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<?php
/**
* The Google Maps field.
*
* @package Meta Box
*/
/**
* Map field class.
*/
class RWMB_Map_Field extends RWMB_Field {
/**
* Enqueue scripts and styles.
*/
public static function admin_enqueue_scripts() {
/**
* Since June 2016, Google Maps requires a valid API key.
*
* @link http://googlegeodevelopers.blogspot.com/2016/06/building-for-scale-updates-to-google.html
* @link https://developers.google.com/maps/documentation/javascript/get-api-key
*/
$args = func_get_args();
$field = $args[0];
$google_maps_url = add_query_arg( 'key', $field['api_key'], 'https://maps.google.com/maps/api/js' );
/**
* Allows developers load more libraries via a filter.
*
* @link https://developers.google.com/maps/documentation/javascript/libraries
*/
$google_maps_url = apply_filters( 'rwmb_google_maps_url', $google_maps_url );
wp_register_script( 'google-maps', esc_url_raw( $google_maps_url ), array(), '', true );
wp_enqueue_style( 'rwmb-map', RWMB_CSS_URL . 'map.css', array(), RWMB_VER );
wp_enqueue_script( 'rwmb-map', RWMB_JS_URL . 'map.js', array( 'jquery-ui-autocomplete', 'google-maps' ), RWMB_VER, true );
}
/**
* Get field HTML.
*
* @param mixed $meta Meta value.
* @param array $field Field parameters.
*
* @return string
*/
public static function html( $meta, $field ) {
$address = is_array( $field['address_field'] ) ? implode( ',', $field['address_field'] ) : $field['address_field'];
$html = sprintf(
'<div class="rwmb-map-field" data-address-field="%s">',
esc_attr( $address )
);
$html .= sprintf(
'<div class="rwmb-map-canvas" data-default-loc="%s" data-region="%s"></div>
<input type="hidden" name="%s" class="rwmb-map-coordinate" value="%s">',
esc_attr( $field['std'] ),
esc_attr( $field['region'] ),
esc_attr( $field['field_name'] ),
esc_attr( $meta )
);
if ( $field['address_field'] ) {
$html .= sprintf(
'<button class="button rwmb-map-goto-address-button">%s</button>',
esc_html__( 'Find Address', 'meta-box' )
);
}
$html .= '</div>';
return $html;
}
/**
* Normalize parameters for field.
*
* @param array $field Field parameters.
*
* @return array
*/
public static function normalize( $field ) {
$field = parent::normalize( $field );
$field = wp_parse_args( $field, array(
'std' => '',
'address_field' => '',
'region' => '',
// Default API key, required by Google Maps since June 2016.
// Users should overwrite this key with their own key.
'api_key' => 'AIzaSyC1mUh87SGFyf133tpZQJa-s96p0tgnraQ',
) );
return $field;
}
/**
* Get the field value.
* The difference between this function and 'meta' function is 'meta' function always returns the escaped value
* of the field saved in the database, while this function returns more meaningful value of the field.
*
* @param array $field Field parameters.
* @param array $args Not used for this field.
* @param int|null $post_id Post ID. null for current post. Optional.
*
* @return mixed Array(latitude, longitude, zoom)
*/
public static function get_value( $field, $args = array(), $post_id = null ) {
$value = parent::get_value( $field, $args, $post_id );
list( $latitude, $longitude, $zoom ) = explode( ',', $value . ',,' );
return compact( 'latitude', 'longitude', 'zoom' );
}
/**
* Output the field value.
* Display Google maps.
*
* @param array $field Field parameters.
* @param array $args Additional arguments. Not used for these fields.
* @param int|null $post_id Post ID. null for current post. Optional.
*
* @return mixed Field value
*/
public static function the_value( $field, $args = array(), $post_id = null ) {
$value = self::get_value( $field, $args, $post_id );
if ( ! $value['latitude'] || ! $value['longitude'] ) {
return '';
}
if ( ! $value['zoom'] ) {
$value['zoom'] = 14;
}
$args = wp_parse_args( $args, array(
'latitude' => $value['latitude'],
'longitude' => $value['longitude'],
'width' => '100%',
'height' => '480px',
'marker' => true, // Display marker?
'marker_title' => '', // Marker title, when hover.
'info_window' => '', // Content of info window (when click on marker). HTML allowed.
'js_options' => array(),
// Default API key, required by Google Maps since June 2016.
// Users should overwrite this key with their own key.
'api_key' => 'AIzaSyC1mUh87SGFyf133tpZQJa-s96p0tgnraQ',
) );
/*
* Enqueue scripts.
* API key is get from $field (if found by RWMB_Helper::find_field()) or $args as a fallback.
* Note: We still can enqueue script which outputs in the footer.
*/
$api_key = isset( $field['api_key'] ) ? $field['api_key'] : $args['api_key'];
$google_maps_url = add_query_arg( 'key', $api_key, 'https://maps.google.com/maps/api/js' );
/*
* Allows developers load more libraries via a filter.
* @link https://developers.google.com/maps/documentation/javascript/libraries
*/
$google_maps_url = apply_filters( 'rwmb_google_maps_url', $google_maps_url );
wp_register_script( 'google-maps', esc_url_raw( $google_maps_url ), array(), '', true );
wp_enqueue_script( 'rwmb-map-frontend', RWMB_JS_URL . 'map-frontend.js', array( 'google-maps' ), '', true );
/*
* Google Maps options.
* Option name is the same as specified in Google Maps documentation.
* This array will be convert to Javascript Object and pass as map options.
* @link https://developers.google.com/maps/documentation/javascript/reference
*/
$args['js_options'] = wp_parse_args( $args['js_options'], array(
// Default to 'zoom' level set in admin, but can be overwritten.
'zoom' => $value['zoom'],
// Map type, see https://developers.google.com/maps/documentation/javascript/reference#MapTypeId.
'mapTypeId' => 'ROADMAP',
) );
$output = sprintf(
'<div class="rwmb-map-canvas" data-map_options="%s" style="width:%s;height:%s"></div>',
esc_attr( wp_json_encode( $args ) ),
esc_attr( $args['width'] ),
esc_attr( $args['height'] )
);
return $output;
}
}
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