1 system.module | _system_rebuild_theme_data() |
Helper function to scan and collect theme .info data and their engines.
Return value
An associative array of themes information.:
File
- core/
modules/ system/ system.module, line 3184 - Configuration system that lets administrators modify the workings of the site.
Code
function _system_rebuild_theme_data() {
// Find themes
$themes = backdrop_system_listing('/^' . BACKDROP_PHP_FUNCTION_PATTERN . '\.info$/', 'themes');
// Allow modules to add further themes.
if ($module_themes = module_invoke_all('system_theme_info')) {
foreach ($module_themes as $name => $uri) {
// @see file_scan_directory()
$themes[$name] = (object) array(
'uri' => $uri,
'filename' => pathinfo($uri, PATHINFO_FILENAME),
'name' => $name,
);
}
}
// Find theme engines
$engines = backdrop_system_listing('/^' . BACKDROP_PHP_FUNCTION_PATTERN . '\.engine$/', 'themes/engines');
// Set defaults for theme info.
$defaults = array(
'engine' => 'phptemplate',
'description' => '',
'screenshot' => 'screenshot.png',
'php' => BACKDROP_MINIMUM_PHP,
'stylesheets' => array(),
'scripts' => array(),
);
$sub_themes = array();
// Read info files for each theme
foreach ($themes as $key => $theme) {
$themes[$key]->filename = $theme->uri;
$themes[$key]->info = backdrop_parse_info_file($theme->uri) + $defaults;
// Skip modules or layouts that have been placed in the wrong directory.
if (isset($themes[$key]->info['type']) && $themes[$key]->info['type'] != 'theme') {
unset($themes[$key]);
continue;
}
// The "name" key is required, but to avoid a fatal error in the menu system
// we set a reasonable default if it is not provided.
$themes[$key]->info += array('name' => $key);
// Add the info file modification time, so it becomes available for
// contributed modules to use for ordering theme lists.
$themes[$key]->info['mtime'] = filemtime($theme->uri);
// Invoke hook_system_info_alter() to give installed modules a chance to
// modify the data in the .info files if necessary.
$type = 'theme';
backdrop_alter('system_info', $themes[$key]->info, $themes[$key], $type);
if (!empty($themes[$key]->info['base theme'])) {
$sub_themes[] = $key;
}
if ($themes[$key]->info['engine'] == 'theme') {
$filename = dirname($themes[$key]->uri) . '/' . $themes[$key]->name . '.theme';
if (file_exists($filename)) {
$themes[$key]->owner = $filename;
$themes[$key]->prefix = $key;
}
}
else {
$engine = $themes[$key]->info['engine'];
if (isset($engines[$engine])) {
$themes[$key]->owner = $engines[$engine]->uri;
$themes[$key]->prefix = $engines[$engine]->name;
$themes[$key]->template = TRUE;
}
}
// Prefix stylesheets and scripts with module path.
$path = dirname($theme->uri);
$theme->info['stylesheets'] = _system_info_add_path($theme->info['stylesheets'], $path);
$theme->info['scripts'] = _system_info_add_path($theme->info['scripts'], $path);
// Give the screenshot proper path information.
if (!empty($themes[$key]->info['screenshot'])) {
$themes[$key]->info['screenshot'] = $path . '/' . $themes[$key]->info['screenshot'];
}
}
// Now that we've established all our base themes, go back and fill in data
// for subthemes.
foreach ($sub_themes as $key) {
$themes[$key]->base_themes = backdrop_find_base_themes($themes, $key);
// Don't proceed if there was a problem with the root base theme.
if (!current($themes[$key]->base_themes)) {
continue;
}
$base_key = key($themes[$key]->base_themes);
foreach (array_keys($themes[$key]->base_themes) as $base_theme) {
$themes[$base_theme]->sub_themes[$key] = $themes[$key]->info['name'];
}
// Copy the 'owner' and 'engine' over if the top level theme uses a theme
// engine.
if (isset($themes[$base_key]->owner)) {
if (isset($themes[$base_key]->info['engine'])) {
$themes[$key]->info['engine'] = $themes[$base_key]->info['engine'];
$themes[$key]->owner = $themes[$base_key]->owner;
$themes[$key]->prefix = $themes[$base_key]->prefix;
}
else {
$themes[$key]->prefix = $key;
}
}
}
return $themes;
}