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<?php
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// $Id: menu_breadcrumb.module,v 1.6 2009/08/30 22:13:21 xuriz Exp $
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/**
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* @file
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* The main file for the menu_breadcrumb module.
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*
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* By default, Drupal 6 will use the Navigation menu for the breadcrumb.
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* This module allows you to use the menu the current page belongs to for
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* the breadcrumb.
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*
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* As an added bonus, it also allows you to append the page title to the
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* breadcrumb (either as a clickable url or not) and hide the breadcrumb
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* if it only contains the link to the front page.
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*
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* Maintained by: Geoffrey de Vlugt <gdevlugt@gmail.com>
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*/
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/**
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* Implementation of hook_help().
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*/
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function menu_breadcrumb_help($path, $arg) {
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$output = '';
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switch ($path) {
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case 'admin/settings/modules#description':
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$output = t('Allows you to use the menu the current page belongs to for the breadcrumb.');
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break;
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case 'admin/settings/menu_breadcrumb':
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$output = t('<p>By default, Drupal 6 will use the Navigation menu for the breadcrumb. This module allows you to use the menu the current page belongs to for the breadcrumb.</p><p>As an added bonus, it also allows you to append the page title to the breadcrumb (either as a clickable url or not) and hide the breadcrumb if it only contains the link to the front page.</p>');
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break;
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}
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return $output;
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}
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/**
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* Implementation of hook_menu().
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*/
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function menu_breadcrumb_menu() {
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$items = array();
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$items['admin/settings/menu_breadcrumb'] = array(
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'title' => 'Menu breadcrumb',
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'description' => 'Configure menu breadcrumb.',
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'page callback' => 'drupal_get_form',
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'page arguments' => array('menu_breadcrumb_admin_settings_form'),
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'access arguments' => array('administer site configuration'),
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'type' => MENU_NORMAL_ITEM,
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);
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return $items;
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}
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/**
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* Implementation of hook_init().
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*/
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function menu_breadcrumb_init() {
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if (variable_get('menu_breadcrumb_determine_menu', 1)) {
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$menu_list = variable_get('menu_breadcrumb_menus', array('admin_menu', 'devel'));
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$filter = variable_get('menu_breadcrumb_menus_filter', 'blacklist');
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$menu_item = menu_get_item();
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$result = db_query("SELECT mlid, menu_name FROM {menu_links} WHERE link_path = '%s'", $menu_item['href']);
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while ($menu_link = db_fetch_array($result)) {
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// @see http://www.php.net/manual/en/function.in-array.php#86695
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$menu_in_list = in_array($menu_link['menu_name'], $menu_list, TRUE);
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if ( ( $filter == 'whitelist' && $menu_in_list ) ||
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( $filter == 'blacklist' && !$menu_in_list ) ) {
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menu_set_active_menu_name($menu_link['menu_name']);
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break;
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}
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}
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}
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$breadcrumb = drupal_get_breadcrumb();
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if (variable_get('menu_breadcrumb_append_node_title', 0) == 1) {
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if (variable_get('menu_breadcrumb_append_node_url', 0) == 1) {
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$breadcrumb[] = l(drupal_get_title(), $_GET['q'], array('html' => TRUE,));
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}
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else {
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$breadcrumb[] = drupal_get_title();
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}
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}
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if (count($breadcrumb) == 1 && variable_get('menu_breadcrumb_hide_on_single_item', 0)) {
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$breadcrumb = array();
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}
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drupal_set_breadcrumb($breadcrumb);
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}
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/**
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* Menu breadcrumb admin settings form.
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*
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* @return
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* The settings form used by Menu breadcrumb.
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*/
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function menu_breadcrumb_admin_settings_form() {
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$form['menu_breadcrumb_determine_menu'] = array(
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'#type' => 'checkbox',
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'#title' => t('Use menu the page belongs to for the breadcrumb.'),
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'#description' => t('By default, Drupal 6 will use the Navigation menu for the breadcrumb. If you want to use the menu the active page belongs to for the breadcrumb, enable this option.'),
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'#default_value' => variable_get('menu_breadcrumb_determine_menu', 1),
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);
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$form['menu_breadcrumb_append_node_title'] = array(
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'#type' => 'checkbox',
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'#title' => t('Append page title to breadcrumb'),
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'#description' => t('Choose whether or not the page title should be included in the breadcrumb.'),
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'#default_value' => variable_get('menu_breadcrumb_append_node_title', 0),
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);
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$form['menu_breadcrumb_append_node_url'] = array(
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'#type' => 'checkbox',
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'#title' => t('Appended page title as an URL.'),
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'#description' => t('Choose whether or not the appended page title should be an URL.'),
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'#default_value' => variable_get('menu_breadcrumb_append_node_url', 0),
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);
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$form['menu_breadcrumb_hide_on_single_item'] = array(
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'#type' => 'checkbox',
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'#title' => t('Hide the breadcrumb if the breadcrumb only contains the link to the front page.'),
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'#description' => t('Choose whether or not the breadcrumb should be hidden if the breadcrumb only contains a link to the front page (<em>Home</em>.).'),
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'#default_value' => variable_get('menu_breadcrumb_hide_on_single_item', 0),
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);
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$include_exclude_description = 'Use this to specify which menus are used to generate breadcrumbs. ' ;
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$form['include_exclude'] = array(
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'#type' => 'fieldset',
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'#title' => t('Include / Exclude Menus'),
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'#description' => t($include_exclude_description),
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) ;
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$form['include_exclude']['menu_breadcrumb_menus_filter'] = array(
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'#type' => 'radios',
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'#title' => t('Menu filter'),
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'#options' => array(
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'blacklist' => t('Blacklist - Menu items will never be chosen from the menus selected below.'),
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'whitelist' => t('Whitelist - Menu items will only be chosen from the menus selected below.'),
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),
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'#default_value' => variable_get('menu_breadcrumb_menus_filter', 'blacklist'),
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);
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$form['include_exclude']['menu_breadcrumb_menus'] = array(
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'#type' => 'checkboxes',
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'#title' => t('Menu list'),
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'#description' => t('Select which menus to apply the blacklist / whitelist to.'),
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'#options' => drupal_map_assoc(menu_get_names()),
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'#default_value' => variable_get('menu_breadcrumb_menus', array('admin_menu', 'devel')),
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);
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return system_settings_form($form);
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}
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