1: <?php
  2: /**
  3:  * Allow the site viewer to select a localization (language).
  4:  *
  5:  * Only the zp-core and theme gettext() string are localized by this facility.
  6:  *
  7:  * If you want to support image descriptions, etc. in multiple languages you will
  8:  * have to enable the <i>multi-lingual</i> option found next to the language selector on
  9:  * the admin <i>Gallery</i> configuration page. Then you will have to provide appropriate
 10:  * alternate translations for the fields you use. While there is a field for
 11:  * strings for all Zenphoto supported languages you need supply only those you choose.
 12:  * The others language strings will default to your local language.
 13:  *
 14:  * Locale selection may occur in several ways:
 15:  * <ul>
 16:  *  <li>A cookie stored when the user chooses his language</li>
 17:  *  <li>The URI language selection provided by the <i>seo_locale</i> plugin</li>
 18:  *  <li>The <i>subdomain locales</i> option</li>
 19:  * </ul>
 20:  *
 21:  * This plugin applies only to the theme pages--not Admin. The <em>language cookie</i>, if set, will
 22:  * carry over to the admin pages. As will using <i>subdomains</i>.
 23:  *
 24:  * @author Stephen Billard (sbillard)
 25:  * @package plugins
 26:  * @subpackage seo
 27:  */
 28: $plugin_is_filter = 10 | CLASS_PLUGIN;
 29: $plugin_description = gettext("Allows viewers of your site to select the language translation of their choice.");
 30: $plugin_author = "Stephen Billard (sbillard)";
 31: 
 32: $option_interface = 'dynamic_locale';
 33: 
 34: zp_register_filter('theme_head', 'dynamic_locale::dynamic_localeJS');
 35: 
 36: if (getOption('dynamic_locale_subdomain')) {
 37:     define('LOCALE_TYPE', 2);
 38: } else if (extensionEnabled('seo_locale') && MOD_REWRITE) {
 39:     define('LOCALE_TYPE', 1);
 40: } else {
 41:     define('LOCALE_TYPE', 0);
 42: }
 43: 
 44: /**
 45:  * prints a form for selecting a locale
 46:  * The POST handling is by getUserLocale() called in functions.php
 47:  *
 48:  */
 49: function printLanguageSelector($flags = NULL) {
 50:     $localeOption = getOption('locale');
 51:     $languages = generateLanguageList();
 52:     if (isset($_REQUEST['locale'])) {
 53:         $locale = sanitize($_REQUEST['locale']);
 54:         if ($localeOption != $locale) {
 55:             ?>
 56:             <div class="errorbox">
 57:                 <h2>
 58:                     <?php printf(gettext('<em>%s</em> is not available.'), html_encode($locale)); ?>
 59:                     <?php printf(gettext('The locale %s is not supported on your server.'), html_encode($locale)); ?>
 60:                     <br />
 61:                     <?php echo gettext('See the troubleshooting guide on zenphoto.org for details.'); ?>
 62:                 </h2>
 63:             </div>
 64:             <?php
 65:         }
 66:     }
 67:     if (is_null($flags)) {
 68:         $flags = getOption('dynamic_locale_visual');
 69:     }
 70:     if ($flags) {
 71:         asort($languages);
 72:         ?>
 73:         <ul class="flags">
 74:             <?php
 75:             $request = parse_url(getRequestURI());
 76:             $separator = '?';
 77:             if (isset($request['query'])) {
 78:                 $query = explode('&', $request['query']);
 79:                 $uri['query'] = '';
 80:                 foreach ($query as $key => $str) {
 81:                     if (preg_match('/^locale\s*=/', $str)) {
 82:                         unset($query[$key]);
 83:                     }
 84:                 }
 85:                 if (empty($query)) {
 86:                     unset($request['query']);
 87:                 } else {
 88:                     $request['query'] = implode('&', $query);
 89:                     $separator = '&';
 90:                 }
 91:             }
 92:             $uri = $request['path'];
 93:             if (isset($request['query']))
 94:                 $uri .= '?' . $request['query'];
 95:             foreach ($languages as $text => $lang) {
 96:                 ?>
 97:                 <li<?php if ($lang == $localeOption) echo ' class="currentLanguage"'; ?>>
 98:                     <?php
 99:                     switch (LOCALE_TYPE) {
100:                         case 2:
101:                             $path = dynamic_locale::fullHostPath($lang) . html_encode($uri);
102:                             break;
103:                         case 1:
104:                             $path = seo_locale::localePath(false, $lang) . str_replace(WEBPATH, '', html_encode($uri));
105:                             break;
106:                         default:
107:                             $path = $uri . $separator . 'locale=' . $lang;
108:                             break;
109:                     }
110:                     $flag = getLanguageFlag($lang);
111:                     if ($lang != $localeOption) {
112:                         ?>
113:                         <a href="<?php echo $path; ?>" >
114:                             <?php
115:                         }
116:                         ?>
117:                         <img src="<?php echo $flag; ?>" alt="<?php echo $text; ?>" title="<?php echo $text; ?>" />
118:                         <?php
119:                         if ($lang != $localeOption) {
120:                             ?>
121:                         </a>
122:                         <?php
123:                     }
124:                     ?>
125:                 </li>
126:                 <?php
127:             }
128:             ?>
129:         </ul>
130:         <?php
131:     } else {
132:         ?>
133:         <form action="#" method="post">
134:             <input type="hidden" name="oldlocale" value="<?php echo $localeOption; ?>" />
135:             <select id="dynamic-locale" class="languageselect" name="locale" onchange="this.form.submit()">
136:                 <?php
137:                 foreach ($languages as $key => $item) {
138:                     echo '<option class="languageoption" value="' . html_encode($item) . '"';
139:                     if ($item == $localeOption) {
140:                         echo ' selected="selected"';
141:                     }
142:                     echo ' >';
143:                     echo html_encode($key) . "</option>\n";
144:                 }
145:                 ?>
146:             </select>
147:         </form>
148:         <?php
149:     }
150: }
151: 
152: class dynamic_locale {
153: 
154:     function __construct() {
155:         setOptionDefault('dynamic_locale_visual', 0);
156:         setOptionDefault('dynamic_locale_subdomain', 0);
157:     }
158: 
159:     function getOptionsSupported() {
160:         global $_common_locale_type;
161:         $localdesc = '<p>' . gettext('If checked links to the alternative languages will be in the form <code><em>language</em>.domain</code> where <code><em>language</em></code> is the language code, e.g. <code><em>fr</em></code> for French.') . '</p>';
162:         if (!$_common_locale_type) {
163:             $localdesc .= '<p>' . gettext('This requires that you have created the appropriate subdomains pointing to your Zenphoto installation. That is <code>fr.mydomain.com/zenphoto/</code> must point to the same location as <code>mydomain.com/zenphoto/</code>. (Some providers will automatically redirect undefined subdomains to the main domain. If your provider does this, no subdomain creation is needed.)') . '</p>';
164:         }
165:         $options = array(gettext('Use flags')                        => array('key'      => 'dynamic_locale_visual', 'type'  => OPTION_TYPE_CHECKBOX,
166:                                         'order'  => 0,
167:                                         'desc'   => gettext('Checked produces an array of flags. Not checked produces a selector.')),
168:                         gettext('Use subdomains') . '*'  => array('key'          => 'dynamic_locale_subdomain', 'type'       => OPTION_TYPE_CHECKBOX,
169:                                         'order'      => 1,
170:                                         'disabled' => $_common_locale_type,
171:                                         'desc'       => $localdesc)
172:         );
173:         if ($_common_locale_type) {
174:             $options['note'] = array('key'       => 'dynamic_locale_type', 'type'    => OPTION_TYPE_NOTE,
175:                             'order'  => 2,
176:                             'desc'   => '<p class="notebox">' . $_common_locale_type . '</p>');
177:         } else {
178:             $_common_locale_type = gettext('* This option may be set via the <a onclick="gotoName(\'dynamic-locale\');"><em>dynamic-locale</em></a> plugin options.');
179:             $options['note'] = array('key'       => 'dynamic_locale_type',
180:                             'type'   => OPTION_TYPE_NOTE,
181:                             'order'  => 2,
182:                             'desc'   => gettext('<p class="notebox">*<strong>Note:</strong> The setting of this option is shared with other plugins.</p>'));
183:         }
184:         return $options;
185:     }
186: 
187:     static function dynamic_localeJS() {
188:         ?>
189:         <link type="text/css" rel="stylesheet" href="<?php echo WEBPATH . '/' . ZENFOLDER . '/' . PLUGIN_FOLDER; ?>/dynamic-locale/locale.css" />
190:         <?php
191:     }
192: 
193:     static function fullHostPath($lang) {
194:         global $_locale_Subdomains;
195:         $host = $_SERVER['HTTP_HOST'];
196:         $matches = explode('.', $host);
197:         if (validateLocale($matches[0], 'Dynamic Locale')) {
198:             array_shift($matches);
199:             $host = implode('.', $matches);
200:         }
201:         if ($l = $_locale_Subdomains[$lang]) {
202:             $host = $l . '.' . $host;
203:         }
204:         if (SERVER_PROTOCOL == 'https') {
205:             $host = 'https://' . $host;
206:         } else {
207:             $host = 'http://' . $host;
208:         }
209:         return $host;
210:     }
211: 
212: }
213: ?>
214: