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<?php
/**
* webtrees: online genealogy
* Copyright (C) 2015 webtrees development team
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
namespace Fisharebest\Webtrees;
use Fisharebest\Webtrees\Theme\ThemeInterface;
/**
* Provide access to the current theme.
*/
class Theme {
/** @var ThemeInterface The current theme*/
private static $theme;
/** @var ThemeInterface[] All currently installed themes */
private static $installed_themes;
/**
* Create a list of all themes available on the system, including
* any custom themes.
*
* @return ThemeInterface[]
*/
public static function installedThemes() {
if (self::$installed_themes === null) {
self::$installed_themes = array();
foreach (glob(WT_ROOT . '/themes/*/theme.php') as $theme_path) {
try {
$theme = include $theme_path;
// Themes beginning with an underscore are reserved for special use.
if (substr_compare($theme->themeId(), '_', 0, 1) !== 0) {
self::$installed_themes[] = $theme;
}
} catch (\Exception $ex) {
// Broken theme? Ignore it.
}
}
}
return self::$installed_themes;
}
/**
* An associative array of theme names, for <select> fields, etc.
*
* @return string[]
*/
public static function themeNames() {
$theme_names = array();
foreach (self::installedThemes() as $theme) {
$theme_names[$theme->themeId()] = $theme->themeName();
}
return $theme_names;
}
/**
* The currently active theme
*
* @param ThemeInterface|null $theme
*
* @throws \LogicException
*
* @return ThemeInterface
*/
public static function theme(ThemeInterface $theme = null) {
if ($theme) {
self::$theme = $theme;
} elseif (!self::$theme) {
throw new \LogicException;
}
return self::$theme;
}
}
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