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<?php
/*
Plugin Name: Breadcrumb NavXT
Plugin URI: http://mtekk.us/code/breadcrumb-navxt/
Description: Adds a breadcrumb navigation showing the visitor's path to their current location. For details on how to use this plugin visit <a href="http://mtekk.us/code/breadcrumb-navxt/">Breadcrumb NavXT</a>.
Version: 5.7.1
Author: John Havlik
Author URI: http://mtekk.us/
License: GPL2
Text Domain: breadcrumb-navxt
Domain Path: /languages
*/
/* Copyright 2007-2017 John Havlik (email : john.havlik@mtekk.us)
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
*/
//Do a PHP version check, require 5.3 or newer
if(version_compare(phpversion(), '5.3.0', '<'))
{
//Only purpose of this function is to echo out the PHP version error
function bcn_phpold()
{
printf('<div class="error"><p>' . __('Your PHP version is too old, please upgrade to a newer version. Your version is %1$s, Breadcrumb NavXT requires %2$s', 'breadcrumb-navxt') . '</p></div>', phpversion(), '5.3.0');
}
//If we are in the admin, let's print a warning then return
if(is_admin())
{
add_action('admin_notices', 'bcn_phpold');
}
return;
}
require_once(dirname(__FILE__) . '/includes/multibyte_supplicant.php');
//Include admin base class
if(!class_exists('mtekk_adminKit'))
{
require_once(dirname(__FILE__) . '/includes/class.mtekk_adminkit.php');
}
//Include the breadcrumb class
require_once(dirname(__FILE__) . '/class.bcn_breadcrumb.php');
//Include the breadcrumb trail class
require_once(dirname(__FILE__) . '/class.bcn_breadcrumb_trail.php');
if(class_exists('WP_Widget'))
{
//Include the WP 2.8+ widget class
require_once(dirname(__FILE__) . '/class.bcn_widget.php');
}
$breadcrumb_navxt = NULL;
//TODO change to extends mtekk_plugKit
class breadcrumb_navxt
{
const version = '5.7.1';
protected $name = 'Breadcrumb NavXT';
protected $identifier = 'breadcrumb-navxt';
protected $unique_prefix = 'bcn';
protected $plugin_basename = null;
protected $opt = null;
protected $breadcrumb_trail = null;
protected $admin = null;
/**
* Constructor for a new breadcrumb_navxt object
*
* @param bcn_breadcrumb_trail $breadcrumb_trail An instance of a bcn_breadcrumb_trail object to use for everything
*/
public function __construct(bcn_breadcrumb_trail $breadcrumb_trail)
{
//We get our breadcrumb trail object from our constructor
$this->breadcrumb_trail = $breadcrumb_trail;
//Grab defaults from the breadcrumb_trail object
$this->opt = $this->breadcrumb_trail->opt;
//We set the plugin basename here
$this->plugin_basename = plugin_basename(__FILE__);
//We need to add in the defaults for CPTs and custom taxonomies after all other plugins are loaded
add_action('wp_loaded', array($this, 'wp_loaded'), 15);
add_action('init', array($this, 'init'));
//Register the WordPress 2.8 Widget
add_action('widgets_init', create_function('', 'return register_widget("'. $this->unique_prefix . '_widget");'));
//Load our network admin if in the network dashboard (yes is_network_admin() doesn't exist)
if(defined('WP_NETWORK_ADMIN') && WP_NETWORK_ADMIN)
{
require_once(dirname(__FILE__) . '/class.bcn_network_admin.php');
//Instantiate our new admin object
$this->admin = new bcn_network_admin($this->breadcrumb_trail, $this->plugin_basename);
}
//Load our main admin if in the dashboard, but only if we're not in the network dashboard (prevents goofy bugs)
else if(is_admin() || defined('WP_UNINSTALL_PLUGIN'))
{
require_once(dirname(__FILE__) . '/class.bcn_admin.php');
//Instantiate our new admin object
$this->admin = new bcn_admin($this->breadcrumb_trail, $this->plugin_basename);
}
}
public function init()
{
add_filter('bcn_allowed_html', array($this, 'allowed_html'), 1, 1);
//We want to run late for using our breadcrumbs
add_filter('tha_breadcrumb_navigation', array($this, 'tha_compat'), 99);
}
public function allowed_html($tags)
{
$allowed_html = array(
'a' => array(
'href' => true,
'title' => true,
'class' => true,
'id' => true,
'media' => true,
'dir' => true,
'relList' => true,
'rel' => true,
'aria-hidden' => true,
'data-icon' => true,
'itemref' => true,
'itemid' => true,
'itemprop' => true,
'itemscope' => true,
'itemtype' => true,
'xmlns:v' => true,
'typeof' => true,
'property' => true,
'vocab' => true,
'translate' => true,
'lang' => true
),
'img' => array(
'alt' => true,
'align' => true,
'height' => true,
'width' => true,
'src' => true,
'srcset' => true,
'sizes' => true,
'id' => true,
'class' => true,
'aria-hidden' => true,
'data-icon' => true,
'itemref' => true,
'itemid' => true,
'itemprop' => true,
'itemscope' => true,
'itemtype' => true,
'xmlns:v' => true,
'typeof' => true,
'property' => true,
'vocab' => true,
'lang' => true
),
'span' => array(
'title' => true,
'class' => true,
'id' => true,
'dir' => true,
'align' => true,
'lang' => true,
'xml:lang' => true,
'aria-hidden' => true,
'data-icon' => true,
'itemref' => true,
'itemid' => true,
'itemprop' => true,
'itemscope' => true,
'itemtype' => true,
'xmlns:v' => true,
'typeof' => true,
'property' => true,
'vocab' => true,
'translate' => true,
'lang' => true
),
'h1' => array(
'title' => true,
'class' => true,
'id' => true,
'dir' => true,
'align' => true,
'lang' => true,
'xml:lang' => true,
'aria-hidden' => true,
'data-icon' => true,
'itemref' => true,
'itemid' => true,
'itemprop' => true,
'itemscope' => true,
'itemtype' => true,
'xmlns:v' => true,
'typeof' => true,
'property' => true,
'vocab' => true,
'translate' => true,
'lang' => true
),
'h2' => array(
'title' => true,
'class' => true,
'id' => true,
'dir' => true,
'align' => true,
'lang' => true,
'xml:lang' => true,
'aria-hidden' => true,
'data-icon' => true,
'itemref' => true,
'itemid' => true,
'itemprop' => true,
'itemscope' => true,
'itemtype' => true,
'xmlns:v' => true,
'typeof' => true,
'property' => true,
'vocab' => true,
'translate' => true,
'lang' => true
),
'meta' => array(
'content' => true,
'property' => true,
'vocab' => true,
'itemprop' => true
)
);
return mtekk_adminKit::array_merge_recursive($tags, $allowed_html);
}
public function get_version()
{
return self::version;
}
public function wp_loaded()
{
breadcrumb_navxt::setup_options($this->opt);
}
public function uninstall()
{
$this->admin->uninstall();
}
/**
* Sets up the extended options for any CPTs, taxonomies or extensions
*
* @param array $opt The options array, passed by reference
*/
static public function setup_options(&$opt)
{
//Add custom post types
breadcrumb_navxt::find_posttypes($opt);
//Add custom taxonomy types
breadcrumb_navxt::find_taxonomies($opt);
//Let others hook into our settings
$opt = apply_filters('bcn_settings_init', $opt);
}
/**
* Places settings into $opts array, if missing, for the registered post types
*
* @param array $opts
*/
static function find_posttypes(&$opts)
{
global $wp_post_types, $wp_taxonomies;
//Loop through all of the post types in the array
foreach($wp_post_types as $post_type)
{
//We only want custom post types
if(!$post_type->_builtin)
{
if(!isset($opts['bpost_' . $post_type->name . '_taxonomy_referer']))
{
//Default to not letting the refering page influence the referer
$opts['bpost_' . $post_type->name . '_taxonomy_referer'] = false;
}
//If the post type does not have settings in the options array yet, we need to load some defaults
if(!isset($opts['Hpost_' . $post_type->name . '_template']) || !$post_type->hierarchical && !isset($opts['Spost_' . $post_type->name . '_taxonomy_type']))
{
//Add the necessary option array members
$opts['Hpost_' . $post_type->name . '_template'] = bcn_breadcrumb::get_default_template();
$opts['Hpost_' . $post_type->name . '_template_no_anchor'] = bcn_breadcrumb::default_template_no_anchor;
if($post_type->has_archive == true || is_string($post_type->has_archive))
{
$opts['bpost_' . $post_type->name . '_archive_display'] = true;
}
else
{
$opts['bpost_' . $post_type->name . '_archive_display'] = false;
}
//Default to not showing a post_root
$opts['apost_' . $post_type->name . '_root'] = 0;
//Default to not displaying a taxonomy
$opts['bpost_' . $post_type->name . '_taxonomy_display'] = false;
//Loop through all of the possible taxonomies
foreach($wp_taxonomies as $taxonomy)
{
//Check for non-public taxonomies
if(!apply_filters('bcn_show_tax_private', $taxonomy->public, $taxonomy->name))
{
continue;
}
//Activate the first taxonomy valid for this post type and exit the loop
if($taxonomy->object_type == $post_type->name || in_array($post_type->name, $taxonomy->object_type))
{
$opts['bpost_' . $post_type->name . '_taxonomy_display'] = true;
$opts['Spost_' . $post_type->name . '_taxonomy_type'] = $taxonomy->name;
break;
}
}
//If there are no valid taxonomies for this type, we default to not displaying taxonomies for this post type
if(!isset($opts['Spost_' . $post_type->name . '_taxonomy_type']))
{
$opts['Spost_' . $post_type->name . '_taxonomy_type'] = 'BCN_DATE';
}
}
}
}
}
/**
* Places settings into $opts array, if missing, for the registered taxonomies
*
* @param $opts
*/
static function find_taxonomies(&$opts)
{
global $wp_taxonomies;
//We'll add our custom taxonomy stuff at this time
foreach($wp_taxonomies as $taxonomy)
{
//We only want custom taxonomies
if(!$taxonomy->_builtin)
{
//If the taxonomy does not have settings in the options array yet, we need to load some defaults
if(!isset($opts['Htax_' . $taxonomy->name . '_template']))
{
//Add the necessary option array members
$opts['Htax_' . $taxonomy->name . '_template'] = __(sprintf('<span property="itemListElement" typeof="ListItem"><a property="item" typeof="WebPage" title="Go to the %%title%% %s archives." href="%%link%%" class="%%type%%"><span property="name">%%htitle%%</span></a><meta property="position" content="%%position%%"></span>', $taxonomy->labels->singular_name), 'breadcrumb-navxt');
$opts['Htax_' . $taxonomy->name . '_template_no_anchor'] = __(sprintf('<span property="itemListElement" typeof="ListItem"><span property="name">%%htitle%%</span><meta property="position" content="%%position%%"></span>', $taxonomy->labels->singular_name), 'breadcrumb-navxt');
}
}
}
}
/**
* Hooks into the theme hook alliance tha_breadcrumb_navigation filter and replaces the trail
* with one generated by Breadcrumb NavXT
*
* @param string $bradcrumb_trail The string breadcrumb trail that we will replace
* @return string The Breadcrumb NavXT assembled breadcrumb trail
*/
public function tha_compat($breadcrumb_trail)
{
//Return our breadcrumb trail
return $this->display(true);
}
/**
* Function updates the breadcrumb_trail options array from the database in a semi intellegent manner
*
* @since 5.0.0
*/
private function get_settings()
{
//Grab the current settings for the current local site from the db
$this->breadcrumb_trail->opt = wp_parse_args(get_option('bcn_options'), $this->opt);
//If we're in multisite mode, look at the three BCN_SETTINGS globals
if(is_multisite())
{
if(defined('BCN_SETTINGS_USE_NETWORK') && BCN_SETTINGS_USE_NETWORK)
{
//Grab the current network wide settings
$this->breadcrumb_trail->opt = wp_parse_args(get_site_option('bcn_options'), $this->opt);
}
else if(defined('BCN_SETTINGS_FAVOR_LOCAL') && BCN_SETTINGS_FAVOR_LOCAL)
{
//Grab the current settings for the current local site from the db
$this->breadcrumb_trail->opt = wp_parse_args(get_option('bcn_options'), $this->breadcrumb_trail->opt);
}
else if(defined('BCN_SETTINGS_FAVOR_NETWORK') && BCN_SETTINGS_FAVOR_NETWORK)
{
//Grab the current settings from the db
$this->breadcrumb_trail->opt = wp_parse_args(get_site_option('bcn_options'), get_option('bcn_options'));
}
}
}
/**
* Outputs the breadcrumb trail
*
* @param bool $return Whether to return or echo the trail.
* @param bool $linked Whether to allow hyperlinks in the trail or not.
* @param bool $reverse Whether to reverse the output or not.
* @param bool $force Whether or not to force the fill function to run.
*/
public function display($return = false, $linked = true, $reverse = false, $force = false)
{
$this->get_settings();
//If we're being forced to fill the trail, clear it before calling fill
if($force)
{
$this->breadcrumb_trail->breadcrumbs = array();
}
//Generate the breadcrumb trail
$this->breadcrumb_trail->fill();
return $this->breadcrumb_trail->display($return, $linked, $reverse);
}
/**
* Outputs the breadcrumb trail with each element encapsulated with li tags
*
* @param bool $return Whether to return or echo the trail.
* @param bool $linked Whether to allow hyperlinks in the trail or not.
* @param bool $reverse Whether to reverse the output or not.
* @param bool $force Whether or not to force the fill function to run.
*/
public function display_list($return = false, $linked = true, $reverse = false, $force = false)
{
$this->get_settings();
//If we're being forced to fill the trail, clear it before calling fill
if($force)
{
$this->breadcrumb_trail->breadcrumbs = array();
}
//Generate the breadcrumb trail
$this->breadcrumb_trail->fill();
return $this->breadcrumb_trail->display_list($return, $linked, $reverse);
}
/**
* Outputs the breadcrumb trail in Schema.org BreadcrumbList compatible JSON-LD
*
* @param bool $return Whether to return or echo the trail.
* @param bool $reverse Whether to reverse the output or not.
* @param bool $force Whether or not to force the fill function to run.
*/
public function display_json_ld($return = false, $reverse = false, $force = false)
{
$this->get_settings();
//If we're being forced to fill the trail, clear it before calling fill
if($force)
{
$this->breadcrumb_trail->breadcrumbs = array();
}
//Generate the breadcrumb trail
$this->breadcrumb_trail->fill();
return $this->breadcrumb_trail->display_json_ld($return, $reverse);
}
}
//Have to bootstrap our startup so that other plugins can replace the bcn_breadcrumb_trail object if they need to
add_action('plugins_loaded', 'bcn_init', 15);
function bcn_init()
{
global $breadcrumb_navxt;
//Create an instance of bcn_breadcrumb_trail
$bcn_breadcrumb_trail = new bcn_breadcrumb_trail();
//Let's make an instance of our object that takes care of everything
$breadcrumb_navxt = new breadcrumb_navxt(apply_filters('bcn_breadcrumb_trail_object', $bcn_breadcrumb_trail));
}
/**
* Outputs the breadcrumb trail
*
* @param bool $return Whether to return or echo the trail. (optional)
* @param bool $linked Whether to allow hyperlinks in the trail or not. (optional)
* @param bool $reverse Whether to reverse the output or not. (optional)
* @param bool $force Whether or not to force the fill function to run. (optional)
*/
function bcn_display($return = false, $linked = true, $reverse = false, $force = false)
{
global $breadcrumb_navxt;
if($breadcrumb_navxt !== null)
{
return $breadcrumb_navxt->display($return, $linked, $reverse, $force);
}
}
/**
* Outputs the breadcrumb trail with each element encapsulated with li tags
*
* @param bool $return Whether to return or echo the trail. (optional)
* @param bool $linked Whether to allow hyperlinks in the trail or not. (optional)
* @param bool $reverse Whether to reverse the output or not. (optional)
* @param bool $force Whether or not to force the fill function to run. (optional)
*/
function bcn_display_list($return = false, $linked = true, $reverse = false, $force = false)
{
global $breadcrumb_navxt;
if($breadcrumb_navxt !== null)
{
return $breadcrumb_navxt->display_list($return, $linked, $reverse, $force);
}
}
/**
* Outputs the breadcrumb trail in Schema.org BreadcrumbList compatible JSON-LD
*
* @param bool $return Whether to return or echo the trail. (optional)
* @param bool $reverse Whether to reverse the output or not. (optional)
* @param bool $force Whether or not to force the fill function to run. (optional)
*/
function bcn_display_json_ld($return = false, $reverse = false, $force = false)
{
global $breadcrumb_navxt;
if($breadcrumb_navxt !== null)
{
return $breadcrumb_navxt->display_json_ld($return, $reverse, $force);
}
}