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<?php
class Avada_Sanitize {
/**
* Sanitize values like for example 10px, 30% etc.
*/
public static function size( $value ) {
// Trim the value
$value = trim( $value );
if ( in_array( $value, array( 'auto', 'inherit', 'initial' ) ) ) {
return $value;
}
// Return empty if there are no numbers in the value.
// Prevents some CSS errors.
if ( ! preg_match( '#[0-9]#' , $value ) ) {
return;
}
return self::number( $value ) . self::get_unit( $value );
}
/**
* Return the unit of a given value
*
* @since 4.0
*
* @param string $value A value with unit
* @return string The unit of the given value
*/
public static function get_unit( $value ) {
$unit_used = '';
// Trim the value
$value = trim( $value );
// The array of valid units
$units = array( 'rem', 'em', 'ex', '%', 'px', 'cm', 'mm', 'in', 'pt', 'pc', 'ch', 'vh', 'vw', 'vmin', 'vmax' );
foreach ( $units as $unit ) {
// Find what unit we're using
if ( false !== strpos( $value, $unit ) ) {
$unit_used = $unit;
}
}
// Hack for rem values.
if ( 'em' === $unit_used && false !== strpos( $value, 'rem' ) ) {
$unit_used = 'rem';
}
return $unit_used;
}
/**
* Adds a specified unit to a unitless value and keeps the value unchanged if a unit is present.
* A forced unit replace can also be done.
*
* @param string $value A value like a margin setting etc., with or without unit
* @param string $unit A unit that should be appended to unitless values
* @param string $unit_handling 'add': only add $unit if $value is unitless.
* 'force_replace': replace the unit of $value with $unit
*/
public static function get_value_with_unit( $value, $unit = 'px', $unit_handling = 'add' ) {
$value = trim( $value );
if ( in_array( $value, array( 'auto', 'inherit', 'initial' ) ) ) {
return $value;
}
// Return empty if there are no numbers in the value.
// Prevents some CSS errors.
if ( ! preg_match( '#[0-9]#' , $value ) ) {
return;
}
// Trim the value
$raw_value = self::number( $value );
// If the value already has an unit, return the original string
if ( $value == $raw_value ) {
return $raw_value . $unit;
} elseif ( $unit_handling == 'force_replace' ) {
return $raw_value . $unit;
}
return $value;
}
/**
* Sanitises a HEX value.
* (part of the Kirki Toolkit)
* The way this works is by splitting the string in 6 substrings.
* Each sub-string is individually sanitized, and the result is then returned.
*
* @var string The hex value of a color
* @param boolean Whether we want to include a hash (#) at the beginning or not
* @return string The sanitized hex color.
*/
public static function hex( $color ) {
return Avada_Color::sanitize_hex( $color );
}
/**
* Sanitizes an rgba color value
* (part of the Kirki Toolkit)
*/
public static function rgba( $value ) {
return Avada_Color::sanitize_rgba( $value );
}
/**
* Sanitize colors.
* (part of the Kirki Toolkit)
* Determine if the current value is a hex or an rgba color and call the appropriate method.
*
* @since 0.8.5
*
* @param $value string hex or rgba color
* @param $default string hex or rgba color
* @return string
*/
public static function color( $value ) {
return Avada_Color::sanitize_color( $value );
}
/**
* Gets the rgba value of the $hex color.
* (part of the Kirki Toolkit)
*
* @var string The hex value of a color
* @param int Opacity level (1-100)
* @return string
*/
public static function get_rgba( $hex = '#fff', $opacity = 100 ) {
return Avada_Color::get_rgba( $hex, $opacity );
}
/**
* Gets the rgb value of the $hex color.
* (part of the Kirki Toolkit)
*
* @var string The hex value of a color
* @param boolean Whether we want to implode the values or not
* @return mixed array|string
*/
public static function get_rgb( $hex, $implode = false ) {
return Avada_Color::get_rgb( $hex, $implode );
}
/**
* Strips the alpha value from an RGBA color string.
*
* @param string $rgba The RGBA color string.
* @return string The corresponding RGB string.
*/
public static function rgba_to_rgb( $rgba ) {
return Avada_Color::rgba_to_rgb( $rgba );
}
/**
* Properly escape some characters in image URLs so that they may be properly used in CSS.
* From W3C:
* > Some characters appearing in an unquoted URI,
* > such as parentheses, white space characters, single quotes (') and double quotes ("),
* > must be escaped with a backslash so that the resulting URI value is a URI token: '\(', '\)'.
*/
public static function css_asset_url( $url ) {
$url = esc_url_raw( $url );
$url = str_replace( '(', '\(', $url );
$url = str_replace( ')', '\)', $url );
$url = str_replace( '"', '\"', $url );
$url = str_replace( ' ', '\ ', $url );
$url = str_replace( "'", "\'", $url );
return $url;
}
/**
* Removes the scheme of the passed URL to fit the current page
*
* @var string The URL that needs sanitation
* @return string Full URL without scheme
*/
public static function get_url_with_correct_scheme( $url ) {
$url = str_replace( 'http://', '//', str_replace( 'https://', '//', $url ) );
return $url;
}
/**
* Sanitizes a number value
*
* @var string
* @return float
*/
public static function number( $value ) {
return filter_var( $value, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION );
}
/**
* Orders an array like another one with the same keys
*
* @since 4.0
*
* @param array $to_be_ordered The array that should be ordered.
* @param array $order_like The array that should be used to order $to_be_ordered.
*
* @return array The correctly ordered version of $to_be_ordered
*/
public static function order_array_like_array( Array $to_be_ordered, Array $order_like ) {
$ordered = array();
foreach( $order_like as $key => $value ) {
if ( array_key_exists( $key, $to_be_ordered ) ) {
$ordered[$key] = $to_be_ordered[$key];
unset( $to_be_ordered[$key] );
}
}
return $ordered + $to_be_ordered;
}
}
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