← All changes | renderer/utils.php +38 -0 1.1.3 → 1.1.5 View file →

		@@ -45,4 +45,42 @@
45	45	*/
46	46	function clamp($value, $min, $max) {
47	47	return max($min, min($value, $max));
48	48	}
	49	+
	50	+/**
	51	+ * Check whether a value is undefined.
	52	+ *
	53	+ * @param mixed $value Value to check.
	54	+ * @return bool
	55	+ */
	56	+function is_undefined($value) {
	57	+ return null === $value || !isset($value);
	58	+}
	59	+
	60	+/**
	61	+ * Generate CSS string from styles array.
	62	+ *
	63	+ * @param array $styles Styles array.
	64	+ * @return string
	65	+ */
	66	+function generate_css_string($styles) {
	67	+ $css_string = '';
	68	+
	69	+ foreach ($styles as $key => $value) {
	70	+ if (
	71	+ !is_undefined($value) &&
	72	+ false !== $value &&
	73	+ (
	74	+ !is_string($value) ||
	75	+ (
	76	+ trim($value) !== '' &&
	77	+ trim($value) !== 'undefined undefined undefined'
	78	+ )
	79	+ )
	80	+ ) {
	81	+ $css_string .= $key . ': ' . $value . '; ';
	82	+ }
	83	+ }
	84	+
	85	+ return $css_string;
	86	+}