mirror of
https://git.sindominio.net/estibadores/wordpress.git
synced 2024-11-23 02:51:06 +01:00
429 lines
15 KiB
PHP
429 lines
15 KiB
PHP
<?php
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/**
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* Squat Radar Events Widget.
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*
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* @package squat-radar
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* @since 2.0.0
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*/
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// Exit if accessed directly.
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defined( 'ABSPATH' ) || exit;
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class Squat_Radar_Widget extends WP_Widget {
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public function __construct() {
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$widget_ops = array(
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'classname' => 'squat-radar-widget',
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'description' => 'Radar Events List',
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);
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$this->connector = new Squat_Radar_Connector();
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parent::__construct( 'Squat_Radar', 'Squat Radar Events', $widget_ops );
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}
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/**
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* Register the widget
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*/
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public static function register_widget() {
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register_widget( __CLASS__ );
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add_action( 'wp_ajax_squat_radar_events', [__CLASS__, 'ajax_callback'] );
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add_action( 'wp_ajax_nopriv_squat_radar_events', [__CLASS__, 'ajax_callback'] );
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add_action( 'wp_enqueue_scripts', [__CLASS__, 'widget_script'] );
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add_action( 'wp_enqueue_scripts', [__CLASS__, 'widget_style'] );
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add_action( 'squat_radar_widget_cache_cron', [__CLASS__, 'cache_cron'] );
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add_option( 'squat_radar_widget_cron_run', []);
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}
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/**
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* Enqueue scripts callback, add CSS.
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*/
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static public function widget_style() {
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wp_register_style( 'squat-radar-widget', SQUAT_RADAR_URL . 'assets/squat-radar.css' );
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wp_enqueue_style( 'squat-radar-widget' );
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}
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/**
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* Enqueue scripts callback, add JS.
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*/
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static public function widget_script() {
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wp_register_script( 'squat-radar-widget', SQUAT_RADAR_URL . 'assets/squat-radar.js', ['jquery'] );
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}
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/**
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* Cron action.
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*
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* Uses an option to keep track of when run, and updates any (experimental) widgets that update using a cron period instead of ajax.
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*/
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public static function cache_cron() {
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$now = time();
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$last_run = get_option('squat_radar_widget_cron_run', []);
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foreach (self::cron_instances() as $number => $instance) {
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if (! isset($last_run[$number]) || $last_run[$number] + $instance['cache_expire'] < $now ) {
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if (self::cache_refresh($instance)) {
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$last_run[$number] = $now;
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}
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}
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}
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set_option('squat_radar_widget_cron_run', $last_run);
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}
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/**
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* Refresh an individual widget instance for cache_cron().
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*/
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protected static function cache_refresh($instance) {
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$connector = new Squat_Radar_Connector();
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$languages = apply_filters( 'wpml_active_languages', NULL);
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$languages = array_keys($languages);
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$languages = array_merge($instance['url']['keys']['language'], (array) $languages);
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foreach ($languages as $language) {
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try {
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// Force update. Don't set expire.
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$data = $connector->events($instance['url']['keys']['facets'], $instance['fields'], $language, $instance['limit'], 0, TRUE );
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}
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catch ( Squat_Radar_Connector_Exception $e ) {
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return FALSE;
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}
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}
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return TRUE;
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}
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/**
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* Implementation of WP_Widget::widget().
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*
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* Outputs the events for the correct instance of the widget.
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*/
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public function widget( $args, $instance ) {
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$widget_id = 'squat_radar_widget_' . $this->number;
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echo $args['before_widget'];
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if ( ! empty( $instance['title'] ) ) {
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echo $args['before_title'] . apply_filters( 'widget_title', $instance['title'] ) . $args['after_title'];
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}
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if ( ! empty($instance['use_cron']) ) {
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try {
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echo self::instance_events_html($instance);
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}
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catch ( Squat_Radar_Connector_Exception $e ) {
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if ( current_user_can( 'administrator' ) ) {
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echo $e->getCode() . ': ' . $e->getMessage();
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}
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echo '<div id="' . $widget_id . '" class="squat-radar-widget"><a href="' . esc_url_raw( $instance['url']['value'] ) . '">'
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. esc_url( $instance['url']['value'] )
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. '</a></div>';
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}
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}
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else {
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wp_enqueue_script( 'squat-radar-widget');
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wp_localize_script( 'squat-radar-widget', 'squat_radar_widget', [ 'ajaxurl' => admin_url( 'admin-ajax.php' ) ] );
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wp_localize_script( 'squat-radar-widget', $widget_id, ['number' => $this->number] );
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echo '<div id="' . $widget_id . '" class="squat-radar-widget squat-radar-ajax"><a href="' . esc_url_raw( $instance['url']['value'] ) . '">'
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. esc_url( $instance['url']['value'] )
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. '</a></div>';
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}
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echo $args['after_widget'];
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}
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/**
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* Action callback for AJAX widget display.
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*/
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public static function ajax_callback() {
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if ( ! array_key_exists('instance', $_POST) ) {
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wp_die();
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}
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$data = [];
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// Load instance configuration from ID.
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$instance_number = (int) $_POST['instance']['number'];
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$widget_options_all = get_option('widget_squat_radar');
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if ( ! isset($widget_options_all[$instance_number]) ) {
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wp_die();
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}
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try {
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$data['html'] = self::instance_events_html($widget_options_all[$instance_number]);
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}
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catch ( Squat_Radar_Connector_Exception $e ) {
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$data = ['is_error' => TRUE];
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if ( current_user_can( 'administrator' ) ) {
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$data['error']['code'] = $e->getCode();
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$data['error']['message'] = $e->getMessage();
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}
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}
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wp_send_json($data);
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}
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public static function instance_events_html($instance) {
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$language = defined('ICL_LANGUAGE_CODE') ? ICL_LANGUAGE_CODE : $instance['url']['keys']['language'];
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$connector = new Squat_Radar_Connector();
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$data = $connector->events($instance['url']['keys']['facets'], $instance['fields'], $language, $instance['limit'], $instance['cache_expire']);
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$html = '';
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foreach ($data['result'] as $id => $event) {
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$output = apply_filters( 'squat_radar_format_event', $event, $instance['fields'], ['instance' => $instance] );
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$html .= implode(' ', $output);
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}
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return $html;
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}
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/**
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* Implementation of WP_Widget::form().
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*
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* Widget options.
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*/
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public function form( $instance ) {
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//
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// Title.
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//
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$field_id = esc_attr( $this->get_field_id( 'title' ) );
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$field_name = esc_attr( $this->get_field_name( 'title' ) );
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$field_label = esc_attr( 'Title:', 'squat-radar' );
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$field_value = empty( $instance['title'] ) ? '' : esc_attr( $instance['title'] );
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$field_class = 'widefat';
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echo "<p>";
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echo "<label for=\"$field_id\">$field_label</label>";
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echo "<input class=\"$field_class\" id=\"$field_id\" name=\"$field_name\" type=\"text\" value=\"$field_value\">";
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echo "</p>";
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//
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// Limit
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//
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$field_id = esc_attr( $this->get_field_id( 'limit' ) );
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$field_name = esc_attr( $this->get_field_name( 'limit' ) );
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$field_label = esc_attr( 'Max number of events to display:', 'squat-radar' );
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$field_value = empty( $instance['limit'] ) ? '10' : (int) $instance['limit'];
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$field_class = 'tiny-text';
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echo "<p>";
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echo "<label for=\"$field_id\">$field_label</label>";
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echo "<input class=\"$field_class\" id=\"$field_id\" name=\"$field_name\" type=\"number\" step=\"1\" min=\"1\" value=\"$field_value\" size=\"3\">";
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echo "</p>";
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//
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// URL.
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//
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$field_error = ! empty( $instance['url']['error'] );
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$field_id = esc_attr( $this->get_field_id( 'url' ) );
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$field_name = esc_attr( $this->get_field_name( 'url' ) );
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$field_label = esc_attr( 'Event Search URL:', 'squat-radar' );
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$field_value = empty( $instance['url']['value'] ) ? '' : esc_attr( $instance['url']['value'] );
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$field_class = 'widefat' . $field_error ? ' error' : '';
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echo "<p>";
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echo "<label for=\"$field_id\">$field_label</label>";
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echo "<input class=\"$field_class\" id=\"$field_id\" name=\"$field_name\" type=\"text\" value=\"$field_value\">";
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echo "</p>";
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if ( $field_error ) {
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echo '<div class="description error">' . __('The URL was not recognised as a Radar Events search result. It needs to include the domain and the rest of the /events/search/path like: https://radar.squat.net/en/events/city/City_Name/group/123 Start from <a href="https://radar.squat.net/en/events" target="_blank">https://radar.squat.net/en/events</a> and use the filters in the right hand colunm there before copying the URL from your browser address bar.', 'squat-radar') . '</div>';
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}
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else {
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echo '<div class="description">' . __('Go to <a href="https://radar.squat.net/en/events" target="_blank">https://radar.squat.net/en/events</a> and filter for the events you want to show. Then copy the URL from your address bar into here. It will look similar to: https://radar.squat.net/en/events/city/City_Name/group/123 for example the URL to show all international callouts is https://radar.squat.net/en/events/callout/international-callout', 'squat-radar') . '</div>';
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}
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if ( empty($instance['url']['error']) && ! empty( $instance['url']['keys'] ) ) {
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echo '<hr>';
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echo '<p>' . __('Currently selecting events:', 'squat-radar') . '</p>';
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echo '<dl>';
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echo '<dt>' . __('Default language', 'squat-radar') . '</dt>';
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echo '<dd>' . esc_html($instance['url']['keys']['language']) . '</dd>';
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foreach ($instance['url']['keys']['facets'] as $key => $value) {
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echo '<dt>' . esc_html($key) . '</dt>';
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echo '<dd>' . esc_html($value) . '</dd>';
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}
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echo '</dl>';
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}
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echo '<hr>';
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echo '<fieldset>';
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echo '<legend>' . __('Fields', 'squat-radar') . '</legend>';
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echo '<p>';
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// Some sensible checkbox defaults.
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if ( empty($instance['fields']) ) {
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$instance['fields'] = [
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'title_field' => '',
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'date_time:time_start' => '',
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'body:summary' => '',
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'category' => '',
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'offline:address' => '',
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'offline:map' => '',
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'url' => '',
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];
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}
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foreach ($this->preset_fields() as $api_field_name => $field_label) {
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$field_id = esc_attr( $this->get_field_id( 'field-' . $api_field_name ) );
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$field_name = esc_attr( $this->get_field_name( 'field-' . $api_field_name ) );
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$field_label = esc_attr( $field_label );
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$checked = '';
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if ( isset($instance['fields'][$api_field_name]) ) {
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unset($instance['fields'][$api_field_name]);
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$checked = ' checked="checked"';
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}
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echo "<input type=\"checkbox\" class=\"checkbox\" id=\"$field_id\" name=\"$field_name\"$checked />";
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echo "<label for=\"$field_id\">$field_label</label><br />";
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}
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echo '</p>';
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echo '</fieldset>';
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// ADVANCED
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echo '<hr>';
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echo '<fieldset>';
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echo '<legend>' . __('Advanced settings', 'squat-radar') . '</legend>';
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//
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// Fields.
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//
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$field_id = esc_attr( $this->get_field_id( 'fields' ) );
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$field_name = esc_attr( $this->get_field_name( 'fields' ) );
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$field_label = esc_attr( 'Additional fields:', 'squat-radar' );
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$field_value = empty( $instance['fields'] ) ? '' : esc_attr( implode( ', ', $instance['fields'] ) );
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$field_class = 'widefat';
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echo "<p>";
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echo "<label for=\"$field_id\">$field_label</label>";
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echo "<input class=\"$field_class\" id=\"$field_id\" name=\"$field_name\" type=\"text\" value=\"$field_value\">";
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echo "</p>";
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echo '<div class="description">' . __('A comma seperated list of field API names. Examples: phone, price, flyer, offline:address:thoroughfare. Some fields might need an additonal filter to format them properly.') . '</div>';
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//
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// Cache expiry.
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//
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$field_id = esc_attr( $this->get_field_id( 'cache_expire' ) );
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$field_name = esc_attr( $this->get_field_name( 'cache_expire' ) );
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$field_label = esc_attr( 'Cache length:', 'squat-radar' );
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$field_value = empty( $instance['cache_expire'] ) ? 10800 : (int) $instance['cache_expire'];
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$field_class = 'widefat';
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echo "<p>";
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echo "<label for=\"$field_id\">$field_label</label>";
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echo "<select class=\"$field_class\" id=\"$field_id\" name=\"$field_name\">";
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echo '<option value="3600"' . selected( $field_value, 3600 ) . '>' . __('1 hour') . '</option>';
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echo '<option value="10800"' . selected( $field_value, 10800 ) . '>' . __('3 hours') . '</option>';
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echo '<option value="43200"' . selected( $field_value, 43200 ) . '>' . __('12 hours') . '</option>';
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echo "</select>";
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echo "</p>";
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echo '<div class="description">' . __('Length of time the cache of events will be kept. Longer faster, but updated less often.') . '</div>';
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$field_id = esc_attr( $this->get_field_id( 'use_cron' ) );
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$field_name = esc_attr( $this->get_field_name( 'use_cron' ) );
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$field_label = esc_attr__( 'Use cron' );
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$use_cron = isset($instance['use_cron']) ? (bool) $instance['use_cron'] : false;
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$checked = checked( $use_cron, TRUE, FALSE );
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echo "<input type=\"checkbox\" class=\"checkbox\" id=\"$field_id\" name=\"$field_name\"$checked />";
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echo "<label for=\"$field_id\">$field_label</label><br />";
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echo '<div class="description">' . __('Do not use AJAX, but always display the cached version of the events. Update the cache after the expiry length using cron. Works best if you have a regular external cronjob running.') . '</div>';
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echo '</fieldset>';
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}
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/**
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* Implementation of WP_Widget::update().
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*
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* Save widget options.
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*/
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public function update( $new_instance, $old_instance ) {
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$options = [];
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if ( ! empty( $new_instance['title'] ) ) {
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$options['title'] = sanitize_text_field( $new_instance['title'] );
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}
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else {
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$options['title'] = '';
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}
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if ( ! empty($new_instance['url']) ) {
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$keys = $this->connector->decode_search_url($new_instance['url']);
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$options['url']['keys'] = $keys;
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$options['url']['value'] = $new_instance['url'];
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if (empty($keys)) {
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$options['url']['error'] = 'URL not recognised';
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}
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}
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else {
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$options['url'] = ['value' => '', 'keys' => []];
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}
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$options['fields'] = [];
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foreach ($this->preset_fields() as $field_name => $field_label) {
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if ( ! empty($new_instance['field-' . $field_name]) ) {
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$options['fields'][$field_name] = $field_name;
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}
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}
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if ( ! empty($new_instance['fields']) ) {
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$matches = [];
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preg_match_all('/([a-zA-Z_:]+)/', $new_instance['fields'], $matches);
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$options['fields'] += array_combine($matches[0], $matches[0]);
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}
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if ( ! empty( $new_instance['limit'] ) ) {
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$options['limit'] = (int) $new_instance['limit'];
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}
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if ( ! empty( $new_instance['cache_expire'] ) ) {
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$options['cache_expire'] = (int) $new_instance['cache_expire'];
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}
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else {
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$options['cache_expire'] = 10800;
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}
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if ( empty( $new_instance['use_cron'] )) {
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$options['use_cron'] = FALSE;
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$cron_instances = self::cron_instances();
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unset($cron_instances[$this->number]);
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if ( empty($cron_instances) && ($timestamp = wp_next_scheduled( 'squat_radar_widget_cache_cron' ) )) {
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wp_unschedule_event( $timestamp, 'squat_radar_widget_cache_cron' );
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}
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}
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else {
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$options['use_cron'] = TRUE;
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self::cache_refresh($options);
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if ( ! wp_next_scheduled( 'squat_radar_widget_cache_cron' ) ) {
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wp_schedule_event( time() + $options['cache_expire'], 'hourly', 'squat_radar_widget_cache_cron');
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}
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}
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return $options;
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}
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public function preset_fields() {
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return [
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'title_field' => __( 'Title' ),
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'event_status' => __( 'Event status (proposed, or cancelled)' ),
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'date_time' => __( 'Date and Time (start and optional end)' ),
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'date_time:time_start' => __( 'Date and Time (start only)' ),
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'body' => __( 'Body' ),
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'body:summary' => __( 'Body (teaser, summary)' ),
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'category' => __( 'Categories' ),
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'topic' => __( 'Tags' ),
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'offline:address' => __( 'Address' ),
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'offline:map' => __( 'Map (link)' ),
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'og_group_ref' => __( 'Groups' ),
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'price_category' => __( 'Price category' ),
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'image:file:url' => __( 'Image' ),
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'link' => __( 'Event URL (entered not Radar)' ),
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'url' => __( 'More link (to event on Radar)' ),
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];
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}
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public static function cron_instances() {
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$cron_instances = [];
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$instances = get_option( 'widget_squat_radar' );
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foreach ($instances as $number => $instance) {
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if (! empty($instance['use_cron']) ) {
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$cron_instances[$number] = $instance;
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}
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}
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return $cron_instances;
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}
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}
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