-
-
Save chrisdempsey/1defbc65343e9ef1e618beb3c2bc8c95 to your computer and use it in GitHub Desktop.
A snippet that creates a <picture></picture> element with webp & jpg sources using pThumb with different media sizes depending on layout for bootstrap
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<?php | |
$img_src = $modx->getOption('src', $scriptProperties); | |
$img_alt = $modx->getOption('alt', $scriptProperties); | |
$img_width = $modx->getOption('width', $scriptProperties,640); | |
$is_lazy = $modx->getOption('lazy', $scriptProperties, false); | |
$img_class = $modx->getOption('class', $scriptProperties, 'img-fluid'); | |
$colums = $modx->getOption('cols', $scriptProperties, '{"xs":12,"sm":12,"md":8,"lg":6,"xl":6}'); | |
$img_type = $modx->getOption('type', $scriptProperties, 'jpg'); | |
$dataAttr = ''; | |
if ($is_lazy) { | |
$dataAttr = 'data-'; | |
} | |
// IF SVG don't pass to pThumbs but return the image | |
if ($img_type == 'svg') { | |
$output_img = '<img ' . $dataAttr . 'src="' . $img_src . '" alt="' . $img_alt . '" class="' . $img_class . '" width="' . $img_width . '">'; | |
return $output_img; | |
} | |
$col_count = 12; | |
$source_data = array( | |
"xs" => array( | |
"width" => 420, | |
"media" => '(max-width: 419px)' | |
), | |
"sm" => array( | |
"width" => 576, | |
"media" => '(min-width: 420px) and (max-width:575px)' | |
), | |
"md" => array( | |
"width" => 768, | |
"media" => '(min-width: 576px) and (max-width:767px)' | |
), | |
"lg" => array( | |
"width" => 992, | |
"media" => '(min-width: 767px) and (max-width:991px)' | |
), | |
"xl" => array( | |
"width" => 1440, | |
"media" => '(min-width: 991px)' | |
) | |
); | |
// Create size array | |
$sizes = json_decode($colums); | |
$output = '<picture>'; | |
foreach ($sizes as $size_col => $size) { | |
$calc_width = $col_count / $size; | |
$set_img_width = $source_data[$size_col]['width'] / $calc_width; | |
// WEBP SOURCE | |
$output .= '<source ' . $dataAttr . 'srcset="' . $modx->runSnippet("phpthumbof", array('input' => $img_src, 'options' => "w=$set_img_width&far=1&q=98&f=webp")) . ' ' . $set_img_width . 'w' . '" media="' . $source_data[$size_col]['media'] . '" type="image/webp">'; | |
// JPG/ PNG SOURCE | |
$output .= '<source ' . $dataAttr . 'srcset="' . $modx->runSnippet("phpthumbof", array('input' => $img_src, 'options' => "w=$set_img_width&far=1&q=98&f=$img_type")) . ' ' . $set_img_width . 'w' . '" media="' . $source_data[$size_col]['media'] . '" type="image/'. $img_type .'">'; | |
} | |
$output .= '<img ' . $dataAttr . 'src="' . $modx->runSnippet("phpthumbof", array('input' => $img_src, 'options' => "w=$img_width&far=1&q=98&f=$img_type")) . '" alt="' . $img_alt . '" class="' . $img_class . '">'; | |
$output .= '</picture>'; | |
return $output; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Direct fork from gist by Nathanael McMillan
https://gist.github.com/NatemcM/92d31822274b0074912383aac1b32269