__( 'Shows personalized recommendations to your users.', 'facebook' ) ) // Args
);
}
/**
* Front-end display of widget.
*
* @see WP_Widget::widget()
*
* @since 1.1
*
* @param array $args Widget arguments.
* @param array $instance Saved values from database.
* @return void
*/
public function widget( $args, $instance ) {
extract( $args );
if ( ! class_exists( 'Facebook_Recommendations_Box' ) )
require_once( dirname( dirname(__FILE__) ) . '/class-facebook-recommendations-box.php' );
if ( empty( $instance['ref'] ) )
$instance['ref'] = 'recommendations-box-widget';
$box = Facebook_Recommendations_Box::fromArray( $instance );
if ( ! $box )
return;
$box_html = $box->asHTML( array( 'class' => array( 'fb-social-plugin' ) ) );
if ( ! ( is_string( $box_html ) && $box_html ) )
return;
echo $before_widget;
$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'], $instance, $this->id_base );
if ( $title )
echo $before_title . $title . $after_title;
echo $box_html;
echo $after_widget;
}
/**
* Sanitize widget form values as they are saved.
*
* @see WP_Widget::update()
*
* @since 1.1
*
* @param array $new_instance Values just sent to be saved.
* @param array $old_instance Previously saved values from database.
*
* @return array Updated safe values to be saved.
*/
public function update( $new_instance, $old_instance ) {
$instance = array();
$new_instance = (array) $new_instance;
if ( ! empty( $new_instance['title'] ) )
$instance['title'] = strip_tags( $new_instance['title'] );
if ( isset( $new_instance['header'] ) )
$new_instance['header'] = true;
else
$new_instance['header'] = false;
foreach( array( 'width', 'height', 'max_age' ) as $option ) {
if ( isset( $new_instance[ $option ] ) )
$new_instance[ $option ] = absint( $new_instance[ $option ] );
}
if ( ! class_exists( 'Facebook_Recommendations_Box' ) )
require_once( dirname( dirname( __FILE__ ) ) . '/class-facebook-recommendations-box.php' );
$box = Facebook_Recommendations_Box::fromArray( $new_instance );
if ( $box ) {
$box_options = $box->toHTMLDataArray();
if ( isset( $box_options['header'] ) ) {
if ( $box_options['header'] === 'true' )
$box_options['header'] = true;
else if ( $box_options['header'] === 'false' )
$box_options['header'] = false;
}
if ( isset( $box_options['max-age'] ) ) {
$box_options['max_age'] = absint( $box_options['max-age'] );
unset( $box_options['max-age'] );
}
foreach( array( 'width', 'height' ) as $option ) {
if ( isset( $box_options[ $option ] ) )
$box_options[ $option ] = absint( $box_options[ $option ] );
}
return array_merge( $instance, $box_options );
}
return $instance;
}
/**
* Back-end widget form.
*
* @see WP_Widget::form()
*
* @since 1.1
*
* @param array $instance Previously saved values from database.
* @return void
*/
public function form( $instance ) {
$instance = wp_parse_args( (array) $instance, array(
'title' => '',
'max_age' => 0,
'width' => 0,
'height' => 0,
'font' => '',
'colorscheme' => 'light'
) );
$this->display_title( $instance['title'] );
$this->display_header( isset( $instance['header'] ) && ( $instance['header'] === true || $instance['header'] == '1' || $instance['header'] === 'true' ) );
$this->display_max_age( absint( $instance['max_age'] ) );
$this->display_width( absint( $instance['width'] ) );
$this->display_height( absint( $instance['height'] ) );
$this->display_font( $instance['font'] );
echo '';
$this->display_colorscheme( $instance['colorscheme'] );
}
/**
* Allow a publisher to customize the title displayed above the widget area.
*
* e.g. Things we hope you will like.
*
* @since 1.1
*
* @param string $existing_value saved title
* @return void
*/
public function display_title( $existing_value = '' ) {
echo '';
}
/**
* Show the Facebook header.
*
* Works best when you don't set your own widget title.
*
* @since 1.1
*
* @param bool $true_false
* @return void
*/
public function display_header( $true_false ) {
echo '';
}
/**
* Specify the width of the recommendations box in whole pixels.
*
* @since 1.1
*
* @param int $existing_value previously stored value
* @return void
*/
public function display_width( $existing_value = 300 ) {
if ( $existing_value < 200 )
$existing_value = 300;
echo '';
}
/**
* Specify the height of the recommendations box in whole pixels.
*
* @since 1.1
*
* @param int $existing_value previously stored value
* @return void
*/
public function display_height( $existing_value = 300 ) {
if ( $existing_value < 200 )
$existing_value = 300;
echo '';
}
/**
* Choose a font.
*
* @since 1.1
* @param string $existing_value stored font value
* @return void
*/
public function display_font( $existing_value = '' ) {
if ( ! class_exists( 'Facebook_Social_Plugin_Settings' ) )
require_once( dirname( dirname( dirname( __FILE__ ) ) ) . '/admin/settings-social-plugin.php' );
echo '';
}
/**
* Choose a light or dark color scheme.
*
* @since 1.1
*
* @param string $existing_value saved colorscheme value
* @return void
*/
public function display_colorscheme( $existing_value = 'light' ) {
if ( ! class_exists( 'Facebook_Social_Plugin_Settings' ) )
require_once( dirname( dirname( dirname( __FILE__ ) ) ) . '/admin/settings-social-plugin.php' );
$color_schemes = Facebook_Social_Plugin_Settings::color_scheme_choices( $this->get_field_name( 'colorscheme' ), $existing_value );
if ( $color_schemes )
echo '';
}
/**
* Limit articles displayed in recommendations box to last N days where N is a number between 0 (no limit) and 180.
*
* @since 1.1
*
* @param int $existing_value stored value
* @return void
*/
public function display_max_age( $existing_value = 0 ) {
echo '';
echo '
' . esc_html( __( 'Limit recommendations to articles authored within the last N days.', 'facebook' ) ) . ' ' . esc_html( sprintf( __( 'Reset this value to %s for no date-based limits.', 'facebook' ), '"0"' ) ) . '