function theme_get_function in Drupal 5
Same name and namespace in other branches
- 4 includes/theme.inc \theme_get_function()
Determine if a theme function exists, and if so return which one was found.
Parameters
$function: The name of the theme function to test.
Return value
The name of the theme function that should be used, or FALSE if no function exists.
2 calls to theme_get_function()
- drupal_render_form in includes/
form.inc - Renders a structured form array into themed HTML.
- theme in includes/
theme.inc - Generate the themed representation of a Drupal object.
File
- includes/
theme.inc, line 187 - The theme system, which controls the output of Drupal.
Code
function theme_get_function($function) {
global $theme, $theme_engine;
// Because theme() is called a lot, calling init_theme() only to have it
// smartly return is a noticeable performance hit. Don't do it.
if (!isset($theme)) {
init_theme();
}
if ($theme != '' && function_exists($theme . '_' . $function)) {
// call theme function
return $theme . '_' . $function;
}
elseif ($theme != '' && isset($theme_engine) && function_exists($theme_engine . '_' . $function)) {
// call engine function
return $theme_engine . '_' . $function;
}
elseif (function_exists('theme_' . $function)) {
// call Drupal function
return 'theme_' . $function;
}
return FALSE;
}