936 lines
28 KiB
PHP
936 lines
28 KiB
PHP
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<?php
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/**
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* CSSTidy - CSS Parser and Optimiser
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*
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* CSS Optimising Class
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* This class optimises CSS data generated by csstidy.
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*
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* Copyright 2005, 2006, 2007 Florian Schmitz
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*
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* This file is part of CSSTidy.
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*
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* CSSTidy is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* CSSTidy is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @license http://opensource.org/licenses/lgpl-license.php GNU Lesser General Public License
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* @package csstidy
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* @author Florian Schmitz (floele at gmail dot com) 2005-2007
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* @author Brett Zamir (brettz9 at yahoo dot com) 2007
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* @author Nikolay Matsievsky (speed at webo dot name) 2009-2010
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*/
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/**
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* CSS Optimising Class
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*
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* This class optimises CSS data generated by csstidy.
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*
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* @package csstidy
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* @author Florian Schmitz (floele at gmail dot com) 2005-2006
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* @version 1.0
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*/
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class csstidy_optimise {
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/**
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* Constructor
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* @param array $css contains the class csstidy
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* @access private
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* @version 1.0
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*/
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function csstidy_optimise(&$css) {
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$this->parser = & $css;
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$this->css = & $css->css;
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$this->sub_value = & $css->sub_value;
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$this->at = & $css->at;
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$this->selector = & $css->selector;
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$this->property = & $css->property;
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$this->value = & $css->value;
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}
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/**
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* Optimises $css after parsing
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* @access public
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* @version 1.0
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*/
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function postparse() {
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if ($this->parser->get_cfg('preserve_css')) {
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return;
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}
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if ($this->parser->get_cfg('merge_selectors') === 2) {
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foreach ($this->css as $medium => $value) {
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$this->merge_selectors($this->css[$medium]);
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}
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}
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if ($this->parser->get_cfg('discard_invalid_selectors')) {
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foreach ($this->css as $medium => $value) {
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$this->discard_invalid_selectors($this->css[$medium]);
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}
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}
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if ($this->parser->get_cfg('optimise_shorthands') > 0) {
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foreach ($this->css as $medium => $value) {
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foreach ($value as $selector => $value1) {
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$this->css[$medium][$selector] = csstidy_optimise::merge_4value_shorthands($this->css[$medium][$selector]);
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if ($this->parser->get_cfg('optimise_shorthands') < 2) {
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continue;
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}
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$this->css[$medium][$selector] = csstidy_optimise::merge_font($this->css[$medium][$selector]);
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if ($this->parser->get_cfg('optimise_shorthands') < 3) {
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continue;
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}
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$this->css[$medium][$selector] = csstidy_optimise::merge_bg($this->css[$medium][$selector]);
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if (empty($this->css[$medium][$selector])) {
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unset($this->css[$medium][$selector]);
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}
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}
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}
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}
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}
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/**
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* Optimises values
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* @access public
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* @version 1.0
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*/
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function value() {
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$shorthands = & $GLOBALS['csstidy']['shorthands'];
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// optimise shorthand properties
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if (isset($shorthands[$this->property])) {
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$temp = csstidy_optimise::shorthand($this->value); // FIXME - move
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if ($temp != $this->value) {
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$this->parser->log('Optimised shorthand notation (' . $this->property . '): Changed "' . $this->value . '" to "' . $temp . '"', 'Information');
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}
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$this->value = $temp;
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}
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// Remove whitespace at ! important
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if ($this->value != $this->compress_important($this->value)) {
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$this->parser->log('Optimised !important', 'Information');
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}
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}
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/**
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* Optimises shorthands
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* @access public
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* @version 1.0
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*/
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function shorthands() {
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$shorthands = & $GLOBALS['csstidy']['shorthands'];
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if (!$this->parser->get_cfg('optimise_shorthands') || $this->parser->get_cfg('preserve_css')) {
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return;
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}
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if ($this->property === 'font' && $this->parser->get_cfg('optimise_shorthands') > 1) {
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$this->css[$this->at][$this->selector]['font']='';
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$this->parser->merge_css_blocks($this->at, $this->selector, csstidy_optimise::dissolve_short_font($this->value));
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}
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if ($this->property === 'background' && $this->parser->get_cfg('optimise_shorthands') > 2) {
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$this->css[$this->at][$this->selector]['background']='';
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$this->parser->merge_css_blocks($this->at, $this->selector, csstidy_optimise::dissolve_short_bg($this->value));
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}
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if (isset($shorthands[$this->property])) {
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$this->parser->merge_css_blocks($this->at, $this->selector, csstidy_optimise::dissolve_4value_shorthands($this->property, $this->value));
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if (is_array($shorthands[$this->property])) {
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$this->css[$this->at][$this->selector][$this->property] = '';
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}
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}
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}
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/**
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* Optimises a sub-value
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* @access public
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* @version 1.0
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*/
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function subvalue() {
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$replace_colors = & $GLOBALS['csstidy']['replace_colors'];
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$this->sub_value = trim($this->sub_value);
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if ($this->sub_value == '') { // caution : '0'
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return;
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}
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$important = '';
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if (csstidy::is_important($this->sub_value)) {
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$important = '!important';
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}
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$this->sub_value = csstidy::gvw_important($this->sub_value);
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// Compress font-weight
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if ($this->property === 'font-weight' && $this->parser->get_cfg('compress_font-weight')) {
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if ($this->sub_value === 'bold') {
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$this->sub_value = '700';
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$this->parser->log('Optimised font-weight: Changed "bold" to "700"', 'Information');
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} else if ($this->sub_value === 'normal') {
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$this->sub_value = '400';
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$this->parser->log('Optimised font-weight: Changed "normal" to "400"', 'Information');
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}
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}
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$temp = $this->compress_numbers($this->sub_value);
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if (strcasecmp($temp, $this->sub_value) !== 0) {
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if (strlen($temp) > strlen($this->sub_value)) {
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$this->parser->log('Fixed invalid number: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Warning');
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} else {
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$this->parser->log('Optimised number: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Information');
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}
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$this->sub_value = $temp;
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}
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if ($this->parser->get_cfg('compress_colors')) {
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$temp = $this->cut_color($this->sub_value);
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if ($temp !== $this->sub_value) {
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if (isset($replace_colors[$this->sub_value])) {
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$this->parser->log('Fixed invalid color name: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Warning');
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} else {
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$this->parser->log('Optimised color: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Information');
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}
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$this->sub_value = $temp;
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}
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}
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$this->sub_value .= $important;
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}
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/**
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* Compresses shorthand values. Example: margin:1px 1px 1px 1px -> margin:1px
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* @param string $value
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* @access public
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* @return string
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* @version 1.0
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*/
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function shorthand($value) {
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$important = '';
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if (csstidy::is_important($value)) {
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$values = csstidy::gvw_important($value);
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$important = '!important';
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}
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else
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$values = $value;
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$values = explode(' ', $values);
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switch (count($values)) {
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case 4:
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if ($values[0] == $values[1] && $values[0] == $values[2] && $values[0] == $values[3]) {
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return $values[0] . $important;
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} elseif ($values[1] == $values[3] && $values[0] == $values[2]) {
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return $values[0] . ' ' . $values[1] . $important;
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} elseif ($values[1] == $values[3]) {
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return $values[0] . ' ' . $values[1] . ' ' . $values[2] . $important;
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}
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break;
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case 3:
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if ($values[0] == $values[1] && $values[0] == $values[2]) {
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return $values[0] . $important;
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} elseif ($values[0] == $values[2]) {
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return $values[0] . ' ' . $values[1] . $important;
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}
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break;
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case 2:
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if ($values[0] == $values[1]) {
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return $values[0] . $important;
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}
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break;
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}
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return $value;
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}
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/**
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* Removes unnecessary whitespace in ! important
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* @param string $string
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* @return string
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* @access public
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* @version 1.1
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*/
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function compress_important(&$string) {
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if (csstidy::is_important($string)) {
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$string = csstidy::gvw_important($string) . ' !important'; }
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return $string;
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}
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/**
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* Color compression function. Converts all rgb() values to #-values and uses the short-form if possible. Also replaces 4 color names by #-values.
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* @param string $color
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* @return string
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* @version 1.1
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*/
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function cut_color($color) {
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$replace_colors = & $GLOBALS['csstidy']['replace_colors'];
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// rgb(0,0,0) -> #000000 (or #000 in this case later)
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if (strtolower(substr($color, 0, 4)) === 'rgb(') {
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$color_tmp = substr($color, 4, strlen($color) - 5);
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$color_tmp = explode(',', $color_tmp);
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for ($i = 0; $i < count($color_tmp); $i++) {
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$color_tmp[$i] = trim($color_tmp[$i]);
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if (substr($color_tmp[$i], -1) === '%') {
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$color_tmp[$i] = round((255 * $color_tmp[$i]) / 100);
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}
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if ($color_tmp[$i] > 255)
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$color_tmp[$i] = 255;
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}
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$color = '#';
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for ($i = 0; $i < 3; $i++) {
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if ($color_tmp[$i] < 16) {
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$color .= '0' . dechex($color_tmp[$i]);
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} else {
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$color .= dechex($color_tmp[$i]);
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}
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}
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}
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// Fix bad color names
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if (isset($replace_colors[strtolower($color)])) {
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$color = $replace_colors[strtolower($color)];
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}
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// #aabbcc -> #abc
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if (strlen($color) == 7) {
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$color_temp = strtolower($color);
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if ($color_temp{0} === '#' && $color_temp{1} == $color_temp{2} && $color_temp{3} == $color_temp{4} && $color_temp{5} == $color_temp{6}) {
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$color = '#' . $color{1} . $color{3} . $color{5};
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}
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}
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switch (strtolower($color)) {
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/* color name -> hex code */
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case 'black': return '#000';
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case 'fuchsia': return '#f0f';
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case 'white': return '#fff';
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case 'yellow': return '#ff0';
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/* hex code -> color name */
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case '#800000': return 'maroon';
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case '#ffa500': return 'orange';
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case '#808000': return 'olive';
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case '#800080': return 'purple';
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case '#008000': return 'green';
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case '#000080': return 'navy';
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case '#008080': return 'teal';
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case '#c0c0c0': return 'silver';
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case '#808080': return 'gray';
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case '#f00': return 'red';
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}
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||
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return $color;
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||
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}
|
||
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|
||
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/**
|
||
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* Compresses numbers (ie. 1.0 becomes 1 or 1.100 becomes 1.1 )
|
||
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* @param string $subvalue
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||
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* @return string
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||
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* @version 1.2
|
||
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*/
|
||
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function compress_numbers($subvalue) {
|
||
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$unit_values = & $GLOBALS['csstidy']['unit_values'];
|
||
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$color_values = & $GLOBALS['csstidy']['color_values'];
|
||
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|
||
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// for font:1em/1em sans-serif...;
|
||
|
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if ($this->property === 'font') {
|
||
|
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$temp = explode('/', $subvalue);
|
||
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} else {
|
||
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$temp = array($subvalue);
|
||
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}
|
||
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for ($l = 0; $l < count($temp); $l++) {
|
||
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// if we are not dealing with a number at this point, do not optimise anything
|
||
|
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$number = $this->AnalyseCssNumber($temp[$l]);
|
||
|
|
if ($number === false) {
|
||
|
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return $subvalue;
|
||
|
|
}
|
||
|
|
|
||
|
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// Fix bad colors
|
||
|
|
if (in_array($this->property, $color_values)) {
|
||
|
|
if (strlen($temp[$l]) == 3 || strlen($temp[$l]) == 6) {
|
||
|
|
$temp[$l] = '#' . $temp[$l];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$temp[$l] = "0";
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (abs($number[0]) > 0) {
|
||
|
|
if ($number[1] == '' && in_array($this->property, $unit_values, true)) {
|
||
|
|
$number[1] = 'px';
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
$number[1] = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
$temp[$l] = $number[0] . $number[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
return ((count($temp) > 1) ? $temp[0] . '/' . $temp[1] : $temp[0]);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks if a given string is a CSS valid number. If it is,
|
||
|
|
* an array containing the value and unit is returned
|
||
|
|
* @param string $string
|
||
|
|
* @return array ('unit' if unit is found or '' if no unit exists, number value) or false if no number
|
||
|
|
*/
|
||
|
|
function AnalyseCssNumber($string) {
|
||
|
|
// most simple checks first
|
||
|
|
if (strlen($string) == 0 || ctype_alpha($string{0})) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$units = & $GLOBALS['csstidy']['units'];
|
||
|
|
$return = array(0, '');
|
||
|
|
|
||
|
|
$return[0] = floatval($string);
|
||
|
|
if (abs($return[0]) > 0 && abs($return[0]) < 1) {
|
||
|
|
if ($return[0] < 0) {
|
||
|
|
$return[0] = '-' . ltrim(substr($return[0], 1), '0');
|
||
|
|
} else {
|
||
|
|
$return[0] = ltrim($return[0], '0');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Look for unit and split from value if exists
|
||
|
|
foreach ($units as $unit) {
|
||
|
|
$expectUnitAt = strlen($string) - strlen($unit);
|
||
|
|
if (!($unitInString = stristr($string, $unit))) { // mb_strpos() fails with "false"
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$actualPosition = strpos($string, $unitInString);
|
||
|
|
if ($expectUnitAt === $actualPosition) {
|
||
|
|
$return[1] = $unit;
|
||
|
|
$string = substr($string, 0, - strlen($unit));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!is_numeric($string)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Merges selectors with same properties. Example: a{color:red} b{color:red} -> a,b{color:red}
|
||
|
|
* Very basic and has at least one bug. Hopefully there is a replacement soon.
|
||
|
|
* @param array $array
|
||
|
|
* @return array
|
||
|
|
* @access public
|
||
|
|
* @version 1.2
|
||
|
|
*/
|
||
|
|
function merge_selectors(&$array) {
|
||
|
|
$css = $array;
|
||
|
|
foreach ($css as $key => $value) {
|
||
|
|
if (!isset($css[$key])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$newsel = '';
|
||
|
|
|
||
|
|
// Check if properties also exist in another selector
|
||
|
|
$keys = array();
|
||
|
|
// PHP bug (?) without $css = $array; here
|
||
|
|
foreach ($css as $selector => $vali) {
|
||
|
|
if ($selector == $key) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($css[$key] === $vali) {
|
||
|
|
$keys[] = $selector;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($keys)) {
|
||
|
|
$newsel = $key;
|
||
|
|
unset($css[$key]);
|
||
|
|
foreach ($keys as $selector) {
|
||
|
|
unset($css[$selector]);
|
||
|
|
$newsel .= ',' . $selector;
|
||
|
|
}
|
||
|
|
$css[$newsel] = $value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$array = $css;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Removes invalid selectors and their corresponding rule-sets as
|
||
|
|
* defined by 4.1.7 in REC-CSS2. This is a very rudimentary check
|
||
|
|
* and should be replaced by a full-blown parsing algorithm or
|
||
|
|
* regular expression
|
||
|
|
* @version 1.4
|
||
|
|
*/
|
||
|
|
function discard_invalid_selectors(&$array) {
|
||
|
|
$invalid = array('+' => true, '~' => true, ',' => true, '>' => true);
|
||
|
|
foreach ($array as $selector => $decls) {
|
||
|
|
$ok = true;
|
||
|
|
$selectors = array_map('trim', explode(',', $selector));
|
||
|
|
foreach ($selectors as $s) {
|
||
|
|
$simple_selectors = preg_split('/\s*[+>~\s]\s*/', $s);
|
||
|
|
foreach ($simple_selectors as $ss) {
|
||
|
|
if ($ss === '')
|
||
|
|
$ok = false;
|
||
|
|
// could also check $ss for internal structure,
|
||
|
|
// but that probably would be too slow
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!$ok)
|
||
|
|
unset($array[$selector]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Dissolves properties like padding:10px 10px 10px to padding-top:10px;padding-bottom:10px;...
|
||
|
|
* @param string $property
|
||
|
|
* @param string $value
|
||
|
|
* @return array
|
||
|
|
* @version 1.0
|
||
|
|
* @see merge_4value_shorthands()
|
||
|
|
*/
|
||
|
|
function dissolve_4value_shorthands($property, $value) {
|
||
|
|
$shorthands = & $GLOBALS['csstidy']['shorthands'];
|
||
|
|
if (!is_array($shorthands[$property])) {
|
||
|
|
$return[$property] = $value;
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$important = '';
|
||
|
|
if (csstidy::is_important($value)) {
|
||
|
|
$value = csstidy::gvw_important($value);
|
||
|
|
$important = '!important';
|
||
|
|
}
|
||
|
|
$values = explode(' ', $value);
|
||
|
|
|
||
|
|
|
||
|
|
$return = array();
|
||
|
|
if (count($values) == 4) {
|
||
|
|
for ($i = 0; $i < 4; $i++) {
|
||
|
|
$return[$shorthands[$property][$i]] = $values[$i] . $important;
|
||
|
|
}
|
||
|
|
} elseif (count($values) == 3) {
|
||
|
|
$return[$shorthands[$property][0]] = $values[0] . $important;
|
||
|
|
$return[$shorthands[$property][1]] = $values[1] . $important;
|
||
|
|
$return[$shorthands[$property][3]] = $values[1] . $important;
|
||
|
|
$return[$shorthands[$property][2]] = $values[2] . $important;
|
||
|
|
} elseif (count($values) == 2) {
|
||
|
|
for ($i = 0; $i < 4; $i++) {
|
||
|
|
$return[$shorthands[$property][$i]] = (($i % 2 != 0)) ? $values[1] . $important : $values[0] . $important;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
for ($i = 0; $i < 4; $i++) {
|
||
|
|
$return[$shorthands[$property][$i]] = $values[0] . $important;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Explodes a string as explode() does, however, not if $sep is escaped or within a string.
|
||
|
|
* @param string $sep seperator
|
||
|
|
* @param string $string
|
||
|
|
* @return array
|
||
|
|
* @version 1.0
|
||
|
|
*/
|
||
|
|
function explode_ws($sep, $string) {
|
||
|
|
$status = 'st';
|
||
|
|
$to = '';
|
||
|
|
|
||
|
|
$output = array();
|
||
|
|
$num = 0;
|
||
|
|
for ($i = 0, $len = strlen($string); $i < $len; $i++) {
|
||
|
|
switch ($status) {
|
||
|
|
case 'st':
|
||
|
|
if ($string{$i} == $sep && !csstidy::escaped($string, $i)) {
|
||
|
|
++$num;
|
||
|
|
} elseif ($string{$i} === '"' || $string{$i} === '\'' || $string{$i} === '(' && !csstidy::escaped($string, $i)) {
|
||
|
|
$status = 'str';
|
||
|
|
$to = ($string{$i} === '(') ? ')' : $string{$i};
|
||
|
|
(isset($output[$num])) ? $output[$num] .= $string{$i} : $output[$num] = $string{$i};
|
||
|
|
} else {
|
||
|
|
(isset($output[$num])) ? $output[$num] .= $string{$i} : $output[$num] = $string{$i};
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'str':
|
||
|
|
if ($string{$i} == $to && !csstidy::escaped($string, $i)) {
|
||
|
|
$status = 'st';
|
||
|
|
}
|
||
|
|
(isset($output[$num])) ? $output[$num] .= $string{$i} : $output[$num] = $string{$i};
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($output[0])) {
|
||
|
|
return $output;
|
||
|
|
} else {
|
||
|
|
return array($output);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Merges Shorthand properties again, the opposite of dissolve_4value_shorthands()
|
||
|
|
* @param array $array
|
||
|
|
* @return array
|
||
|
|
* @version 1.2
|
||
|
|
* @see dissolve_4value_shorthands()
|
||
|
|
*/
|
||
|
|
function merge_4value_shorthands($array) {
|
||
|
|
$return = $array;
|
||
|
|
$shorthands = & $GLOBALS['csstidy']['shorthands'];
|
||
|
|
|
||
|
|
foreach ($shorthands as $key => $value) {
|
||
|
|
if (isset($array[$value[0]]) && isset($array[$value[1]])
|
||
|
|
&& isset($array[$value[2]]) && isset($array[$value[3]]) && $value !== 0) {
|
||
|
|
$return[$key] = '';
|
||
|
|
|
||
|
|
$important = '';
|
||
|
|
for ($i = 0; $i < 4; $i++) {
|
||
|
|
$val = $array[$value[$i]];
|
||
|
|
if (csstidy::is_important($val)) {
|
||
|
|
$important = '!important';
|
||
|
|
$return[$key] .= csstidy::gvw_important($val) . ' ';
|
||
|
|
} else {
|
||
|
|
$return[$key] .= $val . ' ';
|
||
|
|
}
|
||
|
|
unset($return[$value[$i]]);
|
||
|
|
}
|
||
|
|
$return[$key] = csstidy_optimise::shorthand(trim($return[$key] . $important));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Dissolve background property
|
||
|
|
* @param string $str_value
|
||
|
|
* @return array
|
||
|
|
* @version 1.0
|
||
|
|
* @see merge_bg()
|
||
|
|
* @todo full CSS 3 compliance
|
||
|
|
*/
|
||
|
|
function dissolve_short_bg($str_value) {
|
||
|
|
// don't try to explose background gradient !
|
||
|
|
if (stripos($str_value, "gradient(")!==FALSE)
|
||
|
|
return array('background'=>$str_value);
|
||
|
|
|
||
|
|
$background_prop_default = & $GLOBALS['csstidy']['background_prop_default'];
|
||
|
|
$repeat = array('repeat', 'repeat-x', 'repeat-y', 'no-repeat', 'space');
|
||
|
|
$attachment = array('scroll', 'fixed', 'local');
|
||
|
|
$clip = array('border', 'padding');
|
||
|
|
$origin = array('border', 'padding', 'content');
|
||
|
|
$pos = array('top', 'center', 'bottom', 'left', 'right');
|
||
|
|
$important = '';
|
||
|
|
$return = array('background-image' => null, 'background-size' => null, 'background-repeat' => null, 'background-position' => null, 'background-attachment' => null, 'background-clip' => null, 'background-origin' => null, 'background-color' => null);
|
||
|
|
|
||
|
|
if (csstidy::is_important($str_value)) {
|
||
|
|
$important = ' !important';
|
||
|
|
$str_value = csstidy::gvw_important($str_value);
|
||
|
|
}
|
||
|
|
|
||
|
|
$str_value = csstidy_optimise::explode_ws(',', $str_value);
|
||
|
|
for ($i = 0; $i < count($str_value); $i++) {
|
||
|
|
$have['clip'] = false;
|
||
|
|
$have['pos'] = false;
|
||
|
|
$have['color'] = false;
|
||
|
|
$have['bg'] = false;
|
||
|
|
|
||
|
|
if (is_array($str_value[$i])) {
|
||
|
|
$str_value[$i] = $str_value[$i][0];
|
||
|
|
}
|
||
|
|
$str_value[$i] = csstidy_optimise::explode_ws(' ', trim($str_value[$i]));
|
||
|
|
|
||
|
|
for ($j = 0; $j < count($str_value[$i]); $j++) {
|
||
|
|
if ($have['bg'] === false && (substr($str_value[$i][$j], 0, 4) === 'url(' || $str_value[$i][$j] === 'none')) {
|
||
|
|
$return['background-image'] .= $str_value[$i][$j] . ',';
|
||
|
|
$have['bg'] = true;
|
||
|
|
} elseif (in_array($str_value[$i][$j], $repeat, true)) {
|
||
|
|
$return['background-repeat'] .= $str_value[$i][$j] . ',';
|
||
|
|
} elseif (in_array($str_value[$i][$j], $attachment, true)) {
|
||
|
|
$return['background-attachment'] .= $str_value[$i][$j] . ',';
|
||
|
|
} elseif (in_array($str_value[$i][$j], $clip, true) && !$have['clip']) {
|
||
|
|
$return['background-clip'] .= $str_value[$i][$j] . ',';
|
||
|
|
$have['clip'] = true;
|
||
|
|
} elseif (in_array($str_value[$i][$j], $origin, true)) {
|
||
|
|
$return['background-origin'] .= $str_value[$i][$j] . ',';
|
||
|
|
} elseif ($str_value[$i][$j]{0} === '(') {
|
||
|
|
$return['background-size'] .= substr($str_value[$i][$j], 1, -1) . ',';
|
||
|
|
} elseif (in_array($str_value[$i][$j], $pos, true) || is_numeric($str_value[$i][$j]{0}) || $str_value[$i][$j]{0} === null || $str_value[$i][$j]{0} === '-' || $str_value[$i][$j]{0} === '.') {
|
||
|
|
$return['background-position'] .= $str_value[$i][$j];
|
||
|
|
if (!$have['pos'])
|
||
|
|
$return['background-position'] .= ' '; else
|
||
|
|
$return['background-position'].= ',';
|
||
|
|
$have['pos'] = true;
|
||
|
|
}
|
||
|
|
elseif (!$have['color']) {
|
||
|
|
$return['background-color'] .= $str_value[$i][$j] . ',';
|
||
|
|
$have['color'] = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($background_prop_default as $bg_prop => $default_value) {
|
||
|
|
if ($return[$bg_prop] !== null) {
|
||
|
|
$return[$bg_prop] = substr($return[$bg_prop], 0, -1) . $important;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
$return[$bg_prop] = $default_value . $important;
|
||
|
|
}
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Merges all background properties
|
||
|
|
* @param array $input_css
|
||
|
|
* @return array
|
||
|
|
* @version 1.0
|
||
|
|
* @see dissolve_short_bg()
|
||
|
|
* @todo full CSS 3 compliance
|
||
|
|
*/
|
||
|
|
function merge_bg($input_css) {
|
||
|
|
$background_prop_default = & $GLOBALS['csstidy']['background_prop_default'];
|
||
|
|
// Max number of background images. CSS3 not yet fully implemented
|
||
|
|
$number_of_values = @max(count(csstidy_optimise::explode_ws(',', $input_css['background-image'])), count(csstidy_optimise::explode_ws(',', $input_css['background-color'])), 1);
|
||
|
|
// Array with background images to check if BG image exists
|
||
|
|
$bg_img_array = @csstidy_optimise::explode_ws(',', csstidy::gvw_important($input_css['background-image']));
|
||
|
|
$new_bg_value = '';
|
||
|
|
$important = '';
|
||
|
|
|
||
|
|
// if background properties is here and not empty, don't try anything
|
||
|
|
if (isset($input_css['background']) AND $input_css['background'])
|
||
|
|
return $input_css;
|
||
|
|
|
||
|
|
for ($i = 0; $i < $number_of_values; $i++) {
|
||
|
|
foreach ($background_prop_default as $bg_property => $default_value) {
|
||
|
|
// Skip if property does not exist
|
||
|
|
if (!isset($input_css[$bg_property])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$cur_value = $input_css[$bg_property];
|
||
|
|
// skip all optimisation if gradient() somewhere
|
||
|
|
if (stripos($cur_value, "gradient(")!==FALSE)
|
||
|
|
return $input_css;
|
||
|
|
|
||
|
|
// Skip some properties if there is no background image
|
||
|
|
if ((!isset($bg_img_array[$i]) || $bg_img_array[$i] === 'none')
|
||
|
|
&& ($bg_property === 'background-size' || $bg_property === 'background-position'
|
||
|
|
|| $bg_property === 'background-attachment' || $bg_property === 'background-repeat')) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Remove !important
|
||
|
|
if (csstidy::is_important($cur_value)) {
|
||
|
|
$important = ' !important';
|
||
|
|
$cur_value = csstidy::gvw_important($cur_value);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Do not add default values
|
||
|
|
if ($cur_value === $default_value) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$temp = csstidy_optimise::explode_ws(',', $cur_value);
|
||
|
|
|
||
|
|
if (isset($temp[$i])) {
|
||
|
|
if ($bg_property === 'background-size') {
|
||
|
|
$new_bg_value .= '(' . $temp[$i] . ') ';
|
||
|
|
} else {
|
||
|
|
$new_bg_value .= $temp[$i] . ' ';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$new_bg_value = trim($new_bg_value);
|
||
|
|
if ($i != $number_of_values - 1)
|
||
|
|
$new_bg_value .= ',';
|
||
|
|
}
|
||
|
|
|
||
|
|
// Delete all background-properties
|
||
|
|
foreach ($background_prop_default as $bg_property => $default_value) {
|
||
|
|
unset($input_css[$bg_property]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add new background property
|
||
|
|
if ($new_bg_value !== '')
|
||
|
|
$input_css['background'] = $new_bg_value . $important;
|
||
|
|
elseif(isset ($input_css['background']))
|
||
|
|
$input_css['background'] = 'none';
|
||
|
|
|
||
|
|
return $input_css;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Dissolve font property
|
||
|
|
* @param string $str_value
|
||
|
|
* @return array
|
||
|
|
* @version 1.3
|
||
|
|
* @see merge_font()
|
||
|
|
*/
|
||
|
|
function dissolve_short_font($str_value) {
|
||
|
|
$font_prop_default = & $GLOBALS['csstidy']['font_prop_default'];
|
||
|
|
$font_weight = array('normal', 'bold', 'bolder', 'lighter', 100, 200, 300, 400, 500, 600, 700, 800, 900);
|
||
|
|
$font_variant = array('normal', 'small-caps');
|
||
|
|
$font_style = array('normal', 'italic', 'oblique');
|
||
|
|
$important = '';
|
||
|
|
$return = array('font-style' => null, 'font-variant' => null, 'font-weight' => null, 'font-size' => null, 'line-height' => null, 'font-family' => null);
|
||
|
|
|
||
|
|
if (csstidy::is_important($str_value)) {
|
||
|
|
$important = '!important';
|
||
|
|
$str_value = csstidy::gvw_important($str_value);
|
||
|
|
}
|
||
|
|
|
||
|
|
$have['style'] = false;
|
||
|
|
$have['variant'] = false;
|
||
|
|
$have['weight'] = false;
|
||
|
|
$have['size'] = false;
|
||
|
|
// Detects if font-family consists of several words w/o quotes
|
||
|
|
$multiwords = false;
|
||
|
|
|
||
|
|
// Workaround with multiple font-family
|
||
|
|
$str_value = csstidy_optimise::explode_ws(',', trim($str_value));
|
||
|
|
|
||
|
|
$str_value[0] = csstidy_optimise::explode_ws(' ', trim($str_value[0]));
|
||
|
|
|
||
|
|
for ($j = 0; $j < count($str_value[0]); $j++) {
|
||
|
|
if ($have['weight'] === false && in_array($str_value[0][$j], $font_weight)) {
|
||
|
|
$return['font-weight'] = $str_value[0][$j];
|
||
|
|
$have['weight'] = true;
|
||
|
|
} elseif ($have['variant'] === false && in_array($str_value[0][$j], $font_variant)) {
|
||
|
|
$return['font-variant'] = $str_value[0][$j];
|
||
|
|
$have['variant'] = true;
|
||
|
|
} elseif ($have['style'] === false && in_array($str_value[0][$j], $font_style)) {
|
||
|
|
$return['font-style'] = $str_value[0][$j];
|
||
|
|
$have['style'] = true;
|
||
|
|
} elseif ($have['size'] === false && (is_numeric($str_value[0][$j]{0}) || $str_value[0][$j]{0} === null || $str_value[0][$j]{0} === '.')) {
|
||
|
|
$size = csstidy_optimise::explode_ws('/', trim($str_value[0][$j]));
|
||
|
|
$return['font-size'] = $size[0];
|
||
|
|
if (isset($size[1])) {
|
||
|
|
$return['line-height'] = $size[1];
|
||
|
|
} else {
|
||
|
|
$return['line-height'] = ''; // don't add 'normal' !
|
||
|
|
}
|
||
|
|
$have['size'] = true;
|
||
|
|
} else {
|
||
|
|
if (isset($return['font-family'])) {
|
||
|
|
$return['font-family'] .= ' ' . $str_value[0][$j];
|
||
|
|
$multiwords = true;
|
||
|
|
} else {
|
||
|
|
$return['font-family'] = $str_value[0][$j];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// add quotes if we have several qords in font-family
|
||
|
|
if ($multiwords !== false) {
|
||
|
|
$return['font-family'] = '"' . $return['font-family'] . '"';
|
||
|
|
}
|
||
|
|
$i = 1;
|
||
|
|
while (isset($str_value[$i])) {
|
||
|
|
$return['font-family'] .= ',' . trim($str_value[$i]);
|
||
|
|
$i++;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Fix for 100 and more font-size
|
||
|
|
if ($have['size'] === false && isset($return['font-weight']) &&
|
||
|
|
is_numeric($return['font-weight']{0})) {
|
||
|
|
$return['font-size'] = $return['font-weight'];
|
||
|
|
unset($return['font-weight']);
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($font_prop_default as $font_prop => $default_value) {
|
||
|
|
if ($return[$font_prop] !== null) {
|
||
|
|
$return[$font_prop] = $return[$font_prop] . $important;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
$return[$font_prop] = $default_value . $important;
|
||
|
|
}
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Merges all fonts properties
|
||
|
|
* @param array $input_css
|
||
|
|
* @return array
|
||
|
|
* @version 1.3
|
||
|
|
* @see dissolve_short_font()
|
||
|
|
*/
|
||
|
|
function merge_font($input_css) {
|
||
|
|
$font_prop_default = & $GLOBALS['csstidy']['font_prop_default'];
|
||
|
|
$new_font_value = '';
|
||
|
|
$important = '';
|
||
|
|
// Skip if not font-family and font-size set
|
||
|
|
if (isset($input_css['font-family']) && isset($input_css['font-size'])) {
|
||
|
|
// fix several words in font-family - add quotes
|
||
|
|
if (isset($input_css['font-family'])) {
|
||
|
|
$families = explode(",", $input_css['font-family']);
|
||
|
|
$result_families = array();
|
||
|
|
foreach ($families as $family) {
|
||
|
|
$family = trim($family);
|
||
|
|
$len = strlen($family);
|
||
|
|
if (strpos($family, " ") &&
|
||
|
|
!(($family{0} == '"' && $family{$len - 1} == '"') ||
|
||
|
|
($family{0} == "'" && $family{$len - 1} == "'"))) {
|
||
|
|
$family = '"' . $family . '"';
|
||
|
|
}
|
||
|
|
$result_families[] = $family;
|
||
|
|
}
|
||
|
|
$input_css['font-family'] = implode(",", $result_families);
|
||
|
|
}
|
||
|
|
foreach ($font_prop_default as $font_property => $default_value) {
|
||
|
|
|
||
|
|
// Skip if property does not exist
|
||
|
|
if (!isset($input_css[$font_property])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$cur_value = $input_css[$font_property];
|
||
|
|
|
||
|
|
// Skip if default value is used
|
||
|
|
if ($cur_value === $default_value) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Remove !important
|
||
|
|
if (csstidy::is_important($cur_value)) {
|
||
|
|
$important = '!important';
|
||
|
|
$cur_value = csstidy::gvw_important($cur_value);
|
||
|
|
}
|
||
|
|
|
||
|
|
$new_font_value .= $cur_value;
|
||
|
|
// Add delimiter
|
||
|
|
$new_font_value .= ( $font_property === 'font-size' &&
|
||
|
|
isset($input_css['line-height'])) ? '/' : ' ';
|
||
|
|
}
|
||
|
|
|
||
|
|
$new_font_value = trim($new_font_value);
|
||
|
|
|
||
|
|
// Delete all font-properties
|
||
|
|
foreach ($font_prop_default as $font_property => $default_value) {
|
||
|
|
if ($font_property!=='font' OR !$new_font_value)
|
||
|
|
unset($input_css[$font_property]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add new font property
|
||
|
|
if ($new_font_value !== '') {
|
||
|
|
$input_css['font'] = $new_font_value . $important;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $input_css;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|