From 7086111ad4dd997e12a3220e1ee60c9b9bcf0bb8 Mon Sep 17 00:00:00 2001
From: Charles <sircharlesaze@gmail.com>
Date: Tue, 7 Jan 2020 13:06:14 +0100
Subject: Added wordpress

---
 srcs/wordpress/wp-admin/includes/media.php | 3717 ++++++++++++++++++++++++++++
 1 file changed, 3717 insertions(+)
 create mode 100644 srcs/wordpress/wp-admin/includes/media.php

(limited to 'srcs/wordpress/wp-admin/includes/media.php')

diff --git a/srcs/wordpress/wp-admin/includes/media.php b/srcs/wordpress/wp-admin/includes/media.php
new file mode 100644
index 0000000..16b2052
--- /dev/null
+++ b/srcs/wordpress/wp-admin/includes/media.php
@@ -0,0 +1,3717 @@
+<?php
+/**
+ * WordPress Administration Media API.
+ *
+ * @package WordPress
+ * @subpackage Administration
+ */
+
+/**
+ * Defines the default media upload tabs
+ *
+ * @since 2.5.0
+ *
+ * @return array default tabs
+ */
+function media_upload_tabs() {
+	$_default_tabs = array(
+		'type'     => __( 'From Computer' ), // handler action suffix => tab text
+		'type_url' => __( 'From URL' ),
+		'gallery'  => __( 'Gallery' ),
+		'library'  => __( 'Media Library' ),
+	);
+
+	/**
+	 * Filters the available tabs in the legacy (pre-3.5.0) media popup.
+	 *
+	 * @since 2.5.0
+	 *
+	 * @param array $_default_tabs An array of media tabs.
+	 */
+	return apply_filters( 'media_upload_tabs', $_default_tabs );
+}
+
+/**
+ * Adds the gallery tab back to the tabs array if post has image attachments
+ *
+ * @since 2.5.0
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param array $tabs
+ * @return array $tabs with gallery if post has image attachment
+ */
+function update_gallery_tab( $tabs ) {
+	global $wpdb;
+
+	if ( ! isset( $_REQUEST['post_id'] ) ) {
+		unset( $tabs['gallery'] );
+		return $tabs;
+	}
+
+	$post_id = intval( $_REQUEST['post_id'] );
+
+	if ( $post_id ) {
+		$attachments = intval( $wpdb->get_var( $wpdb->prepare( "SELECT count(*) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' AND post_parent = %d", $post_id ) ) );
+	}
+
+	if ( empty( $attachments ) ) {
+		unset( $tabs['gallery'] );
+		return $tabs;
+	}
+
+	/* translators: %s: Number of attachments. */
+	$tabs['gallery'] = sprintf( __( 'Gallery (%s)' ), "<span id='attachments-count'>$attachments</span>" );
+
+	return $tabs;
+}
+
+/**
+ * Outputs the legacy media upload tabs UI.
+ *
+ * @since 2.5.0
+ *
+ * @global string $redir_tab
+ */
+function the_media_upload_tabs() {
+	global $redir_tab;
+	$tabs    = media_upload_tabs();
+	$default = 'type';
+
+	if ( ! empty( $tabs ) ) {
+		echo "<ul id='sidemenu'>\n";
+
+		if ( isset( $redir_tab ) && array_key_exists( $redir_tab, $tabs ) ) {
+			$current = $redir_tab;
+		} elseif ( isset( $_GET['tab'] ) && array_key_exists( $_GET['tab'], $tabs ) ) {
+			$current = $_GET['tab'];
+		} else {
+			/** This filter is documented in wp-admin/media-upload.php */
+			$current = apply_filters( 'media_upload_default_tab', $default );
+		}
+
+		foreach ( $tabs as $callback => $text ) {
+			$class = '';
+
+			if ( $current == $callback ) {
+				$class = " class='current'";
+			}
+
+			$href = add_query_arg(
+				array(
+					'tab'            => $callback,
+					's'              => false,
+					'paged'          => false,
+					'post_mime_type' => false,
+					'm'              => false,
+				)
+			);
+			$link = "<a href='" . esc_url( $href ) . "'$class>$text</a>";
+			echo "\t<li id='" . esc_attr( "tab-$callback" ) . "'>$link</li>\n";
+		}
+
+		echo "</ul>\n";
+	}
+}
+
+/**
+ * Retrieves the image HTML to send to the editor.
+ *
+ * @since 2.5.0
+ *
+ * @param int          $id      Image attachment id.
+ * @param string       $caption Image caption.
+ * @param string       $title   Image title attribute.
+ * @param string       $align   Image CSS alignment property.
+ * @param string       $url     Optional. Image src URL. Default empty.
+ * @param bool|string  $rel     Optional. Value for rel attribute or whether to add a default value. Default false.
+ * @param string|array $size    Optional. Image size. Accepts any valid image size, or an array of width
+ *                              and height values in pixels (in that order). Default 'medium'.
+ * @param string       $alt     Optional. Image alt attribute. Default empty.
+ * @return string The HTML output to insert into the editor.
+ */
+function get_image_send_to_editor( $id, $caption, $title, $align, $url = '', $rel = false, $size = 'medium', $alt = '' ) {
+
+	$html = get_image_tag( $id, $alt, '', $align, $size );
+
+	if ( $rel ) {
+		if ( is_string( $rel ) ) {
+			$rel = ' rel="' . esc_attr( $rel ) . '"';
+		} else {
+			$rel = ' rel="attachment wp-att-' . intval( $id ) . '"';
+		}
+	} else {
+		$rel = '';
+	}
+
+	if ( $url ) {
+		$html = '<a href="' . esc_attr( $url ) . '"' . $rel . '>' . $html . '</a>';
+	}
+
+	/**
+	 * Filters the image HTML markup to send to the editor when inserting an image.
+	 *
+	 * @since 2.5.0
+	 *
+	 * @param string       $html    The image HTML markup to send.
+	 * @param int          $id      The attachment id.
+	 * @param string       $caption The image caption.
+	 * @param string       $title   The image title.
+	 * @param string       $align   The image alignment.
+	 * @param string       $url     The image source URL.
+	 * @param string|array $size    Size of image. Image size or array of width and height values
+	 *                              (in that order). Default 'medium'.
+	 * @param string       $alt     The image alternative, or alt, text.
+	 */
+	$html = apply_filters( 'image_send_to_editor', $html, $id, $caption, $title, $align, $url, $size, $alt );
+
+	return $html;
+}
+
+/**
+ * Adds image shortcode with caption to editor
+ *
+ * @since 2.6.0
+ *
+ * @param string  $html    The image HTML markup to send.
+ * @param integer $id      Image attachment ID.
+ * @param string  $caption Image caption.
+ * @param string  $title   Image title attribute (not used).
+ * @param string  $align   Image CSS alignment property.
+ * @param string  $url     Image source URL (not used).
+ * @param string  $size    Image size (`thumbnail`, `medium`, `large`, `full`, or added with `add_image_size()`) (not used).
+ * @param string  $alt     Image `alt` attribute (not used).
+ * @return string The image HTML markup with caption shortcode.
+ */
+function image_add_caption( $html, $id, $caption, $title, $align, $url, $size, $alt = '' ) {
+
+	/**
+	 * Filters the caption text.
+	 *
+	 * Note: If the caption text is empty, the caption shortcode will not be appended
+	 * to the image HTML when inserted into the editor.
+	 *
+	 * Passing an empty value also prevents the {@see 'image_add_caption_shortcode'}
+	 * Filters from being evaluated at the end of image_add_caption().
+	 *
+	 * @since 4.1.0
+	 *
+	 * @param string $caption The original caption text.
+	 * @param int    $id      The attachment ID.
+	 */
+	$caption = apply_filters( 'image_add_caption_text', $caption, $id );
+
+	/**
+	 * Filters whether to disable captions.
+	 *
+	 * Prevents image captions from being appended to image HTML when inserted into the editor.
+	 *
+	 * @since 2.6.0
+	 *
+	 * @param bool $bool Whether to disable appending captions. Returning true to the filter
+	 *                   will disable captions. Default empty string.
+	 */
+	if ( empty( $caption ) || apply_filters( 'disable_captions', '' ) ) {
+		return $html;
+	}
+
+	$id = ( 0 < (int) $id ) ? 'attachment_' . $id : '';
+
+	if ( ! preg_match( '/width=["\']([0-9]+)/', $html, $matches ) ) {
+		return $html;
+	}
+
+	$width = $matches[1];
+
+	$caption = str_replace( array( "\r\n", "\r" ), "\n", $caption );
+	$caption = preg_replace_callback( '/<[a-zA-Z0-9]+(?: [^<>]+>)*/', '_cleanup_image_add_caption', $caption );
+
+	// Convert any remaining line breaks to <br>.
+	$caption = preg_replace( '/[ \n\t]*\n[ \t]*/', '<br />', $caption );
+
+	$html = preg_replace( '/(class=["\'][^\'"]*)align(none|left|right|center)\s?/', '$1', $html );
+	if ( empty( $align ) ) {
+		$align = 'none';
+	}
+
+	$shcode = '[caption id="' . $id . '" align="align' . $align . '" width="' . $width . '"]' . $html . ' ' . $caption . '[/caption]';
+
+	/**
+	 * Filters the image HTML markup including the caption shortcode.
+	 *
+	 * @since 2.6.0
+	 *
+	 * @param string $shcode The image HTML markup with caption shortcode.
+	 * @param string $html   The image HTML markup.
+	 */
+	return apply_filters( 'image_add_caption_shortcode', $shcode, $html );
+}
+
+/**
+ * Private preg_replace callback used in image_add_caption()
+ *
+ * @access private
+ * @since 3.4.0
+ */
+function _cleanup_image_add_caption( $matches ) {
+	// Remove any line breaks from inside the tags.
+	return preg_replace( '/[\r\n\t]+/', ' ', $matches[0] );
+}
+
+/**
+ * Adds image html to editor
+ *
+ * @since 2.5.0
+ *
+ * @param string $html
+ */
+function media_send_to_editor( $html ) {
+	?>
+	<script type="text/javascript">
+	var win = window.dialogArguments || opener || parent || top;
+	win.send_to_editor( <?php echo wp_json_encode( $html ); ?> );
+	</script>
+	<?php
+	exit;
+}
+
+/**
+ * Save a file submitted from a POST request and create an attachment post for it.
+ *
+ * @since 2.5.0
+ *
+ * @param string $file_id   Index of the `$_FILES` array that the file was sent. Required.
+ * @param int    $post_id   The post ID of a post to attach the media item to. Required, but can
+ *                          be set to 0, creating a media item that has no relationship to a post.
+ * @param array  $post_data Overwrite some of the attachment. Optional.
+ * @param array  $overrides Override the wp_handle_upload() behavior. Optional.
+ * @return int|WP_Error ID of the attachment or a WP_Error object on failure.
+ */
+function media_handle_upload( $file_id, $post_id, $post_data = array(), $overrides = array( 'test_form' => false ) ) {
+	$time = current_time( 'mysql' );
+	$post = get_post( $post_id );
+
+	if ( $post ) {
+		// The post date doesn't usually matter for pages, so don't backdate this upload.
+		if ( 'page' !== $post->post_type && substr( $post->post_date, 0, 4 ) > 0 ) {
+			$time = $post->post_date;
+		}
+	}
+
+	$file = wp_handle_upload( $_FILES[ $file_id ], $overrides, $time );
+
+	if ( isset( $file['error'] ) ) {
+		return new WP_Error( 'upload_error', $file['error'] );
+	}
+
+	$name = $_FILES[ $file_id ]['name'];
+	$ext  = pathinfo( $name, PATHINFO_EXTENSION );
+	$name = wp_basename( $name, ".$ext" );
+
+	$url     = $file['url'];
+	$type    = $file['type'];
+	$file    = $file['file'];
+	$title   = sanitize_text_field( $name );
+	$content = '';
+	$excerpt = '';
+
+	if ( preg_match( '#^audio#', $type ) ) {
+		$meta = wp_read_audio_metadata( $file );
+
+		if ( ! empty( $meta['title'] ) ) {
+			$title = $meta['title'];
+		}
+
+		if ( ! empty( $title ) ) {
+
+			if ( ! empty( $meta['album'] ) && ! empty( $meta['artist'] ) ) {
+				/* translators: 1: Audio track title, 2: Album title, 3: Artist name. */
+				$content .= sprintf( __( '"%1$s" from %2$s by %3$s.' ), $title, $meta['album'], $meta['artist'] );
+			} elseif ( ! empty( $meta['album'] ) ) {
+				/* translators: 1: Audio track title, 2: Album title. */
+				$content .= sprintf( __( '"%1$s" from %2$s.' ), $title, $meta['album'] );
+			} elseif ( ! empty( $meta['artist'] ) ) {
+				/* translators: 1: Audio track title, 2: Artist name. */
+				$content .= sprintf( __( '"%1$s" by %2$s.' ), $title, $meta['artist'] );
+			} else {
+				/* translators: %s: Audio track title. */
+				$content .= sprintf( __( '"%s".' ), $title );
+			}
+		} elseif ( ! empty( $meta['album'] ) ) {
+
+			if ( ! empty( $meta['artist'] ) ) {
+				/* translators: 1: Audio album title, 2: Artist name. */
+				$content .= sprintf( __( '%1$s by %2$s.' ), $meta['album'], $meta['artist'] );
+			} else {
+				$content .= $meta['album'] . '.';
+			}
+		} elseif ( ! empty( $meta['artist'] ) ) {
+
+			$content .= $meta['artist'] . '.';
+
+		}
+
+		if ( ! empty( $meta['year'] ) ) {
+			/* translators: Audio file track information. %d: Year of audio track release. */
+			$content .= ' ' . sprintf( __( 'Released: %d.' ), $meta['year'] );
+		}
+
+		if ( ! empty( $meta['track_number'] ) ) {
+			$track_number = explode( '/', $meta['track_number'] );
+
+			if ( isset( $track_number[1] ) ) {
+				/* translators: Audio file track information. 1: Audio track number, 2: Total audio tracks. */
+				$content .= ' ' . sprintf( __( 'Track %1$s of %2$s.' ), number_format_i18n( $track_number[0] ), number_format_i18n( $track_number[1] ) );
+			} else {
+				/* translators: Audio file track information. %s: Audio track number. */
+				$content .= ' ' . sprintf( __( 'Track %s.' ), number_format_i18n( $track_number[0] ) );
+			}
+		}
+
+		if ( ! empty( $meta['genre'] ) ) {
+			/* translators: Audio file genre information. %s: Audio genre name. */
+			$content .= ' ' . sprintf( __( 'Genre: %s.' ), $meta['genre'] );
+		}
+
+		// Use image exif/iptc data for title and caption defaults if possible.
+	} elseif ( 0 === strpos( $type, 'image/' ) ) {
+		$image_meta = wp_read_image_metadata( $file );
+
+		if ( $image_meta ) {
+			if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
+				$title = $image_meta['title'];
+			}
+
+			if ( trim( $image_meta['caption'] ) ) {
+				$excerpt = $image_meta['caption'];
+			}
+		}
+	}
+
+	// Construct the attachment array
+	$attachment = array_merge(
+		array(
+			'post_mime_type' => $type,
+			'guid'           => $url,
+			'post_parent'    => $post_id,
+			'post_title'     => $title,
+			'post_content'   => $content,
+			'post_excerpt'   => $excerpt,
+		),
+		$post_data
+	);
+
+	// This should never be set as it would then overwrite an existing attachment.
+	unset( $attachment['ID'] );
+
+	// Save the data
+	$attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );
+
+	if ( ! is_wp_error( $attachment_id ) ) {
+		// Set a custom header with the attachment_id.
+		// Used by the browser/client to resume creating image sub-sizes after a PHP fatal error.
+		if ( ! headers_sent() ) {
+			header( 'X-WP-Upload-Attachment-ID: ' . $attachment_id );
+		}
+
+		// The image sub-sizes are created during wp_generate_attachment_metadata().
+		// This is generally slow and may cause timeouts or out of memory errors.
+		wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
+	}
+
+	return $attachment_id;
+}
+
+/**
+ * Handles a side-loaded file in the same way as an uploaded file is handled by media_handle_upload().
+ *
+ * @since 2.6.0
+ * @since 5.3.0 The `$post_id` parameter was made optional.
+ *
+ * @param array  $file_array Array similar to a `$_FILES` upload array.
+ * @param int    $post_id    Optional. The post ID the media is associated with.
+ * @param string $desc       Optional. Description of the side-loaded file. Default null.
+ * @param array  $post_data  Optional. Post data to override. Default empty array.
+ * @return int|WP_Error The ID of the attachment or a WP_Error on failure.
+ */
+function media_handle_sideload( $file_array, $post_id = 0, $desc = null, $post_data = array() ) {
+	$overrides = array( 'test_form' => false );
+
+	$time = current_time( 'mysql' );
+	$post = get_post( $post_id );
+
+	if ( $post ) {
+		if ( substr( $post->post_date, 0, 4 ) > 0 ) {
+			$time = $post->post_date;
+		}
+	}
+
+	$file = wp_handle_sideload( $file_array, $overrides, $time );
+
+	if ( isset( $file['error'] ) ) {
+		return new WP_Error( 'upload_error', $file['error'] );
+	}
+
+	$url     = $file['url'];
+	$type    = $file['type'];
+	$file    = $file['file'];
+	$title   = preg_replace( '/\.[^.]+$/', '', wp_basename( $file ) );
+	$content = '';
+
+	// Use image exif/iptc data for title and caption defaults if possible.
+	$image_meta = wp_read_image_metadata( $file );
+
+	if ( $image_meta ) {
+		if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
+			$title = $image_meta['title'];
+		}
+
+		if ( trim( $image_meta['caption'] ) ) {
+			$content = $image_meta['caption'];
+		}
+	}
+
+	if ( isset( $desc ) ) {
+		$title = $desc;
+	}
+
+	// Construct the attachment array.
+	$attachment = array_merge(
+		array(
+			'post_mime_type' => $type,
+			'guid'           => $url,
+			'post_parent'    => $post_id,
+			'post_title'     => $title,
+			'post_content'   => $content,
+		),
+		$post_data
+	);
+
+	// This should never be set as it would then overwrite an existing attachment.
+	unset( $attachment['ID'] );
+
+	// Save the attachment metadata
+	$attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );
+
+	if ( ! is_wp_error( $attachment_id ) ) {
+		wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
+	}
+
+	return $attachment_id;
+}
+
+/**
+ * Outputs the iframe to display the media upload page.
+ *
+ * @since 2.5.0
+ * @since 5.3.0 Formalized the existing and already documented `...$args` parameter
+ *              by adding it to the function signature.
+ *
+ * @global int $body_id
+ *
+ * @param callable $content_func Function that outputs the content.
+ * @param mixed    ...$args      Optional additional parameters to pass to the callback function when it's called.
+ */
+function wp_iframe( $content_func, ...$args ) {
+	_wp_admin_html_begin();
+	?>
+	<title><?php bloginfo( 'name' ); ?> &rsaquo; <?php _e( 'Uploads' ); ?> &#8212; <?php _e( 'WordPress' ); ?></title>
+	<?php
+
+	wp_enqueue_style( 'colors' );
+	// Check callback name for 'media'
+	if (
+		( is_array( $content_func ) && ! empty( $content_func[1] ) && 0 === strpos( (string) $content_func[1], 'media' ) ) ||
+		( ! is_array( $content_func ) && 0 === strpos( $content_func, 'media' ) )
+	) {
+		wp_enqueue_style( 'deprecated-media' );
+	}
+	wp_enqueue_style( 'ie' );
+
+	?>
+	<script type="text/javascript">
+	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();}}};
+	var ajaxurl = '<?php echo admin_url( 'admin-ajax.php', 'relative' ); ?>', pagenow = 'media-upload-popup', adminpage = 'media-upload-popup',
+	isRtl = <?php echo (int) is_rtl(); ?>;
+	</script>
+	<?php
+	/** This action is documented in wp-admin/admin-header.php */
+	do_action( 'admin_enqueue_scripts', 'media-upload-popup' );
+
+	/**
+	 * Fires when admin styles enqueued for the legacy (pre-3.5.0) media upload popup are printed.
+	 *
+	 * @since 2.9.0
+	 */
+	do_action( 'admin_print_styles-media-upload-popup' );  // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
+
+	/** This action is documented in wp-admin/admin-header.php */
+	do_action( 'admin_print_styles' );
+
+	/**
+	 * Fires when admin scripts enqueued for the legacy (pre-3.5.0) media upload popup are printed.
+	 *
+	 * @since 2.9.0
+	 */
+	do_action( 'admin_print_scripts-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
+
+	/** This action is documented in wp-admin/admin-header.php */
+	do_action( 'admin_print_scripts' );
+
+	/**
+	 * Fires when scripts enqueued for the admin header for the legacy (pre-3.5.0)
+	 * media upload popup are printed.
+	 *
+	 * @since 2.9.0
+	 */
+	do_action( 'admin_head-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
+
+	/** This action is documented in wp-admin/admin-header.php */
+	do_action( 'admin_head' );
+
+	if ( is_string( $content_func ) ) {
+		/**
+		 * Fires in the admin header for each specific form tab in the legacy
+		 * (pre-3.5.0) media upload popup.
+		 *
+		 * The dynamic portion of the hook, `$content_func`, refers to the form
+		 * callback for the media upload type. Possible values include
+		 * 'media_upload_type_form', 'media_upload_type_url_form', and
+		 * 'media_upload_library_form'.
+		 *
+		 * @since 2.5.0
+		 */
+		do_action( "admin_head_{$content_func}" );
+	}
+
+	$body_id_attr = '';
+
+	if ( isset( $GLOBALS['body_id'] ) ) {
+		$body_id_attr = ' id="' . $GLOBALS['body_id'] . '"';
+	}
+
+	?>
+	</head>
+	<body<?php echo $body_id_attr; ?> class="wp-core-ui no-js">
+	<script type="text/javascript">
+	document.body.className = document.body.className.replace('no-js', 'js');
+	</script>
+	<?php
+
+	call_user_func_array( $content_func, $args );
+
+	/** This action is documented in wp-admin/admin-footer.php */
+	do_action( 'admin_print_footer_scripts' );
+
+	?>
+	<script type="text/javascript">if(typeof wpOnload=='function')wpOnload();</script>
+	</body>
+	</html>
+	<?php
+}
+
+/**
+ * Adds the media button to the editor
+ *
+ * @since 2.5.0
+ *
+ * @global int $post_ID
+ *
+ * @staticvar int $instance
+ *
+ * @param string $editor_id
+ */
+function media_buttons( $editor_id = 'content' ) {
+	static $instance = 0;
+	$instance++;
+
+	$post = get_post();
+
+	if ( ! $post && ! empty( $GLOBALS['post_ID'] ) ) {
+		$post = $GLOBALS['post_ID'];
+	}
+
+	wp_enqueue_media( array( 'post' => $post ) );
+
+	$img = '<span class="wp-media-buttons-icon"></span> ';
+
+	$id_attribute = $instance === 1 ? ' id="insert-media-button"' : '';
+
+	printf(
+		'<button type="button"%s class="button insert-media add_media" data-editor="%s">%s</button>',
+		$id_attribute,
+		esc_attr( $editor_id ),
+		$img . __( 'Add Media' )
+	);
+
+	/**
+	 * Filters the legacy (pre-3.5.0) media buttons.
+	 *
+	 * Use {@see 'media_buttons'} action instead.
+	 *
+	 * @since 2.5.0
+	 * @deprecated 3.5.0 Use {@see 'media_buttons'} action instead.
+	 *
+	 * @param string $string Media buttons context. Default empty.
+	 */
+	$legacy_filter = apply_filters( 'media_buttons_context', '' );
+
+	if ( $legacy_filter ) {
+		// #WP22559. Close <a> if a plugin started by closing <a> to open their own <a> tag.
+		if ( 0 === stripos( trim( $legacy_filter ), '</a>' ) ) {
+			$legacy_filter .= '</a>';
+		}
+		echo $legacy_filter;
+	}
+}
+
+/**
+ * @global int $post_ID
+ * @param string $type
+ * @param int $post_id
+ * @param string $tab
+ * @return string
+ */
+function get_upload_iframe_src( $type = null, $post_id = null, $tab = null ) {
+	global $post_ID;
+
+	if ( empty( $post_id ) ) {
+		$post_id = $post_ID;
+	}
+
+	$upload_iframe_src = add_query_arg( 'post_id', (int) $post_id, admin_url( 'media-upload.php' ) );
+
+	if ( $type && 'media' != $type ) {
+		$upload_iframe_src = add_query_arg( 'type', $type, $upload_iframe_src );
+	}
+
+	if ( ! empty( $tab ) ) {
+		$upload_iframe_src = add_query_arg( 'tab', $tab, $upload_iframe_src );
+	}
+
+	/**
+	 * Filters the upload iframe source URL for a specific media type.
+	 *
+	 * The dynamic portion of the hook name, `$type`, refers to the type
+	 * of media uploaded.
+	 *
+	 * @since 3.0.0
+	 *
+	 * @param string $upload_iframe_src The upload iframe source URL by type.
+	 */
+	$upload_iframe_src = apply_filters( "{$type}_upload_iframe_src", $upload_iframe_src );
+
+	return add_query_arg( 'TB_iframe', true, $upload_iframe_src );
+}
+
+/**
+ * Handles form submissions for the legacy media uploader.
+ *
+ * @since 2.5.0
+ *
+ * @return mixed void|object WP_Error on failure
+ */
+function media_upload_form_handler() {
+	check_admin_referer( 'media-form' );
+
+	$errors = null;
+
+	if ( isset( $_POST['send'] ) ) {
+		$keys    = array_keys( $_POST['send'] );
+		$send_id = (int) reset( $keys );
+	}
+
+	if ( ! empty( $_POST['attachments'] ) ) {
+		foreach ( $_POST['attachments'] as $attachment_id => $attachment ) {
+			$post  = get_post( $attachment_id, ARRAY_A );
+			$_post = $post;
+
+			if ( ! current_user_can( 'edit_post', $attachment_id ) ) {
+				continue;
+			}
+
+			if ( isset( $attachment['post_content'] ) ) {
+				$post['post_content'] = $attachment['post_content'];
+			}
+
+			if ( isset( $attachment['post_title'] ) ) {
+				$post['post_title'] = $attachment['post_title'];
+			}
+
+			if ( isset( $attachment['post_excerpt'] ) ) {
+				$post['post_excerpt'] = $attachment['post_excerpt'];
+			}
+
+			if ( isset( $attachment['menu_order'] ) ) {
+				$post['menu_order'] = $attachment['menu_order'];
+			}
+
+			if ( isset( $send_id ) && $attachment_id == $send_id ) {
+				if ( isset( $attachment['post_parent'] ) ) {
+					$post['post_parent'] = $attachment['post_parent'];
+				}
+			}
+
+			/**
+			 * Filters the attachment fields to be saved.
+			 *
+			 * @since 2.5.0
+			 *
+			 * @see wp_get_attachment_metadata()
+			 *
+			 * @param array $post       An array of post data.
+			 * @param array $attachment An array of attachment metadata.
+			 */
+			$post = apply_filters( 'attachment_fields_to_save', $post, $attachment );
+
+			if ( isset( $attachment['image_alt'] ) ) {
+				$image_alt = wp_unslash( $attachment['image_alt'] );
+
+				if ( $image_alt != get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) ) {
+					$image_alt = wp_strip_all_tags( $image_alt, true );
+
+					// Update_meta expects slashed.
+					update_post_meta( $attachment_id, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
+				}
+			}
+
+			if ( isset( $post['errors'] ) ) {
+				$errors[ $attachment_id ] = $post['errors'];
+				unset( $post['errors'] );
+			}
+
+			if ( $post != $_post ) {
+				wp_update_post( $post );
+			}
+
+			foreach ( get_attachment_taxonomies( $post ) as $t ) {
+				if ( isset( $attachment[ $t ] ) ) {
+					wp_set_object_terms( $attachment_id, array_map( 'trim', preg_split( '/,+/', $attachment[ $t ] ) ), $t, false );
+				}
+			}
+		}
+	}
+
+	if ( isset( $_POST['insert-gallery'] ) || isset( $_POST['update-gallery'] ) ) {
+		?>
+		<script type="text/javascript">
+		var win = window.dialogArguments || opener || parent || top;
+		win.tb_remove();
+		</script>
+		<?php
+
+		exit;
+	}
+
+	if ( isset( $send_id ) ) {
+		$attachment = wp_unslash( $_POST['attachments'][ $send_id ] );
+		$html       = isset( $attachment['post_title'] ) ? $attachment['post_title'] : '';
+
+		if ( ! empty( $attachment['url'] ) ) {
+			$rel = '';
+
+			if ( strpos( $attachment['url'], 'attachment_id' ) || get_attachment_link( $send_id ) == $attachment['url'] ) {
+				$rel = " rel='attachment wp-att-" . esc_attr( $send_id ) . "'";
+			}
+
+			$html = "<a href='{$attachment['url']}'$rel>$html</a>";
+		}
+
+		/**
+		 * Filters the HTML markup for a media item sent to the editor.
+		 *
+		 * @since 2.5.0
+		 *
+		 * @see wp_get_attachment_metadata()
+		 *
+		 * @param string $html       HTML markup for a media item sent to the editor.
+		 * @param int    $send_id    The first key from the $_POST['send'] data.
+		 * @param array  $attachment Array of attachment metadata.
+		 */
+		$html = apply_filters( 'media_send_to_editor', $html, $send_id, $attachment );
+
+		return media_send_to_editor( $html );
+	}
+
+	return $errors;
+}
+
+/**
+ * Handles the process of uploading media.
+ *
+ * @since 2.5.0
+ *
+ * @return null|string
+ */
+function wp_media_upload_handler() {
+	$errors = array();
+	$id     = 0;
+
+	if ( isset( $_POST['html-upload'] ) && ! empty( $_FILES ) ) {
+		check_admin_referer( 'media-form' );
+		// Upload File button was clicked
+		$id = media_handle_upload( 'async-upload', $_REQUEST['post_id'] );
+		unset( $_FILES );
+
+		if ( is_wp_error( $id ) ) {
+			$errors['upload_error'] = $id;
+			$id                     = false;
+		}
+	}
+
+	if ( ! empty( $_POST['insertonlybutton'] ) ) {
+		$src = $_POST['src'];
+
+		if ( ! empty( $src ) && ! strpos( $src, '://' ) ) {
+			$src = "http://$src";
+		}
+
+		if ( isset( $_POST['media_type'] ) && 'image' != $_POST['media_type'] ) {
+			$title = esc_html( wp_unslash( $_POST['title'] ) );
+			if ( empty( $title ) ) {
+				$title = esc_html( wp_basename( $src ) );
+			}
+
+			if ( $title && $src ) {
+				$html = "<a href='" . esc_url( $src ) . "'>$title</a>";
+			}
+
+			$type = 'file';
+			$ext  = preg_replace( '/^.+?\.([^.]+)$/', '$1', $src );
+
+			if ( $ext ) {
+				$ext_type = wp_ext2type( $ext );
+				if ( 'audio' == $ext_type || 'video' == $ext_type ) {
+					$type = $ext_type;
+				}
+			}
+
+			/**
+			 * Filters the URL sent to the editor for a specific media type.
+			 *
+			 * The dynamic portion of the hook name, `$type`, refers to the type
+			 * of media being sent.
+			 *
+			 * @since 3.3.0
+			 *
+			 * @param string $html  HTML markup sent to the editor.
+			 * @param string $src   Media source URL.
+			 * @param string $title Media title.
+			 */
+			$html = apply_filters( "{$type}_send_to_editor_url", $html, esc_url_raw( $src ), $title );
+		} else {
+			$align = '';
+			$alt   = esc_attr( wp_unslash( $_POST['alt'] ) );
+
+			if ( isset( $_POST['align'] ) ) {
+				$align = esc_attr( wp_unslash( $_POST['align'] ) );
+				$class = " class='align$align'";
+			}
+
+			if ( ! empty( $src ) ) {
+				$html = "<img src='" . esc_url( $src ) . "' alt='$alt'$class />";
+			}
+
+			/**
+			 * Filters the image URL sent to the editor.
+			 *
+			 * @since 2.8.0
+			 *
+			 * @param string $html  HTML markup sent to the editor for an image.
+			 * @param string $src   Image source URL.
+			 * @param string $alt   Image alternate, or alt, text.
+			 * @param string $align The image alignment. Default 'alignnone'. Possible values include
+			 *                      'alignleft', 'aligncenter', 'alignright', 'alignnone'.
+			 */
+			$html = apply_filters( 'image_send_to_editor_url', $html, esc_url_raw( $src ), $alt, $align );
+		}
+
+		return media_send_to_editor( $html );
+	}
+
+	if ( isset( $_POST['save'] ) ) {
+		$errors['upload_notice'] = __( 'Saved.' );
+		wp_enqueue_script( 'admin-gallery' );
+
+		return wp_iframe( 'media_upload_gallery_form', $errors );
+
+	} elseif ( ! empty( $_POST ) ) {
+		$return = media_upload_form_handler();
+
+		if ( is_string( $return ) ) {
+			return $return;
+		}
+
+		if ( is_array( $return ) ) {
+			$errors = $return;
+		}
+	}
+
+	if ( isset( $_GET['tab'] ) && $_GET['tab'] == 'type_url' ) {
+		$type = 'image';
+
+		if ( isset( $_GET['type'] ) && in_array( $_GET['type'], array( 'video', 'audio', 'file' ) ) ) {
+			$type = $_GET['type'];
+		}
+
+		return wp_iframe( 'media_upload_type_url_form', $type, $errors, $id );
+	}
+
+	return wp_iframe( 'media_upload_type_form', 'image', $errors, $id );
+}
+
+/**
+ * Downloads an image from the specified URL and attaches it to a post.
+ *
+ * @since 2.6.0
+ * @since 4.2.0 Introduced the `$return` parameter.
+ * @since 4.8.0 Introduced the 'id' option within the `$return` parameter.
+ * @since 5.3.0 The `$post_id` parameter was made optional.
+ *
+ * @param string $file    The URL of the image to download.
+ * @param int    $post_id Optional. The post ID the media is to be associated with.
+ * @param string $desc    Optional. Description of the image.
+ * @param string $return  Optional. Accepts 'html' (image tag html) or 'src' (URL), or 'id' (attachment ID). Default 'html'.
+ * @return string|WP_Error Populated HTML img tag on success, WP_Error object otherwise.
+ */
+function media_sideload_image( $file, $post_id = 0, $desc = null, $return = 'html' ) {
+	if ( ! empty( $file ) ) {
+
+		// Set variables for storage, fix file filename for query strings.
+		preg_match( '/[^\?]+\.(jpe?g|jpe|gif|png)\b/i', $file, $matches );
+
+		if ( ! $matches ) {
+			return new WP_Error( 'image_sideload_failed', __( 'Invalid image URL' ) );
+		}
+
+		$file_array         = array();
+		$file_array['name'] = wp_basename( $matches[0] );
+
+		// Download file to temp location.
+		$file_array['tmp_name'] = download_url( $file );
+
+		// If error storing temporarily, return the error.
+		if ( is_wp_error( $file_array['tmp_name'] ) ) {
+			return $file_array['tmp_name'];
+		}
+
+		// Do the validation and storage stuff.
+		$id = media_handle_sideload( $file_array, $post_id, $desc );
+
+		// If error storing permanently, unlink.
+		if ( is_wp_error( $id ) ) {
+			@unlink( $file_array['tmp_name'] );
+			return $id;
+			// If attachment id was requested, return it early.
+		} elseif ( $return === 'id' ) {
+			return $id;
+		}
+
+		$src = wp_get_attachment_url( $id );
+	}
+
+	// Finally, check to make sure the file has been saved, then return the HTML.
+	if ( ! empty( $src ) ) {
+		if ( $return === 'src' ) {
+			return $src;
+		}
+
+		$alt  = isset( $desc ) ? esc_attr( $desc ) : '';
+		$html = "<img src='$src' alt='$alt' />";
+
+		return $html;
+	} else {
+		return new WP_Error( 'image_sideload_failed' );
+	}
+}
+
+/**
+ * Retrieves the legacy media uploader form in an iframe.
+ *
+ * @since 2.5.0
+ *
+ * @return string|null
+ */
+function media_upload_gallery() {
+	$errors = array();
+
+	if ( ! empty( $_POST ) ) {
+		$return = media_upload_form_handler();
+
+		if ( is_string( $return ) ) {
+			return $return;
+		}
+
+		if ( is_array( $return ) ) {
+			$errors = $return;
+		}
+	}
+
+	wp_enqueue_script( 'admin-gallery' );
+	return wp_iframe( 'media_upload_gallery_form', $errors );
+}
+
+/**
+ * Retrieves the legacy media library form in an iframe.
+ *
+ * @since 2.5.0
+ *
+ * @return string|null
+ */
+function media_upload_library() {
+	$errors = array();
+
+	if ( ! empty( $_POST ) ) {
+		$return = media_upload_form_handler();
+
+		if ( is_string( $return ) ) {
+			return $return;
+		}
+		if ( is_array( $return ) ) {
+			$errors = $return;
+		}
+	}
+
+	return wp_iframe( 'media_upload_library_form', $errors );
+}
+
+/**
+ * Retrieve HTML for the image alignment radio buttons with the specified one checked.
+ *
+ * @since 2.7.0
+ *
+ * @param WP_Post $post
+ * @param string $checked
+ * @return string
+ */
+function image_align_input_fields( $post, $checked = '' ) {
+
+	if ( empty( $checked ) ) {
+		$checked = get_user_setting( 'align', 'none' );
+	}
+
+	$alignments = array(
+		'none'   => __( 'None' ),
+		'left'   => __( 'Left' ),
+		'center' => __( 'Center' ),
+		'right'  => __( 'Right' ),
+	);
+
+	if ( ! array_key_exists( (string) $checked, $alignments ) ) {
+		$checked = 'none';
+	}
+
+	$out = array();
+
+	foreach ( $alignments as $name => $label ) {
+		$name  = esc_attr( $name );
+		$out[] = "<input type='radio' name='attachments[{$post->ID}][align]' id='image-align-{$name}-{$post->ID}' value='$name'" .
+			( $checked == $name ? " checked='checked'" : '' ) .
+			" /><label for='image-align-{$name}-{$post->ID}' class='align image-align-{$name}-label'>$label</label>";
+	}
+
+	return join( "\n", $out );
+}
+
+/**
+ * Retrieve HTML for the size radio buttons with the specified one checked.
+ *
+ * @since 2.7.0
+ *
+ * @param WP_Post $post
+ * @param bool|string $check
+ * @return array
+ */
+function image_size_input_fields( $post, $check = '' ) {
+	/**
+	 * Filters the names and labels of the default image sizes.
+	 *
+	 * @since 3.3.0
+	 *
+	 * @param array $size_names Array of image sizes and their names. Default values
+	 *                          include 'Thumbnail', 'Medium', 'Large', 'Full Size'.
+	 */
+	$size_names = apply_filters(
+		'image_size_names_choose',
+		array(
+			'thumbnail' => __( 'Thumbnail' ),
+			'medium'    => __( 'Medium' ),
+			'large'     => __( 'Large' ),
+			'full'      => __( 'Full Size' ),
+		)
+	);
+
+	if ( empty( $check ) ) {
+		$check = get_user_setting( 'imgsize', 'medium' );
+	}
+
+	$out = array();
+
+	foreach ( $size_names as $size => $label ) {
+		$downsize = image_downsize( $post->ID, $size );
+		$checked  = '';
+
+		// Is this size selectable?
+		$enabled = ( $downsize[3] || 'full' == $size );
+		$css_id  = "image-size-{$size}-{$post->ID}";
+
+		// If this size is the default but that's not available, don't select it.
+		if ( $size == $check ) {
+			if ( $enabled ) {
+				$checked = " checked='checked'";
+			} else {
+				$check = '';
+			}
+		} elseif ( ! $check && $enabled && 'thumbnail' != $size ) {
+			/*
+			 * If $check is not enabled, default to the first available size
+			 * that's bigger than a thumbnail.
+			 */
+			$check   = $size;
+			$checked = " checked='checked'";
+		}
+
+		$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 />";
+
+		$html .= "<label for='{$css_id}'>$label</label>";
+
+		// Only show the dimensions if that choice is available.
+		if ( $enabled ) {
+			$html .= " <label for='{$css_id}' class='help'>" . sprintf( '(%d&nbsp;&times;&nbsp;%d)', $downsize[1], $downsize[2] ) . '</label>';
+		}
+		$html .= '</div>';
+
+		$out[] = $html;
+	}
+
+	return array(
+		'label' => __( 'Size' ),
+		'input' => 'html',
+		'html'  => join( "\n", $out ),
+	);
+}
+
+/**
+ * Retrieve HTML for the Link URL buttons with the default link type as specified.
+ *
+ * @since 2.7.0
+ *
+ * @param WP_Post $post
+ * @param string $url_type
+ * @return string
+ */
+function image_link_input_fields( $post, $url_type = '' ) {
+
+	$file = wp_get_attachment_url( $post->ID );
+	$link = get_attachment_link( $post->ID );
+
+	if ( empty( $url_type ) ) {
+		$url_type = get_user_setting( 'urlbutton', 'post' );
+	}
+
+	$url = '';
+
+	if ( $url_type == 'file' ) {
+		$url = $file;
+	} elseif ( $url_type == 'post' ) {
+		$url = $link;
+	}
+
+	return "
+	<input type='text' class='text urlfield' name='attachments[$post->ID][url]' value='" . esc_attr( $url ) . "' /><br />
+	<button type='button' class='button urlnone' data-link-url=''>" . __( 'None' ) . "</button>
+	<button type='button' class='button urlfile' data-link-url='" . esc_attr( $file ) . "'>" . __( 'File URL' ) . "</button>
+	<button type='button' class='button urlpost' data-link-url='" . esc_attr( $link ) . "'>" . __( 'Attachment Post URL' ) . '</button>
+';
+}
+
+/**
+ * Output a textarea element for inputting an attachment caption.
+ *
+ * @since 3.4.0
+ *
+ * @param WP_Post $edit_post Attachment WP_Post object.
+ * @return string HTML markup for the textarea element.
+ */
+function wp_caption_input_textarea( $edit_post ) {
+	// Post data is already escaped.
+	$name = "attachments[{$edit_post->ID}][post_excerpt]";
+
+	return '<textarea name="' . $name . '" id="' . $name . '">' . $edit_post->post_excerpt . '</textarea>';
+}
+
+/**
+ * Retrieves the image attachment fields to edit form fields.
+ *
+ * @since 2.5.0
+ *
+ * @param array $form_fields
+ * @param object $post
+ * @return array
+ */
+function image_attachment_fields_to_edit( $form_fields, $post ) {
+	return $form_fields;
+}
+
+/**
+ * Retrieves the single non-image attachment fields to edit form fields.
+ *
+ * @since 2.5.0
+ *
+ * @param array   $form_fields An array of attachment form fields.
+ * @param WP_Post $post        The WP_Post attachment object.
+ * @return array Filtered attachment form fields.
+ */
+function media_single_attachment_fields_to_edit( $form_fields, $post ) {
+	unset( $form_fields['url'], $form_fields['align'], $form_fields['image-size'] );
+	return $form_fields;
+}
+
+/**
+ * Retrieves the post non-image attachment fields to edito form fields.
+ *
+ * @since 2.8.0
+ *
+ * @param array   $form_fields An array of attachment form fields.
+ * @param WP_Post $post        The WP_Post attachment object.
+ * @return array Filtered attachment form fields.
+ */
+function media_post_single_attachment_fields_to_edit( $form_fields, $post ) {
+	unset( $form_fields['image_url'] );
+	return $form_fields;
+}
+
+/**
+ * Filters input from media_upload_form_handler() and assigns a default
+ * post_title from the file name if none supplied.
+ *
+ * Illustrates the use of the {@see 'attachment_fields_to_save'} filter
+ * which can be used to add default values to any field before saving to DB.
+ *
+ * @since 2.5.0
+ *
+ * @param array $post       The WP_Post attachment object converted to an array.
+ * @param array $attachment An array of attachment metadata.
+ * @return array Filtered attachment post object.
+ */
+function image_attachment_fields_to_save( $post, $attachment ) {
+	if ( substr( $post['post_mime_type'], 0, 5 ) == 'image' ) {
+		if ( strlen( trim( $post['post_title'] ) ) == 0 ) {
+			$attachment_url                           = ( isset( $post['attachment_url'] ) ) ? $post['attachment_url'] : $post['guid'];
+			$post['post_title']                       = preg_replace( '/\.\w+$/', '', wp_basename( $attachment_url ) );
+			$post['errors']['post_title']['errors'][] = __( 'Empty Title filled from filename.' );
+		}
+	}
+
+	return $post;
+}
+
+/**
+ * Retrieves the media element HTML to send to the editor.
+ *
+ * @since 2.5.0
+ *
+ * @param string $html
+ * @param integer $attachment_id
+ * @param array $attachment
+ * @return string
+ */
+function image_media_send_to_editor( $html, $attachment_id, $attachment ) {
+	$post = get_post( $attachment_id );
+
+	if ( substr( $post->post_mime_type, 0, 5 ) == 'image' ) {
+		$url   = $attachment['url'];
+		$align = ! empty( $attachment['align'] ) ? $attachment['align'] : 'none';
+		$size  = ! empty( $attachment['image-size'] ) ? $attachment['image-size'] : 'medium';
+		$alt   = ! empty( $attachment['image_alt'] ) ? $attachment['image_alt'] : '';
+		$rel   = ( strpos( $url, 'attachment_id' ) || $url === get_attachment_link( $attachment_id ) );
+
+		return get_image_send_to_editor( $attachment_id, $attachment['post_excerpt'], $attachment['post_title'], $align, $url, $rel, $size, $alt );
+	}
+
+	return $html;
+}
+
+/**
+ * Retrieves the attachment fields to edit form fields.
+ *
+ * @since 2.5.0
+ *
+ * @param WP_Post $post
+ * @param array $errors
+ * @return array
+ */
+function get_attachment_fields_to_edit( $post, $errors = null ) {
+	if ( is_int( $post ) ) {
+		$post = get_post( $post );
+	}
+
+	if ( is_array( $post ) ) {
+		$post = new WP_Post( (object) $post );
+	}
+
+	$image_url = wp_get_attachment_url( $post->ID );
+
+	$edit_post = sanitize_post( $post, 'edit' );
+
+	$form_fields = array(
+		'post_title'   => array(
+			'label' => __( 'Title' ),
+			'value' => $edit_post->post_title,
+		),
+		'image_alt'    => array(),
+		'post_excerpt' => array(
+			'label' => __( 'Caption' ),
+			'input' => 'html',
+			'html'  => wp_caption_input_textarea( $edit_post ),
+		),
+		'post_content' => array(
+			'label' => __( 'Description' ),
+			'value' => $edit_post->post_content,
+			'input' => 'textarea',
+		),
+		'url'          => array(
+			'label' => __( 'Link URL' ),
+			'input' => 'html',
+			'html'  => image_link_input_fields( $post, get_option( 'image_default_link_type' ) ),
+			'helps' => __( 'Enter a link URL or click above for presets.' ),
+		),
+		'menu_order'   => array(
+			'label' => __( 'Order' ),
+			'value' => $edit_post->menu_order,
+		),
+		'image_url'    => array(
+			'label' => __( 'File URL' ),
+			'input' => 'html',
+			'html'  => "<input type='text' class='text urlfield' readonly='readonly' name='attachments[$post->ID][url]' value='" . esc_attr( $image_url ) . "' /><br />",
+			'value' => wp_get_attachment_url( $post->ID ),
+			'helps' => __( 'Location of the uploaded file.' ),
+		),
+	);
+
+	foreach ( get_attachment_taxonomies( $post ) as $taxonomy ) {
+		$t = (array) get_taxonomy( $taxonomy );
+
+		if ( ! $t['public'] || ! $t['show_ui'] ) {
+			continue;
+		}
+
+		if ( empty( $t['label'] ) ) {
+			$t['label'] = $taxonomy;
+		}
+
+		if ( empty( $t['args'] ) ) {
+			$t['args'] = array();
+		}
+
+		$terms = get_object_term_cache( $post->ID, $taxonomy );
+
+		if ( false === $terms ) {
+			$terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
+		}
+
+		$values = array();
+
+		foreach ( $terms as $term ) {
+			$values[] = $term->slug;
+		}
+
+		$t['value'] = join( ', ', $values );
+
+		$form_fields[ $taxonomy ] = $t;
+	}
+
+	// Merge default fields with their errors, so any key passed with the error (e.g. 'error', 'helps', 'value') will replace the default
+	// The recursive merge is easily traversed with array casting: foreach ( (array) $things as $thing )
+	$form_fields = array_merge_recursive( $form_fields, (array) $errors );
+
+	// This was formerly in image_attachment_fields_to_edit().
+	if ( substr( $post->post_mime_type, 0, 5 ) == 'image' ) {
+		$alt = get_post_meta( $post->ID, '_wp_attachment_image_alt', true );
+
+		if ( empty( $alt ) ) {
+			$alt = '';
+		}
+
+		$form_fields['post_title']['required'] = true;
+
+		$form_fields['image_alt'] = array(
+			'value' => $alt,
+			'label' => __( 'Alternative Text' ),
+			'helps' => __( 'Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;' ),
+		);
+
+		$form_fields['align'] = array(
+			'label' => __( 'Alignment' ),
+			'input' => 'html',
+			'html'  => image_align_input_fields( $post, get_option( 'image_default_align' ) ),
+		);
+
+		$form_fields['image-size'] = image_size_input_fields( $post, get_option( 'image_default_size', 'medium' ) );
+
+	} else {
+		unset( $form_fields['image_alt'] );
+	}
+
+	/**
+	 * Filters the attachment fields to edit.
+	 *
+	 * @since 2.5.0
+	 *
+	 * @param array   $form_fields An array of attachment form fields.
+	 * @param WP_Post $post        The WP_Post attachment object.
+	 */
+	$form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post );
+
+	return $form_fields;
+}
+
+/**
+ * Retrieve HTML for media items of post gallery.
+ *
+ * The HTML markup retrieved will be created for the progress of SWF Upload
+ * component. Will also create link for showing and hiding the form to modify
+ * the image attachment.
+ *
+ * @since 2.5.0
+ *
+ * @global WP_Query $wp_the_query WordPress Query object.
+ *
+ * @param int $post_id Optional. Post ID.
+ * @param array $errors Errors for attachment, if any.
+ * @return string
+ */
+function get_media_items( $post_id, $errors ) {
+	$attachments = array();
+
+	if ( $post_id ) {
+		$post = get_post( $post_id );
+
+		if ( $post && $post->post_type == 'attachment' ) {
+			$attachments = array( $post->ID => $post );
+		} else {
+			$attachments = get_children(
+				array(
+					'post_parent' => $post_id,
+					'post_type'   => 'attachment',
+					'orderby'     => 'menu_order ASC, ID',
+					'order'       => 'DESC',
+				)
+			);
+		}
+	} else {
+		if ( is_array( $GLOBALS['wp_the_query']->posts ) ) {
+			foreach ( $GLOBALS['wp_the_query']->posts as $attachment ) {
+				$attachments[ $attachment->ID ] = $attachment;
+			}
+		}
+	}
+
+	$output = '';
+	foreach ( (array) $attachments as $id => $attachment ) {
+		if ( $attachment->post_status == 'trash' ) {
+			continue;
+		}
+
+		$item = get_media_item( $id, array( 'errors' => isset( $errors[ $id ] ) ? $errors[ $id ] : null ) );
+
+		if ( $item ) {
+			$output .= "\n<div id='media-item-$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>";
+		}
+	}
+
+	return $output;
+}
+
+/**
+ * Retrieve HTML form for modifying the image attachment.
+ *
+ * @since 2.5.0
+ *
+ * @global string $redir_tab
+ *
+ * @param int $attachment_id Attachment ID for modification.
+ * @param string|array $args Optional. Override defaults.
+ * @return string HTML form for attachment.
+ */
+function get_media_item( $attachment_id, $args = null ) {
+	global $redir_tab;
+
+	$thumb_url     = false;
+	$attachment_id = intval( $attachment_id );
+
+	if ( $attachment_id ) {
+		$thumb_url = wp_get_attachment_image_src( $attachment_id, 'thumbnail', true );
+
+		if ( $thumb_url ) {
+			$thumb_url = $thumb_url[0];
+		}
+	}
+
+	$post            = get_post( $attachment_id );
+	$current_post_id = ! empty( $_GET['post_id'] ) ? (int) $_GET['post_id'] : 0;
+
+	$default_args = array(
+		'errors'     => null,
+		'send'       => $current_post_id ? post_type_supports( get_post_type( $current_post_id ), 'editor' ) : true,
+		'delete'     => true,
+		'toggle'     => true,
+		'show_title' => true,
+	);
+
+	$parsed_args = wp_parse_args( $args, $default_args );
+
+	/**
+	 * Filters the arguments used to retrieve an image for the edit image form.
+	 *
+	 * @since 3.1.0
+	 *
+	 * @see get_media_item
+	 *
+	 * @param array $parsed_args An array of arguments.
+	 */
+	$parsed_args = apply_filters( 'get_media_item_args', $parsed_args );
+
+	$toggle_on  = __( 'Show' );
+	$toggle_off = __( 'Hide' );
+
+	$file     = get_attached_file( $post->ID );
+	$filename = esc_html( wp_basename( $file ) );
+	$title    = esc_attr( $post->post_title );
+
+	$post_mime_types = get_post_mime_types();
+	$keys            = array_keys( wp_match_mime_types( array_keys( $post_mime_types ), $post->post_mime_type ) );
+	$type            = reset( $keys );
+	$type_html       = "<input type='hidden' id='type-of-$attachment_id' value='" . esc_attr( $type ) . "' />";
+
+	$form_fields = get_attachment_fields_to_edit( $post, $parsed_args['errors'] );
+
+	if ( $parsed_args['toggle'] ) {
+		$class        = empty( $parsed_args['errors'] ) ? 'startclosed' : 'startopen';
+		$toggle_links = "
+		<a class='toggle describe-toggle-on' href='#'>$toggle_on</a>
+		<a class='toggle describe-toggle-off' href='#'>$toggle_off</a>";
+	} else {
+		$class        = '';
+		$toggle_links = '';
+	}
+
+	$display_title = ( ! empty( $title ) ) ? $title : $filename; // $title shouldn't ever be empty, but just in case
+	$display_title = $parsed_args['show_title'] ? "<div class='filename new'><span class='title'>" . wp_html_excerpt( $display_title, 60, '&hellip;' ) . '</span></div>' : '';
+
+	$gallery = ( ( isset( $_REQUEST['tab'] ) && 'gallery' == $_REQUEST['tab'] ) || ( isset( $redir_tab ) && 'gallery' == $redir_tab ) );
+	$order   = '';
+
+	foreach ( $form_fields as $key => $val ) {
+		if ( 'menu_order' == $key ) {
+			if ( $gallery ) {
+				$order = "<div class='menu_order'> <input class='menu_order_input' type='text' id='attachments[$attachment_id][menu_order]' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ) . "' /></div>";
+			} else {
+				$order = "<input type='hidden' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ) . "' />";
+			}
+
+			unset( $form_fields['menu_order'] );
+			break;
+		}
+	}
+
+	$media_dims = '';
+	$meta       = wp_get_attachment_metadata( $post->ID );
+
+	if ( isset( $meta['width'], $meta['height'] ) ) {
+		$media_dims .= "<span id='media-dims-$post->ID'>{$meta['width']}&nbsp;&times;&nbsp;{$meta['height']}</span> ";
+	}
+
+	/**
+	 * Filters the media metadata.
+	 *
+	 * @since 2.5.0
+	 *
+	 * @param string  $media_dims The HTML markup containing the media dimensions.
+	 * @param WP_Post $post       The WP_Post attachment object.
+	 */
+	$media_dims = apply_filters( 'media_meta', $media_dims, $post );
+
+	$image_edit_button = '';
+
+	if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) {
+		$nonce             = wp_create_nonce( "image_editor-$post->ID" );
+		$image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>";
+	}
+
+	$attachment_url = get_permalink( $attachment_id );
+
+	$item = "
+		$type_html
+		$toggle_links
+		$order
+		$display_title
+		<table class='slidetoggle describe $class'>
+			<thead class='media-item-info' id='media-head-$post->ID'>
+			<tr>
+			<td class='A1B1' id='thumbnail-head-$post->ID'>
+			<p><a href='$attachment_url' target='_blank'><img class='thumbnail' src='$thumb_url' alt='' /></a></p>
+			<p>$image_edit_button</p>
+			</td>
+			<td>
+			<p><strong>" . __( 'File name:' ) . "</strong> $filename</p>
+			<p><strong>" . __( 'File type:' ) . "</strong> $post->post_mime_type</p>
+			<p><strong>" . __( 'Upload date:' ) . '</strong> ' . mysql2date( __( 'F j, Y' ), $post->post_date ) . '</p>';
+
+	if ( ! empty( $media_dims ) ) {
+		$item .= '<p><strong>' . __( 'Dimensions:' ) . "</strong> $media_dims</p>\n";
+	}
+
+	$item .= "</td></tr>\n";
+
+	$item .= "
+		</thead>
+		<tbody>
+		<tr><td colspan='2' class='imgedit-response' id='imgedit-response-$post->ID'></td></tr>\n
+		<tr><td style='display:none' colspan='2' class='image-editor' id='image-editor-$post->ID'></td></tr>\n
+		<tr><td colspan='2'><p class='media-types media-types-required-info'>" .
+			/* translators: %s: Asterisk symbol (*). */
+			sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
+		"</p></td></tr>\n";
+
+	$defaults = array(
+		'input'      => 'text',
+		'required'   => false,
+		'value'      => '',
+		'extra_rows' => array(),
+	);
+
+	if ( $parsed_args['send'] ) {
+		$parsed_args['send'] = get_submit_button( __( 'Insert into Post' ), '', "send[$attachment_id]", false );
+	}
+
+	$delete = empty( $parsed_args['delete'] ) ? '' : $parsed_args['delete'];
+	if ( $delete && current_user_can( 'delete_post', $attachment_id ) ) {
+		if ( ! EMPTY_TRASH_DAYS ) {
+			$delete = "<a href='" . wp_nonce_url( "post.php?action=delete&amp;post=$attachment_id", 'delete-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='delete-permanently'>" . __( 'Delete Permanently' ) . '</a>';
+		} elseif ( ! MEDIA_TRASH ) {
+			$delete = "<a href='#' class='del-link' onclick=\"document.getElementById('del_attachment_$attachment_id').style.display='block';return false;\">" . __( 'Delete' ) . "</a>
+				<div id='del_attachment_$attachment_id' class='del-attachment' style='display:none;'>" .
+				/* translators: %s: File name. */
+				'<p>' . sprintf( __( 'You are about to delete %s.' ), '<strong>' . $filename . '</strong>' ) . "</p>
+				<a href='" . wp_nonce_url( "post.php?action=delete&amp;post=$attachment_id", 'delete-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='button'>" . __( 'Continue' ) . "</a>
+				<a href='#' class='button' onclick=\"this.parentNode.style.display='none';return false;\">" . __( 'Cancel' ) . '</a>
+				</div>';
+		} else {
+			$delete = "<a href='" . wp_nonce_url( "post.php?action=trash&amp;post=$attachment_id", 'trash-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='delete'>" . __( 'Move to Trash' ) . "</a>
+			<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>';
+		}
+	} else {
+		$delete = '';
+	}
+
+	$thumbnail       = '';
+	$calling_post_id = 0;
+
+	if ( isset( $_GET['post_id'] ) ) {
+		$calling_post_id = absint( $_GET['post_id'] );
+	} elseif ( isset( $_POST ) && count( $_POST ) ) {// Like for async-upload where $_GET['post_id'] isn't set
+		$calling_post_id = $post->post_parent;
+	}
+
+	if ( 'image' == $type && $calling_post_id && current_theme_supports( 'post-thumbnails', get_post_type( $calling_post_id ) )
+		&& post_type_supports( get_post_type( $calling_post_id ), 'thumbnail' ) && get_post_thumbnail_id( $calling_post_id ) != $attachment_id ) {
+
+		$calling_post             = get_post( $calling_post_id );
+		$calling_post_type_object = get_post_type_object( $calling_post->post_type );
+
+		$ajax_nonce = wp_create_nonce( "set_post_thumbnail-$calling_post_id" );
+		$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>';
+	}
+
+	if ( ( $parsed_args['send'] || $thumbnail || $delete ) && ! isset( $form_fields['buttons'] ) ) {
+		$form_fields['buttons'] = array( 'tr' => "\t\t<tr class='submit'><td></td><td class='savesend'>" . $parsed_args['send'] . " $thumbnail $delete</td></tr>\n" );
+	}
+
+	$hidden_fields = array();
+
+	foreach ( $form_fields as $id => $field ) {
+		if ( $id[0] == '_' ) {
+			continue;
+		}
+
+		if ( ! empty( $field['tr'] ) ) {
+			$item .= $field['tr'];
+			continue;
+		}
+
+		$field = array_merge( $defaults, $field );
+		$name  = "attachments[$attachment_id][$id]";
+
+		if ( $field['input'] == 'hidden' ) {
+			$hidden_fields[ $name ] = $field['value'];
+			continue;
+		}
+
+		$required      = $field['required'] ? '<span class="required">*</span>' : '';
+		$required_attr = $field['required'] ? ' required' : '';
+		$class         = $id;
+		$class        .= $field['required'] ? ' form-required' : '';
+
+		$item .= "\t\t<tr class='$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'>";
+
+		if ( ! empty( $field[ $field['input'] ] ) ) {
+			$item .= $field[ $field['input'] ];
+		} elseif ( $field['input'] == 'textarea' ) {
+			if ( 'post_content' == $id && user_can_richedit() ) {
+				// Sanitize_post() skips the post_content when user_can_richedit.
+				$field['value'] = htmlspecialchars( $field['value'], ENT_QUOTES );
+			}
+			// Post_excerpt is already escaped by sanitize_post() in get_attachment_fields_to_edit().
+			$item .= "<textarea id='$name' name='$name'{$required_attr}>" . $field['value'] . '</textarea>';
+		} else {
+			$item .= "<input type='text' class='text' id='$name' name='$name' value='" . esc_attr( $field['value'] ) . "'{$required_attr} />";
+		}
+
+		if ( ! empty( $field['helps'] ) ) {
+			$item .= "<p class='help'>" . join( "</p>\n<p class='help'>", array_unique( (array) $field['helps'] ) ) . '</p>';
+		}
+		$item .= "</td>\n\t\t</tr>\n";
+
+		$extra_rows = array();
+
+		if ( ! empty( $field['errors'] ) ) {
+			foreach ( array_unique( (array) $field['errors'] ) as $error ) {
+				$extra_rows['error'][] = $error;
+			}
+		}
+
+		if ( ! empty( $field['extra_rows'] ) ) {
+			foreach ( $field['extra_rows'] as $class => $rows ) {
+				foreach ( (array) $rows as $html ) {
+					$extra_rows[ $class ][] = $html;
+				}
+			}
+		}
+
+		foreach ( $extra_rows as $class => $rows ) {
+			foreach ( $rows as $html ) {
+				$item .= "\t\t<tr><td></td><td class='$class'>$html</td></tr>\n";
+			}
+		}
+	}
+
+	if ( ! empty( $form_fields['_final'] ) ) {
+		$item .= "\t\t<tr class='final'><td colspan='2'>{$form_fields['_final']}</td></tr>\n";
+	}
+
+	$item .= "\t</tbody>\n";
+	$item .= "\t</table>\n";
+
+	foreach ( $hidden_fields as $name => $value ) {
+		$item .= "\t<input type='hidden' name='$name' id='$name' value='" . esc_attr( $value ) . "' />\n";
+	}
+
+	if ( $post->post_parent < 1 && isset( $_REQUEST['post_id'] ) ) {
+		$parent      = (int) $_REQUEST['post_id'];
+		$parent_name = "attachments[$attachment_id][post_parent]";
+		$item       .= "\t<input type='hidden' name='$parent_name' id='$parent_name' value='$parent' />\n";
+	}
+
+	return $item;
+}
+
+/**
+ * @since 3.5.0
+ *
+ * @param int   $attachment_id
+ * @param array $args
+ * @return array
+ */
+function get_compat_media_markup( $attachment_id, $args = null ) {
+	$post = get_post( $attachment_id );
+
+	$default_args = array(
+		'errors'   => null,
+		'in_modal' => false,
+	);
+
+	$user_can_edit = current_user_can( 'edit_post', $attachment_id );
+
+	$args = wp_parse_args( $args, $default_args );
+
+	/** This filter is documented in wp-admin/includes/media.php */
+	$args = apply_filters( 'get_media_item_args', $args );
+
+	$form_fields = array();
+
+	if ( $args['in_modal'] ) {
+		foreach ( get_attachment_taxonomies( $post ) as $taxonomy ) {
+			$t = (array) get_taxonomy( $taxonomy );
+
+			if ( ! $t['public'] || ! $t['show_ui'] ) {
+				continue;
+			}
+
+			if ( empty( $t['label'] ) ) {
+				$t['label'] = $taxonomy;
+			}
+
+			if ( empty( $t['args'] ) ) {
+				$t['args'] = array();
+			}
+
+			$terms = get_object_term_cache( $post->ID, $taxonomy );
+
+			if ( false === $terms ) {
+				$terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
+			}
+
+			$values = array();
+
+			foreach ( $terms as $term ) {
+				$values[] = $term->slug;
+			}
+
+			$t['value']    = join( ', ', $values );
+			$t['taxonomy'] = true;
+
+			$form_fields[ $taxonomy ] = $t;
+		}
+	}
+
+	// Merge default fields with their errors, so any key passed with the error (e.g. 'error', 'helps', 'value') will replace the default
+	// The recursive merge is easily traversed with array casting: foreach ( (array) $things as $thing )
+	$form_fields = array_merge_recursive( $form_fields, (array) $args['errors'] );
+
+	/** This filter is documented in wp-admin/includes/media.php */
+	$form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post );
+
+	unset(
+		$form_fields['image-size'],
+		$form_fields['align'],
+		$form_fields['image_alt'],
+		$form_fields['post_title'],
+		$form_fields['post_excerpt'],
+		$form_fields['post_content'],
+		$form_fields['url'],
+		$form_fields['menu_order'],
+		$form_fields['image_url']
+	);
+
+	/** This filter is documented in wp-admin/includes/media.php */
+	$media_meta = apply_filters( 'media_meta', '', $post );
+
+	$defaults = array(
+		'input'         => 'text',
+		'required'      => false,
+		'value'         => '',
+		'extra_rows'    => array(),
+		'show_in_edit'  => true,
+		'show_in_modal' => true,
+	);
+
+	$hidden_fields = array();
+
+	$item = '';
+
+	foreach ( $form_fields as $id => $field ) {
+		if ( $id[0] == '_' ) {
+			continue;
+		}
+
+		$name    = "attachments[$attachment_id][$id]";
+		$id_attr = "attachments-$attachment_id-$id";
+
+		if ( ! empty( $field['tr'] ) ) {
+			$item .= $field['tr'];
+			continue;
+		}
+
+		$field = array_merge( $defaults, $field );
+
+		if ( ( ! $field['show_in_edit'] && ! $args['in_modal'] ) || ( ! $field['show_in_modal'] && $args['in_modal'] ) ) {
+			continue;
+		}
+
+		if ( $field['input'] == 'hidden' ) {
+			$hidden_fields[ $name ] = $field['value'];
+			continue;
+		}
+
+		$readonly      = ! $user_can_edit && ! empty( $field['taxonomy'] ) ? " readonly='readonly' " : '';
+		$required      = $field['required'] ? '<span class="required">*</span>' : '';
+		$required_attr = $field['required'] ? ' required' : '';
+		$class         = 'compat-field-' . $id;
+		$class        .= $field['required'] ? ' form-required' : '';
+
+		$item .= "\t\t<tr class='$class'>";
+		$item .= "\t\t\t<th scope='row' class='label'><label for='$id_attr'><span class='alignleft'>{$field['label']}</span>$required<br class='clear' /></label>";
+		$item .= "</th>\n\t\t\t<td class='field'>";
+
+		if ( ! empty( $field[ $field['input'] ] ) ) {
+			$item .= $field[ $field['input'] ];
+		} elseif ( $field['input'] == 'textarea' ) {
+			if ( 'post_content' == $id && user_can_richedit() ) {
+				// sanitize_post() skips the post_content when user_can_richedit.
+				$field['value'] = htmlspecialchars( $field['value'], ENT_QUOTES );
+			}
+			$item .= "<textarea id='$id_attr' name='$name'{$required_attr}>" . $field['value'] . '</textarea>';
+		} else {
+			$item .= "<input type='text' class='text' id='$id_attr' name='$name' value='" . esc_attr( $field['value'] ) . "' $readonly{$required_attr} />";
+		}
+
+		if ( ! empty( $field['helps'] ) ) {
+			$item .= "<p class='help'>" . join( "</p>\n<p class='help'>", array_unique( (array) $field['helps'] ) ) . '</p>';
+		}
+
+		$item .= "</td>\n\t\t</tr>\n";
+
+		$extra_rows = array();
+
+		if ( ! empty( $field['errors'] ) ) {
+			foreach ( array_unique( (array) $field['errors'] ) as $error ) {
+				$extra_rows['error'][] = $error;
+			}
+		}
+
+		if ( ! empty( $field['extra_rows'] ) ) {
+			foreach ( $field['extra_rows'] as $class => $rows ) {
+				foreach ( (array) $rows as $html ) {
+					$extra_rows[ $class ][] = $html;
+				}
+			}
+		}
+
+		foreach ( $extra_rows as $class => $rows ) {
+			foreach ( $rows as $html ) {
+				$item .= "\t\t<tr><td></td><td class='$class'>$html</td></tr>\n";
+			}
+		}
+	}
+
+	if ( ! empty( $form_fields['_final'] ) ) {
+		$item .= "\t\t<tr class='final'><td colspan='2'>{$form_fields['_final']}</td></tr>\n";
+	}
+
+	if ( $item ) {
+		$item = '<p class="media-types media-types-required-info">' .
+			/* translators: %s: Asterisk symbol (*). */
+			sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
+			'</p>' .
+			'<table class="compat-attachment-fields">' . $item . '</table>';
+	}
+
+	foreach ( $hidden_fields as $hidden_field => $value ) {
+		$item .= '<input type="hidden" name="' . esc_attr( $hidden_field ) . '" value="' . esc_attr( $value ) . '" />' . "\n";
+	}
+
+	if ( $item ) {
+		$item = '<input type="hidden" name="attachments[' . $attachment_id . '][menu_order]" value="' . esc_attr( $post->menu_order ) . '" />' . $item;
+	}
+
+	return array(
+		'item' => $item,
+		'meta' => $media_meta,
+	);
+}
+
+/**
+ * Outputs the legacy media upload header.
+ *
+ * @since 2.5.0
+ */
+function media_upload_header() {
+	$post_id = isset( $_REQUEST['post_id'] ) ? intval( $_REQUEST['post_id'] ) : 0;
+
+	echo '<script type="text/javascript">post_id = ' . $post_id . ';</script>';
+
+	if ( empty( $_GET['chromeless'] ) ) {
+		echo '<div id="media-upload-header">';
+		the_media_upload_tabs();
+		echo '</div>';
+	}
+}
+
+/**
+ * Outputs the legacy media upload form.
+ *
+ * @since 2.5.0
+ *
+ * @global string $type
+ * @global string $tab
+ * @global bool   $is_IE
+ * @global bool   $is_opera
+ *
+ * @param array $errors
+ */
+function media_upload_form( $errors = null ) {
+	global $type, $tab, $is_IE, $is_opera;
+
+	if ( ! _device_can_upload() ) {
+		echo '<p>' . sprintf(
+			/* translators: %s: https://apps.wordpress.org/ */
+			__( '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.' ),
+			'https://apps.wordpress.or