theme.maintenance.inc 9.63 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
<?php
// $Id$

/**
 * @file
 * Theming for maintenance pages.
 */

/**
 * Sets up the theming system for site installs, updates and when the site is
 * in off-line mode. It also applies when the database is unavailable.
 *
 * Minnelli is always used for the initial install and update operations. In
 * other cases, "settings.php" must have a "maintenance_theme" key set for the
 * $conf variable in order to change the maintenance theme.
 */
function _drupal_maintenance_theme() {
  global $theme, $theme_key;

  // If $theme is already set, assume the others are set too, and do nothing.
  if (isset($theme)) {
    return;
  }

  require_once './includes/path.inc';
  require_once './includes/theme.inc';
  require_once './includes/common.inc';
  require_once './includes/unicode.inc';
  require_once './includes/file.inc';
  require_once './includes/module.inc';
  require_once './includes/database.inc';
  unicode_check();

  // Install and update pages are treated differently to prevent theming overrides.
  if (defined('MAINTENANCE_MODE') && (MAINTENANCE_MODE == 'install' || MAINTENANCE_MODE == 'update')) {
    $theme = 'minnelli';
  }
  else {
39
40
41
42
43
44
45
    // Load module basics (needed for hook invokes).
    $module_list['system']['filename'] = 'modules/system/system.module';
    $module_list['filter']['filename'] = 'modules/filter/filter.module';
    module_list(TRUE, FALSE, FALSE, $module_list);
    drupal_load('module', 'system');
    drupal_load('module', 'filter');

46
47
48
    $theme = variable_get('maintenance_theme', 'minnelli');
  }

49
50
  $themes = list_themes();

51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
  // Store the identifier for retrieving theme settings with.
  $theme_key = $theme;

  // Find all our ancestor themes and put them in an array.
  $base_theme = array();
  $ancestor = $theme;
  while ($ancestor && isset($themes[$ancestor]->base_theme)) {
    $base_theme[] = $new_base_theme = $themes[$themes[$ancestor]->base_theme];
    $ancestor = $themes[$ancestor]->base_theme;
  }
  _init_theme($themes[$theme], array_reverse($base_theme), '_theme_load_offline_registry');

  // These are usually added from system_init() -except maintenance.css.
  // When the database is inactive it's not called so we add it here.
  drupal_add_css(drupal_get_path('module', 'system') .'/defaults.css', 'module');
  drupal_add_css(drupal_get_path('module', 'system') .'/system.css', 'module');
  drupal_add_css(drupal_get_path('module', 'system') .'/system-menus.css', 'module');
  drupal_add_css(drupal_get_path('module', 'system') .'/maintenance.css', 'module');
}

/**
 * This builds the registry when the site needs to bypass any database calls.
 */
function _theme_load_offline_registry($theme, $base_theme = NULL, $theme_engine = NULL) {
  $registry = _theme_build_registry($theme, $base_theme, $theme_engine);
  _theme_set_registry($registry);
}

/**
 * Return a themed list of maintenance tasks to perform.
81
 *
82
 * @ingroup themeable
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
 */
function theme_task_list($items, $active = NULL) {
  $done = isset($items[$active]) || $active == NULL;
  $output = '<ol class="task-list">';
  foreach ($items as $k => $item) {
    if ($active == $k) {
      $class = 'active';
      $done = false;
    }
    else {
      $class = $done ? 'done' : '';
    }
    $output .= '<li class="'. $class .'">'. $item .'</li>';
  }
  $output .= '</ol>';
  return $output;
}

/**
 * Generate a themed installation page.
 *
 * Note: this function is not themeable.
 *
 * @param $content
 *   The page content to show.
 */
function theme_install_page($content) {
  drupal_set_header('Content-Type: text/html; charset=utf-8');

  // Assign content.
  $variables['content'] = $content;
  // Delay setting the message variable so it can be processed below.
  $variables['show_messages'] = FALSE;
  // The maintenance preprocess function is recycled here.
  template_preprocess_maintenance_page($variables);

  // Special handling of error messages
  $messages = drupal_set_message();
  if (isset($messages['error'])) {
    $title = count($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');
    $variables['messages'] .= '<h3>'. $title .':</h3>';
    $variables['messages'] .= theme('status_messages', 'error');
    $variables['content'] .= '<p>'. st('Please check the error messages and <a href="!url">try again</a>.', array('!url' => request_uri())) .'</p>';
  }

  // Special handling of status messages
  if (isset($messages['status'])) {
    $warnings = count($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');
    $variables['messages'] .= '<h4>'. $title .':</h4>';
    $variables['messages'] .= theme('status_messages', 'status');
  }

  return theme_render_template('themes/garland/maintenance-page.tpl.php', $variables);
}

/**
 * Generate a themed update page.
 *
 * Note: this function is not themeable.
 *
 * @param $content
 *   The page content to show.
 * @param $show_messages
 *   Whether to output status and error messages.
 *   FALSE can be useful to postpone the messages to a subsequent page.
 */
function theme_update_page($content, $show_messages = TRUE) {
  // Set required headers.
  drupal_set_header('Content-Type: text/html; charset=utf-8');

  // Assign content and show message flag.
  $variables['content'] = $content;
  $variables['show_messages'] = $show_messages;
  // The maintenance preprocess function is recycled here.
  template_preprocess_maintenance_page($variables);

  return theme_render_template('themes/garland/maintenance-page.tpl.php', $variables);
}

/**
 * The variables generated here is a mirror of template_preprocess_page().
 * This preprocessor will run it's course when theme_maintenance_page() is
 * invoked. It is also used in theme_install_page() and theme_update_page() to
 * keep all the variables consistent.
 *
 * An alternate template file of "maintenance-page-offline.tpl.php" can be
 * used when the database is offline to hide errors and completely replace the
 * content.
 *
 * The $variables array contains the following arguments:
 * - $content
 * - $show_blocks
 *
 * @see maintenance-page.tpl.php
 */
function template_preprocess_maintenance_page(&$variables) {
  // Add favicon
  if (theme_get_setting('toggle_favicon')) {
    drupal_set_html_head('<link rel="shortcut icon" href="'. check_url(theme_get_setting('favicon')) .'" type="image/x-icon" />');
  }

  global $theme;
  // Retrieve the theme data to list all available regions.
  $theme_data = _system_theme_data();
  $regions = $theme_data[$theme]->info['regions'];

  // Get all region content set with drupal_set_content().
  foreach (array_keys($regions) as $region) {
    // Assign region to a region variable.
    $region_content = drupal_get_content($region);
    isset($variables[$region]) ? $variables[$region] .= $region_content : $variables[$region] = $region_content;
  }

  // Setup layout variable.
  $variables['layout'] = 'none';
  if (!empty($variables['left'])) {
    $variables['layout'] = 'left';
  }
  if (!empty($variables['right'])) {
    $variables['layout'] = ($variables['layout'] == 'left') ? 'both' : 'right';
  }

  // Construct page title
  if (drupal_get_title()) {
    $head_title = array(strip_tags(drupal_get_title()), variable_get('site_name', 'Drupal'));
  }
  else {
    $head_title = array(variable_get('site_name', 'Drupal'));
    if (variable_get('site_slogan', '')) {
      $head_title[] = variable_get('site_slogan', '');
    }
  }
  $variables['head_title']        = implode(' | ', $head_title);
  $variables['base_path']         = base_path();
  $variables['breadcrumb']        = '';
  $variables['feed_icons']        = '';
  $variables['footer_message']    = filter_xss_admin(variable_get('site_footer', FALSE));
  $variables['head']              = drupal_get_html_head();
  $variables['help']              = '';
  $variables['language']          = $GLOBALS['language'];
  $variables['logo']              = theme_get_setting('logo');
  $variables['messages']          = $variables['show_messages'] ? theme('status_messages') : '';
  $variables['mission']           = '';
  $variables['primary_links']     = array();
  $variables['secondary_links']   = array();
  $variables['search_box']        = '';
  $variables['site_name']         = (theme_get_setting('toggle_name') ? variable_get('site_name', 'Drupal') : '');
  $variables['site_slogan']       = (theme_get_setting('toggle_slogan') ? variable_get('site_slogan', '') : '');
  $variables['css']               = drupal_add_css();
  $variables['styles']            = drupal_get_css();
  $variables['scripts']           = drupal_get_js();
  $variables['tabs']              = '';
  $variables['title']             = drupal_get_title();
  $variables['closure']           = '';

  // Compile a list of classes that are going to be applied to the body element.
  $body_classes = array();
  $body_classes[] = 'in-maintenance';
  if (isset($variables['db_is_active']) && !$variables['db_is_active']) {
    $body_classes[] = 'db-offline';
  }
  if ($variables['layout'] == 'both') {
    $body_classes[] = 'two-sidebars';
  }
  elseif ($variables['layout'] == 'none') {
    $body_classes[] = 'no-sidebars';
  }
  else {
    $body_classes[] = 'one-sidebar sidebar-'. $variables['layout'];
  }
  $variables['body_classes'] = implode(' ', $body_classes);

  // Dead databases will show error messages so supplying this template will
  // allow themers to override the page and the content completely.
  if (isset($variables['db_is_active']) && !$variables['db_is_active']) {
    $variables['template_file'] = 'maintenance-page-offline';
  }
}