160 lines
3.0 KiB
PHP
160 lines
3.0 KiB
PHP
<?php
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namespace Blocksy;
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class SvgHandling {
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public function __construct() {
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add_filter(
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'wp_check_filetype_and_ext',
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function ($data = null, $file = null, $filename = null, $mimes = null) {
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if (strpos($filename, '.svg') !== false) {
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$data['type'] = 'image/svg+xml';
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$data['ext'] = 'svg';
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}
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return $data;
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},
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75, 4
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);
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add_filter('upload_mimes', function ($mimes) {
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$mimes['svg'] = 'image/svg+xml';
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return $mimes;
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});
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add_filter(
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'wp_get_attachment_image_src',
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function ($image, $attachment_id, $size, $icon) {
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if (! isset($attachment_id)) {
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return $image;
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}
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$mime = get_post_mime_type($attachment_id);
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if ('image/svg+xml' === $mime) {
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$default_height = 100;
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$default_width = 100;
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$maybe_file = get_attached_file($attachment_id);
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if ($maybe_file) {
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$dimensions = $this->svg_dimensions($maybe_file);
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if ($dimensions) {
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$default_height = $dimensions['height'];
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$default_width = $dimensions['width'];
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}
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}
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$image[2] = $default_height;
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$image[1] = $default_width;
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}
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return $image;
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},
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10, 4
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);
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}
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public function svg_dimensions($svg) {
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if (
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! preg_match('/.svg$/', $svg)
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||
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! file_exists($svg)
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) {
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return null;
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}
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$svg = file_get_contents($svg);
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$attributes = new \stdClass();
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if ($svg && function_exists('simplexml_load_string')) {
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$svg = @simplexml_load_string($svg);
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if ($svg) {
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$attributes = $svg->attributes();
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}
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}
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if (
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! isset($attributes->width)
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&&
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$svg
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&&
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function_exists('xml_parser_create')
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) {
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$xml = xml_parser_create('UTF-8');
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$svgData = new \stdClass();
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xml_parser_set_option($xml, XML_OPTION_CASE_FOLDING, false);
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xml_set_element_handler(
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$xml,
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function ($parser, $name, $attrs) use (&$svgData) {
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if ($name === 'SVG') {
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if (isset($attrs['WIDTH'])) {
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$attrs['width'] = $attrs['WIDTH'];
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}
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if (isset($attrs['HEIGHT'])) {
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$attrs['height'] = $attrs['HEIGHT'];
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}
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if (isset($attrs['VIEWBOX'])) {
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$attrs['viewBox'] = $attrs['VIEWBOX'];
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}
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foreach ($attrs as $key => $value) {
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$svgData->{$key} = $value;
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}
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}
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},
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function ($parser, $tag) {
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}
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);
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if (xml_parse($xml, $svg, true)) {
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$attributes = $svgData;
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}
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xml_parser_free($xml);
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}
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$width = 0;
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$height = 0;
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if (empty($attributes)) {
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return false;
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}
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if (
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isset($attributes->width, $attributes->height)
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&&
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is_numeric($attributes->width)
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&&
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is_numeric($attributes->height)
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) {
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$width = floatval($attributes->width);
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$height = floatval($attributes->height);
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} elseif (isset($attributes->viewBox)) {
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$sizes = explode(' ', $attributes->viewBox);
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if (isset($sizes[2], $sizes[3])) {
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$width = floatval($sizes[2]);
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$height = floatval($sizes[3]);
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}
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} else {
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return false;
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}
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return [
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'width' => $width,
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'height' => $height,
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'orientation' => ($width > $height) ? 'landscape' : 'portrait'
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];
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}
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}
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