laipower/wp-content/plugins/gp-premium/backgrounds/functions/css.php

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<?php
/**
* This file creates a class to build our CSS.
*
* @package GP Premium
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // No direct access, please.
}
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if ( ! class_exists( 'GeneratePress_Backgrounds_CSS' ) ) {
/**
* Generate our background CSS.
*/
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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
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/**
* 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
*/
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public function set_selector( $selector = '' ) {
// Render the css in the output string everytime the selector changes.
if ( '' !== $this->_selector ) {
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$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
*/
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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.
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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 = ( '' !== $url ) ? "')" : ""; // phpcs:ignore -- need double quotes.
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$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
*/
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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 .= $selector_output;
// Reset the css.
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$this->_css = '';
}
return $this;
}
/**
* Returns the minified css in the $_output variable
*
* @access public
* @since 1.0
*
* @return string
*/
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public function css_output() {
// Add current selector's rules to output.
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$this->add_selector_rules_to_output();
// Output minified css.
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return $this->_output;
}
}
}