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<?php |
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/** |
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* File containing the class {@see \AppUtils\StyleCollection}. |
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* |
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* @see \AppUtils\StyleCollection |
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*@subpackage HTML |
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* @package AppUtils |
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*/ |
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declare(strict_types=1); |
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namespace AppUtils; |
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use AppUtils\StyleCollection\StyleOptions; |
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use AppUtils\StyleCollection\StylesRenderer; |
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/** |
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* Utility class used to hold CSS styles, with |
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* chainable methods and an easy-to-use API for handling |
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* and filtering values. |
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* |
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* @package AppUtils |
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* @subpackage HTML |
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* @author Sebastian Mordziol <[email protected]> |
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*/ |
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class StyleCollection implements Interface_Stringable |
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{ |
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/** |
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* @var array<string,string> |
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*/ |
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private $styles = array(); |
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/** |
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* @param array<string,string|number|NumberInfo|Interface_Stringable|NULL> $styles |
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*/ |
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public function __construct(array $styles=array()) |
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{ |
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$this->options = new StyleOptions(); |
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$this->setStyles($styles); |
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} |
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/** |
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* @param array<string,string|number|NumberInfo|Interface_Stringable|NULL> $styles |
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* @return StyleCollection |
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*/ |
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public static function create(array $styles=array()) : StyleCollection |
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{ |
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return new StyleCollection($styles); |
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} |
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public function hasStyles() : bool |
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{ |
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return !empty($this->styles); |
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} |
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/** |
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* @return array<string,string> |
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*/ |
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public function getStyles() : array |
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{ |
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return $this->styles; |
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} |
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// region: 1) Setting styles |
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public function parseStylesString(string $string) : StyleCollection |
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{ |
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$lines = explode(';', $string); |
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foreach($lines as $line) |
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{ |
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$parts = explode(':', $line); |
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$this->style(trim($parts[0]), trim($parts[1])); |
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} |
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return $this; |
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} |
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/** |
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* Adds an associative array with styles. |
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* |
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* NOTE: Uses {@see StyleCollection::styleAuto()} to add |
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* the individual styles. |
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* |
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* @param array<string,string|number|NumberInfo|Interface_Stringable|NULL> $styles |
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* @return $this |
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*/ |
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public function setStyles(array $styles) : StyleCollection |
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{ |
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foreach($styles as $name => $value) |
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{ |
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$this->styleAuto($name, $value); |
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} |
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return $this; |
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} |
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/** |
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* Sets a style value. |
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* |
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* @param string $name |
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* @param string $value |
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* @param bool $important |
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* @return $this |
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*/ |
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public function style(string $name, string $value, bool $important=false) : StyleCollection |
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{ |
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if($value === '') |
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{ |
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return $this; |
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} |
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if($important && stripos($value, '!important') === false) |
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{ |
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$value .= ' !important'; |
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} |
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$this->styles[$name] = $value; |
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return $this; |
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} |
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/** |
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* Adds a style, automatically detecting the value type. |
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* |
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* @param string $name |
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* @param string|number|NumberInfo|Interface_Stringable|NULL $value |
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* @param bool $important |
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* @return $this |
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*/ |
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public function styleAuto(string $name, $value, bool $important=false) : StyleCollection |
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{ |
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if($value instanceof NumberInfo) |
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{ |
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return $this->style($name, $value->toCSS(), $important); |
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} |
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return $this->style($name, (string)$value, $important); |
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} |
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public function stylePX(string $name, int $px, bool $important=false) : StyleCollection |
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{ |
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return $this->style($name, $px.'px', $important); |
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} |
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public function stylePercent(string $name, float $percent, bool $important) : StyleCollection |
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{ |
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return $this->style($name, $percent.'%', $important); |
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} |
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public function styleEM(string $name, float $em, bool $important) : StyleCollection |
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{ |
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return $this->style($name, $em.'em', $important); |
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} |
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public function styleREM(string $name, float $em, bool $important) : StyleCollection |
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{ |
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return $this->style($name, $em.'rem', $important); |
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} |
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/** |
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* Adds a number, using the {@see parseNumber()} function |
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* to parse the value, and convert it to CSS. |
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* |
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* @param string $name |
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* @param NumberInfo|string|int|float|NULL $value |
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* @param bool $important |
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* @return $this |
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*/ |
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public function styleParseNumber(string $name, $value, bool $important=false) : StyleCollection |
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{ |
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return $this->styleNumber($name, parseNumber($value), $important); |
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} |
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/** |
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* Adds an existing number info instance to add its CSS value. |
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* |
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* @param string $name |
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* @param NumberInfo $info |
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* @param bool $important |
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* @return $this |
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*/ |
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public function styleNumber(string $name, NumberInfo $info, bool $important=false) : StyleCollection |
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{ |
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$this->style($name, $info->toCSS(), $important); |
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return $this; |
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} |
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public function remove(string $name) : StyleCollection |
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{ |
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if(isset($this->styles[$name])) |
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{ |
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unset($this->styles[$name]); |
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} |
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return $this; |
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} |
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/** |
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* Merges all styles of this collection with those |
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* from the specified collection, overwriting existing |
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* styles. |
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* |
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* @param StyleCollection $collection |
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* @return $this |
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*/ |
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public function mergeWith(StyleCollection $collection) : StyleCollection |
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{ |
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return $this->setStyles($collection->getStyles()); |
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} |
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/** |
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* Merges all the specified style collections into |
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* a new collection that contains all styles from |
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* all collections. |
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* |
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* NOTE: Order is important, since every merge can |
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* overwrite existing styles. |
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* |
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* @param StyleCollection ...$collections |
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* @return StyleCollection |
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*/ |
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public static function merge(...$collections) : StyleCollection |
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{ |
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$all = self::create(); |
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foreach($collections as $collection) |
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{ |
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$all->mergeWith($collection); |
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} |
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return $all; |
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} |
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// endregion |
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// region: 3) Rendering |
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public function render() : string |
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{ |
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return (new StylesRenderer($this))->render(); |
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} |
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public function display() : StyleCollection |
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{ |
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echo $this->render(); |
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return $this; |
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} |
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public function __toString() |
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{ |
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return $this->render(); |
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} |
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// endregion |
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// region: 2) Options handling |
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/** |
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* @var StyleOptions |
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*/ |
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private $options; |
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/** |
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* Use the option collection to customize the way |
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* the styles are rendered. |
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* |
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* @return StyleOptions |
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*/ |
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public function getOptions() : StyleOptions |
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{ |
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return $this->options; |
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} |
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/** |
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* Switches the rendering to stylesheet mode: This |
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* will automatically format the styles for use in |
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* a CSS stylesheet (newlines, indenting, etc.). |
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* |
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* @return $this |
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*/ |
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public function configureForStylesheet() : StyleCollection |
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{ |
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$this->options->configureForStylesheet(); |
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return $this; |
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} |
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/** |
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* Switches the rendering to inline mode: compact list of |
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* styles for use in HTML attributes for example. |
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* |
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* (This is the default configuration) |
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* |
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* @return StyleCollection |
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*/ |
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public function configureForInline() : StyleCollection |
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{ |
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$this->options->configureForInline(); |
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return $this; |
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} |
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// endregion |
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} |
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