/**
  * Add an 'empty' pane placeholder above all the normal panes.
  *
  * @param $region_id
  * @param $panes
  */
 function render_region($region_id, $panes)
 {
     // Generate this region's 'empty' placeholder pane from the IPE plugin.
     $empty_ph = theme('panels_ipe_placeholder_pane', array('region_id' => $region_id, 'region_title' => $this->plugins['layout']['regions'][$region_id]));
     // Wrap the placeholder in some guaranteed markup.
     $control = '<div class="panels-ipe-placeholder panels-ipe-on panels-ipe-portlet-marker panels-ipe-portlet-static">' . $empty_ph . theme('panels_ipe_add_pane_button', array('region_id' => $region_id, 'display' => $this->display, 'renderer' => $this)) . "</div>";
     $output = parent::render_region($region_id, $panes);
     $output = theme('panels_ipe_region_wrapper', array('output' => $output, 'region_id' => $region_id, 'display' => $this->display, 'controls' => $control, 'renderer' => $this));
     $classes = 'panels-ipe-region';
     return "<div id='panels-ipe-regionid-{$region_id}' class='panels-ipe-region'>{$output}</div>";
 }
 /**
  * Add an 'empty' pane placeholder above all the normal panes.
  *
  * @param $region_id
  * @param $panes
  */
 function render_region($region_id, $panes)
 {
     // Generate this region's 'empty' placeholder pane from the IPE plugin.
     $empty_ph = theme('panels_ipe_placeholder_pane', $region_id, $this->plugins['layout']['panels'][$region_id]);
     // Wrap the placeholder in some guaranteed markup.
     $panes['empty_placeholder'] = '<div class="panels-ipe-placeholder panels-ipe-on panels-ipe-portlet-marker panels-ipe-portlet-static">' . $empty_ph . "</div>";
     // Generate this region's add new pane button. FIXME waaaaay too hardcoded
     $panes['add_button'] = theme('panels_ipe_add_pane_button', $region_id, $this->display, $this);
     $output = parent::render_region($region_id, $panes);
     $output = theme('panels_ipe_region_wrapper', $output, $region_id, $this->display);
     $classes = 'panels-ipe-region';
     ctools_include('cleanstring');
     $region_id = ctools_cleanstring($region_id);
     return "<div id='panels-ipe-regionid-{$region_id}' class='panels-ipe-region'>{$output}</div>";
 }