<?php
/**
* @author ThemePunch <info@themepunch.com>
* @link https://www.themepunch.com/
* @copyright 2019 ThemePunch
*/
if(!defined('ABSPATH')) exit();
if(!class_exists('RSColorpicker')){
class RSColorpicker {
/**
* @since 5.3.1.6
*/
public function __construct(){
}
/**
* get a value
* @since 5.3.1.6
*/
public static function get($val){
if(!$val || empty($val)) return 'transparent';
$process = RSColorpicker::process($val, true);
return $process[0];
}
/**
* parse a color
* @since 5.3.1.6
*/
public static function parse($val, $prop, $returnColorType){
$val = RSColorpicker::process($val, true);
$ar = array();
if(!$prop){
$ar[0] = $val[0];
}else{
$ar[0] = $prop . ': ' . $val[0] . ';';
}
if($returnColorType) $ar[1] = $val[1];
return $ar;
}
/**
* convert a color
* @since 5.3.1.6
*/
public static function convert($color, $opacity = '100'){
if($opacity == 'transparent'){
return 'rgba(0,0,0,0)';
}
if($color == '') return '';
if(strpos($color, '[{') !== false || strpos($color, 'gradient') !== false) return RSColorpicker::get($color);
if(!is_bool($opacity) && ''.$opacity === '0'){
return 'transparent';
}
if($opacity == -1 || !$opacity || empty($opacity) || !is_numeric($opacity) || $color == 'transparent' || $opacity === 1 || $opacity === 100){
if(strpos($color, 'rgba') === false && strpos($color, '#') !== false){
return RSColorpicker::processRgba(RSColorpicker::sanitizeHex($color), $opacity);
}else{
$color = RSColorpicker::process($color, true);
return $color[0];
}
}
$opacity = floatval($opacity);
if($opacity < 1) $opacity = $opacity * 100;
$opacity = round($opacity);
$opacity = ($opacity > 100) ? 100 : $opacity;
$opacity = ($opacity < -1) ? 0 : $opacity;
if($opacity === 0) return 'transparent';
if(strpos($color, '#') !== false){
return RSColorpicker::processRgba(RSColorpicker::sanitizeHex($color), $opacity);
}else{
$color = RSColorpicker::rgbValues($color, 3);
return RSColorpicker::rgbaString($color[0], $color[1], $color[2], $opacity);
}
}
/**
* process color
* @since 5.3.1.6
*/
public static function process($clr, $processColor = false){
if(!is_string($clr)){
if($processColor) $clr = RSColorpicker::sanatizeGradient($clr);
return array(RSColorpicker::processGradient($clr), 'gradient', $clr);
}elseif(trim($clr) == 'transparent'){
return array('transparent', 'transparent');
}elseif(strpos($clr, '[{') !== false){
try{
$clr = json_decode(str_replace("amp;", '',str_replace("&", '"', $clr)), true);
if($processColor) $clr = RSColorpicker::sanatizeGradient($clr);
return array(RSColorpicker::processGradient($clr), 'gradient', $clr);
}catch(Exception $e){
return array(
'linear-gradient(0deg, rgb(255, 255, 255) 0%, rgb(0, 0, 0) 100%)',
'gradient',
array(
'type' => 'linear',
'angle' => '0',
'colors' => array(
array(
'r' => '255',
'g' => '255',
'b' => '255',
'a' => '1',
'position' => '0',
'align' => 'bottom'
),
array(
'r' => '0',
'g' => '0',
'b' => '0',
'a' => '1',
'position' => '100',
'align' => 'bottom'
)
)
)
);
}
}elseif(strpos($clr, '-gradient') !== false){
// gradient was not stored as a JSON string for some reason and needs to be converted
$reversed = RSColorpicker::reverseGradient($clr);
return array(RSColorpicker::processGradient($reversed), 'gradient_css', $reversed);
}elseif(strpos($clr,'#') !== false){
return array(RSColorpicker::sanitizeHex($clr), 'hex');
}elseif(strpos($clr,'rgba') !== false){
$clr = preg_replace('/\s+/', '', $clr);
// fixes 'rgba(0,0,0,)' issue
preg_match('/,\)/', $clr, $matches);
if(!empty($matches)) {
$clr = explode(',)', $clr);
$clr = $clr[0] . ',1)';
}
return array($clr, 'rgba');
}else{
$clr = preg_replace('/\s+/', '', $clr);
return array($clr, 'rgb');
}
}
/**
* sanitize a gradient
* @since 5.3.1.6
*/
public static function sanatizeGradient($obj){
$colors = $obj['colors'];
$len = count($colors);
$ar = array();
for($i = 0; $i < $len; $i++){
$cur = $colors[$i];
unset($cur['align']);
if(is_bool($cur['a'])) $cur['a'] = $cur['a'] ? 1 : 0;
$cur['a'] = RSColorpicker::sanitizeAlpha($cur['a']);
$cur['r'] = intval($cur['r']);
$cur['g'] = intval($cur['g']);
$cur['b'] = intval($cur['b']);
$cur['position'] = intval($cur['position']);
if(isset($prev)){
if(json_encode($cur) !== json_encode($prev)){
$ar[] = $cur;
}
}else{
$ar[] = $cur;
}
$prev = $cur;
}
$obj['colors'] = $ar;
return $obj;
}
/**
* cleans up the alpha value for comparison operations
* @since 6.0
*/
public static function sanitizeAlpha($alpha){
$alpha = floatval($alpha);
$alpha = min($alpha, 1);
$alpha = max($alpha, 0);
$alpha = number_format($alpha, 2, '.', '');
$alpha = preg_replace('/\.?0*$/', '', $alpha);
return floatval($alpha);
}
/**
* accounting for cases where gradient doesn't exist as a JSON Object from previous templates for some reason
* @since 6.0
*/
public static function reverseGradient($str){
// hsl colors not supported yet
if(strpos($str, 'hsl') !== false) return $str;
$str = str_replace('/\-moz\-|\-webkit\-/', '', $str);
$str = str_replace('to left', '90deg', $str);
$str = str_replace('to bottom', '180deg', $str);
$str = str_replace('to top', '0deg', $str);
$str = str_replace('to right', '270deg', $str);
$str = str_replace(';', '', $str);
$gradient = explode('-gradient(', $str);
if(count($gradient) < 2) return $str;
$grad = trim($gradient[1]);
$degree = '0';
if(strpos($grad, 'ellipse at center') === false){
if(strpos($grad, 'deg') !== false){
$grad = explode('deg', $grad);
$degree = trim($grad[0]);
$grad = trim($grad[1]);
}
}else{
$grad = str_replace('ellipse at center', '', $grad);
}
if($grad[0] === ',') $grad = ltrim($grad, ',');
if($grad[strlen($grad) - 1] === ',') $grad = rtrim($grad, ',');
$colors = explode('%', $grad);
$list = array();
array_pop($colors);
$prev = false;
foreach($colors as $clr) {
$clr = trim($clr);
$perc = '';
if($clr[0] === ',') $clr = ltrim($clr, ',');
if(strpos($clr, ' ') === false) return $str;
$perc = explode(' ', $clr);
$perc = $perc[count($perc) - 1];
$leg = strlen($clr);
$index = 0;
while($leg--){
$index = $leg;
if($clr[$leg] === ' ') break;
}
$clr = substr($clr, 0, $index);
preg_match('/\)/', $clr, $matches);
if(!empty($matches)) {
$clr = explode(')', $clr);
$clr = trim($clr[0]) . ')';
}else{
$clr = explode(' ', $clr);
$clr = trim($clr[0]);
}
$tpe = RSColorpicker::process($clr, false);
if($tpe[1] === 'hex'){
$clr = RSColorpicker::sanitizeHex($clr);
$clr = RSColorpicker::processRgba($clr);
}
if($prev && $prev === $clr) continue;
$prev = $clr;
$clr = RSColorpicker::rgbValues($clr, 4);
$list[] = array('r' => $clr[0], 'g' => $clr[1], 'b' => $clr[2], 'a' => $clr[3], 'position' => $perc, 'align' => 'top');
}
return array('type' => trim($gradient[0]), 'angle' => $degree, 'colors' => $list);
}
/**
* create the gradient
* @since 6.0
*/
public static function easeGradient(&$gradient){
include_once(RS_PLUGIN_PATH . 'includes/coloreasing.class.php');
if(class_exists('RSColorEasing')){
$strength = (intval($gradient['strength']) * 0.01) * 15;
$easing = $gradient['easing'];
$points = $gradient['colors'];
$len = count($points) - 1;
$ar = array();
for($i = 0; $i < $len; $i++){
$ar[] = $points[$i];
RSColorEasing::insertPoints($points[$i], $points[$i + 1], $ar, $easing, $strength);
}
$ar[] = $points[$len];
$gradient['colors'] = $ar;
}
}
/**
* create the gradient
* @since 5.3.1.6
*/
public static function processGradient($obj){
if(!is_array($obj)) return 'transparent';
if(array_key_exists('easing', $obj) && $obj['easing'] !== 'none') {
RSColorpicker::easeGradient($obj);
}
$tpe = $obj['type'];
$begin = $tpe . '-gradient(';
if($tpe === 'linear') {
$angle = intval($obj['angle']);
$middle = $angle !== 180 ? $angle . 'deg, ' : '';
}
else {
$middle = 'ellipse at center, ';
}
$colors = $obj['colors'];
$end = '';
$i = 0;
foreach($colors as $clr){
if($i > 0) $end .= ', ';
$end .= 'rgba(' . $clr['r'] . ',' . $clr['g'] . ',' . $clr['b'] . ',' . $clr['a'] . ') ' . $clr['position'] . '%';
$i++;
}
return $begin . $middle . $end . ')';
}
/**
* get rgb values
* @since 5.3.1.6
*/
public static function rgbValues($values, $num){
$values = substr( $values, strpos($values, '(') + 1 , strpos($values, ')')-strpos($values, '(') - 1 );
$values = explode(",", $values);
if(count($values) == 3 && $num == 4) $values[3] = '1';
for($i = 0; $i < $num; $i++){
if(isset($values[$i])) $values[$i] = trim($values[$i]);
}
if(count($values) < $num){
$v = count($values)-1;
for($i = $v; $i < $num; $i++){
$values[$i] = $values[0];
}
}
return $values;
}
/**
* get an rgba string
* @since 5.3.1.6
*/
public static function rgbaString($r, $g, $b, $a){
if($a > 1){
$a = ''.number_format($a * 0.01, 2, '.', '');
$a = str_replace('.00', '', $a);
}
return 'rgba(' . $r . ',' . $g . ',' . $b . ',' . $a . ')';
}
/**
* change rgb to hex
* @since 5.3.1.6
*/
public static function rgbToHex($clr){
$values = RSColorpicker::rgbValues($clr, 3);
return RSColorpicker::getRgbToHex($values[0], $values[1], $values[2]);
}
/**
* change rgba to hex
* @since 5.3.1.6
*/
public static function rgbaToHex($clr){
$values = RSColorpicker::rgbValues($clr, 4);
return RSColorpicker::getRgbToHex($values[0], $values[1], $values[2]);
}
/**
* get opacity
* @since 5.3.1.6
*/
public static function getOpacity($val){
$rgb = RSColorpicker::rgbValues($val, 4);
return intval($rgb[3] * 100, 10) + '%';
}
/**
* change rgb to hex
* @since 5.3.1.6
*/
public static function getRgbToHex($r, $g, $b){
$rgb = array($r, $g, $b);
$hex = "#";
$hex .= str_pad(dechex($rgb[0]), 2, "0", STR_PAD_LEFT);
$hex .= str_pad(dechex($rgb[1]), 2, "0", STR_PAD_LEFT);
$hex .= str_pad(dechex($rgb[2]), 2, "0", STR_PAD_LEFT);
return $hex;
}
/**
* join it together to be rgba
* @since 5.3.1.6
*/
public static function joinToRgba($val){
$val = explode('||', $val);
return RSColorpicker::convert($val[0], $val[1]);
}
/**
* rgb to rgba
* @since 6.0
*/
public static function rgbToRgba($val){
$val = RSColorpicker::rgbValues($val, 4);
return RSColorpicker::rgbaString($val[0], $val[1], $val[2], $val[3]);
}
/**
* convert rgba with 100% opacity to hex
* @since 6.0
*/
public static function trimHex($color) {
$color = trim($color);
if(strlen($color) !== 7) return $color;
$clr = str_replace('#', '', $color);
$char = $clr[0];
for($i = 1; $i < 6; $i++) {
if($clr[$i] !== $char) return $color;
$char = $clr[$i];
}
return '#' . substr($clr, 0, 3);
}
/**
* the legacy opacity to rgba conversions and also checks for gradients
* @since: 6.0
*/
public function correctValue($color, $opacity = false) {
if(!is_string($color)) return $color; // unknown value
// gradients can exist as a JSON string or a CSS string
// when they exist as a CSS string it is a result of a bug from 5.0
if(strpos($color, '[{') === false && strpos($color, 'gradient') === false) {
if($opacity === false) return $color; // normal color
return RSColorpicker::convert($color, $opacity); // legacy conversion
}
return $color; // gradient
}
/**
* useful when you need to compare two values and also for smallest print size
* for example, this function will convert both"
* "rgba(255,255, 255,1)" and "#FFFFFF" to "#FFF"
* @since: 6.0
*/
public static function normalizeColor($color) {
$color = RSColorpicker::process($color, true);
$clr = $color[0];
$tpe = $color[1];
$processed = true;
if($tpe === 'hex') {
$clr = RSColorpicker::processRgba($clr, true);
$processed = true;
}
else if($tpe === 'rgb') {
$clr = RSColorpicker::rgbToRgba($clr);
}
else if($tpe === 'rgba') {
$clr = preg_replace('/\s+/', '', $clr);
}
else {
$processed = false;
}
if($processed) $clr = RSColorpicker::sanitizeRgba($clr);
return $clr;
}
/**
* normalize colors for comparison
* @since: 6.0
*/
public static function normalizeColors($color) {
if(is_object($color)) $color = (array)$color;
if(is_array($color)) {
$total = count($color);
for($i = 0; $i < $total; $i++) $color[$i] = RSColorpicker::normalizeColor($color[$i]);
}
else {
$color = RSColorpicker::normalizeColor($color);
}
return $color;
}
/**
* convert rgba with 100% opacity to hex
* @since 6.0
*/
public static function sanitizeRgba($color, $opacity = false) {
if($opacity) {
$color = RSColorpicker::rgbaToHex($color);
$color = RSColorpicker::trimHex($color);
}
else {
$opacity = RSColorpicker::rgbValues($color, 4);
if($opacity[3] === '1') {
$color = RSColorpicker::rgbaToHex($color);
$color = RSColorpicker::trimHex($color);
}
}
return $color;
}
/**
* process rgba
* @since 5.3.1.6
*/
public static function processRgba($hex, $opacity = false){
$hex = trim(str_replace('#', '' , $hex));
$rgb = $opacity!==false ? 'rgba' : 'rgb';
$r = hexdec(substr($hex,0,2));
$g = hexdec(substr($hex,2,2));
$b = hexdec(substr($hex,4,2));
$color = $rgb . "(" . $r . "," . $g . "," . $b ;
if($opacity!==false){
if($opacity > 1)
$opacity = ''.number_format($opacity * 0.01 , 2, '.', '');
$opacity = str_replace('.00', '', $opacity);
$color .= ',' . $opacity;
}
$color .= ')';
return $color;
}
/**
* sanitize hex
* @since 5.3.1.6
*/
public static function sanitizeHex($hex){
$hex = trim(str_replace('#', '' , $hex));
if (strlen($hex) == 3) {
$hex[5] = $hex[2]; // f60##0
$hex[4] = $hex[2]; // f60#00
$hex[3] = $hex[1]; // f60600
$hex[2] = $hex[1]; // f66600
$hex[1] = $hex[0]; // ff6600
}
return '#'.$hex;
}
/**
* Save presets
* @since 5.3.2
*/
public static function save_color_presets($presets){
update_option('tp_colorpicker_presets', $presets);
return self::get_color_presets();
}
/**
* Load presets
* @since 5.3.2
*/
public static function get_color_presets(){
return get_option('tp_colorpicker_presets', array());
}
}
}
?>