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Copy pathDispatcher.php
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263 lines (224 loc) · 4.79 KB
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<?php namespace Feather\Extensions;
use ArrayAccess;
use FilesystemIterator;
use Illuminate\Filesystem;
use InvalidArgumentException;
use Feather\Models\Extension as ExtensionModel;
class Dispatcher implements ArrayAccess {
/**
* Laravel application instance.
*
* @var Illuminate\Foundation\Application
*/
protected $app;
/**
* Filesystem instance.
*
* @var Illuminate\Filesystem
*/
protected $files;
/**
* Path to extensions directory.
*
* @var string
*/
protected $path;
/**
* Started extensions.
*
* @var array
*/
protected $started = array();
/**
* Registered extensions
*
* @var array
*/
protected $extensions = array();
/**
* Create a new dispatcher instance.
*
* @param Illuminate\Filesystem $files
* @param string $path
* @return void
*/
public function __construct(Filesystem $files, $path)
{
$this->files = $files;
$this->path = $path;
}
/**
* Set the Laravel application instance.
*
* @param Illuminate\Foundation\Application $app
* @return void
*/
public function setApplication($app)
{
$this->app = $app;
}
/**
* Register an array of extensions with the dispatcher.
*
* @param array $extensions
* @return void
*/
public function registerExtensions($extensions)
{
foreach ($extensions as $extension)
{
$this->register($extension);
}
}
/**
* Get the started extensions.
*
* @return array
*/
public function getStarted()
{
return $this->started;
}
/**
* Register an extension with the dispatcher.
*
* @param array $extension
* @return array
*/
public function register(array $extension)
{
$identifier = $extension['identifier'];
$path = $this->path.'/'.$extension['location'];
if ($this->files->exists($path))
{
$extension['path'] = $path;
$extension['loaded'] = array();
$this["extension.{$extension['identifier']}"] = $extension;
// If an extension is set to be automatically started then we'll hand it off to
// the starting method.
if ($extension['auto'])
{
$this->start($extension['identifier']);
}
return $this["extension.{$extension['identifier']}"];
}
}
/**
* Determine if an extension is regisetered.
*
* @param string $identifier
* @return bool
*/
public function isRegistered($identifier)
{
return isset($this["extension.{$identifier}"]);
}
/**
* Determine if an extension is started.
*
* @param string $identifier
* @return bool
*/
public function isStarted($identifier)
{
return in_array($identifier, $this->started);
}
/**
* Start an extension.
*
* @param string $identifier
* @return void
*/
public function start($identifier)
{
if ($this->isStarted($identifier) or ! $this->isRegistered($identifier))
{
return;
}
$extension = $this["extension.{$identifier}"];
foreach ($this->findExtensions($extension['path']) as $file)
{
$name = $file->getBasename(".{$file->getExtension()}");
if (ends_with($name, 'Extension'))
{
$location = str_replace('/', '\\', $extension['location']);
$class = "Feather\\Extensions\\{$location}\\{$name}";
// Instantiate the new extension class and assign it to the extensions loaded classes. The class
// receives an instance of the Laravel application.
$extension['loaded'][$class] = $this->loadExtension($class);
$extension['loaded'][$class]->start($this->app);
}
}
$this["extension.{$identifier}"] = $extension;
// Add the extension to the array of started extensions.
$this->started[] = $identifier;
}
/**
* Get a FilesystemIterator to find the extensions within a path.
*
* @param string $path
* @return FilesystemIterator
*/
public function findExtensions($path)
{
return new FilesystemIterator($path);
}
/**
* Create a new extension instance.
*
* @param string $class
* @return Feather\Extensions\Extension
*/
public function loadExtension($class)
{
return new $class($this->app);
}
public function fire()
{
}
/**
* Determine if a given offset exists.
*
* @param string $key
* @return bool
*/
public function offsetExists($key)
{
return isset($this->extensions[$key]);
}
/**
* Get the value at a given offset.
*
* @param string $key
* @return mixed
*/
public function offsetGet($key)
{
if ( ! isset($this->extensions[$key]))
{
throw new InvalidArgumentException("Type {$key} is not bound.");
}
return $this->extensions[$key];
}
/**
* Set the value at a given offset.
*
* @param string $key
* @param mixed $value
* @return void
*/
public function offsetSet($key, $value)
{
$this->extensions[$key] = $value;
}
/**
* Unset the value at a given offset.
*
* @param string $key
* @return void
*/
public function offsetUnset($key)
{
unset($this->extensions[$key]);
}
}