| Server IP : 134.29.175.74 / Your IP : 216.73.216.160 Web Server : nginx/1.10.2 System : Windows NT CST-WEBSERVER 10.0 build 19045 (Windows 10) i586 User : Administrator ( 0) PHP Version : 7.1.0 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : OFF | Perl : OFF | Python : OFF | Sudo : OFF | Pkexec : OFF Directory : /nginx/html/JimMartinson/CST1146/Resources/Examples/Week/16/vendor/symfony/browser-kit/ |
Upload File : |
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\BrowserKit;
/**
* History.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class History
{
protected $stack = [];
protected $position = -1;
/**
* Clears the history.
*/
public function clear()
{
$this->stack = [];
$this->position = -1;
}
/**
* Adds a Request to the history.
*/
public function add(Request $request)
{
$this->stack = \array_slice($this->stack, 0, $this->position + 1);
$this->stack[] = clone $request;
$this->position = \count($this->stack) - 1;
}
/**
* Returns true if the history is empty.
*
* @return bool
*/
public function isEmpty()
{
return 0 == \count($this->stack);
}
/**
* Goes back in the history.
*
* @return Request
*
* @throws \LogicException if the stack is already on the first page
*/
public function back()
{
if ($this->position < 1) {
throw new \LogicException('You are already on the first page.');
}
return clone $this->stack[--$this->position];
}
/**
* Goes forward in the history.
*
* @return Request
*
* @throws \LogicException if the stack is already on the last page
*/
public function forward()
{
if ($this->position > \count($this->stack) - 2) {
throw new \LogicException('You are already on the last page.');
}
return clone $this->stack[++$this->position];
}
/**
* Returns the current element in the history.
*
* @return Request
*
* @throws \LogicException if the stack is empty
*/
public function current()
{
if (-1 == $this->position) {
throw new \LogicException('The page history is empty.');
}
return clone $this->stack[$this->position];
}
}