carousel_id = 'appw-carousel-' . self::$instance_id; $this->carousel_inner_items = ''; $this->number_of_inner_items = 0; $this->carousel_indicators = ''; $this->slide_to_index = 0; self::$instance_id++; } public function add_post_markup( $post_markup ) { $this->append_post_markup_to_inner_items( $post_markup ); $this->append_to_carousel_indicators(); $this->number_of_inner_items++; } private function append_post_markup_to_inner_items( $post_markup ) { $is_active = (0 == $this->slide_to_index ) ? 'active' : ''; $this->carousel_inner_items .= "

{$post_markup}

\n"; } private function append_to_carousel_indicators(){ $is_active = (0 == $this->slide_to_index ) ? 'active' : ''; $this->carousel_indicators .= "

"; $this->slide_to_index++; } private function maybe_get_controls() { if ( $this->number_of_inner_items > 1 ) { return " "; } } private function maybe_get_indicators() { if ( $this->number_of_inner_items > 1 ) { return "

{$this->carousel_indicators} \n"; } } public function get() { $controls = $this->maybe_get_controls(); $indicators = $this->maybe_get_indicators(); return "

{$indicators}

{$this->carousel_inner_items}

{$controls}

\n"; } } /* end class APP_Carousel */