media_upload_form( array $errors = null )

function media_upload_form( $errors = null ) {
	global $type, $tab, $is_IE, $is_opera;

	if ( ! _device_can_upload() ) {
		echo '<p>' . sprintf( __('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.org/' ) . '</p>';
		return;
	}

	$upload_action_url = admin_url('async-upload.php');
	$post_id = isset($_REQUEST['post_id']) ? intval($_REQUEST['post_id']) : 0;
	$_type = isset($type) ? $type : '';
	$_tab = isset($tab) ? $tab : '';

	$max_upload_size = wp_max_upload_size();
	if ( ! $max_upload_size ) {
		$max_upload_size = 0;
	}
?>

<div id="media-upload-notice"><?php

	if (isset($errors['upload_notice']) )
		echo $errors['upload_notice'];

?></div>
<div id="media-upload-error"><?php

	if (isset($errors['upload_error']) && is_wp_error($errors['upload_error']))
		echo $errors['upload_error']->get_error_message();

?></div>
<?php
if ( is_multisite() && !is_upload_space_available() ) {
	/**
	 * Fires when an upload will exceed the defined upload space quota for a network site.
	 *
	 * @since WP-3.5.0
	 */
	do_action( 'upload_ui_over_quota' );
	return;
}

/**
 * Fires just before the legacy (pre-3.5.0) upload interface is loaded.
 *
 * @since WP-2.6.0
 */
do_action( 'pre-upload-ui' );

$post_params = array(
	"post_id" => $post_id,
	"_wpnonce" => wp_create_nonce('media-form'),
	"type" => $_type,
	"tab" => $_tab,
	"short" => "1",
);

/**
 * Filters the media upload post parameters.
 *
 * @since WP-3.1.0 As 'swfupload_post_params'
 * @since WP-3.3.0
 *
 * @param array $post_params An array of media upload parameters used by Plupload.
 */
$post_params = apply_filters( 'upload_post_params', $post_params );

/*
 * Since WP-4.9 the `runtimes` setting is hardcoded in our version of Plupload to `html5,html4`,
 * and the `flash_swf_url` and `silverlight_xap_url` are not used.
 */
$plupload_init = array(
	'browse_button'       => 'plupload-browse-button',
	'container'           => 'plupload-upload-ui',
	'drop_element'        => 'drag-drop-area',
	'file_data_name'      => 'async-upload',
	'url'                 => $upload_action_url,
	'filters' => array(
		'max_file_size'   => $max_upload_size . 'b',
	),
	'multipart_params'    => $post_params,
);

// Currently only iOS Safari supports multiple files uploading but iOS 7.x has a bug that prevents uploading of videos
// when enabled. See https://core.trac.wordpress.org/ticket/29602.
if ( wp_is_mobile() && strpos( $_SERVER['HTTP_USER_AGENT'], 'OS 7_' ) !== false &&
	strpos( $_SERVER['HTTP_USER_AGENT'], 'like Mac OS X' ) !== false ) {

	$plupload_init['multi_selection'] = false;
}

/**
 * Filters the default Plupload settings.
 *
 * @since WP-3.3.0
 *
 * @param array $plupload_init An array of default settings used by Plupload.
 */
$plupload_init = apply_filters( 'plupload_init', $plupload_init );

?>

<script type="text/javascript">
<?php
// Verify size is an int. If not return default value.
$large_size_h = absint( get_option('large_size_h') );
if( !$large_size_h )
	$large_size_h = 1024;
$large_size_w = absint( get_option('large_size_w') );
if( !$large_size_w )
	$large_size_w = 1024;
?>
var resize_height = <?php echo $large_size_h; ?>, resize_width = <?php echo $large_size_w; ?>,
wpUploaderInit = <?php echo wp_json_encode( $plupload_init ); ?>;
</script>

<div id="plupload-upload-ui" class="hide-if-no-js">
<?php
/**
 * Fires before the upload interface loads.
 *
 * @since WP-2.6.0 As 'pre-flash-upload-ui'
 * @since WP-3.3.0
 */
do_action( 'pre-plupload-upload-ui' ); ?>
<div id="drag-drop-area">
	<div class="drag-drop-inside">
	<p class="drag-drop-info"><?php _e('Drop files here'); ?></p>
	<p><?php _ex('or', 'Uploader: Drop files here - or - Select Files'); ?></p>
	<p class="drag-drop-buttons"><input id="plupload-browse-button" type="button" value="<?php esc_attr_e('Select Files'); ?>" class="button" /></p>
	</div>
</div>
<?php
/**
 * Fires after the upload interface loads.
 *
 * @since WP-2.6.0 As 'post-flash-upload-ui'
 * @since WP-3.3.0
 */
do_action( 'post-plupload-upload-ui' ); ?>
</div>

<div id="html-upload-ui" class="hide-if-js">
	<?php
	/**
	 * Fires before the upload button in the media upload interface.
	 *
	 * @since WP-2.6.0
	 */
	do_action( 'pre-html-upload-ui' );
	?>
	<p id="async-upload-wrap">
		<label class="screen-reader-text" for="async-upload"><?php _e('Upload'); ?></label>
		<input type="file" name="async-upload" id="async-upload" />
		<?php submit_button( __( 'Upload' ), 'primary', 'html-upload', false ); ?>
		<a href="#" onclick="try{top.tb_remove();}catch(e){}; return false;"><?php _e('Cancel'); ?></a>
	</p>
	<div class="clear"></div>
<?php
/**
 * Fires after the upload button in the media upload interface.
 *
 * @since WP-2.6.0
 */
do_action( 'post-html-upload-ui' );
?>
</div>

<p class="max-upload-size"><?php printf( __( 'Maximum upload file size: %s.' ), esc_html( size_format( $max_upload_size ) ) ); ?></p>
<?php

	/**
	 * Fires on the post upload UI screen.
	 *
	 * Legacy (pre-3.5.0) media workflow hook.
	 *
	 * @since WP-2.6.0
	 */
	do_action( 'post-upload-ui' );
}