is_main_query() && is_singular()){
add_filter('the_content', array($this, 'add_buttons_wrap'));
}
}
/*
* Check current page is post, page, (a singular object).
* Remove filter the_content / add_buttons_wrap after fire it.
*/
public function loop_end($query){
if($query->is_main_query() && is_singular()){
remove_filter('the_content', array($this, 'add_buttons_wrap'));
}
}
/*
* Add a div with ID:aksb-buttons-wrap,
* with jquery event window.load(), a ajax request will be get sharing buttons and fill to this element.
*/
public function add_buttons_wrap($content){
if(!empty($content)){
$content .= '';
}
return $content;
}
/*
* Add a hidden field to before tag body close.
* This field need for ajax security
*/
public function add_security_key(){
wp_nonce_field('aksb_load_sharing_buttons', 'aksb-sharing-buttons-security');
}
/*
* An ajax response. Return sharing buttons to client.
*/
public function load_sharing_buttons(){
check_ajax_referer('aksb_load_sharing_buttons', 'security');
$post_id = isset($_POST['post_id']) ? (int) $_POST['post_id'] : 0;
if($post_id):
$url = get_permalink($post_id);
$title = get_the_title($post_id);
$thumb = '';
if(has_post_thumbnail($post_id)){
$image = wp_get_attachment_image_src(get_post_thumbnail_id($post_id), 'full');
if(isset($image[0]) && !empty($image[0])){
$thumb = $image[0];
}
}
?>
admin_url('admin-ajax.php'),
'post_id' => is_singular() ? get_queried_object_id() : 0
));
}
}