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