Automattic /
jetpack
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like Jetpack_Subscriptions_Widget often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Jetpack_Subscriptions_Widget, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 3 | class Jetpack_Subscriptions_Widget extends WP_Widget { |
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| 4 | static $instance_count = 0; |
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| 5 | /** |
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| 6 | * @var array When printing the submit button, what tags are allowed |
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| 7 | */ |
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| 8 | static $allowed_html_tags_for_submit_button = array( 'br' => array() ); |
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| 9 | |||
| 10 | function __construct() { |
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| 11 | $widget_ops = array( |
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| 12 | 'classname' => 'widget_blog_subscription jetpack_subscription_widget', |
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| 13 | 'description' => __( 'Add an email signup form to allow people to subscribe to your blog.', 'jetpack' ), |
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| 14 | 'customize_selective_refresh' => true, |
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| 15 | ); |
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| 16 | |||
| 17 | $name = self::is_jetpack() ? |
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| 18 | /** This filter is documented in modules/widgets/facebook-likebox.php */ |
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| 19 | apply_filters( 'jetpack_widget_name', __( 'Blog Subscriptions', 'jetpack' ) ) : |
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| 20 | __( 'Follow Blog', 'jetpack' ); |
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| 21 | |||
| 22 | parent::__construct( |
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| 23 | 'blog_subscription', |
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| 24 | $name, |
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| 25 | $widget_ops |
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| 26 | ); |
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| 27 | |||
| 28 | View Code Duplication | if ( self::is_jetpack() && |
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| 29 | ( |
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| 30 | is_active_widget( false, false, $this->id_base ) || |
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| 31 | is_active_widget( false, false, 'monster' ) || |
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| 32 | is_customize_preview() |
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| 33 | ) |
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| 34 | ) { |
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| 35 | add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_style' ) ); |
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| 36 | } |
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| 37 | } |
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| 38 | |||
| 39 | /** |
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| 40 | * Enqueue the form's CSS. |
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| 41 | * |
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| 42 | * @since 4.5.0 |
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| 43 | */ |
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| 44 | function enqueue_style() { |
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| 45 | wp_register_style( |
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| 46 | 'jetpack-subscriptions', |
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| 47 | plugins_url( 'subscriptions.css', __FILE__ ), |
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| 48 | array(), |
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| 49 | JETPACK__VERSION |
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| 50 | ); |
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| 51 | wp_enqueue_style( 'jetpack-subscriptions' ); |
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| 52 | } |
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| 53 | |||
| 54 | /** |
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| 55 | * Renders a full widget either within the context of WordPress widget, or in response to a shortcode. |
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| 56 | * |
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| 57 | * @param array $args Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'. |
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| 58 | * @param array $instance The settings for the particular instance of the widget. |
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| 59 | */ |
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| 60 | function widget( $args, $instance ) { |
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| 61 | if ( self::is_jetpack() && |
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| 62 | /** This filter is documented in modules/contact-form/grunion-contact-form.php */ |
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| 63 | false === apply_filters( 'jetpack_auto_fill_logged_in_user', false ) |
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| 64 | ) { |
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| 65 | $subscribe_email = ''; |
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| 66 | } else { |
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| 67 | $current_user = wp_get_current_user(); |
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| 68 | if ( ! empty( $current_user->user_email ) ) { |
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| 69 | $subscribe_email = esc_attr( $current_user->user_email ); |
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| 70 | } else { |
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| 71 | $subscribe_email = ''; |
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| 72 | } |
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| 73 | } |
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| 74 | |||
| 75 | $stats_action = self::is_jetpack() ? 'jetpack_subscriptions' : 'follow_blog'; |
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| 76 | /** This action is documented in modules/widgets/gravatar-profile.php */ |
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| 77 | do_action( 'jetpack_stats_extra', 'widget_view', $stats_action ); |
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| 78 | |||
| 79 | $after_widget = isset( $args['after_widget'] ) ? $args['after_widget'] : ''; |
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| 80 | $before_widget = isset( $args['before_widget'] ) ? $args['before_widget'] : ''; |
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| 81 | $instance = wp_parse_args( (array) $instance, $this->defaults() ); |
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| 82 | |||
| 83 | echo $before_widget; |
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| 84 | |||
| 85 | Jetpack_Subscriptions_Widget::$instance_count ++; |
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| 86 | |||
| 87 | self::render_widget_title( $args, $instance ); |
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| 88 | |||
| 89 | self::render_widget_status_messages( $instance ); |
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| 90 | |||
| 91 | if ( self::is_current_user_subscribed() ) { |
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| 92 | self::render_widget_already_subscribed( $instance ); |
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| 93 | } else { |
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| 94 | self::render_widget_subscription_form( $args, $instance, $subscribe_email ); |
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| 95 | } |
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| 96 | |||
| 97 | echo "\n" . $after_widget; |
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| 98 | } |
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| 99 | |||
| 100 | /** |
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| 101 | * Prints the widget's title. If show_only_email_and_button is true, we will not show a title. |
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| 102 | * |
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| 103 | * @param array $args Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'. |
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| 104 | * @param array $instance The settings for the particular instance of the widget. |
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| 105 | */ |
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| 106 | static function render_widget_title( $args, $instance ) { |
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| 107 | $show_only_email_and_button = $instance['show_only_email_and_button']; |
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| 108 | $before_title = isset( $args['before_title'] ) ? $args['before_title'] : ''; |
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| 109 | $after_title = isset( $args['after_title'] ) ? $args['after_title'] : ''; |
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| 110 | if ( self::is_wpcom() && ! $show_only_email_and_button ) { |
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| 111 | if ( self::is_current_user_subscribed() ) { |
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| 112 | View Code Duplication | if ( ! empty( $instance['title_following'] ) ) { |
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| 113 | echo $before_title . '<label for="subscribe-field' . ( Jetpack_Subscriptions_Widget::$instance_count > 1 ? '-' . Jetpack_Subscriptions_Widget::$instance_count : '' ) . '">' . esc_attr( $instance['title_following'] ) . '</label>' . $after_title . "\n"; |
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| 114 | } |
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| 115 | View Code Duplication | } else { |
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| 116 | if ( ! empty( $instance['title'] ) ) { |
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| 117 | echo $before_title . '<label for="subscribe-field' . ( Jetpack_Subscriptions_Widget::$instance_count > 1 ? '-' . Jetpack_Subscriptions_Widget::$instance_count : '' ) . '">' . esc_attr( $instance['title'] ) . '</label>' . $after_title . "\n"; |
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| 118 | } |
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| 119 | } |
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| 120 | } |
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| 121 | |||
| 122 | if ( self::is_jetpack() && empty( $instance['show_only_email_and_button'] ) ) { |
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| 123 | echo $args['before_title'] . esc_attr( $instance['title'] ) . $args['after_title'] . "\n"; |
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| 124 | } |
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| 125 | } |
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| 126 | |||
| 127 | /** |
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| 128 | * Prints the subscription block's status messages after someone has attempted to subscribe. |
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| 129 | * Either a success message or an error message. |
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| 130 | * |
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| 131 | * @param array $instance The settings for the particular instance of the widget. |
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| 132 | */ |
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| 133 | static function render_widget_status_messages( $instance ) { |
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| 134 | if ( self::is_jetpack() && isset( $_GET['subscribe'] ) ) { |
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| 135 | $success_message = isset( $instance['success_message'] ) ? stripslashes( $instance['success_message'] ) : ''; |
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| 136 | $subscribers_total = self::fetch_subscriber_count(); |
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| 137 | switch ( $_GET['subscribe'] ) : |
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| 138 | case 'invalid_email' : ?> |
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| 139 | <p class="error"><?php esc_html_e( 'The email you entered was invalid. Please check and try again.', 'jetpack' ); ?></p> |
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| 140 | <?php break; |
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| 141 | case 'opted_out' : ?> |
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| 142 | <p class="error"><?php printf( __( 'The email address has opted out of subscription emails. <br /> You can manage your preferences at <a href="%1$s" title="%2$s" target="_blank">subscribe.wordpress.com</a>', 'jetpack' ), |
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| 143 | 'https://subscribe.wordpress.com/', |
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| 144 | __( 'Manage your email preferences.', 'jetpack' ) |
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| 145 | ); ?></p> |
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| 146 | <?php break; |
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| 147 | case 'already' : ?> |
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| 148 | <p class="error"><?php printf( __( 'You have already subscribed to this site. Please check your inbox. <br /> You can manage your preferences at <a href="%1$s" title="%2$s" target="_blank">subscribe.wordpress.com</a>', 'jetpack' ), |
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| 149 | 'https://subscribe.wordpress.com/', |
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| 150 | __( 'Manage your email preferences.', 'jetpack' ) |
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| 151 | ); ?></p> |
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| 152 | <?php break; |
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| 153 | case 'success' : ?> |
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| 154 | <div class="success"><?php echo wpautop( str_replace( '[total-subscribers]', number_format_i18n( $subscribers_total['value'] ), $success_message ) ); ?></div> |
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| 155 | <?php break; |
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| 156 | default : ?> |
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| 157 | <p class="error"><?php esc_html_e( 'There was an error when subscribing. Please try again.', 'jetpack' ); ?></p> |
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| 158 | <?php break; |
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| 159 | endswitch; |
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| 160 | } |
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| 161 | |||
| 162 | if ( self::is_wpcom() && self::wpcom_has_status_message() ) { |
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| 163 | global $themecolors; |
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| 164 | switch ( $_GET['blogsub'] ) { |
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| 165 | View Code Duplication | case 'confirming': |
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| 166 | echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; |
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| 167 | _e( 'Thanks for subscribing! You’ll get an email with a link to confirm your subscription. If you don’t get it, please <a href="http://en.support.wordpress.com/contact/">contact us</a>.' ); |
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| 168 | echo "</div>"; |
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| 169 | break; |
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| 170 | View Code Duplication | case 'blocked': |
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| 171 | echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; |
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| 172 | _e( 'Subscriptions have been blocked for this email address.' ); |
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| 173 | echo "</div>"; |
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| 174 | break; |
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| 175 | View Code Duplication | case 'flooded': |
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| 176 | echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; |
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| 177 | _e( 'You already have several pending email subscriptions. Approve or delete a few through your <a href="https://subscribe.wordpress.com/">Subscription Manager</a> before attempting to subscribe to more blogs.' ); |
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| 178 | echo "</div>"; |
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| 179 | break; |
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| 180 | case 'spammed': |
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| 181 | echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; |
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| 182 | echo wp_kses_post( sprintf( __( 'Because there are many pending subscriptions for this email address, we have blocked the subscription. Please <a href="%s">activate or delete</a> pending subscriptions before attempting to subscribe.' ), 'https://subscribe.wordpress.com/' ) ); |
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| 183 | echo "</div>"; |
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| 184 | break; |
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| 185 | View Code Duplication | case 'subscribed': |
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| 186 | echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; |
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| 187 | _e( 'You’re already subscribed to this site.' ); |
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| 188 | echo "</div>"; |
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| 189 | break; |
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| 190 | View Code Duplication | case 'pending': |
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| 191 | echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; |
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| 192 | _e( 'You have a pending subscription already; we just sent you another email. Click the link or <a href="http://en.support.wordpress.com/contact/">contact us</a> if you don’t receive it.' ); |
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| 193 | echo "</div>"; |
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| 194 | break; |
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| 195 | View Code Duplication | case 'confirmed': |
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| 196 | echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; |
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| 197 | _e( 'Congrats, you’re subscribed! You’ll get an email with the details of your subscription and an unsubscribe link.' ); |
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| 198 | echo "</div>"; |
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| 199 | break; |
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| 200 | } |
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| 201 | } |
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| 202 | } |
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| 203 | |||
| 204 | /** |
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| 205 | * Renders a message to folks who are already subscribed. |
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| 206 | * |
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| 207 | * @param array $instance The settings for the particular instance of the widget. |
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| 208 | * |
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| 209 | * @return void |
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| 210 | */ |
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| 211 | static function render_widget_already_subscribed( $instance ) { |
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| 212 | if ( self::is_wpcom() ) { |
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| 213 | $subscribers_total = self::fetch_subscriber_count(); |
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| 214 | $edit_subs_url = 'https://wordpress.com/following/edit/'; |
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| 215 | if ( function_exists( 'localized_wpcom_url' ) ) { |
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| 216 | $edit_subs_url = localized_wpcom_url( http() . '://wordpress.com/following/edit/', get_user_locale() ); |
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| 217 | } |
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| 218 | $show_subscribers_total = (bool) $instance['show_subscribers_total']; |
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| 219 | if ( $show_subscribers_total && $subscribers_total > 1 ) : |
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| 220 | $subscribers_not_me = $subscribers_total - 1; |
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| 221 | /* translators: %s: number of folks following the blog */ |
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| 222 | ?> |
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| 223 | <p><?php printf( _n( 'You are following this blog, along with %s other amazing person (<a href="%s">manage</a>).', 'You are following this blog, along with %s other amazing people (<a href="%s">manage</a>).', $subscribers_not_me ), number_format_i18n( $subscribers_not_me ), $edit_subs_url ) ?></p><?php |
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| 224 | else : |
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| 225 | ?> |
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| 226 | <p><?php printf( __( 'You are following this blog (<a href="%s">manage</a>).' ), $edit_subs_url ) ?></p><?php |
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| 227 | endif; |
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| 228 | } |
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| 229 | } |
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| 230 | |||
| 231 | /** |
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| 232 | * Renders a form allowing folks to subscribe to the blog. |
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| 233 | * |
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| 234 | * @param array $args Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'. |
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| 235 | * @param array $instance The settings for the particular instance of the widget. |
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| 236 | * @param string $subscribe_email The email to use to prefill the form. |
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| 237 | */ |
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| 238 | static function render_widget_subscription_form( $args, $instance, $subscribe_email ) { |
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| 239 | $show_only_email_and_button = $instance['show_only_email_and_button']; |
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| 240 | $subscribe_logged_in = isset( $instance['subscribe_logged_in'] ) ? stripslashes( $instance['subscribe_logged_in'] ) : ''; |
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| 241 | $show_subscribers_total = (bool) $instance['show_subscribers_total']; |
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| 242 | $subscribe_text = empty( $instance['show_only_email_and_button'] ) ? |
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| 243 | stripslashes( $instance['subscribe_text'] ) : |
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| 244 | false; |
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| 245 | $referer = ( is_ssl() ? 'https' : 'http' ) . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; |
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| 246 | $source = 'widget'; |
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| 247 | $widget_id = esc_attr( ! empty( $args['widget_id'] ) ? esc_attr( $args['widget_id'] ) : mt_rand( 450, 550 ) ); |
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| 248 | $subscribe_button = ! empty( $instance['submit_button_text'] ) ? $instance['submit_button_text'] : $instance['subscribe_button']; |
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| 249 | $subscribers_total = self::fetch_subscriber_count(); |
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| 250 | $subscribe_placeholder = isset( $instance['subscribe_placeholder'] ) ? stripslashes( $instance['subscribe_placeholder'] ) : ''; |
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| 251 | $submit_button_classes = isset( $instance['submit_button_classes'] ) ? $instance['submit_button_classes'] : ''; |
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| 252 | $submit_button_styles = isset( $instance['submit_button_styles'] ) ? $instance['submit_button_styles'] : ''; |
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| 253 | |||
| 254 | if ( self::is_wpcom() && ! self::wpcom_has_status_message() ) { |
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| 255 | global $current_blog; |
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| 256 | $url = defined( 'SUBSCRIBE_BLOG_URL' ) ? SUBSCRIBE_BLOG_URL : ''; |
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| 257 | ?> |
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| 258 | <form action="<?php echo $url; ?>" method="post" accept-charset="utf-8" |
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| 259 | id="subscribe-blog<?php if ( Jetpack_Subscriptions_Widget::$instance_count > 1 ) { |
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| 260 | echo '-' . Jetpack_Subscriptions_Widget::$instance_count; |
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| 261 | } ?>"> |
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| 262 | <?php if ( is_user_logged_in() ) : ?> |
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| 263 | <?php |
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| 264 | if ( ! $show_only_email_and_button ) { |
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| 265 | echo wpautop( $subscribe_logged_in ); |
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| 266 | } |
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| 267 | View Code Duplication | if ( $show_subscribers_total && $subscribers_total ) { |
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| 268 | /* translators: %s: number of folks following the blog */ |
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| 269 | echo wpautop( sprintf( _n( 'Join %s other follower', 'Join %s other followers', $subscribers_total ), number_format_i18n( $subscribers_total ) ) ); |
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| 270 | } |
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| 271 | ?> |
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| 272 | <?php else : ?> |
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| 273 | <?php |
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| 274 | if ( ! $show_only_email_and_button ) { |
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| 275 | echo wpautop( $subscribe_text ); |
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| 276 | } |
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| 277 | View Code Duplication | if ( $show_subscribers_total && $subscribers_total ) { |
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| 278 | /* translators: %s: number of folks following the blog */ |
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| 279 | echo wpautop( sprintf( _n( 'Join %s other follower', 'Join %s other followers', $subscribers_total ), number_format_i18n( $subscribers_total ) ) ); |
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| 280 | } |
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| 281 | ?> |
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| 282 | <p><input type="text" name="email" style="width: 95%; padding: 1px 2px" |
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| 283 | placeholder="<?php esc_attr_e( 'Enter your email address' ); ?>" value="" |
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| 284 | id="subscribe-field<?php if ( Jetpack_Subscriptions_Widget::$instance_count > 1 ) { |
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| 285 | echo '-' . Jetpack_Subscriptions_Widget::$instance_count; |
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| 286 | } ?>"/></p> |
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| 287 | <?php endif; ?> |
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| 288 | |||
| 289 | <p> |
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| 290 | <input type="hidden" name="action" value="subscribe"/> |
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| 291 | <input type="hidden" name="blog_id" value="<?php echo (int) $current_blog->blog_id; ?>"/> |
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| 292 | <input type="hidden" name="source" value="<?php echo esc_url( $referer ); ?>"/> |
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| 293 | <input type="hidden" name="sub-type" value="<?php echo esc_attr( $source ); ?>"/> |
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| 294 | <input type="hidden" name="redirect_fragment" value="<?php echo esc_attr( $widget_id ); ?>"/> |
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| 295 | <?php wp_nonce_field( 'blogsub_subscribe_' . $current_blog->blog_id, '_wpnonce', false ); ?> |
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| 296 | <button type="submit" |
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| 297 | <?php if ( ! empty( $submit_button_classes ) ) { ?> |
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| 298 | class="<?php echo esc_attr( $submit_button_classes ); ?>" |
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| 299 | <?php }; ?> |
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| 300 | <?php if ( ! empty( $submit_button_styles ) ) { ?> |
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| 301 | style="<?php echo esc_attr( $submit_button_styles ); ?>" |
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| 302 | <?php }; ?> |
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| 303 | > |
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| 304 | <?php |
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| 305 | echo wp_kses( |
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| 306 | $subscribe_button, |
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| 307 | self::$allowed_html_tags_for_submit_button |
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| 308 | ); |
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| 309 | ?> |
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| 310 | </button> |
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| 311 | </p> |
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| 312 | </form> |
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| 313 | <?php |
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| 314 | } |
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| 315 | |||
| 316 | if ( self::is_jetpack() ) { |
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| 317 | /** |
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| 318 | * Filter the subscription form's ID prefix. |
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| 319 | * |
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| 320 | * @module subscriptions |
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| 321 | * |
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| 322 | * @since 2.7.0 |
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| 323 | * |
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| 324 | * @param string subscribe-field Subscription form field prefix. |
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| 325 | * @param int $widget_id Widget ID. |
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| 326 | */ |
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| 327 | $subscribe_field_id = apply_filters( 'subscribe_field_id', 'subscribe-field', $widget_id ); |
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| 328 | ?> |
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| 329 | <form action="#" method="post" accept-charset="utf-8" id="subscribe-blog-<?php echo $widget_id; ?>"> |
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| 330 | <?php |
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| 331 | if ( $subscribe_text && ( ! isset ( $_GET['subscribe'] ) || 'success' != $_GET['subscribe'] ) ) { |
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|
|
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| 332 | ?> |
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| 333 | <div id="subscribe-text"><?php echo wpautop( str_replace( '[total-subscribers]', number_format_i18n( $subscribers_total['value'] ), $subscribe_text ) ); ?></div><?php |
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| 334 | } |
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| 335 | |||
| 336 | if ( $show_subscribers_total && 0 < $subscribers_total['value'] ) { |
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| 337 | /* translators: %s: number of folks following the blog */ |
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| 338 | echo wpautop( sprintf( _n( 'Join %s other subscriber', 'Join %s other subscribers', $subscribers_total['value'], 'jetpack' ), number_format_i18n( $subscribers_total['value'] ) ) ); |
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| 339 | } |
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| 340 | if ( ! isset ( $_GET['subscribe'] ) || 'success' != $_GET['subscribe'] ) { ?> |
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| 341 | <p id="subscribe-email"> |
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| 342 | <label id="jetpack-subscribe-label" |
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| 343 | class="screen-reader-text" |
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| 344 | for="<?php echo esc_attr( $subscribe_field_id ) . '-' . esc_attr( $widget_id ); ?>"> |
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| 345 | <?php echo ! empty( $subscribe_placeholder ) ? esc_html( $subscribe_placeholder ) : esc_html__( 'Email Address:', 'jetpack' ); ?> |
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| 346 | </label> |
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| 347 | <input type="email" name="email" required="required" class="required" |
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| 348 | value="<?php echo esc_attr( $subscribe_email ); ?>" |
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| 349 | id="<?php echo esc_attr( $subscribe_field_id ) . '-' . esc_attr( $widget_id ); ?>" |
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| 350 | placeholder="<?php echo esc_attr( $subscribe_placeholder ); ?>"/> |
||
| 351 | </p> |
||
| 352 | |||
| 353 | <p id="subscribe-submit"> |
||
| 354 | <input type="hidden" name="action" value="subscribe"/> |
||
| 355 | <input type="hidden" name="source" value="<?php echo esc_url( $referer ); ?>"/> |
||
| 356 | <input type="hidden" name="sub-type" value="<?php echo esc_attr( $source ); ?>"/> |
||
| 357 | <input type="hidden" name="redirect_fragment" value="<?php echo $widget_id; ?>"/> |
||
| 358 | <?php |
||
| 359 | if ( is_user_logged_in() ) { |
||
| 360 | wp_nonce_field( 'blogsub_subscribe_' . get_current_blog_id(), '_wpnonce', false ); |
||
| 361 | } |
||
| 362 | ?> |
||
| 363 | <button type="submit" |
||
| 364 | <?php if ( ! empty( $submit_button_classes ) ) { ?> |
||
| 365 | class="<?php echo esc_attr( $submit_button_classes ); ?>" |
||
| 366 | <?php }; ?> |
||
| 367 | <?php if ( ! empty( $submit_button_styles ) ) { ?> |
||
| 368 | style="<?php echo esc_attr( $submit_button_styles ); ?>" |
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| 369 | <?php }; ?> |
||
| 370 | name="jetpack_subscriptions_widget" |
||
| 371 | > |
||
| 372 | <?php |
||
| 373 | echo wp_kses( |
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| 374 | $subscribe_button, |
||
| 375 | self::$allowed_html_tags_for_submit_button |
||
| 376 | ); ?> |
||
| 377 | </button> |
||
| 378 | </p> |
||
| 379 | <?php } ?> |
||
| 380 | </form> |
||
| 381 | <?php } |
||
| 382 | } |
||
| 383 | |||
| 384 | /** |
||
| 385 | * Determines if the current user is subscribed to the blog. |
||
| 386 | * |
||
| 387 | * @return bool Is the person already subscribed. |
||
| 388 | */ |
||
| 389 | static function is_current_user_subscribed() { |
||
| 398 | |||
| 399 | /** |
||
| 400 | * Is this script running in the wordpress.com environment? |
||
| 401 | * |
||
| 402 | * @return bool |
||
| 403 | */ |
||
| 404 | static function is_wpcom() { |
||
| 407 | |||
| 408 | /** |
||
| 409 | * Is this script running in a self-hosted environment? |
||
| 410 | * |
||
| 411 | * @return bool |
||
| 412 | */ |
||
| 413 | static function is_jetpack() { |
||
| 416 | |||
| 417 | /** |
||
| 418 | * Used to determine if there is a valid status slug within the wordpress.com environment. |
||
| 419 | * |
||
| 420 | * @return bool |
||
| 421 | */ |
||
| 422 | static function wpcom_has_status_message() { |
||
| 437 | |||
| 438 | /** |
||
| 439 | * Determine the amount of folks currently subscribed to the blog. |
||
| 440 | * |
||
| 441 | * @return int|array |
||
| 442 | */ |
||
| 443 | static function fetch_subscriber_count() { |
||
| 479 | |||
| 480 | /** |
||
| 481 | * Updates a particular instance of a widget when someone saves it in wp-admin. |
||
| 482 | * |
||
| 483 | * @param array $new_instance |
||
| 484 | * @param array $old_instance |
||
| 485 | * |
||
| 486 | * @return array |
||
| 487 | */ |
||
| 488 | function update( $new_instance, $old_instance ) { |
||
| 511 | |||
| 512 | /** |
||
| 513 | * The default args for rendering a subscription form. |
||
| 514 | * |
||
| 515 | * @return array |
||
| 516 | */ |
||
| 517 | static function defaults() { |
||
| 541 | |||
| 542 | /** |
||
| 543 | * Renders the widget's options form in wp-admin. |
||
| 544 | * |
||
| 545 | * @param array $instance |
||
| 546 | */ |
||
| 547 | function form( $instance ) { |
||
| 676 | } |
||
| 677 | |||
| 678 | if ( defined( 'IS_WPCOM' ) && IS_WPCOM && function_exists( 'class_alias' ) ) { |
||
| 679 | class_alias( 'Jetpack_Subscriptions_Widget', 'Blog_Subscription_Widget' ); |
||
| 680 | } |
||
| 681 | |||
| 682 | function get_jetpack_blog_subscriptions_widget_classname() { |
||
| 683 | return ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ? |
||
| 756 |
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In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
stringvalues, the empty string''is a special case, in particular the following results might be unexpected: