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<?php |
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namespace Jhoff\BladeVue\Components; |
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use Exception; |
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use Illuminate\Support\Arr; |
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use Illuminate\Support\Str; |
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use Jhoff\BladeVue\Element; |
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abstract class Component |
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{ |
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/** |
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* Dom element builder instance |
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* |
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* @var \Jhoff\BladeVue\Element |
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*/ |
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protected $element; |
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/** |
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* Default attributes to apply to the component |
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* |
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* @var array |
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*/ |
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protected static $defaultAttributes = []; |
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/** |
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* Builds a component element and returns the ending element tag |
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* |
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* @return string |
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*/ |
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public static function end() : string |
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{ |
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return (new static) |
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->getEndTag(); |
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} |
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/** |
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* Builds a component element and returns the starting element tag |
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* |
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* @param string $name |
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* @param array $attributes |
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* @return string |
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*/ |
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public static function start(string $name, array $attributes = []) : string |
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{ |
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if (count(func_get_args()) > 2) { |
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throw new Exception('Too many arguments passed to vue directive'); |
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} |
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if (!empty($attributes) && !Arr::isAssoc($attributes)) { |
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throw new Exception('Second argument for vue directive must be an associtive array'); |
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} |
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return (new static) |
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->setAttributes(static::$defaultAttributes) |
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->setAttribute('is', $name) |
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->setAttributes($attributes) |
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->getStartTag(); |
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} |
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/** |
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* Instantiates a new component element to build off of |
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*/ |
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protected function __construct() |
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{ |
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$this->element = new Element('component'); |
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} |
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/** |
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* Gets the end tag from the element |
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* |
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* @return string |
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*/ |
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protected function getEndTag() : string |
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{ |
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return $this->element->getEndTag(); |
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} |
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/** |
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* Gets the start tag from the element |
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* |
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* @return string |
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*/ |
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protected function getStartTag() : string |
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{ |
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return $this->element->getStartTag(); |
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} |
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/** |
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* Resolves the given attribute to vue component form |
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* |
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* @param string $name |
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* @param mixed $value |
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* @return array |
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*/ |
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protected function resolveAttributeValue(string $name, $value) : array |
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{ |
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if (is_bool($value)) { |
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return [":$name", $value ? 'true' : 'false']; |
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} |
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if (is_numeric($value)) { |
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return [":$name", $value]; |
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} |
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if (!is_scalar($value) && !is_null($value)) { |
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return [":$name", e(json_encode($value))]; |
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} |
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return [$name, $value]; |
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} |
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/** |
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* Resolve and set an attribute on the element |
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* |
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* @param string $name |
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* @param mixed $value |
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* @return $this |
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*/ |
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protected function setAttribute(string $name, $value = null) |
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{ |
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list($name, $value) = $this->resolveAttributeValue($name, $value); |
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$this->element->setAttribute(Str::kebab($name), $value); |
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return $this; |
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} |
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/** |
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* Sets an array of attributes on the element |
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* |
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* @param array $attributes |
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* @return $this |
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*/ |
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protected function setAttributes(array $attributes) |
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{ |
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foreach ($attributes as $name => $value) { |
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$this->setAttribute($name, $value); |
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} |
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return $this; |
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} |
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} |
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jhoff /
blade-vue-directive
