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<?php
/*
Copyright 2015-2023 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
*/
require_once(dirname(__FILE__) . '/includes/block_direct_access.php');
class bcn_widget extends WP_Widget
{
const version = '7.2.0';
protected $allowed_html = array();
protected $defaults = array('title' => '', 'pretext' => '', 'type' => 'microdata', 'linked' => true, 'reverse' => false, 'front' => false, 'force' => false);
//Default constructor
function __construct()
{
//Filter allowed_html array to allow others to add acceptable tags
$this->allowed_html = apply_filters('bcn_allowed_html', wp_kses_allowed_html('post'));
//@see https://core.trac.wordpress.org/ticket/10527
if(!is_textdomain_loaded('breadcrumb-navxt'))
{
load_plugin_textdomain('breadcrumb-navxt', false, 'breadcrumb-navxt/languages');
}
$ops = array('classname' => 'widget_breadcrumb_navxt', 'description' => __('Adds a breadcrumb trail to your sidebar', 'breadcrumb-navxt'));
parent::__construct('bcn_widget', 'Breadcrumb NavXT', $ops);
}
function widget($args, $instance)
{
//Make sure we grab defaults in the case of out of date instance settings being sent
$instance = wp_parse_args((array) $instance, $this->defaults);
$instance['title'] = apply_filters('widget_title', $instance['title'], $instance, $this->id_base);
$instance['pretext'] = apply_filters('widget_text', $instance['pretext'], $instance);
$instance['pretext'] = apply_filters('bcn_widget_pretext', $instance['pretext'], $instance);
$title = apply_filters('widget_title', $instance['title'], $instance, $this->id_base);
//A bit of a hack but we need the DB settings to know if we should exit early
$opt = get_option('bcn_options');
//If we are on the front page and don't display on the front, return early
if($instance['front'] && is_front_page() && !(is_paged() && $opt['bpaged_display']))
{
return;
}
//Manditory before widget junk
echo $args['before_widget'];
if(!empty($title))
{
echo $args['before_title'] . $title . $args['after_title'];
}
//We'll want to switch between the two breadcrumb output types
if($instance['type'] === 'list')
{
//Display the list output breadcrumb
echo wp_kses($instance['pretext'], $this->allowed_html) . '<ol class="breadcrumb_trail breadcrumbs">';
bcn_display_list(false, $instance['linked'], $instance['reverse'], $instance['force']);
echo '</ol>';
}
else if($instance['type'] === 'microdata' || $instance['type'] === 'breadcrumblist_rdfa')
{
echo '<div class="breadcrumbs" vocab="https://schema.org/" typeof="BreadcrumbList">' . wp_kses($instance['pretext'], $this->allowed_html);
//Display the regular output breadcrumb
bcn_display(false, $instance['linked'], $instance['reverse'], $instance['force']);
echo '</div>';
}
else if($instance['type'] === 'breadcrumblist_microdata')
{
echo '<div class="breadcrumbs" itemscope itemtype="https://schema.org/BreadcrumbList">' . wp_kses($instance['pretext'], $this->allowed_html);
//Display the regular output breadcrumb
bcn_display(false, $instance['linked'], $instance['reverse'], $instance['force']);
echo '</div>';
}
else if($instance['type'] === 'plain')
{
//Display the pretext
echo wp_kses($instance['pretext'], $this->allowed_html);
//Display the regular output breadcrumb
bcn_display(false, $instance['linked'], $instance['reverse'], $instance['force']);
}
else if($instance['type'] === 'microdata_wai_aria')
{
echo '<nav aria-label="Breadcrumb" class="breadcrumbs" vocab="https://schema.org/" typeof="BreadcrumbList">' . wp_kses($instance['pretext'], $this->allowed_html);
//Display the regular output breadcrumb
bcn_display(false, $instance['linked'], $instance['reverse'], $instance['force']);
echo '</nav>';
}
else
{
//If we recieved a type that is not of the built in displays, it must be relegated to an extension plugin
do_action('bcn_widget_display_trail', $instance);
}
//Manditory after widget junk
echo $args['after_widget'];
}
function update($new_instance, $old_instance)
{
//Filter out anything that could be invalid
$old_instance['title'] = strip_tags($new_instance['title']);
$old_instance['pretext'] = wp_kses($new_instance['pretext'], $this->allowed_html);
$old_instance['type'] = strip_tags($new_instance['type']);
//Have to check more than if it is set as it appears this must effectively run twice since WordPress 5.8
$old_instance['linked'] = isset($new_instance['linked']) && $new_instance['linked'] !== false;
$old_instance['reverse'] = isset($new_instance['reverse']) && $new_instance['reverse'] !== false;
$old_instance['front'] = isset($new_instance['front']) && $new_instance['front'] !== false;
$old_instance['force'] = isset($new_instance['force']) && $new_instance['force'] !== false;
return $old_instance;
}
function form($instance)
{
$instance = wp_parse_args((array) $instance, $this->defaults);
?>
<p>
<label for="<?php echo esc_attr($this->get_field_id('title')); ?>"> <?php _e('Title:', 'breadcrumb-navxt'); ?></label>
<input class="widefat" type="text" name="<?php echo esc_attr($this->get_field_name('title')); ?>" id="<?php echo esc_attr($this->get_field_id('title')); ?>" value="<?php echo esc_attr($instance['title']);?>" />
</p>
<p>
<label for="<?php echo esc_attr($this->get_field_id('pretext')); ?>"> <?php _e('Text to show before the trail:', 'breadcrumb-navxt'); ?></label>
<input class="widefat" type="text" name="<?php echo esc_attr($this->get_field_name('pretext')); ?>" id="<?php echo esc_attr($this->get_field_id('pretext')); ?>" value="<?php echo esc_attr($instance['pretext']);?>" />
</p>
<p>
<label for="<?php echo esc_attr($this->get_field_id('type')); ?>"> <?php _e('Output trail as:', 'breadcrumb-navxt'); ?></label>
<select name="<?php echo esc_attr($this->get_field_name('type')); ?>" id="<?php echo esc_attr($this->get_field_id('type')); ?>">
<option value="list" <?php selected('list', $instance['type']);?>><?php _e('List', 'breadcrumb-navxt'); ?></option>
<option value="microdata" <?php selected('microdata', $instance['type']);?>><?php _e('Schema.org BreadcrumbList (RDFa)', 'breadcrumb-navxt'); ?></option>
<option value="microdata_wai_aria" <?php selected('microdata_wai_aria', $instance['type']);?>><?php _e('Schema.org BreadcrumbList (RDFa) with WAI-ARIA', 'breadcrumb-navxt'); ?></option>
<option value="breadcrumblist_microdata" <?php selected('breadcrumblist_microdata', $instance['type']);?>><?php _e('Schema.org BreadcrumbList (microdata)', 'breadcrumb-navxt'); ?></option>
<option value="plain" <?php selected('plain', $instance['type']);?>><?php _e('Plain', 'breadcrumb-navxt'); ?></option>
<?php do_action('bcn_widget_display_types', $instance);?>
</select>
</p>
<p>
<input class="checkbox" type="checkbox" name="<?php echo esc_attr($this->get_field_name('linked')); ?>" id="<?php echo esc_attr($this->get_field_id('linked')); ?>"<?php checked(true, $instance['linked']);?> />
<label for="<?php echo esc_attr($this->get_field_id('linked')); ?>"> <?php _e('Link the breadcrumbs', 'breadcrumb-navxt'); ?></label><br />
<input class="checkbox" type="checkbox" name="<?php echo esc_attr($this->get_field_name('reverse')); ?>" id="<?php echo esc_attr($this->get_field_id('reverse')); ?>"<?php checked(true, $instance['reverse']);?> />
<label for="<?php echo esc_attr($this->get_field_id('reverse')); ?>"> <?php _e('Reverse the order of the trail', 'breadcrumb-navxt'); ?></label><br />
<input class="checkbox" type="checkbox" name="<?php echo esc_attr($this->get_field_name('front')); ?>" id="<?php echo esc_attr($this->get_field_id('front')); ?>"<?php checked(true, $instance['front']);?> />
<label for="<?php echo esc_attr($this->get_field_id('front')); ?>"> <?php _e('Hide the trail on the front page', 'breadcrumb-navxt'); ?></label><br />
<input class="checkbox" type="checkbox" name="<?php echo esc_attr($this->get_field_name('force')); ?>" id="<?php echo esc_attr($this->get_field_id('force')); ?>"<?php checked(true, $instance['force']);?> />
<label for="<?php echo esc_attr($this->get_field_id('force')); ?>"> <?php _e('Ignore breadcrumb cache', 'breadcrumb-navxt'); ?></label><br />
</p>
<?php
}
}