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<?php
/**
* ThemeManager class file.
*
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2012 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\base;
/**
* ThemeManager manages the themes for the Web application.
*
* A theme is a collection of view/layout files and resource files
* (e.g. css, image, js files). When a theme is active, {@link CController}
* will look for the specified view/layout under the theme folder first.
* The corresponding view/layout files will be used if the theme provides them.
* Otherwise, the default view/layout files will be used.
*
* By default, each theme is organized as a directory whose name is the theme name.
* All themes are located under the "WebRootPath/themes" directory.
*
* To activate a theme, set the {@link CWebApplication::setTheme theme} property
* to be the name of that theme.
*
* Since a self-contained theme often contains resource files that are made
* Web accessible, please make sure the view/layout files are protected from Web access.
*
* @property array $themeNames List of available theme names.
* @property string $basePath The base path for all themes. Defaults to "WebRootPath/themes".
* @property string $baseUrl The base URL for all themes. Defaults to "/WebRoot/themes".
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class ThemeManager extends ApplicationComponent
{
/**
* default themes base path
*/
const DEFAULT_BASEPATH = 'themes';
/**
* @var string the name of the theme class for representing a theme.
* Defaults to {@link Theme}. This can also be a class name in dot syntax.
*/
public $themeClass = 'Theme';
/**
* @var string the base path containing all themes. Defaults to '@entry/themes'.
*/
public $basePath = '@entry/themes';
/**
* @var string the base URL for all themes. Defaults to "@www/themes".
*/
public $baseUrl = '@www/themes';
/**
* @param string $name name of the theme to be retrieved
* @return Theme the theme retrieved. Null if the theme does not exist.
*/
public function getTheme($name)
{
$themePath = $this->getBasePath() . DIRECTORY_SEPARATOR . $name;
if (is_dir($themePath)) {
$class = Yii::import($this->themeClass, true);
return new $class($name, $themePath, $this->getBaseUrl() . '/' . $name);
} else {
return null;
}
}
/**
* @return array list of available theme names
*/
public function getThemeNames()
{
static $themes;
if ($themes === null) {
$themes = array();
$basePath = $this->getBasePath();
$folder = @opendir($basePath);
while (($file = @readdir($folder)) !== false) {
if ($file !== '.' && $file !== '..' && $file !== '.svn' && $file !== '.gitignore' && is_dir($basePath . DIRECTORY_SEPARATOR . $file)) {
$themes[] = $file;
}
}
closedir($folder);
sort($themes);
}
return $themes;
}
}