88 lines
2.3 KiB
PHP
88 lines
2.3 KiB
PHP
|
<?php
|
||
|
|
namespace Rails\ActionView;
|
||
|
|
|
||
|
|
use Closure;
|
||
|
|
use ReflectionClass;
|
||
|
|
use Rails;
|
||
|
|
|
||
|
|
abstract class ActionView
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* Stores the contents for.
|
||
|
|
* Static because contents_for are available
|
||
|
|
* for everything.
|
||
|
|
*/
|
||
|
|
private static $_content_for = array();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Stores the names of the active contentFor's.
|
||
|
|
*/
|
||
|
|
private static $_content_for_names = array();
|
||
|
|
|
||
|
|
protected $_buffer;
|
||
|
|
|
||
|
|
static public function clean_buffers()
|
||
|
|
{
|
||
|
|
if ($status = ob_get_status()) {
|
||
|
|
foreach (range(0, $status['level']) as $lvl)
|
||
|
|
ob_end_clean();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates content for $name by calling $block().
|
||
|
|
* If no $block is passed, it's checked if content for $name
|
||
|
|
* exists.
|
||
|
|
*/
|
||
|
|
public function contentFor($name, Closure $block = null, $prefix = false)
|
||
|
|
{
|
||
|
|
if (!$block) {
|
||
|
|
return isset(self::$_content_for[$name]);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!isset(self::$_content_for[$name]))
|
||
|
|
self::$_content_for[$name] = '';
|
||
|
|
|
||
|
|
ob_start();
|
||
|
|
$block();
|
||
|
|
$this->_add_content_for($name, ob_get_clean(), $prefix);
|
||
|
|
}
|
||
|
|
|
||
|
|
public function provide($name, $content)
|
||
|
|
{
|
||
|
|
$this->_add_content_for($name, $content, false);
|
||
|
|
}
|
||
|
|
|
||
|
|
public function clear_content_for($name)
|
||
|
|
{
|
||
|
|
unset(self::$_content_for[$name]);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Yield seems to be a reserved keyword in PHP 5.5.
|
||
|
|
* Forced to change the name of the yield method to "content".
|
||
|
|
*/
|
||
|
|
public function content($name = null)
|
||
|
|
{
|
||
|
|
if ($name && isset(self::$_content_for[$name]))
|
||
|
|
return self::$_content_for[$name];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Passing a closure to do_content_for() will cause it
|
||
|
|
* to do the same as end_content_for(): add the buffered
|
||
|
|
* content. Thus, this method.
|
||
|
|
*
|
||
|
|
* @param string $name content's name
|
||
|
|
* @param string $value content's body
|
||
|
|
* @param bool $prefix to prefix or not the value to the current value
|
||
|
|
*/
|
||
|
|
private function _add_content_for($name, $value, $prefix)
|
||
|
|
{
|
||
|
|
!array_key_exists($name, self::$_content_for) && self::$_content_for[$name] = '';
|
||
|
|
if ($prefix)
|
||
|
|
self::$_content_for[$name] = $value . self::$_content_for[$name];
|
||
|
|
else
|
||
|
|
self::$_content_for[$name] .= $value;
|
||
|
|
}
|
||
|
|
}
|