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Theme.php
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Theme.php
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<?php
namespace OOUI;
/**
* Theme logic.
*
* @abstract
*/
abstract class Theme {
/* Properties */
/** @var self|null */
private static $singleton;
/* Static Methods */
/**
* @param Theme|null $theme Theme to use throughout the application
*/
public static function setSingleton( ?Theme $theme = null ) {
self::$singleton = $theme;
}
/**
* @return Theme
*/
public static function singleton() {
if ( !self::$singleton ) {
throw new Exception( __METHOD__ . ' was called with no singleton theme set.' );
}
return self::$singleton;
}
/**
* Get a list of classes to be applied to a widget.
*
* The 'on' and 'off' lists combined MUST contain keys for all classes the theme adds or removes,
* otherwise state transitions will not work properly.
*
* @param Element $element Element for which to get classes
* @return string[][] Categorized class names with `on` and `off` lists
*/
public function getElementClasses( Element $element ) {
return [ 'on' => [], 'off' => [] ];
}
/**
* Update CSS classes provided by the theme.
*
* For elements with theme logic hooks, this should be called any time there's a state change.
*
* @param Element $element Element for which to update classes
*/
public function updateElementClasses( Element $element ) {
$classes = $this->getElementClasses( $element );
if ( method_exists( $element, 'getIconElement' ) ) {
// @phan-suppress-next-line PhanUndeclaredMethod
$element->getIconElement()
->removeClasses( $classes['off'] )
->addClasses( $classes['on'] );
}
if ( method_exists( $element, 'getIndicatorElement' ) ) {
// @phan-suppress-next-line PhanUndeclaredMethod
$element->getIndicatorElement()
->removeClasses( $classes['off'] )
->addClasses( $classes['on'] );
}
}
}

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Sat, Oct 3, 13:13 (1 d, 23 h ago)
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Theme.php (1 KB)

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