__('Display a list or calendar grid of events from one or more Google Calendar feeds you have added', GCE_TEXT_DOMAIN)));
}
function widget($args, $instance){
extract($args);
//Output before widget stuff
echo $before_widget;
//Get saved feed options
$options = get_option(GCE_OPTIONS_NAME);
//Check whether any feeds have been added yet
if(is_array($options) && !empty($options)){
//Output title stuff
$title = empty($instance['title']) ? '' : apply_filters('widget_title', $instance['title']);
if(!empty($title)) echo $before_title . $title . $after_title;
//Break comma delimited list of feed ids into array
$feed_ids = explode(',', str_replace(' ', '', $instance['id']));
//Check each id is an integer, if not, remove it from the array
foreach($feed_ids as $key => $feed_id){
if(absint($feed_id) == 0) unset($feed_ids[$key]);
}
$no_feeds_exist = true;
//If at least one of the feed ids entered exists, set no_feeds_exist to false
foreach($feed_ids as $feed_id){
if(isset($options[$feed_id])) $no_feeds_exist = false;
}
//Check that at least one valid feed id has been entered
if(count((array)$feed_ids) == 0 || $no_feeds_exist){
_e('No valid Feed IDs have been entered for this widget. Please check that you have entered the IDs correctly and that the Feeds have not been deleted.', GCE_TEXT_DOMAIN);
}else{
//Turns feed_ids back into string or feed ids delimited by '-' ('1-2-3-4' for example)
$feed_ids = implode('-', $feed_ids);
$title_text = $instance['display_title'] ? $instance['display_title_text'] : null;
$max_events = $instance['max_events'];
//Output correct widget content based on display type chosen
switch($instance['display_type']){
case 'grid':
echo '
';
//Output main widget content as grid (no AJAX)
gce_widget_content_grid($feed_ids, $title_text, $max_events, $args['widget_id'] . '-container');
echo '
';
break;
case 'ajax':
echo '
';
//Output main widget content as grid (with AJAX)
gce_widget_content_grid($feed_ids, $title_text, $max_events, $args['widget_id'] . '-container', true);
echo '
';
break;
case 'list':
echo '
';
//Output main widget content as list
gce_widget_content_list($feed_ids, $title_text, $max_events);
echo '
';
break;
case 'list-grouped':
echo '
';
//Output main widget content as a grouped list
gce_widget_content_list($feed_ids, $title_text, $max_events, true);
echo '
';
break;
}
}
}else{
_e('No feeds have been added yet. You can add a feed in the Google Calendar Events settings.', GCE_TEXT_DOMAIN);
}
//Output after widget stuff
echo $after_widget;
}
function update($new_instance, $old_instance){
$instance = $old_instance;
$instance['title'] = esc_html($new_instance['title']);
$instance['id'] = esc_html($new_instance['id']);
$instance['display_type'] = esc_html($new_instance['display_type']);
$instance['max_events'] = absint($new_instance['max_events']);
$instance['display_title'] = $new_instance['display_title'] == 'on' ? true : false;
$instance['display_title_text'] = wp_filter_kses($new_instance['display_title_text']);
return $instance;
}
function form($instance){
//Get saved feed options
$options = get_option(GCE_OPTIONS_NAME);
if(empty($options)){
//If no feeds or groups ?>
value="on" />
get_errors()) == 0){
//Add AJAX script if required
if($ajaxified) ?>get_grid($year, $month, $ajaxified);
}else{
printf(__('The following feeds were not parsed successfully: %s. Please check that the feed URLs are correct and that the feeds have public sharing enabled.'), implode(', ', $grid->get_errors()));
}
}
function gce_widget_content_list($feed_ids, $title_text, $max_events, $grouped = false){
//Create new GCE_Parser object, passing array of feed id(s)
$list = new GCE_Parser(explode('-', $feed_ids), $title_text, $max_events);
//If the feed(s) parsed ok, output the list markup, otherwise output an error message
if(count($list->get_errors()) == 0){
echo $list->get_list($grouped);
}else{
printf(__('The following feeds were not parsed successfully: %s. Please check that the feed URLs are correct and that the feeds have public sharing enabled.'), implode(', ', $list->get_errors()));
}
}
?>