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<?php

Plugin Name: Hierarchical Pages

Version: 1.4

Plugin URI: http://www.saltriversystems.com/website/hierpage/

Description: Adds sidebar widgets to display a context-based list of "nearby" pages, and to display nested categories.

Author: William Lindley

Author URI: http://www.wlindley.com/

License: GPL2

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

if (!class_exists('SRCS_WP_Widget')) {

class SRCS_WP_Widget extends WP_Widget

{

function form_html($instance) {

$option_menu = $this->known_params(1);

foreach (array_keys($option_menu) as $param) {

$param_display[$param] = htmlspecialchars($instance[$param]);

}

foreach ($option_menu as $option_name => $option) {

$checkval='';

$desc = '';

if ($option['desc'])

$desc = " {$option['desc']}";

switch ($option['type']) {

case 'checkbox':

if ($instance[$option_name]) // special HTML and override value

$checkval = 'checked="yes" ';

$param_display[$option_name] = 'yes';

break;

case '':

$option['type'] = 'text';

break;

}

print '<label for="' . $this->get_field_name($option_name) . '">' .

__($option['title']) .

' <input style="width: 200px;" id="' . $this->get_field_id($option_name) .

'" name="' . $this->get_field_name($option_name) .

"\" type=\"{$option['type']}\" {$checkval}value=\"{$param_display[$option_name]}\" /></label>$desc";

}

class HierPageWidget extends SRCS_WP_Widget

{

/**

* Declares the HierPageWidget class.

function HierPageWidget(){

$widget_ops = array('classname' => 'widget_hier_page', 'description' => __( "Hierarchical Page Directory Widget") );

$control_ops = array('width' => 300, 'height' => 300);

$this->WP_Widget('hierpage', __('Hierarchical Pages'), $widget_ops, $control_ops);

}

/**

* Helper function

function hierpages_list_pages($args = '') {

global $post;

global $wp_query;

if ( !isset($args['echo']) )

$args['echo'] = 1;

$output = '';

if(!$args['post_type'])$args['post_type'] = 'page';

// Query pages. NOTE: The array is sorted in alphabetical, or menu, order.

$pages = & get_pages($args);

$page_info = Array();

if ( $pages ) {

$current_post = $wp_query->get_queried_object_id();

foreach ( $pages as $page ) {

$page_info[$page->ID]['parent'] = $page->post_parent;

$page_info[$page->post_parent]['children'][] = $page->ID;

}

// Display the front page?

$front_page = -1; // assume no static front page

if ('page' == get_option('show_on_front')) {

$front_page = get_option('page_on_front');

// Regard flag: always show front page? Otherwise: Show front page only if it has children

if (($args['show_home'] == 'yes') || (sizeof($page_info[$front_page]['children']))) {

$page_info[$front_page]['show'] = 1; // always show front page

}

// add all children of the root node, but only to single depth.

if ($args['show_root'] == 'yes') {

foreach ( $page_info[0]['children'] as $child ) {

if ($child != $front_page) {

$page_info[$child]['show'] = 1;

}

if (is_page()) {

if (is_post_type_hierarchical($args['post_type'])) {

if ($post->ID != $front_page ) {

// The current page is always shown, unless it is the static front page (see above)

$page_info[$post->ID]['show'] = 1;

}

// show the current page's children, if any.

if (is_array($page_info[$current_post]['children'] )) {

foreach ( $page_info[$current_post]['children'] as $child ) {

$page_info[$child]['show'] = 1;

}

$post_parent = $page_info[$current_post]['parent'];

if ($post_parent && ($args['show_siblings'] == 'yes')) {

// if showing siblings, add the current page's parent's other children.

foreach ( $page_info[$post_parent]['children'] as $child ) {

if ($child != $front_page) {

$page_info[$child]['show'] = 1;

}

// Also show parent node's siblings.

$post_grandparent = $page_info[$post_parent]['parent'];

if ($post_grandparent) {

foreach ( $page_info[$post_grandparent]['children'] as $child ) {

if ($child != $front_page) {

$page_info[$child]['show'] = 1;

}

// add all ancestors of the current page.

while ($post_parent) {

$page_info[$post_parent]['show'] = 1;

// show that page's children, if any.

if (is_array($page_info[$post_parent]['children'] )) {

foreach ( $page_info[$post_parent]['children'] as $child ) {

$page_info[$child]['show'] = 1;

}

$post_parent = $page_info[$post_parent]['parent'];

}

// Add pages that were selected

$my_includes = Array();

foreach ( $pages as $page ) {

if ($page_info[$page->ID]['show']) {

$my_includes[] = $page->ID;

}

if ($args['child_of']) {

$my_includes[] = $args['child_of'];

}

if (!empty($my_includes)) {

// List pages, if any. Blank title_li suppresses unwanted elements.

$output .= wp_list_pages( Array('title_li' => '',

'sort_column' => $args['sort_column'],

'sort_order' => $args['sort_order'],

'include' => $my_includes) );

'include' => $my_includes,

'post_type'=> $args['post_type']

) );

}

$output = apply_filters('wp_list_pages', $output);

if ( $args['echo'] )

echo $output;

else

return $output;

}

/**

* Displays the Widget

function widget($args, $instance){

$title = apply_filters('widget_title', empty($instance['title']) ? '' : $instance['title']);

$known_params = $this->known_params(0);

foreach ($known_params as $param) {

if (strlen($instance[$param])) {

$page_options[$param] = $instance[$param];

}

if ($instance['menu_order'] == 'yes') { // Deprecated, eliminated upon form display (see below)

$page_options['sort_column']='menu_order,post_title';

}

print $args['before_widget'];

if ( $title )

print "{$args['before_title']}{$title}{$args['after_title']}";

print '<ul>';

$this->hierpages_list_pages($page_options);

print "</ul>{$args['after_widget']}";

}

function known_params ($options = 0) {

$option_menu = array('title' => array('title' => 'Title:'),

'show_siblings' => array('title' => 'Show siblings to the current page?',

'type' => 'checkbox'),

'show_root' => array('title' => 'Always show top-level pages?',

'type' => 'checkbox'),

'show_home' => array('title' => 'Show the static home page?',

'desc' => '(always shown if it has child pages)',

'type' => 'checkbox'),

'child_of' => array('title' => 'Root page ID:'),

'exclude' => array('title' => 'Exclude pages:',

'desc' => 'List of page IDs to exclude'),

'sort_column' => array('title' => 'Sort field:',

'desc' => 'Comma-separated list: post_title, menu_order, post_date, post_modified, ID, post_author, post_name'),

'sort_order' => array('title' => 'Sort direction:',

'desc' => '(default: ASC)'),

'meta_key' => array('title' => 'Meta Key:'),

'meta_value' => array('title' => 'Meta-key Value:',

'desc' => 'for selecting pages by custom fields'),

'authors' => array('title' => 'Authors:'),

'post_status' => array('title' => 'Post status:',

'desc' => '(default: publish)'),

'post_type' => array('title' => 'Post type:',

'desc' => '(default: page)'),

);

return ($options ? $option_menu : array_keys($option_menu));

}

/**

* Saves the widget's settings.

function update($new_instance, $old_instance){

$instance = $old_instance;

$known_params = $this->known_params();

unset($instance['menu_order']);

foreach ($known_params as $param) {

$instance[$param] = strip_tags(stripslashes($new_instance[$param]));

}

$instance['sort_order'] = strtolower($instance['sort_order']) == 'desc'?'DESC':'ASC';

return $instance;

}

/**

* Creates the edit form for the widget.

function form($instance){

$instance = wp_parse_args( (array) $instance, array('title'=>'') );

if ($instance['menu_order']) {

$instance['sort_column'] = 'menu_order,post_title';

}

if (empty($instance['sort_column'])) {

$instance['sort_column'] = 'post_title';

}

$this->form_html($instance);

}

}// END class

/**

* Register Hierarchical Pages widget.

* Calls 'widgets_init' action after the widget has been registered.

function HierPageInit() {

register_widget('HierPageWidget');

}

* Plugin Name: Hierarchical Categories (combined with Hierarchical Pages)

* Plugin URI: http://www.wlindley.com/

* Description: Adds a sidebar widget to display a context-based list of "nearby" categories.

* Author: William Lindley

* Author URI: http://www.wlindley.com/

class HierCatWidget extends SRCS_WP_Widget

{

/**

* Declares our class.

function HierCatWidget(){

$widget_ops = array('classname' => 'widget_hier_cat', 'description' => __( "Hierarchical Category Widget") );

$control_ops = array('width' => 300, 'height' => 300);

$this->WP_Widget('hiercat', __('Hierarchical Categories'), $widget_ops, $control_ops);

}

/**

* Helper function

function hiercat_list_cats($args) {

global $post;

global $wp_query;

if ( !isset($args['echo']) )

$args['echo'] = 1;

$sort_column = $args['sort_column'];

$output = '';

// Query categories.

$cats = & get_categories($args);

if ($cats['errors']) {

print "<pre>"; print_r($cats); print "</pre>";

return;

}

$cat_info = Array();

if ( $cats ) {

$current_cat = $wp_query->get_queried_object_id();

foreach ( $cats as $cat ) {

$cat_info[$cat->term_id]['parent'] = $cat->category_parent;

$cat_info[$cat->category_parent]['children'][] = $cat->term_id;

}

// add all children of the root node, but only to single depth.

foreach ( $cat_info[0]['children'] as $child ) {

$cat_info[$child]['show'] = 1;

}

// If currently displaying a category, taxonomy, or tag; AND

// if it is the same as the one in this widget...

if ((is_category() || is_tax() || is_tag()) &&

($args['taxonomy'] == get_queried_object()->taxonomy ) ) {

// show the current category's children, if any.

if (is_array($cat_info[$current_cat]['children'] )) {

foreach ( $cat_info[$current_cat]['children'] as $child ) {

$cat_info[$child]['show'] = 1;

}

$cat_parent = $cat_info[$current_cat]['parent'];

if ($cat_parent && ($args['show_siblings'] == 'yes')) {

// if showing siblings, add the current category's parent's other children.

foreach ( $cat_info[$cat_parent]['children'] as $child ) {

$cat_info[$child]['show'] = 1;

}

# Also show parent node's siblings.

$cat_grandparent = $cat_info[$cat_parent]['parent'];

if ($cat_grandparent) {

foreach ( $cat_info[$cat_grandparent]['children'] as $child ) {

$cat_info[$child]['show'] = 1;

}

// add all ancestors of the current category.

while ($cat_parent) {

$cat_info[$cat_parent]['show'] = 1;

$cat_parent = $cat_info[$cat_parent]['parent'];

}

$my_includes = Array();

// Add categories that were selected

foreach ( $cats as $cat ) {

if ($cat_info[$cat->term_id]['show']) {

$my_includes[] =$cat->term_id;

}

if (!empty($my_includes)) {

// List categories, if any. Blank title_li suppresses unwanted elements.

$qargs = Array('title_li' => '', 'hide_empty' => 0, 'include' => $my_includes,

'order' => $args['order'], 'orderby' => $args['orderby'],

'show_count' => $args['show_count']);

if (!empty($args['taxonomy'])) {

$qargs['taxonomy'] = $args['taxonomy'];

}

$output .= wp_list_categories( $qargs );

}

$output = apply_filters('wp_list_categories', $output);

if ( $args['echo'] )

echo $output;

else

return $output;

}

function known_params ($options = 0) {

$option_menu = array('title' => array('title' => 'Title:'),

'show_siblings' => array('title' => 'Show siblings to the current category?',

'type' => 'checkbox'),

'include' => array('title' => 'Include:',

'desc' => 'Comma-delimited list of category IDs, or blank for all'),

'exclude' => array('title' => 'Exclude:'),

'orderby' => array('title' => 'Sort field:',

'desc' => 'Enter one of: name, count, term_group, slug or a custom value. Default: name'),

'order' => array('title' => 'Sort direction:',

'desc' => '(default: ASC)'),

'child_of' => array('title' => 'Only display Categories below this ID'),

'hide_empty' => array('title' => 'Hide empty categories?',

'type' => 'checkbox'),

'show_count' => array('title' => 'Show count of category entries?',

'type' => 'checkbox'),

'taxonomy' => array('title' => 'Custom taxonomy:'),

);

if ($options) {

$taxons = get_taxonomies();

$option_menu['taxonomy']['desc'] = 'Enter one of: ' .

implode(', ',array_keys($taxons)) . ' or blank for post categories.';

}

return ($options ? $option_menu : array_keys($option_menu));

}

/**

* Displays the Widget

function widget($args, $instance){

$known_params = $this->known_params(0);

foreach ($known_params as $param) {

if (strlen($instance[$param]))

$cat_options[$param] = $instance[$param];

}

$cat_options['title'] = apply_filters('widget_title', $cat_options['title']);

// WordPress defaults to hiding: thus, always specify.

$cat_options['hide_empty'] = $cat_options['hide_empty'] == 'yes' ? 1 : 0;

print $args['before_widget'];

if ( strlen($cat_options['title']) )

print "{$args['before_title']}{$cat_options['title']}{$args['after_title']}";

print "<ul>";

$this->hiercat_list_cats($cat_options);

print "</ul>{$after_widget}";

}

/**

* Saves the widget's settings.

function update($new_instance, $old_instance){

$instance = $old_instance;

$known_params = $this->known_params();

foreach ($known_params as $param) {

$instance[$param] = strip_tags(stripslashes($new_instance[$param]));

}

return $instance;

}

/**

* Creates the edit form for the widget.

function form($instance){

//Defaults

$instance = wp_parse_args( (array) $instance, array('title'=>'') );

$this->form_html($instance);

}

}// END class

/**

* Register Hierarchical Categories widget.

* Calls 'widgets_init' action after the widget has been registered.

function HierCatInit() {

register_widget('HierCatWidget');

}

* Initialize both widgets

add_action('widgets_init', 'HierCatInit');

add_action('widgets_init', 'HierPageInit');

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<?php
/*
Plugin Name: Hierarchical Pages
Version: 1.4
Plugin URI: http://www.saltriversystems.com/website/hierpage/
Description: Adds sidebar widgets to display a context-based list of "nearby" pages, and to display nested categories.
Author: William Lindley
Author URI: http://www.wlindley.com/
License: GPL2
*/

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

if (!class_exists('SRCS_WP_Widget')) {
  class SRCS_WP_Widget extends WP_Widget
  {
    function form_html($instance) {
      $option_menu = $this->known_params(1);
      foreach (array_keys($option_menu) as $param) {
	$param_display[$param] = htmlspecialchars($instance[$param]);
      }

foreach ($option_menu as $option_name => $option) {
	$checkval='';
	$desc = '';
	if ($option['desc'])
	 $desc = " {$option['desc']}";
	switch ($option['type']) {
	case 'checkbox':
	 if ($instance[$option_name]) // special HTML and override value
	 $checkval = 'checked="yes" ';
	 $param_display[$option_name] = 'yes';
	 break;
	case '':
	 $option['type'] = 'text';
	 break;
	}
	print '<label for="' . $this->get_field_name($option_name) . '">' . 
	 __($option['title']) . 
	 ' <input style="width: 200px;" id="' . $this->get_field_id($option_name) . 
	 '" name="' . $this->get_field_name($option_name) . 
	 "\" type=\"{$option['type']}\" {$checkval}value=\"{$param_display[$option_name]}\" /></label>$desc";
 }
 }
 }
}

class HierPageWidget extends SRCS_WP_Widget
{
  /**
   * Declares the HierPageWidget class.
   *
   */
  function HierPageWidget(){
    $widget_ops = array('classname' => 'widget_hier_page', 'description' => __( "Hierarchical Page Directory Widget") );
    $control_ops = array('width' => 300, 'height' => 300);
    $this->WP_Widget('hierpage', __('Hierarchical Pages'), $widget_ops, $control_ops);
  }

/**
   * Helper function
   *
   */
  function hierpages_list_pages($args = '') {
    global $post;
    global $wp_query;

if ( !isset($args['echo']) )
      $args['echo'] = 1;

$output = '';

// Query pages.  NOTE: The array is sorted in alphabetical, or menu, order.
    $pages = & get_pages($args);
    $page_info = Array();

if ( $pages ) {
      $current_post = $wp_query->get_queried_object_id();

foreach ( $pages as $page ) {
	$page_info[$page->ID]['parent'] = $page->post_parent;
	$page_info[$page->post_parent]['children'][] = $page->ID;
      }

// Display the front page?
      $front_page = -1; // assume no static front page
      if ('page' == get_option('show_on_front')) {
	$front_page = get_option('page_on_front');
	// Regard flag: always show front page?  Otherwise: Show front page only if it has children
	if (($args['show_home'] == 'yes') || (sizeof($page_info[$front_page]['children']))) {
	  $page_info[$front_page]['show'] = 1;	// always show front page
	}
      }
	
      // add all children of the root node, but only to single depth.
      if ($args['show_root'] == 'yes') {
	foreach ( $page_info[0]['children'] as $child ) {
	  if ($child != $front_page) {
	    $page_info[$child]['show'] = 1;
	  }
	}
      }
      
      if (is_page()) {
	if ($post->ID != $front_page ) {
	  // The current page is always shown, unless it is the static front page (see above)
	  $page_info[$post->ID]['show'] = 1;
	}
	
	// show the current page's children, if any.
	if (is_array($page_info[$current_post]['children'] )) {
	   foreach ( $page_info[$current_post]['children'] as $child ) {
	      $page_info[$child]['show'] = 1;
	   }
	}

$post_parent = $page_info[$current_post]['parent'];
	if ($post_parent && ($args['show_siblings'] == 'yes')) {
	  // if showing siblings, add the current page's parent's other children.
	  foreach ( $page_info[$post_parent]['children'] as $child ) {
	    if ($child != $front_page) {
	      $page_info[$child]['show'] = 1;
	    }
	  }

// Also show parent node's siblings.
	  $post_grandparent = $page_info[$post_parent]['parent'];
	  if ($post_grandparent) {
	    foreach ( $page_info[$post_grandparent]['children'] as $child ) {
	      if ($child != $front_page) {
		$page_info[$child]['show'] = 1;
	      }
	    }
	  }
	}
	
	// add all ancestors of the current page.
	while ($post_parent) {
	  $page_info[$post_parent]['show'] = 1;
          // show that page's children, if any.                                                            
          if (is_array($page_info[$post_parent]['children'] )) {
            foreach ( $page_info[$post_parent]['children'] as $child ) {
              $page_info[$child]['show'] = 1;
            }
          }
	  $post_parent = $page_info[$post_parent]['parent'];
	}
      }
      
      // Add pages that were selected
      $my_includes = Array();
      foreach ( $pages as $page ) {
	if ($page_info[$page->ID]['show']) {
	  $my_includes[] = $page->ID;
	}
      }
      if ($args['child_of']) {
        $my_includes[] = $args['child_of'];
      }
      
      if (!empty($my_includes)) {
        // List pages, if any. Blank title_li suppresses unwanted elements.
        $output .= wp_list_pages( Array('title_li' => '',
					'sort_column' => $args['sort_column'],
					'sort_order' => $args['sort_order'],
					'include' => $my_includes) );
      }
    }

$output = apply_filters('wp_list_pages', $output);
    
    if ( $args['echo'] )
      echo $output;
    else
      return $output;
  }

/**
   * Displays the Widget
   *
   */
  function widget($args, $instance){

$title = apply_filters('widget_title', empty($instance['title']) ? '' : $instance['title']);
    $known_params = $this->known_params(0);
    foreach ($known_params as $param) {
      if (strlen($instance[$param])) {
	$page_options[$param] = $instance[$param];
      }
    }
      
    if ($instance['menu_order'] == 'yes') { // Deprecated, eliminated upon form display (see below)
      $page_options['sort_column']='menu_order,post_title';
    }

print $args['before_widget'];
 if ( $title )
 print "{$args['before_title']}{$title}{$args['after_title']}";
 print '<ul>';
 $this->hierpages_list_pages($page_options);
 print "</ul>{$args['after_widget']}";
 }

function known_params ($options = 0) {
 $option_menu = array('title' => array('title' => 'Title:'),
			 'show_siblings' => array('title' => 'Show siblings to the current page?',
						 'type' => 'checkbox'),
			 'show_root' => array('title' => 'Always show top-level pages?',
					 'type' => 'checkbox'),
			 'show_home' => array('title' => 'Show the static home page?',
					 'desc' => '(always shown if it has child pages)',
					 'type' => 'checkbox'),
			 'child_of' => array('title' => 'Root page ID:'),
			 'exclude' => array('title' => 'Exclude pages:',
					 'desc' => 'List of page IDs to exclude'),
			 'sort_column' => array('title' => 'Sort field:',
						'desc' => 'Comma-separated list: post_title, menu_order, post_date, post_modified, ID, post_author, post_name'),
			 'sort_order' => array('title' => 'Sort direction:',
					 'desc' => '(default: ASC)'),
			 'meta_key' => array('title' => 'Meta Key:'),
			 'meta_value' => array('title' => 'Meta-key Value:',
					 'desc' => 'for selecting pages by custom fields'),
			 'authors' => array('title' => 'Authors:'),
			 'post_status' => array('title' => 'Post status:',
						'desc' => '(default: publish)'),
			 );
 return ($options ? $option_menu : array_keys($option_menu));
 }

/**
   * Saves the widget's settings.
   *
   */
  function update($new_instance, $old_instance){
    $instance = $old_instance;
    $known_params = $this->known_params();
    unset($instance['menu_order']);
    foreach ($known_params as $param) {
      $instance[$param] = strip_tags(stripslashes($new_instance[$param]));
    }
    $instance['sort_order'] = strtolower($instance['sort_order']) == 'desc'?'DESC':'ASC';
    return $instance;
  }

/**
   * Creates the edit form for the widget.
   *
   */
  function form($instance){
    $instance = wp_parse_args( (array) $instance, array('title'=>'') );
    if ($instance['menu_order']) {
      $instance['sort_column'] = 'menu_order,post_title';
    }
    if (empty($instance['sort_column'])) {
      $instance['sort_column'] = 'post_title';
    }

$this->form_html($instance);
  }

}// END class

/**
 * Register Hierarchical Pages widget.
 *
 * Calls 'widgets_init' action after the widget has been registered.
 */
function HierPageInit() {
  register_widget('HierPageWidget');
}

/*
   * Plugin Name: Hierarchical Categories (combined with Hierarchical Pages)
   * Plugin URI: http://www.wlindley.com/
   * Description: Adds a sidebar widget to display a context-based list of "nearby" categories.
   * Author: William Lindley
   * Author URI: http://www.wlindley.com/
   */

class HierCatWidget extends SRCS_WP_Widget
{
  /**
   * Declares our class.
   *
   */
  function HierCatWidget(){
    $widget_ops = array('classname' => 'widget_hier_cat', 'description' => __( "Hierarchical Category Widget") );
    $control_ops = array('width' => 300, 'height' => 300);
    $this->WP_Widget('hiercat', __('Hierarchical Categories'), $widget_ops, $control_ops);
  }

/**
   * Helper function
   *
   */
  function hiercat_list_cats($args) {
    global $post;
    global $wp_query;

if ( !isset($args['echo']) )
      $args['echo'] = 1;
    $sort_column = $args['sort_column'];

$output = '';

// Query categories.
 $cats = & get_categories($args);
 if ($cats['errors']) {
 print "<pre>"; print_r($cats); print "</pre>";
 return;
 }
 $cat_info = Array();

if ( $cats ) {
      $current_cat = $wp_query->get_queried_object_id();

foreach ( $cats as $cat ) {
	$cat_info[$cat->term_id]['parent'] = $cat->category_parent;
	$cat_info[$cat->category_parent]['children'][] = $cat->term_id;
      }

// add all children of the root node, but only to single depth.
      foreach ( $cat_info[0]['children'] as $child ) {
	$cat_info[$child]['show'] = 1;
      }
      
      // If currently displaying a category, taxonomy, or tag; AND
      // if it is the same as the one in this widget...
      if ((is_category() || is_tax() || is_tag()) && 
	  ($args['taxonomy'] == get_queried_object()->taxonomy ) ) {
	// show the current category's children, if any.
	if (is_array($cat_info[$current_cat]['children'] )) {
	   foreach ( $cat_info[$current_cat]['children'] as $child ) {
	      $cat_info[$child]['show'] = 1;
	   }
	}

$cat_parent = $cat_info[$current_cat]['parent'];
	if ($cat_parent && ($args['show_siblings'] == 'yes')) {
	  // if showing siblings, add the current category's parent's other children.
	  foreach ( $cat_info[$cat_parent]['children'] as $child ) {
	    $cat_info[$child]['show'] = 1;
	  }

# Also show parent node's siblings.
	  $cat_grandparent = $cat_info[$cat_parent]['parent'];
	  if ($cat_grandparent) {
	    foreach ( $cat_info[$cat_grandparent]['children'] as $child ) {
		$cat_info[$child]['show'] = 1;
	    }
	  }
	}
	
	// add all ancestors of the current category.
	while ($cat_parent) {
	  $cat_info[$cat_parent]['show'] = 1;
	  $cat_parent = $cat_info[$cat_parent]['parent'];
	}
      }
      
      $my_includes = Array();
      // Add categories that were selected
      foreach ( $cats as $cat ) {
	if ($cat_info[$cat->term_id]['show']) {
	  $my_includes[] =$cat->term_id;
	}
      }
      
      if (!empty($my_includes)) {
        // List categories, if any. Blank title_li suppresses unwanted elements.
        $qargs = Array('title_li' => '', 'hide_empty' => 0, 'include' => $my_includes,
                      'order' => $args['order'], 'orderby' => $args['orderby'],
                      'show_count' => $args['show_count']);
        if (!empty($args['taxonomy'])) {
          $qargs['taxonomy'] = $args['taxonomy'];
        }
        $output .= wp_list_categories( $qargs );
      }
    }

$output = apply_filters('wp_list_categories', $output);
    
    if ( $args['echo'] )
      echo $output;
    else
      return $output;
  }

$this->hiercat_list_cats($cat_options);
 print "</ul>{$after_widget}";
 }

/**
   * Saves the widget's settings.
   *
   */
  function update($new_instance, $old_instance){
    $instance = $old_instance;

$known_params = $this->known_params();
    foreach ($known_params as $param) {
      $instance[$param] = strip_tags(stripslashes($new_instance[$param]));
    }
    return $instance;
  }

/**
   * Creates the edit form for the widget.
   *
   */
  function form($instance){
    //Defaults
    $instance = wp_parse_args( (array) $instance, array('title'=>'') );

$this->form_html($instance);
  }

}// END class

/**
 * Register Hierarchical Categories widget.
 *
 * Calls 'widgets_init' action after the widget has been registered.
 */
function HierCatInit() {
  register_widget('HierCatWidget');
}

/*
 * Initialize both widgets
 */

add_action('widgets_init', 'HierCatInit');
add_action('widgets_init', 'HierPageInit');

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/**
   * Helper function
   *
   */
  function hierpages_list_pages($args = '') {
    global $post;
    global $wp_query;

if ( !isset($args['echo']) )
      $args['echo'] = 1;

$output = '';
    
 
if(!$args['post_type'])$args['post_type'] = 'page';

// Query pages.  NOTE: The array is sorted in alphabetical, or menu, order.
    $pages = & get_pages($args);

$page_info = Array();

if ( $pages ) {
      $current_post = $wp_query->get_queried_object_id();

foreach ( $pages as $page ) {
	$page_info[$page->ID]['parent'] = $page->post_parent;
	$page_info[$page->post_parent]['children'][] = $page->ID;
      }

// Display the front page?
      $front_page = -1; // assume no static front page
      if ('page' == get_option('show_on_front')) {
	$front_page = get_option('page_on_front');
	// Regard flag: always show front page?  Otherwise: Show front page only if it has children
	if (($args['show_home'] == 'yes') || (sizeof($page_info[$front_page]['children']))) {
	  $page_info[$front_page]['show'] = 1;	// always show front page
	}
      }
	
      // add all children of the root node, but only to single depth.
      if ($args['show_root'] == 'yes') {
	foreach ( $page_info[0]['children'] as $child ) {
	  if ($child != $front_page) {
	    $page_info[$child]['show'] = 1;
	  }
	}
      }
      
      if (is_post_type_hierarchical($args['post_type'])) {
	if ($post->ID != $front_page ) {
	  // The current page is always shown, unless it is the static front page (see above)
	  $page_info[$post->ID]['show'] = 1;
	}

// show the current page's children, if any.
	if (is_array($page_info[$current_post]['children'] )) {
	   foreach ( $page_info[$current_post]['children'] as $child ) {
	      $page_info[$child]['show'] = 1;
	   }
	}

// add all ancestors of the current page.
	while ($post_parent) {
	  $page_info[$post_parent]['show'] = 1;
          // show that page's children, if any.                                                            
          if (is_array($page_info[$post_parent]['children'] )) {
            foreach ( $page_info[$post_parent]['children'] as $child ) {
              $page_info[$child]['show'] = 1;
            }
          }
	  $post_parent = $page_info[$post_parent]['parent'];
	}
      }
      
      // Add pages that were selected
      $my_includes = Array();

foreach ( $pages as $page ) {
	if ($page_info[$page->ID]['show']) {
	  $my_includes[] = $page->ID;
	}
      }
      if ($args['child_of']) {
        $my_includes[] = $args['child_of'];
      }
      
      if (!empty($my_includes)) {
        // List pages, if any. Blank title_li suppresses unwanted elements.
        $output .= wp_list_pages( Array('title_li' => '',
					'sort_column' => $args['sort_column'],
					'sort_order' => $args['sort_order'],
					'include' => $my_includes,
                                        'post_type'=> $args['post_type']
                                        ) );
      }
    }

$output = apply_filters('wp_list_pages', $output);
    
    if ( $args['echo'] )
      echo $output;
    else
      return $output;
  }

/**
   * Displays the Widget
   *
   */
  function widget($args, $instance){

function known_params ($options = 0) {
 $option_menu = array('title' => array('title' => 'Title:'),
			 'show_siblings' => array('title' => 'Show siblings to the current page?',
						 'type' => 'checkbox'),
			 'show_root' => array('title' => 'Always show top-level pages?',
					 'type' => 'checkbox'),
			 'show_home' => array('title' => 'Show the static home page?',
					 'desc' => '(always shown if it has child pages)',
					 'type' => 'checkbox'),
			 'child_of' => array('title' => 'Root page ID:'),
			 'exclude' => array('title' => 'Exclude pages:',
					 'desc' => 'List of page IDs to exclude'),
			 'sort_column' => array('title' => 'Sort field:',
						'desc' => 'Comma-separated list: post_title, menu_order, post_date, post_modified, ID, post_author, post_name'),
			 'sort_order' => array('title' => 'Sort direction:',
					 'desc' => '(default: ASC)'),
			 'meta_key' => array('title' => 'Meta Key:'),
			 'meta_value' => array('title' => 'Meta-key Value:',
					 'desc' => 'for selecting pages by custom fields'),
			 'authors' => array('title' => 'Authors:'),
			 'post_status' => array('title' => 'Post status:',
						'desc' => '(default: publish)'),
			 'post_type' => array('title' => 'Post type:',
						'desc' => '(default: page)'),
			 );
 return ($options ? $option_menu : array_keys($option_menu));
 }