/**
* Return a single defined density label.
*
* @since 0.1.0
* @param string $density The density value.
* @return string
*/
function ev_get_density_label($density)
{
$densities = ev_get_densities();
if (isset($densities[$density])) {
return $densities[$density];
}
return false;
}
/**
* Return the markup for an image specifying a different srcset parameter according
* to the available densities.
*
* @since 1.0.0
* @param array $data The image data.
* @param string $type The image size.
* @param string $breakpoint The breakpoint name.
* @return string
*/
function ev_get_density_image($data, $size = 'full', $breakpoint = 'desktop')
{
if (empty($data[$breakpoint]['1']['id'])) {
return '';
}
$src = wp_get_attachment_image_url($data[$breakpoint]['1']['id'], $size);
if (empty($src)) {
return '';
}
$srcset = array();
$densities = ev_get_densities();
array_shift($densities);
foreach ($densities as $density => $label) {
$density_src = wp_get_attachment_image_url($data[$breakpoint][$density]['id'], $size);
if (!empty($density_src)) {
$srcset[] = $density_src . ' ' . $density . 'x';
}
}
$args = array();
if (!empty($srcset)) {
$args['srcset'] = esc_attr(implode(', ', $srcset));
}
return wp_get_attachment_image($data[$breakpoint]['1']['id'], $size, false, $args);
}
<?php
$value = $field->value();
$densities = ev_get_densities();
$breakpoints = ev_get_breakpoints();
$thumb_size = $field->config('thumb_size');
$multiple = $field->config('multiple');
$sortable = $field->config('sortable');
$config_density = $field->config('density');
$config_breakpoints = $field->config('breakpoints');
$manage_densities = $config_density !== false;
$manage_breakpoints = $config_breakpoints !== false;
$image_densities = array();
$image_breakpoints = array();
if ($manage_breakpoints) {
if (is_array($config_breakpoints)) {
foreach ($config_breakpoints as $breakpoint) {
if (isset($breakpoints[$breakpoint])) {
$image_breakpoints[$breakpoint] = $breakpoints[$breakpoint];
}
}
} else {
$image_breakpoints = $breakpoints;
}
} else {
$image_breakpoints = array('desktop' => $breakpoints['desktop']);
}
if ($manage_densities) {
if (is_array($config_density)) {
foreach ($config_density as $density) {
if (isset($densities[$density])) {