(function($) {
  Drupal.behaviors.custom_search = {
    attach: function(context) {

      if (!Drupal.settings.custom_search.solr) {
        // Check if the search box is not empty on submit
        $('form.search-form', context).submit(function(){
          var $this = $(this);
          var box = $this.find('input.custom-search-box');
          if (box.val() != undefined && box.val() == '') {
            $this.find('input.custom-search-box').addClass('error');
            return false;
          }
          // If basic search is hidden, copy or value to the keys
          if ($this.find('#edit-keys').parents('div.element-invisible').attr('class') == 'element-invisible') {
            $this.find('#edit-keys').val($this.find('#edit-or').val());
            $this.find('#edit-or').val('');
          }
          return true;
        });
      }

      // Search from target
      $('form.search-form').attr('target', Drupal.settings.custom_search.form_target);

      // Displays Popup.
      $('form.search-form input.custom-search-box', context).bind('click focus', function(e){
        var $parentForm = $(this).parents('form');
        // check if there's something in the popup and displays it
        var popup = $parentForm.find('fieldset.custom_search-popup');
        if (popup.find('input,select').length && !popup.hasClass('opened')) {
          popup.fadeIn().addClass('opened');
        }
        e.stopPropagation();
      });
      $(document).bind('click focus', function(){
        $('fieldset.custom_search-popup').hide().removeClass('opened');
      });

      // Handle checkboxes
      $('.custom-search-selector input:checkbox', context).each(function(){
        var el = $(this);
        if (el.val() == 'c-all') {
          el.change(function(){
            $(this).parents('.custom-search-selector').find('input:checkbox[value!=c-all]').attr('checked', false);
          });
        }
        else {
          if (el.val().substr(0,2) == 'c-') {
            el.change(function(){
              $('.custom-search-selector input:checkbox').each(function(){
                if ($(this).val().substr(0,2) == 'o-') {
                  $(this).attr('checked', false);
                }
              });
              $(this).parents('.custom-search-selector').find('input:checkbox[value=c-all]').attr('checked', false);
            });
          } else {
            el.change(function(){
              $(this).parents('.custom-search-selector').find('input:checkbox[value!=' + el.val() + ']').attr('checked', false);
            });
          }
        }
      });

      // Handle popup.
      var popup = $('fieldset.custom_search-popup:not(.custom_search-processed)', context).addClass("custom_search-processed");
      popup.click(function(e){
        e.stopPropagation();
      })
      popup.append('<a class="custom_search-popup-close" href="#">' + Drupal.t('Close') + '</a>');
      $('a.custom_search-popup-close').click(function(e){
        $('fieldset.custom_search-popup.opened').hide().removeClass('opened');
        e.preventDefault();
      });

    }
  }
})(jQuery);