Current File : /var/www/wordpress/wp-content/plugins/oxygen/subplugins/breakdance-elements/macros/srcset.twig
{% macro srcset(source, sizes) %}
{% set imgs = [] %}
{% set descriptor = 'w' %}
{% set sourceAspectRatio = source.height / source.width %}
{# The maximum image width to be included in the 'srcset'. #}
{% set maxImageWidth = 2048 %}
{# Loop through available images. #}
{% for size in sizes %}
{% set sizeAspectRatio = size.height / size.width|default(1) %}
{% set matchesRatio = sizeAspectRatio|round(1, 'floor') == sourceAspectRatio|round(1, 'floor') %}
{# Filters out images that are wider than maxImageWidth #}
{% if size.width < maxImageWidth and matchesRatio %}
{% set imgs = imgs|merge([
size.url ~ ' ' ~ size.width ~ descriptor
]) %}
{% endif %}
{% endfor %}
{% set srcset = imgs|join(', ') %}
{#
Output img attributes
Only return a 'srcset' value if there is more than one size.
#}
{% if sizes|length > 1 and not size.placeholder %}
srcset="{{ srcset }}" sizes="(max-width: {{ source.width }}px) 100vw, {{ source.width }}px"
{% endif %}
{% endmacro %}