Your IP : 216.73.216.79
<?php
namespace YOOtheme\View;
use YOOtheme\View;
class HtmlHelper
{
/**
* @var callable[]
*/
public $transforms = [];
/**
* Constructor.
*
* @param View $view
*/
public function __construct(View $view)
{
$element = __NAMESPACE__ . '\\HtmlElement';
$view['html'] = $this;
$view->addFunction('el', [$this, 'el']);
$view->addFunction('link', [$this, 'link']);
$view->addFunction('image', [$this, 'image']);
$view->addFunction('form', [$this, 'form']);
$view->addFunction('attrs', [$this, 'attrs']);
$view->addFunction('expr', [$element, 'expr']);
$view->addFunction('cls', [$element, 'expr']);
$view->addFunction('tag', [$element, 'tag']);
}
/**
* Creates an element.
*
* @param string $name
* @param array $attrs
* @param mixed $contents
*
* @return HtmlElement
*/
public function el($name, array $attrs = [], $contents = false)
{
return new HtmlElement($name, $attrs, $contents, [$this, 'applyTransform']);
}
/**
* Renders a link tag.
*
* @param string $title
* @param string $url
* @param array $attrs
*
* @return string
*/
public function link($title, $url = null, array $attrs = [])
{
return "<a{$this->attrs(['href' => $url], $attrs)}>{$title}</a>";
}
/**
* Renders an image tag.
*
* @param array|string $url
* @param array $attrs
*
* @return string
*/
public function image($url, array $attrs = [])
{
$url = (array) $url;
$path = array_shift($url);
$params = $url
? '#' .
http_build_query(
array_map(function ($value) {
return is_array($value) ? implode(',', $value) : $value;
}, $url),
'',
'&'
)
: '';
if (empty($attrs['alt'])) {
$attrs['alt'] = true;
}
return "<img{$this->attrs(['src' => $path . $params], $attrs)}>";
}
/**
* Renders a form tag.
*
* @param array $tags
* @param array $attrs
*
* @return string
*/
public function form($tags, array $attrs = [])
{
return HtmlElement::tag(
'form',
$attrs,
array_map(function ($tag) {
return HtmlElement::tag($tag['tag'], array_diff_key($tag, ['tag' => null]));
}, $tags)
);
}
/**
* Renders tag attributes.
*
* @param array $attrs
*
* @return string
*/
public function attrs(array $attrs)
{
$params = [];
if (count($args = func_get_args()) > 1) {
$attrs = call_user_func_array('array_merge_recursive', $args);
}
if (isset($attrs[':params'])) {
$params = $attrs[':params'];
unset($attrs[':params']);
}
return HtmlElement::attrs($attrs, $params);
}
/**
* Adds a component.
*
* @param string $name
* @param callable $component
*/
public function addComponent($name, callable $component)
{
$this->addTransform($name, $component);
}
/**
* Adds a transform.
*
* @param string $name
* @param callable $transform
*/
public function addTransform($name, callable $transform)
{
$this->transforms[$name][] = $transform;
}
/**
* Applies transform callbacks.
*
* @param HtmlElement $element
* @param array $params
*
* @return string|void
*/
public function applyTransform(HtmlElement $element, array $params = [])
{
if (empty($this->transforms[$element->name])) {
return;
}
foreach ($this->transforms[$element->name] as $transform) {
if ($result = call_user_func($transform, $element, $params)) {
return $result;
}
}
}
}