(
1527                  array(
1528                      'post_parent' => $post_id,
1529                      'post_type'   => 'attachment',
1530                      'orderby'     => 'menu_order ASC, ID',
1531                      'order'       => 'DESC',
1532                  )
1533              );
1534          }
1535      } else {
1536          if ( is_array( $GLOBALS['wp_the_query']->posts ) ) {
1537              foreach ( $GLOBALS['wp_the_query']->posts as $attachment ) {
1538                  $attachments[ $attachment->ID ] = $attachment;
1539              }
1540          }
1541      }
1542  
1543      $output = '';
1544      foreach ( (array) $attachments as $id => $attachment ) {
1545          if ( 'trash' === $attachment->post_status ) {
1546              continue;
1547          }
1548  
1549          $item = get_media_item( $id, array( 'errors' => isset( $errors[ $id ] ) ? $errors[ $id ] : null ) );
1550  
1551          if ( $item ) {
1552              $output .= "\n<div id='media-item-$id' class='media-item child-of-$attachment->post_parent preloaded'><div class='progress hidden'><div class='bar'></div></div><div id='media-upload-error-$id' class='hidden'></div><div class='filename hidden'></div>$item\n</div>";
1553          }
1554      }
1555  
1556      return $output;
1557  }
1558  
1559  /**
1560   * Retrieve HTML form for modifying the image attachment.
1561   *
1562   * @since 2.5.0
1563   *
1564   * @global string $redir_tab
1565   *
1566   * @param int          $attachment_id Attachment ID for modification.
1567   * @param string|array $args          Optional. Override defaults.
1568   * @return string HTML form for attachment.
1569   */
1570  function get_media_item( $attachment_id, $args = null ) {
1571      global $redir_tab;
1572  
1573      $thumb_url     = false;
1574      $attachment_id = (int) $attachment_id;
1575  
1576      if ( $attachment_id ) {
1577          $thumb_url = wp_get_attachment_image_src( $attachment_id, 'thumbnail', true );
1578  
1579          if ( $thumb_url ) {
1580              $thumb_url = $thumb_url[0];
1581          }
1582      }
1583  
1584      $post            = get_post( $attachment_id );
1585      $current_post_id = ! empty( $_GET['post_id'] ) ? (int) $_GET['post_id'] : 0;
1586  
1587      $default_args = array(
1588          'errors'     => null,
1589          'send'       => $current_post_id ? post_type_supports( get_post_type( $current_post_id ), 'editor' ) : true,
1590          'delete'     => true,
1591          'toggle'     => true,
1592          'show_title' => true,
1593      );
1594  
1595      $parsed_args = wp_parse_args( $args, $default_args );
1596  
1597      /**
1598       * Filters the arguments used to retrieve an image for the edit image form.
1599       *
1600       * @since 3.1.0
1601       *
1602       * @see get_media_item
1603       *
1604       * @param array $parsed_args An array of arguments.
1605       */
1606      $parsed_args = apply_filters( 'get_media_item_args', $parsed_args );
1607  
1608      $toggle_on  = __( 'Show' );
1609      $toggle_off = __( 'Hide' );
1610  
1611      $file     = get_attached_file( $post->ID );
1612      $filename = esc_html( wp_basename( $file ) );
1613      $title    = esc_attr( $post->post_title );
1614  
1615      $post_mime_types = get_post_mime_types();
1616      $keys            = array_keys( wp_match_mime_types( array_keys( $post_mime_types ), $post->post_mime_type ) );
1617      $type            = reset( $keys );
1618      $type_html       = "<input type='hidden' id='type-of-$attachment_id' value='" . esc_attr( $type ) . "' />";
1619  
1620      $form_fields = get_attachment_fields_to_edit( $post, $parsed_args['errors'] );
1621  
1622      if ( $parsed_args['toggle'] ) {
1623          $class        = empty( $parsed_args['errors'] ) ? 'startclosed' : 'startopen';
1624          $toggle_links = "
1625          <a class='toggle describe-toggle-on' href='#'>$toggle_on</a>
1626          <a class='toggle describe-toggle-off' href='#'>$toggle_off</a>";
1627      } else {
1628          $class        = '';
1629          $toggle_links = '';
1630      }
1631  
1632      $display_title = ( ! empty( $title ) ) ? $title : $filename; // $title shouldn't ever be empty, but just in case.
1633      $display_title = $parsed_args['show_title'] ? "<div class='filename new'><span class='title'>" . wp_html_excerpt( $display_title, 60, '&hellip;' ) . '</span></div>' : '';
1634  
1635      $gallery = ( ( isset( $_REQUEST['tab'] ) && 'gallery' === $_REQUEST['tab'] ) || ( isset( $redir_tab ) && 'gallery' === $redir_tab ) );
1636      $order   = '';
1637  
1638      foreach ( $form_fields as $key => $val ) {
1639          if ( 'menu_order' === $key ) {
1640              if ( $gallery ) {
1641                  $order = "<div class='menu_order'> <input class='menu_order_input' type='text' id='attachments[$attachment_id][menu_order]' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ) . "' /></div>";
1642              } else {
1643                  $order = "<input type='hidden' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ) . "' />";
1644              }
1645  
1646              unset( $form_fields['menu_order'] );
1647              break;
1648          }
1649      }
1650  
1651      $media_dims = '';
1652      $meta       = wp_get_attachment_metadata( $post->ID );
1653  
1654      if ( isset( $meta['width'], $meta['height'] ) ) {
1655          $media_dims .= "<span id='media-dims-$post->ID'>{$meta['width']}&nbsp;&times;&nbsp;{$meta['height']}</span> ";
1656      }
1657  
1658      /**
1659       * Filters the media metadata.
1660       *
1661       * @since 2.5.0
1662       *
1663       * @param string  $media_dims The HTML markup containing the media dimensions.
1664       * @param WP_Post $post       The WP_Post attachment object.
1665       */
1666      $media_dims = apply_filters( 'media_meta', $media_dims, $post );
1667  
1668      $image_edit_button = '';
1669  
1670      if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) {
1671          $nonce             = wp_create_nonce( "image_editor-$post->ID" );
1672          $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>";
1673      }
1674  
1675      $attachment_url = get_permalink( $attachment_id );
1676  
1677      $item = "
1678          $type_html
1679          $toggle_links
1680          $order
1681          $display_title
1682          <table class='slidetoggle describe $class'>
1683              <thead class='media-item-info' id='media-head-$post->ID'>
1684              <tr>
1685              <td class='A1B1' id='thumbnail-head-$post->ID'>
1686              <p><a href='$attachment_url' target='_blank'><img class='thumbnail' src='$thumb_url' alt='' /></a></p>
1687              <p>$image_edit_button</p>
1688              </td>
1689              <td>
1690              <p><strong>" . __( 'File name:' ) . "</strong> $filename</p>
1691              <p><strong>" . __( 'File type:' ) . "</strong> $post->post_mime_type</p>
1692              <p><strong>" . __( 'Upload date:' ) . '</strong> ' . mysql2date( __( 'F j, Y' ), $post->post_date ) . '</p>';
1693  
1694      if ( ! empty( $media_dims ) ) {
1695          $item .= '<p><strong>' . __( 'Dimensions:' ) . "</strong> $media_dims</p>\n";
1696      }
1697  
1698      $item .= "</td></tr>\n";
1699  
1700      $item .= "
1701          </thead>
1702          <tbody>
1703          <tr><td colspan='2' class='imgedit-response' id='imgedit-response-$post->ID'></td></tr>\n
1704          <tr><td style='display:none' colspan='2' class='image-editor' id='image-editor-$post->ID'></td></tr>\n
1705          <tr><td colspan='2'><p class='media-types media-types-required-info'>" .
1706              /* translators: %s: Asterisk symbol (*). */
1707              sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
1708          "</p></td></tr>\n";
1709  
1710      $defaults = array(
1711          'input'      => 'text',
1712          'required'   => false,
1713          'value'      => '',
1714          'extra_rows' => array(),
1715      );
1716  
1717      if ( $parsed_args['send'] ) {
1718          $parsed_args['send'] = get_submit_button( __( 'Insert into Post' ), '', "send[$attachment_id]", false );
1719      }
1720  
1721      $delete = empty( $parsed_args['delete'] ) ? '' : $parsed_args['delete'];
1722      if ( $delete && current_user_can( 'delete_post', $attachment_id ) ) {
1723          if ( ! EMPTY_TRASH_DAYS ) {
1724              $delete = "<a href='" . wp_nonce_url( "post.php?action=delete&amp;post=$attachment_id", 'delete-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='delete-permanently'>" . __( 'Delete Permanently' ) . '</a>';
1725          } elseif ( ! MEDIA_TRASH ) {
1726              $delete = "<a href='#' class='del-link' onclick=\"document.getElementById('del_attachment_$attachment_id').style.display='block';return false;\">" . __( 'Delete' ) . "</a>
1727                  <div id='del_attachment_$attachment_id' class='del-attachment' style='display:none;'>" .
1728                  /* translators: %s: File name. */
1729                  '<p>' . sprintf( __( 'You are about to delete %s.' ), '<strong>' . $filename . '</strong>' ) . "</p>
1730                  <a href='" . wp_nonce_url( "post.php?action=delete&amp;post=$attachment_id", 'delete-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='button'>" . __( 'Continue' ) . "</a>
1731                  <a href='#' class='button' onclick=\"this.parentNode.style.display='none';return false;\">" . __( 'Cancel' ) . '</a>
1732                  </div>';
1733          } else {
1734              $delete = "<a href='" . wp_nonce_url( "post.php?action=trash&amp;post=$attachment_id", 'trash-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='delete'>" . __( 'Move to Trash' ) . "</a>
1735              <a href='" . wp_nonce_url( "post.php?action=untrash&amp;post=$attachment_id", 'untrash-post_' . $attachment_id ) . "' id='undo[$attachment_id]' class='undo hidden'>" . __( 'Undo' ) . '</a>';
1736          }
1737      } else {
1738          $delete = '';
1739      }
1740  
1741      $thumbnail       = '';
1742      $calling_post_id = 0;
1743  
1744      if ( isset( $_GET['post_id'] ) ) {
1745          $calling_post_id = absint( $_GET['post_id'] );
1746      } elseif ( isset( $_POST ) && count( $_POST ) ) {// Like for async-upload where $_GET['post_id'] isn't set.
1747          $calling_post_id = $post->post_parent;
1748      }
1749  
1750      if ( 'image' === $type && $calling_post_id
1751          && current_theme_supports( 'post-thumbnails', get_post_type( $calling_post_id ) )
1752          && post_type_supports( get_post_type( $calling_post_id ), 'thumbnail' )
1753          && get_post_thumbnail_id( $calling_post_id ) != $attachment_id
1754      ) {
1755  
1756          $calling_post             = get_post( $calling_post_id );
1757          $calling_post_type_object = get_post_type_object( $calling_post->post_type );
1758  
1759          $ajax_nonce = wp_create_nonce( "set_post_thumbnail-$calling_post_id" );
1760          $thumbnail  = "<a class='wp-post-thumbnail' id='wp-post-thumbnail-" . $attachment_id . "' href='#' onclick='WPSetAsThumbnail(\"$attachment_id\", \"$ajax_nonce\");return false;'>" . esc_html( $calling_post_type_object->labels->use_featured_image ) . '</a>';
1761      }
1762  
1763      if ( ( $parsed_args['send'] || $thumbnail || $delete ) && ! isset( $form_fields['buttons'] ) ) {
1764          $form_fields['buttons'] = array( 'tr' => "\t\t<tr class='submit'><td></td><td class='savesend'>" . $parsed_args['send'] . " $thumbnail $delete</td></tr>\n" );
1765      }
1766  
1767      $hidden_fields = array();
1768  
1769      foreach ( $form_fields as $id => $field ) {
1770          if ( '_' === $id[0] ) {
1771              continue;
1772          }
1773  
1774          if ( ! empty( $field['tr'] ) ) {
1775              $item .= $field['tr'];
1776              continue;
1777          }
1778  
1779          $field = array_merge( $defaults, $field );
1780          $name  = "attachments[$attachment_id][$id]";
1781  
1782          if ( 'hidden' === $field['input'] ) {
1783              $hidden_fields[ $name ] = $field['value'];
1784              continue;
1785          }
1786  
1787          $required      = $field['required'] ? '<span class="required">*</span>' : '';
1788          $required_attr = $field['required'] ? ' required' : '';
1789          $class         = $id;
1790          $class        .= $field['required'] ? ' form-required' : '';
1791  
1792          $item .= "\t\t<tr class='$class'>\n\t\t\t<th scope='row' class='label'><label for='$name'><span class='alignleft'>{$field['label']}{$required}</span><br class='clear' /></label></th>\n\t\t\t<td class='field'>";
1793  
1794          if ( ! empty( $field[ $field['input'] ] ) ) {
1795              $item .= $field[ $field['input'] ];
1796          } elseif ( 'textarea' === $field['input'] ) {
1797              if ( 'post_content' === $id && user_can_richedit() ) {
1798                  // Sanitize_post() skips the post_content when user_can_richedit.
1799                  $field['value'] = htmlspecialchars( $field['value'], ENT_QUOTES );
1800              }
1801              // Post_excerpt is already escaped by sanitize_post() in get_attachment_fields_to_edit().
1802              $item .= "<textarea id='$name' name='$name'{$required_attr}>" . $field['value'] . '</textarea>';
1803          } else {
1804              $item .= "<input type='text' class='text' id='$name' name='$name' value='" . esc_attr( $field['value'] ) . "'{$required_attr} />";
1805          }
1806  
1807          if ( ! empty( $field['helps'] ) ) {
1808              $item .= "<p class='help'>" . implode( "</p>\n<p class='help'>", array_unique( (array) $field['helps'] ) ) . '</p>';
1809          }
1810          $item .= "</td>\n\t\t</tr>\n";
1811  
1812          $extra_rows = array();
1813  
1814          if ( ! empty( $field['errors'] ) ) {
1815              foreach ( array_unique( (array) $field['errors'] ) as $error ) {
1816                  $extra_rows['error'][] = $error;
1817              }
1818          }
1819  
1820          if ( ! empty( $field['extra_rows'] ) ) {
1821              foreach ( $field['extra_rows'] as $class => $rows ) {
1822                  foreach ( (array) $rows as $html ) {
1823                      $extra_rows[ $class ][] = $html;
1824                  }
1825              }
1826          }
1827  
1828          foreach ( $extra_rows as $class => $rows ) {
1829              foreach ( $rows as $html ) {
1830                  $item .= "\t\t<tr><td></td><td class='$class'>$html</td></tr>\n";
1831              }
1832          }
1833      }
1834  
1835      if ( ! empty( $form_fields['_final'] ) ) {
1836          $item .= "\t\t<tr class='final'><td colspan='2'>{$form_fields['_final']}</td></tr>\n";
1837      }
1838  
1839      $item .= "\t</tbody>\n";
1840      $item .= "\t</table>\n";
1841  
1842      foreach ( $hidden_fields as $name => $value ) {
1843          $item .= "\t<input type='hidden' name='$name' id='$name' value='" . esc_attr( $value ) . "' />\n";
1844      }
1845  
1846      if ( $post->post_parent < 1 && isset( $_REQUEST['post_id'] ) ) {
1847          $parent      = (int) $_REQUEST['post_id'];
1848          $parent_name = "attachments[$attachment_id][post_parent]";
1849          $item       .= "\t<input type='hidden' name='$parent_name' id='$parent_name' value='$parent' />\n";
1850      }
1851  
1852      return $item;
1853  }
1854  
1855  /**
1856   * @since 3.5.0
1857   *
1858   * @param int   $attachment_id
1859   * @param array $args
1860   * @return array
1861   */
1862  function get_compat_media_markup( $attachment_id, $args = null ) {
1863      $post = get_post( $attachment_id );
1864  
1865      $default_args = array(
1866          'errors'   => null,
1867          'in_modal' => false,
1868      );
1869  
1870      $user_can_edit = current_user_can( 'edit_post', $attachment_id );
1871  
1872      $args = wp_parse_args( $args, $default_args );
1873  
1874      /** This filter is documented in wp-admin/includes/media.php */
1875      $args = apply_filters( 'get_media_item_args', $args );
1876  
1877      $form_fields = array();
1878  
1879      if ( $args['in_modal'] ) {
1880          foreach ( get_attachment_taxonomies( $post ) as $taxonomy ) {
1881              $t = (array) get_taxonomy( $taxonomy );
1882  
1883              if ( ! $t['public'] || ! $t['show_ui'] ) {
1884                  continue;
1885              }
1886  
1887              if ( empty( $t['label'] ) ) {
1888                  $t['label'] = $taxonomy;
1889              }
1890  
1891              if ( empty( $t['args'] ) ) {
1892                  $t['args'] = array();
1893              }
1894  
1895              $terms = get_object_term_cache( $post->ID, $taxonomy );
1896  
1897              if ( false === $terms ) {
1898                  $terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
1899              }
1900  
1901              $values = array();
1902  
1903              foreach ( $terms as $term ) {
1904                  $values[] = $term->slug;
1905              }
1906  
1907              $t['value']    = implode( ', ', $values );
1908              $t['taxonomy'] = true;
1909  
1910              $form_fields[ $taxonomy ] = $t;
1911          }
1912      }
1913  
1914      /*
1915       * Merge default fields with their errors, so any key passed with the error
1916       * (e.g. 'error', 'helps', 'value') will replace the default.
1917       * The recursive merge is easily traversed with array casting:
1918       * foreach ( (array) $things as $thing )
1919       */
1920      $form_fields = array_merge_recursive( $form_fields, (array) $args['errors'] );
1921  
1922      /** This filter is documented in wp-admin/includes/media.php */
1923      $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post );
1924  
1925      unset(
1926          $form_fields['image-size'],
1927          $form_fields['align'],
1928          $form_fields['image_alt'],
1929          $form_fields['post_title'],
1930          $form_fields['post_excerpt'],
1931          $form_fields['post_content'],
1932          $form_fields['url'],
1933          $form_fields['menu_order'],
1934          $form_fields['image_url']
1935      );
1936  
1937      /** This filter is documented in wp-admin/includes/media.php */
1938      $media_meta = apply_filters( 'media_meta', '', $post );
1939  
1940      $defaults = array(
1941          'input'         => 'text',
1942          'required'      => false,
1943          'value'         => '',
1944          'extra_rows'    => array(),
1945          'show_in_edit'  => true,
1946          'show_in_modal' => true,
1947      );
1948  
1949      $hidden_fields = array();
1950  
1951      $item = '';
1952  
1953      foreach ( $form_fields as $id => $field ) {
1954          if ( '_' === $id[0] ) {
1955              continue;
1956          }
1957  
1958          $name    = "attachments[$attachment_id][$id]";
1959          $id_attr = "attachments-$attachment_id-$id";
1960  
1961          if ( ! empty( $field['tr'] ) ) {
1962              $item .= $field['tr'];
1963              continue;
1964          }
1965  
1966          $field = array_merge( $defaults, $field );
1967  
1968          if ( ( ! $field['show_in_edit'] && ! $args['in_modal'] ) || ( ! $field['show_in_modal'] && $args['in_modal'] ) ) {
1969              continue;
1970          }
1971  
1972          if ( 'hidden' === $field['input'] ) {
1973              $hidden_fields[ $name ] = $field['value'];
1974              continue;
1975          }
1976  
1977          $readonly      = ! $user_can_edit && ! empty( $field['taxonomy'] ) ? " readonly='readonly' " : '';
1978          $required      = $field['required'] ? '<span class="required">*</span>' : '';
1979          $required_attr = $field['required'] ? ' required' : '';
1980          $class         = 'compat-field-' . $id;
1981          $class        .= $field['required'] ? ' form-required' : '';
1982  
1983          $item .= "\t\t<tr class='$class'>";
1984          $item .= "\t\t\t<th scope='row' class='label'><label for='$id_attr'><span class='alignleft'>{$field['label']}</span>$required<br class='clear' /></label>";
1985          $item .= "</th>\n\t\t\t<td class='field'>";
1986  
1987          if ( ! empty( $field[ $field['input'] ] ) ) {
1988              $item .= $field[ $field['input'] ];
1989          } elseif ( 'textarea' === $field['input'] ) {
1990              if ( 'post_content' === $id && user_can_richedit() ) {
1991                  // sanitize_post() skips the post_content when user_can_richedit.
1992                  $field['value'] = htmlspecialchars( $field['value'], ENT_QUOTES );
1993              }
1994              $item .= "<textarea id='$id_attr' name='$name'{$required_attr}>" . $field['value'] . '</textarea>';
1995          } else {
1996              $item .= "<input type='text' class='text' id='$id_attr' name='$name' value='" . esc_attr( $field['value'] ) . "' $readonly{$required_attr} />";
1997          }
1998  
1999          if ( ! empty( $field['helps'] ) ) {
2000              $item .= "<p class='help'>" . implode( "</p>\n<p class='help'>", array_unique( (array) $field['helps'] ) ) . '</p>';
2001          }
2002  
2003          $item .= "</td>\n\t\t</tr>\n";
2004  
2005          $extra_rows = array();
2006  
2007          if ( ! empty( $field['errors'] ) ) {
2008              foreach ( array_unique( (array) $field['errors'] ) as $error ) {
2009                  $extra_rows['error'][] = $error;
2010              }
2011          }
2012  
2013          if ( ! empty( $field['extra_rows'] ) ) {
2014              foreach ( $field['extra_rows'] as $class => $rows ) {
2015                  foreach ( (array) $rows as $html ) {
2016                      $extra_rows[ $class ][] = $html;
2017                  }
2018              }
2019          }
2020  
2021          foreach ( $extra_rows as $class => $rows ) {
2022              foreach ( $rows as $html ) {
2023                  $item .= "\t\t<tr><td></td><td class='$class'>$html</td></tr>\n";
2024              }
2025          }
2026      }
2027  
2028      if ( ! empty( $form_fields['_final'] ) ) {
2029          $item .= "\t\t<tr class='final'><td colspan='2'>{$form_fields['_final']}</td></tr>\n";
2030      }
2031  
2032      if ( $item ) {
2033          $item = '<p class="media-types media-types-required-info">' .
2034              /* translators: %s: Asterisk symbol (*). */
2035              sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
2036              '</p>' .
2037              '<table class="compat-attachment-fields">' . $item . '</table>';
2038      }
2039  
2040      foreach ( $hidden_fields as $hidden_field => $value ) {
2041          $item .= '<input type="hidden" name="' . esc_attr( $hidden_field ) . '" value="' . esc_attr( $value ) . '" />' . "\n";
2042      }
2043  
2044      if ( $item ) {
2045          $item = '<input type="hidden" name="attachments[' . $attachment_id . '][menu_order]" value="' . esc_attr( $post->menu_order ) . '" />' . $item;
2046      }
2047  
2048      return array(
2049          'item' => $item,
2050          'meta' => $media_meta,
2051      );
2052  }
2053  
2054  /**
2055   * Outputs the legacy media upload header.
2056   *
2057   * @since 2.5.0
2058   */
2059  function media_upload_header() {
2060      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2061  
2062      echo '<script type="text/javascript">post_id = ' . $post_id . ';</script>';
2063  
2064      if ( empty( $_GET['chromeless'] ) ) {
2065          echo '<div id="media-upload-header">';
2066          the_media_upload_tabs();
2067          echo '</div>';
2068      }
2069  }
2070  
2071  /**
2072   * Outputs the legacy media upload form.
2073   *
2074   * @since 2.5.0
2075   *
2076   * @global string $type
2077   * @global string $tab
2078   * @global bool   $is_IE
2079   * @global bool   $is_opera
2080   *
2081   * @param array $errors
2082   */
2083  function media_upload_form( $errors = null ) {
2084      global $type, $tab, $is_IE, $is_opera;
2085  
2086      if ( ! _device_can_upload() ) {
2087          echo '<p>' . sprintf(
2088              /* translators: %s: https://apps.wordpress.org/ */
2089              __( 'The web browser on your device cannot be used to upload files. You may be able to use the <a href="%s">native app for your device</a> instead.' ),
2090              'https://apps.wordpress.org/'
2091          ) . '</p>';
2092          return;
2093      }
2094  
2095      $upload_action_url = admin_url( 'async-upload.php' );
2096      $post_id           = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2097      $_type             = isset( $type ) ? $type : '';
2098      $_tab              = isset( $tab ) ? $tab : '';
2099  
2100      $max_upload_size = wp_max_upload_size();
2101      if ( ! $max_upload_size ) {
2102          $max_upload_size = 0;
2103      }
2104  
2105      ?>
2106      <div id="media-upload-notice">
2107      <?php
2108  
2109      if ( isset( $errors['upload_notice'] ) ) {
2110          echo $errors['upload_notice'];
2111      }
2112  
2113      ?>
2114      </div>
2115      <div id="media-upload-error">
2116      <?php
2117  
2118      if ( isset( $errors['upload_error'] ) && is_wp_error( $errors['upload_error'] ) ) {
2119          echo $errors['upload_error']->get_error_message();
2120      }
2121  
2122      ?>
2123      </div>
2124      <?php
2125  
2126      if ( is_multisite() && ! is_upload_space_available() ) {
2127          /**
2128           * Fires when an upload will exceed the defined upload space quota for a network site.
2129           *
2130           * @since 3.5.0
2131           */
2132          do_action( 'upload_ui_over_quota' );
2133          return;
2134      }
2135  
2136      /**
2137       * Fires just before the legacy (pre-3.5.0) upload interface is loaded.
2138       *
2139       * @since 2.6.0
2140       */
2141      do_action( 'pre-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2142  
2143      $post_params = array(
2144          'post_id'  => $post_id,
2145          '_wpnonce' => wp_create_nonce( 'media-form' ),
2146          'type'     => $_type,
2147          'tab'      => $_tab,
2148          'short'    => '1',
2149      );
2150  
2151      /**
2152       * Filters the media upload post parameters.
2153       *
2154       * @since 3.1.0 As 'swfupload_post_params'
2155       * @since 3.3.0
2156       *
2157       * @param array $post_params An array of media upload parameters used by Plupload.
2158       */
2159      $post_params = apply_filters( 'upload_post_params', $post_params );
2160  
2161      /*
2162      * Since 4.9 the `runtimes` setting is hardcoded in our version of Plupload to `html5,html4`,
2163      * and the `flash_swf_url` and `silverlight_xap_url` are not used.
2164      */
2165      $plupload_init = array(
2166          'browse_button'    => 'plupload-browse-button',
2167          'container'        => 'plupload-upload-ui',
2168          'drop_element'     => 'drag-drop-area',
2169          'file_data_name'   => 'async-upload',
2170          'url'              => $upload_action_url,
2171          'filters'          => array( 'max_file_size' => $max_upload_size . 'b' ),
2172          'multipart_params' => $post_params,
2173      );
2174  
2175      /*
2176       * Currently only iOS Safari supports multiple files uploading,
2177       * but iOS 7.x has a bug that prevents uploading of videos when enabled.
2178       * See #29602.
2179       */
2180      if (
2181          wp_is_mobile() &&
2182          strpos( $_SERVER['HTTP_USER_AGENT'], 'OS 7_' ) !== false &&
2183          strpos( $_SERVER['HTTP_USER_AGENT'], 'like Mac OS X' ) !== false
2184      ) {
2185          $plupload_init['multi_selection'] = false;
2186      }
2187  
2188      /**
2189       * Filters the default Plupload settings.
2190       *
2191       * @since 3.3.0
2192       *
2193       * @param array $plupload_init An array of default settings used by Plupload.
2194       */
2195      $plupload_init = apply_filters( 'plupload_init', $plupload_init );
2196  
2197      ?>
2198      <script type="text/javascript">
2199      <?php
2200      // Verify size is an int. If not return default value.
2201      $large_size_h = absint( get_option( 'large_size_h' ) );
2202  
2203      if ( ! $large_size_h ) {
2204          $large_size_h = 1024;
2205      }
2206  
2207      $large_size_w = absint( get_option( 'large_size_w' ) );
2208  
2209      if ( ! $large_size_w ) {
2210          $large_size_w = 1024;
2211      }
2212  
2213      ?>
2214      var resize_height = <?php echo $large_size_h; ?>, resize_width = <?php echo $large_size_w; ?>,
2215      wpUploaderInit = <?php echo wp_json_encode( $plupload_init ); ?>;
2216      </script>
2217  
2218      <div id="plupload-upload-ui" class="hide-if-no-js">
2219      <?php
2220      /**
2221       * Fires before the upload interface loads.
2222       *
2223       * @since 2.6.0 As 'pre-flash-upload-ui'
2224       * @since 3.3.0
2225       */
2226      do_action( 'pre-plupload-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2227  
2228      ?>
2229      <div id="drag-drop-area">
2230          <div class="drag-drop-inside">
2231          <p class="drag-drop-info"><?php _e( 'Drop files to upload' ); ?></p>
2232          <p><?php _ex( 'or', 'Uploader: Drop files here - or - Select Files' ); ?></p>
2233          <p class="drag-drop-buttons"><input id="plupload-browse-button" type="button" value="<?php esc_attr_e( 'Select Files' ); ?>" class="button" /></p>
2234          </div>
2235      </div>
2236      <?php
2237      /**
2238       * Fires after the upload interface loads.
2239       *
2240       * @since 2.6.0 As 'post-flash-upload-ui'
2241       * @since 3.3.0
2242       */
2243      do_action( 'post-plupload-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2244      ?>
2245      </div>
2246  
2247      <div id="html-upload-ui" class="hide-if-js">
2248      <?php
2249      /**
2250       * Fires before the upload button in the media upload interface.
2251       *
2252       * @since 2.6.0
2253       */
2254      do_action( 'pre-html-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2255  
2256      ?>
2257      <p id="async-upload-wrap">
2258          <label class="screen-reader-text" for="async-upload"><?php _e( 'Upload' ); ?></label>
2259          <input type="file" name="async-upload" id="async-upload" />
2260          <?php submit_button( __( 'Upload' ), 'primary', 'html-upload', false ); ?>
2261          <a href="#" onclick="try{top.tb_remove();}catch(e){}; return false;"><?php _e( 'Cancel' ); ?></a>
2262      </p>
2263      <div class="clear"></div>
2264      <?php
2265      /**
2266       * Fires after the upload button in the media upload interface.
2267       *
2268       * @since 2.6.0
2269       */
2270      do_action( 'post-html-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2271  
2272      ?>
2273      </div>
2274  
2275  <p class="max-upload-size">
2276      <?php
2277      /* translators: %s: Maximum allowed file size. */
2278      printf( __( 'Maximum upload file size: %s.' ), esc_html( size_format( $max_upload_size ) ) );
2279      ?>
2280  </p>
2281      <?php
2282  
2283      /**
2284       * Fires on the post upload UI screen.
2285       *
2286       * Legacy (pre-3.5.0) media workflow hook.
2287       *
2288       * @since 2.6.0
2289       */
2290      do_action( 'post-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2291  }
2292  
2293  /**
2294   * Outputs the legacy media upload form for a given media type.
2295   *
2296   * @since 2.5.0
2297   *
2298   * @param string       $type
2299   * @param array        $errors
2300   * @param int|WP_Error $id
2301   */
2302  function media_upload_type_form( $type = 'file', $errors = null, $id = null ) {
2303  
2304      media_upload_header();
2305  
2306      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2307  
2308      $form_action_url = admin_url( "media-upload.php?type=$type&tab=type&post_id=$post_id" );
2309  
2310      /**
2311       * Filters the media upload form action URL.
2312       *
2313       * @since 2.6.0
2314       *
2315       * @param string $form_action_url The media upload form action URL.
2316       * @param string $type            The type of media. Default 'file'.
2317       */
2318      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2319      $form_class      = 'media-upload-form type-form validate';
2320  
2321      if ( get_user_setting( 'uploader' ) ) {
2322          $form_class .= ' html-uploader';
2323      }
2324  
2325      ?>
2326      <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="<?php echo $type; ?>-form">
2327          <?php submit_button( '', 'hidden', 'save', false ); ?>
2328      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2329          <?php wp_nonce_field( 'media-form' ); ?>
2330  
2331      <h3 class="media-title"><?php _e( 'Add media files from your computer' ); ?></h3>
2332  
2333      <?php media_upload_form( $errors ); ?>
2334  
2335      <script type="text/javascript">
2336      jQuery(function($){
2337          var preloaded = $(".media-item.preloaded");
2338          if ( preloaded.length > 0 ) {
2339              preloaded.each(function(){prepareMediaItem({id:this.id.replace(/[^0-9]/g, '')},'');});
2340          }
2341          updateMediaForm();
2342      });
2343      </script>
2344      <div id="media-items">
2345      <?php
2346  
2347      if ( $id ) {
2348          if ( ! is_wp_error( $id ) ) {
2349              add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 );
2350              echo get_media_items( $id, $errors );
2351          } else {
2352              echo '<div id="media-upload-error">' . esc_html( $id->get_error_message() ) . '</div></div>';
2353              exit;
2354          }
2355      }
2356  
2357      ?>
2358      </div>
2359  
2360      <p class="savebutton ml-submit">
2361          <?php submit_button( __( 'Save all changes' ), '', 'save', false ); ?>
2362      </p>
2363      </form>
2364      <?php
2365  }
2366  
2367  /**
2368   * Outputs the legacy media upload form for external media.
2369   *
2370   * @since 2.7.0
2371   *
2372   * @param string  $type
2373   * @param object  $errors
2374   * @param int     $id
2375   */
2376  function media_upload_type_url_form( $type = null, $errors = null, $id = null ) {
2377      if ( null === $type ) {
2378          $type = 'image';
2379      }
2380  
2381      media_upload_header();
2382  
2383      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2384  
2385      $form_action_url = admin_url( "media-upload.php?type=$type&tab=type&post_id=$post_id" );
2386      /** This filter is documented in wp-admin/includes/media.php */
2387      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2388      $form_class      = 'media-upload-form type-form validate';
2389  
2390      if ( get_user_setting( 'uploader' ) ) {
2391          $form_class .= ' html-uploader';
2392      }
2393  
2394      ?>
2395      <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="<?php echo $type; ?>-form">
2396      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2397          <?php wp_nonce_field( 'media-form' ); ?>
2398  
2399      <h3 class="media-title"><?php _e( 'Insert media from another website' ); ?></h3>
2400  
2401      <script type="text/javascript">
2402      var addExtImage = {
2403  
2404      width : '',
2405      height : '',
2406      align : 'alignnone',
2407  
2408      insert : function() {
2409          var t = this, html, f = document.forms[0], cls, title = '', alt = '', caption = '';
2410  
2411          if ( '' === f.src.value || '' === t.width )
2412              return false;
2413  
2414          if ( f.alt.value )
2415              alt = f.alt.value.replace(/'/g, '&#039;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
2416  
2417          <?php
2418          /** This filter is documented in wp-admin/includes/media.php */
2419          if ( ! apply_filters( 'disable_captions', '' ) ) {
2420              ?>
2421              if ( f.caption.value ) {
2422                  caption = f.caption.value.replace(/\r\n|\r/g, '\n');
2423                  caption = caption.replace(/<[a-zA-Z0-9]+( [^<>]+)?>/g, function(a){
2424                      return a.replace(/[\r\n\t]+/, ' ');
2425                  });
2426  
2427                  caption = caption.replace(/\s*\n\s*/g, '<br />');
2428              }
2429              <?php
2430          }
2431  
2432          ?>
2433          cls = caption ? '' : ' class="'+t.align+'"';
2434  
2435          html = '<img alt="'+alt+'" src="'+f.src.value+'"'+cls+' width="'+t.width+'" height="'+t.height+'" />';
2436  
2437          if ( f.url.value ) {
2438              url = f.url.value.replace(/'/g, '&#039;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
2439              html = '<a href="'+url+'">'+html+'</a>';
2440          }
2441  
2442          if ( caption )
2443              html = '[caption id="" align="'+t.align+'" width="'+t.width+'"]'+html+caption+'[/caption]';
2444  
2445          var win = window.dialogArguments || opener || parent || top;
2446          win.send_to_editor(html);
2447          return false;
2448      },
2449  
2450      resetImageData : function() {
2451          var t = addExtImage;
2452  
2453          t.width = t.height = '';
2454          document.getElementById('go_button').style.color = '#bbb';
2455          if ( ! document.forms[0].src.value )
2456              document.getElementById('status_img').innerHTML = '';
2457          else document.getElementById('status_img').innerHTML = '<img src="<?php echo esc_url( admin_url( 'images/no.png' ) ); ?>" alt="" />';
2458      },
2459  
2460      updateImageData : function() {
2461          var t = addExtImage;
2462  
2463          t.width = t.preloadImg.width;
2464          t.height = t.preloadImg.height;
2465          document.getElementById('go_button').style.color = '#333';
2466          document.getElementById('status_img').innerHTML = '<img src="<?php echo esc_url( admin_url( 'images/yes.png' ) ); ?>" alt="" />';
2467      },
2468  
2469      getImageData : function() {
2470          if ( jQuery('table.describe').hasClass('not-image') )
2471              return;
2472  
2473          var t = addExtImage, src = document.forms[0].src.value;
2474  
2475          if ( ! src ) {
2476              t.resetImageData();
2477              return false;
2478          }
2479  
2480          document.getElementById('status_img').innerHTML = '<img src="<?php echo esc_url( admin_url( 'images/spinner-2x.gif' ) ); ?>" alt="" width="16" height="16" />';
2481          t.preloadImg = new Image();
2482          t.preloadImg.onload = t.updateImageData;
2483          t.preloadImg.onerror = t.resetImageData;
2484          t.preloadImg.src = src;
2485      }
2486      };
2487  
2488      jQuery(document).ready( function($) {
2489          $('.media-types input').click( function() {
2490              $('table.describe').toggleClass('not-image', $('#not-image').prop('checked') );
2491          });
2492      });
2493      </script>
2494  
2495      <div id="media-items">
2496      <div class="media-item media-blank">
2497      <?php
2498      /**
2499       * Filters the insert media from URL form HTML.
2500       *
2501       * @since 3.3.0
2502       *
2503       * @param string $form_html The insert from URL form HTML.
2504       */
2505      echo apply_filters( 'type_url_form_media', wp_media_insert_url_form( $type ) );
2506  
2507      ?>
2508      </div>
2509      </div>
2510      </form>
2511      <?php
2512  }
2513  
2514  /**
2515   * Adds gallery form to upload iframe
2516   *
2517   * @since 2.5.0
2518   *
2519   * @global string $redir_tab
2520   * @global string $type
2521   * @global string $tab
2522   *
2523   * @param array $errors
2524   */
2525  function media_upload_gallery_form( $errors ) {
2526      global $redir_tab, $type;
2527  
2528      $redir_tab = 'gallery';
2529      media_upload_header();
2530  
2531      $post_id         = (int) $_REQUEST['post_id'];
2532      $form_action_url = admin_url( "media-upload.php?type=$type&tab=gallery&post_id=$post_id" );
2533      /** This filter is documented in wp-admin/includes/media.php */
2534      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2535      $form_class      = 'media-upload-form validate';
2536  
2537      if ( get_user_setting( 'uploader' ) ) {
2538          $form_class .= ' html-uploader';
2539      }
2540  
2541      ?>
2542      <script type="text/javascript">
2543      jQuery(function($){
2544          var preloaded = $(".media-item.preloaded");
2545          if ( preloaded.length > 0 ) {
2546              preloaded.each(function(){prepareMediaItem({id:this.id.replace(/[^0-9]/g, '')},'');});
2547              updateMediaForm();
2548          }
2549      });
2550      </script>
2551      <div id="sort-buttons" class="hide-if-no-js">
2552      <span>
2553          <?php _e( 'All Tabs:' ); ?>
2554      <a href="#" id="showall"><?php _e( 'Show' ); ?></a>
2555      <a href="#" id="hideall" style="display:none;"><?php _e( 'Hide' ); ?></a>
2556      </span>
2557          <?php _e( 'Sort Order:' ); ?>
2558      <a href="#" id="asc"><?php _e( 'Ascending' ); ?></a> |
2559      <a href="#" id="desc"><?php _e( 'Descending' ); ?></a> |
2560      <a href="#" id="clear"><?php _ex( 'Clear', 'verb' ); ?></a>
2561      </div>
2562      <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="gallery-form">
2563          <?php wp_nonce_field( 'media-form' ); ?>
2564          <?php // media_upload_form( $errors ); ?>
2565      <table class="widefat">
2566      <thead><tr>
2567      <th><?php _e( 'Media' ); ?></th>
2568      <th class="order-head"><?php _e( 'Order' ); ?></th>
2569      <th class="actions-head"><?php _e( 'Actions' ); ?></th>
2570      </tr></thead>
2571      </table>
2572      <div id="media-items">
2573          <?php add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 ); ?>
2574          <?php echo get_media_items( $post_id, $errors ); ?>
2575      </div>
2576  
2577      <p class="ml-submit">
2578          <?php
2579          submit_button(
2580              __( 'Save all changes' ),
2581              'savebutton',
2582              'save',
2583              false,
2584              array(
2585                  'id'    => 'save-all',
2586                  'style' => 'display: none;',
2587              )
2588          );
2589          ?>
2590      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2591      <input type="hidden" name="type" value="<?php echo esc_attr( $GLOBALS['type'] ); ?>" />
2592      <input type="hidden" name="tab" value="<?php echo esc_attr( $GLOBALS['tab'] ); ?>" />
2593      </p>
2594  
2595      <div id="gallery-settings" style="display:none;">
2596      <div class="title"><?php _e( 'Gallery Settings' ); ?></div>
2597      <table id="basic" class="describe"><tbody>
2598          <tr>
2599          <th scope="row" class="label">
2600              <label>
2601              <span class="alignleft"><?php _e( 'Link thumbnails to:' ); ?></span>
2602              </label>
2603          </th>
2604          <td class="field">
2605              <input type="radio" name="linkto" id="linkto-file" value="file" />
2606              <label for="linkto-file" class="radio"><?php _e( 'Image File' ); ?></label>
2607  
2608              <input type="radio" checked="checked" name="linkto" id="linkto-post" value="post" />
2609              <label for="linkto-post" class="radio"><?php _e( 'Attachment Page' ); ?></label>
2610          </td>
2611          </tr>
2612  
2613          <tr>
2614          <th scope="row" class="label">
2615              <label>
2616              <span class="alignleft"><?php _e( 'Order images by:' ); ?></span>
2617              </label>
2618          </th>
2619          <td class="field">
2620              <select id="orderby" name="orderby">
2621                  <option value="menu_order" selected="selected"><?php _e( 'Menu order' ); ?></option>
2622                  <option value="title"><?php _e( 'Title' ); ?></option>
2623                  <option value="post_date"><?php _e( 'Date/Time' ); ?></option>
2624                  <option value="rand"><?php _e( 'Random' ); ?></option>
2625              </select>
2626          </td>
2627          </tr>
2628  
2629          <tr>
2630          <th scope="row" class="label">
2631              <label>
2632              <span class="alignleft"><?php _e( 'Order:' ); ?></span>
2633              </label>
2634          </th>
2635          <td class="field">
2636              <input type="radio" checked="checked" name="order" id="order-asc" value="asc" />
2637              <label for="order-asc" class="radio"><?php _e( 'Ascending' ); ?></label>
2638  
2639              <input type="radio" name="order" id="order-desc" value="desc" />
2640              <label for="order-desc" class="radio"><?php _e( 'Descending' ); ?></label>
2641          </td>
2642          </tr>
2643  
2644          <tr>
2645          <th scope="row" class="label">
2646              <label>
2647              <span class="alignleft"><?php _e( 'Gallery columns:' ); ?></span>
2648              </label>
2649          </th>
2650          <td class="field">
2651              <select id="columns" name="columns">
2652                  <option value="1">1</option>
2653                  <option value="2">2</option>
2654                  <option value="3" selected="selected">3</option>
2655                  <option value="4">4</option>
2656                  <option value="5">5</option>
2657                  <option value="6">6</option>
2658                  <option value="7">7</option>
2659                  <option value="8">8</option>
2660                  <option value="9">9</option>
2661              </select>
2662          </td>
2663          </tr>
2664      </tbody></table>
2665  
2666      <p class="ml-submit">
2667      <input type="button" class="button" style="display:none;" onMouseDown="wpgallery.update();" name="insert-gallery" id="insert-gallery" value="<?php esc_attr_e( 'Insert gallery' ); ?>" />
2668      <input type="button" class="button" style="display:none;" onMouseDown="wpgallery.update();" name="update-gallery" id="update-gallery" value="<?php esc_attr_e( 'Update gallery settings' ); ?>" />
2669      </p>
2670      </div>
2671      </form>
2672      <?php
2673  }
2674  
2675  /**
2676   * Outputs the legacy media upload form for the media library.
2677   *
2678   * @since 2.5.0
2679   *
2680   * @global wpdb      $wpdb            WordPress database abstraction object.
2681   * @global WP_Query  $wp_query        WordPress Query object.
2682   * @global WP_Locale $wp_locale       WordPress date and time locale object.
2683   * @global string    $type
2684   * @global string    $tab
2685   * @global array     $post_mime_types
2686   *
2687   * @param array $errors
2688   */
2689  function media_upload_library_form( $errors ) {
2690      global $wpdb, $wp_query, $wp_locale, $type, $tab, $post_mime_types;
2691  
2692      media_upload_header();
2693  
2694      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2695  
2696      $form_action_url = admin_url( "media-upload.php?type=$type&tab=library&post_id=$post_id" );
2697      /** This filter is documented in wp-admin/includes/media.php */
2698      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2699      $form_class      = 'media-upload-form validate';
2700  
2701      if ( get_user_setting( 'uploader' ) ) {
2702          $form_class .= ' html-uploader';
2703      }
2704  
2705      $q                   = $_GET;
2706      $q['posts_per_page'] = 10;
2707      $q['paged']          = isset( $q['paged'] ) ? (int) $q['paged'] : 0;
2708      if ( $q['paged'] < 1 ) {
2709          $q['paged'] = 1;
2710      }
2711      $q['offset'] = ( $q['paged'] - 1 ) * 10;
2712      if ( $q['offset'] < 1 ) {
2713          $q['offset'] = 0;
2714      }
2715  
2716      list($post_mime_types, $avail_post_mime_types) = wp_edit_attachments_query( $q );
2717  
2718      ?>
2719      <form id="filter" method="get">
2720      <input type="hidden" name="type" value="<?php echo esc_attr( $type ); ?>" />
2721      <input type="hidden" name="tab" value="<?php echo esc_attr( $tab ); ?>" />
2722      <input type="hidden" name="post_id" value="<?php echo (int) $post_id; ?>" />
2723      <input type="hidden" name="post_mime_type" value="<?php echo isset( $_GET['post_mime_type'] ) ? esc_attr( $_GET['post_mime_type'] ) : ''; ?>" />
2724      <input type="hidden" name="context" value="<?php echo isset( $_GET['context'] ) ? esc_attr( $_GET['context'] ) : ''; ?>" />
2725  
2726      <p id="media-search" class="search-box">
2727          <label class="screen-reader-text" for="media-search-input"><?php _e( 'Search Media' ); ?>:</label>
2728          <input type="search" id="media-search-input" name="s" value="<?php the_search_query(); ?>" />
2729          <?php submit_button( __( 'Search Media' ), '', '', false ); ?>
2730      </p>
2731  
2732      <ul class="subsubsub">
2733          <?php
2734          $type_links = array();
2735          $_num_posts = (array) wp_count_attachments();
2736          $matches    = wp_match_mime_types( array_keys( $post_mime_types ), array_keys( $_num_posts ) );
2737          foreach ( $matches as $_type => $reals ) {
2738              foreach ( $reals as $real ) {
2739                  if ( isset( $num_posts[ $_type ] ) ) {
2740                      $num_posts[ $_type ] += $_num_posts[ $real ];
2741                  } else {
2742                      $num_posts[ $_type ] = $_num_posts[ $real ];
2743                  }
2744              }
2745          }
2746          // If available type specified by media button clicked, filter by that type.
2747          if ( empty( $_GET['post_mime_type'] ) && ! empty( $num_posts[ $type ] ) ) {
2748              $_GET['post_mime_type']                        = $type;
2749              list($post_mime_types, $avail_post_mime_types) = wp_edit_attachments_query();
2750          }
2751          if ( empty( $_GET['post_mime_type'] ) || 'all' === $_GET['post_mime_type'] ) {
2752              $class = ' class="current"';
2753          } else {
2754              $class = '';
2755          }
2756          $type_links[] = '<li><a href="' . esc_url(
2757              add_query_arg(
2758                  array(
2759                      'post_mime_type' => 'all',
2760                      'paged'          => false,
2761                      'm'              => false,
2762                  )
2763              )
2764          ) . '"' . $class . '>' . __( 'All Types' ) . '</a>';
2765          foreach ( $post_mime_types as $mime_type => $label ) {
2766              $class = '';
2767  
2768              if ( ! wp_match_mime_types( $mime_type, $avail_post_mime_types ) ) {
2769                  continue;
2770              }
2771  
2772              if ( isset( $_GET['post_mime_type'] ) && wp_match_mime_types( $mime_type, $_GET['post_mime_type'] ) ) {
2773                  $class = ' class="current"';
2774              }
2775  
2776              $type_links[] = '<li><a href="' . esc_url(
2777                  add_query_arg(
2778                      array(
2779                          'post_mime_type' => $mime_type,
2780                          'paged'          => false,
2781                      )
2782                  )
2783              ) . '"' . $class . '>' . sprintf( translate_nooped_plural( $label[2], $num_posts[ $mime_type ] ), '<span id="' . $mime_type . '-counter">' . number_format_i18n( $num_posts[ $mime_type ] ) . '</span>' ) . '</a>';
2784          }
2785          /**
2786           * Filters the media upload mime type list items.
2787           *
2788           * Returned values should begin with an `<li>` tag.
2789           *
2790           * @since 3.1.0
2791           *
2792           * @param string[] $type_links An array of list items containing mime type link HTML.
2793           */
2794          echo implode( ' | </li>', apply_filters( 'media_upload_mime_type_links', $type_links ) ) . '</li>';
2795          unset( $type_links );
2796          ?>
2797      </ul>
2798  
2799      <div class="tablenav">
2800  
2801          <?php
2802          $page_links = paginate_links(
2803              array(
2804                  'base'      => add_query_arg( 'paged', '%#%' ),
2805                  'format'    => '',
2806                  'prev_text' => __( '&laquo;' ),
2807                  'next_text' => __( '&raquo;' ),
2808                  'total'     => ceil( $wp_query->found_posts / 10 ),
2809                  'current'   => $q['paged'],
2810              )
2811          );
2812  
2813          if ( $page_links ) {
2814              echo "<div class='tablenav-pages'>$page_links</div>";
2815          }
2816          ?>
2817  
2818      <div class="alignleft actions">
2819          <?php
2820  
2821          $arc_query = "SELECT DISTINCT YEAR(post_date) AS yyear, MONTH(post_date) AS mmonth FROM $wpdb->posts WHERE post_type = 'attachment' ORDER BY post_date DESC";
2822  
2823          $arc_result = $wpdb->get_results( $arc_query );
2824  
2825          $month_count    = count( $arc_result );
2826          $selected_month = isset( $_GET['m'] ) ? $_GET['m'] : 0;
2827  
2828          if ( $month_count && ! ( 1 == $month_count && 0 == $arc_result[0]->mmonth ) ) {
2829              ?>
2830              <select name='m'>
2831              <option<?php selected( $selected_month, 0 ); ?> value='0'><?php _e( 'All dates' ); ?></option>
2832              <?php
2833  
2834              foreach ( $arc_result as $arc_row ) {
2835                  if ( 0 == $arc_row->yyear ) {
2836                      continue;
2837                  }
2838  
2839                  $arc_row->mmonth = zeroise( $arc_row->mmonth, 2 );
2840  
2841                  if ( $arc_row->yyear . $arc_row->mmonth == $selected_month ) {
2842                      $default = ' selected="selected"';
2843                  } else {
2844                      $default = '';
2845                  }
2846  
2847                  echo "<option$default value='" . esc_attr( $arc_row->yyear . $arc_row->mmonth ) . "'>";
2848                  echo esc_html( $wp_locale->get_month( $arc_row->mmonth ) . " $arc_row->yyear" );
2849                  echo "</option>\n";
2850              }
2851  
2852              ?>
2853              </select>
2854          <?php } ?>
2855  
2856          <?php submit_button( __( 'Filter &#187;' ), '', 'post-query-submit', false ); ?>
2857  
2858      </div>
2859  
2860      <br class="clear" />
2861      </div>
2862      </form>
2863  
2864      <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="library-form">
2865      <?php wp_nonce_field( 'media-form' ); ?>
2866      <?php // media_upload_form( $errors ); ?>
2867  
2868      <script type="text/javascript">
2869      jQuery(function($){
2870          var preloaded = $(".media-item.preloaded");
2871          if ( preloaded.length > 0 ) {
2872              preloaded.each(function(){prepareMediaItem({id:this.id.replace(/[^0-9]/g, '')},'');});
2873              updateMediaForm();
2874          }
2875      });
2876      </script>
2877  
2878      <div id="media-items">
2879          <?php add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 ); ?>
2880          <?php echo get_media_items( null, $errors ); ?>
2881      </div>
2882      <p class="ml-submit">
2883          <?php submit_button( __( 'Save all changes' ), 'savebutton', 'save', false ); ?>
2884      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2885      </p>
2886      </form>
2887      <?php
2888  }
2889  
2890  /**
2891   * Creates the form for external url
2892   *
2893   * @since 2.7.0
2894   *
2895   * @param string $default_view
2896   * @return string the form html
2897   */
2898  function wp_media_insert_url_form( $default_view = 'image' ) {
2899      /** This filter is documented in wp-admin/includes/media.php */
2900      if ( ! apply_filters( 'disable_captions', '' ) ) {
2901          $caption = '
2902          <tr class="image-only">
2903              <th scope="row" class="label">
2904                  <label for="caption"><span class="alignleft">' . __( 'Image Caption' ) . '</span></label>
2905              </th>
2906              <td class="field"><textarea id="caption" name="caption"></textarea></td>
2907          </tr>';
2908      } else {
2909          $caption = '';
2910      }
2911  
2912      $default_align = get_option( 'image_default_align' );
2913  
2914      if ( empty( $default_align ) ) {
2915          $default_align = 'none';
2916      }
2917  
2918      if ( 'image' === $default_view ) {
2919          $view        = 'image-only';
2920          $table_class = '';
2921      } else {
2922          $view        = 'not-image';
2923          $table_class = $view;
2924      }
2925  
2926      return '
2927      <p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked( 'image-only', $view, false ) . ' /> ' . __( 'Image' ) . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked( 'not-image', $view, false ) . ' /> ' . __( 'Audio, Video, or Other File' ) . '</label></p>
2928      <p class="media-types media-types-required-info">' .
2929          /* translators: %s: Asterisk symbol (*). */
2930          sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
2931      '</p>
2932      <table class="describe ' . $table_class . '"><tbody>
2933          <tr>
2934              <th scope="row" class="label" style="width:130px;">
2935                  <label for="src"><span class="alignleft">' . __( 'URL' ) . '</span> <span class="required">*</span></label>
2936                  <span class="alignright" id="status_img"></span>
2937              </th>
2938              <td class="field"><input id="src" name="src" value="" type="text" required onblur="addExtImage.getImageData()" /></td>
2939          </tr>
2940  
2941          <tr>
2942              <th scope="row" class="label">
2943                  <label for="title"><span class="alignleft">' . __( 'Title' ) . '</span> <span class="required">*</span></label>
2944              </th>
2945              <td class="field"><input id="title" name="title" value="" type="text" required /></td>
2946          </tr>
2947  
2948          <tr class="not-image"><td></td><td><p class="help">' . __( 'Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;' ) . '</p></td></tr>
2949  
2950          <tr class="image-only">
2951              <th scope="row" class="label">
2952                  <label for="alt"><span class="alignleft">' . __( 'Alternative Text' ) . '</span></label>
2953              </th>
2954              <td class="field"><input id="alt" name="alt" value="" type="text" required />
2955              <p class="help">' . __( 'Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;' ) . '</p></td>
2956          </tr>
2957          ' . $caption . '
2958          <tr class="align image-only">
2959              <th scope="row" class="label"><p><label for="align">' . __( 'Alignment' ) . '</label></p></th>
2960              <td class="field">
2961                  <input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'none' === $default_align ? ' checked="checked"' : '' ) . ' />
2962                  <label for="align-none" class="align image-align-none-label">' . __( 'None' ) . '</label>
2963                  <input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'left' === $default_align ? ' checked="checked"' : '' ) . ' />
2964                  <label for="align-left" class="align image-align-left-label">' . __( 'Left' ) . '</label>
2965                  <input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'center' === $default_align ? ' checked="checked"' : '' ) . ' />
2966                  <label for="align-center" class="align image-align-center-label">' . __( 'Center' ) . '</label>
2967                  <input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'right' === $default_align ? ' checked="checked"' : '' ) . ' />
2968                  <label for="align-right" class="align image-align-right-label">' . __( 'Right' ) . '</label>
2969              </td>
2970          </tr>
2971  
2972          <tr class="image-only">
2973              <th scope="row" class="label">
2974                  <label for="url"><span class="alignleft">' . __( 'Link Image To:' ) . '</span></label>
2975              </th>
2976              <td class="field"><input id="url" name="url" value="" type="text" /><br />
2977  
2978              <button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __( 'None' ) . '</button>
2979              <button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __( 'Link to image' ) . '</button>
2980              <p class="help">' . __( 'Enter a link URL or click above for presets.' ) . '</p></td>
2981          </tr>
2982          <tr class="image-only">
2983              <td></td>
2984              <td>
2985                  <input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__( 'Insert into Post' ) . '" />
2986              </td>
2987          </tr>
2988          <tr class="not-image">
2989              <td></td>
2990              <td>
2991                  ' . get_submit_button( __( 'Insert into Post' ), '', 'insertonlybutton', false ) . '
2992              </td>
2993          </tr>
2994      </tbody></table>';
2995  }
2996  
2997  /**
2998   * Displays the multi-file uploader message.
2999   *
3000   * @since 2.6.0
3001   *
3002   * @global int $post_ID
3003   */
3004  function media_upload_flash_bypass() {
3005      $browser_uploader = admin_url( 'media-new.php?browser-uploader' );
3006  
3007      $post = get_post();
3008      if ( $post ) {
3009          $browser_uploader .= '&amp;post_id=' . (int) $post->ID;
3010      } elseif ( ! empty( $GLOBALS['post_ID'] ) ) {
3011          $browser_uploader .= '&amp;post_id=' . (int) $GLOBALS['post_ID'];
3012      }
3013  
3014      ?>
3015      <p class="upload-flash-bypass">
3016      <?php
3017          printf(
3018              /* translators: 1: URL to browser uploader, 2: Additional link attributes. */
3019              __( 'You are using the multi-file uploader. Problems? Try the <a href="%1$s" %2$s>browser uploader</a> instead.' ),
3020              $browser_uploader,
3021              'target="_blank"'
3022          );
3023      ?>
3024      </p>
3025      <?php
3026  }
3027  
3028  /**
3029   * Displays the browser's built-in uploader message.
3030   *
3031   * @since 2.6.0
3032   */
3033  function media_upload_html_bypass() {
3034      ?>
3035      <p class="upload-html-bypass hide-if-no-js">
3036          <?php _e( 'You are using the browser&#8217;s built-in file uploader. The WordPress uploader includes multiple file selection and drag and drop capability. <a href="#">Switch to the multi-file uploader</a>.' ); ?>
3037      </p>
3038      <?php
3039  }
3040  
3041  /**
3042   * Used to display a "After a file has been uploaded..." help message.
3043   *
3044   * @since 3.3.0
3045   */
3046  function media_upload_text_after() {}
3047  
3048  /**
3049   * Displays the checkbox to scale images.
3050   *
3051   * @since 3.3.0
3052   */
3053  function media_upload_max_image_resize() {
3054      $checked = get_user_setting( 'upload_resize' ) ? ' checked="true"' : '';
3055      $a       = '';
3056      $end     = '';
3057  
3058      if ( current_user_can( 'manage_options' ) ) {
3059          $a   = '<a href="' . esc_url( admin_url( 'options-media.php' ) ) . '" target="_blank">';
3060          $end = '</a>';
3061      }
3062  
3063      ?>
3064      <p class="hide-if-no-js"><label>
3065      <input name="image_resize" type="checkbox" id="image_resize" value="true"<?php echo $checked; ?> />
3066      <?php
3067      /* translators: 1: Link start tag, 2: Link end tag, 3: Width, 4: Height. */
3068      printf( __( 'Scale images to match the large size selected in %1$simage options%2$s (%3$d &times; %4$d).' ), $a, $end, (int) get_option( 'large_size_w', '1024' ), (int) get_option( 'large_size_h', '1024' ) );
3069  
3070      ?>
3071      </label></p>
3072      <?php
3073  }
3074  
3075  /**
3076   * Displays the out of storage quota message in Multisite.
3077   *
3078   * @since 3.5.0
3079   */
3080  function multisite_over_quota_message() {
3081      echo '<p>' . sprintf(
3082          /* translators: %s: Allowed space allocation. */
3083          __( 'Sorry, you have used your space allocation of %s. Please delete some files to upload more files.' ),
3084          size_format( get_space_allowed() * MB_IN_BYTES )
3085      ) . '</p>';
3086  }
3087  
3088  /**
3089   * Displays the image and editor in the post editor
3090   *
3091   * @since 3.5.0
3092   *
3093   * @param WP_Post $post A post object.
3094   */
3095  function edit_form_image_editor( $post ) {
3096      $open = isset( $_GET['image-editor'] );
3097  
3098      if ( $open ) {
3099          require_once ABSPATH . 'wp-admin/includes/image-edit.php';
3100      }
3101  
3102      $thumb_url     = false;
3103      $attachment_id = (int) $post->ID;
3104  
3105      if ( $attachment_id ) {
3106          $thumb_url = wp_get_attachment_image_src( $attachment_id, array( 900, 450 ), true );
3107      }
3108  
3109      $alt_text = get_post_meta( $post->ID, '_wp_attachment_image_alt', true );
3110  
3111      $att_url = wp_get_attachment_url( $post->ID );
3112      ?>
3113      <div class="wp_attachment_holder wp-clearfix">
3114      <?php
3115  
3116      if ( wp_attachment_is_image( $post->ID ) ) :
3117          $image_edit_button = '';
3118          if ( wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) {
3119              $nonce             = wp_create_nonce( "image_editor-$post->ID" );
3120              $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>";
3121          }
3122  
3123          $open_style     = '';
3124          $not_open_style = '';
3125  
3126          if ( $open ) {
3127              $open_style = ' style="display:none"';
3128          } else {
3129              $not_open_style = ' style="display:none"';
3130          }
3131  
3132          ?>
3133          <div class="imgedit-response" id="imgedit-response-<?php echo $attachment_id; ?>"></div>
3134  
3135          <div<?php echo $open_style; ?> class="wp_attachment_image wp-clearfix" id="media-head-<?php echo $attachment_id; ?>">
3136              <p id="thumbnail-head-<?php echo $attachment_id; ?>"><img class="thumbnail" src="<?php echo set_url_scheme( $thumb_url[0] ); ?>" style="max-width:100%" alt="" /></p>
3137              <p><?php echo $image_edit_button; ?></p>
3138          </div>
3139          <div<?php echo $not_open_style; ?> class="image-editor" id="image-editor-<?php echo $attachment_id; ?>">
3140          <?php
3141  
3142          if ( $open ) {
3143              wp_image_editor( $attachment_id );
3144          }
3145  
3146          ?>
3147          </div>
3148          <?php
3149      elseif ( $attachment_id && wp_attachment_is( 'audio', $post ) ) :
3150  
3151          wp_maybe_generate_attachment_metadata( $post );
3152  
3153          echo wp_audio_shortcode( array( 'src' => $att_url ) );
3154  
3155      elseif ( $attachment_id && wp_attachment_is( 'video', $post ) ) :
3156  
3157          wp_maybe_generate_attachment_metadata( $post );
3158  
3159          $meta = wp_get_attachment_metadata( $attachment_id );
3160          $w    = ! empty( $meta['width'] ) ? min( $meta['width'], 640 ) : 0;
3161          $h    = ! empty( $meta['height'] ) ? $meta['height'] : 0;
3162  
3163          if ( $h && $w < $meta['width'] ) {
3164              $h = round( ( $meta['height'] * $w ) / $meta['width'] );
3165          }
3166  
3167          $attr = array( 'src' => $att_url );
3168  
3169          if ( ! empty( $w ) && ! empty( $h ) ) {
3170              $attr['width']  = $w;
3171              $attr['height'] = $h;
3172          }
3173  
3174          $thumb_id = get_post_thumbnail_id( $attachment_id );
3175  
3176          if ( ! empty( $thumb_id ) ) {
3177              $attr['poster'] = wp_get_attachment_url( $thumb_id );
3178          }
3179  
3180          echo wp_video_shortcode( $attr );
3181  
3182      elseif ( isset( $thumb_url[0] ) ) :
3183          ?>
3184          <div class="wp_attachment_image wp-clearfix" id="media-head-<?php echo $attachment_id; ?>">
3185              <p id="thumbnail-head-<?php echo $attachment_id; ?>">
3186                  <img class="thumbnail" src="<?php echo set_url_scheme( $thumb_url[0] ); ?>" style="max-width:100%" alt="" />
3187              </p>
3188          </div>
3189          <?php
3190  
3191      else :
3192  
3193          /**
3194           * Fires when an attachment type can't be rendered in the edit form.
3195           *
3196           * @since 4.6.0
3197           *
3198           * @param WP_Post $post A post object.
3199           */
3200          do_action( 'wp_edit_form_attachment_display', $post );
3201  
3202      endif;
3203  
3204      ?>
3205      </div>
3206      <div class="wp_attachment_details edit-form-section">
3207      <?php if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) : ?>
3208          <p class="attachment-alt-text">
3209              <label for="attachment_alt"><strong><?php _e( 'Alternative Text' ); ?></strong></label><br />
3210              <input type="text" class="widefat" name="_wp_attachment_image_alt" id="attachment_alt" aria-describedby="alt-text-description" value="<?php echo esc_attr( $alt_text ); ?>" />
3211          </p>
3212          <p class="attachment-alt-text-description" id="alt-text-description">
3213          <?php
3214  
3215          printf(
3216              /* translators: 1: Link to tutorial, 2: Additional link attributes, 3: Accessibility text. */
3217              __( '<a href="%1$s" %2$s>Describe the purpose of the image%3$s</a>. Leave empty if the image is purely decorative.' ),
3218              esc_url( 'https://www.w3.org/WAI/tutorials/images/decision-tree' ),
3219              'target="_blank" rel="noopener"',
3220              sprintf(
3221                  '<span class="screen-reader-text"> %s</span>',
3222                  /* translators: Accessibility text. */
3223                  __( '(opens in a new tab)' )
3224              )
3225          );
3226  
3227          ?>
3228          </p>
3229      <?php endif; ?>
3230  
3231          <p>
3232              <label for="attachment_caption"><strong><?php _e( 'Caption' ); ?></strong></label><br />
3233              <textarea class="widefat" name="excerpt" id="attachment_caption"><?php echo $post->post_excerpt; ?></textarea>
3234          </p>
3235  
3236      <?php
3237  
3238      $quicktags_settings = array( 'buttons' => 'strong,em,link,block,del,ins,img,ul,ol,li,code,close' );
3239      $editor_args        = array(
3240          'textarea_name' => 'content',
3241          'textarea_rows' => 5,
3242          'media_buttons' => false,
3243          'tinymce'       => false,
3244          'quicktags'     => $quicktags_settings,
3245      );
3246  
3247      ?>
3248  
3249      <label for="attachment_content" class="attachment-content-description"><strong><?php _e( 'Description' ); ?></strong>
3250      <?php
3251  
3252      if ( preg_match( '#^(audio|video)/#', $post->post_mime_type ) ) {
3253          echo ': ' . __( 'Displayed on attachment pages.' );
3254      }
3255  
3256      ?>
3257      </label>
3258      <?php wp_editor( format_to_edit( $post->post_content ), 'attachment_content', $editor_args ); ?>
3259  
3260      </div>
3261      <?php
3262  
3263      $extras = get_compat_media_markup( $post->ID );
3264      echo $extras['item'];
3265      echo '<input type="hidden" id="image-edit-context" value="edit-attachment" />' . "\n";
3266  }
3267  
3268  /**
3269   * Displays non-editable attachment metadata in the publish meta box.
3270   *
3271   * @since 3.5.0
3272   */
3273  function attachment_submitbox_metadata() {
3274      $post          = get_post();
3275      $attachment_id = $post->ID;
3276  
3277      $file     = get_attached_file( $attachment_id );
3278      $filename = esc_html( wp_basename( $file ) );
3279  
3280      $media_dims = '';
3281      $meta       = wp_get_attachment_metadata( $attachment_id );
3282  
3283      if ( isset( $meta['width'], $meta['height'] ) ) {
3284          $media_dims .= "<span id='media-dims-$attachment_id'>{$meta['width']}&nbsp;&times;&nbsp;{$meta['height']}</span> ";
3285      }
3286      /** This filter is documented in wp-admin/includes/media.php */
3287      $media_dims = apply_filters( 'media_meta', $media_dims, $post );
3288  
3289      $att_url = wp_get_attachment_url( $attachment_id );
3290  
3291      $author = get_userdata( $post->post_author );
3292  
3293      $uploaded_by_name = __( '(no author)' );
3294      $uploaded_by_link = '';
3295      if ( $author->exists() ) {
3296          $uploaded_by_name = $author->display_name ? $author->display_name : $author->nickname;
3297          $uploaded_by_link = get_edit_user_link( $author->ID );
3298      }
3299      ?>
3300      <div class="misc-pub-section misc-pub-uploadedby">
3301          <?php if ( $uploaded_by_link ) { ?>
3302              <?php _e( 'Uploaded by:' ); ?> <a href="<?php echo $uploaded_by_link; ?>"><strong><?php echo $uploaded_by_name; ?></strong></a>
3303          <?php } else { ?>
3304              <?php _e( 'Uploaded by:' ); ?> <strong><?php echo $uploaded_by_name; ?></strong>
3305          <?php } ?>
3306      </div>
3307  
3308      <?php
3309      if ( $post->post_parent ) {
3310          $post_parent = get_post( $post->post_parent );
3311          if ( $post_parent ) {
3312              $uploaded_to_title = $post_parent->post_title ? $post_parent->post_title : __( '(no title)' );
3313              $uploaded_to_link  = get_edit_post_link( $post->post_parent, 'raw' );
3314              ?>
3315              <div class="misc-pub-section misc-pub-uploadedto">
3316                  <?php if ( $uploaded_to_link ) { ?>
3317                      <?php _e( 'Uploaded to:' ); ?> <a href="<?php echo $uploaded_to_link; ?>"><strong><?php echo $uploaded_to_title; ?></strong></a>
3318                  <?php } else { ?>
3319                      <?php _e( 'Uploaded to:' ); ?> <strong><?php echo $uploaded_to_title; ?></strong>
3320                  <?php } ?>
3321              </div>
3322              <?php
3323          }
3324      }
3325      ?>
3326  
3327      <div class="misc-pub-section misc-pub-attachment">
3328          <label for="attachment_url"><?php _e( 'File URL:' ); ?></label>
3329          <input type="text" class="widefat urlfield" readonly="readonly" name="attachment_url" id="attachment_url" value="<?php echo esc_attr( $att_url ); ?>" />
3330          <span class="copy-to-clipboard-container">
3331              <button type="button" class="button copy-attachment-url edit-media" data-clipboard-target="#attachment_url"><?php _e( 'Copy URL to clipboard' ); ?></button>
3332              <span class="success hidden" aria-hidden="true"><?php _e( 'Copied!' ); ?></span>
3333          </span>
3334      </div>
3335      <div class="misc-pub-section misc-pub-filename">
3336          <?php _e( 'File name:' ); ?> <strong><?php echo $filename; ?></strong>
3337      </div>
3338      <div class="misc-pub-section misc-pub-filetype">
3339          <?php _e( 'File type:' ); ?>
3340          <strong>
3341          <?php
3342  
3343          if ( preg_match( '/^.*?\.(\w+)$/', get_attached_file( $post->ID ), $matches ) ) {
3344              echo esc_html( strtoupper( $matches[1] ) );
3345              list( $mime_type ) = explode( '/', $post->post_mime_type );
3346              if ( 'image' !== $mime_type && ! empty( $meta['mime_type'] ) ) {
3347                  if ( "$mime_type/" . strtolower( $matches[1] ) !== $meta['mime_type'] ) {
3348                      echo ' (' . $meta['mime_type'] . ')';
3349                  }
3350              }
3351          } else {
3352              echo strtoupper( str_replace( 'image/', '', $post->post_mime_type ) );
3353          }
3354  
3355          ?>
3356          </strong>
3357      </div>
3358  
3359      <?php
3360  
3361      $file_size = false;
3362  
3363      if ( isset( $meta['filesize'] ) ) {
3364          $file_size = $meta['filesize'];
3365      } elseif ( file_exists( $file ) ) {
3366          $file_size = filesize( $file );
3367      }
3368  
3369      if ( ! empty( $file_size ) ) {
3370          ?>
3371          <div class="misc-pub-section misc-pub-filesize">
3372              <?php _e( 'File size:' ); ?> <strong><?php echo size_format( $file_size ); ?></strong>
3373          </div>
3374          <?php
3375      }
3376  
3377      if ( preg_match( '#^(audio|video)/#', $post->post_mime_type ) ) {
3378          $fields = array(
3379              'length_formatted' => __( 'Length:' ),
3380              'bitrate'          => __( 'Bitrate:' ),
3381          );
3382  
3383          /**
3384           * Filters the audio and video metadata fields to be shown in the publish meta box.
3385           *
3386           * The key for each item in the array should correspond to an attachment
3387           * metadata key, and the value should be the desired label.
3388           *
3389           * @since 3.7.0
3390           * @since 4.9.0 Added the `$post` parameter.
3391           *
3392           * @param array   $fields An array of the attachment metadata keys and labels.
3393           * @param WP_Post $post   WP_Post object for the current attachment.
3394           */
3395          $fields = apply_filters( 'media_submitbox_misc_sections', $fields, $post );
3396  
3397          foreach ( $fields as $key => $label ) {
3398              if ( empty( $meta[ $key ] ) ) {
3399                  continue;
3400              }
3401  
3402              ?>
3403              <div class="misc-pub-section misc-pub-mime-meta misc-pub-<?php echo sanitize_html_class( $key ); ?>">
3404                  <?php echo $label; ?>
3405                  <strong>
3406                  <?php
3407  
3408                  switch ( $key ) {
3409                      case 'bitrate':
3410                          echo round( $meta['bitrate'] / 1000 ) . 'kb/s';
3411                          if ( ! empty( $meta['bitrate_mode'] ) ) {
3412                              echo ' ' . strtoupper( esc_html( $meta['bitrate_mode'] ) );
3413                          }
3414                          break;
3415                      default:
3416                          echo esc_html( $meta[ $key ] );
3417                          break;
3418                  }
3419  
3420                  ?>
3421                  </strong>
3422              </div>
3423              <?php
3424          }
3425  
3426          $fields = array(
3427              'dataformat' => __( 'Audio Format:' ),
3428              'codec'      => __( 'Audio Codec:' ),
3429          );
3430  
3431          /**
3432           * Filters the audio attachment metadata fields to be shown in the publish meta box.
3433           *
3434           * The key for each item in the array should correspond to an attachment
3435           * metadata key, and the value should be the desired label.
3436           *
3437           * @since 3.7.0
3438           * @since 4.9.0 Added the `$post` parameter.
3439           *
3440           * @param array   $fields An array of the attachment metadata keys and labels.
3441           * @param WP_Post $post   WP_Post object for the current attachment.
3442           */
3443          $audio_fields = apply_filters( 'audio_submitbox_misc_sections', $fields, $post );
3444  
3445          foreach ( $audio_fields as $key => $label ) {
3446              if ( empty( $meta['audio'][ $key ] ) ) {
3447                  continue;
3448              }
3449  
3450              ?>
3451              <div class="misc-pub-section misc-pub-audio misc-pub-<?php echo sanitize_html_class( $key ); ?>">
3452                  <?php echo $label; ?> <strong><?php echo esc_html( $meta['audio'][ $key ] ); ?></strong>
3453              </div>
3454              <?php
3455          }
3456      }
3457  
3458      if ( $media_dims ) {
3459          ?>
3460          <div class="misc-pub-section misc-pub-dimensions">
3461              <?php _e( 'Dimensions:' ); ?> <strong><?php echo $media_dims; ?></strong>
3462          </div>
3463          <?php
3464      }
3465  
3466      if ( ! empty( $meta['original_image'] ) ) {
3467          ?>
3468          <div class="misc-pub-section misc-pub-original-image">
3469              <?php _e( 'Original image:' ); ?>
3470              <a href="<?php echo esc_url( wp_get_original_image_url( $attachment_id ) ); ?>">
3471                  <?php echo esc_html( wp_basename( wp_get_original_image_path( $attachment_id ) ) ); ?>
3472              </a>
3473          </div>
3474          <?php
3475      }
3476  }
3477  
3478  /**
3479   * Parse ID3v2, ID3v1, and getID3 comments to extract usable data
3480   *
3481   * @since 3.6.0
3482   *
3483   * @param array $metadata An existing array with data
3484   * @param array $data Data supplied by ID3 tags
3485   */
3486  function wp_add_id3_tag_data( &$metadata, $data ) {
3487      foreach ( array( 'id3v2', 'id3v1' ) as $version ) {
3488          if ( ! empty( $data[ $version ]['comments'] ) ) {
3489              foreach ( $data[ $version ]['comments'] as $key => $list ) {
3490                  if ( 'length' !== $key && ! empty( $list ) ) {
3491                      $metadata[ $key ] = wp_kses_post( reset( $list ) );
3492                      // Fix bug in byte stream analysis.
3493                      if ( 'terms_of_use' === $key && 0 === strpos( $metadata[ $key ], 'yright notice.' ) ) {
3494                          $metadata[ $key ] = 'Cop' . $metadata[ $key ];
3495                      }
3496                  }
3497              }
3498              break;
3499          }
3500      }
3501  
3502      if ( ! empty( $data['id3v2']['APIC'] ) ) {
3503          $image = reset( $data['id3v2']['APIC'] );
3504          if ( ! empty( $image['data'] ) ) {
3505              $metadata['image'] = array(
3506                  'data'   => $image['data'],
3507                  'mime'   => $image['image_mime'],
3508                  'width'  => $image['image_width'],
3509                  'height' => $image['image_height'],
3510              );
3511          }
3512      } elseif ( ! empty( $data['comments']['picture'] ) ) {
3513          $image = reset( $data['comments']['picture'] );
3514          if ( ! empty( $image['data'] ) ) {
3515              $metadata['image'] = array(
3516                  'data' => $image['data'],
3517                  'mime' => $image['image_mime'],
3518              );
3519          }
3520      }
3521  }
3522  
3523  /**
3524   * Retrieve metadata from a video file's ID3 tags
3525   *
3526   * @since 3.6.0
3527   *
3528   * @param string $file Path to file.
3529   * @return array|bool Returns array of metadata, if found.
3530   */
3531  function wp_read_video_metadata( $file ) {
3532      if ( ! file_exists( $file ) ) {
3533          return false;
3534      }
3535  
3536      $metadata = array();
3537  
3538      if ( ! defined( 'GETID3_TEMP_DIR' ) ) {
3539          define( 'GETID3_TEMP_DIR', get_temp_dir() );
3540      }
3541  
3542      if ( ! class_exists( 'getID3', false ) ) {
3543          require ABSPATH . WPINC . '/ID3/getid3.php';
3544      }
3545  
3546      $id3  = new getID3();
3547      $data = $id3->analyze( $file );
3548  
3549      if ( isset( $data['video']['lossless'] ) ) {
3550          $metadata['lossless'] = $data['video']['lossless'];
3551      }
3552  
3553      if ( ! empty( $data['video']['bitrate'] ) ) {
3554          $metadata['bitrate'] = (int) $data['video']['bitrate'];
3555      }
3556  
3557      if ( ! empty( $data['video']['bitrate_mode'] ) ) {
3558          $metadata['bitrate_mode'] = $data['video']['bitrate_mode'];
3559      }
3560  
3561      if ( ! empty( $data['filesize'] ) ) {
3562          $metadata['filesize'] = (int) $data['filesize'];
3563      }
3564  
3565      if ( ! empty( $data['mime_type'] ) ) {
3566          $metadata['mime_type'] = $data['mime_type'];
3567      }
3568  
3569      if ( ! empty( $data['playtime_seconds'] ) ) {
3570          $metadata['length'] = (int) round( $data['playtime_seconds'] );
3571      }
3572  
3573      if ( ! empty( $data['playtime_string'] ) ) {
3574          $metadata['length_formatted'] = $data['playtime_string'];
3575      }
3576  
3577      if ( ! empty( $data['video']['resolution_x'] ) ) {
3578          $metadata['width'] = (int) $data['video']['resolution_x'];
3579      }
3580  
3581      if ( ! empty( $data['video']['resolution_y'] ) ) {
3582          $metadata['height'] = (int) $data['video']['resolution_y'];
3583      }
3584  
3585      if ( ! empty( $data['fileformat'] ) ) {
3586          $metadata['fileformat'] = $data['fileformat'];
3587      }
3588  
3589      if ( ! empty( $data['video']['dataformat'] ) ) {
3590          $metadata['dataformat'] = $data['video']['dataformat'];
3591      }
3592  
3593      if ( ! empty( $data['video']['encoder'] ) ) {
3594          $metadata['encoder'] = $data['video']['encoder'];
3595      }
3596  
3597      if ( ! empty( $data['video']['codec'] ) ) {
3598          $metadata['codec'] = $data['video']['codec'];
3599      }
3600  
3601      if ( ! empty( $data['audio'] ) ) {
3602          unset( $data['audio']['streams'] );
3603          $metadata['audio'] = $data['audio'];
3604      }
3605  
3606      if ( empty( $metadata['created_timestamp'] ) ) {
3607          $created_timestamp = wp_get_media_creation_timestamp( $data );
3608  
3609          if ( false !== $created_timestamp ) {
3610              $metadata['created_timestamp'] = $created_timestamp;
3611          }
3612      }
3613  
3614      wp_add_id3_tag_data( $metadata, $data );
3615  
3616      $file_format = isset( $metadata['fileformat'] ) ? $metadata['fileformat'] : null;
3617  
3618      /**
3619       * Filters the array of metadata retrieved from a video.
3620       *
3621       * In core, usually this selection is what is stored.
3622       * More complete data can be parsed from the `$data` parameter.
3623       *
3624       * @since 4.9.0
3625       *
3626       * @param array  $metadata       Filtered Video metadata.
3627       * @param string $file           Path to video file.
3628       * @param string $file_format    File format of video, as analyzed by getID3.
3629       * @param string $data           Raw metadata from getID3.
3630       */
3631      return apply_filters( 'wp_read_video_metadata', $metadata, $file, $file_format, $data );
3632  }
3633  
3634  /**
3635   * Retrieve metadata from an audio file's ID3 tags.
3636   *
3637   * @since 3.6.0
3638   *
3639   * @param string $file Path to file.
3640   * @return array|bool Returns array of metadata, if found.
3641   */
3642  function wp_read_audio_metadata( $file ) {
3643      if ( ! file_exists( $file ) ) {
3644          return false;
3645      }
3646  
3647      $metadata = array();
3648  
3649      if ( ! defined( 'GETID3_TEMP_DIR' ) ) {
3650          define( 'GETID3_TEMP_DIR', get_temp_dir() );
3651      }
3652  
3653      if ( ! class_exists( 'getID3', false ) ) {
3654          require ABSPATH . WPINC . '/ID3/getid3.php';
3655      }
3656  
3657      $id3  = new getID3();
3658      $data = $id3->analyze( $file );
3659  
3660      if ( ! empty( $data['audio'] ) ) {
3661          unset( $data['audio']['streams'] );
3662          $metadata = $data['audio'];
3663      }
3664  
3665      if ( ! empty( $data['fileformat'] ) ) {
3666          $metadata['fileformat'] = $data['fileformat'];
3667      }
3668  
3669      if ( ! empty( $data['filesize'] ) ) {
3670          $metadata['filesize'] = (int) $data['filesize'];
3671      }
3672  
3673      if ( ! empty( $data['mime_type'] ) ) {
3674          $metadata['mime_type'] = $data['mime_type'];
3675      }
3676  
3677      if ( ! empty( $data['playtime_seconds'] ) ) {
3678          $metadata['length'] = (int) round( $data['playtime_seconds'] );
3679      }
3680  
3681      if ( ! empty( $data['playtime_string'] ) ) {
3682          $metadata['length_formatted'] = $data['playtime_string'];
3683      }
3684  
3685      if ( empty( $metadata['created_timestamp'] ) ) {
3686          $created_timestamp = wp_get_media_creation_timestamp( $data );
3687  
3688          if ( false !== $created_timestamp ) {
3689              $metadata['created_timestamp'] = $created_timestamp;
3690          }
3691      }
3692  
3693      wp_add_id3_tag_data( $metadata, $data );
3694  
3695      return $metadata;
3696  }
3697  
3698  /**
3699   * Parse creation date from media metadata.
3700   *
3701   * The getID3 library doesn't have a standard method for getting creation dates,
3702   * so the location of this data can vary based on the MIME type.
3703   *
3704   * @since 4.9.0
3705   *
3706   * @link https://github.com/JamesHeinrich/getID3/blob/master/structure.txt
3707   *
3708   * @param array $metadata The metadata returned by getID3::analyze().
3709   * @return int|bool A UNIX timestamp for the media's creation date if available
3710   *                  or a boolean FALSE if a timestamp could not be determined.
3711   */
3712  function wp_get_media_creation_timestamp( $metadata ) {
3713      $creation_date = false;
3714  
3715      if ( empty( $metadata['fileformat'] ) ) {
3716          return $creation_date;
3717      }
3718  
3719      switch ( $metadata['fileformat'] ) {
3720          case 'asf':
3721              if ( isset( $metadata['asf']['file_properties_object']['creation_date_unix'] ) ) {
3722                  $creation_date = (int) $metadata['asf']['file_properties_object']['creation_date_unix'];
3723              }
3724              break;
3725  
3726          case 'matroska':
3727          case 'webm':
3728              if ( isset( $metadata['matroska']['comments']['creation_time']['0'] ) ) {
3729                  $creation_date = strtotime( $metadata['matroska']['comments']['creation_time']['0'] );
3730              } elseif ( isset( $metadata['matroska']['info']['0']['DateUTC_unix'] ) ) {
3731                  $creation_date = (int) $metadata['matroska']['info']['0']['DateUTC_unix'];
3732              }
3733              break;
3734  
3735          case 'quicktime':
3736          case 'mp4':
3737              if ( isset( $metadata['quicktime']['moov']['subatoms']['0']['creation_time_unix'] ) ) {
3738                  $creation_date = (int) $metadata['quicktime']['moov']['subatoms']['0']['creation_time_unix'];
3739              }
3740              break;
3741      }
3742  
3743      return $creation_date;
3744  }
3745  
3746  /**
3747   * Encapsulates the logic for Attach/Detach actions.
3748   *
3749   * @since 4.2.0
3750   *
3751   * @global wpdb $wpdb WordPress database abstraction object.
3752   *
3753   * @param int    $parent_id Attachment parent ID.
3754   * @param string $action    Optional. Attach/detach action. Accepts 'attach' or 'detach'.
3755   *                          Default 'attach'.
3756   */
3757  function wp_media_attach_action( $parent_id, $action = 'attach' ) {
3758      global $wpdb;
3759  
3760      if ( ! $parent_id ) {
3761          return;
3762      }
3763  
3764      if ( ! current_user_can( 'edit_post', $parent_id ) ) {
3765          wp_die( __( 'Sorry, you are not allowed to edit this post.' ) );
3766      }
3767  
3768      $ids = array();
3769  
3770      foreach ( (array) $_REQUEST['media'] as $attachment_id ) {
3771          $attachment_id = (int) $attachment_id;
3772  
3773          if ( ! current_user_can( 'edit_post', $attachment_id ) ) {
3774              continue;
3775          }
3776  
3777          $ids[] = $attachment_id;
3778      }
3779  
3780      if ( ! empty( $ids ) ) {
3781          $ids_string = implode( ',', $ids );
3782  
3783          if ( 'attach' === $action ) {
3784              $result = $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET post_parent = %d WHERE post_type = 'attachment' AND ID IN ( $ids_string )", $parent_id ) );
3785          } else {
3786              $result = $wpdb->query( "UPDATE $wpdb->posts SET post_parent = 0 WHERE post_type = 'attachment' AND ID IN ( $ids_string )" );
3787          }
3788      }
3789  
3790      if ( isset( $result ) ) {
3791          foreach ( $ids as $attachment_id ) {
3792              /**
3793               * Fires when media is attached or detached from a post.
3794               *
3795               * @since 5.5.0
3796               *
3797               * @param string $action        Attach/detach action. Accepts 'attach' or 'detach'.
3798               * @param int    $attachment_id The attachment ID.
3799               * @param int    $parent_id     Attachment parent ID.
3800               */
3801              do_action( 'wp_media_attach_action', $action, $attachment_id, $parent_id );
3802  
3803              clean_attachment_cache( $attachment_id );
3804          }
3805  
3806          $location = 'upload.php';
3807          $referer  = wp_get_referer();
3808  
3809          if ( $referer ) {
3810              if ( false !== strpos( $referer, 'upload.php' ) ) {
3811                  $location = remove_query_arg( array( 'attached', 'detach' ), $referer );
3812              }
3813          }
3814  
3815          $key      = 'attach' === $action ? 'attached' : 'detach';
3816          $location = add_query_arg( array( $key => $result ), $location );
3817  
3818          wp_redirect( $location );
3819          exit;
3820      }
3821  }


Generated: Mon Oct 26 01:00:02 2020 Cross-referenced by PHPXref 0.7.1