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<?php |
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/** |
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* Created by PhpStorm. |
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* User: zenn |
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* Date: 03.01.2016 |
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* Time: 12:24 |
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*/ |
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namespace Ffcms\Core\Helper\HTML\System; |
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use Ffcms\Core\Helper\Type\Arr; |
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/** |
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* Class Dom - build html DOM structure based on anonymous callbacks |
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* @package Ffcms\Core\Helper\HTML |
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*/ |
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class Dom |
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{ |
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// single standalone tags |
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public static $singleTags = [ |
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'hr', 'br', 'img', 'input' |
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]; |
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// container tags |
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public static $containerTags = [ |
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'article', 'nav', |
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'div', 'p', 'a', |
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'b', 's', 'strong', 'strike', 'u', 'span', |
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'ul', 'ol', 'li', |
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'table', 'thead', 'tbody', 'tr', 'td', 'th', 'dt', 'dd', |
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'form', 'label' |
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]; |
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// private variables storage |
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private $_vars; |
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/** |
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* Catch all callbacks |
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* @param $name |
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* @param $arguments |
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* @return null|string |
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*/ |
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public function __call($name, $arguments) |
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{ |
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$content = null; |
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$properties = null; |
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// get closure anonymous function and call it |
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if (isset($arguments[0]) && $arguments[0] instanceof \Closure) { |
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$closure = array_shift($arguments); |
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$content = call_user_func_array($closure, $arguments); |
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} |
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// get properties for current lvl |
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if (isset($arguments[0]) && is_array($arguments[0])) { |
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$properties = $arguments[0]; |
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} |
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// build tag output html |
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return $this->buildTag($name, $content, $properties); |
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} |
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/** |
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* Build output content by tag name, tag content and properties |
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* @param string $name |
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* @param string|null $content |
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* @param array|null $properties |
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* @return null|string |
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*/ |
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private function buildTag($name, $content = null, array $properties = null) |
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{ |
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// looks like a single tag, <img src="" class="" />, <hr class="" /> |
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if (Arr::in($name, self::$singleTags)) { |
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return '<' . $name . self::applyProperties($properties) . ' />'; |
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} elseif(Arr::in($name, self::$containerTags)) { // looks like a container tag, <div class=""></div> |
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return '<' . $name . self::applyProperties($properties) . '>' . $content . '</' . $name . '>'; |
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} |
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// empty response |
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return null; |
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} |
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/** |
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* Parse properties from array to html string |
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* @param array|null $properties |
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* @return null|string |
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*/ |
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public static function applyProperties(array $properties = null) |
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{ |
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// if looks like nothing - return |
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if ($properties === null || count($properties) < 1) { |
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return null; |
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} |
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// build output string |
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$build = null; |
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foreach ($properties as $property => $value) { |
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if (!is_string($property)) { |
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continue; |
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} |
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// sounds like single standalone property, ex required, selected etc |
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if ($value === null || $value === false) { |
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$build .= ' ' . htmlentities($property, ENT_QUOTES); |
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} else { // sounds like a classic key="value" property |
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$build .= ' ' . htmlentities($property, ENT_QUOTES) . '="' . htmlentities($value, ENT_QUOTES) . '"'; |
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} |
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} |
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return $build; |
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} |
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/** |
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* Variable magic set |
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* @param string $name |
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* @param string $value |
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*/ |
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public function __set($name, $value) |
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{ |
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$this->_vars[$name] = $value; |
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} |
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/** |
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* Variable magic get |
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* @param string $name |
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* @return mixed |
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*/ |
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public function __get($name) |
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{ |
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return $this->_vars[$name]; |
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} |
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} |
phpffcms /
ffcms-core
