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-rw-r--r--library/vendor/HTMLPurifier/AttrDef/CSS/AlphaValue.php34
1 files changed, 34 insertions, 0 deletions
diff --git a/library/vendor/HTMLPurifier/AttrDef/CSS/AlphaValue.php b/library/vendor/HTMLPurifier/AttrDef/CSS/AlphaValue.php
new file mode 100644
index 0000000..af2b83d
--- /dev/null
+++ b/library/vendor/HTMLPurifier/AttrDef/CSS/AlphaValue.php
@@ -0,0 +1,34 @@
+<?php
+
+class HTMLPurifier_AttrDef_CSS_AlphaValue extends HTMLPurifier_AttrDef_CSS_Number
+{
+
+ public function __construct()
+ {
+ parent::__construct(false); // opacity is non-negative, but we will clamp it
+ }
+
+ /**
+ * @param string $number
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return string
+ */
+ public function validate($number, $config, $context)
+ {
+ $result = parent::validate($number, $config, $context);
+ if ($result === false) {
+ return $result;
+ }
+ $float = (float)$result;
+ if ($float < 0.0) {
+ $result = '0';
+ }
+ if ($float > 1.0) {
+ $result = '1';
+ }
+ return $result;
+ }
+}
+
+// vim: et sw=4 sts=4