/
widget-layered_nav.php
389 lines (281 loc) · 13.6 KB
/
widget-layered_nav.php
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<?php
/**
* Layered Navigation Widget and related functions
*
* @package WooCommerce
* @category Widgets
* @author WooThemes
*/
if (is_active_widget( false, false, 'layered_nav', 'true' ) && !is_admin()) :
add_action('init', 'woocommerce_layered_nav_init', 1);
add_filter('loop_shop_post_in', 'woocommerce_layered_nav_query');
endif;
/**
* Layered Nav Init
*/
function woocommerce_layered_nav_init() {
global $_chosen_attributes, $woocommerce;
$_chosen_attributes = array();
$attribute_taxonomies = $woocommerce->attribute_taxonomies;
if ( $attribute_taxonomies ) :
foreach ($attribute_taxonomies as $tax) :
$attribute = strtolower(sanitize_title($tax->attribute_name));
$taxonomy = $woocommerce->attribute_taxonomy_name($attribute);
$name = 'filter_' . $attribute;
$query_type_name = 'query_type_' . $attribute;
if (isset($_GET[$name]) && taxonomy_exists($taxonomy)) :
$_chosen_attributes[$taxonomy]['terms'] = explode(',', $_GET[$name] );
if (isset($_GET[$query_type_name]) && $_GET[$query_type_name]=='or') :
$_chosen_attributes[$taxonomy]['query_type'] = 'or';
else :
$_chosen_attributes[$taxonomy]['query_type'] = 'and';
endif;
endif;
endforeach;
endif;
}
/**
* Layered Nav post filter
*/
function woocommerce_layered_nav_query( $filtered_posts ) {
global $_chosen_attributes, $woocommerce;
if (sizeof($_chosen_attributes)>0) :
$matched_products = array();
$filtered_attribute = false;
foreach ($_chosen_attributes as $attribute => $data) :
$matched_products_from_attribute = array();
$filtered = false;
if (sizeof($data['terms'])>0) :
foreach ($data['terms'] as $value) :
$posts = get_objects_in_term( $value, $attribute );
// AND or OR
if ($data['query_type']=='or') :
if (!is_wp_error($posts) && (sizeof($matched_products_from_attribute)>0 || $filtered)) :
$matched_products_from_attribute = array_merge($posts, $matched_products_from_attribute);
elseif (!is_wp_error($posts)) :
$matched_products_from_attribute = $posts;
endif;
else :
if (!is_wp_error($posts) && (sizeof($matched_products_from_attribute)>0 || $filtered)) :
$matched_products_from_attribute = array_intersect($posts, $matched_products_from_attribute);
elseif (!is_wp_error($posts)) :
$matched_products_from_attribute = $posts;
endif;
endif;
$filtered = true;
endforeach;
endif;
if (sizeof($matched_products)>0 || $filtered_attribute) :
$matched_products = array_intersect($matched_products_from_attribute, $matched_products);
else :
$matched_products = $matched_products_from_attribute;
endif;
$filtered_attribute = true;
endforeach;
if ($filtered) :
$woocommerce->query->layered_nav_post__in = $matched_products;
$woocommerce->query->layered_nav_post__in[] = 0;
if (sizeof($filtered_posts)==0) :
$filtered_posts = $matched_products;
$filtered_posts[] = 0;
else :
$filtered_posts = array_intersect($filtered_posts, $matched_products);
$filtered_posts[] = 0;
endif;
endif;
endif;
return (array) $filtered_posts;
}
/**
* Layered Nav Widget
*/
class WooCommerce_Widget_Layered_Nav extends WP_Widget {
/** Variables to setup the widget. */
var $woo_widget_cssclass;
var $woo_widget_description;
var $woo_widget_idbase;
var $woo_widget_name;
/** constructor */
function WooCommerce_Widget_Layered_Nav() {
/* Widget variable settings. */
$this->woo_widget_cssclass = 'widget_layered_nav';
$this->woo_widget_description = __( 'Shows a custom attribute in a widget which lets you narrow down the list of products when viewing product categories.', 'woocommerce' );
$this->woo_widget_idbase = 'woocommerce_layered_nav';
$this->woo_widget_name = __('WooCommerce Layered Nav', 'woocommerce' );
/* Widget settings. */
$widget_ops = array( 'classname' => $this->woo_widget_cssclass, 'description' => $this->woo_widget_description );
/* Create the widget. */
$this->WP_Widget('layered_nav', $this->woo_widget_name, $widget_ops);
}
/** @see WP_Widget */
function widget( $args, $instance ) {
extract($args);
if (!is_tax( 'product_cat' ) && !is_post_type_archive('product') && !is_tax( 'product_tag' )) return;
global $_chosen_attributes, $woocommerce, $wp_query;
$title = apply_filters('widget_title', $instance['title'], $instance, $this->id_base);
$taxonomy = $woocommerce->attribute_taxonomy_name($instance['attribute']);
$query_type = (isset($instance['query_type'])) ? $instance['query_type'] : 'and';
$display_type = (isset($instance['display_type'])) ? $instance['display_type'] : 'list';
if (!taxonomy_exists($taxonomy)) return;
$args = array(
'hide_empty' => '1'
);
$terms = get_terms( $taxonomy, $args );
$count = count($terms);
if($count > 0){
$found = false;
ob_start();
echo $before_widget . $before_title . $title . $after_title;
if ($display_type=='dropdown') {
$taxonomy_filter = str_replace('pa_', '', $taxonomy);
$found = true;
echo '<select id="dropdown_layered_nav_'.$taxonomy_filter.'">';
echo '<option value="">'. sprintf( __('Any %s', 'woocommerce'), $woocommerce->attribute_label( $taxonomy ) ) .'</option>';
foreach ($terms as $term) {
echo '<option value="'.$term->term_id.'" '.selected( (isset($_GET['filter_'.$taxonomy_filter])) ? $_GET['filter_'.$taxonomy_filter] : '' , $term->term_id, false).'>'.$term->name.'</option>';
}
echo '</select>';
$woocommerce->add_inline_js("
jQuery('#dropdown_layered_nav_$taxonomy_filter').change(function(){
location.href = '".home_url(remove_query_arg('filter_' . $taxonomy_filter, add_query_arg('filtering', '1')))."&filter_$taxonomy_filter=' + jQuery('#dropdown_layered_nav_$taxonomy_filter').val();
});
");
} else {
// List display
echo "<ul>";
// Force found when option is selected
if (is_array($_chosen_attributes) && array_key_exists($taxonomy, $_chosen_attributes)) $found = true;
foreach ($terms as $term) {
// Get count based on current view - uses transients
$transient_name = 'woocommerce_layered_nav_count_' . sanitize_key($taxonomy) . sanitize_key( $term->term_id );
if ( false === ( $_products_in_term = get_transient( $transient_name ) ) ) {
$_products_in_term = get_objects_in_term( $term->term_id, $taxonomy );
set_transient( $transient_name, $_products_in_term );
}
$option_is_set = (isset($_chosen_attributes[$taxonomy]) && in_array($term->term_id, $_chosen_attributes[$taxonomy]['terms']));
// If this is an AND query, only show options with count > 0
if ($query_type=='and') {
$count = sizeof(array_intersect($_products_in_term, $woocommerce->query->filtered_product_ids));
if ($count>0) $found = true;
if ($count==0 && !$option_is_set) continue;
// If this is an OR query, show all options so search can be expanded
} else {
$count = sizeof(array_intersect($_products_in_term, $woocommerce->query->unfiltered_product_ids));
if ($count>0) $found = true;
}
$class = '';
$arg = 'filter_'.strtolower(sanitize_title($instance['attribute']));
if (isset($_GET[ $arg ])) $current_filter = explode(',', $_GET[ $arg ]); else $current_filter = array();
if (!is_array($current_filter)) $current_filter = array();
if (!in_array($term->term_id, $current_filter)) $current_filter[] = $term->term_id;
// Base Link decided by current page
if (defined('SHOP_IS_ON_FRONT')) :
$link = home_url();
elseif (is_post_type_archive('product') || is_page( woocommerce_get_page_id('shop') )) :
$link = get_post_type_archive_link('product');
else :
$link = get_term_link( get_query_var('term'), get_query_var('taxonomy') );
endif;
// All current filters
if ($_chosen_attributes) foreach ($_chosen_attributes as $name => $data) :
if ($name!==$taxonomy) :
$link = add_query_arg( strtolower(sanitize_title(str_replace('pa_', 'filter_', $name))), implode(',', $data['terms']), $link );
if ($data['query_type']=='or') $link = add_query_arg( strtolower(sanitize_title(str_replace('pa_', 'query_type_', $name))), 'or', $link );
endif;
endforeach;
// Min/Max
if (isset($_GET['min_price'])) :
$link = add_query_arg( 'min_price', $_GET['min_price'], $link );
endif;
if (isset($_GET['max_price'])) :
$link = add_query_arg( 'max_price', $_GET['max_price'], $link );
endif;
// Current Filter = this widget
if (isset( $_chosen_attributes[$taxonomy] ) && is_array($_chosen_attributes[$taxonomy]['terms']) && in_array($term->term_id, $_chosen_attributes[$taxonomy]['terms'])) :
$class = 'class="chosen"';
// Remove this term is $current_filter has more than 1 term filtered
if (sizeof($current_filter)>1) :
$current_filter_without_this = array_diff($current_filter, array($term->term_id));
$link = add_query_arg( $arg, implode(',', $current_filter_without_this), $link );
endif;
else :
$link = add_query_arg( $arg, implode(',', $current_filter), $link );
endif;
// Search Arg
if (get_search_query()) :
$link = add_query_arg( 's', get_search_query(), $link );
endif;
// Post Type Arg
if (isset($_GET['post_type'])) :
$link = add_query_arg( 'post_type', $_GET['post_type'], $link );
endif;
// Query type Arg
if ($query_type=='or' && !( sizeof($current_filter) == 1 && isset( $_chosen_attributes[$taxonomy]['terms'] ) && is_array($_chosen_attributes[$taxonomy]['terms']) && in_array($term->term_id, $_chosen_attributes[$taxonomy]['terms']) )) :
$link = add_query_arg( 'query_type_'.strtolower(sanitize_title($instance['attribute'])), 'or', $link );
endif;
echo '<li '.$class.'>';
if ($count>0 || $option_is_set) echo '<a href="'.$link.'">'; else echo '<span>';
echo $term->name;
if ($count>0 || $option_is_set) echo '</a>'; else echo '</span>';
echo ' <small class="count">'.$count.'</small></li>';
}
echo "</ul>";
} // End display type conditional
echo $after_widget;
if (!$found) :
ob_clean();
return;
else :
$widget = ob_get_clean();
echo $widget;
endif;
}
}
/** @see WP_Widget->update */
function update( $new_instance, $old_instance ) {
global $woocommerce;
if (!isset($new_instance['title']) || empty($new_instance['title'])) $new_instance['title'] = $woocommerce->attribute_label($new_instance['attribute']);
$instance['title'] = strip_tags(stripslashes($new_instance['title']));
$instance['attribute'] = stripslashes($new_instance['attribute']);
$instance['query_type'] = stripslashes($new_instance['query_type']);
$instance['display_type'] = stripslashes($new_instance['display_type']);
return $instance;
}
/** @see WP_Widget->form */
function form( $instance ) {
global $woocommerce;
if (!isset($instance['query_type'])) $instance['query_type'] = 'and';
if (!isset($instance['display_type'])) $instance['display_type'] = 'list';
?>
<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:', 'woocommerce') ?></label>
<input type="text" class="widefat" id="<?php echo esc_attr( $this->get_field_id('title') ); ?>" name="<?php echo esc_attr( $this->get_field_name('title') ); ?>" value="<?php if (isset ( $instance['title'])) {echo esc_attr( $instance['title'] );} ?>" /></p>
<p><label for="<?php echo $this->get_field_id('attribute'); ?>"><?php _e('Attribute:', 'woocommerce') ?></label>
<select id="<?php echo esc_attr( $this->get_field_id('attribute') ); ?>" name="<?php echo esc_attr( $this->get_field_name('attribute') ); ?>">
<?php
$attribute_taxonomies = $woocommerce->get_attribute_taxonomies();
if ( $attribute_taxonomies ) :
foreach ($attribute_taxonomies as $tax) :
if (taxonomy_exists( $woocommerce->attribute_taxonomy_name($tax->attribute_name))) :
echo '<option value="'.$tax->attribute_name.'" ';
if (isset($instance['attribute']) && $instance['attribute']==$tax->attribute_name) :
echo 'selected="selected"';
endif;
echo '>'.$tax->attribute_name.'</option>';
endif;
endforeach;
endif;
?>
</select></p>
<p><label for="<?php echo $this->get_field_id('display_type'); ?>"><?php _e('Display Type:', 'woocommerce') ?></label>
<select id="<?php echo esc_attr( $this->get_field_id('display_type') ); ?>" name="<?php echo esc_attr( $this->get_field_name('display_type') ); ?>">
<option value="list" <?php selected($instance['display_type'], 'list'); ?>><?php _e('List', 'woocommerce'); ?></option>
<option value="dropdown" <?php selected($instance['display_type'], 'dropdown'); ?>><?php _e('Dropdown', 'woocommerce'); ?></option>
</select></p>
<p><label for="<?php echo $this->get_field_id('query_type'); ?>"><?php _e('Query Type:', 'woocommerce') ?></label>
<select id="<?php echo esc_attr( $this->get_field_id('query_type') ); ?>" name="<?php echo esc_attr( $this->get_field_name('query_type') ); ?>">
<option value="and" <?php selected($instance['query_type'], 'and'); ?>><?php _e('AND', 'woocommerce'); ?></option>
<option value="or" <?php selected($instance['query_type'], 'or'); ?>><?php _e('OR', 'woocommerce'); ?></option>
</select></p>
<?php
}
} // class WooCommerce_Widget_Layered_Nav