woocommerce/includes/abstracts/abstract-wc-widget.php

274 lines
7.2 KiB
PHP

<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Abstract Widget Class
*
* @author WooThemes
* @category Widgets
* @package WooCommerce/Abstracts
* @version 2.5.0
* @extends WP_Widget
*/
abstract class WC_Widget extends WP_Widget {
/**
* CSS class.
*
* @var string
*/
public $widget_cssclass;
/**
* Widget description.
*
* @var string
*/
public $widget_description;
/**
* Widget ID.
*
* @var string
*/
public $widget_id;
/**
* Widget name.
*
* @var string
*/
public $widget_name;
/**
* Settings.
*
* @var array
*/
public $settings;
/**
* Constructor.
*/
public function __construct() {
$widget_ops = array(
'classname' => $this->widget_cssclass,
'description' => $this->widget_description,
'customize_selective_refresh' => true,
);
parent::__construct( $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.
*
* @param array $args
* @return bool true if the widget is cached otherwise false
*/
public 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 array $args
* @param string $content
* @return string the content that was cached
*/
public function cache_widget( $args, $content ) {
wp_cache_set( apply_filters( 'woocommerce_cached_widget_id', $this->widget_id ), array( $args['widget_id'] => $content ), 'widget' );
return $content;
}
/**
* Flush the cache.
*/
public function flush_widget_cache() {
wp_cache_delete( apply_filters( 'woocommerce_cached_widget_id', $this->widget_id ), 'widget' );
}
/**
* Output the html at the start of a widget.
*
* @param array $args
* @param array $instance
*
* @return string
*/
public function widget_start( $args, $instance ) {
echo $args['before_widget'];
if ( $title = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'], $instance, $this->id_base ) ) {
echo $args['before_title'] . $title . $args['after_title'];
}
}
/**
* Output the html at the end of a widget.
*
* @param array $args
* @return string
*/
public function widget_end( $args ) {
echo $args['after_widget'];
}
/**
* Updates a particular instance of a widget.
*
* @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 ( empty( $this->settings ) ) {
return $instance;
}
// Loop settings and get values to save.
foreach ( $this->settings as $key => $setting ) {
if ( ! isset( $setting['type'] ) ) {
continue;
}
// Format the value based on settings type.
switch ( $setting['type'] ) {
case 'number' :
$instance[ $key ] = absint( $new_instance[ $key ] );
if ( isset( $setting['min'] ) && '' !== $setting['min'] ) {
$instance[ $key ] = max( $instance[ $key ], $setting['min'] );
}
if ( isset( $setting['max'] ) && '' !== $setting['max'] ) {
$instance[ $key ] = min( $instance[ $key ], $setting['max'] );
}
break;
case 'textarea' :
$instance[ $key ] = wp_kses( trim( wp_unslash( $new_instance[ $key ] ) ), wp_kses_allowed_html( 'post' ) );
break;
case 'checkbox' :
$instance[ $key ] = empty( $new_instance[ $key ] ) ? 0 : 1;
break;
default:
$instance[ $key ] = sanitize_text_field( $new_instance[ $key ] );
break;
}
/**
* Sanitize the value of a setting.
*/
$instance[ $key ] = apply_filters( 'woocommerce_widget_settings_sanitize_option', $instance[ $key ], $new_instance, $key, $setting );
}
$this->flush_widget_cache();
return $instance;
}
/**
* Outputs the settings update form.
*
* @see WP_Widget->form
*
* @param array $instance
*/
public function form( $instance ) {
if ( empty( $this->settings ) ) {
return;
}
foreach ( $this->settings as $key => $setting ) {
$class = isset( $setting['class'] ) ? $setting['class'] : '';
$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 <?php echo esc_attr( $class ); ?>" 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 <?php echo esc_attr( $class ); ?>" 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 <?php echo esc_attr( $class ); ?>" 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 'textarea' :
?>
<p>
<label for="<?php echo $this->get_field_id( $key ); ?>"><?php echo $setting['label']; ?></label>
<textarea class="widefat <?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo $this->get_field_name( $key ); ?>" cols="20" rows="3"><?php echo esc_textarea( $value ); ?></textarea>
<?php if ( isset( $setting['desc'] ) ) : ?>
<small><?php echo esc_html( $setting['desc'] ); ?></small>
<?php endif; ?>
</p>
<?php
break;
case 'checkbox' :
?>
<p>
<input class="checkbox <?php echo esc_attr( $class ); ?>" 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;
// Default: run an action
default :
do_action( 'woocommerce_widget_field_' . $setting['type'], $key, $value, $setting, $instance );
break;
}
}
}
}