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

class.geojson-shortcode.php in Leaflet Map 2.11.5, 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://rawgit.com/bozdoz/567817310f102d169510d94306e4f464/raw/2fdb48dafafd4c8304ff051f49d9de03afb1718b/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
73	// shortcode content becomes popup text
74	$content_text = empty($content) ? '' : $content;
75	// alternatively, the popup_text attribute works as popup text
76	$popup_text = empty($popup_text) ? '' : $popup_text;
77	// choose which one takes priority (content_text)
78	$popup_text = empty($content_text) ? $popup_text : $content_text;
79
80	$popup_property = empty($popup_property) ? '' : $popup_property;
81
82	$popup_text = trim($popup_text);
83
84	ob_start();
85	?>
86	<script>
87	window.WPLeafletMapPlugin = window.WPLeafletMapPlugin \|\| [];
88	window.WPLeafletMapPlugin.push(function () {
89	var previous_map = window.WPLeafletMapPlugin.getCurrentMap(),
90	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	}),
104	fitbounds = <?php echo $fitbounds; ?>,
105	popup_text = window.WPLeafletMapPlugin.unescape('<?php echo $popup_text; ?>'),
106	popup_property = '<?php echo $popup_property; ?>';
107	if (fitbounds) {
108	layer.on('ready', function () {
109	this.map.fitBounds( this.getBounds() );
110	});
111	}
112	layer.addTo( previous_map );
113	function layerStyle (feature) {
114	var props = feature.properties \|\| {};
115	var style = {};
116	var camelFun = function camelFun (_, first_letter) {
117	return first_letter.toUpperCase();
118	};
119	for (var key in props) {
120	if (key.match('-')) {
121	var camelcase = key.replace(/-(\w)/, camelFun);
122	style[ camelcase ] = props[ key ];
123	}
124	// rewrite style keys from geojson.io
125	if (rewrite_keys[ key ]) {
126	style[ rewrite_keys[ key ] ] = props[ key ];
127	}
128	}
129	style = L.Util.extend(style, default_style);
130	return style;
131	}
132	function onEachFeature (feature, layer) {
133	var props = feature.properties \|\| {};
134	var text = popup_property && props[ popup_property ] \|\|
135	template(popup_text, feature.properties);
136	if (text) {
137	layer.bindPopup( text );
138	}
139	}
140	var templateRe = /\{ ([\w_-]+) \}/g;
141	function template(str, data) {
142	return str.replace(templateRe, function (match, key) {
143	var value = data[key];
144	if (value === undefined) {
145	return match;
146	}
147	return value;
148	});
149	}
150	});
151	</script>
152	<?php
153	return ob_get_clean();
154	}
155	}
156