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function is not described

Custom_Image_Header::step_3() WP 2.1.0

Display third step of custom header image page.

This is a method of the class: Custom_Image_Header

Hooks from the method
Return

Null. Nothing.

Usage

$Custom_Image_Header = new Custom_Image_Header();
$var = $Custom_Image_Header->step_3();

Changelog

Since 2.1.0 Introduced.
Since 4.4.0 Switched to using wp_get_attachment_url() instead of the guid for retrieving the header image URL.

Code of Custom Image Header::step 3: wp-admin/includes/class-custom-image-header.php WP 5.4.1

<?php
public function step_3() {
	check_admin_referer( 'custom-header-crop-image' );

	if ( ! current_theme_supports( 'custom-header', 'uploads' ) ) {
		wp_die(
			'<h1>' . __( 'Something went wrong.' ) . '</h1>' .
			'<p>' . __( 'The current theme does not support uploading a custom header image.' ) . '</p>',
			403
		);
	}

	if ( ! empty( $_POST['skip-cropping'] ) && ! ( current_theme_supports( 'custom-header', 'flex-height' ) || current_theme_supports( 'custom-header', 'flex-width' ) ) ) {
		wp_die(
			'<h1>' . __( 'Something went wrong.' ) . '</h1>' .
			'<p>' . __( 'The current theme does not support a flexible sized header image.' ) . '</p>',
			403
		);
	}

	if ( $_POST['oitar'] > 1 ) {
		$_POST['x1']     = $_POST['x1'] * $_POST['oitar'];
		$_POST['y1']     = $_POST['y1'] * $_POST['oitar'];
		$_POST['width']  = $_POST['width'] * $_POST['oitar'];
		$_POST['height'] = $_POST['height'] * $_POST['oitar'];
	}

	$attachment_id = absint( $_POST['attachment_id'] );
	$original      = get_attached_file( $attachment_id );

	$dimensions = $this->get_header_dimensions(
		array(
			'height' => $_POST['height'],
			'width'  => $_POST['width'],
		)
	);
	$height     = $dimensions['dst_height'];
	$width      = $dimensions['dst_width'];

	if ( empty( $_POST['skip-cropping'] ) ) {
		$cropped = wp_crop_image( $attachment_id, (int) $_POST['x1'], (int) $_POST['y1'], (int) $_POST['width'], (int) $_POST['height'], $width, $height );
	} elseif ( ! empty( $_POST['create-new-attachment'] ) ) {
		$cropped = _copy_image_file( $attachment_id );
	} else {
		$cropped = get_attached_file( $attachment_id );
	}

	if ( ! $cropped || is_wp_error( $cropped ) ) {
		wp_die( __( 'Image could not be processed. Please go back and try again.' ), __( 'Image Processing Error' ) );
	}

	/** This filter is documented in wp-admin/includes/class-custom-image-header.php */
	$cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication.

	$object = $this->create_attachment_object( $cropped, $attachment_id );

	if ( ! empty( $_POST['create-new-attachment'] ) ) {
		unset( $object['ID'] );
	}

	// Update the attachment.
	$attachment_id = $this->insert_attachment( $object, $cropped );

	$url = wp_get_attachment_url( $attachment_id );
	$this->set_header_image( compact( 'url', 'attachment_id', 'width', 'height' ) );

	// Cleanup.
	$medium = str_replace( wp_basename( $original ), 'midsize-' . wp_basename( $original ), $original );
	if ( file_exists( $medium ) ) {
		wp_delete_file( $medium );
	}

	if ( empty( $_POST['create-new-attachment'] ) && empty( $_POST['skip-cropping'] ) ) {
		wp_delete_file( $original );
	}

	return $this->finished();
}