143 lines
6.1 KiB
PHP
143 lines
6.1 KiB
PHP
<?php
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/**
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* Register the widget for use in Appearance -> Widgets
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*/
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add_action( 'widgets_init', 'jetpack_goodreads_widget_init' );
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function jetpack_goodreads_widget_init() {
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register_widget( 'WPCOM_Widget_Goodreads' );
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}
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/**
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* Goodreads widget class
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* Display a user's Goodreads shelf.
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* Customize user_id, title, and shelf
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*
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*/
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class WPCOM_Widget_Goodreads extends WP_Widget {
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private $goodreads_widget_id = 0;
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function __construct() {
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parent::__construct(
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'wpcom-goodreads',
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/** This filter is documented in modules/widgets/facebook-likebox.php */
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apply_filters( 'jetpack_widget_name', __( 'Goodreads', 'jetpack' ) ),
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array(
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'classname' => 'widget_goodreads',
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'description' => __( 'Display your books from Goodreads', 'jetpack' ),
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'customize_selective_refresh' => true,
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)
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);
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// For user input sanitization and display
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$this->shelves = array(
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'read' => _x( 'Read', 'past participle: books I have read', 'jetpack' ),
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'currently-reading' => __( 'Currently Reading', 'jetpack' ),
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'to-read' => _x( 'To Read', 'my list of books to read', 'jetpack' )
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);
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if ( is_active_widget( '', '', 'wpcom-goodreads' ) || is_customize_preview() ) {
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add_action( 'wp_print_styles', array( $this, 'enqueue_style' ) );
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}
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}
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function enqueue_style() {
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if ( is_rtl() ) {
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wp_enqueue_style( 'goodreads-widget', plugins_url( 'goodreads/css/rtl/goodreads-rtl.css', __FILE__ ) );
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} else {
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wp_enqueue_style( 'goodreads-widget', plugins_url( 'goodreads/css/goodreads.css', __FILE__ ) );
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}
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}
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function widget( $args, $instance ) {
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/** This filter is documented in core/src/wp-includes/default-widgets.php */
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$title = apply_filters( 'widget_title', isset( $instance['title'] ) ? $instance['title'] : '' );
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if ( empty( $instance['user_id'] ) || 'invalid' === $instance['user_id'] ) {
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if ( current_user_can('edit_theme_options') ) {
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echo $args['before_widget'];
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echo '<p>' . sprintf(
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__( 'You need to enter your numeric user ID for the <a href="%1$s">Goodreads Widget</a> to work correctly. <a href="%2$s" target="_blank">Full instructions</a>.', 'jetpack' ),
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esc_url( admin_url( 'widgets.php' ) ),
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'http://support.wordpress.com/widgets/goodreads-widget/#goodreads-user-id'
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) . '</p>';
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echo $args['after_widget'];
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}
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return;
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}
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if ( !array_key_exists( $instance['shelf'], $this->shelves ) )
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return;
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$instance['user_id'] = absint( $instance['user_id'] );
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// Set widget ID based on shelf.
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$this->goodreads_widget_id = $instance['user_id'] . '_' . $instance['shelf'];
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if ( empty( $title ) ) $title = esc_html__( 'Goodreads', 'jetpack' );
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echo $args['before_widget'];
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echo $args['before_title'] . $title . $args['after_title'];
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$goodreads_url = 'https://www.goodreads.com/review/custom_widget/' . urlencode( $instance['user_id'] ) . '.' . urlencode( $instance['title'] ) . ':%20' . urlencode( $instance['shelf'] ) . '?cover_position=&cover_size=small&num_books=5&order=d&shelf=' . urlencode( $instance['shelf'] ) . '&sort=date_added&widget_bg_transparent=&widget_id=' . esc_attr( $this->goodreads_widget_id ) ;
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echo '<div class="gr_custom_widget" id="gr_custom_widget_' . esc_attr( $this->goodreads_widget_id ). '"></div>' . "\n";
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echo '<script src="' . esc_url( $goodreads_url ) . '"></script>' . "\n";
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echo $args['after_widget'];
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/** This action is already documented in modules/widgets/gravatar-profile.php */
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do_action( 'jetpack_stats_extra', 'widget', 'goodreads' );
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}
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function goodreads_user_id_exists( $user_id ) {
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$url = "http://www.goodreads.com/user/show/$user_id/";
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$response = wp_remote_head( $url, array( 'httpversion'=>'1.1', 'timeout'=>3, 'redirection'=> 2 ) );
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if ( wp_remote_retrieve_response_code( $response ) === 200 )
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return true;
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else
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return false;
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}
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function update( $new_instance, $old_instance ) {
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$instance = $old_instance;
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$instance['user_id'] = trim( wp_kses( stripslashes( $new_instance['user_id'] ), array() ) );
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if ( ! empty( $instance['user_id'] ) && ( ! isset( $old_instance['user_id'] ) || $instance['user_id'] !== $old_instance['user_id'] ) ) {
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if ( ! $this->goodreads_user_id_exists( $instance['user_id'] ) ) {
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$instance['user_id'] = 'invalid';
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}
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}
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$instance['title'] = wp_kses( stripslashes( $new_instance['title'] ), array() );
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$shelf = wp_kses( stripslashes( $new_instance['shelf'] ), array() );
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if ( array_key_exists( $shelf, $this->shelves ) )
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$instance['shelf'] = $shelf;
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return $instance;
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}
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function form( $instance ) {
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//Defaults
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$instance = wp_parse_args( (array) $instance, array( 'user_id' => '', 'title' => 'Goodreads', 'shelf' => 'read' ) );
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echo '<p><label for="' . esc_attr( $this->get_field_id( 'title' ) ) . '">' . esc_html__( 'Title:', 'jetpack' ) . '
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<input class="widefat" id="' . esc_attr( $this->get_field_id( 'title' ) ) . '" name="' . esc_attr( $this->get_field_name( 'title' ) ) . '" type="text" value="' . esc_attr( $instance['title'] ) . '" />
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</label></p>
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<p><label for="' . esc_attr( $this->get_field_id( 'user_id' ) ) . '">';
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printf( __( 'Goodreads numeric user ID <a href="%s" target="_blank">(instructions)</a>:', 'jetpack' ), 'https://en.support.wordpress.com/widgets/goodreads-widget/#goodreads-user-id' );
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if ( 'invalid' === $instance['user_id'] ) {
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printf( '<br /><small class="error">%s</small> ', __( 'Invalid User ID, please verify and re-enter your Goodreads numeric user ID.', 'jetpack' ) );
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$instance['user_id'] = '';
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}
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echo '<input class="widefat" id="' . esc_attr( $this->get_field_id( 'user_id' ) ) . '" name="' . esc_attr( $this->get_field_name( 'user_id' ) ) . '" type="text" value="' . esc_attr( $instance['user_id'] ) . '" />
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</label></p>
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<p><label for="' . esc_attr( $this->get_field_id( 'shelf' ) ) . '">' . esc_html__( 'Shelf:', 'jetpack' ) . '
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<select class="widefat" id="' . esc_attr( $this->get_field_id( 'shelf' ) ) . '" name="' . esc_attr( $this->get_field_name( 'shelf' ) ) . '" >';
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foreach( $this->shelves as $_shelf_value => $_shelf_display ) {
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echo "\t<option value='" . esc_attr( $_shelf_value ) . "'" . selected( $_shelf_value, $instance['shelf'] ) . ">" . $_shelf_display . "</option>\n";
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}
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echo '</select>
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</label></p>
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';
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}
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}
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