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<?php
/**
* LESSPHP wrapper
*
* @package vamtam/execor
*/
/**
* class VamtamLessBridge
*/
class VamtamLessBridge {
/**
* List of option names which are known to be percentages
*
* @var array
*/
public static $percentages = array(
'left-sidebar-width',
'right-sidebar-width',
);
/**
* List of option names which are known to be numbers
*
* @var array
*/
public static $numbers = array(
);
public static function prepare_vars_for_export( $vars_raw, $deprecated = true ) {
global $wpdb, $vamtam_defaults;
$vars_raw = self::flatten_vars( apply_filters( 'vamtam_less_vars', $vars_raw ) );
$vars = array();
foreach ( $vars_raw as $name => $value ) {
if ( is_null( $value ) ) {
continue;
}
if ( preg_match( '/-background-image-attachment-/', $name ) ) {
unset( $vars[ $name ] );
continue;
}
if ( trim( $value ) === '' && preg_match( '/\bbackground-image\b/i', $name ) ) {
$vars[ $name ] = '';
continue;
}
if ( preg_match( '/^[-\w\d]+$/i', $name ) ) {
$vars[ $name ] = self::prepare( $name, $value );
}
}
// -----------------------------------------------------------------------------
$out = array();
foreach ( $vars as $name => $value_raw ) {
$value = $value_raw;
if ( ! $value_raw && ! is_numeric( $value_raw ) ) {
$value = '';
if ( strpos( $name, 'background-attachment' ) !== false ) {
$value = 'scroll';
} elseif ( strpos( $name, 'background-position' ) !== false ) {
$value = 'left top';
} elseif ( strpos( $name, 'background-repeat' ) !== false ) {
$value = 'no-repeat';
} elseif ( strpos( $name, 'background-size' ) !== false ) {
$value = 'auto';
}
}
if ( ! is_null( $value_raw ) && $value_raw !== '' ) {
if ( preg_match( '/-background-image$/', $name ) ) {
$out[ $name ] = $value === '' ? 'none' : "url({$value})";
} elseif ( preg_match( '/-(desktop|tablet|phone)$/', $name ) ) {
if ( is_numeric( $value ) ) {
// If it's not unitless, there should be a relevant prop with the unit.
// Simple naming conventions apply here.
if ( preg_match( '/padding|margin/', $name ) ) {
// These got one unit for multiple values (dimensions).
$unit_prop_name = str_replace(
[ '-top-', '-right-', '-bottom-', '-left-' ],
[ '-unit-', '-unit-', '-unit-', '-unit-' ],
$name );
} else {
$unit_prop_name = str_replace(
[ 'desktop', 'tablet', 'phone' ],
[ 'unit-desktop', 'unit-tablet', 'unit-phone' ] ,
$name );
}
if ( isset( $vars[ $unit_prop_name ] ) ) {
$out[ $name ] = $value . $vars[ $unit_prop_name ];
} else {
//Is unitless.
$out[ $name ] = $value;
}
}
} elseif ( ! preg_match( '/-(variant|font-size|line-height|letter-spacing)$/', $name ) ) {
$out[ $name ] = $value;
}
}
}
// Cleanup phase
// One more loop but we dont have to depend on prop order.
foreach ($out as $name => $value) {
// Background values cleanup.
if ( preg_match( '/-background-type$/', $name ) ) {
if ( $out[ $name ] === 'gradient' ) {
// We dont need the default props.
unset( $out[ str_replace( 'type', 'image', $name ) ] );
unset( $out[ str_replace( 'type', 'color', $name ) ] );
unset( $out[ str_replace( 'type', 'repeat', $name ) ] );
unset( $out[ str_replace( 'type', 'attachment', $name ) ] );
unset( $out[ str_replace( 'type', 'size', $name ) ] );
unset( $out[ str_replace( 'type', 'position', $name ) ] );
// Generate gradient string from props.
$type = $out[ str_replace( 'type', 'gradient-type', $name ) ];
$angle = $out[ str_replace( 'type', 'gradient-angle', $name ) ];
$position = $out[ str_replace( 'type', 'gradient-position', $name ) ];
$color_1 = $out[ str_replace( 'type', 'gradient-color-1', $name ) ];
$color_2 = $out[ str_replace( 'type', 'gradient-color-2', $name ) ];
$location_1 = $out[ str_replace( 'type', 'gradient-location-1', $name ) ];
$location_2 = $out[ str_replace( 'type', 'gradient-location-2', $name ) ];
$generated = $type . '-gradient(' .
( $type === 'linear' ? $angle . 'deg' : 'at ' . $position ) . ', ' .
$color_1 . ' ' . $location_1 . '%, ' .
$color_2 . ' ' . $location_2 . '%)';
$out[ str_replace( 'type', 'generated', $name ) ] = $generated;
// We generated the gradient string, we dont need the gradient props anymore.
unset( $out[ str_replace( 'type', 'gradient-color-1', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-color-2', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-location-1', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-location-2', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-type', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-angle', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-position', $name ) ] );
} elseif ( $out[ $name ] === 'default' ) {
// We dont want the gradient props.
unset( $out[ str_replace( 'type', 'gradient-color-1', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-color-2', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-location-1', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-location-2', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-type', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-angle', $name ) ] );
unset( $out[ str_replace( 'type', 'gradient-position', $name ) ] );
// Generate bg string from props.
$image = isset( $out[ str_replace( 'type', 'image', $name ) ] ) ? $out[ str_replace( 'type', 'image', $name ) ] : 'none';
$color = $out[ str_replace( 'type', 'color', $name ) ];
$repeat = $out[ str_replace( 'type', 'repeat', $name ) ];
$attachment = $out[ str_replace( 'type', 'attachment', $name ) ];
$size = $out[ str_replace( 'type', 'size', $name ) ];
$position = $out[ str_replace( 'type', 'position', $name ) ];
$generated = "$image $position / $size $repeat $attachment $color";
$out[ str_replace( 'type', 'generated', $name ) ] = $generated;
// We generated the bg string, we dont need the bg props anymore, except bg-color.
unset( $out[ str_replace( 'type', 'image', $name ) ] );
unset( $out[ str_replace( 'type', 'repeat', $name ) ] );
unset( $out[ str_replace( 'type', 'attachment', $name ) ] );
unset( $out[ str_replace( 'type', 'size', $name ) ] );
unset( $out[ str_replace( 'type', 'position', $name ) ] );
}
// We dont need the type as well.
unset( $out[ $name ] );
}
// Unit values cleanup.
if ( preg_match( '/-(desktop|tablet|phone)$/', $name ) ) {
if ( ! is_numeric( $value ) && preg_match( '/-unit-/', $name ) ) {
// We remove vars that contain just unit values so we dont output them as css vars.
unset( $out[ $name ] );
}
}
}
return $out;
}
private static function flatten_vars( $vars, $prefix = '' ) {
$flat_vars = array();
foreach ( $vars as $key => $var ) {
if ( is_array( $var ) ) {
$flat_vars = array_merge( $flat_vars, self::flatten_vars( $var, $prefix . $key . '-' ) );
unset( $flat_vars[ $key ] );
} else {
$flat_vars[ $prefix . $key ] = $var;
}
}
return $flat_vars;
}
/**
* Sanitizes a variable
*
* @param string $name option name
* @param string $value option value from db
* @param boolean $returnOriginal whether to return the db value if no good sanitization is found
* @return int|string|null sanitized value
*/
private static function prepare( $name, $value, $returnOriginal = false ) {
$good = true;
$name = preg_replace( '/^vamtam_/', '', $name );
$originalValue = $value;
// duck typing values
if ( preg_match( '/(^share|^has-|^show|-last$|-subsets$|-google$)/i', $name ) ) {
$good = false;
} elseif ( preg_match( '/(%|px|em|vw|vh)$/i', $value ) ) { // definitely a number, leave it as is
} elseif ( preg_match( '/^\\\\[0-9a-f]+$/', $value ) ) { // icon fonts
$value = "'$value'";
} elseif ( is_numeric( $value ) ) { // most likely dimensions, must differentiate between percentages and pixels
if ( in_array( $name, self::$percentages ) ) {
$value .= '%';
} elseif ( in_array( $name, self::$numbers ) || strpos( $name, 'line-height' ) !== false ) {
// as it is
} elseif ( preg_match( '/(size|width|height)$/', $name ) || preg_match( '/(padding|margin)$/', $name ) ) { // treat as px
$value .= 'px';
}
} elseif ( preg_match( '/^#([0-9a-f]{3}|[0-9a-f]{6})$/i', $value ) || ( $value === '' && preg_match( '/-color$/', $name ) ) ) { // colors
// as is
} elseif ( preg_match( '/-font-family$/', $name ) && strpos( $value, ',' ) !== false ) {
// as is
} elseif ( preg_match( '/-(transform|decoration|font-weight|background-type|background-gradient-type|)$/', $name ) ) {
// as is
} elseif ( preg_match( '/^http|^url/i', $value ) || ( preg_match( '/(family|weight)$/', $name ) && isset( $value[0] ) && ! in_array( $value[0], array( '"', "'" ) ) ) ) { // urls and other strings
$value = "'" . str_replace( "'", '"', $value ) . "'";
} elseif ( preg_match( '/^accent(?:-color-)?\d$/', $value ) ) { // accents
$value = vamtam_sanitize_accent( $value );
} else {
if ( ! preg_match( '/\bfamily\b|\burl\b|\bcolor\b|\bbody-link\b/i', $name ) ) {
// check keywords
$keywords = explode( ' ', 'top right bottom left fixed static scroll cover contain auto repeat repeat-x repeat-y no-repeat center normal italic bold 100 200 300 400 500 600 700 800 900 transparent' );
$sub_values = explode( ' ', $value );
foreach ( $sub_values as $s ) {
if ( ! in_array( $s, $keywords ) ) {
$good = false;
break;
}
}
}
}
return $good ? $value : ( $returnOriginal ? $originalValue : null );
}
}