<?php
/**
* User: delboy1978uk
* Date: 04/12/2016
* Time: 22:33
*/
namespace Del\Form\Renderer\Field;
use Del\Form\Field\FieldInterface;
use Del\Form\Field\CheckBox;
use DOMDocumentFragment;
use DOMElement;
use DOMNode;
use DOMText;
use InvalidArgumentException;
use LogicException;
class CheckboxRender extends AbstractFieldRender implements FieldRendererInterface
{
/** @var DOMDocumentFragment $div */
private $fragment;
/**
* @param FieldInterface $field
* @param DOMElement $element
* @return DOMNode
*/
public function renderBlock(FieldInterface $field, DOMElement $element)
{
// We don't really want a containing div, so we'll ignore $element
// and instead create a DOMDocumentFragment
unset($element);
$this->fragment = $this->getDom()->createDocumentFragment();
// Make sure the FieldInterface is actually a Radio
if (!$field instanceof CheckBox) {
throw new InvalidArgumentException('Must be a Del\Form\Field\Checkbox');
}
$inline = $field->isRenderInline();
$options = $field->getOptions();
if (empty($options)) {
throw new LogicException('You must set at least one option.');
}
// Loop through each checkbox element (the options)
foreach ($options as $value => $label) {
$radio = $this->processOption($field, $value, $label, $inline);
$this->fragment->appendChild($radio);
}
return $this->fragment;
}
/**
* @param FieldInterface $field
* @param $value
* @param $labelText
* @return DOMElement
*/
private function processOption(FieldInterface $field, $value, $labelText, $inline)
{
if ($inline === true) {
return $this->renderCheckboxInline($field, $value, $labelText);
}
return $this->renderCheckbox($field, $value, $labelText);
}
/**
* @param FieldInterface $field
* @param $value
* @param $labelText
* @return DOMElement
*/
private function renderCheckbox(FieldInterface $field, $value, $labelText)
{
$div = $this->getDom()->createElement('div');
$div->setAttribute('class', 'checkbox');
$radio = $this->renderCheckboxInline($field, $value, $labelText);
$radio->removeAttribute('class');
$div->appendChild($radio);
return $div;
}
/**
* @param FieldInterface $field
* @param $value
* @param $labelText
* @return DOMElement
*/
private function renderCheckboxInline(FieldInterface $field, $value, $labelText)
{
$label = $this->getDom()->createElement('label');
$label->setAttribute('for', $field->getId());
$label->setAttribute('class', 'checkbox-inline');
$radio = $this->getDom()->createElement('input');
$radio->setAttribute('type', 'checkbox');
$radio->setAttribute('name', $field->getName().'[]');
$radio->setAttribute('value', $value);
$text = $this->createText($labelText);
if (in_array($value, $field->getValue())) {
$radio->setAttribute('checked', 'checked');
}
$label->appendChild($radio);
$label->appendChild($text);
return $label;
}
}
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