true, 'autofocus' => true, 'disabled' => true, 'form' => true, 'formaction' => true, 'formenctype' => true, 'formmethod' => true, 'formnovalidate' => true, 'formtarget' => true, 'type' => true, 'value' => true, ); /** * Valid values for the button type * * @var array */ protected $validTypes = array( 'button' => true, 'reset' => true, 'submit' => true, ); /** * Invoke helper as functor * * Proxies to {@link render()}. * * @param ElementInterface|null $element * @param null|string $buttonContent * @return string|FormButton */ public function __invoke(ElementInterface $element = null, $buttonContent = null) { if (!$element) { return $this; } return $this->render($element, $buttonContent); } /** * Render a form element from the provided $element, * using content from $buttonContent or the element's "label" attribute * * @param ElementInterface $element * @param null|string $buttonContent * @throws Exception\DomainException * @return string */ public function render(ElementInterface $element, $buttonContent = null) { $openTag = $this->openTag($element); if (null === $buttonContent) { $buttonContent = $element->getLabel(); if (null === $buttonContent) { throw new Exception\DomainException(sprintf( '%s expects either button content as the second argument, ' . 'or that the element provided has a label value; neither found', __METHOD__ )); } if (null !== ($translator = $this->getTranslator())) { $buttonContent = $translator->translate( $buttonContent, $this->getTranslatorTextDomain() ); } } $escape = $this->getEscapeHtmlHelper(); return $openTag . $escape($buttonContent) . $this->closeTag(); } /** * Generate an opening button tag * * @param null|array|ElementInterface $attributesOrElement * @throws Exception\InvalidArgumentException * @throws Exception\DomainException * @return string */ public function openTag($attributesOrElement = null) { if (null === $attributesOrElement) { return ''; } if (is_array($attributesOrElement)) { $attributes = $this->createAttributesString($attributesOrElement); return sprintf('', $attributes); } if (!$attributesOrElement instanceof ElementInterface) { throw new Exception\InvalidArgumentException(sprintf( '%s expects an array or Zend\Form\ElementInterface instance; received "%s"', __METHOD__, (is_object($attributesOrElement) ? get_class($attributesOrElement) : gettype($attributesOrElement)) )); } $element = $attributesOrElement; $name = $element->getName(); if (empty($name) && $name !== 0) { throw new Exception\DomainException(sprintf( '%s requires that the element has an assigned name; none discovered', __METHOD__ )); } $attributes = $element->getAttributes(); $attributes['name'] = $name; $attributes['type'] = $this->getType($element); $attributes['value'] = $element->getValue(); return sprintf( '', $this->createAttributesString($attributes) ); } /** * Return a closing button tag * * @return string */ public function closeTag() { return ''; } /** * Determine button type to use * * @param ElementInterface $element * @return string */ protected function getType(ElementInterface $element) { $type = $element->getAttribute('type'); if (empty($type)) { return 'submit'; } $type = strtolower($type); if (!isset($this->validTypes[$type])) { return 'submit'; } return $type; } }