{# uses cms block column count and all available thumbnails to determine the correct image size for the current viewport #}
{% if media.thumbnails|length > 0 %}
{% if columns and sizes is not defined %}
{# set image size for every viewport #}
{% set sizes = {
'xs': (shopware.theme.breakpoint.sm - 1) ~'px',
'sm': (shopware.theme.breakpoint.md - 1) ~'px',
'md': ((shopware.theme.breakpoint.lg - 1) / columns)|round(0, 'ceil') ~'px',
'lg': ((shopware.theme.breakpoint.xl - 1) / columns)|round(0, 'ceil') ~'px'
} %}
{# set image size for largest viewport depending on the cms block sizing mode (boxed or full-width) #}
{% if layout == 'full-width' %}
{% set container = 100 %}
{% set sizes = sizes|merge({ 'xl': (container / columns)|round(0, 'ceil') ~'vw'}) %}
{% else %}
{% set container = 1360 %}
{% set sizes = sizes|merge({ 'xl': (container / columns)|round(0, 'ceil') ~'px'}) %}
{% endif %}
{% endif %}
{% set thumbnails = media.thumbnails|sort|reverse %}
{# generate srcset with all available thumbnails #}
{% set srcsetValue %}{% apply spaceless %}
{{ media|sw_encode_media_url }} {{ thumbnails|first.width + 1 }}w, {% for thumbnail in thumbnails %}{{ thumbnail.url | sw_encode_url }} {{ thumbnail.width }}w{% if not loop.last %}, {% endif %}{% endfor %}
{% endapply %}{% endset %}
{# generate sizes #}
{% set sizesValue %}{% apply spaceless %}
{% set sizeFallback = 100 %}
{# set largest size depending on column count of cms block #}
{% if columns %}
{% set sizeFallback = (sizeFallback / columns)|round(0, 'ceil') %}
{% endif %}
{% if thumbnails|first.width > shopware.theme.breakpoint|reverse|first %}
{% set maxWidth = thumbnails|first.width %}
{% endif %}
{% for key, value in shopware.theme.breakpoint|reverse %}{% if maxWidth %}(max-width: {{ maxWidth }}px) and {% endif %}(min-width: {{ value }}px) {{ sizes[key] }}{% set maxWidth = value-1 %}{% if not loop.last %}, {% endif %}{% endfor %}, {{ sizeFallback }}vw
{% endapply %}{% endset %}
{% endif %}
<img src="{{ media|sw_encode_media_url }}"
{% if media.thumbnails|length > 0 %}
srcset="{{ srcsetValue }}"
{% if sizes['default'] %}
sizes="{{ sizes['default'] }}"
{% elseif sizes|length > 0 %}
sizes="{{ sizesValue }}"
{% endif %}
{% endif %}
{% for key, value in attributes %}{% if value != '' %} {{ key }}="{{ value }}"{% endif %}{% endfor %}
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