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-rw-r--r--library/HTMLPurifier/AttrTransform/BoolToCSS.php36
1 files changed, 36 insertions, 0 deletions
diff --git a/library/HTMLPurifier/AttrTransform/BoolToCSS.php b/library/HTMLPurifier/AttrTransform/BoolToCSS.php
new file mode 100644
index 000000000..51159b671
--- /dev/null
+++ b/library/HTMLPurifier/AttrTransform/BoolToCSS.php
@@ -0,0 +1,36 @@
+<?php
+
+/**
+ * Pre-transform that changes converts a boolean attribute to fixed CSS
+ */
+class HTMLPurifier_AttrTransform_BoolToCSS extends HTMLPurifier_AttrTransform {
+
+ /**
+ * Name of boolean attribute that is trigger
+ */
+ protected $attr;
+
+ /**
+ * CSS declarations to add to style, needs trailing semicolon
+ */
+ protected $css;
+
+ /**
+ * @param $attr string attribute name to convert from
+ * @param $css string CSS declarations to add to style (needs semicolon)
+ */
+ public function __construct($attr, $css) {
+ $this->attr = $attr;
+ $this->css = $css;
+ }
+
+ public function transform($attr, $config, $context) {
+ if (!isset($attr[$this->attr])) return $attr;
+ unset($attr[$this->attr]);
+ $this->prependCSS($attr, $this->css);
+ return $attr;
+ }
+
+}
+
+// vim: et sw=4 sts=4