projects / github / wallabag / wallabag.git / blame
| Commit | Line | Data |
|---|---|---|
| d4949327 NL |
1 | <?php\r |
| 2 | \r | |
| 3 | /**\r | |
| 4 | * Transforms FONT tags to the proper form (SPAN with CSS styling)\r | |
| 5 | *\r | |
| 6 | * This transformation takes the three proprietary attributes of FONT and\r | |
| 7 | * transforms them into their corresponding CSS attributes. These are color,\r | |
| 8 | * face, and size.\r | |
| 9 | *\r | |
| 10 | * @note Size is an interesting case because it doesn't map cleanly to CSS.\r | |
| 11 | * Thanks to\r | |
| 12 | * http://style.cleverchimp.com/font_size_intervals/altintervals.html\r | |
| 13 | * for reasonable mappings.\r | |
| 14 | * @warning This doesn't work completely correctly; specifically, this\r | |
| 15 | * TagTransform operates before well-formedness is enforced, so\r | |
| 16 | * the "active formatting elements" algorithm doesn't get applied.\r | |
| 17 | */\r | |
| 18 | class HTMLPurifier_TagTransform_Font extends HTMLPurifier_TagTransform\r | |
| 19 | {\r | |
| 20 | /**\r | |
| 21 | * @type string\r | |
| 22 | */\r | |
| 23 | public $transform_to = 'span';\r | |
| 24 | \r | |
| 25 | /**\r | |
| 26 | * @type array\r | |
| 27 | */\r | |
| 28 | protected $_size_lookup = array(\r | |
| 29 | '0' => 'xx-small',\r | |
| 30 | '1' => 'xx-small',\r | |
| 31 | '2' => 'small',\r | |
| 32 | '3' => 'medium',\r | |
| 33 | '4' => 'large',\r | |
| 34 | '5' => 'x-large',\r | |
| 35 | '6' => 'xx-large',\r | |
| 36 | '7' => '300%',\r | |
| 37 | '-1' => 'smaller',\r | |
| 38 | '-2' => '60%',\r | |
| 39 | '+1' => 'larger',\r | |
| 40 | '+2' => '150%',\r | |
| 41 | '+3' => '200%',\r | |
| 42 | '+4' => '300%'\r | |
| 43 | );\r | |
| 44 | \r | |
| 45 | /**\r | |
| 46 | * @param HTMLPurifier_Token_Tag $tag\r | |
| 47 | * @param HTMLPurifier_Config $config\r | |
| 48 | * @param HTMLPurifier_Context $context\r | |
| 49 | * @return HTMLPurifier_Token_End|string\r | |
| 50 | */\r | |
| 51 | public function transform($tag, $config, $context)\r | |
| 52 | {\r | |
| 53 | if ($tag instanceof HTMLPurifier_Token_End) {\r | |
| 54 | $new_tag = clone $tag;\r | |
| 55 | $new_tag->name = $this->transform_to;\r | |
| 56 | return $new_tag;\r | |
| 57 | }\r | |
| 58 | \r | |
| 59 | $attr = $tag->attr;\r | |
| 60 | $prepend_style = '';\r | |
| 61 | \r | |
| 62 | // handle color transform\r | |
| 63 | if (isset($attr['color'])) {\r | |
| 64 | $prepend_style .= 'color:' . $attr['color'] . ';';\r | |
| 65 | unset($attr['color']);\r | |
| 66 | }\r | |
| 67 | \r | |
| 68 | // handle face transform\r | |
| 69 | if (isset($attr['face'])) {\r | |
| 70 | $prepend_style .= 'font-family:' . $attr['face'] . ';';\r | |
| 71 | unset($attr['face']);\r | |
| 72 | }\r | |
| 73 | \r | |
| 74 | // handle size transform\r | |
| 75 | if (isset($attr['size'])) {\r | |
| 76 | // normalize large numbers\r | |
| 77 | if ($attr['size'] !== '') {\r | |
| 78 | if ($attr['size']{0} == '+' || $attr['size']{0} == '-') {\r | |
| 79 | $size = (int)$attr['size'];\r | |
| 80 | if ($size < -2) {\r | |
| 81 | $attr['size'] = '-2';\r | |
| 82 | }\r | |
| 83 | if ($size > 4) {\r | |
| 84 | $attr['size'] = '+4';\r | |
| 85 | }\r | |
| 86 | } else {\r | |
| 87 | $size = (int)$attr['size'];\r | |
| 88 | if ($size > 7) {\r | |
| 89 | $attr['size'] = '7';\r | |
| 90 | }\r | |
| 91 | }\r | |
| 92 | }\r | |
| 93 | if (isset($this->_size_lookup[$attr['size']])) {\r | |
| 94 | $prepend_style .= 'font-size:' .\r | |
| 95 | $this->_size_lookup[$attr['size']] . ';';\r | |
| 96 | }\r | |
| 97 | unset($attr['size']);\r | |
| 98 | }\r | |
| 99 | \r | |
| 100 | if ($prepend_style) {\r | |
| 101 | $attr['style'] = isset($attr['style']) ?\r | |
| 102 | $prepend_style . $attr['style'] :\r | |
| 103 | $prepend_style;\r | |
| 104 | }\r | |
| 105 | \r | |
| 106 | $new_tag = clone $tag;\r | |
| 107 | $new_tag->name = $this->transform_to;\r | |
| 108 | $new_tag->attr = $attr;\r | |
| 109 | \r | |
| 110 | return $new_tag;\r | |
| 111 | }\r | |
| 112 | }\r | |
| 113 | \r | |
| 114 | // vim: et sw=4 sts=4\r |