AlkantarClanX12
Your IP : 18.116.49.243
<?php
/**
* CSSTidy Optimising PHP Class
*
* @package TablePress
* @subpackage CSS
* @author Florian Schmitz, Brett Zamir, Nikolay Matsievsky, Cedric Morin, Christopher Finke, Mark Scherer, Tobias Bäthge
* @since 1.0.0
*/
// Prohibit direct script loading.
defined( 'ABSPATH' ) || die( 'No direct script access allowed!' );
/**
* CSS Optimising Class
*
* This class optimises CSS data generated by CSSTidy.
*
* @package CSSTidy
* @version 1.0
*/
class TablePress_CSSTidy_Optimise {
/**
* TablePress_CSSTidy instance.
*
* @since 1.0.0
*/
public \TablePress_CSSTidy $parser;
/**
* The parsed CSS.
*
* @since 1.0.0
*/
public array $css = array();
/**
* The current sub-value.
*
* @since 1.0.0
*/
public string $sub_value = '';
/**
* The current at rule (@media).
*
* @since 1.0.0
*/
public string $at = '';
/**
* The current selector.
*
* @since 1.0.0
*/
public string $selector = '';
/**
* The current property.
*
* @since 1.0.0
*/
public string $property = '';
/**
* The current value.
*
* @since 1.0.0
*/
public string $value = '';
/**
* Constructor.
*
* @since 1.0.0
*
* @param TablePress_CSSTidy $csstidy Instance of the TablePress_CSSTidy class.
*/
public function __construct( TablePress_CSSTidy $csstidy ) {
$this->parser = $csstidy;
$this->css = &$csstidy->css;
$this->sub_value = &$csstidy->sub_value;
$this->at = &$csstidy->at;
$this->selector = &$csstidy->selector;
$this->property = &$csstidy->property;
$this->value = &$csstidy->value;
}
/**
* Optimises $css after parsing.
*
* @since 1.0.0
*/
public function postparse(): void {
if ( $this->parser->get_cfg( 'preserve_css' ) ) {
return;
}
if ( 2 === (int) $this->parser->get_cfg( 'merge_selectors' ) ) {
foreach ( $this->css as $medium => $value ) {
if ( is_array( $value ) ) {
$this->merge_selectors( $this->css[ $medium ] );
}
}
}
if ( $this->parser->get_cfg( 'discard_invalid_selectors' ) ) {
foreach ( $this->css as $medium => $value ) {
if ( is_array( $value ) ) {
$this->discard_invalid_selectors( $this->css[ $medium ] );
}
}
}
if ( $this->parser->get_cfg( 'optimise_shorthands' ) > 0 ) {
foreach ( $this->css as $medium => $value ) {
if ( is_array( $value ) ) {
foreach ( $value as $selector => $value1 ) {
$this->css[ $medium ][ $selector ] = $this->merge_4value_shorthands( $this->css[ $medium ][ $selector ] );
if ( $this->parser->get_cfg( 'optimise_shorthands' ) < 2 ) {
continue;
}
$this->css[ $medium ][ $selector ] = $this->merge_font( $this->css[ $medium ][ $selector ] );
if ( $this->parser->get_cfg( 'optimise_shorthands' ) < 3 ) {
continue;
}
$this->css[ $medium ][ $selector ] = $this->merge_bg( $this->css[ $medium ][ $selector ] );
if ( empty( $this->css[ $medium ][ $selector ] ) ) {
unset( $this->css[ $medium ][ $selector ] );
}
}
}
}
}
}
/**
* Optimises values
*
* @since 1.0.0
*/
public function value(): void {
$shorthands = &$this->parser->data['csstidy']['shorthands'];
// Optimise shorthand properties.
if ( isset( $shorthands[ $this->property ] ) && $this->parser->get_cfg( 'optimise_shorthands' ) > 0 ) {
$temp = $this->shorthand( $this->value ); // FIXME - move.
if ( $temp !== $this->value ) {
$this->parser->log( 'Optimised shorthand notation (' . $this->property . '): Changed "' . $this->value . '" to "' . $temp . '"', 'Information' );
}
$this->value = $temp;
}
// Remove whitespace at !important.
if ( $this->value !== $this->compress_important( $this->value ) ) {
$this->parser->log( 'Optimised !important', 'Information' );
}
}
/**
* Optimises shorthands.
*
* @since 1.0.0
*/
public function shorthands(): void {
$shorthands = &$this->parser->data['csstidy']['shorthands'];
if ( ! $this->parser->get_cfg( 'optimise_shorthands' ) || $this->parser->get_cfg( 'preserve_css' ) ) {
return;
}
if ( 'font' === $this->property && $this->parser->get_cfg( 'optimise_shorthands' ) > 1 ) {
$this->css[ $this->at ][ $this->selector ]['font'] = '';
$this->parser->merge_css_blocks( $this->at, $this->selector, $this->dissolve_short_font( $this->value ) );
}
if ( 'background' === $this->property && $this->parser->get_cfg( 'optimise_shorthands' ) > 2 ) {
$this->css[ $this->at ][ $this->selector ]['background'] = '';
$this->parser->merge_css_blocks( $this->at, $this->selector, $this->dissolve_short_bg( $this->value ) );
}
if ( isset( $shorthands[ $this->property ] ) ) {
$this->parser->merge_css_blocks( $this->at, $this->selector, $this->dissolve_4value_shorthands( $this->property, $this->value ) );
if ( is_array( $shorthands[ $this->property ] ) ) {
$this->css[ $this->at ][ $this->selector ][ $this->property ] = '';
}
}
}
/**
* Optimises a sub-value.
*
* @since 1.0.0
*/
public function subvalue(): void {
$replace_colors = &$this->parser->data['csstidy']['replace_colors'];
$this->sub_value = trim( $this->sub_value );
if ( '' === $this->sub_value ) { // caution : '0'.
return;
}
$important = '';
if ( $this->parser->is_important( $this->sub_value ) ) {
$important = ' !important';
}
$this->sub_value = $this->parser->gvw_important( $this->sub_value );
// Compress font-weight.
if ( 'font-weight' === $this->property && $this->parser->get_cfg( 'compress_font-weight' ) ) {
if ( 'bold' === $this->sub_value ) {
$this->sub_value = '700';
$this->parser->log( 'Optimised font-weight: Changed "bold" to "700"', 'Information' );
} elseif ( 'normal' === $this->sub_value ) {
$this->sub_value = '400';
$this->parser->log( 'Optimised font-weight: Changed "normal" to "400"', 'Information' );
}
}
$temp = $this->compress_numbers( $this->sub_value );
if ( 0 !== strcasecmp( $temp, $this->sub_value ) ) {
if ( strlen( $temp ) > strlen( $this->sub_value ) ) {
$this->parser->log( 'Fixed invalid number: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Warning' );
} else {
$this->parser->log( 'Optimised number: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Information' );
}
$this->sub_value = $temp;
}
if ( $this->parser->get_cfg( 'compress_colors' ) ) {
$temp = $this->cut_color( $this->sub_value );
if ( $temp !== $this->sub_value ) {
if ( isset( $replace_colors[ $this->sub_value ] ) ) {
$this->parser->log( 'Fixed invalid color name: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Warning' );
} else {
$this->parser->log( 'Optimised color: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Information' );
}
$this->sub_value = $temp;
}
}
$this->sub_value .= $important;
}
/**
* Compresses shorthand values.
*
* Example: `margin: 1px 1px 1px 1px` will become `margin: 1px`.
*
* @since 1.0.0
*
* @param string $value Shorthand value.
* @return string Compressed value.
*/
public function shorthand( string $value ): string {
$important = '';
if ( $this->parser->is_important( $value ) ) {
$values = $this->parser->gvw_important( $value );
$important = ' !important';
} else {
$values = $value;
}
$values = explode( ' ', $values );
switch ( count( $values ) ) {
case 4:
if ( $values[0] === $values[1] && $values[0] === $values[2] && $values[0] === $values[3] ) {
return $values[0] . $important;
} elseif ( $values[1] === $values[3] && $values[0] === $values[2] ) {
return $values[0] . ' ' . $values[1] . $important;
} elseif ( $values[1] === $values[3] ) {
return $values[0] . ' ' . $values[1] . ' ' . $values[2] . $important;
}
break;
case 3:
if ( $values[0] === $values[1] && $values[0] === $values[2] ) {
return $values[0] . $important;
} elseif ( $values[0] === $values[2] ) {
return $values[0] . ' ' . $values[1] . $important;
}
break;
case 2:
if ( $values[0] === $values[1] ) {
return $values[0] . $important;
}
break;
}
return $value;
}
/**
* Removes unnecessary whitespace in ! important.
*
* @since 1.0.0
*
* @param string $a_string String.
* @return string Cleaned string.
*/
public function compress_important( string &$a_string ): string {
if ( $this->parser->is_important( $a_string ) ) {
$a_string = $this->parser->gvw_important( $a_string ) . ' !important';
}
return $a_string;
}
/**
* Color compression function. Converts all rgb() values to #-values and uses the short-form if possible. Also replaces 4 color names by #-values.
*
* @since 1.0.0
*
* @param string $color Color value.
* @return string Compressed color.
*/
public function cut_color( string $color ): string {
$replace_colors = &$this->parser->data['csstidy']['replace_colors'];
// If it's a string, don't touch it!
if ( str_starts_with( $color, "'" ) || str_starts_with( $color, '"' ) ) {
return $color;
}
// Complex gradient expressions.
if ( str_contains( $color, '(' ) && 0 !== strncasecmp( $color, 'rgb(', 4 ) && 0 !== strncasecmp( $color, 'rgba(', 5 ) ) {
// Don't touch properties within MSIE filters, those are too sensitive.
if ( false !== stripos( $color, 'progid:' ) ) {
return $color;
}
preg_match_all( ',rgba?\([^)]+\),i', $color, $matches, PREG_SET_ORDER );
if ( count( $matches ) ) {
foreach ( $matches as $m ) {
$color = str_replace( $m[0], $this->cut_color( $m[0] ), $color );
}
}
preg_match_all( ',#[0-9a-f]{6}(?=[^0-9a-f]),i', $color, $matches, PREG_SET_ORDER );
if ( count( $matches ) ) {
foreach ( $matches as $m ) {
$color = str_replace( $m[0], $this->cut_color( $m[0] ), $color );
}
}
return $color;
}
// rgb(0,0,0) -> #000000 (or #000 in this case later).
if (
// Be sure to not corrupt a rgb with calc() value.
( 0 === strncasecmp( $color, 'rgb(', 4 ) && false === strpos( $color, '(', 4 ) ) || ( 0 === strncasecmp( $color, 'rgba(', 5 ) && false === strpos( $color, '(', 5 ) )
) {
$color_tmp = explode( '(', $color, 2 );
$color_tmp = rtrim( end( $color_tmp ), ')' );
if ( str_contains( $color_tmp, '/' ) ) {
$color_tmp = explode( '/', $color_tmp, 2 );
$color_parts = explode( ' ', trim( reset( $color_tmp ) ), 3 );
while ( count( $color_parts ) < 3 ) { // phpcs:ignore Squiz.PHP.DisallowSizeFunctionsInLoops.Found
$color_parts[] = 0;
}
$color_parts[] = end( $color_tmp );
} else {
$color_parts = explode( ',', $color_tmp, 4 );
}
$color_parts_count = count( $color_parts );
for ( $i = 0; $i < $color_parts_count; $i++ ) {
$color_parts[ $i ] = trim( $color_parts[ $i ] );
if ( str_ends_with( $color_parts[ $i ], '%' ) ) {
$color_parts[ $i ] = round( ( 255 * intval( $color_parts[ $i ] ) ) / 100 );
} elseif ( $i > 2 ) {
// 4th argument is alpha layer between 0 and 1 (if not %).
$color_parts[ $i ] = round( 255 * floatval( $color_parts[ $i ] ) );
}
$color_parts[ $i ] = intval( $color_parts[ $i ] );
if ( $color_parts[ $i ] > 255 ) {
$color_parts[ $i ] = 255;
}
}
$color = '#';
// 3 or 4 parts depending on alpha layer.
$nb = min( max( count( $color_parts ), 3 ), 4 );
for ( $i = 0; $i < $nb; $i++ ) {
if ( ! isset( $color_parts[ $i ] ) ) {
$color_parts[ $i ] = 0;
}
if ( $color_parts[ $i ] < 16 ) {
$color .= '0' . dechex( $color_parts[ $i ] );
} else {
$color .= dechex( $color_parts[ $i ] );
}
}
}
// Fix bad color names.
if ( isset( $replace_colors[ strtolower( $color ) ] ) ) {
$color = $replace_colors[ strtolower( $color ) ];
}
if ( 7 === strlen( $color ) ) {
// #aabbcc -> #abc
$color_temp = strtolower( $color );
if ( '#' === $color_temp[0] && $color_temp[1] === $color_temp[2] && $color_temp[3] === $color_temp[4] && $color_temp[5] === $color_temp[6] ) {
$color = '#' . $color[1] . $color[3] . $color[5];
}
} elseif ( 9 === strlen( $color ) ) {
// #aabbccdd -> #abcd
$color_temp = strtolower( $color );
if ( '#' === $color_temp[0] && $color_temp[1] === $color_temp[2] && $color_temp[3] === $color_temp[4] && $color_temp[5] === $color_temp[6] && $color_temp[7] === $color_temp[8] ) {
$color = '#' . $color[1] . $color[3] . $color[5] . $color[7];
}
}
switch ( strtolower( $color ) ) {
/* color name -> hex code */
case 'black':
return '#000';
case 'fuchsia':
return '#f0f';
case 'white':
return '#fff';
case 'yellow':
return '#ff0';
/* hex code -> color name */
case '#800000':
return 'maroon';
case '#ffa500':
return 'orange';
case '#808000':
return 'olive';
case '#800080':
return 'purple';
case '#008000':
return 'green';
case '#000080':
return 'navy';
case '#008080':
return 'teal';
case '#c0c0c0':
return 'silver';
case '#808080':
return 'gray';
case '#f00':
return 'red';
}
return $color;
}
/**
* Compresses numbers (ie. 1.0 becomes 1 or 1.100 becomes 1.1).
*
* @since 1.0.0
*
* @param string $subvalue Value.
* @return string Compressed value.
*/
public function compress_numbers( string $subvalue ): string {
$unit_values = &$this->parser->data['csstidy']['unit_values'];
$color_values = &$this->parser->data['csstidy']['color_values'];
// for font:1em/1em sans-serif...;.
if ( 'font' === $this->property ) {
$temp = explode( '/', $subvalue );
} else {
$temp = array( $subvalue );
}
$temp_count = count( $temp );
for ( $l = 0; $l < $temp_count; $l++ ) {
// If we are not dealing with a number at this point, do not optimize anything.
$number = $this->analyse_css_number( $temp[ $l ] );
if ( false === $number ) {
return $subvalue;
}
// Fix bad colors.
if ( in_array( $this->property, $color_values, true ) ) {
if ( 3 === strlen( $temp[ $l ] ) || 6 === strlen( $temp[ $l ] ) ) {
$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';
}
} elseif ( 's' !== $number[1] && 'ms' !== $number[1] ) {
$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.
*
* @since 1.0.0
*
* @param string $a_string String.
* @return array{int|string, string}|false ('unit' if unit is found or '' if no unit exists, number value) or false if no number.
*/
public function analyse_css_number( string $a_string ) /* : array|false */ {
// Most simple checks first.
if ( 0 === strlen( $a_string ) || ctype_alpha( $a_string[0] ) ) {
return false;
}
$units = &$this->parser->data['csstidy']['units'];
$return = array( 0, '' );
$return[0] = (float) $a_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 ) {
$expect_unit_at = strlen( $a_string ) - strlen( $unit );
if ( ! ( $unit_in_string = stristr( $a_string, $unit ) ) ) { // phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.Found,Squiz.PHP.DisallowMultipleAssignments.FoundInControlStructure
continue;
}
$actual_position = strpos( $a_string, $unit_in_string );
if ( $expect_unit_at === $actual_position ) {
$return[1] = $unit;
$a_string = substr( $a_string, 0, - strlen( $unit ) );
break;
}
}
if ( ! is_numeric( $a_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.
*
* @since 1.0.0
*
* @param array<string, mixed> $an_array List of selectors. This parameter is modified by reference.
*/
public function merge_selectors( array &$an_array ): void {
$css = $an_array;
foreach ( $css as $key => $value ) {
if ( ! isset( $css[ $key ] ) ) {
continue;
}
// Check if properties also exist in another selector.
$keys = array();
// PHP bug (?) without $css = $an_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;
}
}
$an_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.
*
* @since 1.0.0
*
* @param array<string, mixed> $an_array [description].
*/
public function discard_invalid_selectors( array &$an_array ): void {
foreach ( $an_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( $an_array[ $selector ] );
}
}
}
/**
* Dissolves properties like padding:10px 10px 10px to padding-top:10px;padding-bottom:10px;...
*
* @since 1.0.0
*
* @param string $property [description].
* @param string $value [description].
* @return array [description]
*/
public function dissolve_4value_shorthands( string $property, string $value ): array {
$return = array();
$shorthands = &$this->parser->data['csstidy']['shorthands'];
if ( ! is_array( $shorthands[ $property ] ) ) {
$return[ $property ] = $value;
return $return;
}
$important = '';
if ( $this->parser->is_important( $value ) ) {
$value = $this->parser->gvw_important( $value );
$important = ' !important';
}
$values = explode( ' ', $value );
if ( 4 === count( $values ) ) {
for ( $i = 0; $i < 4; $i++ ) {
$return[ $shorthands[ $property ][ $i ] ] = $values[ $i ] . $important;
}
} elseif ( 3 === count( $values ) ) {
$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 ( 2 === count( $values ) ) {
for ( $i = 0; $i < 4; $i++ ) {
$return[ $shorthands[ $property ][ $i ] ] = ( 0 !== $i % 2 ) ? $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.
*
* @since 1.0.0
*
* @param string $sep Separator.
* @param string $a_string String.
* @return array [description]
*/
public function explode_ws( string $sep, string $a_string ): array {
$status = 'st';
$to = '';
$output = array();
$num = 0;
for ( $i = 0, $len = strlen( $a_string ); $i < $len; $i++ ) {
switch ( $status ) {
case 'st':
if ( $a_string[ $i ] === $sep && ! $this->parser->escaped( $a_string, $i ) ) {
++$num;
} elseif ( '"' === $a_string[ $i ] || "'" === $a_string[ $i ] || ( '(' === $a_string[ $i ] && ! $this->parser->escaped( $a_string, $i ) ) ) {
$status = 'str';
$to = ( '(' === $a_string[ $i ] ) ? ')' : $a_string[ $i ];
( isset( $output[ $num ] ) ) ? $output[ $num ] .= $a_string[ $i ] : $output[ $num ] = $a_string[ $i ];
} else {
( isset( $output[ $num ] ) ) ? $output[ $num ] .= $a_string[ $i ] : $output[ $num ] = $a_string[ $i ];
}
break;
case 'str':
if ( $a_string[ $i ] === $to && ! $this->parser->escaped( $a_string, $i ) ) {
$status = 'st';
}
( isset( $output[ $num ] ) ) ? $output[ $num ] .= $a_string[ $i ] : $output[ $num ] = $a_string[ $i ];
break;
}
}
if ( isset( $output[0] ) ) {
return $output;
} else {
return array( $output );
}
}
/**
* Merges Shorthand properties again, the opposite of dissolve_4value_shorthands().
*
* @since 1.0.0
*
* @param array<string, mixed> $an_array [description].
* @return array<string, mixed> [description]
*/
public function merge_4value_shorthands( array $an_array ): array {
$return = $an_array;
$shorthands = &$this->parser->data['csstidy']['shorthands'];
foreach ( $shorthands as $key => $value ) {
if ( 0 !== $value && isset( $an_array[ $value[0] ], $an_array[ $value[1] ], $an_array[ $value[2] ], $an_array[ $value[3] ] ) ) {
$return[ $key ] = '';
$important = '';
for ( $i = 0; $i < 4; $i++ ) {
$val = $an_array[ $value[ $i ] ];
if ( $this->parser->is_important( $val ) ) {
$important = ' !important';
$return[ $key ] .= $this->parser->gvw_important( $val ) . ' ';
} else {
$return[ $key ] .= $val . ' ';
}
unset( $return[ $value[ $i ] ] );
}
$return[ $key ] = $this->shorthand( trim( $return[ $key ] . $important ) );
}
}
return $return;
}
/**
* Dissolve background property.
*
* @todo Full CSS3 compliance.
*
* @since 1.0.0
*
* @param string $str_value String value.
* @return array<string, string|null> Array.
*/
public function dissolve_short_bg( string $str_value ): array {
// Don't try to explode background gradient!
if ( false !== stripos( $str_value, 'gradient(' ) ) {
return array( 'background' => $str_value );
}
$background_prop_default = &$this->parser->data['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 ( $this->parser->is_important( $str_value ) ) {
$important = ' !important';
$str_value = $this->parser->gvw_important( $str_value );
}
$have = array();
$str_value = $this->explode_ws( ',', $str_value );
$str_value_count = count( $str_value );
for ( $i = 0; $i < $str_value_count; $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 ] = $this->explode_ws( ' ', trim( $str_value[ $i ] ) );
$str_value_i_count = count( $str_value[ $i ] );
for ( $j = 0; $j < $str_value_i_count; $j++ ) {
if ( false === $have['bg'] && ( str_starts_with( $str_value[ $i ][ $j ], 'url(' ) || 'none' === $str_value[ $i ][ $j ] ) ) {
$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] ) || is_null( $str_value[ $i ][ $j ][0] ) || '-' === $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 ( null !== $return[ $bg_prop ] ) {
$return[ $bg_prop ] = substr( $return[ $bg_prop ], 0, -1 ) . $important;
} else {
$return[ $bg_prop ] = $default_value . $important;
}
}
return $return;
}
/**
* Merges all background properties.
*
* @todo Full CSS3 compliance.
*
* @since 1.0.0
*
* @param array<string, mixed> $input_css CSS.
* @return array<string, mixed> Array.
*/
public function merge_bg( array $input_css ): array {
$background_prop_default = &$this->parser->data['csstidy']['background_prop_default'];
// Max number of background images. CSS3 not yet fully implemented.
$number_of_values = @max( count( $this->explode_ws( ',', $input_css['background-image'] ) ), count( $this->explode_ws( ',', $input_css['background-color'] ) ), 1 ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
// Array with background images to check if BG image exists.
$bg_img_array = @$this->explode_ws( ',', $this->parser->gvw_important( $input_css['background-image'] ) ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
$new_bg_value = '';
$important = '';
// If background properties is here and not empty, don't try anything.
if ( isset( $input_css['background'] ) && $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 ( false !== stripos( $cur_value, 'gradient(' ) ) {
return $input_css;
}
// Skip some properties if there is no background image.
if ( ( ! isset( $bg_img_array[ $i ] ) || 'none' === $bg_img_array[ $i ] )
&& ( 'background-size' === $bg_property || 'background-position' === $bg_property || 'background-attachment' === $bg_property || 'background-repeat' === $bg_property ) ) {
continue;
}
// Remove !important.
if ( $this->parser->is_important( $cur_value ) ) {
$important = ' !important';
$cur_value = $this->parser->gvw_important( $cur_value );
}
// Do not add default values.
if ( $cur_value === $default_value ) {
continue;
}
$temp = $this->explode_ws( ',', $cur_value );
if ( isset( $temp[ $i ] ) ) {
if ( 'background-size' === $bg_property ) {
$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.
*
* @since 1.0.0
*
* @param string $str_value [description].
* @return array<string, string|null> [description]
*/
public function dissolve_short_font( string $str_value ): array {
$font_prop_default = &$this->parser->data['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 ( $this->parser->is_important( $str_value ) ) {
$important = ' !important';
$str_value = $this->parser->gvw_important( $str_value );
}
$have = array();
$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-families.
$str_value = $this->explode_ws( ',', trim( $str_value ) );
$str_value[0] = $this->explode_ws( ' ', trim( $str_value[0] ) );
$str_value_0_count = count( $str_value[0] );
for ( $j = 0; $j < $str_value_0_count; $j++ ) {
if ( false === $have['weight'] && in_array( $str_value[0][ $j ], $font_weight, false ) ) { // phpcs:ignore WordPress.PHP.StrictInArray.FoundNonStrictFalse
$return['font-weight'] = $str_value[0][ $j ];
$have['weight'] = true;
} elseif ( false === $have['variant'] && in_array( $str_value[0][ $j ], $font_variant, true ) ) {
$return['font-variant'] = $str_value[0][ $j ];
$have['variant'] = true;
} elseif ( false === $have['style'] && in_array( $str_value[0][ $j ], $font_style, true ) ) {
$return['font-style'] = $str_value[0][ $j ];
$have['style'] = true;
} elseif ( false === $have['size'] && ( is_numeric( $str_value[0][ $j ][0] ) || is_null( $str_value[0][ $j ][0] ) || '.' === $str_value[0][ $j ][0] ) ) {
$size = $this->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 { // phpcs:ignore Universal.ControlStructures.DisallowLonelyIf.Found
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 words in font-family.
if ( $multiwords ) {
$return['font-family'] = '"' . $return['font-family'] . '"';
}
$i = 1;
while ( isset( $str_value[ $i ] ) ) {
$return['font-family'] .= ',' . trim( $str_value[ $i ] );
++$i;
}
// Fix for font-size 100 and higher.
if ( false === $have['size'] && 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 ( null !== $return[ $font_prop ] ) {
$return[ $font_prop ] = $return[ $font_prop ] . $important;
} else {
$return[ $font_prop ] = $default_value . $important;
}
}
return $return;
}
/**
* Merges all fonts properties.
*
* @since 1.0.0
*
* @param array<string, string> $input_css [description].
* @return array<string, string> [description]
*/
public function merge_font( array $input_css ): array {
$font_prop_default = &$this->parser->data['csstidy']['font_prop_default'];
$new_font_value = '';
$important = '';
// Skip if no font-family and font-size set.
if ( isset( $input_css['font-family'], $input_css['font-size'] ) && 'inherit' !== $input_css['font-family'] ) {
// Fix several words in font-family - add quotes.
$families = explode( ',', $input_css['font-family'] );
$result_families = array();
foreach ( $families as $family ) {
$family = trim( $family );
$len = strlen( $family );
if ( str_contains( $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 ( $this->parser->is_important( $cur_value ) ) {
$important = ' !important';
$cur_value = $this->parser->gvw_important( $cur_value );
}
$new_font_value .= $cur_value;
// Add delimiter.
$new_font_value .= ( 'font-size' === $font_property && 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' !== $font_property || ! $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;
}
} // class TablePress_CSSTidy_Optimise