/**
* Appends an "active_section" property to every post being returned during bu_navigation_get_pages
*
* @param array $pages Associative array of pages keyed on page ID
* @return array Filtered associative array of pages with active_section member variable set
*/
function bu_navigation_filter_pages_ancestors($pages)
{
global $wpdb, $post;
// Only useful during single post query
if (!$post) {
return $pages;
}
// Only needed for hierarchical post types
$post_type_object = get_post_type_object($post->post_type);
if (!$post_type_object->hierarchical) {
return $pages;
}
$ancestors = bu_navigation_gather_sections($post->ID, array('post_types' => $post->post_type));
$filtered = array();
if (is_array($pages) && count($pages) > 0) {
if (is_array($ancestors) && count($ancestors) > 0) {
foreach ($pages as $page) {
$page->active_section = false;
if (in_array($page->ID, $ancestors) && $page->ID != $post->ID) {
$page->active_section = true;
}
$filtered[$page->ID] = $page;
}
} else {
$filtered = $pages;
}
}
return $filtered;
}
/**
* Filters arguments passed to bu_navigation_list_pages from widget display
*
* This is an ugly way of short circuiting the logic within bu_navigation_list_pages to not
* display all sections.
*/
function widget_bu_pages_args_adaptive($args)
{
remove_filter('widget_bu_pages_args', 'widget_bu_pages_args_adaptive');
if ($args['page_id']) {
$section_args = array('post_types' => $args['post_types']);
$sections = bu_navigation_gather_sections($args['page_id'], $section_args);
$args['sections'] = $sections;
$args['page_id'] = NULL;
}
return $args;
}
/**
* Returns HTML fragment containing a section title
*
* @param array $args widget args, as passed to WP_Widget::widget
* @param array $instance widget instance args, as passed to WP_Widget::widget
* @return string HTML fragment with title
*/
public function section_title($args, $instance)
{
global $post;
$html = $title = $href = '';
$section_id = 0;
// Determine which post to use for the section title
if ($instance['navigation_style'] != 'site') {
// Gather ancestors
$sections = bu_navigation_gather_sections($post->ID, array('post_types' => $post->post_type));
// Adaptive navigation style uses the grandparent of current post
if ($instance['navigation_style'] == 'adaptive') {
$grandparent_offset = count($sections) - 2;
// If the current page is the last item, go up one further
if (end($sections) == $post->ID) {
$grandparent_offset--;
}
if (isset($sections[$grandparent_offset])) {
$section_id = $sections[$grandparent_offset];
}
} else {
// Default to top level post (if we have one)
if (isset($sections[1])) {
$section_id = $sections[1];
}
}
}
// Use section post for title
if ($section_id) {
$section = get_post($section_id);
// Prevent usage of non-published posts as titles
if ('publish' === $section->post_status) {
// Second argument prevents usage of default (no title) label
$title = bu_navigation_get_label($section, '');
$href = get_permalink($section->ID);
}
}
// Fallback to site title if we're still empty
if (empty($title)) {
$title = get_bloginfo('name');
$href = trailingslashit(get_bloginfo('url'));
}
if ($title && $href) {
$html = sprintf("<a class=\"content_nav_header\" href=\"%s\">%s</a>\n", esc_attr($href), $title);
}
return $html;
}
public function filter_posts($posts)
{
if ($this->post_parent) {
$section_args = array('direction' => 'down', 'depth' => 0, 'post_types' => array($this->post_type));
$sections = bu_navigation_gather_sections($this->post_parent, $section_args);
if (is_array($sections) && count($sections) > 0) {
$filtered = array();
foreach ($posts as $p) {
if (in_array($p->post_parent, $sections) || in_array($p->ID, $sections)) {
array_push($filtered, $p);
}
}
$posts = $filtered;
}
}
return $posts;
}
/**
* Generate page parent select menu
*
* @uses bu_filter_pages_parent_dropdown().
*
* @param string $post_type required -- post type to filter posts for
* @param int $selected post ID of the selected post
* @param array $args optional configuration object
*
* @return string the resulting dropdown markup
*/
function bu_navigation_page_parent_dropdown($post_type, $selected = 0, $args = array())
{
$defaults = array('echo' => 1, 'select_id' => 'bu_filter_pages', 'select_name' => 'post_parent', 'select_classes' => '', 'post_status' => array('publish', 'private'));
$r = wp_parse_args($args, $defaults);
// Grab top level pages for current post type
$args = array('direction' => 'down', 'depth' => 1, 'post_types' => (array) $post_type);
$sections = bu_navigation_gather_sections(0, $args);
$args = array('suppress_filter_pages' => TRUE, 'sections' => $sections, 'post_types' => (array) $post_type, 'post_status' => (array) $r['post_status']);
$pages = bu_navigation_get_pages($args);
$pages_by_parent = bu_navigation_pages_by_parent($pages);
$options = "\n\t<option value=\"0\">" . __('Show all sections') . "</option>\r";
// Get options
ob_start();
bu_filter_pages_parent_dropdown($pages_by_parent, $selected);
$options .= ob_get_contents();
ob_end_clean();
$classes = !empty($r['select_classes']) ? " class=\"{$r['select_classes']}\"" : '';
$dropdown = sprintf("<select id=\"%s\" name=\"%s\"%s>\r%s\r</select>\r", $r['select_id'], $r['select_name'], $classes, $options);
if ($r['echo']) {
echo $dropdown;
}
return $dropdown;
}
public function test_bu_navigation_get_post_link()
{
global $wp_rewrite;
// Non-Page Hierarchical Post Type 'Default Permalinks' do not work for child posts prior to 4.0
// @see https://core.trac.wordpress.org/ticket/29615
if ($wp_rewrite->using_permalinks() && version_compare($GLOBALS['wp_version'], '4.4', '>=')) {
$grandchild = $this->posts['test_grandchild'];
$grandchild = get_post($grandchild);
// With ancestors
$ancestors = bu_navigation_gather_sections($grandchild->ID, array('direction' => 'up'));
$this->assertEquals(get_post_permalink($grandchild), bu_navigation_get_post_link($grandchild, $ancestors));
// Without ancestors
$this->assertEquals(get_post_permalink($grandchild), bu_navigation_get_post_link($grandchild));
}
}
function bu_navigation_breadcrumbs($args = '')
{
global $post;
$defaults = array('post' => $post, 'glue' => ' » ', 'container_tag' => 'div', 'container_id' => 'breadcrumbs', 'container_class' => '', 'anchor_class' => 'crumb', 'crumb_tag' => '', 'crumb_current' => 1, 'anchor_current' => 0, 'echo' => 0, 'home' => false, 'home_label' => 'Home', 'prefix' => '', 'suffix' => '', 'include_statuses' => 'publish', 'include_hidden' => false, 'show_links' => true);
$r = wp_parse_args($args, $defaults);
if ($r['post']) {
$p = null;
if (is_numeric($r['post'])) {
$p = get_post($r['post']);
} else {
if (is_object($r['post'])) {
$p = $r['post'];
}
}
if (is_null($p)) {
error_log('bu_navigation_breadcrumbs - invalid post argument: ' . $r['post']);
return false;
}
}
// Grab ancestors
$ancestors = bu_navigation_gather_sections($p->ID, array('post_types' => $p->post_type));
if (!in_array($p->ID, $ancestors)) {
array_push($ancestors, $p->ID);
}
$exclude_filter_removed = false;
if ($r['include_hidden'] && has_filter('bu_navigation_filter_pages', 'bu_navigation_filter_pages_exclude')) {
$exclude_filter_removed = remove_filter('bu_navigation_filter_pages', 'bu_navigation_filter_pages_exclude');
}
$pages = bu_navigation_get_pages(array('pages' => $ancestors, 'post_types' => $p->post_type, 'post_status' => $r['include_statuses']));
if ($r['include_hidden'] && $exclude_filter_removed) {
add_filter('bu_navigation_filter_pages', 'bu_navigation_filter_pages_exclude');
}
// Container markup
$attrs = '';
if ($r['container_id']) {
$attrs .= sprintf(' id="%s"', $r['container_id']);
}
if ($r['container_class']) {
$attrs .= sprintf(' class="%s"', $r['container_class']);
}
$html = sprintf('<%s%s>%s', $r['container_tag'], $attrs, $r['prefix']);
// Build crumb markup
$crumbs = array();
if (is_array($pages) && count($pages) > 0) {
foreach ($ancestors as $page_id) {
if (!$page_id && $r['home']) {
$anchor_open = sprintf('<a href="%s" class="%s">', get_bloginfo('url'), $r['anchor_class']);
$anchor_close = '</a>';
if ($r['show_links']) {
$crumb = $anchor_open . $r['home_label'] . $anchor_close;
} else {
$crumb = $r['home_label'];
}
array_push($crumbs, $crumb);
continue;
} else {
if (!array_key_exists($page_id, $pages)) {
continue;
}
}
$current = $pages[$page_id];
if (!isset($current->navigation_label)) {
$current->navigation_label = apply_filters('the_title', $current->post_title);
}
$title = esc_attr($current->navigation_label);
$href = $current->url;
$classname = $r['anchor_class'];
$crumb = $anchor_open = $anchor_close = '';
if ($current->ID == $p->ID) {
$classname .= ' active';
}
if ($r['show_links']) {
if ($current->ID == $p->ID && !$r['anchor_current']) {
$anchor_open = sprintf('<a class="%s">', $classname);
} else {
$anchor_open = sprintf('<a href="%s" class="%s">', $href, $classname);
}
$anchor_close = '</a>';
}
$before_crumb = $after_crumb = '';
if ($r['crumb_tag']) {
$before_crumb = $current->ID == $p->ID ? sprintf('<%s class="current">', $r['crumb_tag']) : sprintf('<%s>', $r['crumb_tag']);
$after_crumb = sprintf('</%s>', $r['crumb_tag']);
}
$crumb = $before_crumb . $anchor_open . $title . $anchor_close . $after_crumb;
$crumb = apply_filters('bu_navigation_filter_crumb_html', $crumb, $current, $r);
// Only crumb if not current page or if we're crumbing the current page
if ($current->ID != $p->ID || $r['crumb_current']) {
array_push($crumbs, $crumb);
}
}
$html .= implode($r['glue'], $crumbs);
}
$html .= sprintf('%s</%s>', $r['suffix'], $r['container_tag']);
if ($r['echo']) {
echo $html;
}
return $html;
}
/**
* Execute query set up during construction
*/
protected function query()
{
// Setup filters
remove_filter('bu_navigation_filter_pages', 'bu_navigation_filter_pages_exclude');
add_filter('bu_navigation_filter_pages', array($this, 'filter_posts'));
// Gather sections
$section_args = array('direction' => 'down', 'depth' => $this->args['depth'], 'post_types' => $this->args['post_types']);
$sections = bu_navigation_gather_sections($this->args['child_of'], $section_args);
// Load pages in sections
$this->posts = bu_navigation_get_posts(array('sections' => $sections, 'post_types' => $this->args['post_types'], 'post_status' => $this->args['post_status'], 'include_links' => $this->args['include_links'], 'suppress_urls' => $this->args['suppress_urls']));
$this->post_count = count($this->posts);
// Restore filters
remove_filter('bu_navigation_filter_pages', array($this, 'filter_posts'));
add_filter('bu_navigation_filter_pages', 'bu_navigation_filter_pages_exclude');
}
