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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\View\File\Collector\Decorator;
use Magento\Framework\Module\ModuleListInterface;
use Magento\Framework\View\Design\ThemeInterface;
use Magento\Framework\View\File;
use Magento\Framework\View\File\CollectorInterface;
/**
* Decorator that sorts view files according to dependencies between modules they belong to
*/
class ModuleDependency implements CollectorInterface
{
/**
* Subject
*
* @var CollectorInterface
*/
private $subject;
/**
* Module list
*
* @var ModuleListInterface
*/
private $moduleList;
/**
* Fully-qualified names of modules, ordered by their priority in the system
*
* @var array|null
*/
private $orderedModules;
/**
* Constructor
*
* @param CollectorInterface $subject
* @param ModuleListInterface $listInterface
*/
public function __construct(
CollectorInterface $subject,
ModuleListInterface $listInterface
) {
$this->subject = $subject;
$this->moduleList = $listInterface;
}
/**
* Retrieve view files, sorted by the priority of modules they belong to
*
* @param ThemeInterface $theme
* @param string $filePath
* @return \Magento\Framework\View\File[]
*/
public function getFiles(ThemeInterface $theme, $filePath)
{
$result = $this->subject->getFiles($theme, $filePath);
usort($result, [$this, 'compareFiles']);
return $result;
}
/**
* Compare view files according to the priority of modules they belong to. To be used as a callback for sorting.
*
* @param File $fileOne
* @param File $fileTwo
* @return int
*/
public function compareFiles(File $fileOne, File $fileTwo)
{
if ($fileOne->getModule() == $fileTwo->getModule()) {
return strcmp($fileOne->getName(), $fileTwo->getName());
}
$moduleOnePriority = $this->getModulePriority($fileOne->getModule());
$moduleTwoPriority = $this->getModulePriority($fileTwo->getModule());
if ($moduleOnePriority == $moduleTwoPriority) {
return strcmp($fileOne->getModule(), $fileTwo->getModule());
}
return ($moduleOnePriority < $moduleTwoPriority ? -1 : 1);
}
/**
* Retrieve priority of a module relatively to other modules in the system
*
* @param string $moduleName
* @return int
*/
protected function getModulePriority($moduleName)
{
if ($this->orderedModules === null) {
$this->orderedModules = $this->moduleList->getNames();
}
$result = array_search($moduleName, $this->orderedModules);
// Assume unknown modules have the same priority, distinctive from known modules
if ($result === false) {
return -1;
}
return $result;
}
}