/**
* Replaces LESS imports with the content from the actual files. This used as a preg callback.
*
* @param $matches
*
* @return string
*/
private function get_less_import_contents($matches)
{
$filename = $matches[1];
// First, we'll deal with a few special cases
switch ($filename) {
case 'mixins':
return file_get_contents(plugin_dir_path(__FILE__) . 'less/mixins.less');
break;
case 'lesshat':
return file_get_contents(plugin_dir_path(__FILE__) . 'less/lesshat.less');
break;
}
//get file extension
preg_match('/\\.\\w+$/', $filename, $ext);
//if there is a file extension and it's not .less or .css we ignore
if (!empty($ext)) {
if (!($ext[0] == '.less' || $ext[0] == '.css')) {
return '';
}
} else {
$filename .= '.less';
}
//first check local widget styles directory and then bundle less directory
$search_path = array(siteorigin_widget_get_plugin_dir_path($this->id_base) . 'styles/', plugin_dir_path(__FILE__) . 'less/');
foreach ($search_path as $dir) {
if (file_exists($dir . $filename)) {
return file_get_contents($dir . $filename) . "\n\n";
}
}
//file not found
return '';
}
/**
* Generate the CSS for the widget.
*
* @param $instance
* @return string
*/
public function get_instance_css($instance)
{
if (!class_exists('lessc')) {
require plugin_dir_path(__FILE__) . 'inc/lessc.inc.php';
}
$style_name = $this->get_style_name($instance);
if (empty($style_name)) {
return '';
}
$less = file_get_contents(siteorigin_widget_get_plugin_dir_path($this->id_base) . 'styles/' . $style_name . '.less');
// Substitute the variables
if (!class_exists('SiteOrigin_Widgets_Color_Object')) {
require plugin_dir_path(__FILE__) . 'inc/color.php';
}
$vars = $this->get_less_variables($instance);
if (!empty($vars)) {
foreach ($vars as $name => $value) {
if (empty($value)) {
continue;
}
$less = preg_replace('/\\@' . preg_quote($name) . ' *\\:.*?;/', '@' . $name . ': ' . $value . ';', $less);
}
}
$mixins = file_get_contents(plugin_dir_path(__FILE__) . 'less/mixins.less');
$less = preg_replace('/@import \\".*mixins\\";/', $mixins . "\n\n", $less);
$style = $this->get_style_name($instance);
$hash = $this->get_style_hash($instance);
$css_name = $this->id_base . '-' . $style . '-' . $hash;
$less = '.so-widget-' . $css_name . ' { ' . $less . ' } ';
$c = new lessc();
return $c->compile($less);
}
