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<?php |
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namespace Flynt; |
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class ComponentManager |
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{ |
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protected $components = []; |
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protected static $instance = null; |
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public static function getInstance() |
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{ |
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if (null === self::$instance) { |
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self::$instance = new self(); |
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} |
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return self::$instance; |
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} |
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/** |
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* clone |
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* |
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* Prevent cloning with 'protected' keyword |
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*/ |
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protected function __clone() |
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{ |
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} |
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/** |
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* constructor |
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* |
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* Prevent instantiation with 'protected' keyword |
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*/ |
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protected function __construct() |
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{ |
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} |
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public function registerComponent($componentName, $componentPath = null) |
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{ |
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// check if component already registered |
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if ($this->isRegistered($componentName)) { |
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trigger_error("Component {$componentName} is already registered!", E_USER_WARNING); |
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return false; |
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} |
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// register component / require functions.php |
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$componentPath = trailingslashit(apply_filters('Flynt/componentPath', $componentPath, $componentName)); |
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// add component to internal list (array) |
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$this->add($componentName, $componentPath); |
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do_action('Flynt/registerComponent', $componentName); |
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do_action("Flynt/registerComponent?name={$componentName}", $componentName); |
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return true; |
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} |
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public function getComponentFilePath($componentName, $fileName = 'index.php') |
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{ |
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$componentDir = $this->getComponentDirPath($componentName); |
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if (false === $componentDir) { |
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return false; |
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} |
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// dir path already has a trailing slash |
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$filePath = $componentDir . $fileName; |
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return is_file($filePath) ? $filePath : false; |
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} |
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public function getComponentDirPath($componentName) |
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{ |
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$dirPath = $this->get($componentName); |
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// check if dir exists |
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if (!is_dir($dirPath)) { |
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return false; |
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} |
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return $dirPath; |
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} |
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protected function add($name, $path) |
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{ |
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$this->components[$name] = $path; |
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return true; |
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} |
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public function get($componentName) |
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{ |
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// check if component exists / is registered |
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if (!$this->isRegistered($componentName)) { |
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trigger_error("Cannot get component: Component '{$componentName}' is not registered!", E_USER_WARNING); |
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return false; |
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} |
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return $this->components[$componentName]; |
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} |
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public function remove($componentName) |
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{ |
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unset($this->components[$componentName]); |
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} |
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public function getAll() |
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{ |
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return $this->components; |
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} |
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public function removeAll() |
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{ |
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$this->components = []; |
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} |
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public function isRegistered($componentName) |
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{ |
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return array_key_exists($componentName, $this->components); |
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} |
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} |
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flyntwp /
flynt
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