function load_styles()
{
$grid = Upfront_Grid::get_grid();
$layout = apply_filters('upfront-style-base_layout', Upfront_Layout::get_instance());
$preprocessor = new Upfront_StylePreprocessor($grid, $layout);
$base_only = isset($_POST['base_only']) ? filter_var($_POST['base_only'], FILTER_VALIDATE_BOOLEAN) : false;
// Alright, so initialize the var first
$style = '';
// Add typography styles - rearranging so the imports from Google fonts come first, if needed.
// When loading styles in editor mode don't include typography styles since they are generated
// by javascript
if (false === $base_only) {
$style = $this->prepare_typography_styles($layout, $grid);
$style .= $preprocessor->process();
}
// Always load original theme styles into theme unless we're in builder, yay
// Reasoning behind it: we want theme users to always have original theme styles loaded
// because if they want to override some style they can add their own additional properties
// or nullify explicitly existing rules. So, to avoid complex initialization logic depending
// on wheather there is something in database just load theme styles always. In builder though
// we don't want this because user is editing actual theme styles.
$style .= $this->load_theme_styles_unless_in_builder();
// When loading styles in editor mode don't include element styles and colors since they
// will be loaded separately to the body. If they are included in main style than after
// style is edited in editor (e.g. some property is removed) inconsistencies may occur
// especially with rules removal since those would still be defined in main style.
if ($base_only) {
$this->_out(new Upfront_JsonResponse_Success(array('styles' => $style)));
return;
}
//Add theme styles
$style .= $this->prepare_theme_styles();
// Add theme colors styles
$style .= $this->_get_theme_colors_styles();
// Add elements presets styles
$style = apply_filters('get_element_preset_styles', $style);
$style = Upfront_UFC::init()->process_colors($style);
$this->_out(new Upfront_CssResponse_Success($style));
}
