diff options
Diffstat (limited to 'plugins/jetpack/modules/subscriptions')
| -rw-r--r-- | plugins/jetpack/modules/subscriptions/readme.md | 12 | ||||
| -rw-r--r-- | plugins/jetpack/modules/subscriptions/subscriptions.css | 22 | ||||
| -rw-r--r-- | plugins/jetpack/modules/subscriptions/views.php | 755 |
3 files changed, 789 insertions, 0 deletions
diff --git a/plugins/jetpack/modules/subscriptions/readme.md b/plugins/jetpack/modules/subscriptions/readme.md new file mode 100644 index 00000000..44680150 --- /dev/null +++ b/plugins/jetpack/modules/subscriptions/readme.md @@ -0,0 +1,12 @@ +## Assets for Subscriptions + +### subscriptions.css + +CSS required to render the subscription widget + +### views.php + +This file handles the registration of various subscriptions +views, i.e. a widget and a block for the post editor. + +This file is shared with wordpress.com diff --git a/plugins/jetpack/modules/subscriptions/subscriptions.css b/plugins/jetpack/modules/subscriptions/subscriptions.css index feda9836..2bd1bd23 100644 --- a/plugins/jetpack/modules/subscriptions/subscriptions.css +++ b/plugins/jetpack/modules/subscriptions/subscriptions.css @@ -2,6 +2,28 @@ width: 95%; } +.comment-subscription-form { + margin-bottom: 1em; +} + .comment-subscription-form .subscribe-label { display: inline !important; } + +/* +Text meant only for screen readers. +Provides support for themes that do not bundle this CSS yet. +@see https://make.wordpress.org/accessibility/2015/02/09/hiding-text-for-screen-readers-with-wordpress-core/ +***********************************/ +.screen-reader-text { + border: 0; + clip: rect(1px, 1px, 1px, 1px); + clip-path: inset(50%); + height: 1px; + margin: -1px; + overflow: hidden; + padding: 0; + position: absolute ! important; + width: 1px; + word-wrap: normal ! important; +} diff --git a/plugins/jetpack/modules/subscriptions/views.php b/plugins/jetpack/modules/subscriptions/views.php new file mode 100644 index 00000000..6a332f8f --- /dev/null +++ b/plugins/jetpack/modules/subscriptions/views.php @@ -0,0 +1,755 @@ +<?php + +class Jetpack_Subscriptions_Widget extends WP_Widget { + static $instance_count = 0; + /** + * @var array When printing the submit button, what tags are allowed + */ + static $allowed_html_tags_for_submit_button = array( 'br' => array() ); + + function __construct() { + $widget_ops = array( + 'classname' => 'widget_blog_subscription jetpack_subscription_widget', + 'description' => __( 'Add an email signup form to allow people to subscribe to your blog.', 'jetpack' ), + 'customize_selective_refresh' => true, + ); + + $name = self::is_jetpack() ? + /** This filter is documented in modules/widgets/facebook-likebox.php */ + apply_filters( 'jetpack_widget_name', __( 'Blog Subscriptions', 'jetpack' ) ) : + __( 'Follow Blog', 'jetpack' ); + + parent::__construct( + 'blog_subscription', + $name, + $widget_ops + ); + + if ( self::is_jetpack() && + ( + is_active_widget( false, false, $this->id_base ) || + is_active_widget( false, false, 'monster' ) || + is_customize_preview() + ) + ) { + add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_style' ) ); + } + } + + /** + * Enqueue the form's CSS. + * + * @since 4.5.0 + */ + function enqueue_style() { + wp_register_style( + 'jetpack-subscriptions', + plugins_url( 'subscriptions.css', __FILE__ ), + array(), + JETPACK__VERSION + ); + wp_enqueue_style( 'jetpack-subscriptions' ); + } + + /** + * Renders a full widget either within the context of WordPress widget, or in response to a shortcode. + * + * @param array $args Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'. + * @param array $instance The settings for the particular instance of the widget. + */ + function widget( $args, $instance ) { + if ( self::is_jetpack() && + /** This filter is documented in modules/contact-form/grunion-contact-form.php */ + false === apply_filters( 'jetpack_auto_fill_logged_in_user', false ) + ) { + $subscribe_email = ''; + } else { + $current_user = wp_get_current_user(); + if ( ! empty( $current_user->user_email ) ) { + $subscribe_email = esc_attr( $current_user->user_email ); + } else { + $subscribe_email = ''; + } + } + + $stats_action = self::is_jetpack() ? 'jetpack_subscriptions' : 'follow_blog'; + /** This action is documented in modules/widgets/gravatar-profile.php */ + do_action( 'jetpack_stats_extra', 'widget_view', $stats_action ); + + $after_widget = isset( $args['after_widget'] ) ? $args['after_widget'] : ''; + $before_widget = isset( $args['before_widget'] ) ? $args['before_widget'] : ''; + $instance = wp_parse_args( (array) $instance, $this->defaults() ); + + echo $before_widget; + + Jetpack_Subscriptions_Widget::$instance_count ++; + + self::render_widget_title( $args, $instance ); + + self::render_widget_status_messages( $instance ); + + if ( self::is_current_user_subscribed() ) { + self::render_widget_already_subscribed( $instance ); + } else { + self::render_widget_subscription_form( $args, $instance, $subscribe_email ); + } + + echo "\n" . $after_widget; + } + + /** + * Prints the widget's title. If show_only_email_and_button is true, we will not show a title. + * + * @param array $args Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'. + * @param array $instance The settings for the particular instance of the widget. + */ + static function render_widget_title( $args, $instance ) { + $show_only_email_and_button = $instance['show_only_email_and_button']; + $before_title = isset( $args['before_title'] ) ? $args['before_title'] : ''; + $after_title = isset( $args['after_title'] ) ? $args['after_title'] : ''; + if ( self::is_wpcom() && ! $show_only_email_and_button ) { + if ( self::is_current_user_subscribed() ) { + if ( ! empty( $instance['title_following'] ) ) { + 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"; + } + } else { + if ( ! empty( $instance['title'] ) ) { + 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"; + } + } + } + + if ( self::is_jetpack() && empty( $instance['show_only_email_and_button'] ) ) { + echo $args['before_title'] . esc_attr( $instance['title'] ) . $args['after_title'] . "\n"; + } + } + + /** + * Prints the subscription block's status messages after someone has attempted to subscribe. + * Either a success message or an error message. + * + * @param array $instance The settings for the particular instance of the widget. + */ + static function render_widget_status_messages( $instance ) { + if ( self::is_jetpack() && isset( $_GET['subscribe'] ) ) { + $success_message = isset( $instance['success_message'] ) ? stripslashes( $instance['success_message'] ) : ''; + $subscribers_total = self::fetch_subscriber_count(); + switch ( $_GET['subscribe'] ) : + case 'invalid_email' : ?> + <p class="error"><?php esc_html_e( 'The email you entered was invalid. Please check and try again.', 'jetpack' ); ?></p> + <?php break; + case 'opted_out' : ?> + <p class="error"><?php printf( __( 'The email address has opted out of subscription emails. <br /> You can manage your preferences at <a href="%1$s" title="%2$s" target="_blank">subscribe.wordpress.com</a>', 'jetpack' ), + 'https://subscribe.wordpress.com/', + __( 'Manage your email preferences.', 'jetpack' ) + ); ?></p> + <?php break; + case 'already' : ?> + <p class="error"><?php printf( __( 'You have already subscribed to this site. Please check your inbox. <br /> You can manage your preferences at <a href="%1$s" title="%2$s" target="_blank">subscribe.wordpress.com</a>', 'jetpack' ), + 'https://subscribe.wordpress.com/', + __( 'Manage your email preferences.', 'jetpack' ) + ); ?></p> + <?php break; + case 'success' : ?> + <div class="success"><?php echo wpautop( str_replace( '[total-subscribers]', number_format_i18n( $subscribers_total['value'] ), $success_message ) ); ?></div> + <?php break; + default : ?> + <p class="error"><?php esc_html_e( 'There was an error when subscribing. Please try again.', 'jetpack' ); ?></p> + <?php break; + endswitch; + } + + if ( self::is_wpcom() && self::wpcom_has_status_message() ) { + global $themecolors; + switch ( $_GET['blogsub'] ) { + case 'confirming': + echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; + _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>.' ); + echo "</div>"; + break; + case 'blocked': + echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; + _e( 'Subscriptions have been blocked for this email address.' ); + echo "</div>"; + break; + case 'flooded': + echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; + _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.' ); + echo "</div>"; + break; + case 'spammed': + echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; + echo wp_kses_post( sprintf( __( 'Because there are many pending subscriptions for this email address, we have blocked the subscription. Please <a href="%s">activate or delete</a> pending subscriptions before attempting to subscribe.' ), 'https://subscribe.wordpress.com/' ) ); + echo "</div>"; + break; + case 'subscribed': + echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; + _e( 'You’re already subscribed to this site.' ); + echo "</div>"; + break; + case 'pending': + echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; + _e( 'You have a pending subscription already; we just sent you another email. Click the link or <a href="http://en.support.wordpress.com/contact/">contact us</a> if you don’t receive it.' ); + echo "</div>"; + break; + case 'confirmed': + echo "<div style='background-color: #{$themecolors['bg']}; border: 1px solid #{$themecolors['border']}; color: #{$themecolors['text']}; padding-left: 5px; padding-right: 5px; margin-bottom: 10px;'>"; + _e( 'Congrats, you’re subscribed! You’ll get an email with the details of your subscription and an unsubscribe link.' ); + echo "</div>"; + break; + } + } + } + + /** + * Renders a message to folks who are already subscribed. + * + * @param array $instance The settings for the particular instance of the widget. + * + * @return void + */ + static function render_widget_already_subscribed( $instance ) { + if ( self::is_wpcom() ) { + $subscribers_total = self::fetch_subscriber_count(); + $edit_subs_url = 'https://wordpress.com/following/edit/'; + if ( function_exists( 'localized_wpcom_url' ) ) { + $edit_subs_url = localized_wpcom_url( http() . '://wordpress.com/following/edit/', get_user_locale() ); + } + $show_subscribers_total = (bool) $instance['show_subscribers_total']; + if ( $show_subscribers_total && $subscribers_total > 1 ) : + $subscribers_not_me = $subscribers_total - 1; + /* translators: %s: number of folks following the blog */ + ?> + <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 + else : + ?> + <p><?php printf( __( 'You are following this blog (<a href="%s">manage</a>).' ), $edit_subs_url ) ?></p><?php + endif; + } + } + + /** + * Renders a form allowing folks to subscribe to the blog. + * + * @param array $args Display arguments including 'before_title', 'after_title', 'before_widget', and 'after_widget'. + * @param array $instance The settings for the particular instance of the widget. + * @param string $subscribe_email The email to use to prefill the form. + */ + static function render_widget_subscription_form( $args, $instance, $subscribe_email ) { + $show_only_email_and_button = $instance['show_only_email_and_button']; + $subscribe_logged_in = isset( $instance['subscribe_logged_in'] ) ? stripslashes( $instance['subscribe_logged_in'] ) : ''; + $show_subscribers_total = (bool) $instance['show_subscribers_total']; + $subscribe_text = empty( $instance['show_only_email_and_button'] ) ? + stripslashes( $instance['subscribe_text'] ) : + false; + $referer = ( is_ssl() ? 'https' : 'http' ) . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; + $source = 'widget'; + $widget_id = esc_attr( ! empty( $args['widget_id'] ) ? esc_attr( $args['widget_id'] ) : mt_rand( 450, 550 ) ); + $subscribe_button = ! empty( $instance['submit_button_text'] ) ? $instance['submit_button_text'] : $instance['subscribe_button']; + $subscribers_total = self::fetch_subscriber_count(); + $subscribe_placeholder = isset( $instance['subscribe_placeholder'] ) ? stripslashes( $instance['subscribe_placeholder'] ) : ''; + $submit_button_classes = isset( $instance['submit_button_classes'] ) ? $instance['submit_button_classes'] : ''; + $submit_button_styles = isset( $instance['submit_button_styles'] ) ? $instance['submit_button_styles'] : ''; + + if ( self::is_wpcom() && ! self::wpcom_has_status_message() ) { + global $current_blog; + $url = defined( 'SUBSCRIBE_BLOG_URL' ) ? SUBSCRIBE_BLOG_URL : ''; + ?> + <form action="<?php echo $url; ?>" method="post" accept-charset="utf-8" + id="subscribe-blog<?php if ( Jetpack_Subscriptions_Widget::$instance_count > 1 ) { + echo '-' . Jetpack_Subscriptions_Widget::$instance_count; + } ?>"> + <?php if ( is_user_logged_in() ) : ?> + <?php + if ( ! $show_only_email_and_button ) { + echo wpautop( $subscribe_logged_in ); + } + if ( $show_subscribers_total && $subscribers_total ) { + /* translators: %s: number of folks following the blog */ + echo wpautop( sprintf( _n( 'Join %s other follower', 'Join %s other followers', $subscribers_total ), number_format_i18n( $subscribers_total ) ) ); + } + ?> + <?php else : ?> + <?php + if ( ! $show_only_email_and_button ) { + echo wpautop( $subscribe_text ); + } + if ( $show_subscribers_total && $subscribers_total ) { + /* translators: %s: number of folks following the blog */ + echo wpautop( sprintf( _n( 'Join %s other follower', 'Join %s other followers', $subscribers_total ), number_format_i18n( $subscribers_total ) ) ); + } + ?> + <p><input type="text" name="email" style="width: 95%; padding: 1px 2px" + placeholder="<?php esc_attr_e( 'Enter your email address' ); ?>" value="" + id="subscribe-field<?php if ( Jetpack_Subscriptions_Widget::$instance_count > 1 ) { + echo '-' . Jetpack_Subscriptions_Widget::$instance_count; + } ?>"/></p> + <?php endif; ?> + + <p> + <input type="hidden" name="action" value="subscribe"/> + <input type="hidden" name="blog_id" value="<?php echo (int) $current_blog->blog_id; ?>"/> + <input type="hidden" name="source" value="<?php echo esc_url( $referer ); ?>"/> + <input type="hidden" name="sub-type" value="<?php echo esc_attr( $source ); ?>"/> + <input type="hidden" name="redirect_fragment" value="<?php echo esc_attr( $widget_id ); ?>"/> + <?php wp_nonce_field( 'blogsub_subscribe_' . $current_blog->blog_id, '_wpnonce', false ); ?> + <button type="submit" + <?php if ( ! empty( $submit_button_classes ) ) { ?> + class="<?php echo esc_attr( $submit_button_classes ); ?>" + <?php }; ?> + <?php if ( ! empty( $submit_button_styles ) ) { ?> + style="<?php echo esc_attr( $submit_button_styles ); ?>" + <?php }; ?> + > + <?php + echo wp_kses( + $subscribe_button, + self::$allowed_html_tags_for_submit_button + ); + ?> + </button> + </p> + </form> + <?php + } + + if ( self::is_jetpack() ) { + /** + * Filter the subscription form's ID prefix. + * + * @module subscriptions + * + * @since 2.7.0 + * + * @param string subscribe-field Subscription form field prefix. + * @param int $widget_id Widget ID. + */ + $subscribe_field_id = apply_filters( 'subscribe_field_id', 'subscribe-field', $widget_id ); + ?> + <form action="#" method="post" accept-charset="utf-8" id="subscribe-blog-<?php echo $widget_id; ?>"> + <?php + if ( $subscribe_text && ( ! isset ( $_GET['subscribe'] ) || 'success' != $_GET['subscribe'] ) ) { + ?> + <div id="subscribe-text"><?php echo wpautop( str_replace( '[total-subscribers]', number_format_i18n( $subscribers_total['value'] ), $subscribe_text ) ); ?></div><?php + } + + if ( $show_subscribers_total && 0 < $subscribers_total['value'] ) { + /* translators: %s: number of folks following the blog */ + echo wpautop( sprintf( _n( 'Join %s other subscriber', 'Join %s other subscribers', $subscribers_total['value'], 'jetpack' ), number_format_i18n( $subscribers_total['value'] ) ) ); + } + if ( ! isset ( $_GET['subscribe'] ) || 'success' != $_GET['subscribe'] ) { ?> + <p id="subscribe-email"> + <label id="jetpack-subscribe-label" + class="screen-reader-text" + for="<?php echo esc_attr( $subscribe_field_id ) . '-' . esc_attr( $widget_id ); ?>"> + <?php echo ! empty( $subscribe_placeholder ) ? esc_html( $subscribe_placeholder ) : esc_html__( 'Email Address:', 'jetpack' ); ?> + </label> + <input type="email" name="email" required="required" class="required" + value="<?php echo esc_attr( $subscribe_email ); ?>" + id="<?php echo esc_attr( $subscribe_field_id ) . '-' . esc_attr( $widget_id ); ?>" + placeholder="<?php echo esc_attr( $subscribe_placeholder ); ?>"/> + </p> + + <p id="subscribe-submit"> + <input type="hidden" name="action" value="subscribe"/> + <input type="hidden" name="source" value="<?php echo esc_url( $referer ); ?>"/> + <input type="hidden" name="sub-type" value="<?php echo esc_attr( $source ); ?>"/> + <input type="hidden" name="redirect_fragment" value="<?php echo $widget_id; ?>"/> + <?php + if ( is_user_logged_in() ) { + wp_nonce_field( 'blogsub_subscribe_' . get_current_blog_id(), '_wpnonce', false ); + } + ?> + <button type="submit" + <?php if ( ! empty( $submit_button_classes ) ) { ?> + class="<?php echo esc_attr( $submit_button_classes ); ?>" + <?php }; ?> + <?php if ( ! empty( $submit_button_styles ) ) { ?> + style="<?php echo esc_attr( $submit_button_styles ); ?>" + <?php }; ?> + name="jetpack_subscriptions_widget" + > + <?php + echo wp_kses( + $subscribe_button, + self::$allowed_html_tags_for_submit_button + ); ?> + </button> + </p> + <?php } ?> + </form> + <?php } + } + + /** + * Determines if the current user is subscribed to the blog. + * + * @return bool Is the person already subscribed. + */ + static function is_current_user_subscribed() { + $subscribed = isset( $_GET['subscribe'] ) && 'success' == $_GET['subscribe']; + + if ( self::is_wpcom() && class_exists( 'Blog_Subscription' ) && class_exists( 'Blog_Subscriber' ) ) { + $subscribed = is_user_logged_in() && Blog_Subscription::is_subscribed( new Blog_Subscriber() ); + } + + return $subscribed; + } + + /** + * Is this script running in the wordpress.com environment? + * + * @return bool + */ + static function is_wpcom() { + return defined( 'IS_WPCOM' ) && IS_WPCOM; + } + + /** + * Is this script running in a self-hosted environment? + * + * @return bool + */ + static function is_jetpack() { + return ! self::is_wpcom(); + } + + /** + * Used to determine if there is a valid status slug within the wordpress.com environment. + * + * @return bool + */ + static function wpcom_has_status_message() { + return isset( $_GET['blogsub'] ) && + in_array( + $_GET['blogsub'], + array( + 'confirming', + 'blocked', + 'flooded', + 'spammed', + 'subscribed', + 'pending', + 'confirmed', + ) + ); + } + + /** + * Determine the amount of folks currently subscribed to the blog. + * + * @return int|array + */ + static function fetch_subscriber_count() { + $subs_count = 0; + + if ( self::is_jetpack() ) { + $subs_count = get_transient( 'wpcom_subscribers_total' ); + if ( false === $subs_count || 'failed' == $subs_count['status'] ) { + Jetpack::load_xml_rpc_client(); + + $xml = new Jetpack_IXR_Client( array( 'user_id' => JETPACK_MASTER_USER, ) ); + + $xml->query( 'jetpack.fetchSubscriberCount' ); + + if ( $xml->isError() ) { // if we get an error from .com, set the status to failed so that we will try again next time the data is requested + $subs_count = array( + 'status' => 'failed', + 'code' => $xml->getErrorCode(), + 'message' => $xml->getErrorMessage(), + 'value' => ( isset( $subs_count['value'] ) ) ? $subs_count['value'] : 0, + ); + } else { + $subs_count = array( + 'status' => 'success', + 'value' => $xml->getResponse(), + ); + } + + set_transient( 'wpcom_subscribers_total', $subs_count, 3600 ); // try to cache the result for at least 1 hour + } + } + + if ( self::is_wpcom() && function_exists( 'wpcom_reach_total_for_blog' ) ) { + $subs_count = wpcom_reach_total_for_blog(); + } + + return $subs_count; + } + + /** + * Updates a particular instance of a widget when someone saves it in wp-admin. + * + * @param array $new_instance + * @param array $old_instance + * + * @return array + */ + function update( $new_instance, $old_instance ) { + $instance = $old_instance; + + if ( self::is_jetpack() ) { + $instance['title'] = wp_kses( stripslashes( $new_instance['title'] ), array() ); + $instance['subscribe_placeholder'] = wp_kses( stripslashes( $new_instance['subscribe_placeholder'] ), array() ); + $instance['subscribe_button'] = wp_kses( stripslashes( $new_instance['subscribe_button'] ), array() ); + $instance['success_message'] = wp_kses( stripslashes( $new_instance['success_message'] ), array() ); + } + + if ( self::is_wpcom() ) { + $instance['title'] = strip_tags( stripslashes( $new_instance['title'] ) ); + $instance['title_following'] = strip_tags( stripslashes( $new_instance['title_following'] ) ); + $instance['subscribe_logged_in'] = wp_filter_post_kses( stripslashes( $new_instance['subscribe_logged_in'] ) ); + $instance['subscribe_button'] = strip_tags( stripslashes( $new_instance['subscribe_button'] ) ); + } + + $instance['show_subscribers_total'] = isset( $new_instance['show_subscribers_total'] ) && $new_instance['show_subscribers_total']; + $instance['show_only_email_and_button'] = isset( $new_instance['show_only_email_and_button'] ) && $new_instance['show_only_email_and_button']; + $instance['subscribe_text'] = wp_filter_post_kses( stripslashes( $new_instance['subscribe_text'] ) ); + + return $instance; + } + + /** + * The default args for rendering a subscription form. + * + * @return array + */ + static function defaults() { + $defaults = array( + 'show_subscribers_total' => true, + 'show_only_email_and_button' => false + ); + + if ( self::is_jetpack() ) { + $defaults['title'] = esc_html__( 'Subscribe to Blog via Email', 'jetpack' ); + $defaults['subscribe_text'] = esc_html__( 'Enter your email address to subscribe to this blog and receive notifications of new posts by email.', 'jetpack' ); + $defaults['subscribe_placeholder'] = esc_html__( 'Email Address', 'jetpack' ); + $defaults['subscribe_button'] = esc_html__( 'Subscribe', 'jetpack' ); + $defaults['success_message'] = esc_html__( "Success! An email was just sent to confirm your subscription. Please find the email now and click 'Confirm Follow' to start subscribing.", 'jetpack' ); + } + + if ( self::is_wpcom() ) { + $defaults['title'] = __( 'Follow Blog via Email' ); + $defaults['title_following'] = __( 'You are following this blog' ); + $defaults['subscribe_text'] = __( 'Enter your email address to follow this blog and receive notifications of new posts by email.' ); + $defaults['subscribe_button'] = __( 'Follow' ); + $defaults['subscribe_logged_in'] = __( 'Click to follow this blog and receive notifications of new posts by email.' ); + } + + return $defaults; + } + + /** + * Renders the widget's options form in wp-admin. + * + * @param array $instance + */ + function form( $instance ) { + $instance = wp_parse_args( (array) $instance, $this->defaults() ); + $show_subscribers_total = checked( $instance['show_subscribers_total'], true, false ); + + + if ( self::is_wpcom() ) { + $title = esc_attr( stripslashes( $instance['title'] ) ); + $title_following = esc_attr( stripslashes( $instance['title_following'] ) ); + $subscribe_text = esc_attr( stripslashes( $instance['subscribe_text'] ) ); + $subscribe_logged_in = esc_attr( stripslashes( $instance['subscribe_logged_in'] ) ); + $subscribe_button = esc_attr( stripslashes( $instance['subscribe_button'] ) ); + $subscribers_total = self::fetch_subscriber_count(); + } + + if ( self::is_jetpack() ) { + $title = stripslashes( $instance['title'] ); + $subscribe_text = stripslashes( $instance['subscribe_text'] ); + $subscribe_placeholder = stripslashes( $instance['subscribe_placeholder'] ); + $subscribe_button = stripslashes( $instance['subscribe_button'] ); + $success_message = stripslashes( $instance['success_message'] ); + $subs_fetch = self::fetch_subscriber_count(); + if ( 'failed' == $subs_fetch['status'] ) { + printf( '<div class="error inline"><p>%s: %s</p></div>', esc_html( $subs_fetch['code'] ), esc_html( $subs_fetch['message'] ) ); + } + $subscribers_total = number_format_i18n( $subs_fetch['value'] ); + } + + if ( self::is_wpcom() ) : ?> + <p> + <label for="<?php echo $this->get_field_id( 'title' ); ?>"> + <?php _e( 'Widget title for non-followers:' ); ?> + <input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" + name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" + value="<?php echo $title; ?>"/> + </label> + </p> + <p> + <label for="<?php echo $this->get_field_id( 'title_following' ); ?>"> + <?php _e( 'Widget title for followers:' ); ?> + <input class="widefat" id="<?php echo $this->get_field_id( 'title_following' ); ?>" + name="<?php echo $this->get_field_name( 'title_following' ); ?>" type="text" + value="<?php echo $title_following; ?>"/> + </label> + </p> + <p> + <label for="<?php echo $this->get_field_id( 'subscribe_logged_in' ); ?>"> + <?php _e( 'Optional text to display to logged in WordPress.com users:' ); ?> + <textarea style="width: 95%" id="<?php echo $this->get_field_id( 'subscribe_logged_in' ); ?>" + name="<?php echo $this->get_field_name( 'subscribe_logged_in' ); ?>" + type="text"><?php echo $subscribe_logged_in; ?></textarea> + </label> + </p> + <p> + <label for="<?php echo $this->get_field_id( 'subscribe_text' ); ?>"> + <?php _e( 'Optional text to display to non-WordPress.com users:' ); ?> + <textarea style="width: 95%" id="<?php echo $this->get_field_id( 'subscribe_text' ); ?>" + name="<?php echo $this->get_field_name( 'subscribe_text' ); ?>" + type="text"><?php echo $subscribe_text; ?></textarea> + </label> + </p> + <p> + <label for="<?php echo $this->get_field_id( 'subscribe_button' ); ?>"> + <?php _e( 'Follow Button Text:' ); ?> + <input class="widefat" id="<?php echo $this->get_field_id( 'subscribe_button' ); ?>" + name="<?php echo $this->get_field_name( 'subscribe_button' ); ?>" type="text" + value="<?php echo $subscribe_button; ?>"/> + </label> + </p> + <p> + <label for="<?php echo $this->get_field_id( 'show_subscribers_total' ); ?>"> + <input type="checkbox" id="<?php echo $this->get_field_id( 'show_subscribers_total' ); ?>" + name="<?php echo $this->get_field_name( 'show_subscribers_total' ); ?>" + value="1"<?php echo $show_subscribers_total; ?> /> + <?php echo esc_html( sprintf( _n( 'Show total number of followers? (%s follower)', 'Show total number of followers? (%s followers)', $subscribers_total ), number_format_i18n( $subscribers_total ) ) ); ?> + </label> + </p> + <?php endif; + + if ( self::is_jetpack() ) : ?> + <p> + <label for="<?php echo $this->get_field_id( 'title' ); ?>"> + <?php _e( 'Widget title:', 'jetpack' ); ?> + <input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" + name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" + value="<?php echo esc_attr( $title ); ?>"/> + </label> + </p> + <p> + <label for="<?php echo $this->get_field_id( 'subscribe_text' ); ?>"> + <?php _e( 'Optional text to display to your readers:', 'jetpack' ); ?> + <textarea class="widefat" id="<?php echo $this->get_field_id( 'subscribe_text' ); ?>" + name="<?php echo $this->get_field_name( 'subscribe_text' ); ?>" + rows="3"><?php echo esc_html( $subscribe_text ); ?></textarea> + </label> + </p> + <p> + <label for="<?php echo $this->get_field_id( 'subscribe_placeholder' ); ?>"> + <?php esc_html_e( 'Subscribe Placeholder:', 'jetpack' ); ?> + <input class="widefat" id="<?php echo $this->get_field_id( 'subscribe_placeholder' ); ?>" + name="<?php echo $this->get_field_name( 'subscribe_placeholder' ); ?>" type="text" + value="<?php echo esc_attr( $subscribe_placeholder ); ?>"/> + </label> + </p> + <p> + <label for="<?php echo $this->get_field_id( 'subscribe_button' ); ?>"> + <?php _e( 'Subscribe Button:', 'jetpack' ); ?> + <input class="widefat" id="<?php echo $this->get_field_id( 'subscribe_button' ); ?>" + name="<?php echo $this->get_field_name( 'subscribe_button' ); ?>" type="text" + value="<?php echo esc_attr( $subscribe_button ); ?>"/> + </label> + </p> + <p> + <label for="<?php echo $this->get_field_id( 'success_message' ); ?>"> + <?php _e( 'Success Message Text:', 'jetpack' ); ?> + <textarea class="widefat" id="<?php echo $this->get_field_id( 'success_message' ); ?>" + name="<?php echo $this->get_field_name( 'success_message' ); ?>" + rows="5"><?php echo esc_html( $success_message ); ?></textarea> + </label> + </p> + <p> + <label for="<?php echo $this->get_field_id( 'show_subscribers_total' ); ?>"> + <input type="checkbox" id="<?php echo $this->get_field_id( 'show_subscribers_total' ); ?>" + name="<?php echo $this->get_field_name( 'show_subscribers_total' ); ?>" + value="1"<?php echo $show_subscribers_total; ?> /> + <?php echo esc_html( sprintf( _n( 'Show total number of subscribers? (%s subscriber)', 'Show total number of subscribers? (%s subscribers)', $subscribers_total, 'jetpack' ), $subscribers_total ) ); ?> + </label> + </p> + <?php endif; + } +} + +if ( defined( 'IS_WPCOM' ) && IS_WPCOM && function_exists( 'class_alias' ) ) { + class_alias( 'Jetpack_Subscriptions_Widget', 'Blog_Subscription_Widget' ); +} + +function get_jetpack_blog_subscriptions_widget_classname() { + return ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ? + 'Blog_Subscription_Widget' : + 'Jetpack_Subscriptions_Widget'; +} + +function jetpack_do_subscription_form( $instance ) { + if ( empty( $instance ) || ! is_array( $instance ) ) { + $instance = array(); + } + + if ( empty( $instance['show_subscribers_total'] ) || 'false' === $instance['show_subscribers_total'] ) { + $instance['show_subscribers_total'] = false; + } else { + $instance['show_subscribers_total'] = true; + } + + $show_only_email_and_button = isset( $instance['show_only_email_and_button'] ) ? $instance['show_only_email_and_button'] : false; + $submit_button_text = isset( $instance['submit_button_text'] ) ? $instance['submit_button_text'] : ''; + + + + // Build up a string with the submit button's classes and styles and set it on the instance + $submit_button_classes = isset( $instance['submit_button_classes'] ) ? $instance['submit_button_classes'] : ''; + $submit_button_styles = ''; + if ( isset( $instance['custom_background_button_color'] ) ) { + $submit_button_styles .= 'background-color: ' . $instance['custom_background_button_color'] . '; '; + } + if ( isset( $instance['custom_text_button_color'] ) ) { + $submit_button_styles .= 'color: ' . $instance['custom_text_button_color'] . ';'; + } + + $instance = shortcode_atts( + Jetpack_Subscriptions_Widget::defaults(), + $instance, + 'jetpack_subscription_form' + ); + + // These must come after the call to shortcode_atts() + $instance['submit_button_text'] = $submit_button_text; + $instance['show_only_email_and_button'] = $show_only_email_and_button; + if ( ! empty( $submit_button_classes ) ) { + $instance['submit_button_classes'] = $submit_button_classes; + } + if ( ! empty ( $submit_button_styles ) ) { + $instance['submit_button_styles'] = $submit_button_styles; + } + + $args = array( + 'before_widget' => '<div class="jetpack_subscription_widget">', + ); + ob_start(); + the_widget( get_jetpack_blog_subscriptions_widget_classname(), $instance, $args ); + $output = ob_get_clean(); + + return $output; +} + +add_shortcode( 'jetpack_subscription_form', 'jetpack_do_subscription_form' ); +add_shortcode( 'blog_subscription_form', 'jetpack_do_subscription_form' ); + +function jetpack_blog_subscriptions_init() { + register_widget( get_jetpack_blog_subscriptions_widget_classname() ); +} + +add_action( 'widgets_init', 'jetpack_blog_subscriptions_init' ); + +function jetpack_register_subscriptions_block() { + if ( class_exists( 'WP_Block_Type_Registry' ) && ! WP_Block_Type_Registry::get_instance()->is_registered( 'jetpack/subscriptions' ) ) { + jetpack_register_block( 'jetpack/subscriptions' ); + } +} + +add_action( 'init', 'jetpack_register_subscriptions_block' ); |