XOOPS 2.5.6  Final
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StrictBlockquote.php
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1 <?php
2 
7 {
8  protected $real_elements;
9  protected $fake_elements;
10  public $allow_empty = true;
11  public $type = 'strictblockquote';
12  protected $init = false;
13 
18  public function getAllowedElements($config) {
19  $this->init($config);
20  return $this->fake_elements;
21  }
22 
23  public function validateChildren($tokens_of_children, $config, $context) {
24 
25  $this->init($config);
26 
27  // trick the parent class into thinking it allows more
28  $this->elements = $this->fake_elements;
29  $result = parent::validateChildren($tokens_of_children, $config, $context);
30  $this->elements = $this->real_elements;
31 
32  if ($result === false) return array();
33  if ($result === true) $result = $tokens_of_children;
34 
35  $def = $config->getHTMLDefinition();
36  $block_wrap_start = new HTMLPurifier_Token_Start($def->info_block_wrapper);
37  $block_wrap_end = new HTMLPurifier_Token_End( $def->info_block_wrapper);
38  $is_inline = false;
39  $depth = 0;
40  $ret = array();
41 
42  // assuming that there are no comment tokens
43  foreach ($result as $i => $token) {
44  $token = $result[$i];
45  // ifs are nested for readability
46  if (!$is_inline) {
47  if (!$depth) {
48  if (
49  ($token instanceof HTMLPurifier_Token_Text && !$token->is_whitespace) ||
50  (!$token instanceof HTMLPurifier_Token_Text && !isset($this->elements[$token->name]))
51  ) {
52  $is_inline = true;
53  $ret[] = $block_wrap_start;
54  }
55  }
56  } else {
57  if (!$depth) {
58  // starting tokens have been inline text / empty
59  if ($token instanceof HTMLPurifier_Token_Start || $token instanceof HTMLPurifier_Token_Empty) {
60  if (isset($this->elements[$token->name])) {
61  // ended
62  $ret[] = $block_wrap_end;
63  $is_inline = false;
64  }
65  }
66  }
67  }
68  $ret[] = $token;
69  if ($token instanceof HTMLPurifier_Token_Start) $depth++;
70  if ($token instanceof HTMLPurifier_Token_End) $depth--;
71  }
72  if ($is_inline) $ret[] = $block_wrap_end;
73  return $ret;
74  }
75 
76  private function init($config) {
77  if (!$this->init) {
78  $def = $config->getHTMLDefinition();
79  // allow all inline elements
80  $this->real_elements = $this->elements;
81  $this->fake_elements = $def->info_content_sets['Flow'];
82  $this->fake_elements['#PCDATA'] = true;
83  $this->init = true;
84  }
85  }
86 }
87 
88 // vim: et sw=4 sts=4