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< ? php
class Jetpack_Subscriptions_Widget extends WP_Widget {
static $instance_count = 0 ;
/**
* @ var array When printing the submit button , what tags are allowed
*/
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public static $allowed_html_tags_for_submit_button = array (
'br' => array (),
's' => array (),
'strong' => array (),
'em' => array (),
);
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/**
* Use this variable when printing the message after submitting an email in subscription widgets
*
* @ var array what tags are allowed
*/
public static $allowed_html_tags_for_message = array (
'a' => array (
'href' => array (),
'title' => array (),
'rel' => array (),
'target' => array (),
),
'br' => array (),
);
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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$s" target="_blank">subscribe.wordpress.com</a>' , 'jetpack' ),
'https://subscribe.wordpress.com/' ,
__ ( 'Manage your email preferences.' , 'jetpack' )
); ?> </p>
< ? php break ;
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case 'many_pending_subs' :
?>
< p class = " error " >
< ? php
printf (
wp_kses (
/* translators: 1: Link to Subscription Management page https://subscribe.wordpress.com/, 2: Description of this link */
__ ( 'You already have several pending email subscriptions. <br /> Approve or delete a few subscriptions at <a href="%1$s" title="%2$s" target="_blank" rel="noopener noreferrer">subscribe.wordpress.com</a> before continuing.' , 'jetpack' ),
self :: $allowed_html_tags_for_message
),
'https://subscribe.wordpress.com/' ,
esc_attr__ ( 'Manage your email preferences.' , 'jetpack' )
);
?>
</ p >
< ? php break ;
case 'pending' :
?>
< p class = " error " >
< ? php
printf (
wp_kses (
/* translators: 1: Link to Subscription Management page https://subscribe.wordpress.com/, 2: Description of this link */
__ ( 'You subscribed this site before but you have not clicked the confirmation link yet. Please check your inbox. <br /> Otherwise, you can manage your preferences at <a href="%1$s" title="%2$s" target="_blank" rel="noopener noreferrer">subscribe.wordpress.com</a>.' , 'jetpack' ),
self :: $allowed_html_tags_for_message
),
'https://subscribe.wordpress.com/' ,
esc_attr__ ( 'Manage your email preferences.' , 'jetpack' )
);
?>
</ p >
< ? php
break ;
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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="https://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="https://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' ] ) ? $instance [ 'submit_button_styles' ] : '' ;
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$email_field_classes = isset ( $instance [ 'email_field_classes' ] ) ? $instance [ 'email_field_classes' ] : '' ;
$email_field_styles = isset ( $instance [ 'email_field_styles' ] ) ? $instance [ 'email_field_styles' ] : '' ;
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if ( self :: is_wpcom () && ! self :: wpcom_has_status_message () ) {
global $current_blog ;
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$url = defined ( 'SUBSCRIBE_BLOG_URL' ) ? SUBSCRIBE_BLOG_URL : '' ;
$form_id = 'subscribe-blog' . self :: $instance_count > 1
? '-' . self :: $instance_count
: '' ;
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?>
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< form
action = " <?php echo esc_url( $url ); ?> "
method = " post "
accept - charset = " utf-8 "
id = " <?php echo esc_attr( $form_id ); ?> "
>
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< ? php if ( is_user_logged_in () ) : ?>
< ? php
if ( ! $show_only_email_and_button ) {
echo wpautop ( $subscribe_logged_in );
}
if ( $show_subscribers_total && $subscribers_total ) {
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?>
< div class = " jetpack-subscribe-count " >
< p >
< ? php
/* translators: %s: number of folks following the blog */
echo esc_html ( sprintf ( _n ( 'Join %s other follower' , 'Join %s other followers' , $subscribers_total , 'jetpack' ), number_format_i18n ( $subscribers_total ) ) );
?>
</ p >
</ div >
< ? php
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}
?>
< ? php else : ?>
< ? php
if ( ! $show_only_email_and_button ) {
echo wpautop ( $subscribe_text );
}
if ( $show_subscribers_total && $subscribers_total ) {
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?>
< div class = " jetpack-subscribe-count " >
< p >
< ? php
/* translators: %s: number of folks following the blog */
echo esc_html ( sprintf ( _n ( 'Join %s other follower' , 'Join %s other followers' , $subscribers_total , 'jetpack' ), number_format_i18n ( $subscribers_total ) ) );
?>
</ p >
</ div >
< ? php
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}
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$email_field_id = 'subscribe-field' . self :: $instance_count > 1
? '-' . self :: $instance_count
: '' ;
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?>
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< p id = " subscribe-email " >
< ? php
printf (
' < input
type = " text "
name = " email "
% 1 $s
style = " %2 $s "
placeholder = " %3 $s "
value = " "
id = " %4 $s "
/> ' ,
( ! empty ( $email_field_classes )
? 'class="' . esc_attr ( $email_field_classes ) . '"'
: ''
),
( ! empty ( $email_field_styles )
? esc_attr ( $email_field_styles )
: 'width: 95%; padding: 1px 10px'
),
esc_attr__ ( 'Enter your email address' ), // phpcs:ignore WordPress.WP.I18n.MissingArgDomain -- This is only used on WordPress.com.
esc_attr ( $email_field_id )
);
?>
</ p >
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< ? php endif ; ?>
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< p id = " subscribe-submit " >
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< 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' ] ) {
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?>
< div class = " jetpack-subscribe-count " >
< p >
< ? php
/* translators: %s: number of folks following the blog */
echo esc_html ( sprintf ( _n ( 'Join %s other subscriber' , 'Join %s other subscribers' , $subscribers_total [ 'value' ], 'jetpack' ), number_format_i18n ( $subscribers_total [ 'value' ] ) ) );
?>
</ p >
</ div >
< ? php
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}
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 >
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< input type = " email " name = " email " required = " required "
< ? php if ( ! empty ( $email_field_classes ) ) { ?>
class = " <?php echo esc_attr( $email_field_classes ); ?> required "
< ? php }; ?>
< ? php if ( ! empty ( $email_field_styles ) ) { ?>
style = " <?php echo esc_attr( $email_field_styles ); ?> "
< ? php }; ?>
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 ); ?> "
/>
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</ 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' == $subs_count [ 'status' ] ) {
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$xml = new Jetpack_IXR_Client ();
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$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' ] ) ? $instance [ 'submit_button_classes' ] : '' ;
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$email_field_classes = isset ( $instance [ 'email_field_classes' ] ) ? $instance [ 'email_field_classes' ] : '' ;
$style = '' ;
$submit_button_styles = '' ;
$email_field_styles = '' ;
if ( isset ( $instance [ 'custom_background_button_color' ] ) && 'undefined' !== $instance [ 'custom_background_button_color' ] ) {
$submit_button_styles .= 'background: ' . $instance [ 'custom_background_button_color' ] . '; ' ;
}
if ( isset ( $instance [ 'custom_text_button_color' ] ) && 'undefined' !== $instance [ 'custom_text_button_color' ] ) {
$submit_button_styles .= 'color: ' . $instance [ 'custom_text_button_color' ] . '; ' ;
}
if ( isset ( $instance [ 'custom_font_size' ] ) && 'undefined' !== $instance [ 'custom_font_size' ] ) {
$style = 'font-size: ' . $instance [ 'custom_font_size' ] . 'px; ' ;
$submit_button_styles .= $style ;
$email_field_styles .= $style ;
}
if ( isset ( $instance [ 'custom_padding' ] ) && 'undefined' !== $instance [ 'custom_padding' ] ) {
$style = 'padding: ' .
$instance [ 'custom_padding' ] . 'px ' .
round ( $instance [ 'custom_padding' ] * 1.5 ) . 'px ' .
$instance [ 'custom_padding' ] . 'px ' .
round ( $instance [ 'custom_padding' ] * 1.5 ) . 'px; ' ;
$submit_button_styles .= $style ;
$email_field_styles .= $style ;
}
$button_spacing = 0 ;
if ( ! empty ( $instance [ 'custom_spacing' ] ) ) {
$button_spacing = $instance [ 'custom_spacing' ];
}
if ( isset ( $instance [ 'button_on_newline' ] ) && 'true' === $instance [ 'button_on_newline' ] ) {
$submit_button_styles .= 'margin-top: ' . $button_spacing . 'px; ' ;
} else {
$submit_button_styles .= 'margin-left: ' . $button_spacing . 'px; ' ;
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}
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if ( isset ( $instance [ 'custom_border_radius' ] ) && 'undefined' !== $instance [ 'custom_border_radius' ] ) {
$style = 'border-radius: ' . $instance [ 'custom_border_radius' ] . 'px; ' ;
$submit_button_styles .= $style ;
$email_field_styles .= $style ;
}
if ( isset ( $instance [ 'custom_border_weight' ] ) && 'undefined' !== $instance [ 'custom_border_weight' ] ) {
$style = 'border-width: ' . $instance [ 'custom_border_weight' ] . 'px; ' ;
$submit_button_styles .= $style ;
$email_field_styles .= $style ;
}
if ( isset ( $instance [ 'custom_border_color' ] ) && 'undefined' !== $instance [ 'custom_border_color' ] ) {
$style =
'border-color: ' . $instance [ 'custom_border_color' ] . '; ' .
'border-style: solid;' ;
$submit_button_styles .= $style ;
$email_field_styles .= $style ;
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}
$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 ;
}
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if ( ! empty ( $email_field_classes ) ) {
$instance [ 'email_field_classes' ] = $email_field_classes ;
}
if ( ! empty ( $submit_button_styles ) ) {
$instance [ 'submit_button_styles' ] = trim ( $submit_button_styles );
}
if ( ! empty ( $email_field_styles ) ) {
$instance [ 'email_field_styles' ] = trim ( $email_field_styles );
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}
$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' );
