| 1 |
<?php |
| 2 |
/** |
| 3 |
* Register the widget for use in Appearance -> Widgets |
| 4 |
*/ |
| 5 |
add_action( 'widgets_init', 'jetpack_goodreads_widget_init' ); |
| 6 |
|
| 7 |
function jetpack_goodreads_widget_init() { |
| 8 |
register_widget( 'WPCOM_Widget_Goodreads' ); |
| 9 |
} |
| 10 |
|
| 11 |
/** |
| 12 |
* Goodreads widget class |
| 13 |
* Display a user's Goodreads shelf. |
| 14 |
* Customize user_id, title, and shelf |
| 15 |
* |
| 16 |
*/ |
| 17 |
class WPCOM_Widget_Goodreads extends WP_Widget { |
| 18 |
|
| 19 |
private $goodreads_widget_id = 0; |
| 20 |
|
| 21 |
function __construct() { |
| 22 |
parent::__construct( |
| 23 |
'wpcom-goodreads', |
| 24 |
/** This filter is documented in modules/widgets/facebook-likebox.php */ |
| 25 |
apply_filters( 'jetpack_widget_name', __( 'Goodreads', 'jetpack' ) ), |
| 26 |
array( |
| 27 |
'classname' => 'widget_goodreads', |
| 28 |
'description' => __( 'Display your books from Goodreads', 'jetpack' ), |
| 29 |
'customize_selective_refresh' => true, |
| 30 |
) |
| 31 |
); |
| 32 |
// For user input sanitization and display |
| 33 |
$this->shelves = array( |
| 34 |
'read' => _x( 'Read', 'past participle: books I have read', 'jetpack' ), |
| 35 |
'currently-reading' => __( 'Currently Reading', 'jetpack' ), |
| 36 |
'to-read' => _x( 'To Read', 'my list of books to read', 'jetpack' ), |
| 37 |
); |
| 38 |
|
| 39 |
if ( is_active_widget( '', '', 'wpcom-goodreads' ) || is_customize_preview() ) { |
| 40 |
add_action( 'wp_print_styles', array( $this, 'enqueue_style' ) ); |
| 41 |
} |
| 42 |
} |
| 43 |
|
| 44 |
function enqueue_style() { |
| 45 |
wp_enqueue_style( 'goodreads-widget', plugins_url( 'goodreads/css/goodreads.css', __FILE__ ) ); |
| 46 |
wp_style_add_data( 'goodreads-widget', 'rtl', 'replace' ); |
| 47 |
} |
| 48 |
|
| 49 |
function widget( $args, $instance ) { |
| 50 |
/** This action is documented in modules/widgets/gravatar-profile.php */ |
| 51 |
do_action( 'jetpack_stats_extra', 'widget_view', 'goodreads' ); |
| 52 |
|
| 53 |
/** This filter is documented in core/src/wp-includes/default-widgets.php */ |
| 54 |
$title = apply_filters( 'widget_title', isset( $instance['title'] ) ? $instance['title'] : '' ); |
| 55 |
|
| 56 |
if ( empty( $instance['user_id'] ) || 'invalid' === $instance['user_id'] ) { |
| 57 |
if ( current_user_can( 'edit_theme_options' ) ) { |
| 58 |
echo $args['before_widget']; |
| 59 |
echo '<p>' . sprintf( |
| 60 |
__( 'You need to enter your numeric user ID for the <a href="%1$s">Goodreads Widget</a> to work correctly. <a href="%2$s" target="_blank">Full instructions</a>.', 'jetpack' ), |
| 61 |
esc_url( admin_url( 'widgets.php' ) ), |
| 62 |
'https://support.wordpress.com/widgets/goodreads-widget/#goodreads-user-id' |
| 63 |
) . '</p>'; |
| 64 |
echo $args['after_widget']; |
| 65 |
} |
| 66 |
return; |
| 67 |
} |
| 68 |
|
| 69 |
if ( ! array_key_exists( $instance['shelf'], $this->shelves ) ) { |
| 70 |
return; |
| 71 |
} |
| 72 |
|
| 73 |
$instance['user_id'] = absint( $instance['user_id'] ); |
| 74 |
|
| 75 |
// Set widget ID based on shelf. |
| 76 |
$this->goodreads_widget_id = $instance['user_id'] . '_' . $instance['shelf']; |
| 77 |
|
| 78 |
if ( empty( $title ) ) { |
| 79 |
$title = esc_html__( 'Goodreads', 'jetpack' ); |
| 80 |
} |
| 81 |
|
| 82 |
echo $args['before_widget']; |
| 83 |
echo $args['before_title'] . $title . $args['after_title']; |
| 84 |
|
| 85 |
$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 ); |
| 86 |
|
| 87 |
echo '<div class="gr_custom_widget" id="gr_custom_widget_' . esc_attr( $this->goodreads_widget_id ) . '"></div>' . "\n"; |
| 88 |
echo '<script src="' . esc_url( $goodreads_url ) . '"></script>' . "\n"; |
| 89 |
|
| 90 |
echo $args['after_widget']; |
| 91 |
} |
| 92 |
|
| 93 |
function goodreads_user_id_exists( $user_id ) { |
| 94 |
$url = "https://www.goodreads.com/user/show/$user_id/"; |
| 95 |
$response = wp_remote_head( |
| 96 |
$url, array( |
| 97 |
'httpversion' => '1.1', |
| 98 |
'timeout' => 3, |
| 99 |
'redirection' => 2, |
| 100 |
) |
| 101 |
); |
| 102 |
if ( 200 === wp_remote_retrieve_response_code( $response ) ) { |
| 103 |
return true; |
| 104 |
} else { |
| 105 |
return false; |
| 106 |
} |
| 107 |
} |
| 108 |
|
| 109 |
function update( $new_instance, $old_instance ) { |
| 110 |
$instance = $old_instance; |
| 111 |
|
| 112 |
$instance['user_id'] = trim( wp_kses( stripslashes( $new_instance['user_id'] ), array() ) ); |
| 113 |
if ( ! empty( $instance['user_id'] ) && ( ! isset( $old_instance['user_id'] ) || $instance['user_id'] !== $old_instance['user_id'] ) ) { |
| 114 |
if ( ! $this->goodreads_user_id_exists( $instance['user_id'] ) ) { |
| 115 |
$instance['user_id'] = 'invalid'; |
| 116 |
} |
| 117 |
} |
| 118 |
$instance['title'] = wp_kses( stripslashes( $new_instance['title'] ), array() ); |
| 119 |
$shelf = wp_kses( stripslashes( $new_instance['shelf'] ), array() ); |
| 120 |
if ( array_key_exists( $shelf, $this->shelves ) ) { |
| 121 |
$instance['shelf'] = $shelf; |
| 122 |
} |
| 123 |
|
| 124 |
return $instance; |
| 125 |
} |
| 126 |
|
| 127 |
function form( $instance ) { |
| 128 |
//Defaults |
| 129 |
$instance = wp_parse_args( |
| 130 |
(array) $instance, array( |
| 131 |
'user_id' => '', |
| 132 |
'title' => 'Goodreads', |
| 133 |
'shelf' => 'read', |
| 134 |
) |
| 135 |
); |
| 136 |
|
| 137 |
echo '<p><label for="' . esc_attr( $this->get_field_id( 'title' ) ) . '">' . esc_html__( 'Title:', 'jetpack' ) . ' |
| 138 |
<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'] ) . '" /> |
| 139 |
</label></p> |
| 140 |
<p><label for="' . esc_attr( $this->get_field_id( 'user_id' ) ) . '">'; |
| 141 |
printf( __( 'Goodreads numeric user ID <a href="%s" target="_blank">(instructions)</a>:', 'jetpack' ), 'https://en.support.wordpress.com/widgets/goodreads-widget/#goodreads-user-id' ); |
| 142 |
if ( 'invalid' === $instance['user_id'] ) { |
| 143 |
printf( '<br /><small class="error">%s</small> ', __( 'Invalid User ID, please verify and re-enter your Goodreads numeric user ID.', 'jetpack' ) ); |
| 144 |
$instance['user_id'] = ''; |
| 145 |
} |
| 146 |
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'] ) . '" /> |
| 147 |
</label></p> |
| 148 |
<p><label for="' . esc_attr( $this->get_field_id( 'shelf' ) ) . '">' . esc_html__( 'Shelf:', 'jetpack' ) . ' |
| 149 |
<select class="widefat" id="' . esc_attr( $this->get_field_id( 'shelf' ) ) . '" name="' . esc_attr( $this->get_field_name( 'shelf' ) ) . '" >'; |
| 150 |
foreach ( $this->shelves as $_shelf_value => $_shelf_display ) { |
| 151 |
echo "\t<option value='" . esc_attr( $_shelf_value ) . "'" . selected( $_shelf_value, $instance['shelf'] ) . '>' . $_shelf_display . "</option>\n"; |
| 152 |
} |
| 153 |
echo '</select> |
| 154 |
</label></p> |
| 155 |
'; |
| 156 |
} |
| 157 |
} |
| 158 |
|
