lib/sidebar.php


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<?php
/**
 * Determines whether or not to display the sidebar based on an array of conditional tags or page templates.
 *
 * If any of the is_* conditional tags or is_page_template(template_file) checks return true, the sidebar will NOT be displayed.
 *
 * @link http://roots.io/the-roots-sidebar/
 *
 * @param array list of conditional tags (http://codex.wordpress.org/Conditional_Tags)
 * @param array list of page templates. These will be checked via is_page_template()
 *
 * @return boolean True will display the sidebar, False will not
 */
class Roots_Sidebar {
  private $conditionals;
  private $templates;

  public $display = true;

  function __construct($conditionals = array(), $templates = array()) {
    $this->conditionals = $conditionals;
    $this->templates    = $templates;

    $conditionals = array_map(array($this, 'check_conditional_tag'), $this->conditionals);
    $templates    = array_map(array($this, 'check_page_template'), $this->templates);

    if (in_array(true, $conditionals) || in_array(true, $templates)) {
      $this->display = false;
    }
  }

  private function check_conditional_tag($conditional_tag) {
    if (is_array($conditional_tag)) {
      return $conditional_tag[0]($conditional_tag[1]);
    } else {
      return $conditional_tag();
    }
  }

  private function check_page_template($page_template) {
    return is_page_template($page_template);
  }
}