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<?php
/**
* Genesis Framework.
*
* WARNING: This file is part of the core Genesis Framework. DO NOT edit this file under any circumstances.
* Please do all modifications in the form of a child theme.
*
* @package Genesis\Images
* @author StudioPress
* @license GPL-2.0-or-later
* @link https://my.studiopress.com/themes/genesis/
*/
/**
* Pull an attachment ID from a post, if one exists.
*
* @since 1.0.0
*
* @param int $index Optional. Index of which image to return from a post. Default is 0.
* @param int $post_id Optional. Post ID. Default is `get_the_ID()`.
* @return int|bool Image ID, or `false` if image with given index does not exist.
*/
function genesis_get_image_id( $index = 0, $post_id = null ) {
$image_ids = array_keys(
get_children(
[
'post_parent' => $post_id ?: get_the_ID(),
'post_type' => 'attachment',
'post_mime_type' => 'image',
'orderby' => 'menu_order',
'order' => 'ASC',
]
)
);
if ( isset( $image_ids[ $index ] ) ) {
return $image_ids[ $index ];
}
return false;
}
/**
* Return an image pulled from the media gallery.
*
* Supported $args keys are:
*
* - format - string, default is 'html'
* - size - string, default is 'full'
* - num - integer, default is 0
* - attr - string, default is ''
* - fallback - mixed, default is 'first-attached'
*
* Applies `genesis_get_image_default_args`, `genesis_pre_get_image` and `genesis_get_image` filters.
*
* @since 1.0.0
*
* @param array|string $args Optional. Image query arguments. Default is empty array.
* @return string|bool Return image element HTML, URL of image, or `false`.
*/
function genesis_get_image( $args = [] ) {
$defaults = [
'post_id' => null,
'format' => 'html',
'size' => 'full',
'num' => 0,
'attr' => '',
'fallback' => 'first-attached',
'context' => '',
];
/**
* A filter on the default parameters used by `genesis_get_image()`.
*
* @since unknown
*/
$defaults = apply_filters( 'genesis_get_image_default_args', $defaults, $args );
$args = wp_parse_args( $args, $defaults );
// Allow child theme to short-circuit this function.
$pre = apply_filters( 'genesis_pre_get_image', false, $args, get_post() );
if ( false !== $pre ) {
return $pre;
}
// If post thumbnail (native WP) exists, use its id.
if ( 0 === $args['num'] && has_post_thumbnail( $args['post_id'] ) ) {
$id = get_post_thumbnail_id( $args['post_id'] );
} elseif ( 'first-attached' === $args['fallback'] ) {
// Else if the first (default) image attachment is the fallback, use its id.
$id = genesis_get_image_id( $args['num'], $args['post_id'] );
} elseif ( is_int( $args['fallback'] ) ) {
// Else if fallback id is supplied, use it.
$id = $args['fallback'];
}
// If we have an id, get the HTML and URL.
if ( isset( $id ) ) {
$html = wp_get_attachment_image( $id, $args['size'], false, $args['attr'] );
list( $url ) = wp_get_attachment_image_src( $id, $args['size'], false );
} elseif ( is_array( $args['fallback'] ) ) {
// Else if fallback HTML and URL exist, use them.
$id = 0;
$html = $args['fallback']['html'];
$url = $args['fallback']['url'];
} else {
// No image.
return false;
}
$url = ! empty( $url ) ? $url : '';
// Source path, relative to the root.
$src = str_replace( home_url(), '', $url );
// Determine output.
if ( 'html' === mb_strtolower( $args['format'] ) ) {
$output = $html;
} elseif ( 'url' === mb_strtolower( $args['format'] ) ) {
$output = $url;
} else {
$output = $src;
}
// Return false if $url is blank.
if ( empty( $url ) ) {
$output = false;
}
// Return data, filtered.
return apply_filters( 'genesis_get_image', $output, $args, $id, $html, $url, $src );
}
/**
* Echo an image pulled from the media gallery.
*
* Supported $args keys are:
*
* - format - string, default is 'html', may be 'url'
* - size - string, default is 'full'
* - num - integer, default is 0
* - attr - string, default is ''
*
* @since 1.0.0
*
* @param array|string $args Optional. Image query arguments. Default is empty array.
* @return null|false Returns `false` if URL is empty.
*/
function genesis_image( $args = [] ) {
$image = genesis_get_image( $args );
if ( $image ) {
// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
echo $image;
return null;
}
return false;
}
/**
* Return all registered image sizes arrays, including the standard sizes.
*
* Return a two-dimensional array of standard and additionally registered image sizes, with width, height and crop sub-keys.
*
* Here, the standard sizes have their sub-keys populated by pulling from the options saved in the database.
*
* @since 1.0.2
*
* @return array Two-dimensional, with `width`, `height` and `crop` sub-keys.
*/
function genesis_get_image_sizes() {
global $_wp_additional_image_sizes;
/**
* Allows controlling the image sizes before running the get_intermediate_image_sizes() logic.
*
* The return value must be false or a two-dimensional array with `width`, `height`, and `crop` subkeys.
*
* @param bool|array $pre False or genesis_get_image_sizes compatible array.
*/
$pre = apply_filters( 'genesis_pre_get_image_sizes', false );
if ( $pre ) {
return $pre;
}
$sizes = [];
foreach ( get_intermediate_image_sizes() as $size ) {
if ( isset( $_wp_additional_image_sizes[ $size ] ) ) {
$sizes[ $size ] = [
'width' => absint( $_wp_additional_image_sizes[ $size ]['width'] ),
'height' => absint( $_wp_additional_image_sizes[ $size ]['height'] ),
'crop' => $_wp_additional_image_sizes[ $size ]['crop'],
];
} else {
$sizes[ $size ] = [
'width' => absint( get_option( "{$size}_size_w" ) ),
'height' => absint( get_option( "{$size}_size_h" ) ),
'crop' => (bool) get_option( "{$size}_crop" ),
];
}
}
/**
* Allows filtering the genesis_get_image_sizes() output.
*
* @param array $sizes Two-dimensional, with `width`, `height` and `crop` sub-keys.
*/
return (array) apply_filters( 'genesis_get_image_sizes', $sizes );
}
/**
* Callback for Customizer featured image archive size.
*
* @since 2.1.0
*
* @return array List of image sizes.
*/
function genesis_get_image_sizes_for_customizer() {
$sizes = [];
foreach ( (array) genesis_get_image_sizes() as $name => $size ) {
$sizes[ $name ] = $name . ' (' . absint( $size['width'] ) . ' × ' . absint( $size['height'] ) . ')';
}
return $sizes;
}
/**
* Is the singular featured image set to display on the current page?
*
* @since 3.1.0
*
* @return bool True if the singular featured image is hidden or will not display.
*/
function genesis_singular_image_hidden_on_current_page() {
$post_type = get_post_type();
$supports_singular_images = post_type_supports( $post_type, 'genesis-singular-images' );
$singular_images_enabled = genesis_get_option( "show_featured_image_{$post_type}" );
/**
* Prevents the “hide featured image” checkbox from appearing or functioning by returning false.
*
* @since 3.1.0
*
* @param bool $image_toggle_enabled True if featured image toggle is enabled, false otherwise.
*/
$image_toggle_enabled = apply_filters( 'genesis_singular_image_toggle_enabled', true );
if ( ! $supports_singular_images || ! $singular_images_enabled || ! $image_toggle_enabled ) {
return true;
}
return get_post_meta( get_queried_object_id(), '_genesis_hide_singular_image', true );
}
/**
* Which post types have singular images enabled and active?
*
* @since 3.1.0
*
* @return array The singular images with active 'genesis-singular-images' support.
*/
function genesis_post_types_with_singular_images_enabled() {
$result = [];
$types_with_support = get_post_types_by_support( 'genesis-singular-images' );
foreach ( $types_with_support as $type ) {
if ( genesis_get_option( "show_featured_image_{$type}", GENESIS_SETTINGS_FIELD, false ) ) {
$result[] = $type;
}
}
return $result;
}
add_filter( 'wp_get_attachment_image_attributes', 'genesis_image_loading', 10, 3 );
/**
* Filter the attributes of all images retrieved with `wp_get_attachment_image`, add `loading="lazy"` to enable lazy loading in Chrome.
*
* @since 3.2.0
*
* @param array $attr Attributes for the image markup.
*
* @return array The filtered $attr array.
*/
function genesis_image_loading( $attr ) {
if ( ! current_theme_supports( 'genesis-lazy-load-images' ) || function_exists( 'wp_lazy_loading_enabled' ) ) {
return $attr;
}
$attr['loading'] = 'lazy';
return $attr;
}