Bootstrap4 AppManifest

{strip}
{*
*   Template name: Bootstrap4 AppManifest
*   -------------------------------------
*
*   This section of the template is designed to output a valid web app manifest file.
*   The values here are automatically calculated based on the settings specified in
*   the "Bootstrap4 Settings" template and this file should need no manual adjustments.
*
*   Part of the CMSMS Bootstrap4 template by stom | stom66.co.uk
*}
    {process_pagedata}
    {content_type type="application/manifest+json"}
    {include file="cms_template:Bootstrap4 Settings"}
    {$content   = "{content}"}
    {$sizes     = [48, 72, 96, 144, 168, 192]}
    {$icons     = []}


    {foreach from=$sizes item=size}
        {$file_ext          = $manifest_icon|pathinfo:$smarty.const.PATHINFO_EXTENSION|lower}
        {if ($file_ext=="png")}
            {$icon.type         = "image/png"}
        {elseif ($file_ext=="jpg" || $file_ext=="jpeg")}
            {$icon.type         = "image/jpeg"}
        {elseif ($file_ext=="svg")}
            {$icon.type         = "image/svg+xml"}
        {elseif $file_ext=="webp"}
            {$icon.type         = "image/webp"}
        {/if}

        {if $file_ext == "svg"}
            {$icon.src      = $manifest_icon}
        {else}
            {CGSmartImage   assign=foo src=$manifest_icon notag=1 noembed=1 filter_resizetofit="{$size},{$size},#ff000,126"}
            {$icon.src      = $foo}
        {/if}

        {$icon.sizes        = "{$size}x{$size}"}
        {append var="icons" value=$icon}
    {/foreach}

    {$output.lang               = $page_lang}
    {$output.background_color   = $background_color}
    {$output.description        = $manifest_desc}
    {$output.display            = $manifest_display_style}
    {$output.name               = "{sitename}"}
    {$output.short_name         = "{sitename}"}
    {$output.start_url          = "{root_url}"}
    {$output.theme_color        = $theme_color}
    {$output.orientation        = $manifest_orientation}
    {$output.orientation        = $manifest_orientation}
    {$output.icons              = $icons}

    {$output|@json_encode nofilter}
{/strip}