mirror of
https://github.com/ezyang/htmlpurifier.git
synced 2024-11-08 14:58:42 +00:00
a7fab00cdd
- Update TODO list - URISchemeRegistry doesn't return a reference for instance anymore, should do the same for other singletons git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1477 48356398-32a2-884e-a903-53898d9a118a
56 lines
1.8 KiB
PHP
56 lines
1.8 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Processes an entire attribute array for corrections needing multiple values.
|
|
*
|
|
* Occasionally, a certain attribute will need to be removed and popped onto
|
|
* another value. Instead of creating a complex return syntax for
|
|
* HTMLPurifier_AttrDef, we just pass the whole attribute array to a
|
|
* specialized object and have that do the special work. That is the
|
|
* family of HTMLPurifier_AttrTransform.
|
|
*
|
|
* An attribute transformation can be assigned to run before or after
|
|
* HTMLPurifier_AttrDef validation. See HTMLPurifier_HTMLDefinition for
|
|
* more details.
|
|
*/
|
|
|
|
abstract class HTMLPurifier_AttrTransform
|
|
{
|
|
|
|
/**
|
|
* Abstract: makes changes to the attributes dependent on multiple values.
|
|
*
|
|
* @param $attr Assoc array of attributes, usually from
|
|
* HTMLPurifier_Token_Tag::$attr
|
|
* @param $config Mandatory HTMLPurifier_Config object.
|
|
* @param $context Mandatory HTMLPurifier_Context object
|
|
* @returns Processed attribute array.
|
|
*/
|
|
abstract public function transform($attr, $config, $context);
|
|
|
|
/**
|
|
* Prepends CSS properties to the style attribute, creating the
|
|
* attribute if it doesn't exist.
|
|
* @param $attr Attribute array to process (passed by reference)
|
|
* @param $css CSS to prepend
|
|
*/
|
|
public function prependCSS(&$attr, $css) {
|
|
$attr['style'] = isset($attr['style']) ? $attr['style'] : '';
|
|
$attr['style'] = $css . $attr['style'];
|
|
}
|
|
|
|
/**
|
|
* Retrieves and removes an attribute
|
|
* @param $attr Attribute array to process (passed by reference)
|
|
* @param $key Key of attribute to confiscate
|
|
*/
|
|
public function confiscateAttr(&$attr, $key) {
|
|
if (!isset($attr[$key])) return null;
|
|
$value = $attr[$key];
|
|
unset($attr[$key]);
|
|
return $value;
|
|
}
|
|
|
|
}
|
|
|