/**
* Parse all the less files resolving the dependencies.
*
* @param array $variables
* @param bool $compile_core If set to true, it forces compilation of core CSS only, suitable for shipping.
* @throws Ai1ec_File_Not_Found_Exception|Exception
* @throws Exception
* @return string
*/
public function parse_less_files(array $variables = null, $compile_core = false)
{
// If no variables are passed, initialize from DB, config file, and
// extension injections in one call.
if (empty($variables)) {
$variables = $this->get_saved_variables(false);
}
// convert the variables to key / value
$variables = $this->convert_less_variables_for_parsing($variables);
// Inject additional constants from extensions
$variables = apply_filters('ai1ec_less_constants', $variables);
// Use this variables for hashmap purposes.
$this->variables = $variables;
// Load the static variables defined in the theme's variables.less file.
$this->load_static_theme_variables();
$loader = $this->_registry->get('theme.loader');
//Allow extensions to add their own LESS files.
$this->files = apply_filters('ai1ec_less_files', $this->files);
$this->files[] = 'override.less';
// Find out the active theme URL.
$option = $this->_registry->get('model.option');
$theme = $option->get('ai1ec_current_theme');
$this->lessc->addImportDir($theme['theme_dir'] . DIRECTORY_SEPARATOR . 'less');
$import_dirs = array();
foreach ($this->files as $file) {
$file_to_parse = null;
try {
// Get the filename following our fallback convention
$file_to_parse = $loader->get_file($file);
} catch (Ai1ec_Exception $e) {
// We let child themes override styles of Vortex.
// So there is no fallback for override and we can continue.
if ($file !== 'override.less') {
throw $e;
} else {
// It's an override, skip it.
continue;
}
}
// We prepend the unparsed variables.less file we got earlier.
// We do this as we do not import that anymore in the less files.
$this->unparsed_variable_file .= $file_to_parse->get_content();
// Set the import directories for the file. Includes current directory of
// file as well as theme directory in core. This is important for
// dependencies to be resolved correctly.
$dir = dirname($file_to_parse->get_name());
if (!isset($import_dirs[$dir])) {
$import_dirs[$dir] = true;
$this->lessc->addImportDir($dir);
}
}
$variables['fontdir'] = '~"' . Ai1ec_Http_Response_Helper::remove_protocols($theme['theme_url']) . '/font"';
$variables['fontdir_default'] = '~"' . Ai1ec_Http_Response_Helper::remove_protocols($this->default_theme_url) . 'font"';
$variables['imgdir'] = '~"' . Ai1ec_Http_Response_Helper::remove_protocols($theme['theme_url']) . '/img"';
$variables['imgdir_default'] = '~"' . Ai1ec_Http_Response_Helper::remove_protocols($this->default_theme_url) . 'img"';
if (true === $compile_core) {
$variables['fontdir'] = '~"../font"';
$variables['fontdir_default'] = '~"../font"';
$variables['imgdir'] = '~"../img"';
$variables['imgdir_default'] = '~"../img"';
}
try {
$this->parsed_css = $this->lessc->parse($this->unparsed_variable_file, $variables);
} catch (Exception $e) {
throw $e;
}
// Replace font placeholders
$this->parsed_css = preg_replace_callback('/__BASE64_FONT_([a-zA-Z0-9]+)_(\\S+)__/m', array($this, 'load_font_base64'), $this->parsed_css);
return $this->parsed_css;
}
/**
* Get the url to retrieve the css
*
* @return string
*/
public function get_css_url()
{
// get what's saved. I t could be false, a int or a string.
// if it's false or a int, use PHP to render CSS
$saved_par = $this->db_adapter->get(self::QUERY_STRING_PARAM);
// if it's empty it's a new install probably. Return static css.
// if it's numeric, just consider it a new install
if (empty($saved_par)) {
$theme = $this->_registry->get('model.option')->get('ai1ec_current_theme');
return Ai1ec_Http_Response_Helper::remove_protocols(apply_filters('ai1ec_frontend_standard_css_url', $theme['theme_url'] . '/css/ai1ec_parsed_css.css'));
}
if (is_numeric($saved_par)) {
if ($this->_registry->get('model.settings')->get('render_css_as_link')) {
$time = (int) $saved_par;
$template_helper = $this->_registry->get('template.link.helper');
return Ai1ec_Http_Response_Helper::remove_protocols(add_query_arg(array(self::QUERY_STRING_PARAM => $time), trailingslashit(ai1ec_get_site_url())));
} else {
add_action('wp_head', array($this, 'echo_css'));
return '';
}
}
// otherwise return the string
return Ai1ec_Http_Response_Helper::remove_protocols($saved_par);
}
