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<?php |
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/** |
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* Image Shortcode |
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* |
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* Displays map with [leaflet-image src="path/to/image.jpg"] |
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* |
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* JavaScript equivalent : L.imageOverlay('path/to/image.jpg'); |
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* |
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* PHP Version 5.5 |
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* |
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* @category Shortcode |
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* @author Benjamin J DeLong <ben@bozdoz.com> |
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*/ |
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|
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// Exit if accessed directly |
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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require_once LEAFLET_MAP__PLUGIN_DIR . 'shortcodes/class.map-shortcode.php'; |
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|
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/** |
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* Leaflet Image Shortcode Class |
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*/ |
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class Leaflet_Image_Shortcode extends Leaflet_Map_Shortcode |
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{ |
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/** |
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* Get HTML for shortcode |
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* |
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* @param string $atts or Array |
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* @param string $content produced by adding atts to JavaScript |
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* |
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* @return string HTML script |
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*/ |
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protected function getHTML($atts='', $content=null) |
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{ |
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extract($this->getAtts($atts)); |
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|
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/* only required field for image map (src/source) */ |
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$src = empty($src) ? '' : $src; |
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$source = empty($source) ? 'https://picsum.photos/1000/1000/' : $source; |
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$source = empty($src) ? $source : $src; |
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|
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ob_start(); |
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?> |
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<script> |
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(function () { |
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// TODO: This could/should be abstracted so we don't duplicate code in map-shortcode |
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var scriptsSoFar = document.getElementsByTagName('script'); |
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var thisScript = scriptsSoFar[scriptsSoFar.length - 1]; |
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// create map HTMLElement |
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var mapElement = document.createElement('div'); |
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mapElement.className = 'leaflet-map'; |
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mapElement.style.height = "<?php echo $height; ?>"; |
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mapElement.style.width = "<?php echo $width; ?>"; |
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// insert just before this script |
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thisScript.parentNode.insertBefore(mapElement, thisScript); |
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// push deferred map creation function |
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window.WPLeafletMapPlugin = window.WPLeafletMapPlugin || []; |
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window.WPLeafletMapPlugin.push(function () { |
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var map, |
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options = L.Util.extend({}, { |
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maxZoom: <?php echo $max_zoom; ?>, |
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minZoom: <?php echo $min_zoom; ?>, |
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zoomControl: <?php echo $zoomcontrol; ?>, |
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scrollWheelZoom: <?php echo $scrollwheel; ?>, |
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doubleClickZoom: <?php echo $doubleclickzoom; ?>, |
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attributionControl: false |
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}, <?php echo $more_options; ?>, { |
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crs: L.CRS.Simple |
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}), |
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image_src = '<?php echo $source; ?>', |
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img = new Image(), |
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zoom = <?php echo $zoom; ?>; |
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img.onload = function() { |
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var h = img.height, |
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w = img.width, |
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projected_zoom = zoom + 1, |
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southWest = map.unproject([-w, h], projected_zoom), |
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northEast = map.unproject([w, -h], projected_zoom), |
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bounds = new L.LatLngBounds(southWest, northEast); |
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L.imageOverlay( image_src, bounds ).addTo( map ); |
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map.setMaxBounds(bounds); |
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}; |
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img.src = image_src; |
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map = L.map(mapElement, options).setView([0, 0], zoom); |
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// make it known that it is an image map |
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map.is_image_map = true; |
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if (<?php echo $fitbounds; ?>) { |
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map._shouldFitBounds = true; |
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} |
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<?php |
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if ($attribution) { |
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/* add any attributions, semi-colon-separated */ |
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$attributions = explode(';', $attribution); |
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?> |
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var attControl = L.control.attribution({prefix:false}).addTo(map); |
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<?php |
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foreach ($attributions as $a) { |
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?> |
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attControl.addAttribution('<?php echo trim($a); ?>'); |
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<?php |
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} |
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} |
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?> |
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window.WPLeafletMapPlugin.maps.push( map ); |
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window.WPLeafletMapPlugin.images.push( img ); |
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}); // end add |
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})(); // end IIFE |
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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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} |
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