/**
* Minifies collected scripts
*/
private function flush_collected()
{
if (count($this->files_to_minify) <= 0) {
return;
}
// find embed position
$embed_pos = $this->embed_pos;
if ($this->minify_group_number <= 0 && $this->group_type == 'head') {
// try forced embed position
$forced_embed_pos = strpos($this->buffer, '<!-- W3TC-include-js-head -->');
if ($forced_embed_pos !== false) {
$this->buffer = str_replace('<!-- W3TC-include-js-head -->', '', $this->buffer);
$embed_pos = $forced_embed_pos;
}
}
// build minified script tag
$urls = $this->minify_helpers->get_minify_urls_for_files($this->files_to_minify, 'js');
$script = '';
if (is_array($urls)) {
foreach ($urls as $url) {
$script .= $this->minify_helpers->generate_script_tag($url, $this->embed_type);
}
}
// replace
$this->buffer = substr_replace($this->buffer, $script, $embed_pos, 0);
$this->files_to_minify = array();
$this->minify_group_number++;
}
