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<?php |
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/** |
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* YIKES Inc. Easy Forms. |
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* |
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* @package YIKES\EasyForms |
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* @author Freddie Mixell |
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* @license GPL2 |
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*/ |
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namespace YIKES\EasyForms\View; |
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use YIKES\EasyForms\Exception\FailedToLoadView; |
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use YIKES\EasyForms\Exception\InvalidURI; |
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/** |
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* Class FormEscapedView. |
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* |
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* This is a Decorator that decorates a given View with escaping meant for |
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* HTML form output. |
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* |
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* @since %VERSION% |
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* |
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* @package YIKES\EasyForms\View |
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* @author Freddie Mixell |
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*/ |
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final class FormEscapedView implements View { |
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/** |
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* Form tags that are allowed to be rendered. |
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* |
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* @var array |
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*/ |
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protected $form_tags = [ |
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'form' => [ |
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'id' => true, |
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'class' => true, |
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'action' => true, |
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'method' => true, |
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'data-attr-form-id' => true, |
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], |
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'input' => [ |
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'id' => true, |
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'class' => true, |
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'type' => true, |
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'name' => true, |
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'value' => true, |
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'required' => true, |
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'maxlength' => true, |
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'placeholder' => true, |
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'style' => true, |
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], |
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'select' => [ |
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'id' => true, |
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'class' => true, |
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'type' => true, |
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'name' => true, |
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'value' => true, |
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'required' => true, |
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], |
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'textarea' => [ |
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'id' => true, |
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'class' => true, |
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'type' => true, |
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'name' => true, |
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'value' => true, |
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'required' => true, |
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], |
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'option' => [ |
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'id' => true, |
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'class' => true, |
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'type' => true, |
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'name' => true, |
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'value' => true, |
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'selected' => true, |
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], |
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'label' => [ |
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'for' => true, |
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], |
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'fieldset' => [ |
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'data-add-new-label' => true, |
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], |
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'p' => [ |
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'class' => true, |
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'id' => true, |
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] |
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]; |
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/** |
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* View instance to decorate. |
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* |
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* @since %VERSION% |
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* |
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* @var View |
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*/ |
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private $view; |
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/** |
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* Tags that are allowed to pass through the escaping function. |
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* |
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* @since %VERSION% |
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* |
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* @var array |
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*/ |
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private $allowed_tags = []; |
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/** |
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* Instantiate a FormEscapedView object. |
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* |
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* @since %VERSION% |
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* |
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* @param View $view View instance to decorate. |
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* @param array|null $allowed_tags Optional. Array of allowed tags to let |
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* through escaping functions. Set to sane |
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* defaults if none provided. |
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*/ |
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public function __construct( View $view, $allowed_tags = null ) { |
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$this->view = $view; |
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$this->allowed_tags = null === $allowed_tags |
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? $this->prepare_allowed_tags( wp_kses_allowed_html( 'post' ) ) |
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: $allowed_tags; |
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} |
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/** |
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* Prepare an array of allowed tags by adding form elements to the existing |
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* array. |
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* |
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* This makes sure that the basic form elements always pass through the |
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* escaping functions. |
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* |
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* @since %VERSION% |
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* |
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* @param array $allowed_tags Allowed tags as fetched from the WordPress |
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* defaults. |
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* |
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* @return array Modified tags array. |
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*/ |
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private function prepare_allowed_tags( $allowed_tags ) { |
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return array_replace_recursive( $allowed_tags, $this->form_tags ); |
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} |
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/** |
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* Render a given URI. |
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* |
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* @since %VERSION% |
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* |
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* @param array $context Context in which to render. |
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* |
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* @return string Rendered HTML. |
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* @throws FailedToLoadView If the View URI could not be loaded. |
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*/ |
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public function render( array $context = [] ) { |
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return wp_kses( $this->view->render( $context ), $this->allowed_tags ); |
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} |
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/** |
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* Render a partial view. |
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* |
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* This can be used from within a currently rendered view, to include |
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* nested partials. |
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* |
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* The passed-in context is optional, and will fall back to the parent's |
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* context if omitted. |
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* |
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* @since %VERSION% |
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* |
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* @param string $uri URI of the partial to render. |
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* @param array|null $context Context in which to render the partial. |
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* |
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* @return string Rendered HTML. |
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* @throws InvalidURI If the provided URI was not valid. |
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* @throws FailedToLoadView If the view could not be loaded. |
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*/ |
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public function render_partial( $uri, array $context = null ) { |
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return wp_kses( |
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$this->view->render_partial( $uri, $context ), |
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$this->allowed_tags |
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); |
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} |
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} |
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