135 lines
3.2 KiB
PHP
135 lines
3.2 KiB
PHP
<?php
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/**
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* This file creates a class to build our CSS.
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*
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* @package GP Premium
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit; // No direct access, please.
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}
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if ( ! class_exists( 'GeneratePress_Backgrounds_CSS' ) ) {
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/**
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* Generate our background CSS.
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*/
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class GeneratePress_Backgrounds_CSS {
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/**
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* The css selector that you're currently adding rules to
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*
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* @access protected
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* @var string
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*/
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protected $_selector = ''; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore
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/**
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* Stores the final css output with all of its rules for the current selector.
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*
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* @access protected
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* @var string
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*/
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protected $_selector_output = ''; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore
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/**
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* Stores all of the rules that will be added to the selector
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*
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* @access protected
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* @var string
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*/
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protected $_css = ''; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore
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/**
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* The string that holds all of the css to output
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*
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* @access protected
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* @var string
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*/
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protected $_output = ''; // phpcs:ignore PSR2.Classes.PropertyDeclaration.Underscore
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/**
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* Sets a selector to the object and changes the current selector to a new one
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*
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* @access public
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* @since 1.0
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*
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* @param string $selector - the css identifier of the html that you wish to target.
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* @return $this
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*/
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public function set_selector( $selector = '' ) {
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// Render the css in the output string everytime the selector changes.
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if ( '' !== $this->_selector ) {
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$this->add_selector_rules_to_output();
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}
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$this->_selector = $selector;
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return $this;
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}
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/**
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* Adds a css property with value to the css output
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*
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* @access public
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* @since 1.0
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*
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* @param string $property - the css property.
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* @param string $value - the value to be placed with the property.
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* @param string $url Whether we need to generate URL in the string.
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* @return $this
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*/
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public function add_property( $property, $value, $url = '' ) {
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// If we don't have a value or our value is the same as our og default, bail.
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if ( empty( $value ) ) {
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return false;
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}
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// Set up our background image URL param if needed.
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$url_start = ( '' !== $url ) ? "url('" : ""; // phpcs:ignore -- need double quotes.
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$url_end = ( '' !== $url ) ? "')" : ""; // phpcs:ignore -- need double quotes.
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$this->_css .= $property . ':' . $url_start . $value . $url_end . ';';
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return $this;
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}
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/**
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* Adds the current selector rules to the output variable
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*
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* @access private
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* @since 1.0
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*
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* @return $this
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*/
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private function add_selector_rules_to_output() {
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if ( ! empty( $this->_css ) ) {
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$this->_selector_output = $this->_selector;
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$selector_output = sprintf( '%1$s{%2$s}', $this->_selector_output, $this->_css );
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$this->_output .= $selector_output;
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// Reset the css.
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$this->_css = '';
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}
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return $this;
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}
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/**
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* Returns the minified css in the $_output variable
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*
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* @access public
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* @since 1.0
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*
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* @return string
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*/
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public function css_output() {
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// Add current selector's rules to output.
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$this->add_selector_rules_to_output();
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// Output minified css.
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return $this->_output;
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}
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}
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}
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