/**
* get_instance function
*
* Return singleton instance
*
* @return Ai1ec_Notification_Controller
**/
static function get_instance()
{
if (self::$_instance === NULL) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
* Constructor
*
* Default constructor - application initialization
**/
private function __construct($preview_mode)
{
global $wpdb, $wp_locale, $wp_scripts, $ai1ec_app_helper, $ai1ec_view_helper, $ai1ec_events_controller, $ai1ec_events_helper, $ai1ec_importer_controller, $ai1ec_exporter_controller, $ai1ec_settings_controller, $ai1ec_settings, $ai1ec_themes_controller, $ai1ec_calendar_controller, $ai1ec_calendar_helper, $ai1ec_importer_plugin_helper, $ai1ec_requirejs_controller, $ai1ec_rss_feed, $ai1ec_duplicate_controller, $ai1ec_events_list_helper, $ai1ec_oauth_controller;
$aie1c_deferred_rendering_helper = Ai1ec_Deferred_Rendering_Helper::get_instance();
$ai1ec_duplicate_controller->set_admin_notice_helper($aie1c_deferred_rendering_helper);
$css_controller = Ai1ec_Less_Factory::create_css_controller_instance();
$notification_controller = Ai1ec_Notification_Controller::get_instance();
// register_activation_hook
register_activation_hook(AI1EC_PLUGIN_NAME . '/' . AI1EC_PLUGIN_NAME . '.php', array(&$this, 'activation_hook'));
// Configure MySQL to operate in GMT time
$wpdb->query("SET time_zone = '+0:00'");
// Load plugin text domain
$this->load_textdomain();
// Install/update database schema as necessary
$this->install_schema();
// Enable stats collection
$this->install_n_cron();
// Enable plugins for importing events from external sources
$this->install_plugins();
$lessphp_controller = Ai1ec_Less_Factory::create_lessphp_controller();
// Update less variables in the db
if (isset($_POST[Ai1ec_Less_Variables_Editing_Page::FORM_SUBMIT_NAME]) || isset($_POST[Ai1ec_Less_Variables_Editing_Page::FORM_SUBMIT_RESET_THEME])) {
$css_controller->handle_less_variables_page_form_post();
}
// Adds the image field only if we are on event categories page
$this->add_image_field_to_event_categories();
// Enable checking for cron updates
$this->install_u_cron();
// Continue loading hooks only if themes are installed. Otherwise display a
// notification on the backend with instructions how to install themes.
if (!$ai1ec_themes_controller->are_themes_available()) {
// Enables the hidden themes installer page
add_action('admin_menu', array(&$ai1ec_themes_controller, 'register_theme_installer'), 10);
// Redirects the user to install theme page
add_action('admin_menu', array(&$this, 'check_themes'), 2);
return;
}
if (false === $preview_mode && !$ai1ec_themes_controller->are_themes_outdated()) {
// Create the less variables if they are not set, but only if we are not in preview mode.
// this is because there is an edge case when you activate a theme and then you preview another
// the variables of the other theme are set.
$lessphp_controller->initialize_less_variables_if_not_set(Ai1ec_Less_Factory::create_less_file_instance(Ai1ec_Less_File::USER_VARIABLES_FILE));
}
// Check for legacy format themes when viewing WP dashboard; do not perform
// the check when switching themes or if current theme files are outdated.
if (is_admin() && !isset($_GET['ai1ec_template']) && !$ai1ec_themes_controller->are_themes_outdated()) {
$ai1ec_themes_controller->generate_notice_if_legacy_theme_installed();
}
// Install and configure events regeneration schedule
$ai1ec_events_helper->register_regeneration_hook();
// ===========
// = ACTIONS =
// ===========
// Very early on in WP bootstrap, prepare to do any requested theme preview.
add_action('setup_theme', array($ai1ec_themes_controller, 'preview_theme'));
// Calendar theme initialization
add_action('after_setup_theme', array($ai1ec_themes_controller, 'setup_theme'));
// Create custom post type
add_action('init', array($ai1ec_app_helper, 'create_post_type'));
// Handle ICS export requests
add_action('init', array($this, 'parse_standalone_request'));
// Regenerate events on timezone change
add_action('update_option_timezone_string', array($ai1ec_events_helper, 'regenerate_events_cache_on_tz'), 10, 2);
// RSS Feed
add_action('init', array($ai1ec_rss_feed, 'add_feed'));
// Add the link for CSS generation
if (!is_admin()) {
add_action('init', array($css_controller, 'add_link_to_html_for_frontend'), 1);
}
// Load plugin text domain
add_action('init', array($this, 'load_textdomain'));
// Load back-end javascript files
add_action('init', array($ai1ec_requirejs_controller, 'load_admin_js'));
// Initialize router
add_action('init', array($this, 'initialize_router'), PHP_INT_MAX - 1);
add_action('cron_schedules', array(Ai1ec_Scheduling_Utility::instance(), 'cron_schedules'));
// Load the scripts for the backend for wordpress version < 3.3
add_action('admin_footer', array($ai1ec_requirejs_controller, 'print_admin_script_footer_for_wordpress_32'));
// Load the scripts for the frontend for wordpress version < 3.3
add_action('wp_footer', array($ai1ec_requirejs_controller, 'print_frontend_script_footer_for_wordpress_32'));
// Set an action to load front-end javascript
add_action('ai1ec_load_frontend_js', array($ai1ec_requirejs_controller, 'load_frontend_js'), 10, 2);
// Check if themes are installed
add_action('init', array($ai1ec_themes_controller, 'check_themes'));
// Register The Event Calendar importer
add_action('admin_init', array($ai1ec_importer_controller, 'register_importer'));
// Install admin menu items.
add_action('admin_menu', array($this, 'admin_menu'), 9);
// Enable theme updater page if last version of core themes is older than
// current version.
if ($ai1ec_themes_controller->are_themes_outdated()) {
add_action('admin_menu', array($ai1ec_themes_controller, 'register_theme_updater'), 10);
}
// Add Event counts to dashboard.
add_action('right_now_content_table_end', array($ai1ec_app_helper, 'right_now_content_table_end'));
// add content for our custom columns
add_action('manage_ai1ec_event_posts_custom_column', array($ai1ec_app_helper, 'custom_columns'), 10, 2);
// Add filtering dropdowns for event categories and tags
add_action('restrict_manage_posts', array($ai1ec_app_helper, 'taxonomy_filter_restrict_manage_posts'));
// Trigger display of page in front-end depending on request
add_action('template_redirect', array($this, 'route_request'));
// Add meta boxes to event creation/edit form.
add_action('add_meta_boxes', array($ai1ec_app_helper, 'add_meta_boxes'));
add_action('show_user_profile', array($ai1ec_app_helper, 'add_profile_boxes'));
add_action('personal_options_update', array($ai1ec_app_helper, 'save_user_profile'), 10, 1);
add_action('post_submitbox_misc_actions', array($ai1ec_oauth_controller, 'post_meta_box'), 10, 2);
// Save event data when post is saved
add_action('save_post', array($ai1ec_events_controller, 'save_post'), 10, 2);
add_action('save_post', array($ai1ec_events_list_helper, 'handle_post_save_purge'), 10, 2);
// Delete event data when post is deleted
add_action('delete_post', array($ai1ec_events_controller, 'delete_post'));
add_action('trashed_post', array($ai1ec_events_controller, 'trashed_post'));
add_action('untrashed_post', array($ai1ec_events_controller, 'untrashed_post'));
add_action('trashed_post', array($ai1ec_events_list_helper, 'purge'));
add_action('delete_post', array($ai1ec_events_list_helper, 'purge'));
add_action('delete_term', array($ai1ec_events_list_helper, 'purge'));
add_action('delete_term', array($ai1ec_settings, 'term_deletion'), 10, 3);
// Notification cron job hook
add_action('ai1ec_n_cron', array($ai1ec_exporter_controller, 'n_cron'));
// Updates cron job hook
add_action('ai1ec_u_cron', array($ai1ec_settings_controller, 'u_cron'));
// Category colors
add_action('events_categories_add_form_fields', array($ai1ec_events_controller, 'events_categories_add_form_fields'));
add_action('events_categories_edit_form_fields', array($ai1ec_events_controller, 'events_categories_edit_form_fields'));
add_action('created_events_categories', array($ai1ec_events_controller, 'created_events_categories'));
add_action('edited_events_categories', array($ai1ec_events_controller, 'edited_events_categories'));
add_action('admin_notices', array($ai1ec_app_helper, 'admin_notices'));
add_action('created_events_tags', array($ai1ec_events_list_helper, 'purge'));
add_action('edited_events_tags', array($ai1ec_events_list_helper, 'purge'));
// specific action available to network admin, while in networked
// installation, or site admin otherwise
$network_action = 'admin_notices';
if (is_multisite()) {
$network_action = 'network_admin_notices';
}
add_action($network_action, array($ai1ec_app_helper, 'network_admin_notices'));
// The new object that handles notices.
add_action(Ai1ec_Deferred_Rendering_Helper::ADMIN_MESSAGES_ACTION, array($aie1c_deferred_rendering_helper, 'render'));
// Render modals in the footer
add_action(Ai1ec_Deferred_Rendering_Helper::BOOTSTRAP_MODALS_ACTION, array($aie1c_deferred_rendering_helper, 'render'));
// Scripts/styles for settings and widget admin screens.
add_action('admin_enqueue_scripts', array($ai1ec_app_helper, 'admin_enqueue_scripts'));
// Widgets
add_action('widgets_init', create_function('', "return register_widget( 'Ai1ec_Agenda_Widget' );"));
// Modify WP admin bar
add_action('admin_bar_menu', array($ai1ec_app_helper, 'modify_admin_bar'));
// ===========
// = FILTERS =
// ===========
if (is_admin() && 'admin-ajax.php' !== basename($_SERVER['SCRIPT_NAME'])) {
add_filter('the_title', array($ai1ec_view_helper, 'the_title_admin'), 1, 2);
}
add_filter('post_row_actions', array($ai1ec_view_helper, 'post_row_actions'), 10, 2);
add_filter('posts_orderby', array($ai1ec_app_helper, 'orderby'), 10, 2);
// add custom column names and change existing columns
add_filter('manage_ai1ec_event_posts_columns', array($ai1ec_app_helper, 'change_columns'));
// filter the post lists by custom filters
add_filter('parse_query', array($ai1ec_app_helper, 'taxonomy_filter_post_type_request'));
// Override excerpt filters for proper event display in excerpt form
add_filter('get_the_excerpt', array($ai1ec_events_controller, 'event_excerpt'), 11);
add_filter('the_excerpt', array($ai1ec_events_controller, 'event_excerpt_noautop'), 11);
remove_filter('the_excerpt', 'wpautop', 10);
// Update event post update messages
add_filter('post_updated_messages', array($ai1ec_events_controller, 'post_updated_messages'));
// Sort the custom columns
add_filter('manage_edit-ai1ec_event_sortable_columns', array($ai1ec_app_helper, 'sortable_columns'));
add_filter('map_meta_cap', array($ai1ec_app_helper, 'map_meta_cap'), 10, 4);
// Inject event categories, only in front-end, depending on setting
if ($ai1ec_settings->inject_categories && !is_admin()) {
add_filter('get_terms', array($ai1ec_app_helper, 'inject_categories'), 10, 3);
add_filter('wp_list_categories', array($ai1ec_app_helper, 'selected_category_link'), 10, 2);
}
// Rewrite event category URLs to point to calendar page.
add_filter('term_link', array($ai1ec_app_helper, 'calendar_term_link'), 10, 3);
// Add a link to settings page on the plugin list page.
add_filter('plugin_action_links_' . AI1EC_PLUGIN_BASENAME, array($ai1ec_settings_controller, 'plugin_action_links'));
// Add a link to donate page on plugin list page.
add_filter('plugin_row_meta', array($ai1ec_settings_controller, 'plugin_row_meta'), 10, 2);
add_filter('post_type_link', array($ai1ec_events_helper, 'post_type_link'), 10, 3);
add_filter('ai1ec_template_root_path', array($ai1ec_themes_controller, 'template_root_path'));
add_filter('ai1ec_template_root_url', array($ai1ec_themes_controller, 'template_root_url'));
add_filter('option_ai1ec_update_available', array($this, 'limit_update_notice'));
add_filter('manage_edit-events_categories_columns', array($this, 'manage_event_categories_columns'));
add_filter('manage_events_categories_custom_column', array($this, 'manage_events_categories_custom_column'), 10, 3);
// ========
// = AJAX =
// ========
// RRule to Text
add_action('wp_ajax_ai1ec_rrule_to_text', array($ai1ec_events_helper, 'convert_rrule_to_text'));
// Display Repeat Box
add_action('wp_ajax_ai1ec_get_repeat_box', array($ai1ec_events_helper, 'get_repeat_box'));
add_action('wp_ajax_ai1ec_get_date_picker_box', array($ai1ec_events_helper, 'get_date_picker_box'));
// Disable notifications
add_action('wp_ajax_ai1ec_disable_notification', array($ai1ec_settings_controller, 'disable_notification'));
add_action('wp_ajax_ai1ec_disable_intro_video', array($ai1ec_settings_controller, 'disable_intro_video'));
// subscribe to event
add_action('wp_ajax_nopriv_ai1ec_subscribe_to_event', array($notification_controller, 'subscribe_to_event'));
add_action('wp_ajax_ai1ec_subscribe_to_event', array($notification_controller, 'subscribe_to_event'));
// Front-end event creation
add_action('wp_ajax_ai1ec_front_end_create_event_form', array($ai1ec_events_helper, 'get_front_end_create_event_form'));
add_action('wp_ajax_ai1ec_front_end_submit_event', array($ai1ec_events_helper, 'submit_front_end_create_event_form'));
if ($ai1ec_settings->allow_anonymous_submissions) {
add_action('wp_ajax_nopriv_ai1ec_front_end_create_event_form', array($ai1ec_events_helper, 'get_front_end_create_event_form'));
add_action('wp_ajax_nopriv_ai1ec_front_end_submit_event', array($ai1ec_events_helper, 'submit_front_end_create_event_form'));
}
// remove entries from DB cache, if any
add_action('ai1ec_upgrade', array($ai1ec_calendar_controller, 'clear_db_cache'));
// Make checks on `pre_http_request`, to filter HTTP requests
add_filter('pre_http_request', array(Ai1ec_Http_Utility::instance(), 'pre_http_request'), 10, 3);
// set-up Twitter notifications cron
add_action('ai1ec_send_twitter_messages', array($notification_controller, 'send_twitter_messages'));
Ai1ec_Scheduling_Utility::instance()->reschedule('ai1ec_send_twitter_messages', '1h');
// Invalid license status warning.
add_action('wp_ajax_ai1ec_set_license_warning', array($ai1ec_settings_controller, 'set_license_warning'));
// ==============
// = Shortcodes =
// ==============
add_shortcode('ai1ec', array($ai1ec_events_helper, 'shortcode'));
// ===============
// = Ai1EC hooks =
// ===============
add_action('ai1ec_purge_events_cache', array($ai1ec_events_list_helper, 'purge'));
$this->upgrade_actions();
}
/**
* Check if e-mail subscription button should be displayed
*
* @param Ai1ec_Event $event Event being checked
*
* @return bool True to display e-mail subscription button
*/
protected function _show_email_subscribe(Ai1ec_Event $event)
{
global $ai1ec_settings;
if (!$ai1ec_settings->enable_user_event_notifications) {
return false;
}
if (isset($_COOKIE['ai1ec_event_subscribed']) && in_array($event->instance_id, (array) json_decode($_COOKIE['ai1ec_event_subscribed']))) {
return false;
}
$notification_controller = Ai1ec_Notification_Controller::get_instance();
if ($notification_controller->check_if_notification_should_be_sent_for_event($event)) {
return false;
}
return true;
}
