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<?php
/**
* Tags Products Widget
*
* @package WP-Deals
* @category Widgets
* @author WP-Deals Team
*/
class Deals_Tags_Widget extends WP_Widget {
/**
* Constructor
*
* @return void
**/
function Deals_Tags_Widget() {
$widget_ops = array( 'classname' => 'widget_deals_tags', 'description' => __( 'Use this widget to get all your deal tags', 'wpdeals' ) );
$this->WP_Widget( 'widget_deals_tags', __( 'Deals - Tags', 'wpdeals' ), $widget_ops );
$this->alt_option_name = 'widget_deals_tags';
add_action( 'save_post', array(&$this, 'flush_widget_cache' ) );
add_action( 'deleted_post', array(&$this, 'flush_widget_cache' ) );
add_action( 'switch_theme', array(&$this, 'flush_widget_cache' ) );
}
/**
* Outputs the HTML for this widget.
*
* @param array An array of standard parameters for widgets in this theme
* @param array An array of settings for this widget instance
* @return void Echoes it's output
**/
function widget( $args, $instance ) {
$cache = wp_cache_get( 'widget_deals_tags', 'widget' );
if ( !is_array( $cache ) )
$cache = array();
if ( ! isset( $args['widget_id'] ) )
$args['widget_id'] = null;
if ( isset( $cache[$args['widget_id']] ) ) {
echo $cache[$args['widget_id']];
return;
}
ob_start();
extract( $args, EXTR_SKIP );
$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? __( 'Tags Deals', 'wpdeals' ) : $instance['title'], $instance, $this->id_base);
if ( ! isset( $instance['number'] ) )
$instance['number'] = '3';
if ( ! $number = absint( $instance['number'] ) )
$number = 3;
$terms = wp_tag_cloud(array(
'number' => $number,
'format' => 'flat',
'echo' => 0,
'taxonomy' => 'deal-tags'
));
if ( !empty($terms) ) ://has terms
echo $before_widget;
echo $before_title;
echo $title; // Can set this with a widget option, or omit altogether
echo $after_title;
?>
<ul>
<?php echo $terms; ?>
</ul>
<?php
echo $after_widget;
else://no terms
echo 'No tags';
endif;
$cache[$args['widget_id']] = ob_get_flush();
wp_cache_set( 'widget_deals_tags', $cache, 'widget' );
}
/**
* Deals with the settings when they are saved by the admin. Here is
* where any validation should be dealt with.
**/
function update( $new_instance, $old_instance ) {
$instance = $old_instance;
$instance['title'] = strip_tags( $new_instance['title'] );
$instance['number'] = (int) $new_instance['number'];
$this->flush_widget_cache();
$alloptions = wp_cache_get( 'alloptions', 'options' );
if ( isset( $alloptions['widget_deals_tags'] ) )
delete_option( 'widget_deals_tags' );
return $instance;
}
function flush_widget_cache() {
wp_cache_delete( 'widget_deals_tags', 'widget' );
}
/**
* Displays the form for this widget on the Widgets page of the WP Admin area.
**/
function form( $instance ) {
$title = isset( $instance['title']) ? esc_attr( $instance['title'] ) : '';
$number = isset( $instance['number'] ) ? absint( $instance['number'] ) : 10;
?>
<p><label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php _e( 'Title:', 'wpdeals' ); ?></label>
<input class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" /></p>
<p><label for="<?php echo esc_attr( $this->get_field_id( 'number' ) ); ?>"><?php _e( 'Number of tags to show:', 'wpdeals' ); ?></label>
<input id="<?php echo esc_attr( $this->get_field_id( 'number' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'number' ) ); ?>" type="text" value="<?php echo esc_attr( $number ); ?>" size="3" /></p>
<?php
}
}
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