_is_widget_on_page = false;
$this->_is_head_script_loaded = false;
$this->plugin_name = plugin_basename(__FILE__);
$this->plugin_directory = plugin_dir_path(__FILE__);
$this->plugin_url = trailingslashit(WP_PLUGIN_URL . '/' . dirname(plugin_basename(__FILE__)));
$this->settings = $wpdb->get_row("select * from ".$wpdb->prefix."_taboola_settings limit 1");
$this->tbl_taboola_settings = $wpdb->prefix . '_taboola_settings';
//activation function
register_activation_hook($this->plugin_name, array(&$this, 'activate'));
// Enable sidebar widgets
if($this->settings != NULL && !empty($this->settings->publisher_id)){
//register Taboola widget
add_action('widgets_init',
create_function('', 'return register_widget("WP_Widget_Taboola");')
);
}
if (is_admin()) {
//add menu for plugin
add_action( 'admin_menu', array(&$this, 'admin_generate_menu') );
add_filter('plugin_action_links', array(&$this, 'plugin_action_links'), 10, 2 );
} else {
if($this->settings != NULL){
add_action('wp_head', array(&$this, 'taboola_header_loader_inject'));
add_action('wp_footer', array(&$this, 'taboola_footer_loader_js'));
add_filter('the_content', array(&$this, 'load_taboola_content'));
}
}
}
function plugin_action_links($links, $file) {
static $this_plugin;
if (!$this_plugin) {
$this_plugin = plugin_basename(__FILE__);
}
if ($file == $this_plugin) {
$settings_link = 'Settings';
array_unshift($links, $settings_link);
}
return $links;
}
private function should_show_content_widget(){
$retVal = ((trim($this->settings->publisher_id) != '') && is_single() && $this->settings->first_bc_enabled && trim($this->settings->first_bc_widget_id) != '');
return $retVal;
}
private function should_show_sidebar_widget(){
$retVal = ((trim($this->settings->publisher_id) != '') && is_active_widget( false, false, TABOOLA_WIDGET_BASE_ID, true ));
return $retVal;
}
// Determine if a taboola widget should be added somewhere on the current page (content or sidebar)
function is_widget_on_page(){
return $this->should_show_content_widget() || $this->should_show_sidebar_widget();
}
function get_page_type(){
$page_type='article';
if (is_front_page()){
$page_type='home';
}else if (is_category() || is_archive() || is_search()){
$page_type='category';
}
return $page_type;
}
// return the head loader script
function taboola_header_loader_js() {
$head_string = "";
// Only adding Script1 if a widget is going to be placed on the page.
if ($this->is_widget_on_page()){
$script1_content = str_replace('{{PUBLISHER_ID}}', $this->settings->publisher_id, file_get_contents($this->plugin_directory.'js/script1.js'));
$script1_content = str_replace('{{PAGE_TYPE}}',$this->get_page_type(),$script1_content);
$head_string = '';
}
return $head_string;
}
// This function is used for the hook action, injects the header content to the tag.
function taboola_header_loader_inject(){
echo $this->taboola_header_loader_js();
}
function taboola_footer_loader_js() {
// Only adding Script1 if a widget is going to be placed on the page.
if ( $this->is_widget_on_page() ){
$script3_content = file_get_contents($this->plugin_directory.'js/script3.js');
echo '';
}
}
function load_taboola_content($content)
{
if ($this->should_show_content_widget()){
$script2_content = str_replace('{{WIDGET_ID}}', $this->settings->first_bc_widget_id, file_get_contents($this->plugin_directory.'js/script2.js'));
$script2_content = str_replace('{{CONTAINER}}', 'taboola-below-article', $script2_content);
$script2_content = str_replace('{{PLACEMENT}}', 'below-article', $script2_content);
$content = $content .
'' .
'';
// Adding the 2nd widget if needed
if($this->settings->second_bc_enabled && trim($this->settings->second_bc_widget_id) != ''){
$script2_content = str_replace('{{WIDGET_ID}}', $this->settings->second_bc_widget_id, file_get_contents($this->plugin_directory.'js/script2.js'));
$script2_content = str_replace('{{CONTAINER}}', 'taboola-below-article-second', $script2_content);
$script2_content = str_replace('{{PLACEMENT}}', 'below-article-2nd', $script2_content);
$content = $content .
'' .
'';
}
}
return $content;
}
function admin_generate_menu(){
global $current_user;
add_menu_page('Taboola', 'Taboola', 'manage_options', 'taboola_widget', array(&$this, 'admin_taboola_settings'), $this->plugin_url.'img/taboola_icon.png', 110);
}
function admin_taboola_settings(){
global $wpdb;
$settings = $wpdb->get_row("select * from ".$wpdb->prefix."_taboola_settings limit 1");
$taboola_errors = array();
if($_SERVER['REQUEST_METHOD'] == 'POST'){
if(trim($_POST['publisher_id']) == ''){
$taboola_errors[] = "Please add a 'Publisher ID' in order to apply changes to your widgets";
}
if(($_POST['first_bc_enabled'] == 'on' && trim($_POST['first_bc_widget_id']) == '') ||
($_POST['second_bc_enabled'] == 'on' && trim($_POST['second_bc_widget_id']) == '')
){
$taboola_errors[] = "Please add a 'Widget ID' in order to apply changes to your widgets";
}
if(count($taboola_errors) == 0){
$data = array(
"publisher_id" => trim($_POST['publisher_id']),
"first_bc_enabled" => $_POST['first_bc_enabled'] == 'on' ? true : false,
"first_bc_widget_id" => trim($_POST['first_bc_widget_id']),
"second_bc_enabled" => $_POST['second_bc_enabled'] == 'on' ? true : false,
"second_bc_widget_id" => trim($_POST['second_bc_widget_id']),
);
//var_dump($settings);
if($settings == NULL){
$wpdb->insert($this->tbl_taboola_settings, $data, null, null);
} else {
$wpdb->update($this->tbl_taboola_settings, $data, array('id' => $settings->id));
}
}
$settings = $wpdb->get_row("select * from ".$wpdb->prefix."_taboola_settings limit 1");
}
include_once('settings.php');
}
function activate(){
global $wpdb;
require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
$settings_table = $this->tbl_taboola_settings;
//check mysql version
if (version_compare(mysql_get_server_info(), '4.1.0', '>=')) {
if (!empty($wpdb->charset))
$charset_collate = "DEFAULT CHARACTER SET $wpdb->charset";
if (!empty($wpdb->collate))
$charset_collate .= " COLLATE $wpdb->collate";
}
//settings table structure
$sql_table_settings = "
CREATE TABLE `" . $wpdb->prefix . "_taboola_settings` (
`id` INT NOT NULL AUTO_INCREMENT ,
`publisher_id` VARCHAR(255) DEFAULT NULL,
`first_bc_enabled` TINYINT(1) NOT NULL DEFAULT FALSE,
`first_bc_widget_id` VARCHAR(255) DEFAULT NULL,
`first_bc_custom_css` TEXT DEFAULT NULL,
`second_bc_enabled` TINYINT(1) NOT NULL DEFAULT FALSE,
`second_bc_widget_id` VARCHAR(255) DEFAULT NULL,
`second_bc_custom_css` TEXT DEFAULT NULL,
PRIMARY KEY (`id`)
)" . $charset_collate . ";";
//check if table exists
if ($wpdb->get_var("show tables like '" . $settings_table . "'") != $settings_table) {
dbDelta($sql_table_settings);
}
}
}
}
global $taboolaWP;
$taboolaWP = new TaboolaWP();