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<?php
/*
* Copyright 2014,2016 Florian "Bluewind" Pritz <bluewind@server-speed.net>
*
* Licensed under AGPLv3
* (see COPYING for full license text)
*
*/
namespace libraries;
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"]);
}
}
}
}
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