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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Widget\Model;
class NamespaceResolver
{
/**
* List of module namespaces
*
* @var array
*/
protected $moduleNamespaces;
/**
* @var \Magento\Framework\Module\ModuleListInterface
*/
protected $moduleList;
/**
* @param \Magento\Framework\Module\ModuleListInterface $moduleList
*/
public function __construct(\Magento\Framework\Module\ModuleListInterface $moduleList)
{
$this->moduleList = $moduleList;
}
/**
* Determine whether provided name begins from any available modules, according to namespaces priority
* If matched, returns as the matched module "factory" name or a fully qualified module name
*
* @param string $name
* @param bool $asFullModuleName
* @return string
*/
public function determineOmittedNamespace($name, $asFullModuleName = false)
{
$this->prepareModuleNamespaces();
$name = $this->prepareName($name);
$partsNum = count($name);
$defaultNamespaceFlag = false;
foreach ($this->moduleNamespaces as $namespaceName => $namespace) {
// assume the namespace is omitted (default namespace only, which comes first)
if ($defaultNamespaceFlag === false) {
$defaultNamespaceFlag = true;
$defaultNS = $namespaceName . '_' . $name[0];
if (isset($namespace[$defaultNS])) {
return $asFullModuleName ? $namespace[$defaultNS] : $name[0]; // return omitted as well
}
}
// assume namespace is qualified
if (isset($name[1])) {
$fullNS = $name[0] . '_' . $name[1];
if (2 <= $partsNum && isset($namespace[$fullNS])) {
return $asFullModuleName ? $namespace[$fullNS] : $fullNS;
}
}
}
return '';
}
/**
* Prepare module namespaces
*
* @return void
*/
protected function prepareModuleNamespaces()
{
if (null === $this->moduleNamespaces) {
$this->moduleNamespaces = [];
foreach ($this->moduleList->getNames() as $moduleName) {
$module = strtolower($moduleName);
$this->moduleNamespaces[substr($module, 0, strpos($module, '_'))][$module] = $moduleName;
}
}
}
/**
* Prepare name
*
* @param string $name
* @return array
*/
protected function prepareName($name)
{
$explodeString = strpos($name, '\\') === false ? '_' : '\\';
return explode($explodeString, strtolower($name));
}
}