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|
<?php
/**
* Facebook Like Box widget class
* Display a Facebook Like Box as a widget
* http://developers.facebook.com/docs/reference/plugins/like-box/
*/
class WPCOM_Widget_Facebook_LikeBox extends WP_Widget {
private $default_height = 432;
private $default_width = 200;
private $max_width = 400;
private $min_width = 100;
private $default_colorscheme = 'light';
private $allowed_colorschemes = array( 'light', 'dark' );
function __construct() {
parent::__construct( 'facebook-likebox', __( 'Facebook Like Box', 'jetpack' ), array( 'classname' => 'widget_facebook_likebox', 'description' => __( 'Display a Facebook Like Box to connect visitors to your Facebook Page', 'jetpack' ) ) );
}
function widget( $args, $instance ) {
extract( $args );
$like_args = $this->normalize_facebook_args( $instance['like_args'] );
if( empty( $like_args['href'] ) || ! $this->is_valid_facebook_url( $like_args['href'] ) ) {
echo '<!-- Invalid Facebook Page URL -->';
return;
}
$title = apply_filters( 'widget_title', $instance['title'] );
$page_url = ( is_ssl() ) ? str_replace( 'http://', 'https://', $like_args['href'] ) : $like_args['href'];
// Calculate the height based on the features enabled
if( $like_args['show_faces'] && $like_args['stream'] ) {
$like_args['height'] = 580;
} else if( ! $like_args['show_faces'] && ! $like_args['stream'] ) {
$like_args['height'] = 110;
} else {
$like_args['height'] = 432;
}
$like_args['show_faces'] = (bool) $like_args['show_faces'] ? 'true' : 'false';
$like_args['stream'] = (bool) $like_args['stream'] ? 'true' : 'false';
$like_args['force_wall'] = (bool) $like_args['force_wall'] ? 'true' : 'false';
$like_args['header'] = (bool) $like_args['header'] ? 'true' : 'false';
$like_bg_colour = ( 'dark' == $like_args['colorscheme'] ) ? '#000' : '#fff';
$locale = $this->get_locale();
if( $locale && 'en_US' != $locale )
$like_args['locale'] = $locale;
$like_args = urlencode_deep( $like_args );
$like_url = add_query_arg( $like_args, sprintf( '%swww.facebook.com/plugins/likebox.php', ( is_ssl() ) ? 'https://' : 'http://' ) );
echo $before_widget;
if( ! empty( $title ) ) :
echo $before_title;
?><a href="<?php echo esc_url( $page_url ); ?>"><?php esc_html_e( $title , 'jetpack' ); ?></a><?php
echo $after_title;
endif;
?><iframe src="<?php echo esc_url( $like_url ); ?>" scrolling="no" frameborder="0" style="border: none; overflow: hidden; width: <?php esc_html_e( $like_args['width'] , 'jetpack' ); ?>px; height: <?php esc_html_e( $like_args['height'] , 'jetpack' ); ?>px; background: <?php esc_html_e( $like_bg_colour , 'jetpack' ); ?>"></iframe><?php
echo $after_widget;
do_action( 'jetpack_stats_extra', 'widget', 'facebook-likebox' );
}
function update( $new_instance, $old_instance ) {
$instance = array(
'title' => '',
'like_args' => $this->get_default_args(),
);
$instance['title'] = trim( strip_tags( stripslashes( $new_instance['title'] ) ) );
// Set up widget values
$instance['like_args'] = array(
'href' => trim( strip_tags( stripslashes( $new_instance['href'] ) ) ),
'width' => (int) $new_instance['width'],
'height' => (int) $new_instance['height'],
'colorscheme' => $new_instance['colorscheme'],
'show_faces' => (bool) $new_instance['show_faces'],
'stream' => (bool) $new_instance['stream'],
'header' => false, // The header just displays "Find us on Facebook"; it's redundant with the title
'force_wall' => (bool) $new_instance['force_wall'],
);
$instance['like_args'] = $this->normalize_facebook_args( $instance['like_args'] );
return $instance;
}
function form( $instance ) {
$instance = wp_parse_args( (array) $instance, array(
'title' => '',
'like_args' => $this->get_default_args()
) );
$like_args = $this->normalize_facebook_args( $instance['like_args'] );
?>
<p>
<label for="<?php echo $this->get_field_id( 'title' ); ?>">
<?php _e( 'Title', 'jetpack' ); ?>
<input type="text" name="<?php echo $this->get_field_name( 'title' ); ?>" id="<?php echo $this->get_field_id( 'title' ); ?>" value="<?php echo esc_attr( $instance['title'] ); ?>" class="widefat" />
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id( 'href' ); ?>">
<?php _e( 'Facebook Page URL', 'jetpack' ); ?>
<input type="text" name="<?php echo $this->get_field_name( 'href' ); ?>" id="<?php echo $this->get_field_id( 'href' ); ?>" value="<?php echo esc_url( $like_args['href'] ); ?>" class="widefat" />
<br />
<small><?php _e( 'The Like Box only works with <a href="http://www.facebook.com/help/?faq=174987089221178">Facebook Pages</a>.', 'jetpack' ); ?></small>
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id( 'width' ); ?>">
<?php _e( 'Width', 'jetpack' ); ?>
<input type="text" maxlength="3" name="<?php echo $this->get_field_name( 'width' ); ?>" id="<?php echo $this->get_field_id( 'width' ); ?>" value="<?php echo esc_attr( $like_args['width'] ); ?>" style="width: 30px; text-align: center;" />
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id( 'colorscheme' ); ?>">
<?php _e( 'Color Scheme', 'jetpack' ); ?>
<select name="<?php echo $this->get_field_name( 'colorscheme' ); ?>" id="<?php echo $this->get_field_id( 'colorscheme' ); ?>">
<option value="light" <?php selected( $like_args['colorscheme'], 'light' ); ?>><?php _e( 'Light', 'jetpack' ); ?></option>
<option value="dark" <?php selected( $like_args['colorscheme'], 'dark' ); ?>><?php _e( 'Dark', 'jetpack' ); ?></option>
</select>
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id( 'show_faces' ); ?>">
<input type="checkbox" name="<?php echo $this->get_field_name( 'show_faces' ); ?>" id="<?php echo $this->get_field_id( 'show_faces' ); ?>" <?php checked( $like_args['show_faces'] ); ?> />
<?php _e( 'Show Faces', 'jetpack' ); ?>
<br />
<small><?php _e( 'Show profile photos in the plugin.', 'jetpack' ); ?></small>
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id( 'stream' ); ?>">
<input type="checkbox" name="<?php echo $this->get_field_name( 'stream' ); ?>" id="<?php echo $this->get_field_id( 'stream' ); ?>" <?php checked( $like_args['stream'] ); ?> />
<?php _e( 'Show Stream', 'jetpack' ); ?>
<br />
<small><?php _e( 'Show the profile stream for the public profile.', 'jetpack' ); ?></small>
</label>
</p>
<p>
<label for="<?php echo $this->get_field_id( 'force_wall' ); ?>">
<input type="checkbox" name="<?php echo $this->get_field_name( 'force_wall' ); ?>" id="<?php echo $this->get_field_id( 'force_wall' ); ?>" <?php checked( $like_args['force_wall'] ); ?> />
<?php _e( 'Show Wall', 'jetpack' ); ?>
<br />
<small><?php _e( 'Show the wall for a Places page rather than friend activity.', 'jetpack' ); ?></small>
</label>
</p>
<?php
}
function get_default_args() {
$defaults = array(
'href' => '',
'width' => $this->default_width,
'height' => $this->default_height,
'colorscheme' => $this->default_colorscheme,
'show_faces' => true,
'stream' => false,
'header' => false,
'force_wall' => false,
);
return apply_filters( 'jetpack_facebook_likebox_defaults', $defaults );
}
function normalize_facebook_args( $args ) {
$args = wp_parse_args( (array) $args, $this->get_default_args() );
// Validate the Facebook Page URL
if ( $this->is_valid_facebook_url( $args['href'] ) ) {
$temp = explode( '?', $args['href'] );
$args['href'] = str_replace( array( 'http://facebook.com', 'https://facebook.com' ), array( 'http://www.facebook.com', 'https://www.facebook.com' ), $temp[0] );
} else {
$args['href'] = '';
}
$args['width'] = $this->normalize_int_value( (int) $args['width'], $this->default_width, $this->max_width, $this->min_width );
$args['colorscheme'] = $this->normalize_text_value( $args['colorscheme'], $this->default_colorscheme, $this->allowed_colorschemes );
$args['show_faces'] = (bool) $args['show_faces'];
$args['stream'] = (bool) $args['stream'];
$args['force_wall'] = (bool) $args['force_wall'];
return $args;
}
function is_valid_facebook_url( $url ) {
return ( FALSE !== strpos( $url, 'facebook.com' ) ) ? TRUE : FALSE;
}
function normalize_int_value( $value, $default = 0, $max = 0, $min = 0 ) {
$value = (int) $value;
if( ! $value || $max < $value || $min > $value )
$value = $default;
return (int) $value;
}
function normalize_text_value( $value, $default = '', $allowed = array() ) {
$allowed = (array) $allowed;
if( empty( $value ) || ( ! empty( $allowed ) && ! in_array( $value, $allowed ) ) )
$value = $default;
return $value;
}
function guess_locale_from_lang( $lang ) {
$lang = strtolower( str_replace( '-', '_', $lang ) );
if ( 5 == strlen( $lang ) ) {
$lang = substr( $lang, 0, 3 ) . strtoupper( substr( $lang, 3, 2 ) );
} else if ( 3 == strlen( $lang ) ) {
$lang = $lang;
} else {
$lang = $lang . '_' . strtoupper( $lang );
}
if ( 'en_EN' == $lang ) {
$lang = 'en_US';
} else if ( 'he_HE' == $lang ) {
$lang = 'he_IL';
} else if ( 'ja_JA' == $lang )
$lang = 'ja_JP';
return $lang;
}
function get_locale() {
return $this->guess_locale_from_lang( get_locale() );
}
}
// END
|
GitWeb