AssetReference.php

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<?php
 
/*
 * This file is part of the Assetic package, an OpenSky project.
 *
 * (c) 2010-2014 OpenSky Project Inc
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
 
namespace Assetic\Asset;
 
use Assetic\AssetManager;
use Assetic\Filter\FilterInterface;
 
class AssetReference implements AssetInterface
{
    private $am;
    private $name;
    private $filters = array();
    private $clone = false;
    private $asset;
 
    public function __construct(AssetManager $am, $name)
    {
        $this->am = $am;
        $this->name = $name;
    }
 
    public function __clone()
    {
        $this->clone = true;
 
        if ($this->asset) {
            $this->asset = clone $this->asset;
        }
    }
 
    public function ensureFilter(FilterInterface $filter)
    {
        $this->filters[] = $filter;
    }
 
    public function getFilters()
    {
        $this->flushFilters();
 
        return $this->callAsset(__FUNCTION__);
    }
 
    public function clearFilters()
    {
        $this->filters = array();
        $this->callAsset(__FUNCTION__);
    }
 
    public function load(FilterInterface $additionalFilter = null)
    {
        $this->flushFilters();
 
        return $this->callAsset(__FUNCTION__, array($additionalFilter));
    }
 
    public function dump(FilterInterface $additionalFilter = null)
    {
        $this->flushFilters();
 
        return $this->callAsset(__FUNCTION__, array($additionalFilter));
    }
 
    public function getContent()
    {
        return $this->callAsset(__FUNCTION__);
    }
 
    public function setContent($content)
    {
        $this->callAsset(__FUNCTION__, array($content));
    }
 
    public function getSourceRoot()
    {
        return $this->callAsset(__FUNCTION__);
    }
 
    public function getSourcePath()
    {
        return $this->callAsset(__FUNCTION__);
    }
 
    public function getSourceDirectory()
    {
        return $this->callAsset(__FUNCTION__);
    }
 
    public function getTargetPath()
    {
        return $this->callAsset(__FUNCTION__);
    }
 
    public function setTargetPath($targetPath)
    {
        $this->callAsset(__FUNCTION__, array($targetPath));
    }
 
    public function getLastModified()
    {
        return $this->callAsset(__FUNCTION__);
    }
 
    public function getVars()
    {
        return $this->callAsset(__FUNCTION__);
    }
 
    public function getValues()
    {
        return $this->callAsset(__FUNCTION__);
    }
 
    public function setValues(array $values)
    {
        $this->callAsset(__FUNCTION__, array($values));
    }
 
    // private
 
    private function callAsset($method, $arguments = array())
    {
        $asset = $this->resolve();
 
        return call_user_func_array(array($asset, $method), $arguments);
    }
 
    private function flushFilters()
    {
        $asset = $this->resolve();
 
        while ($filter = array_shift($this->filters)) {
            $asset->ensureFilter($filter);
        }
    }
 
    private function resolve()
    {
        if ($this->asset) {
            return $this->asset;
        }
 
        $asset = $this->am->get($this->name);
 
        if ($this->clone) {
            $asset = $this->asset = clone $asset;
        }
 
        return $asset;
    }
}