<?php
/**
* Facebook Like Box widget.
*
* Based on Jetpack Facebook Like Box widget.
*
* @package OceanWP WordPress theme
*/
// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
if ( ! class_exists( 'Ocean_Extra_Facebook_Widget' ) ) {
class Ocean_Extra_Facebook_Widget extends WP_Widget {
private $default_height = 300;
private $default_width = 300;
private $max_width = 9999;
private $min_width = 0;
private $max_height = 9999;
private $min_height = 100;
private $default_colorscheme = 'light';
private $allowed_colorschemes = array( 'light', 'dark' );
/**
* Register widget with WordPress.
*
* @since 1.0.0
*/
public function __construct() {
parent::__construct(
'ocean_facebook',
esc_html__( '» Facebook Like Box', 'ocean-extra' ),
array(
'classname' => 'widget_facebook_likebox',
'description' => esc_html__( 'Display a Facebook Like Box to connect visitors to your Facebook Page.', 'ocean-extra' ),
'customize_selective_refresh' => true,
)
);
}
/**
* Front-end display of widget.
*
* @see WP_Widget::widget()
* @since 1.0.0
*
* @param array $args Widget arguments.
* @param array $instance Saved values from database.
*/
public function widget( $args, $instance ) {
$name = isset( $args['name'] ) ? $args['name'] : '';
$id = isset( $args['id'] ) ? $args['id'] : '';
$description = isset( $args['description'] ) ? $args['description'] : '';
$class = isset( $args['class'] ) ? $args['class'] : '';
$before_widget = isset( $args['before_widget'] ) ? $args['before_widget'] : '';
$after_widget = isset( $args['after_widget'] ) ? $args['after_widget'] : '';
$before_title = isset( $args['before_title'] ) ? $args['before_title'] : '';
$after_title = isset( $args['after_title'] ) ? $args['after_title'] : '';
$before_sidebar = isset( $args['before_sidebar'] ) ? $args['before_sidebar'] : '';
$after_sidebar = isset( $args['after_sidebar'] ) ? $args['after_sidebar'] : '';
$widget_id = isset( $args['widget_id'] ) ? $args['widget_id'] : '';
$widget_name = isset( $args['widget_name'] ) ? $args['widget_name'] : '';
$link_args_instance = $instance['like_args'] ? $instance['like_args'] : '';
$like_args = $this->normalize_facebook_args( $link_args_instance );
if ( empty( $like_args['href'] ) || ! $this->is_valid_facebook_url( $like_args['href'] ) ) {
if ( current_user_can( 'edit_theme_options' ) ) {
echo $before_widget;
echo '<p>' . sprintf( esc_html__( 'It looks like your Facebook URL is incorrectly configured. Please check it in your <a href="%s">widget settings</a>.', 'ocean-extra' ), esc_url( admin_url( 'widgets.php' ) ) ) . '</p>';
echo $after_widget;
}
echo '<!-- Invalid Facebook Page URL -->';
return;
}
$title = apply_filters( 'widget_title', $instance['title'] );
$page_url = set_url_scheme( $like_args['href'], 'https' );
$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['show_border'] = (bool) $like_args['show_border'] ? 'true' : 'false';
$like_args['header'] = (bool) $like_args['header'] ? 'true' : 'false';
$like_bg_colour = apply_filters( 'ocean_fb_likebox_bg', ( 'dark' == $like_args['colorscheme'] ? '#000' : '#fff' ), $like_args['colorscheme'] );
$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,
'https://www.facebook.com/plugins/likebox.php'
);
// Before widget WP hook
echo $args['before_widget'];
if ( ! empty( $title ) ) :
echo $before_title;
$likebox_widget_title = '<a href="' . esc_url( $page_url ) . '">' . esc_html( $title ) . '</a>';
echo apply_filters( 'ocean_facebook_likebox_title', $likebox_widget_title, $title, $page_url );
echo $after_title;
endif; ?>
<iframe src="<?php echo esc_url( $like_url ); ?>" scrolling="no" frameborder="0" style="border: none; overflow: hidden;<?php echo 0 != $like_args['width'] ? ' width: ' . (int) $like_args['width'] . 'px; ' : ''; ?> height: <?php echo (int) $like_args['height']; ?>px; background: <?php echo esc_attr( $like_bg_colour ); ?>"></iframe>
<?php
// After widget WP hook
echo $args['after_widget'];
do_action( 'ocean_stats_extra', 'widget', 'facebook-likebox' );
}
/**
* Sanitize widget form values as they are saved.
*
* @see WP_Widget::update()
* @since 1.0.0
*
* @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(
'title' => '',
'like_args' => $this->get_default_args(),
);
$instance['title'] = trim( strip_tags( stripslashes( $new_instance['title'] ) ) );
if ( isset( $new_instance['like_args'] ) && ! empty( $new_instance['like_args'] ) ) {
return $new_instance;
}
// 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'] ? $new_instance['colorscheme'] : '',
'show_faces' => isset( $new_instance['show_faces'] ) ? (bool) $new_instance['show_faces'] : false,
'stream' => $new_instance['stream'] ? (bool) $new_instance['stream'] : '',
'show_border' => $new_instance['show_border'] ? (bool) $new_instance['show_border'] : null,
'header' => false, // The header just displays "Find us on Facebook"; it's redundant with the title
'force_wall' => $new_instance['force_wall'] ? (bool) $new_instance['force_wall'] : null,
);
$instance['like_args'] = $this->normalize_facebook_args( $instance['like_args'] );
return $instance;
}
/**
* Back-end widget form.
*
* @see WP_Widget::form()
* @since 1.0.0
*
* @param array $instance Previously saved values from database.
*/
public 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 esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php esc_html_e( 'Title', 'ocean-extra' ); ?></label>
<input type="text" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" value="<?php echo esc_attr( $instance['title'] ); ?>" class="widefat" />
</p>
<p>
<label for="<?php echo esc_attr( $this->get_field_id( 'href' ) ); ?>"><?php esc_html_e( 'Facebook Page URL', 'ocean-extra' ); ?></label>
<input type="text" name="<?php echo esc_attr( $this->get_field_name( 'href' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'href' ) ); ?>" value="<?php echo esc_url( $like_args['href'] ); ?>" class="widefat" />
<br />
<small><?php esc_html_e( 'The Like Box only works with ', 'ocean-extra' ); ?><a href="http://www.facebook.com/help/?faq=174987089221178" target="_blank"><?php esc_html_e( 'Facebook Pages', 'ocean-extra' ); ?></a></small>
</p>
<p>
<label for="<?php echo esc_attr( $this->get_field_id( 'width' ) ); ?>"><?php esc_html_e( 'Width', 'ocean-extra' ); ?></label>
<input type="number" class="smalltext" min="1" max="999" maxlength="3" name="<?php echo esc_attr( $this->get_field_name( 'width' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'width' ) ); ?>" value="<?php echo esc_attr( $like_args['width'] ); ?>" style="text-align: center;" />px
</p>
<p>
<label for="<?php echo esc_attr( $this->get_field_id( 'height' ) ); ?>"><?php esc_html_e( 'Height', 'ocean-extra' ); ?></label>
<input type="number" class="smalltext" min="1" max="999" maxlength="3" name="<?php echo esc_attr( $this->get_field_name( 'height' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'height' ) ); ?>" value="<?php echo esc_attr( $like_args['height'] ); ?>" style="text-align: center;" />px
</p>
<p>
<label for="<?php echo esc_attr( $this->get_field_id( 'colorscheme' ) ); ?>"><?php esc_html_e( 'Color Scheme', 'ocean-extra' ); ?></label>
<select name="<?php echo esc_attr( $this->get_field_name( 'colorscheme' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'colorscheme' ) ); ?>">
<option value="light" <?php selected( $like_args['colorscheme'], 'light' ); ?>><?php esc_html_e( 'Light', 'ocean-extra' ); ?></option>
<option value="dark" <?php selected( $like_args['colorscheme'], 'dark' ); ?>><?php esc_html_e( 'Dark', 'ocean-extra' ); ?></option>
</select>
</p>
<p>
<label for="<?php echo esc_attr( $this->get_field_id( 'show_faces' ) ); ?>">
<input type="checkbox" name="<?php echo esc_attr( $this->get_field_name( 'show_faces' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'show_faces' ) ); ?>" <?php checked( $like_args['show_faces'] ); ?> />
<?php esc_html_e( 'Show Faces', 'ocean-extra' ); ?>
<br />
<small><?php esc_html_e( 'Show profile photos in the plugin.', 'ocean-extra' ); ?></small>
</label>
</p>
<p>
<label for="<?php echo esc_attr( $this->get_field_id( 'stream' ) ); ?>">
<input type="checkbox" name="<?php echo esc_attr( $this->get_field_name( 'stream' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'stream' ) ); ?>" <?php checked( $like_args['stream'] ); ?> />
<?php esc_html_e( 'Show Stream', 'ocean-extra' ); ?>
<br />
<small><?php esc_html_e( 'Show the profile stream for the public profile.', 'ocean-extra' ); ?></small>
</label>
</p>
<p>
<label for="<?php echo esc_attr( $this->get_field_id( 'show_border' ) ); ?>">
<input type="checkbox" name="<?php echo esc_attr( $this->get_field_name( 'show_border' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'show_border' ) ); ?>" <?php checked( $like_args['show_border'] ); ?> />
<?php esc_html_e( 'Show Border', 'ocean-extra' ); ?>
<br />
<small><?php esc_html_e( 'Show a border around the plugin.', 'ocean-extra' ); ?></small>
</label>
</p>
<p>
<label for="<?php echo esc_attr( $this->get_field_id( 'force_wall' ) ); ?>">
<input type="checkbox" name="<?php echo esc_attr( $this->get_field_name( 'force_wall' ) ); ?>" id="<?php echo esc_attr( $this->get_field_id( 'force_wall' ) ); ?>" <?php checked( $like_args['force_wall'] ); ?> />
<?php esc_html_e( 'Show Wall', 'ocean-extra' ); ?>
<br />
<small><?php esc_html_e( 'Show the wall for a Places page rather than friend activity.', 'ocean-extra' ); ?></small>
</label>
</p>
<?php
}
public function get_default_args() {
$defaults = array(
'href' => '',
'width' => $this->default_width,
'height' => $this->default_height,
'colorscheme' => $this->default_colorscheme,
'show_faces' => true,
'stream' => false,
'show_border' => true,
'header' => false,
'force_wall' => false,
);
return apply_filters( 'ocean_facebook_likebox_defaults', $defaults );
}
public 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['height'] = $this->normalize_int_value( (int) $args['height'], $this->default_height, $this->max_height, $this->min_height );
$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['show_border'] = (bool) $args['show_border'];
$args['force_wall'] = (bool) $args['force_wall'];
// The height used to be dependent on other widget settings
// If the user changes those settings but doesn't customize the height,
// let's intelligently assign a new height.
if ( in_array( $args['height'], array( 580, 110, 432 ) ) ) {
if ( $args['show_faces'] && $args['stream'] ) {
$args['height'] = 580;
} elseif ( ! $args['show_faces'] && ! $args['stream'] ) {
$args['height'] = 110;
} else {
$args['height'] = 432;
}
}
return $args;
}
public function is_valid_facebook_url( $url ) {
return ( false !== strpos( $url, 'facebook.com' ) ) ? true : false;
}
public function normalize_int_value( $value, $default = 0, $max = 0, $min = 0 ) {
$value = (int) $value;
if ( $max < $value || $min > $value ) {
$value = $default;
}
return (int) $value;
}
public function normalize_text_value( $value, $default = '', $allowed = array() ) {
$allowed = (array) $allowed;
if ( empty( $value ) || ( ! empty( $allowed ) && ! in_array( $value, $allowed ) ) ) {
$value = $default;
}
return $value;
}
public function guess_locale_from_lang( $lang ) {
if ( 'en' == $lang || 'en_US' == $lang || ! $lang ) {
return 'en_US';
}
if ( ! class_exists( 'GP_Locales' ) ) {
if ( ! defined( 'JETPACK__GLOTPRESS_LOCALES_PATH' ) || ! file_exists( JETPACK__GLOTPRESS_LOCALES_PATH ) ) {
return false;
}
require JETPACK__GLOTPRESS_LOCALES_PATH;
}
if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
// WP.com: get_locale() returns 'it'
$locale = GP_Locales::by_slug( $lang );
} else {
// Jetpack: get_locale() returns 'it_IT';
$locale = GP_Locales::by_field( 'wp_locale', $lang );
}
if ( ! $locale || empty( $locale->facebook_locale ) ) {
return false;
}
return $locale->facebook_locale;
}
public function get_locale() {
return $this->guess_locale_from_lang( get_locale() );
}
}
}
register_widget( 'Ocean_Extra_Facebook_Widget' );
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