leaflet-map / shortcodes / class.geojson-shortcode.php

class.geojson-shortcode.php in Leaflet Map 2.17.2, at shortcodes/class.geojson-shortcode.php

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1	<?php
2	/**
3	* GeoJSON Shortcode
4	*
5	* Use with [leaflet-geojson src="..."]
6	*
7	* PHP Version 5.5
8	*
9	* @category Shortcode
10	* @author Benjamin J DeLong <ben@bozdoz.com>
11	*/
12
13	// Exit if accessed directly
14	if (!defined('ABSPATH')) {
15	exit;
16	}
17
18	require_once LEAFLET_MAP__PLUGIN_DIR . 'shortcodes/class.shortcode.php';
19
20	/**
21	* GeoJSON Shortcode Class
22	*/
23	class Leaflet_Geojson_Shortcode extends Leaflet_Shortcode
24	{
25	/**
26	* Default src for geoJSON
27	*
28	* @var string $default_src
29	*/
30	public static $default_src = 'https://gist.githubusercontent.com/bozdoz/064a7101b95a324e8852fe9381ab9a18/raw/03f4f54b13a3a7e256732760a8b679818d9d36fc/map.geojson';
31
32	/**
33	* How leaflet renders the src
34	*
35	* @var string $type
36	*/
37	public static $type = 'json';
38
39	/**
40	* Get Script for Shortcode
41	*
42	* @param string $atts could be an array
43	* @param string $content could be an array
44	*
45	* @return string HTML
46	*/
47	protected function getHTML($atts='', $content=null)
48	{
49
50	// need to get the called class to extend above variables
51	$class = self::getClass();
52
53	if ($atts) {
54	extract($atts);
55	}
56
57	wp_enqueue_script('leaflet_ajax_geojson_js');
58
59	if ($content) {
60	$content = str_replace(array("\r\n", "\n", "\r"), '<br>', $content);
61	$content = htmlspecialchars($content);
62	}
63
64	/* only required field for geojson; accept either src or source */
65	$source = empty($source) ? '' : $source;
66	$src = empty($src) ? $class::$default_src : $src;
67	$src = empty($source) ? $src : $source;
68
69	$style_json = $this->LM->get_style_json($atts);
70
71	$fitbounds = empty($fitbounds) ? 0 : $fitbounds;
72	$circleMarker = empty($circleMarker) ? 0 : $circleMarker;
73
74	// shortcode content becomes popup text
75	$content_text = empty($content) ? '' : $content;
76	// alternatively, the popup_text attribute works as popup text
77	$popup_text = empty($popup_text) ? '' : $popup_text;
78	// choose which one takes priority (content_text)
79	$popup_text = empty($content_text) ? $popup_text : $content_text;
80
81	$popup_property = empty($popup_property) ? '' : $popup_property;
82
83	$popup_text = trim($popup_text);
84
85	ob_start();
86	?>
87	<script>
88	window.WPLeafletMapPlugin = window.WPLeafletMapPlugin \|\| [];
89	window.WPLeafletMapPlugin.push(function () {
90	var src = '<?php echo $src; ?>',
91	default_style = <?php echo $style_json; ?>,
92	rewrite_keys = {
93	stroke : 'color',
94	'stroke-width' : 'weight',
95	'stroke-opacity' : 'opacity',
96	fill : 'fillColor',
97	'fill-opacity' : 'fillOpacity',
98	},
99	layer = L.ajaxGeoJson(src, {
100	type: '<?php echo $class::$type; ?>',
101	style : layerStyle,
102	onEachFeature : onEachFeature,
103	pointToLayer: pointToLayer
104	}),
105	fitbounds = <?php echo $fitbounds; ?>,
106	circleMarker = <?php echo $circleMarker; ?>,
107	popup_text = window.WPLeafletMapPlugin.unescape('<?php echo $popup_text; ?>'),
108	popup_property = '<?php echo $popup_property; ?>',
109	group = window.WPLeafletMapPlugin.getCurrentGroup();
110	layer.addTo( group );
111	window.WPLeafletMapPlugin.geojsons.push( layer );
112	if (fitbounds) {
113	layer.on('ready', function () {
114	this.map.fitBounds( this.getBounds() );
115	});
116	}
117	function layerStyle (feature) {
118	var props = feature.properties \|\| {};
119	var style = {};
120	var camelFun = function camelFun (_, first_letter) {
121	return first_letter.toUpperCase();
122	};
123	for (var key in props) {
124	if (key.match('-')) {
125	var camelcase = key.replace(/-(\w)/, camelFun);
126	style[ camelcase ] = props[ key ];
127	}
128	// rewrite style keys from geojson.io
129	if (rewrite_keys[ key ]) {
130	style[ rewrite_keys[ key ] ] = props[ key ];
131	}
132	}
133	style = L.Util.extend(style, default_style);
134	return style;
135	}
136	function onEachFeature (feature, layer) {
137	var props = feature.properties \|\| {};
138	var text = popup_property
139	? props[ popup_property ]
140	: window.WPLeafletMapPlugin.template(
141	popup_text,
142	feature.properties
143	);
144	if (text) {
145	layer.bindPopup( text );
146	}
147	}
148	function pointToLayer (feature, latlng) {
149	if (circleMarker) {
150	return L.circleMarker(latlng);
151	} else {
152	return L.marker(latlng);
153	}
154	}
155	});
156	</script>
157	<?php
158	return ob_get_clean();
159	}
160	}
161