Directory /wp-includes/widgets
..
class-wp-nav-menu-widget.php
class-wp-widget-archives.php
class-wp-widget-block.php
class-wp-widget-calendar.php
class-wp-widget-categories.php
class-wp-widget-custom-html.php
class-wp-widget-links.php
class-wp-widget-media-audio.php
class-wp-widget-media-gallery.php
class-wp-widget-media-image.php
class-wp-widget-media-video.php
class-wp-widget-media.php
class-wp-widget-meta.php
class-wp-widget-pages.php
class-wp-widget-recent-comments.php
class-wp-widget-recent-posts.php
class-wp-widget-rss.php
class-wp-widget-search.php
class-wp-widget-tag-cloud.php
class-wp-widget-text.php