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https://github.com/10h30/wp-strava.git
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Justin Foell
95 lines
3.0 KiB
PHP
95 lines
3.0 KiB
PHP
<?php
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class WPStrava_StaticMapbox extends WPStrava_StaticMap {
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/**
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* Get an image tag to a static mapbox map. Will render with
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* detailed polyline if not greater than 1865 chars, otherwise
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* rendering will use summary polyline.
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*
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* @param object $activity Activity object to get image tag for.
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* @param int $height Height of map in pixels.
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* @param int $width Width of map in pixels.
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* @param bool $markers Display start and finish markers.
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* @param string $title Title attribute to accompany image (default empty).
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* @return string HTML img tag with static map image.
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*/
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public function get_image_tag( $activity, $height = 320, $width = 480, $markers = false, $title = '' ) {
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$polyline = '';
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if ( ! empty( $activity->map->polyline ) ) {
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$polyline = $activity->map->polyline;
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} elseif ( ! empty( $activity->map->summary_polyline ) ) {
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$polyline = $activity->map->summary_polyline;
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}
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if ( empty( $polyline ) ) {
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// No polyline provided.
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return '';
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}
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if ( ! $height || ! $width ) {
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$height = 320;
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$width = 480;
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}
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$url = $this->build_url( $polyline, $height, $width, $markers );
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$url_len = strlen( $url );
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if ( $url_len > self::$max_chars ) {
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// Need to reduce the polyline b/c it's too big.
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$polyline = $this->reduce_polyline( $url_len - $this->polyline_length( $polyline ), $polyline );
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$url = $this->build_url( $polyline, $height, $width, $markers );
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}
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$title_attr = $title ? " title='" . esc_attr( $title ) . "'" : '';
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return "<img class='wp-strava-img' src='{$url}'{$title_attr} />";
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}
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/**
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* Build a Mapbox Static Map URL.
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*
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* @param string $polyline Polyline string to overlay.
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* @param int $height Height of map in pixels.
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* @param int $width Width of map in pixels.
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* @param bool $markers Display start and finish markers.
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* @return string Image URL.
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* @author Justin Foell <justin@foell.org>
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* @since 2.11
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*/
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private function build_url( $polyline, $height = 320, $width = 480, $markers = false ) {
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$url = 'https://api.mapbox.com/styles/v1/mapbox/outdoors-v11/static/';
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$size = "auto/{$width}x{$height}@2x";
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$token = WPStrava::get_instance()->settings->mapbox_token;
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$path = array();
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if ( $markers ) {
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$points = $this->decode_start_finish( $polyline );
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$path[] = "pin-s+008000({$points['start'][1]},{$points['start'][0]})";
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$path[] = "pin-s+ff0000({$points['finish'][1]},{$points['finish'][0]})";
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}
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// polyline must be URL encoded https://stackoverflow.com/a/65523379/2146022
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$url_polyline = rawurlencode( $polyline );
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$path[] = "path-2+ff0000({$url_polyline})";
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$url .= implode( ',', $path ) . "/{$size}?access_token={$token}";
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return $url;
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}
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/**
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* Get the length of a polyline after encoding.
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*
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* @param mixed $polyline Polyline string.
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* @return int Encoded polyline string length.
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* @author Justin Foell <justin@foell.org>
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* @since 2.11
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*/
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protected function polyline_length( $polyline ) {
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return strlen( rawurlencode( $polyline ) );
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}
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}
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