class Element

class Element extends Container {
    const WEB_ELEMENT_ID = 'element-6066-11e4-a52e-4f735466cecf';
    
    /**
     * Element ID
     *
     * @var string
     */
    private $id;
    
    /**
     * {@inheritdoc}
     */
    protected function methods() {
        return array(
            'attribute' => array(
                'GET',
            ),
            'clear' => array(
                'POST',
            ),
            'click' => array(
                'POST',
            ),
            'css' => array(
                'GET',
            ),
            'enabled' => array(
                'GET',
            ),
            'name' => array(
                'GET',
            ),
            'property' => array(
                'GET',
            ),
            'rect' => array(
                'GET',
            ),
            'screenshot' => array(
                'GET',
            ),
            'selected' => array(
                'GET',
            ),
            'text' => array(
                'GET',
            ),
            'value' => array(
                'POST',
            ),
            // Legacy JSON Wire Protocol
'displayed' => array(
                'GET',
            ),
            // @see https://w3c.github.io/webdriver/#element-displayedness
'equals' => array(
                'GET',
            ),
            'location' => array(
                'GET',
            ),
            'location_in_view' => array(
                'GET',
            ),
            'size' => array(
                'GET',
            ),
            'submit' => array(
                'POST',
            ),
        );
    }
    
    /**
     * {@inheritdoc}
     */
    protected function obsoleteMethods() {
        return array(
            'active' => array(
                'GET',
            ),
            'computedlabel' => array(
                'GET',
            ),
            'computedrole' => array(
                'GET',
            ),
            'drag' => array(
                'POST',
            ),
            'hover' => array(
                'POST',
            ),
            'selected' => array(
                'POST',
            ),
            'toggle' => array(
                'POST',
            ),
            'value' => array(
                'GET',
            ),
        );
    }
    
    /**
     * Constructor
     *
     * @param string $url URL
     * @param string $id  element ID
     */
    public function __construct($url, $id) {
        parent::__construct($url);
        $this->id = $id;
    }
    
    /**
     * Get element ID
     *
     * @return string
     */
    public function getID() {
        return $this->id;
    }
    
    /**
     * Get element shadow root: /session/:sessionId/element/:elementId/shadow
     *
     * shadow root method chaining, e.g.,
     * - $element->method()
     *
     * @return \WebDriver\Shadow|null
     *
     */
    public function shadow() {
        $result = $this->curl('POST', '/shadow');
        $value = $result['value'];
        if (array_key_exists(Shadow::SHADOW_ROOT_ID, (array) $value)) {
            $shadowRootReference = $value[Shadow::SHADOW_ROOT_ID];
            return new Shadow(preg_replace('/' . preg_quote('element/' . $this->id, '/') . '$/', '/', $this->url), $shadowRootReference);
        }
        return null;
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getIdentifierPath($identifier) {
        return preg_replace('/' . preg_quote($this->id) . '$/', $identifier, $this->url);
    }

}