function _ctools_list_themes

Helper to build a ctools-friendly list of themes capable of providing plugins.

Return value

array A list of themes that can act as plugin providers, sorted parent-first with the active theme placed last.

File

includes/plugins.inc, line 550

Code

function _ctools_list_themes() {
    static $themes;
    if (is_null($themes)) {
        $current = variable_get('theme_default', FALSE);
        $themes = $active = array();
        $all_themes = list_themes();
        foreach ($all_themes as $name => $theme) {
            // Only search from active themes.
            if (empty($theme->status) && $theme->name != $current) {
                continue;
            }
            $active[$name] = $theme;
            // Prior to drupal 6.14, $theme->base_themes does not exist. Build it.
            if (!isset($theme->base_themes) && !empty($theme->base_theme)) {
                $active[$name]->base_themes = ctools_find_base_themes($all_themes, $name);
            }
        }
        // Construct a parent-first list of all themes.
        foreach ($active as $name => $theme) {
            $base_themes = isset($theme->base_themes) ? $theme->base_themes : array();
            $themes = array_merge($themes, $base_themes, array(
                $name => $theme->info['name'],
            ));
        }
        // Put the actual theme info objects into the array.
        foreach (array_keys($themes) as $name) {
            if (isset($all_themes[$name])) {
                $themes[$name] = $all_themes[$name];
            }
        }
        // Make sure the current default theme always gets the last word.
        if ($current_key = array_search($current, array_keys($themes))) {
            $themes += array_splice($themes, $current_key, 1);
        }
    }
    return $themes;
}