/**
* 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';
}
if (!class_exists('SiteOrigin_Widgets_Less_Functions')) {
require plugin_dir_path(__FILE__) . 'inc/less-functions.php';
}
$style_name = $this->get_style_name($instance);
if (empty($style_name)) {
return '';
}
$less_file = siteorigin_widget_get_plugin_dir_path($this->id_base) . 'styles/' . $style_name . '.less';
$less_file = apply_filters('siteorigin_widgets_less_file_' . $this->id_base, $less_file, $instance, $this);
$less = substr($less_file, -5) == '.less' && file_exists($less_file) ? file_get_contents($less_file) : '';
// Substitute the variables
if (!class_exists('SiteOrigin_Widgets_Color_Object')) {
require plugin_dir_path(__FILE__) . 'inc/color.php';
}
// Lets widgets insert their own custom generated LESS
$less = preg_replace_callback('/\\.widget-function\\((.*)\\);/', array($this, 'less_widget_inject'), $less);
//handle less @import statements
$less = preg_replace_callback('/^@import\\s+".*?\\/?([\\w-\\.]+)";/m', array($this, 'get_less_import_contents'), $less);
$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);
}
}
$less = apply_filters('siteorigin_widgets_styles', $less, get_class($this), $instance);
$less = apply_filters('siteorigin_widgets_less_' . $this->id_base, $less, $instance, $this);
$style = $this->get_style_name($instance);
$hash = $this->get_style_hash($instance);
$css_name = $this->id_base . '-' . $style . '-' . $hash;
//we assume that any remaining @imports are plain css imports and should be kept outside selectors
$css_imports = '';
if (preg_match_all('/^@import.+/m', $less, $imports)) {
$css_imports = implode("\n", $imports[0]);
}
$less = $css_imports . "\n\n" . '.so-widget-' . $css_name . ' { ' . $less . ' } ';
$c = new lessc();
$lc_functions = new SiteOrigin_Widgets_Less_Functions($this, $instance);
$lc_functions->registerFunctions($c);
return apply_filters('siteorigin_widgets_instance_css', $c->compile($less), $instance, $this);
}
/**
* 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';
}
if (!class_exists('SiteOrigin_Widgets_Less_Functions')) {
require plugin_dir_path(__FILE__) . 'inc/less-functions.php';
}
if (!method_exists($this, 'get_less_content')) {
$style_name = $this->get_style_name($instance);
if (empty($style_name)) {
return '';
}
$less_file = siteorigin_widget_get_plugin_dir_path($this->id_base) . 'styles/' . $style_name . '.less';
$less_file = apply_filters('siteorigin_widgets_less_file_' . $this->id_base, $less_file, $instance, $this);
$less = substr($less_file, -5) == '.less' && file_exists($less_file) ? file_get_contents($less_file) : '';
} else {
// The widget is going handle getting the instance LESS
$less = $this->get_less_content($instance);
}
// Substitute the variables
if (!class_exists('SiteOrigin_Widgets_Color_Object')) {
require plugin_dir_path(__FILE__) . 'inc/color.php';
}
// Lets widgets insert their own custom generated LESS
$less = preg_replace_callback('/\\.widget-function\\((.*)\\);/', array($this, 'less_widget_inject'), $less);
//handle less @import statements
$less = preg_replace_callback('/^@import\\s+".*?\\/?([\\w-\\.]+)";/m', array($this, 'get_less_import_contents'), $less);
$vars = $this->get_less_variables($instance);
if (!empty($vars)) {
foreach ($vars as $name => $value) {
// Ignore empty string, false and null values (but keep '0')
if ($value === '' || $value === false || $value === null) {
continue;
}
$less = preg_replace('/\\@' . preg_quote($name) . ' *\\:.*?;/', '@' . $name . ': ' . $value . ';', $less);
}
}
$less = apply_filters('siteorigin_widgets_styles', $less, $this->widget_class, $instance);
$less = apply_filters('siteorigin_widgets_less_' . $this->id_base, $less, $instance, $this);
$style = $this->get_style_name($instance);
$hash = $this->get_style_hash($instance);
$css_name = $this->id_base . '-' . $style . '-' . $hash;
//we assume that any remaining @imports are plain css imports and should be kept outside selectors
$css_imports = '';
if (preg_match_all('/^@import.+/m', $less, $imports)) {
$css_imports = implode("\n", $imports[0]);
$less = preg_replace('/^@import.+/m', '', $less);
}
$less = $css_imports . "\n\n" . '.so-widget-' . $css_name . " { \n" . $less . "\n } ";
$compiler = new lessc();
$lc_functions = new SiteOrigin_Widgets_Less_Functions($this, $instance);
$lc_functions->registerFunctions($compiler);
try {
if (method_exists($compiler, 'compile')) {
$css = $compiler->compile($less);
}
} catch (Exception $e) {
$css = '';
}
// Remove any attributes with default as the value
$css = preg_replace('/[a-zA-Z\\-]+ *: *default *;/', '', $css);
// Remove any empty CSS
$css = preg_replace('/[^{}]*\\{\\s*\\}/m', '', $css);
$css = trim($css);
return apply_filters('siteorigin_widgets_instance_css', $css, $instance, $this);
}
