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

class.geojson-shortcode.php in Leaflet Map 2.10.0, 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	* @param array $atts user-input array
8	* @return string JavaScript
9	*/
10
11	// Exit if accessed directly
12	if ( !defined( 'ABSPATH' ) ) exit;
13
14	include_once(LEAFLET_MAP__PLUGIN_DIR . 'shortcodes/class.shortcode.php');
15
16	class Leaflet_Geojson_Shortcode extends Leaflet_Shortcode {
17	/**
18	* @var string $default_src default src
19	*/
20	public static $default_src = 'https://rawgit.com/bozdoz/567817310f102d169510d94306e4f464/raw/2fdb48dafafd4c8304ff051f49d9de03afb1718b/map.geojson';
21
22	/**
23	* @var string $type how leaflet renders the src
24	*/
25	public static $type = 'json';
26
27	protected function getHTML ($atts='', $content=null) {
28
29	// need to get the called class to extend above variables
30	$class = self::getClass();
31
32	if ($atts) extract($atts);
33
34	wp_enqueue_script( 'leaflet_ajax_geojson_js' );
35
36	if ($content) {
37	$content = str_replace(array("\r\n", "\n", "\r"), '<br>', $content);
38	$content = htmlspecialchars($content);
39	}
40
41	/* only required field for geojson; accept either src or source */
42	$source = empty($source) ? '' : $source;
43	$src = empty($src) ? $class::$default_src : $src;
44	$src = empty($source) ? $src : $source;
45
46	$style_json = $this->LM->get_style_json( $atts );
47
48	$fitbounds = empty($fitbounds) ? 0 : $fitbounds;
49
50	// shortcode content becomes popup text
51	$content_text = empty($content) ? '' : $content;
52	// alternatively, the popup_text attribute works as popup text
53	$popup_text = empty($popup_text) ? '' : $popup_text;
54	// choose which one takes priority (content_text)
55	$popup_text = empty($content_text) ? $popup_text : $content_text;
56
57	$popup_property = empty($popup_property) ? '' : $popup_property;
58
59	$popup_text = trim($popup_text);
60
61	ob_start();
62	?>
63	<script>
64	WPLeafletMapPlugin.add(function () {
65	var previous_map = WPLeafletMapPlugin.getCurrentMap(),
66	src = '<?php echo $src; ?>',
67	default_style = <?php echo $style_json; ?>,
68	rewrite_keys = {
69	fill : 'fillColor',
70	'fill-opacity' : 'fillOpacity',
71	stroke : 'color',
72	'stroke-opacity' : 'opacity',
73	'stroke-width' : 'width',
74	},
75	layer = L.ajaxGeoJson(src, {
76	type: '<?php echo $class::$type; ?>',
77	style : layerStyle,
78	onEachFeature : onEachFeature
79	}),
80	fitbounds = <?php echo $fitbounds; ?>,
81	popup_text = WPLeafletMapPlugin.unescape('<?php echo $popup_text; ?>'),
82	popup_property = '<?php echo $popup_property; ?>';
83	if (fitbounds) {
84	layer.on('ready', function () {
85	this.map.fitBounds( this.getBounds() );
86	});
87	}
88	layer.addTo( previous_map );
89	function layerStyle (feature) {
90	var props = feature.properties \|\| {},
91	style = {};
92	for (var key in props) {
93	if (key.match('-')) {
94	var camelcase = key.replace(/-(\w)/, function (_, first_letter) {
95	return first_letter.toUpperCase();
96	});
97	style[ camelcase ] = props[ key ];
98	}
99	// rewrite style keys from geojson.io
100	if (rewrite_keys[ key ]) {
101	style[ rewrite_keys[ key ] ] = props[ key ];
102	}
103	}
104	style = L.Util.extend(style, default_style);
105	return style;
106	}
107	function onEachFeature (feature, layer) {
108	var props = feature.properties \|\| {},
109	text = popup_property && props[ popup_property ] \|\| template(popup_text, feature.properties);
110	if (text) {
111	layer.bindPopup( text );
112	}
113	}
114	var templateRe = /\{ ([\w_-]+) \}/g;
115	function template(str, data) {
116	return str.replace(templateRe, function (match, key) {
117	var value = data[key];
118	if (value === undefined) {
119	return match;
120	}
121	return value;
122	});
123	}
124	});
125	</script>
126	<?php
127	return ob_get_clean();
128	}
129	}