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533 lines
16 KiB
533 lines
16 KiB
<?php
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/**
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* CSSTidy Printing PHP Class
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*
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* @package TablePress
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* @subpackage CSS
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* @author Florian Schmitz, Brett Zamir, Nikolay Matsievsky, Cedric Morin, Christopher Finke, Mark Scherer, Tobias Bäthge
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* @since 1.0.0
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*/
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// Prohibit direct script loading.
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defined( 'ABSPATH' ) || die( 'No direct script access allowed!' );
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/**
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* CSS Printing class
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*
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* This class prints CSS data generated by CSSTidy.
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*
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* @package CSSTidy
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* @version 1.1.0
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*/
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class TablePress_CSSTidy_Print {
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/**
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* TablePress_CSSTidy instance.
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*
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* @since 1.0.0
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* @var TablePress_CSSTidy
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*/
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public $parser;
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/**
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* The parsed CSS.
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*
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* @since 1.0.0
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* @var array
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*/
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public $css = array();
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/**
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* The output templates.
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*
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* @since 1.0.0
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* @var array
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*/
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public $template = array();
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/**
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* The raw parsed CSS.
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*
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* @since 1.0.0
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* @var array
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*/
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public $tokens = array();
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/**
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* The CSS charset.
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*
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* @since 1.0.0
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* @var string
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*/
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public $charset = '';
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/**
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* All @import URLs.
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*
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* @since 1.0.0
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* @var array
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*/
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public $import = array();
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/**
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* The namespace.
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*
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* @since 1.0.0
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* @var string
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*/
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public $namespace = '';
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/**
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* Saves the input CSS string.
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*
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* @since 1.0.0
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* @var string
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*/
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public $input_css = '';
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/**
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* Saves the formatted CSS string.
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*
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* @since 1.0.0
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* @var string
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*/
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public $output_css = '';
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/**
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* Saves the formatted CSS string (plain text).
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*
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* @since 1.0.0
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* @var string
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*/
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public $output_css_plain = '';
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/**
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* Constructor.
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*
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* @since 1.0
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*
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* @param TablePress_CSSTidy $csstidy Instance of the TablePress_CSSTidy class.
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*/
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public function __construct( TablePress_CSSTidy $csstidy ) {
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$this->parser = $csstidy;
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$this->css = &$csstidy->css;
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$this->template = &$csstidy->template;
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$this->tokens = &$csstidy->tokens;
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$this->charset = &$csstidy->charset;
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$this->import = &$csstidy->import;
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$this->namespace = &$csstidy->namespace;
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}
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/**
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* Resets output_css and output_css_plain (new CSS code).
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*
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* @since 1.0
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*/
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public function _reset(): void {
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$this->output_css = '';
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$this->output_css_plain = '';
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}
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/**
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* Returns the CSS code as plain text.
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*
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* @since 1.0
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*
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* @param string $default_media Optional. Default @media to add to selectors without any @media.
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* @return string Plain CSS.
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*/
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public function plain( string $default_media = '' ): string {
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$this->_print( true, $default_media );
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return $this->output_css_plain;
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}
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/**
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* Returns the formatted CSS code.
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*
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* @since 1.0
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*
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* @param string $default_media Optional. Default @media to add to selectors without any @media.
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* @return string Formatted CSS.
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*/
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public function formatted( string $default_media = '' ): string {
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$this->_print( false, $default_media );
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return $this->output_css;
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}
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/**
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* Returns the formatted CSS code to make a complete webpage.
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*
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* @since 1.0
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*
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* @param string $doctype Optional. Shorthand for the document type.
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* @param bool $externalcss Optional. Indicates whether styles to be attached internally or as an external stylesheet.
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* @param string $title Optional. Title to be added in the head of the document.
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* @param string $lang Optional. Two-letter language code to be added to the output.
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* @return string Formatted CSS for a full page.
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*/
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public function formatted_page( string $doctype = 'html5', bool $externalcss = true, string $title = '', string $lang = 'en' ): string {
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switch ( $doctype ) {
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case 'html5':
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$doctype_output = '<!DOCTYPE html>';
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break;
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case 'xhtml1.0strict':
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$doctype_output = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">';
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break;
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case 'xhtml1.1':
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default:
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$doctype_output = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">';
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break;
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}
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$output = '';
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$output .= $doctype_output . "\n" . '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="' . $lang . '"';
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$output .= ( 'xhtml1.1' === $doctype ) ? '>' : ' lang="' . $lang . '">';
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$output .= "\n<head>\n\t<title>{$title}</title>";
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if ( $externalcss ) {
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$output .= "\n\t<style>\n";
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$output .= file_get_contents( 'cssparsed.css' ); // Adds an invisible BOM or something, but not in css_optimised.php.
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$output .= "\n</style>";
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} else {
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$output .= "\n" . '<link rel="stylesheet" type="text/css" href="cssparsed.css" />'; // phpcs:ignore WordPress.WP.EnqueuedResources.NonEnqueuedStylesheet
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}
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$output .= "\n</head>\n<body><code id=\"copytext\">";
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$output .= $this->formatted();
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$output .= '</code>' . "\n" . '</body></html>';
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$this->output_css_plain = $output;
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return $this->output_css_plain;
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}
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/**
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* Returns the formatted CSS Code and saves it into $this->output_css and $this->output_css_plain.
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*
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* @since 1.0
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*
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* @param bool $plain Optional. Plain text or not.
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* @param string $default_media Optional. Default @media to add to selectors without any @media.
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*/
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protected function _print( bool $plain = false, string $default_media = '' ): void {
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if ( $this->output_css && $this->output_css_plain ) {
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return;
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}
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$output = '';
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if ( ! $this->parser->get_cfg( 'preserve_css' ) ) {
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$this->_convert_raw_css( $default_media );
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}
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$template = &$this->template;
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if ( $plain ) {
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$template = array_map( 'strip_tags', $template );
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}
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if ( $this->parser->get_cfg( 'timestamp' ) ) {
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array_unshift( $this->tokens, array( TablePress_CSSTidy::COMMENT, ' CSSTidy: ' . gmdate( 'r' ) . ' ' ) );
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}
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if ( ! empty( $this->charset ) ) {
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$output .= $template[0] . '@charset ' . $template[5] . $this->charset . $template[6] . $template[13];
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}
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if ( ! empty( $this->import ) ) {
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for ( $i = 0, $size = count( $this->import ); $i < $size; $i++ ) {
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$import_components = explode( ' ', $this->import[ $i ] );
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if ( str_starts_with( $import_components[0], 'url(' ) && str_ends_with( $import_components[0], ')' ) ) {
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$import_components[0] = '\'' . trim( substr( $import_components[0], 4, -1 ), "'\"" ) . '\'';
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$this->import[ $i ] = implode( ' ', $import_components );
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$this->parser->log( 'Optimised @import : Removed "url("', 'Information' );
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} elseif ( ! preg_match( '/^".+"$/', $this->import[ $i ] ) ) {
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// Fixes a bug for @import ".." instead of the expected @import url("..").
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// If it comes in due to @import ".." the "" will be missing and the output will become @import .. (which is an error).
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$this->import[ $i ] = '"' . $this->import[ $i ] . '"';
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}
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$output .= $template[0] . '@import ' . $template[5] . $this->import[ $i ] . $template[6] . $template[13];
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}
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}
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if ( ! empty( $this->namespace ) ) {
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if ( false !== ( $p = strpos( $this->namespace, 'url(' ) ) && str_ends_with( $this->namespace, ')' ) ) { // phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.Found,Squiz.PHP.DisallowMultipleAssignments.FoundInControlStructure
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$this->namespace = substr_replace( $this->namespace, '"', $p, 4 );
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$this->namespace = substr( $this->namespace, 0, -1 ) . '"';
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$this->parser->log( 'Optimised @namespace : Removed "url("', 'Information' );
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}
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$output .= $template[0] . '@namespace ' . $template[5] . $this->namespace . $template[6] . $template[13];
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}
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$in_at_out = array();
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$out = &$output;
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$indent_level = 0;
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foreach ( $this->tokens as $key => $token ) {
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switch ( $token[0] ) {
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case TablePress_CSSTidy::AT_START:
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if ( $this->parser->get_cfg( 'preserve_css' ) ) {
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$token[1] = str_replace( ',', ",\n", $token[1] );
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}
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$out .= $template[0] . $this->_htmlsp( $token[1], $plain ) . $template[1];
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++$indent_level;
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if ( ! isset( $in_at_out[ $indent_level ] ) ) {
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$in_at_out[ $indent_level ] = '';
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}
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$out = &$in_at_out[ $indent_level ];
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break;
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case TablePress_CSSTidy::SEL_START:
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if ( $this->parser->get_cfg( 'lowercase_s' ) ) {
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$token[1] = strtolower( $token[1] );
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}
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if ( $this->parser->get_cfg( 'preserve_css' ) ) {
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$token[1] = str_replace( ',', ",\n", $token[1] );
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}
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$out .= ( '@' !== $token[1][0] ) ? $template[2] . $this->_htmlsp( $token[1], $plain ) : $template[0] . $this->_htmlsp( $token[1], $plain );
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$out .= $template[3];
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break;
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case TablePress_CSSTidy::PROPERTY:
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if ( 2 === $this->parser->get_cfg( 'case_properties' ) ) {
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$token[1] = strtoupper( $token[1] );
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} elseif ( 1 === $this->parser->get_cfg( 'case_properties' ) ) {
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$token[1] = strtolower( $token[1] );
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}
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$out .= $template[4] . $this->_htmlsp( $token[1], $plain ) . ':' . $template[5];
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break;
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case TablePress_CSSTidy::VALUE:
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$out .= $this->_htmlsp( $token[1], $plain );
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if ( TablePress_CSSTidy::SEL_END === $this->_seeknocomment( $key, 1 ) && $this->parser->get_cfg( 'remove_last_;' ) ) {
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$out .= str_replace( ';', '', $template[6] );
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} else {
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$out .= $template[6];
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}
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if ( $this->parser->get_cfg( 'preserve_css' ) ) {
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$out .= ( TablePress_CSSTidy::COMMENT === $this->tokens[ $key + 1 ][0] ) ? ' ' : "\n";
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}
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break;
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case TablePress_CSSTidy::SEL_END:
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$out .= $template[7];
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if ( TablePress_CSSTidy::AT_END !== $this->_seeknocomment( $key, 1 ) ) {
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$out .= $template[8];
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}
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break;
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case TablePress_CSSTidy::AT_END:
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if ( strlen( $template[10] ) ) {
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// Indent the block we are closing.
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$out = str_replace( "\n\n", "\r\n", $out ); // Don't fill empty lines.
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$out = str_replace( "\n", "\n" . $template[10], $out );
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$out = str_replace( "\r\n", "\n\n", $out );
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}
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if ( $indent_level > 1 ) {
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$out = &$in_at_out[ $indent_level - 1 ];
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} else {
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$out = &$output;
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}
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$out .= $template[10] . $in_at_out[ $indent_level ];
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if ( TablePress_CSSTidy::AT_END !== $this->_seeknocomment( $key, 1 ) ) {
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$out .= $template[9];
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} else {
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$out .= rtrim( $template[9] );
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}
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unset( $in_at_out[ $indent_level ] );
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--$indent_level;
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break;
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case TablePress_CSSTidy::IMPORTANT_COMMENT:
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case TablePress_CSSTidy::COMMENT:
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$out .= $template[11] . '/*' . $this->_htmlsp( $token[1], $plain ) . '*/' . $template[12];
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break;
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}
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}
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if ( ! $this->parser->get_cfg( 'preserve_css' ) ) {
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$output = str_replace( ' !important', '!important', $output );
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}
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$output = trim( $output );
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if ( ! $plain ) {
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$this->output_css = $output;
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$this->_print( true );
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} else {
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// If using spaces in the template, don't want these to appear in the plain output.
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$this->output_css_plain = str_replace( ' ', '', $output );
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}
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}
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/**
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* Gets the next token type which is $move away from $key, excluding comments.
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*
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* @since 1.0
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*
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* @param int $key Current position.
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* @param int $move Move this far.
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* @return mixed A token type.
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*/
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protected function _seeknocomment( int $key, int $move ) /* : mixed */ {
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$go = ( $move > 0 ) ? 1 : -1;
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for ( $i = $key + 1; abs( $key - $i ) - 1 < abs( $move ); $i += $go ) { // phpcs:ignore Generic.CodeAnalysis.ForLoopWithTestFunctionCall.NotAllowed
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if ( ! isset( $this->tokens[ $i ] ) ) {
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return;
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}
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if ( TablePress_CSSTidy::COMMENT === $this->tokens[ $i ][0] ) {
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++$move;
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continue;
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}
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return $this->tokens[ $i ][0];
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}
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}
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/**
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* Converts $this->css array to a raw array ($this->tokens).
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*
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* @since 1.0.0
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*
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* @param string $default_media Optional. Default @media to add to selectors without any @media.
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*/
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protected function _convert_raw_css( string $default_media = '' ): void {
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$this->tokens = array();
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$sort_selectors = $this->parser->get_cfg( 'sort_selectors' );
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$sort_properties = $this->parser->get_cfg( 'sort_properties' );
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// Important comment section?
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if ( isset( $this->css['!'] ) ) {
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$this->parser->_add_token( TablePress_CSSTidy::IMPORTANT_COMMENT, rtrim( $this->css['!'] ), true );
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unset( $this->css['!'] );
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}
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foreach ( $this->css as $medium => $val ) {
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if ( $sort_selectors ) {
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ksort( $val );
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}
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if ( (int) $medium < TablePress_CSSTidy::DEFAULT_AT ) {
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// An empty medium (containing @font-face or other @) produces no container.
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if ( strlen( trim( $medium ) ) ) {
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$parts_to_open = explode( '{', $medium );
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foreach ( $parts_to_open as $part ) {
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$this->parser->_add_token( TablePress_CSSTidy::AT_START, $part, true );
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}
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}
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} elseif ( $default_media ) {
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$this->parser->_add_token( TablePress_CSSTidy::AT_START, $default_media, true );
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}
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foreach ( $val as $selector => $vali ) {
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if ( $sort_properties ) {
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ksort( $vali );
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}
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$this->parser->_add_token( TablePress_CSSTidy::SEL_START, $selector, true );
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$invalid = array(
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'*' => array(), // IE7 hacks first.
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'_' => array(), // IE6 hacks.
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'/' => array(), // IE6 hacks.
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'-' => array(), // IE6 hacks.
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);
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foreach ( $vali as $property => $valj ) {
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if ( ! str_starts_with( $property, '//' ) ) {
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$matches = array();
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if ( $sort_properties && preg_match( '/^(\*|_|\/|-)(?!(ms|moz|o\b|xv|atsc|wap|khtml|webkit|ah|hp|ro|rim|tc)-)/', $property, $matches ) ) {
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$invalid[ $matches[1] ][ $property ] = $valj;
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} else {
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$this->parser->_add_token( TablePress_CSSTidy::PROPERTY, $property, true );
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$this->parser->_add_token( TablePress_CSSTidy::VALUE, $valj, true );
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}
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}
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}
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foreach ( $invalid as $prefix => $props ) {
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foreach ( $props as $property => $valj ) {
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$this->parser->_add_token( TablePress_CSSTidy::PROPERTY, $property, true );
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$this->parser->_add_token( TablePress_CSSTidy::VALUE, $valj, true );
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}
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}
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$this->parser->_add_token( TablePress_CSSTidy::SEL_END, $selector, true );
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}
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if ( (int) $medium < TablePress_CSSTidy::DEFAULT_AT ) {
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// An empty medium (containing @font-face or other @) produces no container.
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if ( strlen( trim( $medium ) ) ) {
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$parts_to_close = explode( '{', $medium );
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foreach ( array_reverse( $parts_to_close ) as $part ) {
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$this->parser->_add_token( TablePress_CSSTidy::AT_END, $part, true );
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}
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}
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} elseif ( $default_media ) {
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$this->parser->_add_token( TablePress_CSSTidy::AT_END, $default_media, true );
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}
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}
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}
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/**
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* Same as htmlspecialchars, only that chars are not replaced if $plain is true. This makes print_code() cleaner.
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*
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* @since 1.0
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*
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* @see CSSTidy_print::_print()
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*
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* @param string $a_string String.
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* @param bool $plain Whether to print plain.
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* @return string Original string or htmlspecialchars() version.
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*/
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protected function _htmlsp( string $a_string, bool $plain ): string {
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if ( ! $plain ) {
|
|
return htmlspecialchars( $a_string, ENT_QUOTES, 'utf-8' );
|
|
}
|
|
return $a_string;
|
|
}
|
|
|
|
/**
|
|
* Gets compression ratio.
|
|
*
|
|
* @since 1.2
|
|
*
|
|
* @return double Compression ratio.
|
|
*/
|
|
public function get_ratio(): float {
|
|
if ( ! $this->output_css_plain ) {
|
|
$this->formatted();
|
|
}
|
|
return round( ( strlen( $this->input_css ) - strlen( $this->output_css_plain ) ) / strlen( $this->input_css ), 3 ) * 100;
|
|
}
|
|
|
|
/**
|
|
* Gets difference between the old and new code in bytes and prints the code if necessary.
|
|
*
|
|
* @since 1.1
|
|
*
|
|
* @return string Size difference.
|
|
*/
|
|
public function get_diff(): string {
|
|
if ( ! $this->output_css_plain ) {
|
|
$this->formatted();
|
|
}
|
|
|
|
$diff = strlen( $this->output_css_plain ) - strlen( $this->input_css );
|
|
|
|
if ( $diff > 0 ) {
|
|
return '+' . $diff;
|
|
} elseif ( 0 === $diff ) {
|
|
return '+-' . $diff;
|
|
}
|
|
|
|
return (string) $diff;
|
|
}
|
|
|
|
/**
|
|
* Gets the size of either input or output CSS in kilobytes (KB).
|
|
*
|
|
* @since 1.0
|
|
*
|
|
* @param string $loc Optional. Location of the CSS.
|
|
* @return double Size of the CSS.
|
|
*/
|
|
public function size( string $loc = 'output' ): float {
|
|
if ( 'output' === $loc && ! $this->output_css ) {
|
|
$this->formatted();
|
|
}
|
|
|
|
if ( 'input' === $loc ) {
|
|
return strlen( $this->input_css ) / 1000;
|
|
} else {
|
|
return strlen( $this->output_css_plain ) / 1000;
|
|
}
|
|
}
|
|
|
|
} // class TablePress_CSSTidy_Print
|