87 lines
2.6 KiB
PHP
87 lines
2.6 KiB
PHP
<?php
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/*
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Plugin Name: OpenFreeMap
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Description: Add an OpenFreeMap widget via shortcode [openfreemap]
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Version: 0.1.0
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Author: Erwin Nindl
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Author URI: https://nindl.net
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*/
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if (!defined('ABSPATH')) {
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exit; // Exit if accessed directly
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}
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// Register the shortcode
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function openfreemap_handler($atts)
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{
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// Set default values
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$atts = shortcode_atts(array(
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'lat' => '47.1092664',
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'lon' => '12.3453356',
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'popup_text' => '',
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'color' => '#ff0000',
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'height' => '450px',
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'zoom' => '16.5'
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), $atts, 'openfreemap');
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// Escape attributes for output
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$lat = esc_js($atts['lat']);
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$lon = esc_js($atts['lon']);
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$popup_text = esc_js($atts['popup_text']);
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$color = esc_js($atts['color']);
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$height = esc_attr($atts['height']);
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$zoom = esc_js($atts['zoom']);
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ob_start(); ?>
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<div id="openfreemap" style="width: 100%; height: <?php echo $height; ?>"></div>
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<script>
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const center = [<?php echo $lon; ?>, <?php echo $lat; ?>];
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const zoom = <?php echo is_numeric($zoom) ? $zoom : 16.5; ?>;
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const map = new maplibregl.Map({
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style: '<?php echo plugin_dir_url(__FILE__) . '/vendor/openfreemap/styles/bright'; ?>',
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center: center,
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zoom: zoom,
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container: 'openfreemap',
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});
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const marker = new maplibregl.Marker({ color: '<?php echo $color; ?>' })
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.setLngLat(center)
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.addTo(map);
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<?php if (!empty($popup_text)): ?>
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const popup = new maplibregl.Popup({ closeOnClick: false }).setHTML('<?php echo $popup_text; ?>');
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marker.setPopup(popup);
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marker.togglePopup();
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<?php endif; ?>
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map.addControl(new maplibregl.NavigationControl());
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</script>
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<?php
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return ob_get_clean();
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}
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add_shortcode('openfreemap', 'openfreemap_handler');
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// Detect shortcode presence in post content
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function openfreemap_detect_shortcode($posts)
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{
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if (empty($posts) || !is_array($posts)) {
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return $posts;
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}
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foreach ($posts as $post) {
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if (has_shortcode($post->post_content, 'openfreemap')) {
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add_action('wp_enqueue_scripts', 'openfreemap_enqueue_shortcode_assets');
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break; // Only need to enqueue once
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}
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}
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return $posts;
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}
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add_filter('the_posts', 'openfreemap_detect_shortcode');
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// Enqueue scripts and styles only if shortcode is used
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function openfreemap_enqueue_shortcode_assets()
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{
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wp_enqueue_style('openfreemap-style', plugin_dir_url(__FILE__) . 'vendor/maplibre-gl/maplibre-gl.css');
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$load_in_footer = false;
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wp_enqueue_script('openfreemap-script', plugin_dir_url(__FILE__) . 'vendor/maplibre-gl/maplibre-gl.js', array('jquery'), null, $load_in_footer);
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}
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add_action('wp_enqueue_scripts', 'openfreemap_enqueue_shortcode_assets');
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