TwentyTwenty_SVG_Icons

17	class TwentyTwenty_SVG_Icons {18		/**19		 * GET SVG CODE20		 * Get the SVG code for the specified icon21		 *22		 * @since Twenty Twenty 1.023		 *24		 * @param string $icon  Icon name.25		 * @param string $group Icon group.26		 * @param string $color Color.27		 */28		public static function get_svg( $icon, $group = 'ui', $color = '#1A1A1B' ) {29			if ( 'ui' === $group ) {30				$arr = self::$ui_icons;31			} elseif ( 'social' === $group ) {32				$arr = self::$social_icons;33			} else {34				$arr = array();35			}36 37			/**38			 * Filters Twenty Twenty's array of icons.39			 *40			 * The dynamic portion of the hook name, `$group`, refers to41			 * the name of the group of icons, either "ui" or "social".42			 *43			 * @since Twenty Twenty 1.544			 *45			 * @param array $arr Array of icons.46			 */47			$arr = apply_filters( "twentytwenty_svg_icons_{$group}", $arr );48 49			/**50			 * Filters an SVG icon's color.51			 *52			 * @since Twenty Twenty 1.553			 *54			 * @param string $color The icon color.55			 * @param string $icon  The icon name.56			 * @param string $group The icon group.57			 */58			$color = apply_filters( 'twentytwenty_svg_icon_color', $color, $icon, $group );59 60			if ( array_key_exists( $icon, $arr ) ) {61				$repl = '<svg class="svg-icon" aria-hidden="true" role="img" focusable="false" ';62				$svg  = preg_replace( '/^<svg /', $repl, trim( $arr[ $icon ] ) ); // Add extra attributes to SVG code.63				$svg  = str_replace( '#1A1A1B', $color, $svg );   // Replace the color.64				$svg  = str_replace( '#', '%23', $svg );          // Urlencode hashes.65				$svg  = preg_replace( "/([\n\t]+)/", ' ', $svg ); // Remove newlines & tabs.66				$svg  = preg_replace( '/>\s*</', '><', $svg );    // Remove whitespace between SVG tags.67				return $svg;68			}69			return null;70		}71 72		/**73		 * GET SOCIAL LINK SVG74		 * Detects the social network from a URL and returns the SVG code for its icon.75		 *76		 * @since Twenty Twenty 1.077		 *78		 * @param string $uri The URL to retrieve SVG for.79		 */80		public static function get_social_link_svg( $uri ) {81			static $regex_map; // Only compute regex map once, for performance.82			if ( ! isset( $regex_map ) ) {83				$regex_map = array();84 85				/**86				 * Filters Twenty Twenty's array of domain mappings for social icons.87				 *88				 * By default, each Icon ID is matched against a .com TLD. To override this behavior,89				 * specify all the domains it covers (including the .com TLD too, if applicable).90				 *91				 * @since Twenty Twenty 1.592				 *93				 * @param array $social_icons_map Array of default social icons.94				 */95				$map = apply_filters( 'twentytwenty_social_icons_map', self::$social_icons_map );96