public function get_navigation_bar_additions()
{
$custom_handlers = CRM_CalendarCommon::get_event_handlers();
if (empty($custom_handlers)) {
return '';
}
$form = $this->init_module('Libs/QuickForm');
$elements_name = array();
$default = array();
foreach ($custom_handlers as $k => $v) {
$form->addElement('checkbox', 'events_handlers__' . $k, $v, null, array('onclick' => 'calendar_event_handlers_changed=1;'));
$elements_name[$k] = 'events_handlers__' . $k;
$default[] = $k;
}
$form->addElement('hidden', 'event_handlers_changed', '', array('id' => 'event_handlers_changed'));
eval_js('calendar_event_handlers_changed=0;');
eval_js('hide_calendar_event_handlers_popup = function() {' . 'if(var_hide_calendar_event_handlers_popup==1){' . '$("calendar_event_handlers_popup").style.display="none";' . '$("calendar_event_handlers_trigger").innerHTML=calendar_event_handlers_message_default;' . 'if(calendar_event_handlers_changed==1){' . $form->get_submit_form_js() . '$("calendar_event_handlers_trigger").innerHTML=calendar_event_handlers_message_processing;' . '}' . '}' . '}');
eval_js('show_calendar_event_handlers_popup = function() {' . '$("calendar_event_handlers_popup").style.display="";' . '$("calendar_event_handlers_trigger").innerHTML=calendar_event_handlers_message_confirm;' . '}');
$selected = $this->get_module_variable('events_handlers', $default);
if ($form->validate()) {
$vals = $form->exportValues();
$selected = array();
foreach ($elements_name as $k => $e) {
if (isset($vals[$e]) && $vals[$e]) {
$selected[] = $k;
}
}
$this->set_module_variable('events_handlers', $selected);
}
CRM_Calendar_EventCommon::$events_handlers = $selected;
foreach ($selected as $k => $e) {
if (isset($elements_name[$e])) {
$form->setDefaults(array($elements_name[$e] => true));
}
}
$label = 'Filter: Error';
$select_count = count($selected);
if ($select_count == count($custom_handlers)) {
$label = __('All');
} else {
$label = __('Selection (%d)', array($select_count));
}
if ($select_count == 1) {
$label = $custom_handlers[reset($selected)];
}
if ($select_count == 0) {
$label = __('None');
}
$theme = $this->init_module('Base/Theme');
$theme->assign('elements_name', $elements_name);
$theme->assign('label', $label);
eval_js('calendar_event_handlers_message_default="' . $label . '";');
eval_js('calendar_event_handlers_message_processing="' . __('Processing...') . '";');
eval_js('calendar_event_handlers_message_confirm="' . __('Save selection') . '";');
$form->assign_theme('form', $theme);
ob_start();
$theme->display('custom_event_handlers_form');
$handlers_form = ob_get_clean();
return $handlers_form;
}
