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| <?php | |
| /** | |
| * Pop PHP Framework (http://www.popphp.org/) | |
| * | |
| * @link https://github.com/popphp/popphp-framework | |
| * @author Nick Sagona, III <dev@nolainteractive.com> | |
| * @copyright Copyright (c) 2009-2020 NOLA Interactive, LLC. (http://www.nolainteractive.com) | |
| * @license http://www.popphp.org/license New BSD License | |
| */ | |
| /** | |
| * @namespace | |
| */ | |
| namespace Pop\Css; | |
| /** | |
| * Pop CSS class | |
| * | |
| * @category Pop | |
| * @package Pop\Css | |
| * @author Nick Sagona, III <dev@nolainteractive.com> | |
| * @copyright Copyright (c) 2009-2020 NOLA Interactive, LLC. (http://www.nolainteractive.com) | |
| * @license http://www.popphp.org/license New BSD License | |
| * @version 1.0.8 | |
| */ | |
| class Css extends AbstractCss | |
| { | |
| /** | |
| * Media queries | |
| * @var array | |
| */ | |
| protected $media = []; | |
| /** | |
| * Add media query | |
| * | |
| * @param Media $media | |
| * @return self | |
| */ | |
| public function addMedia(Media $media) | |
| { | |
| $this->media[] = $media; | |
| return $this; | |
| } | |
| /** | |
| * Get media query by index | |
| * | |
| * @param int $i | |
| * @return Media | |
| */ | |
| public function getMedia($i) | |
| { | |
| return (isset($this->media[$i])) ? $this->media[$i] : null; | |
| } | |
| /** | |
| * Get all media queries | |
| * | |
| * @return array | |
| */ | |
| public function getAllMedia() | |
| { | |
| return $this->media; | |
| } | |
| /** | |
| * Remove media query by index | |
| * | |
| * @param int $i | |
| * @return self | |
| */ | |
| public function removeMedia($i) | |
| { | |
| if (isset($this->media[(int)$i])) { | |
| unset($this->media[(int)$i]); | |
| } | |
| return $this; | |
| } | |
| /** | |
| * Remove all media queries | |
| * | |
| * @return self | |
| */ | |
| public function removeAllMedia() | |
| { | |
| $this->media = []; | |
| return $this; | |
| } | |
| /** | |
| * Parse CSS string | |
| * | |
| * @param string $cssString | |
| * @return self | |
| */ | |
| public static function parseString($cssString) | |
| { | |
| $css = new self(); | |
| $css->parseCss($cssString); | |
| return $css; | |
| } | |
| /** | |
| * Parse CSS from file | |
| * | |
| * @param string $cssFile | |
| * @return self | |
| */ | |
| public static function parseFile($cssFile) | |
| { | |
| $css = new self(); | |
| $css->parseCssFile($cssFile); | |
| return $css; | |
| } | |
| /** | |
| * Parse CSS from URI | |
| * | |
| * @param string $cssUri | |
| * @return self | |
| */ | |
| public static function parseUri($cssUri) | |
| { | |
| $css = new self(); | |
| $css->parseCssUri($cssUri); | |
| return $css; | |
| } | |
| /** | |
| * Parse CSS string | |
| * | |
| * @param string $cssString | |
| * @return self | |
| */ | |
| public function parseCss($cssString) | |
| { | |
| // Parse media queries | |
| $origCssString = $cssString; | |
| $mediaComments = []; | |
| $matches = []; | |
| preg_match_all('~@media\b[^{]*({((?:[^{}]+|(?1))*)})~', $cssString, $matches, PREG_OFFSET_CAPTURE); | |
| if (isset($matches[0]) && isset($matches[0][0])) { | |
| foreach ($matches[0] as $match) { | |
| // See if media query has a top-level comment | |
| $mediaComment = null; | |
| $char = null; | |
| $pos = $match[1]; | |
| while (($char != '/') && ($char != '}') && ($pos != 0)) { | |
| $pos--; | |
| $char = $origCssString[$pos]; | |
| } | |
| if ($char == '/') { | |
| $mediaComment = substr($origCssString, 0, ($pos + 1)); | |
| $mediaComment = substr($mediaComment, strrpos($mediaComment, '/*')); | |
| $mediaComment = explode(PHP_EOL, $mediaComment); | |
| foreach ($mediaComment as $key => $line) { | |
| $mediaComment[$key] = trim(str_replace(['/*', '*/', '*'], ['', '', ''], $line)); | |
| } | |
| } | |
| $cssString = str_replace($match[0], '', $cssString); | |
| $mediaType = null; | |
| $mediaCondition = null; | |
| $mediaFeatures = []; | |
| $mediaQuery = substr($match[0], 6); | |
| $mediaQuery = trim(substr($mediaQuery, 0, strpos($mediaQuery, ' {'))); | |
| $mediaQueryCss = substr($match[0], (strpos($match[0], '{') + 1)); | |
| $mediaQueryCss = trim(substr($mediaQueryCss, 0, strrpos($match[0], '}'))); | |
| if (strpos($mediaQuery, 'all') !== false) { | |
| $mediaType = 'all'; | |
| } else if (strpos($mediaQuery, 'print') !== false) { | |
| $mediaType = 'print'; | |
| } else if (strpos($mediaQuery, 'screen') !== false) { | |
| $mediaType = 'screen'; | |
| } else if (strpos($mediaQuery, 'speech') !== false) { | |
| $mediaType = 'speech'; | |
| } | |
| if (strpos($mediaQuery, 'not') !== false) { | |
| $mediaCondition = 'not'; | |
| } | |
| if (strpos($mediaQuery, 'only') !== false) { | |
| $mediaCondition = 'only'; | |
| } | |
| if ((strpos($mediaQuery, '(') !== false) && (strpos($mediaQuery, ')') !== false)) { | |
| $features = substr($mediaQuery, strpos($mediaQuery, '(')); | |
| $features = substr($features, 0, (strrpos($features, ')') + 1)); | |
| $features = explode('and', $features); | |
| foreach ($features as $feature) { | |
| $feature = str_replace(['(', ')'], ['', ''], $feature); | |
| $feature = explode(':', $feature); | |
| if (count($feature) == 2) { | |
| $mediaFeatures[trim($feature[0])] = trim($feature[1]); | |
| } | |
| } | |
| } | |
| $media = new Media($mediaType, $mediaFeatures, $mediaCondition); | |
| if (null !== $mediaComment) { | |
| $media->addComment(new Comment(trim(implode(PHP_EOL, $mediaComment)))); | |
| } | |
| $commentsMatches = []; | |
| preg_match_all('!/\*.*?\*/!s', $mediaQueryCss, $commentsMatches, PREG_OFFSET_CAPTURE); | |
| if (isset($commentsMatches[0]) && isset($commentsMatches[0][0])) { | |
| foreach ($commentsMatches[0] as $match) { | |
| $selectorName = substr($mediaQueryCss, $match[1]); | |
| $selectorName = substr($selectorName, 0, strpos($selectorName, '{')); | |
| $selectorName = trim(substr($selectorName, (strpos($selectorName, '*/') + 2))); | |
| $comment = explode(PHP_EOL, $match[0]); | |
| foreach ($comment as $key => $line) { | |
| $comment[$key] = trim(str_replace(['/*', '*/', '*'], ['', '', ''], $line)); | |
| } | |
| $mediaComments[$selectorName] = new Comment(trim(implode(PHP_EOL, $comment))); | |
| } | |
| } | |
| $mediaQueryCss = preg_replace('!/\*.*?\*/!s', '', $mediaQueryCss); | |
| $mediaQueryCss = preg_replace('/\n\s*\n/', "\n", $mediaQueryCss); | |
| $selectors = $this->parseSelectors($mediaQueryCss); | |
| foreach ($selectors as $selector) { | |
| $media->addSelector($selector); | |
| } | |
| if (count($mediaComments) > 0) { | |
| foreach ($mediaComments as $selectorName => $comment) { | |
| if ($media->hasSelector($selectorName)) { | |
| $media->getSelector($selectorName)->addComment($comment); | |
| } | |
| } | |
| } | |
| $this->addMedia($media); | |
| } | |
| } | |
| // Parse comments | |
| $comments = []; | |
| $matches = []; | |
| preg_match_all('!/\*.*?\*/!s', $cssString, $matches, PREG_OFFSET_CAPTURE); | |
| if (isset($matches[0]) && isset($matches[0][0])) { | |
| foreach ($matches[0] as $match) { | |
| $selectorName = null; | |
| if ($match[1] != 0) { | |
| $selectorName = substr($cssString, $match[1]); | |
| $selectorName = substr($selectorName, 0, strpos($selectorName, '{')); | |
| $selectorName = trim(substr($selectorName, (strpos($selectorName, '*/') + 2))); | |
| } | |
| $comment = explode(PHP_EOL, $match[0]); | |
| foreach ($comment as $key => $line) { | |
| $comment[$key] = trim(str_replace(['/*', '*/', '*'], ['', '', ''], $line)); | |
| } | |
| if (null === $selectorName) { | |
| $this->addComment(new Comment(trim(implode(PHP_EOL, $comment)))); | |
| } else { | |
| $comments[$selectorName] = new Comment(trim(implode(PHP_EOL, $comment))); | |
| } | |
| } | |
| } | |
| $cssString = preg_replace('!/\*.*?\*/!s', '', $cssString); | |
| $cssString = preg_replace('/\n\s*\n/', "\n", $cssString); | |
| // Parse everything else | |
| $selectors = $this->parseSelectors($cssString); | |
| foreach ($selectors as $selector) { | |
| $this->addSelector($selector); | |
| } | |
| if (count($comments) > 0) { | |
| foreach ($comments as $selectorName => $comment) { | |
| if ($this->hasSelector($selectorName)) { | |
| $this->getSelector($selectorName)->addComment($comment); | |
| } | |
| } | |
| } | |
| return $this; | |
| } | |
| /** | |
| * Parse CSS string from file | |
| * | |
| * @param string $cssFile | |
| * @throws Exception | |
| * @return self | |
| */ | |
| public function parseCssFile($cssFile) | |
| { | |
| if (!file_exists($cssFile)) { | |
| throw new Exception("Error: That file '" . $cssFile . "' does not exist."); | |
| } | |
| return $this->parseCss(file_get_contents($cssFile)); | |
| } | |
| /** | |
| * Parse CSS string from URI | |
| * | |
| * @param string $cssUri | |
| * @return self | |
| */ | |
| public function parseCssUri($cssUri) | |
| { | |
| return $this->parseCss(file_get_contents($cssUri)); | |
| } | |
| /** | |
| * Method to render the selector CSS | |
| * | |
| * @return string | |
| */ | |
| public function render() | |
| { | |
| $css = ''; | |
| if (!$this->minify) { | |
| foreach ($this->comments as $comment) { | |
| $css .= (string)$comment . PHP_EOL; | |
| } | |
| } | |
| foreach ($this->elements as $element) { | |
| if (isset($this->selectors[$element])) { | |
| $selector = $this->selectors[$element]; | |
| $selector->minify($this->minify); | |
| $css .= (string)$selector; | |
| if (!$this->minify) { | |
| $css .= PHP_EOL; | |
| } | |
| } | |
| } | |
| foreach ($this->ids as $id) { | |
| if (isset($this->selectors[$id])) { | |
| $selector = $this->selectors[$id]; | |
| $selector->minify($this->minify); | |
| $css .= (string)$selector; | |
| if (!$this->minify) { | |
| $css .= PHP_EOL; | |
| } | |
| } | |
| } | |
| foreach ($this->classes as $class) { | |
| if (isset($this->selectors[$class])) { | |
| $selector = $this->selectors[$class]; | |
| $selector->minify($this->minify); | |
| $css .= (string)$selector; | |
| if (!$this->minify) { | |
| $css .= PHP_EOL; | |
| } | |
| } | |
| } | |
| foreach ($this->media as $media) { | |
| $media->minify($this->minify); | |
| $css .= (string)$media; | |
| if (!$this->minify) { | |
| $css .= PHP_EOL; | |
| } | |
| } | |
| return $css; | |
| } | |
| /** | |
| * To string method | |
| * | |
| * @return string | |
| */ | |
| public function __toString() | |
| { | |
| return $this->render(); | |
| } | |
| /** | |
| * Method to parse the CSS selectors from a string | |
| * | |
| * @param string $cssString | |
| * @return array | |
| */ | |
| protected function parseSelectors($cssString) | |
| { | |
| $selectors = []; | |
| $matches = []; | |
| preg_match_all('/\{\s*([^}]*?)\s*}/m', $cssString, $matches, PREG_OFFSET_CAPTURE); | |
| if (isset($matches[0]) && isset($matches[0][0])) { | |
| $curPos = 0; | |
| foreach ($matches[0] as $match) { | |
| $selectorName = trim(substr($cssString, $curPos, $match[1])); | |
| if (strpos($selectorName, '{') !== false) { | |
| $selectorName = trim(substr($selectorName, 0, strpos($selectorName, '{'))); | |
| } | |
| $rules = explode(';', trim(str_replace(['{', '}'], ['', ''], trim($match[0])))); | |
| $cssRules = []; | |
| foreach ($rules as $key => $value) { | |
| if (!empty($value)) { | |
| $value = trim($value); | |
| $v = explode(':', $value); | |
| if (count($v) == 2) { | |
| $cssRules[trim($v[0])] = trim($v[1]); | |
| } | |
| } | |
| } | |
| $selector = new Selector($selectorName); | |
| $selector->setProperties($cssRules); | |
| $selectors[] = $selector; | |
| $curPos = $match[1] + strlen($match[0]); | |
| } | |
| } | |
| return $selectors; | |
| } | |
| } |