<?php /** * This file creates a class to build our CSS. * * @package GP Premium */ if ( ! defined( 'ABSPATH' ) ) { exit; // No direct access, please. } if ( ! class_exists( 'GeneratePress_Backgrounds_CSS' ) ) { /** * Generate our background CSS. */ class GeneratePress_Backgrounds_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 /** * 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 $url Whether we need to generate URL in the string. * @return $this */ public function add_property( $property, $value, $url = '' ) { // If we don't have a value or our value is the same as our og default, bail. if ( empty( $value ) ) { return false; } // Set up our background image URL param if needed. $url_start = ( '' !== $url ) ? "url('" : ""; // phpcs:ignore -- need double quotes. $url_end = ( '' !== $url ) ? "')" : ""; // phpcs:ignore -- need double quotes. $this->_css .= $property . ':' . $url_start . $value . $url_end . ';'; 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 ); $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; } } }