JezK
Edit File: class-css.php
<?php /** * Builds our dynamic CSS. * * @package GeneratePress */ if ( ! defined( 'ABSPATH' ) ) { exit; // Exit if accessed directly. } if ( ! class_exists( 'GeneratePress_CSS' ) ) { /** * Creates minified css via PHP. * * @author Carlos Rios * Modified by Tom Usborne for GeneratePress */ class GeneratePress_CSS { /** * The css selector that you're currently adding rules to * * @access protected * @var string */ protected $_selector = ''; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore /** * Stores the final css output with all of its rules for the current selector. * * @access protected * @var string */ protected $_selector_output = ''; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore /** * Stores all of the rules that will be added to the selector * * @access protected * @var string */ protected $_css = ''; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore /** * The string that holds all of the css to output * * @access protected * @var string */ protected $_output = ''; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore /** * Stores media queries * * @var null */ protected $_media_query = null; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore /** * The string that holds all of the css to output inside of the media query * * @access protected * @var string */ protected $_media_query_output = ''; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore /** * Sets a selector to the object and changes the current selector to a new one * * @access public * @since 1.0 * * @param string $selector - the css identifier of the html that you wish to target. * @return $this */ public function set_selector( $selector = '' ) { // Render the css in the output string everytime the selector changes. if ( '' !== $this->_selector ) { $this->add_selector_rules_to_output(); } $this->_selector = $selector; return $this; } /** * Adds a css property with value to the css output * * @access public * @since 1.0 * * @param string $property The css property. * @param string $value The value to be placed with the property. * @param string $og_default Check to see if the value matches the default. * @param string $unit The unit for the value (px). * @return $this */ public function add_property( $property, $value, $og_default = false, $unit = false ) { // Setting font-size to 0 is rarely ever a good thing. if ( 'font-size' === $property && 0 === $value ) { return false; } // Add our unit to our value if it exists. if ( $unit && '' !== $unit && is_numeric( $value ) ) { $value = $value . $unit; if ( '' !== $og_default ) { $og_default = $og_default . $unit; } } // If we don't have a value or our value is the same as our og default, bail. if ( ( empty( $value ) && ! is_numeric( $value ) ) || $og_default === $value ) { return false; } $this->_css .= $property . ':' . $value . ';'; return $this; } /** * Sets a media query in the class * * @since 1.1 * @param string $value The media query. * @return $this */ public function start_media_query( $value ) { // Add the current rules to the output. $this->add_selector_rules_to_output(); // Add any previous media queries to the output. if ( ! empty( $this->_media_query ) ) { $this->add_media_query_rules_to_output(); } // Set the new media query. $this->_media_query = $value; return $this; } /** * Stops using a media query. * * @see start_media_query() * * @since 1.1 * @return $this */ public function stop_media_query() { return $this->start_media_query( null ); } /** * Adds the current media query's rules to the class' output variable * * @since 1.1 * @return $this */ private function add_media_query_rules_to_output() { if ( ! empty( $this->_media_query_output ) ) { $this->_output .= sprintf( '@media %1$s{%2$s}', $this->_media_query, $this->_media_query_output ); // Reset the media query output string. $this->_media_query_output = ''; } return $this; } /** * Adds the current selector rules to the output variable * * @access private * @since 1.0 * * @return $this */ private function add_selector_rules_to_output() { if ( ! empty( $this->_css ) ) { $this->_selector_output = $this->_selector; $selector_output = sprintf( '%1$s{%2$s}', $this->_selector_output, $this->_css ); // Add our CSS to the output. if ( ! empty( $this->_media_query ) ) { $this->_media_query_output .= $selector_output; $this->_css = ''; } else { $this->_output .= $selector_output; } // Reset the css. $this->_css = ''; } return $this; } /** * Returns the minified css in the $_output variable * * @access public * @since 1.0 * * @return string */ public function css_output() { // Add current selector's rules to output. $this->add_selector_rules_to_output(); // Output minified css. return $this->_output; } } }