/**
*
* @param type $sExcludeParams
* @param type $sField
* @return type
*/
public function prepareFieldOptions($sType, $sExcludeParams, $sGroup = '')
{
if ($sType == 'lazyload') {
$sGroup = 'file';
$aFieldOptions = $this->getLazyLoad();
} elseif ($sType == 'images') {
$sGroup = $sType;
$aM = explode('_', $sExcludeParams);
$aFieldOptions = $this->getImages($aM[1]);
} else {
$aFieldOptions = $this->getOptions($sType, $sGroup . 's');
}
$aOptions = array();
$oParams = $this->params;
$aExcludes = JchOptimizeHelper::getArray($oParams->get($sExcludeParams, array()));
foreach ($aExcludes as $sExclude) {
$aOptions[$sExclude] = $this->{'prepare' . ucfirst($sGroup) . 'Values'}($sExclude);
}
return array_unique(array_merge($aFieldOptions, $aOptions));
return $aFieldOptions;
}
/**
*
* @return string
*/
public function getLazyLoadRegex($admin = FALSE)
{
$sRegex = '#(?><?[^<]*+(?:<script\\b[^>]*+>(?><?[^<]*+)*?</script>)?)*?' . '\\K(?:(<img(?!(?>\\s*+[^\\s>]*+)*?\\s*+(?>data-(?:src|original)';
$aExcludeClass = JchOptimizeHelper::getArray($this->params->get('pro_excludeLazyLoadClass', array()));
if (!empty($aExcludeClass)) {
$aExcludeClass = array_map(function ($sValue) {
return '\\b' . preg_quote($sValue) . '\\b';
}, $aExcludeClass);
$sExcludeClass = implode('|', $aExcludeClass);
$sRegex .= '|class\\s*+=\\s*+[\'"]?[^\'">]*?(?>' . $sExcludeClass . ')';
}
$sRegex .= '))';
if ($admin) {
$sRegex .= '(?:(?=(?>\\s*+[^\\s>]*+)*?\\s*+class\\s*+=\\s*+[\'"]?([^\'">]*+)))?';
}
$sRegex .= '(?>\\s*+[^\\s>]*+)*?\\s*+)(src\\s*+=\\s*+(?![\'"]?[^\'"> ]*?(?:data:image';
$aExcludesFiles = JchOptimizeHelper::getArray($this->params->get('pro_excludeLazyLoad', array()));
$aExcludesFolders = JchOptimizeHelper::getArray($this->params->get('pro_excludeLazyLoadFolders', array()));
$aExcludes = array_merge($aExcludesFiles, $aExcludesFolders);
if (!empty($aExcludes)) {
$aExcludes = array_map(function ($sValue) {
return preg_quote($sValue);
}, $aExcludes);
$sExcludes = implode('|', $aExcludes);
$sRegex .= '|' . $sExcludes;
}
$sRegex .= '))[\'"]?((?(?<=[\'"])[^\'"]*+|[^\\s>]*+))[\'"]?)([^>]*+>)|\\K$)#i';
return $sRegex;
}
/**
* Generates regex for excluding components set in plugin params
*
* @param string $param
* @return string
*/
protected function getExComp($sExComParam)
{
$aComponents = JchOptimizeHelper::getArray($sExComParam);
$aExComp = array();
if (!empty($aComponents))
{
$aExComp = array_map(function($sValue)
{
return $sValue . '/';
}, $aComponents);
}
return $aExComp;
}
/**
* Determines if js file should be loaded asynchronously. Would be aggregated otherwise.
*
* @param type $sPath File path
* @return boolean
*/
protected function loadAsync($sUrl = '')
{
return JchOptimizeHelper::findExcludes(JchOptimizeHelper::getArray($this->params->get('pro_loadFilesAsync', '')), $sUrl);
}
/**
*
* @return string
*/
public function getLazyLoadRegex()
{
$sRegex = '#(?><?[^<]*+(?:<script\\b[^>]*+>(?><?[^<]*+)*?</script>)?)*?(?:<img(?!(?>\\s*+[^\\s>]*+)*?\\s*+data-src)' . '(?>\\s*+[^\\s>]*+)*?\\s*+\\Ksrc\\s*+=\\s*+(?![\'"]?(?:data:image';
$aExcludes = JchOptimizeHelper::getArray($this->params->get('pro_excludeLazyLoad', array()));
if (!empty($aExcludes)) {
$aExcludes = array_map(function ($sValue) {
return preg_quote($sValue);
}, $aExcludes);
$sExcludes = implode('|', $aExcludes);
$sRegex .= '|' . $sExcludes;
}
$sRegex .= '))[\'"]?((?(?<=[\'"])[^\'"]*+|[^\\s>]*+))[\'"]?|\\K$)#i';
return $sRegex;
}
/**
* Uses regex to find css declarations containing background images to include in sprite
*
* @param string $sCss Aggregated css file
* @return array Array of css declarations and image urls to replace with sprite
*/
public function processCssUrls($sCss, $bBackend = FALSE)
{
JCH_DEBUG ? JchPlatformProfiler::start('ProcessCssUrls') : null;
$params = $this->params;
$aRegexStart = array();
$aRegexStart[0] = '
#(?:{
(?=\\s*+(?>[^}\\s:]++[\\s:]++)*?url\\(
(?=[^)]+\\.(?:png|gif|jpe?g))
([^)]+)\\))';
$aRegexStart[1] = '
(?=\\s*+(?>[^}\\s:]++[\\s:]++)*?no-repeat)';
$aRegexStart[2] = '
(?(?=\\s*(?>[^};]++[;\\s]++)*?background(?:-position)?\\s*+:\\s*+(?:[^;}\\s]++[^}\\S]++)*?
(?<p>(?:[tblrc](?:op|ottom|eft|ight|enter)|-?[0-9]+(?:%|[c-x]{2})?))(?:\\s+(?&p))?)
(?=\\s*(?>[^};]++[;\\s]++)*?background(?:-position)?\\s*+:\\s*+(?>[^;}\\s]++[\\s]++)*?
(?:left|top|0(?:%|[c-x]{2})?)\\s+(?:left|top|0(?:%|[c-x]{2})?)
)
)';
$sRegexMiddle = '
[^{}]++} )';
$sRegexEnd = '#isx';
$aIncludeImages = JchOptimizeHelper::getArray($params->get('csg_include_images'));
$aExcludeImages = JchOptimizeHelper::getArray($params->get('csg_exclude_images'));
$sIncImagesRegex = '';
if (!empty($aIncludeImages[0])) {
foreach ($aIncludeImages as &$sImage) {
$sImage = preg_quote($sImage, '#');
}
$sIncImagesRegex .= '
|(?:{
(?=\\s*+(?>[^}\\s:]++[\\s:]++)*?url';
$sIncImagesRegex .= ' (?=[^)]* [/(](?:' . implode('|', $aIncludeImages) . ')\\))';
$sIncImagesRegex .= '\\(([^)]+)\\)
)
[^{}]++ })';
}
$sExImagesRegex = '';
if (!empty($aExcludeImages[0])) {
$sExImagesRegex .= '(?=\\s*+(?>[^}\\s:]++[\\s:]++)*?url\\(
[^)]++ (?<!';
foreach ($aExcludeImages as &$sImage) {
$sImage = preg_quote($sImage, '#');
}
$sExImagesRegex .= implode('|', $aExcludeImages) . ')\\)
)';
}
$sRegexStart = implode('', $aRegexStart);
$sRegex = $sRegexStart . $sExImagesRegex . $sRegexMiddle . $sIncImagesRegex . $sRegexEnd;
if (preg_match_all($sRegex, $sCss, $aMatches) === FALSE) {
throw new Exception('Error occurred matching for images to sprite');
}
if (isset($aMatches[3])) {
$total = count($aMatches[1]);
for ($i = 0; $i < $total; $i++) {
$aMatches[1][$i] = trim($aMatches[1][$i]) ? $aMatches[1][$i] : $aMatches[3][$i];
}
}
if ($bBackend) {
$aImages = array();
$aImagesMatches = array();
$aImgRegex = array();
$aImgRegex[0] = $aRegexStart[0];
$aImgRegex[2] = $aRegexStart[1];
$aImgRegex[4] = $sRegexMiddle;
$aImgRegex[5] = $sRegexEnd;
$sImgRegex = implode('', $aImgRegex);
if (preg_match_all($sImgRegex, $sCss, $aImagesMatches) === FALSE) {
throw new Exception('Error occurred matching for images to include');
}
$aImagesMatches[0] = array_diff($aImagesMatches[0], $aMatches[0]);
$aImagesMatches[1] = array_diff($aImagesMatches[1], $aMatches[1]);
$oImageLibrary = $this->getImageLibrary();
if ($oImageLibrary === FALSE) {
return array();
}
$oCssSpriteGen = new CssSpriteGen($oImageLibrary, $this->params, $bBackend);
$aImages['include'] = $oCssSpriteGen->CreateSprite($aImagesMatches[1]);
$aImages['exclude'] = $oCssSpriteGen->CreateSprite($aMatches[1]);
return $aImages;
}
JCH_DEBUG ? JchPlatformProfiler::stop('ProcessCssUrls', TRUE) : null;
return $aMatches;
}
