functions.php

<?php

/**
* Register Sidebars
*/
if ( function_exists('register_sidebar') )
{
  register_sidebar(array(
  	'name' => 'Sidebar',
    'before_widget' => '<div id="%1$s" class="panel panel-default widget %2$s"><div class="panel-heading">',
    'after_widget' => '</div></div>',
    'before_title' => '<h3 class="panel-title">',
    'after_title' => '</h3></div><div class="panel-body">',
  ));
}


/**
* Register WP menus
*/
if ( function_exists( 'register_nav_menus' ) ) {
	register_nav_menus( array(
		'menu-main' => 'Main Menu',
		'menu-footer' => 'Footer Menu'
	) );
}

class Dropdown_Walker_Nav_Menu extends Walker_Nav_Menu {
  function start_lvl(&$output, $depth) {
    $indent = str_repeat("\t", $depth);
    $output .= "\n$indent<ul class=\"dropdown-menu\">\n";
  }
}

function is_tree($pid) {
	global $post;
	if(is_page()&&($post->post_parent==$pid||is_page($pid))) 
		return true;
	else 
		return false;
};


/**
* Remove div container from WP menues
*/
add_filter('wp_nav_menu_args', 'prefix_nav_menu_args');
function prefix_nav_menu_args($args = ''){
    $args['container'] = false;
    return $args;
}


/**
* Featured Images
*/
add_theme_support( 'post-thumbnails' );
set_post_thumbnail_size( 280, 210, true ); 
add_image_size('full-size', 1920, 9999);
add_image_size('large-thumbnail', 770, 9999);
add_image_size('medium-thumbnail', 470, 470, true);
add_image_size('small-thumbnail', 370, 370, true);
add_image_size('tiny-thumbnail', 270, 270, true);


/**
* Pagination
*/
function the_pagination($pages = '', $range = 2)
{  
     $showitems = ($range * 2)+1;  

     global $paged;
     if(empty($paged)) $paged = 1;

     if($pages == '')
     {
         global $wp_query;
         $pages = $wp_query->max_num_pages;
         if(!$pages)
         {
             $pages = 1;
         }
     }   

     if(1 != $pages)
     {
         echo "<ul class='pagination' role='toolbar'>";
         if($paged > 2 && $paged > $range+1 && $showitems < $pages) echo "<li><a href='".get_pagenum_link(1)."'>&laquo;</a></li>";
         if($paged > 1 && $showitems < $pages) echo "<li><a href='".get_pagenum_link($paged - 1)."'>&lsaquo;</a></li>";

         for ($i=1; $i <= $pages; $i++)
         {
             if (1 != $pages &&( !($i >= $paged+$range+1 || $i <= $paged-$range-1) || $pages <= $showitems ))
             {
                 echo ($paged == $i)? "<li class='active'><a href='#'>".$i."</a></li>":"<li><a href='".get_pagenum_link($i)."' class='inactive' >".$i."</a></li>";
             }
         }

         if ($paged < $pages && $showitems < $pages) echo "<li><a href='".get_pagenum_link($paged + 1)."'>&rsaquo;</a></li>";  
         if ($paged < $pages-1 &&  $paged+$range-1 < $pages && $showitems < $pages) echo "<li><a href='".get_pagenum_link($pages)."'>&raquo;</a></li>";
         echo "</ul>\n";
     }
}


/**
* Excerpt Play
*/
function new_excerpt_more($more) {
       global $post;
	return '...';
}
add_filter('excerpt_more', 'new_excerpt_more');

add_action( 'init', 'sunbelt_add_excerpts_to_pages' );
function sunbelt_add_excerpts_to_pages() {
     add_post_type_support( 'page', 'excerpt' );
}

function custom_excerpt_length( $length ) {
	return 38;
}
add_filter( 'excerpt_length', 'custom_excerpt_length', 999 );


/**
* Run PHP and shortcodes in widgets
*/
add_filter('widget_text','execute_php',100);
function execute_php($html){
     if(strpos($html,"<"."?php")!==false){
          ob_start();
          eval("?".">".$html);
          $html=ob_get_contents();
          ob_end_clean();
     }
     return $html;
}

add_filter('widget_text', 'do_shortcode');


/**
* Breadcrumbs
*/
function the_breadcrumbs() {
 
  $showOnHome = 0; // 1 - show breadcrumbs on the homepage, 0 - don't show
  $delimiter = '&nbsp;</li><li>'; // delimiter between crumbs
  $home = 'Home'; // text for the 'Home' link
  $showCurrent = 1; // 1 - show current post/page title in breadcrumbs, 0 - don't show
  $before = '<span class="active">'; // tag before the current crumb
  $after = '</span>'; // tag after the current crumb
 
  global $post;
  $homeLink = get_bloginfo('url');
 
  if (is_home() || is_front_page()) {
 
    if ($showOnHome == 1) echo '<ol class="breadcrumb" role="toolbar"><li><a href="' . $homeLink . '">' . $home . '</a></li></ol>';
 
  } else {
 
    echo '<ol class="breadcrumb"><li><a href="' . $homeLink . '">' . $home . '</a> ' . $delimiter . ' ';
 
    if ( is_category() ) {
      $thisCat = get_category(get_query_var('cat'), false);
      if ($thisCat->parent != 0) echo get_category_parents($thisCat->parent, TRUE, ' ' . $delimiter . ' ');
      echo $before . '' . single_cat_title('', false) . '' . $after;
 
    } elseif ( is_search() ) {
      echo $before . 'Search results for "' . get_search_query() . '"' . $after;
 
    } elseif ( is_day() ) {
      echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
      echo '<a href="' . get_month_link(get_the_time('Y'),get_the_time('m')) . '">' . get_the_time('F') . '</a> ' . $delimiter . ' ';
      echo $before . get_the_time('d') . $after;
 
    } elseif ( is_month() ) {
      echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
      echo $before . get_the_time('F') . $after;
 
    } elseif ( is_year() ) {
      echo $before . get_the_time('Y') . $after;
 
    } elseif ( is_single() && !is_attachment() ) {
      if ( get_post_type() != 'post' ) {
        $post_type = get_post_type_object(get_post_type());
        $slug = $post_type->rewrite;
        echo '<a href="' . $homeLink . '/' . $slug['slug'] . '/">' . $post_type->labels->singular_name . '</a>';
        if ($showCurrent == 1) echo ' ' . $delimiter . ' ' . $before . get_the_title() . $after;
      } else {
        $cat = get_the_category(); $cat = $cat[0];
        $cats = get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
        if ($showCurrent == 0) $cats = preg_replace("#^(.+)\s$delimiter\s$#", "$1", $cats);
        echo $cats;
        if ($showCurrent == 1) echo $before . get_the_title() . $after;
      }
 
    } elseif ( !is_single() && !is_page() && get_post_type() != 'post' && !is_404() ) {
      $post_type = get_post_type_object(get_post_type());
      echo $before . $post_type->labels->singular_name . $after;
 
    } elseif ( is_attachment() ) {
      $parent = get_post($post->post_parent);
      $cat = get_the_category($parent->ID); $cat = $cat[0];
      echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');
      echo '<a href="' . get_permalink($parent) . '">' . $parent->post_title . '</a>';
      if ($showCurrent == 1) echo ' ' . $delimiter . ' ' . $before . get_the_title() . $after;
 
    } elseif ( is_page() && !$post->post_parent ) {
      if ($showCurrent == 1) echo $before . get_the_title() . $after;
 
    } elseif ( is_page() && $post->post_parent ) {
      $parent_id  = $post->post_parent;
      $breadcrumbs = array();
      while ($parent_id) {
        $page = get_page($parent_id);
        $breadcrumbs[] = '<a href="' . get_permalink($page->ID) . '">' . get_the_title($page->ID) . '</a>';
        $parent_id  = $page->post_parent;
      }
      $breadcrumbs = array_reverse($breadcrumbs);
      for ($i = 0; $i < count($breadcrumbs); $i++) {
        echo $breadcrumbs[$i];
        if ($i != count($breadcrumbs)-1) echo ' ' . $delimiter . ' ';
      }
      if ($showCurrent == 1) echo ' ' . $delimiter . ' ' . $before . get_the_title() . $after;
 
    } elseif ( is_tag() ) {
      echo $before . 'Posts tagged "' . single_tag_title('', false) . '"' . $after;
 
    } elseif ( is_author() ) {
       global $author;
      $userdata = get_userdata($author);
      echo $before . 'Articles posted by ' . $userdata->display_name . $after;
 
    } elseif ( is_404() ) {
      echo $before . 'Error 404' . $after;
    }
 
    if ( get_query_var('paged') ) {
      if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ' (';
      echo __('Page') . ' ' . get_query_var('paged');
      if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ')';
    }
 
    echo '</li></ol>';
 
  }
}


/**
* Responsive Avatars
*/
add_filter('get_avatar','change_avatar_css');

function change_avatar_css($class) {
$class = str_replace("class='avatar", "class='img-responsive thumbnail", $class) ;
return $class;
}


/**
* Custom Login
*/
function my_login_logo() { ?>
	<style type="text/css">
		body.login div#login h1 a {
			background-image: url(<?php echo get_bloginfo( 'template_directory' ) ?>/img/login-logo.png);
			padding-bottom: 10px;
			width: 320px;
			height: 150px;
			background-size: 320px 150px;
		}
	</style>
<?php }
add_action( 'login_enqueue_scripts', 'my_login_logo' );

function login_url() {
	return get_bloginfo( 'url' );
}
add_filter( 'login_headerurl', 'login_url' );

function login_title() {
	return get_bloginfo( 'name' );
}
add_filter( 'login_headertitle', 'login_title' );


/**
* Get current post slug
*/
function the_slug() {
    $post_data = get_post($post->ID, ARRAY_A);
    $slug = $post_data['post_name'];
    return $slug; 
}

/**
* Clean wp_head
*/
remove_action ('wp_head', 'rsd_link');
remove_action( 'wp_head', 'wlwmanifest_link');
remove_action('wp_head', 'wp_generator');
remove_action( 'wp_head', 'wp_shortlink_wp_head');

?>