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1 <?php |
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2 // $Id: theme.maintenance.inc,v 1.10 2008/01/24 09:42:50 goba Exp $ |
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3 |
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4 /** |
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5 * @file |
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6 * Theming for maintenance pages. |
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7 */ |
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8 |
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9 /** |
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10 * Sets up the theming system for site installs, updates and when the site is |
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11 * in off-line mode. It also applies when the database is unavailable. |
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12 * |
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13 * Minnelli is always used for the initial install and update operations. In |
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14 * other cases, "settings.php" must have a "maintenance_theme" key set for the |
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15 * $conf variable in order to change the maintenance theme. |
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16 */ |
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17 function _drupal_maintenance_theme() { |
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18 global $theme, $theme_key; |
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19 |
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20 // If $theme is already set, assume the others are set too, and do nothing. |
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21 if (isset($theme)) { |
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22 return; |
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23 } |
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24 |
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25 require_once './includes/path.inc'; |
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26 require_once './includes/theme.inc'; |
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27 require_once './includes/common.inc'; |
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28 require_once './includes/unicode.inc'; |
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29 require_once './includes/file.inc'; |
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30 require_once './includes/module.inc'; |
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31 require_once './includes/database.inc'; |
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32 unicode_check(); |
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33 |
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34 // Install and update pages are treated differently to prevent theming overrides. |
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35 if (defined('MAINTENANCE_MODE') && (MAINTENANCE_MODE == 'install' || MAINTENANCE_MODE == 'update')) { |
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36 $theme = 'minnelli'; |
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37 } |
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38 else { |
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39 // Load module basics (needed for hook invokes). |
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40 $module_list['system']['filename'] = 'modules/system/system.module'; |
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41 $module_list['filter']['filename'] = 'modules/filter/filter.module'; |
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42 module_list(TRUE, FALSE, FALSE, $module_list); |
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43 drupal_load('module', 'system'); |
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44 drupal_load('module', 'filter'); |
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45 |
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46 $theme = variable_get('maintenance_theme', 'minnelli'); |
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47 } |
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48 |
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49 $themes = list_themes(); |
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50 |
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51 // Store the identifier for retrieving theme settings with. |
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52 $theme_key = $theme; |
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53 |
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54 // Find all our ancestor themes and put them in an array. |
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55 $base_theme = array(); |
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56 $ancestor = $theme; |
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57 while ($ancestor && isset($themes[$ancestor]->base_theme)) { |
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58 $base_theme[] = $new_base_theme = $themes[$themes[$ancestor]->base_theme]; |
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59 $ancestor = $themes[$ancestor]->base_theme; |
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60 } |
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61 _init_theme($themes[$theme], array_reverse($base_theme), '_theme_load_offline_registry'); |
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62 |
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63 // These are usually added from system_init() -except maintenance.css. |
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64 // When the database is inactive it's not called so we add it here. |
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65 drupal_add_css(drupal_get_path('module', 'system') .'/defaults.css', 'module'); |
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66 drupal_add_css(drupal_get_path('module', 'system') .'/system.css', 'module'); |
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67 drupal_add_css(drupal_get_path('module', 'system') .'/system-menus.css', 'module'); |
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68 drupal_add_css(drupal_get_path('module', 'system') .'/maintenance.css', 'module'); |
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69 } |
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70 |
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71 /** |
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72 * This builds the registry when the site needs to bypass any database calls. |
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73 */ |
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74 function _theme_load_offline_registry($theme, $base_theme = NULL, $theme_engine = NULL) { |
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75 $registry = _theme_build_registry($theme, $base_theme, $theme_engine); |
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76 _theme_set_registry($registry); |
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77 } |
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78 |
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79 /** |
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80 * Return a themed list of maintenance tasks to perform. |
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81 * |
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82 * @ingroup themeable |
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83 */ |
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84 function theme_task_list($items, $active = NULL) { |
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85 $done = isset($items[$active]) || $active == NULL; |
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86 $output = '<ol class="task-list">'; |
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87 foreach ($items as $k => $item) { |
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88 if ($active == $k) { |
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89 $class = 'active'; |
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90 $done = false; |
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91 } |
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92 else { |
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93 $class = $done ? 'done' : ''; |
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94 } |
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95 $output .= '<li class="'. $class .'">'. $item .'</li>'; |
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96 } |
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97 $output .= '</ol>'; |
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98 return $output; |
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99 } |
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100 |
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101 /** |
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102 * Generate a themed installation page. |
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103 * |
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104 * Note: this function is not themeable. |
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105 * |
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106 * @param $content |
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107 * The page content to show. |
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108 */ |
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109 function theme_install_page($content) { |
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110 drupal_set_header('Content-Type: text/html; charset=utf-8'); |
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111 |
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112 // Assign content. |
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113 $variables['content'] = $content; |
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114 // Delay setting the message variable so it can be processed below. |
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115 $variables['show_messages'] = FALSE; |
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116 // The maintenance preprocess function is recycled here. |
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117 template_preprocess_maintenance_page($variables); |
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118 |
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119 // Special handling of error messages |
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120 $messages = drupal_set_message(); |
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121 if (isset($messages['error'])) { |
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122 $title = count($messages['error']) > 1 ? st('The following errors must be resolved before you can continue the installation process') : st('The following error must be resolved before you can continue the installation process'); |
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123 $variables['messages'] .= '<h3>'. $title .':</h3>'; |
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124 $variables['messages'] .= theme('status_messages', 'error'); |
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125 $variables['content'] .= '<p>'. st('Please check the error messages and <a href="!url">try again</a>.', array('!url' => request_uri())) .'</p>'; |
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126 } |
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127 |
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128 // Special handling of warning messages |
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129 if (isset($messages['warning'])) { |
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130 $title = count($messages['warning']) > 1 ? st('The following installation warnings should be carefully reviewed') : st('The following installation warning should be carefully reviewed'); |
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131 $variables['messages'] .= '<h4>'. $title .':</h4>'; |
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132 $variables['messages'] .= theme('status_messages', 'warning'); |
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133 } |
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134 |
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135 // Special handling of status messages |
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136 if (isset($messages['status'])) { |
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137 $title = count($messages['status']) > 1 ? st('The following installation warnings should be carefully reviewed, but in most cases may be safely ignored') : st('The following installation warning should be carefully reviewed, but in most cases may be safely ignored'); |
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138 $variables['messages'] .= '<h4>'. $title .':</h4>'; |
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139 $variables['messages'] .= theme('status_messages', 'status'); |
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140 } |
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141 |
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142 // This was called as a theme hook (not template), so we need to |
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143 // fix path_to_theme() for the template, to point at the actual |
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144 // theme rather than system module as owner of the hook. |
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145 global $theme_path; |
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146 $theme_path = 'themes/garland'; |
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147 |
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148 return theme_render_template('themes/garland/maintenance-page.tpl.php', $variables); |
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149 } |
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150 |
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151 /** |
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152 * Generate a themed update page. |
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153 * |
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154 * Note: this function is not themeable. |
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155 * |
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156 * @param $content |
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157 * The page content to show. |
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158 * @param $show_messages |
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159 * Whether to output status and error messages. |
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160 * FALSE can be useful to postpone the messages to a subsequent page. |
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161 */ |
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162 function theme_update_page($content, $show_messages = TRUE) { |
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163 // Set required headers. |
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164 drupal_set_header('Content-Type: text/html; charset=utf-8'); |
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165 |
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166 // Assign content and show message flag. |
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167 $variables['content'] = $content; |
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168 $variables['show_messages'] = $show_messages; |
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169 // The maintenance preprocess function is recycled here. |
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170 template_preprocess_maintenance_page($variables); |
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171 |
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172 // Special handling of warning messages. |
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173 $messages = drupal_set_message(); |
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174 if (isset($messages['warning'])) { |
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175 $title = count($messages['warning']) > 1 ? 'The following update warnings should be carefully reviewed before continuing' : 'The following update warning should be carefully reviewed before continuing'; |
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176 $variables['messages'] .= '<h4>'. $title .':</h4>'; |
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177 $variables['messages'] .= theme('status_messages', 'warning'); |
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178 } |
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179 |
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180 // This was called as a theme hook (not template), so we need to |
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181 // fix path_to_theme() for the template, to point at the actual |
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182 // theme rather than system module as owner of the hook. |
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183 global $theme_path; |
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184 $theme_path = 'themes/garland'; |
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185 |
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186 return theme_render_template('themes/garland/maintenance-page.tpl.php', $variables); |
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187 } |
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188 |
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189 /** |
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190 * The variables generated here is a mirror of template_preprocess_page(). |
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191 * This preprocessor will run it's course when theme_maintenance_page() is |
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192 * invoked. It is also used in theme_install_page() and theme_update_page() to |
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193 * keep all the variables consistent. |
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194 * |
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195 * An alternate template file of "maintenance-page-offline.tpl.php" can be |
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196 * used when the database is offline to hide errors and completely replace the |
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197 * content. |
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198 * |
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199 * The $variables array contains the following arguments: |
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200 * - $content |
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201 * - $show_blocks |
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202 * |
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203 * @see maintenance-page.tpl.php |
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204 */ |
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205 function template_preprocess_maintenance_page(&$variables) { |
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206 // Add favicon |
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207 if (theme_get_setting('toggle_favicon')) { |
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208 drupal_set_html_head('<link rel="shortcut icon" href="'. check_url(theme_get_setting('favicon')) .'" type="image/x-icon" />'); |
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209 } |
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210 |
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211 global $theme; |
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212 // Retrieve the theme data to list all available regions. |
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213 $theme_data = _system_theme_data(); |
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214 $regions = $theme_data[$theme]->info['regions']; |
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215 |
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216 // Get all region content set with drupal_set_content(). |
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217 foreach (array_keys($regions) as $region) { |
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218 // Assign region to a region variable. |
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219 $region_content = drupal_get_content($region); |
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220 isset($variables[$region]) ? $variables[$region] .= $region_content : $variables[$region] = $region_content; |
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221 } |
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222 |
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223 // Setup layout variable. |
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224 $variables['layout'] = 'none'; |
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225 if (!empty($variables['left'])) { |
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226 $variables['layout'] = 'left'; |
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227 } |
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228 if (!empty($variables['right'])) { |
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229 $variables['layout'] = ($variables['layout'] == 'left') ? 'both' : 'right'; |
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230 } |
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231 |
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232 // Construct page title |
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233 if (drupal_get_title()) { |
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234 $head_title = array(strip_tags(drupal_get_title()), variable_get('site_name', 'Drupal')); |
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235 } |
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236 else { |
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237 $head_title = array(variable_get('site_name', 'Drupal')); |
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238 if (variable_get('site_slogan', '')) { |
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239 $head_title[] = variable_get('site_slogan', ''); |
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240 } |
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241 } |
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242 $variables['head_title'] = implode(' | ', $head_title); |
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243 $variables['base_path'] = base_path(); |
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244 $variables['breadcrumb'] = ''; |
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245 $variables['feed_icons'] = ''; |
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246 $variables['footer_message'] = filter_xss_admin(variable_get('site_footer', FALSE)); |
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247 $variables['head'] = drupal_get_html_head(); |
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248 $variables['help'] = ''; |
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249 $variables['language'] = $GLOBALS['language']; |
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250 $variables['language']->dir = $GLOBALS['language']->direction ? 'rtl' : 'ltr'; |
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251 $variables['logo'] = theme_get_setting('logo'); |
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252 $variables['messages'] = $variables['show_messages'] ? theme('status_messages') : ''; |
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253 $variables['mission'] = ''; |
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254 $variables['primary_links'] = array(); |
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255 $variables['secondary_links'] = array(); |
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256 $variables['search_box'] = ''; |
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257 $variables['site_name'] = (theme_get_setting('toggle_name') ? variable_get('site_name', 'Drupal') : ''); |
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258 $variables['site_slogan'] = (theme_get_setting('toggle_slogan') ? variable_get('site_slogan', '') : ''); |
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259 $variables['css'] = drupal_add_css(); |
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260 $variables['styles'] = drupal_get_css(); |
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261 $variables['scripts'] = drupal_get_js(); |
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262 $variables['tabs'] = ''; |
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263 $variables['title'] = drupal_get_title(); |
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264 $variables['closure'] = ''; |
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265 |
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266 // Compile a list of classes that are going to be applied to the body element. |
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267 $body_classes = array(); |
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268 $body_classes[] = 'in-maintenance'; |
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269 if (isset($variables['db_is_active']) && !$variables['db_is_active']) { |
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270 $body_classes[] = 'db-offline'; |
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271 } |
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272 if ($variables['layout'] == 'both') { |
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273 $body_classes[] = 'two-sidebars'; |
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274 } |
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275 elseif ($variables['layout'] == 'none') { |
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276 $body_classes[] = 'no-sidebars'; |
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277 } |
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278 else { |
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279 $body_classes[] = 'one-sidebar sidebar-'. $variables['layout']; |
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280 } |
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281 $variables['body_classes'] = implode(' ', $body_classes); |
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282 |
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283 // Dead databases will show error messages so supplying this template will |
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284 // allow themers to override the page and the content completely. |
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285 if (isset($variables['db_is_active']) && !$variables['db_is_active']) { |
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286 $variables['template_file'] = 'maintenance-page-offline'; |
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287 } |
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288 } |
