__( 'Lets a user follow your public updates on Facebook.', 'facebook' ) ) // Args
);
}
/**
* Front-end display of widget.
*
* @since 1.0
*
* @see WP_Widget::widget()
*
* @param array $args Widget arguments.
* @param array $instance Saved values from database.
* @return void
*/
public function widget( $args, $instance ) {
// no follow target. fail early
if ( empty( $instance['href'] ) )
return;
extract( $args );
if ( ! isset( $instance['ref'] ) )
$instance['ref'] = 'widget';
if ( ! function_exists( 'facebook_get_follow_button' ) )
require_once( dirname( dirname(__FILE__) ) . '/social-plugins.php' );
$follow_button_html = facebook_get_follow_button( $instance );
if ( ! ( is_string( $follow_button_html ) && $follow_button_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 $follow_button_html;
echo $after_widget;
}
/**
* Sanitize widget form values as they are saved.
*
* @since 1.0
*
* @see WP_Widget::update()
*
* @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['show_faces'] ) )
$new_instance['show_faces'] = true;
else
$new_instance['show_faces'] = false;
if ( isset( $new_instance['width'] ) )
$new_instance['width'] = absint( $new_instance['width'] );
if ( ! class_exists( 'Facebook_Follow_Button' ) )
require_once( dirname( dirname(__FILE__) ) . '/class-facebook-follow-button.php' );
$follow_button = Facebook_Follow_Button::fromArray( $new_instance );
if ( $follow_button ) {
if ( ! class_exists( 'Facebook_Follow_Button_Settings' ) )
require_once( dirname( dirname( dirname(__FILE__) ) ) . '/admin/settings-follow-button.php' );
return array_merge( $instance, Facebook_Follow_Button_Settings::html_data_to_options( $follow_button->toHTMLDataArray() ) );
}
return $instance;
}
/**
* Back-end widget form.
*
* @since 1.0
*
* @see WP_Widget::form()
*
* @param array $instance Previously saved values from database.
* @return void
*/
public function form( $instance ) {
$instance = wp_parse_args( (array) $instance, array(
'title' => '',
'href' => '',
'layout' => 'standard',
'show_faces' => false,
'colorscheme' => 'light',
'font' => '',
'width' => 0
) );
$this->display_title( isset( $instance['title'] ) ? $instance['title'] : '' );
$this->display_href( isset( $instance['href'] ) ? $instance['href'] : '' );
if ( ! class_exists( 'Facebook_Follow_Button_Settings' ) )
require_once( dirname( dirname( dirname(__FILE__) ) ) . '/admin/settings-follow-button.php' );
$follow_button_settings = new Facebook_Follow_Button_Settings( $instance );
echo '' . esc_html( __( 'Layout', 'facebook' ) ) . ': ';
$follow_button_settings->display_layout( array(
'id' => $this->get_field_id( 'layout' ),
'name' => $this->get_field_name( 'layout' )
) );
echo '
';
echo '';
$follow_button_settings->display_show_faces( array(
'id' => $this->get_field_id( 'show_faces' ),
'name' => $this->get_field_name( 'show_faces' )
) );
echo '
';
echo '' . esc_html( __( 'Width', 'facebook' ) ) . ' : ';
$follow_button_settings->display_width( array(
'id' => $this->get_field_id( 'width' ),
'name' => $this->get_field_name( 'width' )
) );
echo '
';
echo '' . esc_html( __( 'Font', 'facebook' ) ) . ' : ';
$follow_button_settings->display_font( array(
'id' => $this->get_field_id( 'font' ),
'name' => $this->get_field_name( 'font' )
) );
echo '
';
echo '' . esc_html( __( 'Color scheme', 'facebook' ) ) . ': ';
$follow_button_settings->display_colorscheme( array(
'id' => $this->get_field_id( 'colorscheme' ),
'name' => $this->get_field_name( 'colorscheme' )
) );
echo '
';
}
/**
* Allow a publisher to customize the title displayed above the widget area
*
* e.g. Like us on Facebook!
*
* @since 1.1
*
* @param string $existing_value saved title
* @return void
*/
public function display_title( $existing_value = '' ) {
echo '' . esc_html( __( 'Title', 'facebook' ) ) . ': ';
echo '
';
}
/**
* Customize the Like target
*
* @since 1.1
*
* @param string $existing_value stored URL value
* @return void
*/
public function display_href( $existing_value = '' ) {
echo 'URL:
';
echo '' . esc_html( __( 'Must be a Facebook URL', 'facebook' ) ) . '
';
}
}
?>