Содержимое файла | Последнее изменение | Открыть журнал | RSS
Редакция | Автор | № строки | Строка |
---|---|---|---|
304 | alex-w | 1 | <?php |
2 | /** |
||
3 | * Smarty plugin |
||
4 | * |
||
5 | * @package Smarty |
||
6 | * @subpackage PluginsFunction |
||
7 | */ |
||
8 | |||
9 | /** |
||
10 | * Smarty {html_image} function plugin |
||
11 | * |
||
12 | * Type: function<br> |
||
13 | * Name: html_image<br> |
||
14 | * Date: Feb 24, 2003<br> |
||
15 | * Purpose: format HTML tags for the image<br> |
||
16 | * Examples: {html_image file="/images/masthead.gif"} |
||
17 | * Output: <img src="/images/masthead.gif" width=400 height=23> |
||
18 | * |
||
19 | * @link http://smarty.php.net/manual/en/language.function.html.image.php {html_image} |
||
20 | (Smarty online manual) |
||
21 | * @author Monte Ohrt <monte at ohrt dot com> |
||
22 | * @author credits to Duda <duda@big.hu> |
||
23 | * @version 1.0 |
||
24 | * @param array $params parameters |
||
25 | * Input:<br> |
||
26 | * - file = file (and path) of image (required) |
||
27 | * - height = image height (optional, default actual height) |
||
28 | * - width = image width (optional, default actual width) |
||
29 | * - basedir = base directory for absolute paths, default |
||
30 | * is environment variable DOCUMENT_ROOT |
||
31 | * - path_prefix = prefix for path output (optional, default empty) |
||
32 | * @param object $smarty Smarty object |
||
33 | * @param object $template template object |
||
34 | * @return string |
||
35 | * @uses smarty_function_escape_special_chars() |
||
36 | */ |
||
37 | function smarty_function_html_image($params, $smarty, $template) |
||
38 | { |
||
39 | require_once(SMARTY_PLUGINS_DIR . 'shared.escape_special_chars.php'); |
||
40 | //$smarty->loadPlugin('Smarty_shared_escape_special_chars'); |
||
41 | |||
42 | $alt = ''; |
||
43 | $file = ''; |
||
44 | $height = ''; |
||
45 | $width = ''; |
||
46 | $extra = ''; |
||
47 | $prefix = ''; |
||
48 | $suffix = ''; |
||
49 | $path_prefix = ''; |
||
50 | $server_vars = ($smarty->request_use_auto_globals) ? $_SERVER : $GLOBALS['HTTP_SERVER_VARS']; |
||
51 | $basedir = isset($server_vars['DOCUMENT_ROOT']) ? $server_vars['DOCUMENT_ROOT'] : ''; |
||
52 | foreach($params as $_key => $_val) { |
||
53 | switch ($_key) { |
||
54 | case 'file': |
||
55 | case 'height': |
||
56 | case 'width': |
||
57 | case 'dpi': |
||
58 | case 'path_prefix': |
||
59 | case 'basedir': |
||
60 | $$_key = $_val; |
||
61 | break; |
||
62 | |||
63 | case 'alt': |
||
64 | if (!is_array($_val)) { |
||
65 | $$_key = smarty_function_escape_special_chars($_val); |
||
66 | } else { |
||
67 | throw new Exception ("html_image: extra attribute '$_key' cannot be an array", E_USER_NOTICE); |
||
68 | } |
||
69 | break; |
||
70 | |||
71 | case 'link': |
||
72 | case 'href': |
||
73 | $prefix = '<a href="' . $_val . '">'; |
||
74 | $suffix = '</a>'; |
||
75 | break; |
||
76 | |||
77 | default: |
||
78 | if (!is_array($_val)) { |
||
79 | $extra .= ' ' . $_key . '="' . smarty_function_escape_special_chars($_val) . '"'; |
||
80 | } else { |
||
81 | throw new Exception ("html_image: extra attribute '$_key' cannot be an array", E_USER_NOTICE); |
||
82 | } |
||
83 | break; |
||
84 | } |
||
85 | } |
||
86 | |||
87 | if (empty($file)) { |
||
88 | throw new Exception ("html_image: missing 'file' parameter", E_USER_NOTICE); |
||
89 | return; |
||
90 | } |
||
91 | |||
92 | if (substr($file, 0, 1) == '/') { |
||
93 | $_image_path = $basedir . $file; |
||
94 | } else { |
||
95 | $_image_path = $file; |
||
96 | } |
||
97 | |||
98 | if (!isset($params['width']) || !isset($params['height'])) { |
||
99 | if (!$_image_data = @getimagesize($_image_path)) { |
||
100 | if (!file_exists($_image_path)) { |
||
101 | throw new Exception ("html_image: unable to find '$_image_path'", E_USER_NOTICE); |
||
102 | return; |
||
103 | } else if (!is_readable($_image_path)) { |
||
104 | throw new Exception ("html_image: unable to read '$_image_path'", E_USER_NOTICE); |
||
105 | return; |
||
106 | } else { |
||
107 | throw new Exception ("html_image: '$_image_path' is not a valid image file", E_USER_NOTICE); |
||
108 | return; |
||
109 | } |
||
110 | } |
||
111 | if ($template->security) { |
||
112 | if (!$smarty->security_handler->isTrustedResourceDir($_image_path)) { |
||
113 | return; |
||
114 | } |
||
115 | } |
||
116 | |||
117 | if (!isset($params['width'])) { |
||
118 | $width = $_image_data[0]; |
||
119 | } |
||
120 | if (!isset($params['height'])) { |
||
121 | $height = $_image_data[1]; |
||
122 | } |
||
123 | } |
||
124 | |||
125 | if (isset($params['dpi'])) { |
||
126 | if (strstr($server_vars['HTTP_USER_AGENT'], 'Mac')) { |
||
127 | $dpi_default = 72; |
||
128 | } else { |
||
129 | $dpi_default = 96; |
||
130 | } |
||
131 | $_resize = $dpi_default / $params['dpi']; |
||
132 | $width = round($width * $_resize); |
||
133 | $height = round($height * $_resize); |
||
134 | } |
||
135 | |||
136 | return $prefix . '<img src="' . $path_prefix . $file . '" alt="' . $alt . '" width="' . $width . '" height="' . $height . '"' . $extra . ' />' . $suffix; |
||
137 | } |
||
138 | |||
139 | ?> |