<?php /* * Copyright 2014 Florian "Bluewind" Pritz <bluewind@server-speed.net> * * Licensed under AGPLv3 * (see COPYING for full license text) * */ class Output_cache { private $output_cache = array(); /** * Combine multiple objects for the same view into one * @param data data to pass to the view * @param view view path */ public function add_merge($data, $view) { assert($view !== NULL); // combine multiple objects for the same view into one $count = count($this->output_cache); if ($count > 0 && $this->output_cache[$count - 1]["view"] === $view) { $this->output_cache[$count - 1]["data"] = array_merge_recursive($this->output_cache[$count - 1]["data"], $data); } else { $this->add($data, $view); } } /** * Add some data that will be output directly if view is NULL or passed * to the view otherweise. * * @param data data to pass to view or output * @param view view path or NULL */ public function add($data, $view = NULL) { $this->output_cache[] = array( "view" => $view, "data" => $data, ); } /** * Add a function that will be excuted when render() is called. * This function is supposed to use render_now() to output data. * * @param data_function */ public function add_function($data_function) { $this->output_cache[] = array( "view" => NULL, "data_function" => $data_function, ); } public function render_now($data, $view = NULL) { if ($view !== NULL) { echo get_instance()->load->view($view, $data, true); } else { echo $data; } } public function render() { while ($output = array_shift($this->output_cache)) { if (isset($output["data_function"])) { $output["data_function"](); } else { $data = $output["data"]; $this->render_now($data, $output["view"]); } } } }