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<?php
/**
* Abstract Widget Class
*
* @author WooThemes
* @category Widgets
* @package WooCommerce/Abstracts
* @version 2.1.0
* @extends WP_Widget
*/
abstract class WC_Widget extends WP_Widget {
public $widget_cssclass;
public $widget_description;
public $widget_id;
public $widget_name;
public $settings;
/**
* Constructor
*/
public function __construct() {
$widget_ops = array(
'classname' => $this->widget_cssclass,
'description' => $this->widget_description
);
$this->WP_Widget( $this->widget_id, $this->widget_name, $widget_ops );
add_action( 'save_post', array( $this, 'flush_widget_cache' ) );
add_action( 'deleted_post', array( $this, 'flush_widget_cache' ) );
add_action( 'switch_theme', array( $this, 'flush_widget_cache' ) );
}
/**
* get_cached_widget function.
*/
function get_cached_widget( $args ) {
$cache = wp_cache_get( apply_filters( 'woocommerce_cached_widget_id', $this->widget_id ), 'widget' );
if ( ! is_array( $cache ) ) {
$cache = array();
}
if ( isset( $cache[ $args['widget_id'] ] ) ) {
echo $cache[ $args['widget_id'] ];
return true;
}
return false;
}
/**
* Cache the widget
* @param string $content
*/
public function cache_widget( $args, $content ) {
$cache[ $args['widget_id'] ] = $content;
wp_cache_set( apply_filters( 'woocommerce_cached_widget_id', $this->widget_id ), $cache, 'widget' );
}
/**
* Flush the cache
*
* @return void
*/
public function flush_widget_cache() {
wp_cache_delete( apply_filters( 'woocommerce_cached_widget_id', $this->widget_id ), 'widget' );
}
/**
* update function.
*
* @see WP_Widget->update
* @param array $new_instance
* @param array $old_instance
* @return array
*/
public function update( $new_instance, $old_instance ) {
$instance = $old_instance;
if ( ! $this->settings ) {
return $instance;
}
foreach ( $this->settings as $key => $setting ) {
if ( isset( $new_instance[ $key ] ) ) {
$instance[ $key ] = sanitize_text_field( $new_instance[ $key ] );
} elseif ( 'checkbox' === $setting['type'] ) {
$instance[ $key ] = 0;
}
}
$this->flush_widget_cache();
return $instance;
}
/**
* form function.
*
* @see WP_Widget->form
* @param array $instance
*/
public function form( $instance ) {
if ( ! $this->settings ) {
return;
}
foreach ( $this->settings as $key => $setting ) {
$value = isset( $instance[ $key ] ) ? $instance[ $key ] : $setting['std'];
switch ( $setting['type'] ) {
case "text" :
?>
<p>
<label for="<?php echo $this->get_field_id( $key ); ?>"><?php echo $setting['label']; ?></label>
<input class="widefat" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo $this->get_field_name( $key ); ?>" type="text" value="<?php echo esc_attr( $value ); ?>" />
</p>
<?php
break;
case "number" :
?>
<p>
<label for="<?php echo $this->get_field_id( $key ); ?>"><?php echo $setting['label']; ?></label>
<input class="widefat" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo $this->get_field_name( $key ); ?>" type="number" step="<?php echo esc_attr( $setting['step'] ); ?>" min="<?php echo esc_attr( $setting['min'] ); ?>" max="<?php echo esc_attr( $setting['max'] ); ?>" value="<?php echo esc_attr( $value ); ?>" />
</p>
<?php
break;
case "select" :
?>
<p>
<label for="<?php echo $this->get_field_id( $key ); ?>"><?php echo $setting['label']; ?></label>
<select class="widefat" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo $this->get_field_name( $key ); ?>">
<?php foreach ( $setting['options'] as $option_key => $option_value ) : ?>
<option value="<?php echo esc_attr( $option_key ); ?>" <?php selected( $option_key, $value ); ?>><?php echo esc_html( $option_value ); ?></option>
<?php endforeach; ?>
</select>
</p>
<?php
break;
case "checkbox" :
?>
<p>
<input id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( $key ) ); ?>" type="checkbox" value="1" <?php checked( $value, 1 ); ?> />
<label for="<?php echo $this->get_field_id( $key ); ?>"><?php echo $setting['label']; ?></label>
</p>
<?php
break;
}
}
}
}
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