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<?php |
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|
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namespace Tableberg\Renderer; |
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|
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/** |
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* @param mixed $value |
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* @return mixed|null |
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*/ |
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function getOrNull(&$value) { |
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return isset($value) ? $value : null; |
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} |
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|
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/** |
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* @param mixed $value |
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* @return array<mixed>|null |
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*/ |
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function getArrayOrNull(&$value) { |
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$maybeValue = getOrNull($value); |
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return is_array($maybeValue) ? $maybeValue : null; |
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} |
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|
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/** |
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* @param mixed $value |
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* @return string|null |
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*/ |
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function getStringOrNull(&$value) { |
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$maybeValue = getOrNull($value); |
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return is_string($maybeValue) ? $maybeValue : null; |
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} |
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|
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/** |
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* @param mixed $value |
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* @return bool|null |
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*/ |
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function getBoolOrNull(&$value) { |
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$maybeValue = getOrNull($value); |
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return is_bool($maybeValue) ? $maybeValue : null; |
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} |
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|
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/** |
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* @param float $value |
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* @param float $min |
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* @param float $max |
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* @return float |
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*/ |
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function clamp($value, $min, $max) { |
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return max($min, min($value, $max)); |
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} |
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|
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/** |
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* Check whether a value is undefined. |
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* |
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* @param mixed $value Value to check. |
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* @return bool |
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*/ |
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function is_undefined($value) { |
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return null === $value || !isset($value); |
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} |
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|
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/** |
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* Generate CSS string from styles array. |
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* |
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* @param array $styles Styles array. |
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* @return string |
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*/ |
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function generate_css_string($styles) { |
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$css_string = ''; |
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|
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foreach ($styles as $key => $value) { |
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if ( |
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!is_undefined($value) && |
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false !== $value && |
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( |
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!is_string($value) || |
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( |
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trim($value) !== '' && |
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trim($value) !== 'undefined undefined undefined' |
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) |
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) |
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) { |
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$css_string .= $key . ': ' . $value . '; '; |
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} |
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} |
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|
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return $css_string; |
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} |
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|
