function parse_css_media($css, &$pipeline, $baseindex = 0)
{
// Remove comments
$css = preg_replace("#/\\*.*?\\*/#is", "", $css);
// Extract @page rules
$css = parse_css_atpage_rules($css, $pipeline);
// Extract @import rules
if ($num = preg_match_all("/@import[^;]+;/", $css, $matches, PREG_PATTERN_ORDER)) {
for ($i = 0; $i < $num; $i++) {
$this->parse_css_import($matches[0][$i], $pipeline);
}
}
// Remove @import rules so they will not break further processing
$css = preg_replace("/@import[^;]+;/", "", $css);
while (preg_match("/([^{}]*){(.*?)}(.*)/is", $css, $matches)) {
// Drop extracted part
$css = $matches[3];
// Save extracted part
$raw_selectors = $matches[1];
$raw_properties = $matches[2];
$selectors = parse_css_selectors($raw_selectors);
$properties = parse_css_properties($raw_properties, $pipeline);
foreach ($selectors as $selector) {
$this->_lastId++;
$rule = array($selector, $properties, $pipeline->get_base_url(), $this->_lastId + $baseindex);
$this->add_rule($rule, $pipeline);
}
}
}
function parse_css_selectors($css, $media_queries = true)
{
$result = $media_blocks = [];
//---------------parse css media queries------------------
if ($media_queries == true) {
$media_blocks = parse_css_media_queries($css);
}
$b = 0;
if (!empty($media_blocks)) {
//---------------get css blocks-----------------
$css_blocks = $css;
foreach ($media_blocks as $media_block) {
$css_blocks = str_ireplace($media_block, '~£&#' . $media_block . '~£&#', $css_blocks);
}
$css_blocks = explode('~£&#', $css_blocks);
//---------------parse css blocks-----------------
foreach ($css_blocks as $css_block) {
preg_match('/(\\@media[^\\{]+)\\{(.*)\\}\\s+/ims', $css_block, $block);
if (isset($block[2]) && !empty($block[2])) {
$result[$block[1]] = parse_css_selectors($block[2], false);
} else {
$result[$b] = parse_css_selectors($css_block, false);
}
++$b;
}
} else {
//---------------escape base64 images------------------
$css = preg_replace('/(data\\:[^;]+);/i', '$1~£&#', $css);
//---------------parse css selectors------------------
preg_match_all('/([^\\{\\}]+)\\{([^\\}]*)\\}/ims', $css, $arr);
foreach ($arr[0] as $i => $x) {
$selector = trim($arr[1][$i]);
$rules = explode(';', trim($arr[2][$i]));
$rules_arr = [];
foreach ($rules as $strRule) {
if (!empty($strRule)) {
$rule = explode(":", $strRule, 2);
if (isset($rule[1])) {
$rules_arr[trim($rule[0])] = str_replace('~£&#', ';', trim($rule[1]));
} else {
//debug
}
}
}
$selectors = explode(',', trim($selector));
foreach ($selectors as $strSel) {
if ($media_queries === true) {
$result[$b][$strSel] = $rules_arr;
} else {
$result[$strSel] = $rules_arr;
}
}
}
}
return $result;
}
function parse_dom_contents($doc_contents = '', $doc_type = 'html')
{
$dom_contents = [];
if ($doc_type == 'html') {
//-----------------parse html contents---------------
$dom_contents['html:head'] = '';
$dom_contents['html:links'] = '';
$dom_contents['html:scripts'] = '';
$dom_contents['html:styles'] = '';
$dom_contents['html:body'] = '';
//-----------------parse doc_contents---------------
$dom = new DOMDocument();
$dom->loadHTML($doc_contents);
//----------parse head---------
$head = $dom->getElementsByTagName('head');
if ($head && 0 < $head->length) {
$dom_contents['html:head'] = strip_single_tag($dom->savehtml($head->item(0)), 'head');
}
//----------parse link---------
$links = $dom->getElementsByTagName('link');
if ($links && 0 < $links->length) {
foreach ($links as $i => $link) {
if ($link->hasAttributes() && ($url = $link->getAttribute('href'))) {
foreach ($link->attributes as $attr) {
$name = $attr->nodeName;
$value = $attr->nodeValue;
$dom_contents['html:links'][$url][$name] = $value;
}
$dom_contents['html:links'][$url]['string'] = custom_trim($dom->savehtml($links->item($i)));
}
}
}
//----------parse script---------
$scripts = $dom->getElementsByTagName('script');
if ($scripts && 0 < $scripts->length) {
foreach ($scripts as $i => $script) {
if ($script->hasAttributes() && ($url = $script->getAttribute('src'))) {
foreach ($script->attributes as $attr) {
$name = $attr->nodeName;
$value = $attr->nodeValue;
$dom_contents['html:scripts'][$url][$name] = $value;
}
$dom_contents['html:scripts'][$url]['string'] = custom_trim($dom->savehtml($scripts->item($i)));
}
}
}
//----------parse style---------
$styles = $dom->getElementsByTagName('style');
if ($styles && 0 < $styles->length) {
foreach ($styles as $i => $style) {
if ($style->hasAttributes()) {
foreach ($style->attributes as $attr) {
$name = $attr->nodeName;
$value = $attr->nodeValue;
$dom_contents['html:styles'][$i][$name] = $value;
}
}
$dom_contents['html:styles'][$i]['string'] = strip_single_tag(custom_trim($dom->savehtml($styles->item($i))), 'style');
}
}
//----------parse body---------
$body = $dom->getElementsByTagName('body');
if ($body && 0 < $body->length) {
$dom_contents['html:body'] = strip_single_tag($dom->savehtml($body->item(0)), 'body');
}
} elseif ($doc_type == 'css') {
$dom_contents['css'] = parse_css_selectors($doc_contents);
}
return $dom_contents;
}
function parse_css_media($css, &$pipeline, $baseindex = 0)
{
// Remove comments
$css = preg_replace("#/\\*.*?\\*/#is", "", $css);
// Extract @import rules
if ($num = preg_match_all("/@import[^;]+;/", $css, $matches, PREG_PATTERN_ORDER)) {
for ($i = 0; $i < $num; $i++) {
parse_css_import($matches[0][$i], $pipeline);
}
}
while (preg_match("/([^{}]*){(.*?)}(.*)/is", $css, $matches)) {
// Drop extracted part
$css = $matches[3];
// Save extracted part
$raw_selectors = $matches[1];
$raw_properties = $matches[2];
$selectors = parse_css_selectors($raw_selectors);
$properties = parse_css_properties($raw_properties, $pipeline);
foreach ($selectors as $selector) {
// FIXME: this stuff definitely should be incapsulated
global $g_css;
global $g_css_index;
$g_css_index++;
array_push($g_css, array($selector, $properties, $pipeline->get_base_url(), $g_css_index + $baseindex));
}
}
}
