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Current File : /WEBS/sic/wp-content/themes/bb-theme/classes/class-fl-customizer.php
<?php
use function FortAwesome\fa;
/**
 * Helper class for Customizer logic.
 *
 * @since 1.2.0
 */
final class FLCustomizer {

	/**
	 * An array of data used to render Customizer panels.
	 *
	 * @since 1.2.0
	 * @access private
	 * @var array $_panels
	 */
	static private $_panels = array();

	/**
	 * An array of data for each settings preset.
	 *
	 * @since 1.2.0
	 * @access private
	 * @var array $_presets
	 */
	static private $_presets = array();

	/**
	 * Cache for the get_theme_mods call.
	 *
	 * @since 1.2.0
	 * @access private
	 * @var array $_mods
	 */
	static private $_mods = false;

	/**
	 * A flag for whether or not we're in a Customizer
	 * preview or not.
	 *
	 * @since 1.2.0
	 * @access private
	 * @var bool $_in_customizer_preview
	 */
	static private $_in_customizer_preview = false;

	/**
	 * The prefix for the option that is stored in the
	 * database for the cached CSS file key.
	 *
	 * @since 1.2.0
	 * @access private
	 * @var string $_css_key
	 */
	static private $_css_key = 'fl_theme_css_key';

	/**
	 * Adds Customizer panel data to the $_panels array.
	 *
	 * @since 1.2.0
	 * @param string $key The key for the panel to add. Must be unique.
	 * @param array $data The panel data.
	 * @return void
	 */
	static public function add_panel( $key, $data ) {
		self::$_panels[ $key ] = apply_filters( 'fl_theme_add_panel_data', $data, $key );
	}

	/**
	 * Adds settings preset data to the $_presets array.
	 *
	 * @since 1.2.0
	 * @param string $key The key for the preset to add. Must be unique.
	 * @param array $data An array of settings for the preset.
	 * @return void
	 */
	static public function add_preset( $key, $data ) {
		self::$_presets[ $key ] = $data;
	}

	/**
	 * Removes a preset from the presets array.
	 *
	 * @since 1.3.0
	 * @param string $key The key of the preset to remove.
	 * @return void
	 */
	static public function remove_preset( $key ) {
		if ( empty( $key ) ) {
			return;
		}

		if ( is_array( $key ) ) {
			$keys = $key;
		} elseif ( is_string( $key ) ) {
			$keys = array_map( 'trim', explode( ',', $key ) );
		}

		foreach ( (array) $keys as $k ) {
			if ( isset( self::$_presets[ $k ] ) ) {
				unset( self::$_presets[ $k ] );
			}
		}
	}

	/**
	 * Called by the customize_preview_init action to initialize
	 * a Customizer preview.
	 *
	 * @since 1.2.0
	 * @return void
	 */
	static public function preview_init() {
		self::$_in_customizer_preview = true;

		self::refresh_css();

		wp_enqueue_script( 'fl-stylesheet', FL_THEME_URL . '/js/stylesheet.js', array(), '', true );
		wp_enqueue_script( 'fl-customizer-preview', FL_THEME_URL . '/js/customizer-preview.js', array(), '', true );
	}

	/**
	 * Called by the customize_controls_enqueue_scripts action to enqueue
	 * styles and scripts for the Customizer.
	 *
	 * @since 1.2.0
	 * @return void
	 */
	static public function controls_enqueue_scripts() {
		wp_enqueue_style( 'fl-customizer', FL_THEME_URL . '/css/customizer.css', array(), FL_THEME_VERSION );
		wp_enqueue_script( 'fl-customizer-toggles', FL_THEME_URL . '/js/customizer-toggles.js', array(), FL_THEME_VERSION, true );
		wp_enqueue_script( 'fl-customizer', FL_THEME_URL . '/js/customizer.js', array(), FL_THEME_VERSION, true );
		wp_enqueue_script( 'ace', FL_THEME_URL . '/js/ace/ace.js', array(), FL_THEME_VERSION, true );
		wp_enqueue_script( 'ace-language-tools', FL_THEME_URL . '/js/ace/ext-language_tools.js', array(), FL_THEME_VERSION, true );
		if ( true === apply_filters( 'fl_select2_enabled', true ) ) {
			wp_enqueue_style( 'select2', FL_THEME_URL . '/css/select2.min.css', array(), FL_THEME_VERSION );
			wp_enqueue_script( 'select2', FL_THEME_URL . '/js/select2.min.js', array( 'jquery' ), FL_THEME_VERSION, true );
		}
	}

	/**
	 * Called by the customize_controls_print_footer_scripts action to
	 * print scripts in the footer for the Customizer.
	 *
	 * @since 1.2.0
	 * @return void
	 */
	static public function controls_print_footer_scripts() {
		// Opening script tag
		echo '<script>';

		// Fonts
		FLFonts::js();

		// Defaults
		echo 'var FLCustomizerPresetDefaults = ' . json_encode( self::_get_default_preset_mods() ) . ';';

		// Presets
		echo 'var FLCustomizerPresets = ' . json_encode( self::$_presets ) . ';';

		// Closing script tag
		echo '</script>';
	}

	/**
	 * Called by the customize_controls_print_styles action to
	 * print custom styles for the Customizer preview.
	 *
	 * @since 1.7
	 * @return void
	 */
	static public function controls_print_styles() {
		$tablet_margin_left = '-384px'; //Half of -$tablet_width
		$tablet_width       = '768px';

		echo '<style>';
		echo '.wp-customizer .preview-tablet .wp-full-overlay-main {';
			echo 'margin-left: ' . $tablet_margin_left . ';';
			echo 'width: ' . $tablet_width . ';';
		echo '}';
		echo '</style>';
	}

	/**
	 * Called by the customize_register action to register presets,
	 * panels, sections, settings and controls.
	 *
	 * @since 1.2.0
	 * @return void
	 */
	static public function register( $customizer ) {
		require_once FL_THEME_DIR . '/classes/class-fl-customizer-control.php';

		self::_register_presets( $customizer );
		self::_register_panels( $customizer );
		self::_register_export_import_section( $customizer );
		self::_move_builtin_sections( $customizer );
		self::_remove_sections( $customizer );
	}

	/**
	 * Called by the customize_save_after action to refresh
	 * the cached CSS when Customizer settings are saved.
	 *
	 * @since 1.2.0
	 * @return void
	 */
	static public function save( $customizer ) {
		self::refresh_css();
	}

	/**
	 * @since 1.7.4
	 */
	static public function clearmodcache() {
		self::$_mods = false;
	}

	/**
	 * Returns an array of all theme mods.
	 *
	 * @since 1.2.0
	 * @return array
	 */
	static public function get_mods() {
		// We don't have mods yet, get them from the database.
		if ( ! self::$_mods ) {

			// Get preset preview mods.
			if ( self::is_preset_preview() ) {
				$mods = self::_get_preset_preview_mods();
			} else {

				// Get the settings.
				$mods = get_theme_mods();

				// Merge default mods.
				$mods = self::_merge_mods( 'default', $mods );
			}

			// No mods! Get defaults.
			if ( ! $mods ) {
				$mods = self::_get_default_mods();
				update_option( 'theme_mods_' . get_option( 'stylesheet' ), $mods );
			}
			self::$_mods = $mods;
		}

		$mods = self::$_mods;

		// Hack to insure the mod values are the same as the customzier
		// values since get_theme_mods doesn't return the correct values
		// while in the customizer. See https://core.trac.wordpress.org/ticket/24844
		if ( self::is_customizer_preview() ) {
			foreach ( $mods as $key => $val ) {
				$mods[ $key ] = apply_filters( 'theme_mod_' . $key, $mods[ $key ] );
			}
		}

		return apply_filters( 'fl_theme_mods', $mods );
	}

	/**
	 * Returns a URL for the cached CSS file.
	 *
	 * @since 1.2.0
	 * @return string
	 */
	static public function css_url() {
		// Get the cache dir and css key.
		$cache_dir = self::get_cache_dir();
		$css_slug  = self::_css_slug();
		$css_key   = get_option( self::$_css_key . '-' . $css_slug );
		$css_path  = $cache_dir['path'] . $css_slug . '-' . $css_key . '.css';
		$css_url   = $cache_dir['url'] . $css_slug . '-' . $css_key . '.css';

		// No css key, recompile the css.
		if ( ! $css_key ) {
			$compiled = self::_compile_css();
			if ( false !== $compiled && ! is_wp_error( $compiled ) ) {
				return self::css_url();
			}
		}

		// Check to see if the file exists.
		if ( ! fl_theme_filesystem()->file_exists( $css_path ) ) {
			$compiled = self::_compile_css();
			if ( false !== $compiled && ! is_wp_error( $compiled ) ) {
				return self::css_url();
			}
		}

		// Return the url.
		return $css_url;
	}

	/**
	 * Clears and rebuilds the cached CSS file.
	 *
	 * @since 1.2.0
	 * @return void
	 */
	static public function refresh_css() {
		self::clearmodcache();
		self::_clear_css_cache();
		return self::_compile_css();
	}

	/**
	 * Checks to see if this is a preset preview or not.
	 *
	 * @since 1.2.0
	 * @return bool
	 */
	static public function is_preset_preview() {
		if ( ! isset( $_GET['fl-preview'] ) ) {
			return false;
		}
		if ( ! isset( self::$_presets[ $_GET['fl-preview'] ] ) ) {
			return false;
		} elseif ( current_user_can( 'manage_options' ) || self::_is_demo_server() ) {
			return true;
		}

		return false;
	}

	/**
	 * Checks to see if this is a Customizer preview or not.
	 *
	 * @since 1.2.0
	 * @return bool
	 */
	static public function is_customizer_preview() {
		return self::$_in_customizer_preview;
	}

	/**
	 * Sanitize callback for Customizer number settings.
	 *
	 * @since 1.2.0
	 * @return int
	 */
	static public function sanitize_number( $val ) {
		return is_numeric( $val ) ? $val : 0;
	}

	/**
	 * Sanitize callback for Customizer multiple checkbox settings.
	 *
	 * @since 1.5.3
	 * @return array
	 */
	static public function sanitize_checkbox_multiple( $val ) {
		$multi_values = ! is_array( $val ) ? explode( ',', $val ) : $val;

		return ! empty( $multi_values ) ? array_map( 'sanitize_text_field', $multi_values ) : array();
	}

	/**
	 * Returns an array with the path and url for the cache directory.
	 *
	 * @since 1.2.0
	 * @return array
	 */
	static public function get_cache_dir() {
		$dir_name = basename( FL_THEME_DIR );
		$wp_info  = wp_upload_dir();

		// SSL workaround.
		if ( FLTheme::is_ssl() ) {
			$wp_info['baseurl'] = str_ireplace( 'http://', 'https://', $wp_info['baseurl'] );
		}

		// Build the paths.
		$dir_info = array(
			'path' => $wp_info['basedir'] . '/' . $dir_name . '/',
			'url'  => $wp_info['baseurl'] . '/' . $dir_name . '/',
		);

		// Create the cache dir if it doesn't exist.
		if ( ! fl_theme_filesystem()->file_exists( $dir_info['path'] ) ) {
			fl_theme_filesystem()->mkdir( $dir_info['path'] );
		}

		return apply_filters( 'fl_theme_get_cache_dir', $dir_info );
	}

	/**
	 * Deletes all cached CSS files.
	 *
	 * @since 1.5.2
	 * @return void
	 */
	static public function clear_all_css_cache() {
		self::_clear_css_cache( true );
	}

	/**
	 * Registers the presets section, control and setting.
	 *
	 * @since 1.2.0
	 * @access private
	 * @param object $customizer An instance of WP_Customize_Manager.
	 * @return void
	 */
	static private function _register_presets( $customizer ) {
		// Presets section
		$customizer->add_section( 'fl-presets', array(
			'title'    => _x( 'Presets', 'Customizer section title. Theme design/style presets.', 'fl-automator' ),
			'priority' => 0,
		) );

		// Presets setting
		$customizer->add_setting( 'fl-preset', array(
			'default' => 'default',
		));

		// Presets choices
		$choices = array();

		foreach ( self::$_presets as $key => $val ) {
			$choices[ $key ] = $val['name'];
		}

		// Presets control
		$customizer->add_control( new WP_Customize_Control( $customizer, 'fl-preset', array(
			'section'     => 'fl-presets',
			'settings'    => 'fl-preset',
			'description' => __( 'Start by selecting a preset for your theme.', 'fl-automator' ),
			'type'        => 'select',
			'choices'     => $choices,
		)));
	}

	/**
	 * Registers the panels using data in the $_panels array.
	 *
	 * @since 1.2.0
	 * @access private
	 * @param object $customizer An instance of WP_Customize_Manager.
	 * @return void
	 */
	static private function _register_panels( $customizer ) {
		$panel_priority   = 1;
		$section_priority = 1;
		$option_priority  = 1;

		// Loop panels
		foreach ( self::$_panels as $panel_key => $panel_data ) {

			// Add panel
			if ( self::_has_panel_support() ) {
				$customizer->add_panel( $panel_key, array(
					'title'    => $panel_data['title'],
					'priority' => $panel_priority,
				));
			}

			// Increment panel priority
			$panel_priority++;

			// Loop panel sections
			if ( isset( $panel_data['sections'] ) ) {

				if ( ! class_exists( 'woocommerce' ) ) {
					unset( $panel_data['sections']['fl-content-woo'] );
				}

				foreach ( $panel_data['sections'] as $section_key => $section_data ) {

					// Make sure this section should be registered.
					if ( isset( $section_data['disable'] ) && true === $section_data['disable'] ) {
						continue;
					}

					// Add section
					$customizer->add_section( $section_key, array(
						'panel'    => $panel_key,
						'title'    => $section_data['title'],
						'priority' => $section_priority,
					));

					// Increment section priority
					$section_priority++;

					// Loop section options
					if ( isset( $section_data['options'] ) ) {

						foreach ( $section_data['options'] as $option_key => $option_data ) {

							// Add setting
							if ( ! isset( $option_data['setting'] ) ) {
								$option_data['setting'] = array(
									'default' => '',
								);
							}

							$customizer->add_setting( $option_key, $option_data['setting'] );

							// Add control
							$option_data['control']['section']  = $section_key;
							$option_data['control']['settings'] = $option_key;
							$option_data['control']['priority'] = $option_priority;

							// Add responsive controls.
							if ( isset( $option_data['control']['responsive'] ) && $option_data['control']['responsive'] ) {
								$option_data['control']['classes'] = array( 'fl-responsive-customize-control' );
								self::_add_responsive_control( $customizer, $option_key, $option_data );
							}

							if ( isset( $option_data['control']['responsive'] ) ) {
								$option_data['control']['classes'][] = 'desktop';
							}

							$customizer->add_control(
								new $option_data['control']['class']( $customizer, $option_key, $option_data['control'] )
							);

							// Increment option priority
							$option_priority++;
						}

						// Reset option priority
						$option_priority = 0;
					}
				}

				// Reset section priority on if we have panel support.
				if ( self::_has_panel_support() ) {
					$section_priority = 0;
				}
			}
		}
	}

	/**
	 * Registers the responsive controls if enabled.
	 *
	 * @since 1.7
	 * @access private
	 * @param object $customizer An instance of WP_Customize_Manager.
	 * @param string $key The control key.
	 * @param array  $data The control data.
	 * @return void
	 */
	static private function _add_responsive_control( $customizer, $key, $data ) {
		if ( empty( $data['control']['responsive'] ) ) {
			return;
		}

		$label      = $data['control']['label'];
		$priority   = $data['control']['priority'];
		$responsive = $data['control']['responsive'];

		// We don't need responsive setting for each device.
		unset( $data['control']['responsive'] );

		foreach ( array( 'medium', 'mobile' ) as $device ) {
			$option_key = $key . '_' . $device;
			$setting    = $data['setting'];
			$control    = $data['control'];

			// Setting default value
			if ( is_array( $responsive ) && isset( $responsive['default'] ) && isset( $responsive['default'][ $device ] ) ) {
				$setting['default'] = $responsive['default'][ $device ];
			}

			// Add setting
			$customizer->add_setting( $option_key, $setting );

			// Add control
			$control['label']     = $label;
			$control['settings']  = $option_key;
			$control['priority']  = $priority + .1;
			$control['classes'][] = $device;

			$customizer->add_control(
				new $control['class']( $customizer, $option_key, $control )
			);
		}
	}

	/**
	 * Registers the export/import section, control and setting.
	 *
	 * @since 1.2.0
	 * @access private
	 * @param object $customizer An instance of WP_Customize_Manager.
	 * @return void
	 */
	static private function _register_export_import_section( $customizer ) {
		if ( ! class_exists( 'CEI_Core' ) && current_user_can( 'install_plugins' ) ) {

			$customizer->add_section( 'fl-export-import', array(
				'title'    => _x( 'Export/Import', 'Customizer section title.', 'fl-automator' ),
				'priority' => 10000000,
			) );

			$customizer->add_setting( 'fl-export-import', array(
				'default' => '',
				'type'    => 'none',
			));

			$customizer->add_control( new FLCustomizerControl(
				$customizer,
				'fl-export-import',
				array(
					'section'  => 'fl-export-import',
					'type'     => 'export-import',
					'priority' => 1,
				)
			));
		}
	}

	/**
	 * Checks to see if Customizer panels are supported.
	 *
	 * @since 1.2.0
	 * @access private
	 * @return bool
	 */
	static private function _has_panel_support() {
		return method_exists( 'WP_Customize_Manager', 'add_panel' );
	}

	/**
	 * Moves the builtin sections to the Settings panel.
	 *
	 * @since 1.2.0
	 * @access private
	 * @param object $customizer An instance of WP_Customize_Manager.
	 * @return void
	 */
	static private function _move_builtin_sections( $customizer ) {
		$title_tagline     = $customizer->get_section( 'title_tagline' );
		$nav               = $customizer->get_section( 'nav' );
		$static_front_page = $customizer->get_section( 'static_front_page' );

		// Set new panels or set a low priority.
		if ( self::_has_panel_support() ) {
			if ( is_object( $title_tagline ) ) {
				$title_tagline->panel = 'fl-settings';
			}
			if ( is_object( $nav ) ) {
				$nav->panel = 'fl-settings';
			}
			if ( is_object( $static_front_page ) ) {
				$static_front_page->panel = 'fl-settings';
			}
		} else {
			if ( is_object( $title_tagline ) ) {
				$title_tagline->priority = 10000;
			}
			if ( is_object( $nav ) ) {
				$nav->priority = 10001;
			}
			if ( is_object( $static_front_page ) ) {
				$static_front_page->priority = 10002;
			}
		}
	}

	/**
	 * Remove customizer sections based on version dependencies
	 *
	 * @since 1.6
	 * @access private
	 * @param object $customizer An instance of WP_Customize_Manager.
	 * @return boolean
	 */
	static private function _remove_sections( $customizer ) {
		// Remove CSS Code if WP core 'Additional CSS' is available since 4.7.0
		if ( function_exists( 'wp_get_custom_css_post' ) ) {
			$customizer->remove_section( 'fl-css-code-section' );
		}
	}

	/**
	 * Get an array of defaults for all Customizer settings.
	 *
	 * @since 1.2.0
	 * @access private
	 * @return array
	 */
	static public function _get_default_mods() {
		$mods = array();

		// Loop through the panels.
		foreach ( self::$_panels as $panel ) {

			if ( ! isset( $panel['sections'] ) ) {
				continue;
			}

			// Loop through the panel sections.
			foreach ( $panel['sections'] as $section ) {

				if ( ! isset( $section['options'] ) ) {
					continue;
				}

				// Loop through the section options.
				foreach ( $section['options'] as $option_id => $option ) {
					$default_option = isset( $option['setting']['default'] ) ? $option['setting']['default'] : '';
					$control        = $option['control'];

					// Add default for desktop
					$mods[ $option_id ] = $default_option;

					// Add responsive option for each device if enabled
					$responsive = isset( $control['responsive'] ) && $control['responsive'] ? $control['responsive'] : false;

					if ( $responsive ) {
						foreach ( array( 'medium', 'mobile' ) as $device ) {
							$opt_name = $option_id . '_' . $device;

							if ( is_array( $responsive ) && isset( $responsive['default'] ) && isset( $responsive['default'][ $device ] ) ) {
								$mods[ $opt_name ] = $responsive['default'][ $device ];
							} else {
								$mods[ $opt_name ] = $default_option;
							}
						}
					}
				}
			}
		}

		return apply_filters( 'fl_default_theme_mods', $mods );
	}

	/**
	 * Get an array of defaults for settings that have a preset.
	 *
	 * @since 1.2.0
	 * @access private
	 * @return array
	 */
	static private function _get_default_preset_mods() {
		$keys     = array();
		$defaults = self::_get_default_mods();
		$mods     = array();

		foreach ( self::$_presets as $preset => $data ) {

			foreach ( $data['settings'] as $key => $val ) {

				if ( ! in_array( $key, $keys, true ) ) {
					$keys[] = $key;
				}
			}
		}

		foreach ( $keys as $key ) {
			if ( isset( $defaults[ $key ] ) ) {
				$mods[ $key ] = $defaults[ $key ];
			}
		}

		return $mods;
	}

	/**
	 * Get an array of mods for either a Customizer preview
	 * or a preset preview.
	 *
	 * @since 1.2.0
	 * @access private
	 * @return array|bool
	 */
	static private function _get_preset_preview_mods() {
		if ( self::is_preset_preview() ) {

			$preset_slug                     = $_GET['fl-preview'];
			$preset                          = self::$_presets[ $preset_slug ];
			$preset['settings']['fl-preset'] = $_GET['fl-preview'];

			if ( current_user_can( 'manage_options' ) ) {
				return self::_merge_mods( 'saved', $preset['settings'] );
			} elseif ( self::_is_demo_server() ) {
				return self::_merge_mods( 'default', $preset['settings'] );
			}

			return false;
		}
	}

	/**
	 * Checks if this is the Beaver Builder demo server or not.
	 *
	 * @since 1.2.0
	 * @access private
	 * @return bool
	 */
	static private function _is_demo_server() {
		return stristr( $_SERVER['HTTP_HOST'], 'demos.wpbeaverbuilder.com' );
	}

	/**
	 * Merges the provided mods array with the type of mods
	 * specified in the $merge_with param.
	 *
	 * @since 1.2.0
	 * @access private
	 * @param string $merge_with Possible values are default and saved.
	 * @param array $mods The mods array to merge with.
	 * @return array|bool
	 */
	static private function _merge_mods( $merge_with = 'default', $mods = null ) {
		if ( ! $mods ) {
			return false;
		} elseif ( 'default' === $merge_with ) {
			$new_mods = self::_get_default_mods();
		} elseif ( 'saved' === $merge_with ) {
			$new_mods = get_theme_mods();
			$new_mods = self::_merge_mods( 'default', $new_mods );
		}

		foreach ( $mods as $mod_id => $mod ) {
			$new_mods[ $mod_id ] = $mod;
		}

		return $new_mods;
	}

	/**
	 * Deletes cached CSS files based on the current
	 * context (live, preview or customizer) or all if
	 * $all is set to true.
	 *
	 * @since 1.2.0
	 * @access private
	 * @param bool $all
	 * @return void
	 */
	static private function _clear_css_cache( $all = false ) {

		if ( 'inline' === FLTheme::get_asset_enqueue_method() ) {
				update_option( 'fl-theme-skin', '' );
				update_option( 'fl-theme-customizer', '' );
				update_option( 'fl-theme-editor', '' );
				return false;
		}

		$dir_name  = basename( FL_THEME_DIR );
		$cache_dir = self::get_cache_dir();
		$css_slug  = $all ? '' : self::_css_slug() . '-';

		if ( ! empty( $cache_dir['path'] ) && stristr( $cache_dir['path'], $dir_name ) ) {

			$css = glob( $cache_dir['path'] . $css_slug . '*' );

			foreach ( $css as $file ) {
				if ( is_file( $file ) ) {
					fl_theme_filesystem()->unlink( $file );
				}
			}
		}
	}

	/**
	 * Returns the prefix slug for the CSS cache file.
	 *
	 * @since 1.2.0
	 * @access private
	 * @return string
	 */
	static private function _css_slug() {
		if ( self::is_preset_preview() ) {
			$slug = 'preview-' . $_GET['fl-preview'];
		} elseif ( self::is_customizer_preview() ) {
			$slug = 'customizer';
		} else {
			$slug = 'skin';
		}
		return $slug;
	}

	/**
	 * Compiles the cached CSS file.
	 *
	 * @since 1.2.0
	 * @access private
	 * @return void
	 */
	static private function _compile_css() {
		$theme_info  = wp_get_theme();
		$cache_dir   = self::get_cache_dir();
		$new_css_key = uniqid();
		$css_slug    = self::_css_slug();
		$filename    = $cache_dir['path'] . $css_slug . '-' . $new_css_key . '.css';
		$paths       = self::_get_less_paths();

		// Loop over paths and get contents
		$css = FLCSS::paths_get_contents( $paths );

		// Filter less before compiling
		$css = apply_filters( 'fl_theme_compile_less', $css );

		// Replace {FL_THEME_URL} placeholder.
		$css = FLCSS::replace_tokens( $css );

		// Compile LESS
		$css = self::_compile_less( $css );

		if ( is_wp_error( $css ) ) {
			error_log( 'Less compile aborted. No file written.' );
			return $css;
		}

		// Compress
		if ( ! WP_DEBUG ) {
			$css = FLCSS::compress_css( $css );
		}

		if ( 'inline' === FLTheme::get_asset_enqueue_method() ) {
			// write css to db
			FLTheme::update_cached_css( $css_slug, $css );
			return $css;
		} else {
			// Save the new css.
			$write = fl_theme_filesystem()->file_put_contents( $filename, $css );

			// Save the new css key.
			update_option( self::$_css_key . '-' . $css_slug, $new_css_key );
		}

		return $write;
	}

	/**
	 * Compiles the provided LESS CSS.
	 *
	 * @since 1.2.0
	 * @access private
	 * @param string $css The LESS CSS to compile.
	 * @return string
	 */
	static private function _compile_less( $css ) {

		// Fix issue with IE filters
		$css = FLCSS::normalize_ie_filters( $css );

		// Mixins
		$mixins = file_get_contents( FL_THEME_DIR . '/less/mixins.less' );

		// Vars
		$less_vars = self::_get_less_vars();

		// Compile and return
		return FLCSS::compile_less( $mixins . $less_vars . $css );
	}

	/**
	 * Returns an array of less paths for compiling the skin.
	 *
	 * @since 1.7
	 * @access private
	 * @return array
	 */
	static private function _get_less_paths() {
		$mods   = self::get_mods();
		$preset = isset( $mods['fl-preset'] ) ? $mods['fl-preset'] : 'default';
		$paths  = array();
		$files  = array(
			'theme'                    => true,
			'top-bar'                  => 'none' !== $mods['fl-topbar-layout'],
			'nav-toggle-button'        => 'button' === $mods['fl-mobile-nav-toggle'],
			'nav-toggle-icon'          => 'icon' === $mods['fl-mobile-nav-toggle'],
			'fadein-header'            => 'fadein' === $mods['fl-fixed-header'],
			'shrink-header'            => 'shrink' === $mods['fl-fixed-header'],
			'fixed-header'             => 'fixed' === $mods['fl-fixed-header'] || 'enable' === $mods['fl-hide-until-scroll-header'],
			'nav-bottom'               => 'bottom' === $mods['fl-header-layout'],
			'nav-right'                => 'right' === $mods['fl-header-layout'] || 'fadein' === $mods['fl-fixed-header'],
			'nav-left'                 => 'left' === $mods['fl-header-layout'],
			'nav-centered'             => 'centered' === $mods['fl-header-layout'],
			'nav-centered-inline-logo' => 'centered-inline-logo' === $mods['fl-header-layout'],
			'nav-vertical'             => strstr( $mods['fl-header-layout'], 'vertical' ),
			'nav-offcanvas'            => 'dropdown' !== $mods['fl-nav-mobile-layout'],
			'submenu-indicator'        => 'enable' === $mods['fl-nav-submenu-indicator'],
			'footer-widgets'           => 'disabled' !== $mods['fl-footer-widgets-display'],
			'footer'                   => 'none' !== $mods['fl-footer-layout'],
			'bigcommerce'              => function_exists( 'bigcommerce' ),
			'bigcommerce-buttons'      => function_exists( 'bigcommerce' ) && 'custom' === $mods['fl-button-style'],
			'woocommerce'              => 'disabled' !== $mods['fl-woo-css'] && class_exists( 'WooCommerce' ),
			'the-events-calendar'      => defined( 'TRIBE_EVENTS_FILE' ),
			'blocks'                   => true,
			'buttons'                  => 'custom' === $mods['fl-button-style'],
			'responsive-controls'      => true,
			'northcommerce'            => defined( 'NORTH_COMMERCE_VERSION' ),
		);

		// Loop files and add paths.
		foreach ( $files as $slug => $compile ) {
			if ( $compile ) {
				$paths[] = FL_THEME_DIR . "/less/$slug.less";
			}
		}

		// Add a skin file if we have one.
		if ( isset( self::$_presets[ $preset ]['skin'] ) ) {

			$skin = self::$_presets[ $preset ]['skin'];

			if ( stristr( $skin, '.css' ) || stristr( $skin, '.less' ) ) {
				$skin_file = $skin;
			} else {
				$skin_file = FL_THEME_DIR . '/less/skin-' . $skin . '.less';
			}

			if ( file_exists( $skin_file ) ) {
				$paths[] = $skin_file;
			}
		}

		// Filter and return the array of paths.
		return apply_filters( 'fl_theme_compile_less_paths', $paths );
	}

	/**
	 * Builds a string with LESS variables using Customizer settings.
	 *
	 * @since 1.2.0
	 * @access public
	 * @return string
	 */
	static public function _get_less_vars() {
		$mods        = self::get_mods();
		$defaults    = self::_get_default_mods();
		$vars        = array();
		$vars_string = '';
		$breakpoints = FLTheme::get_theme_breakpoints();

		// Layout
		$boxed                      = 'boxed' === $mods['fl-layout-width'];
		$shadow_size                = $mods['fl-layout-shadow-size'];
		$shadow_color               = $mods['fl-layout-shadow-color'];
		$vars['body-padding']       = $boxed ? $mods['fl-layout-spacing'] . 'px 0' : '0';
		$vars['page-shadow']        = $boxed ? '0 0 ' . $shadow_size . 'px ' . $shadow_color : 'none';
		$vars['mobile-breakpoint']  = $breakpoints['mobile_breakpoint'] . 'px';
		$vars['medium-breakpoint']  = $breakpoints['medium_breakpoint'] . 'px';
		$vars['padding-top-custom'] = $mods['fl-fixed-header-padding-top-custom'] . 'px';

		// Body Background Image
		$vars['body-bg-image']      = empty( $mods['fl-body-bg-image'] ) ? 'none' : 'url(' . $mods['fl-body-bg-image'] . ')';
		$vars['body-bg-repeat']     = $mods['fl-body-bg-repeat'];
		$vars['body-bg-position']   = $mods['fl-body-bg-position'];
		$vars['body-bg-attachment'] = $mods['fl-body-bg-attachment'];
		$vars['body-bg-size']       = $mods['fl-body-bg-size'];

		// Body Colors
		$vars['body-bg-color']       = FLColor::hex( array( $mods['fl-body-bg-color'], $defaults['fl-body-bg-color'] ) );
		$vars['body-bg-color-2']     = FLColor::similar( array( 1, 4, 13 ), $vars['body-bg-color'] );
		$vars['body-bg-color-3']     = FLColor::similar( array( 3, 9, 18 ), $vars['body-bg-color'] );
		$vars['body-border-color']   = FLColor::similar( array( 10, 9, 19 ), $vars['body-bg-color'] );
		$vars['body-border-color-2'] = FLColor::similar( array( 20, 20, 30 ), $vars['body-bg-color'] );
		$vars['body-fg-color']       = FLColor::foreground( $vars['body-bg-color'] );

		// Accent Color
		$vars['accent-color']          = FLColor::hex( array( $mods['fl-accent'], $defaults['fl-accent'] ) );
		$vars['accent-hover-color']    = FLColor::hex( array( $mods['fl-accent-hover'], $mods['fl-accent'] ) );
		$vars['accent-fg-color']       = FLColor::foreground( $vars['accent-color'] );
		$vars['accent-fg-hover-color'] = FLColor::foreground( $vars['accent-hover-color'] );

		// Text Colors
		$vars['heading-color'] = FLColor::hex( $mods['fl-heading-text-color'] );
		$vars['text-color']    = FLColor::hex( $mods['fl-body-text-color'] );

		// Fonts
		$vars['text-font']   = self::_get_font_family_string( $mods['fl-body-font-family'] );
		$vars['text-weight'] = self::_sanitize_weight( $mods['fl-body-font-weight'] );
		$vars['text-style']  = self::_get_style( $mods['fl-body-font-weight'] );

		$vars['heading-font']      = self::_get_font_family_string( $mods['fl-heading-font-family'] );
		$vars['heading-weight']    = self::_sanitize_weight( $mods['fl-heading-font-weight'] );
		$vars['heading-transform'] = $mods['fl-heading-font-format'];
		$vars['heading-style']     = self::_get_style( $mods['fl-heading-font-weight'] );
		$vars['title-color']       = FLColor::hex( $mods['fl-title-text-color'] );
		$vars['title-font']        = self::_get_font_family_string( $mods['fl-title-font-family'] );
		$vars['title-weight']      = self::_sanitize_weight( $mods['fl-title-font-weight'] );
		$vars['title-transform']   = $mods['fl-title-font-format'];

		$vars['content-link-decoration']       = $mods['fl-content-link-decoration'];
		$vars['content-link-decoration-hover'] = $mods['fl-content-link-decoration-hover'];

		$vars['custom-h1-style'] = isset( $mods['fl-heading-style'] ) && 'title' === $mods['fl-heading-style'] ? self::_get_style( $mods['fl-title-font-weight'] ) : self::_get_style( $mods['fl-heading-font-weight'] );
		// Custom title styles
		if ( isset( $mods['fl-heading-style'] ) && 'title' !== $mods['fl-heading-style'] ) {
			$vars['title-color']     = FLColor::hex( $mods['fl-heading-text-color'] );
			$vars['title-font']      = self::_get_font_family_string( $mods['fl-heading-font-family'] );
			$vars['title-weight']    = self::_sanitize_weight( $mods['fl-heading-font-weight'] );
			$vars['title-transform'] = $mods['fl-heading-font-format'];
		}

		$responsive_mods = self::_get_responsive_mods();

		foreach ( $responsive_mods as $var => $mod_data ) {
			foreach ( array( 'desktop', 'medium', 'mobile' ) as $device ) {
				if ( 'desktop' !== $device ) {
					$option_key = $mod_data['key'] . '_' . $device;
					$var_key    = 'desktop' !== $device ? $device . '-' . $var : '';
				} else {
					$option_key = $mod_data['key'];
					$var_key    = $var;
				}

				if ( ! isset( $mods[ $option_key ] ) ) {
					$mod_value = $defaults[ $option_key ];
				} else {
					$mod_value = $mods[ $option_key ];
				}

				$unit             = isset( $mod_data['format'] ) ? $mod_data['format'] : '';
				$vars[ $var_key ] = $mod_value . $unit;
			}
		}

		$vars['logo-font']             = self::_get_font_family_string( $mods['fl-logo-font-family'] );
		$vars['logo-weight']           = self::_sanitize_weight( $mods['fl-logo-font-weight'] );
		$vars['logo-size']             = $mods['fl-logo-font-size'] . 'px';
		$vars['logo-text-color']       = $mods['fl-logo-text-color'];
		$vars['logo-text-hover-color'] = $mods['fl-logo-text-hover-color'];
		$vars['logo-tagline-color']    = $mods['fl-logo-tagline-color'];

		// Button Styles
		if ( 'custom' === $mods['fl-button-style'] ) {
			$vars['button-font-weight']        = self::_sanitize_weight( $mods['fl-button-font-weight'] );
			$vars['button-font-family']        = self::_get_font_family_string( $mods['fl-button-font-family'] );
			$vars['button-text-transform']     = $mods['fl-button-text-transform'] ? $mods['fl-button-text-transform'] : 'none';
			$vars['button-font-size']          = is_numeric( $mods['fl-button-font-size'] ) ? $mods['fl-button-font-size'] . 'px' : '16px';
			$vars['button-line-height']        = is_numeric( $mods['fl-button-line-height'] ) ? $mods['fl-button-line-height'] : '1.2';
			$vars['button-color']              = $mods['fl-button-color'] ? $mods['fl-button-color'] : $defaults['fl-button-color'];
			$vars['button-bg-color']           = $mods['fl-button-background-color'] ? $mods['fl-button-background-color'] : $defaults['fl-button-background-color'];
			$vars['button-hover-color']        = $mods['fl-button-hover-color'] ? $mods['fl-button-hover-color'] : $defaults['fl-button-hover-color'];
			$vars['button-bg-hover-color']     = $mods['fl-button-background-hover-color'] ? $mods['fl-button-background-hover-color'] : $defaults['fl-button-background-hover-color'];
			$vars['button-border-width']       = is_numeric( $mods['fl-button-border-width'] ) ? $mods['fl-button-border-width'] . 'px' : '0px';
			$vars['button-border-style']       = $mods['fl-button-border-style'] ? $mods['fl-button-border-style'] : 'none';
			$vars['button-border-color']       = $mods['fl-button-border-color'] ? $mods['fl-button-border-color'] : 'initial';
			$vars['button-border-hover-color'] = $mods['fl-button-border-hover-color'] ? $mods['fl-button-border-hover-color'] : $vars['button-border-color'];
			$vars['button-border']             = $vars['button-border-width'] . ' ' . $vars['button-border-style'] . ' ' . $vars['button-border-color'];
			$vars['button-border-hover']       = $vars['button-border-width'] . ' ' . $vars['button-border-style'] . ' ' . $vars['button-border-color'];
			$vars['button-border-radius']      = $mods['fl-button-border-radius'] . 'px';

		} else {
			$vars['button-font-weight']        = 'normal';
			$vars['button-font-family']        = $vars['text-font'];
			$vars['button-text-transform']     = 'none';
			$vars['button-font-size']          = '16px';
			$vars['medium-button-font-size']   = '16px';
			$vars['mobile-button-font-size']   = '16px';
			$vars['button-line-height']        = '1.2';
			$vars['medium-button-line-height'] = '1.2';
			$vars['mobile-button-line-height'] = '1.2';
			$vars['button-color']              = $vars['accent-fg-color'];
			$vars['button-bg-color']           = $vars['accent-color'];
			$vars['button-hover-color']        = $vars['accent-fg-hover-color'];
			$vars['button-bg-hover-color']     = $vars['accent-hover-color'];
			$vars['button-border']             = '1px solid darken( ' . $vars['accent-color'] . ', 12%)';
			$vars['button-border-hover']       = '1px solid darken( ' . $vars['accent-hover-color'] . ', 12%)';
			$vars['button-border-radius']      = '4px';
			$vars['button-border-hover-color'] = 'darken( ' . $vars['accent-hover-color'] . ', 12%)';
		}

		$vars['woo-button-font-family']         = $vars['button-font-family'];
		$vars['woo-button-font-weight']         = $vars['button-font-weight'];
		$vars['woo-button-text-transform']      = $vars['button-text-transform'];
		$vars['woo-button-border']              = $vars['button-border'];
		$vars['woo-button-border-hover']        = $vars['button-border-hover'];
		$vars['woo-button-border-radius']       = $vars['button-border-radius'];
		$vars['woo-button-hover-border-radius'] = $vars['button-border-radius'];
		$vars['woo-button-border-hover-color']  = $vars['button-border-hover-color'];

		if ( class_exists( 'WooCommerce' ) ) {
			$vars['woo-button-font-size']          = $vars['button-font-size'];
			$vars['medium-woo-button-font-size']   = $vars['medium-button-font-size'];
			$vars['mobile-woo-button-font-size']   = $vars['mobile-button-font-size'];
			$vars['woo-button-line-height']        = $vars['button-line-height'];
			$vars['medium-woo-button-line-height'] = $vars['medium-button-line-height'];
			$vars['mobile-woo-button-line-height'] = $vars['mobile-button-line-height'];

			if ( 'enabled' === $mods['fl-woo-css'] ) {
				$vars['woo-button-color']          = $vars['button-color'];
				$vars['woo-button-bg-color']       = $vars['button-bg-color'];
				$vars['woo-button-hover-color']    = $vars['button-hover-color'];
				$vars['woo-button-bg-hover-color'] = $vars['button-bg-hover-color'];
			} else {
				$vars['woo-button-color']               = '#fff';
				$vars['woo-button-bg-color']            = '#a46497';
				$vars['woo-button-hover-color']         = '#fff';
				$vars['woo-button-bg-hover-color']      = '#96588a';
				$vars['woo-button-border']              = 'none';
				$vars['woo-button-border-hover']        = 'none';
				$vars['woo-button-border-radius']       = '3px';
				$vars['woo-button-hover-border-radius'] = '3px';
			}
		} else {
			$vars['woo-button-font-size']          = '16px';
			$vars['medium-woo-button-font-size']   = '16px';
			$vars['mobile-woo-button-font-size']   = '16px';
			$vars['woo-button-line-height']        = '1.2';
			$vars['medium-woo-button-line-height'] = '1.2';
			$vars['mobile-woo-button-line-height'] = '1.2';
			$vars['woo-button-color']              = '#515151';
			$vars['woo-button-bg-color']           = '#ebe9eb';
			$vars['woo-button-hover-color']        = '#515151';
			$vars['woo-button-bg-hover-color']     = '#dfdcde';
			$vars['woo-button-border']             = 'none';
			$vars['woo-button-border-hover']       = 'none';
			$vars['woo-button-border-radius']      = '4px';
		}

		// Top Bar Background Image
		$vars['topbar-bg-image']      = empty( $mods['fl-topbar-bg-image'] ) ? 'none' : 'url(' . $mods['fl-topbar-bg-image'] . ')';
		$vars['topbar-bg-repeat']     = $mods['fl-topbar-bg-repeat'];
		$vars['topbar-bg-position']   = $mods['fl-topbar-bg-position'];
		$vars['topbar-bg-attachment'] = $mods['fl-topbar-bg-attachment'];
		$vars['topbar-bg-size']       = $mods['fl-topbar-bg-size'];

		// Top Bar Colors
		$vars['topbar-bg-color']          = FLColor::hex_or_transparent( $mods['fl-topbar-bg-color'] );
		$vars['topbar-bg-opacity']        = FLColor::clean_opa( $mods['fl-topbar-bg-opacity'] );
		$vars['topbar-bg-grad']           = $mods['fl-topbar-bg-gradient'] ? 10 : 0;
		$vars['topbar-border-color']      = FLColor::similar( array( 10, 13, 19 ), array( $vars['topbar-bg-color'], $vars['body-bg-color'] ) );
		$vars['topbar-fg-color']          = FLColor::hex( array( $mods['fl-topbar-text-color'], $vars['text-color'] ) );
		$vars['topbar-fg-link-color']     = FLColor::hex( array( $mods['fl-topbar-link-color'], $vars['topbar-fg-color'] ) );
		$vars['topbar-fg-hover-color']    = FLColor::hex( array( $mods['fl-topbar-hover-color'], $vars['topbar-fg-color'] ) );
		$vars['topbar-dropdown-bg-color'] = FLColor::hex( array( $mods['fl-topbar-bg-color'], $vars['body-bg-color'] ) );
		$vars['topbar-icon-bg-color']     = FLColor::hex( $mods['fl-social-icons-bg-color'] );
		$vars['topbar-icon-fg-color']     = FLColor::hex( $mods['fl-social-icons-fg-color'] );
		$vars['topbar-icon-hover-color']  = FLColor::hex( $mods['fl-social-icons-hover-color'] );

		// Header Background Image
		$vars['header-bg-image']      = empty( $mods['fl-header-bg-image'] ) ? 'none' : 'url(' . $mods['fl-header-bg-image'] . ')';
		$vars['header-bg-repeat']     = $mods['fl-header-bg-repeat'];
		$vars['header-bg-position']   = $mods['fl-header-bg-position'];
		$vars['header-bg-attachment'] = $mods['fl-header-bg-attachment'];
		$vars['header-bg-size']       = $mods['fl-header-bg-size'];

		// Header Colors
		$vars['header-bg-color']       = FLColor::hex_or_transparent( $mods['fl-header-bg-color'] );
		$vars['header-bg-opacity']     = FLColor::clean_opa( $mods['fl-header-bg-opacity'] );
		$vars['header-bg-grad']        = $mods['fl-header-bg-gradient'] ? 10 : 0;
		$vars['header-border-color']   = FLColor::similar( array( 10, 13, 19 ), array( $vars['header-bg-color'], $vars['body-bg-color'] ) );
		$vars['header-fg-color']       = FLColor::hex( array( $mods['fl-header-text-color'], $vars['text-color'] ) );
		$vars['header-fg-link-color']  = FLColor::hex( array( $mods['fl-header-link-color'], $vars['header-fg-color'] ) );
		$vars['header-fg-hover-color'] = FLColor::hex( array( $mods['fl-header-hover-color'], $vars['header-fg-color'] ) );
		$vars['header-padding']        = $mods['fl-header-padding'] . 'px';

		// Vertical Header
		$vars['vertical-header-width'] = $mods['fl-vertical-header-width'] . 'px';

		// Fixed Header Background Color
		$vars['fixed-header-bg-color'] = FLColor::hex( array( $vars['header-bg-color'], $vars['body-bg-color'] ) );

		// Nav Fonts
		$vars['nav-font-family'] = self::_get_font_family_string( $mods['fl-nav-font-family'] );
		$vars['nav-font-weight'] = self::_sanitize_weight( $mods['fl-nav-font-weight'] );
		$vars['nav-font-format'] = $mods['fl-nav-font-format'];
		$vars['nav-font-size']   = $mods['fl-nav-font-size'] . 'px';

		// Nav Background Image
		$vars['nav-bg-image']      = empty( $mods['fl-nav-bg-image'] ) ? 'none' : 'url(' . $mods['fl-nav-bg-image'] . ')';
		$vars['nav-bg-repeat']     = $mods['fl-nav-bg-repeat'];
		$vars['nav-bg-position']   = $mods['fl-nav-bg-position'];
		$vars['nav-bg-attachment'] = $mods['fl-nav-bg-attachment'];
		$vars['nav-bg-size']       = $mods['fl-nav-bg-size'];

		// Nav Shadow
		$nav_shadow_size    = $mods['fl-nav-shadow-size'];
		$nav_shadow_color   = $mods['fl-nav-shadow-color'];
		$vars['nav-shadow'] = $nav_shadow_size ? '0 0 ' . $nav_shadow_size . 'px ' . $nav_shadow_color : 'none';

		// Nav Layout
		$vars['nav-item-spacing']        = $mods['fl-nav-item-spacing'] . 'px';
		$vars['nav-menu-top-spacing']    = $mods['fl-nav-menu-top-spacing'] . 'px';
		$vars['header-logo-top-spacing'] = $mods['fl-header-logo-top-spacing'] . 'px';

		// Right Nav, Left Nav, Vertical Nav, Centered Inline Logo Nav Colors
		if ( 'right' === $mods['fl-header-layout'] ||
			'left' === $mods['fl-header-layout'] ||
			'vertical-left' === $mods['fl-header-layout'] ||
			'vertical-right' === $mods['fl-header-layout'] ||
			'centered-inline-logo' === $mods['fl-header-layout']
		) {
			$vars['nav-bg-color']       = $vars['header-bg-color'];
			$vars['nav-bg-grad']        = 0;
			$vars['nav-border-color']   = $vars['header-border-color'];
			$vars['nav-fg-color']       = $vars['header-fg-color'];
			$vars['nav-fg-link-color']  = $vars['header-fg-link-color'];
			$vars['nav-fg-hover-color'] = $vars['header-fg-hover-color'];
			$vars['nav-bg-opacity']     = FLColor::clean_opa( $mods['fl-nav-bg-opacity'] );
		} else {
			$vars['nav-bg-color']       = FLColor::hex_or_transparent( $mods['fl-nav-bg-color'] );
			$vars['nav-bg-opacity']     = FLColor::clean_opa( $mods['fl-nav-bg-opacity'] );
			$vars['nav-bg-grad']        = $mods['fl-nav-bg-gradient'] ? 5 : 0;
			$vars['nav-border-color']   = FLColor::similar( array( 10, 13, 19 ), array( $vars['nav-bg-color'], $vars['body-bg-color'] ) );
			$vars['nav-fg-color']       = FLColor::hex( array( $mods['fl-nav-link-color'], $vars['text-color'] ) );
			$vars['nav-fg-link-color']  = FLColor::hex( array( $mods['fl-nav-link-color'], $vars['text-color'] ) );
			$vars['nav-fg-hover-color'] = FLColor::hex( array( $mods['fl-nav-hover-color'], $vars['nav-fg-color'] ) );
		}

		$vars['header-logo-max-height'] = isset( $mods['fl-logo-max-height'] ) ? ( $mods['fl-logo-max-height'] . 'px ' ) : '46px';

		// Nav Dropdown Colors
		$vars['nav-dropdown-bg-color'] = FLColor::hex( array( $vars['nav-bg-color'], $vars['body-bg-color'] ) );

		// Mobile Nav Colors
		$vars['mobile-nav-btn-color']      = FLColor::similar( array( 10, 13, 19 ), array( $vars['header-bg-color'], $vars['body-bg-color'] ) );
		$vars['mobile-nav-fg-color']       = $vars['header-fg-color'];
		$vars['mobile-nav-fg-link-color']  = $vars['header-fg-link-color'];
		$vars['mobile-nav-fg-hover-color'] = $vars['header-fg-hover-color'];

		// Mobile Nav Breakpoint
		$vars['mobile-nav-breakpoint'] = $mods['fl-nav-breakpoint'];

		// Content Width
		$vars['content-width'] = $mods['fl-content-width'] . 'px';

		// Content Background Image
		$vars['content-bg-image']      = empty( $mods['fl-content-bg-image'] ) ? 'none' : 'url(' . $mods['fl-content-bg-image'] . ')';
		$vars['content-bg-repeat']     = $mods['fl-content-bg-repeat'];
		$vars['content-bg-position']   = $mods['fl-content-bg-position'];
		$vars['content-bg-attachment'] = $mods['fl-content-bg-attachment'];
		$vars['content-bg-size']       = $mods['fl-content-bg-size'];

		// Content Colors
		$vars['content-bg-color']    = FLColor::hex( $mods['fl-content-bg-color'] );
		$vars['content-bg-opacity']  = FLColor::clean_opa( $mods['fl-content-bg-opacity'] );
		$vars['form-input-bg-color'] = FLColor::hex( $mods['fl-form-input-bg-color'] );

		if ( ! FLColor::is_hex( $vars['content-bg-color'] ) ) {
			$vars['content-bg-color-2'] = $vars['body-bg-color-2'];
			$vars['content-bg-color-3'] = $vars['body-bg-color-3'];
			$vars['border-color']       = $vars['body-border-color'];
			$vars['border-color-2']     = $vars['body-border-color-2'];
			$vars['content-fg-color']   = $vars['body-fg-color'];
		} else {
			$vars['content-bg-color-2'] = FLColor::similar( array( 1, 4, 13 ), $vars['content-bg-color'] );
			$vars['content-bg-color-3'] = FLColor::similar( array( 3, 9, 18 ), $vars['content-bg-color'] );
			$vars['border-color']       = FLColor::similar( array( 10, 9, 19 ), $vars['content-bg-color'] );
			$vars['border-color-2']     = FLColor::similar( array( 20, 20, 30 ), $vars['content-bg-color'] );
			$vars['content-fg-color']   = FLColor::foreground( $vars['content-bg-color'] );
		}

		// Custom Blog Sidebar Size
		$vars['custom-sidebar-size'] = 'custom' === $mods['fl-blog-sidebar-size'] ? $mods['fl-blog-custom-sidebar-size'] . '%' : 0;

		// Custom WooCommerce Sidebar Size
		$vars['custom-woo-sidebar-size'] = 'custom' === $mods['fl-woo-sidebar-size'] ? $mods['fl-woo-custom-sidebar-size'] . '%' : 0;

		// Inputs Colors
		$vars['input-bg-focus-color']     = FLColor::hex( array( $vars['content-bg-color'], $vars['body-bg-color'], '#ffffff' ) );
		$vars['input-border-color']       = FLColor::hex( array( $vars['border-color'], $vars['body-border-color'], '#e6e6e6' ) );
		$vars['input-border-focus-color'] = FLColor::hex( array( $vars['border-color-2'], $vars['body-border-color-2'], '#cccccc' ) );
		if ( 'transparent' === $vars['form-input-bg-color'] ) {
			$vars['input-bg-color'] = FLColor::hex( array( $vars['content-bg-color-2'], $vars['body-bg-color-2'], '#fcfcfc' ) );
		} else {
			$vars['input-bg-color'] = FLColor::hex_or_transparent( $vars['form-input-bg-color'] );
		}

		// Footer Widget Background Image
		$vars['footer-widgets-bg-image']      = empty( $mods['fl-footer-widgets-bg-image'] ) ? 'none' : 'url(' . $mods['fl-footer-widgets-bg-image'] . ')';
		$vars['footer-widgets-bg-repeat']     = $mods['fl-footer-widgets-bg-repeat'];
		$vars['footer-widgets-bg-position']   = $mods['fl-footer-widgets-bg-position'];
		$vars['footer-widgets-bg-attachment'] = $mods['fl-footer-widgets-bg-attachment'];
		$vars['footer-widgets-bg-size']       = $mods['fl-footer-widgets-bg-size'];

		// Footer Widget Colors
		$vars['footer-widgets-bg-color']       = FLColor::hex_or_transparent( $mods['fl-footer-widgets-bg-color'] );
		$vars['footer-widgets-bg-opacity']     = FLColor::clean_opa( $mods['fl-footer-widgets-bg-opacity'] );
		$vars['footer-widgets-bg-grad']        = $mods['fl-footer-widgets-bg-gradient'] ? 15 : 0;
		$vars['footer-widgets-border-color']   = FLColor::similar( array( 10, 13, 19 ), array( $vars['footer-widgets-bg-color'], $vars['body-bg-color'] ) );
		$vars['footer-widgets-fg-color']       = FLColor::hex( array( $mods['fl-footer-widgets-text-color'], $vars['text-color'] ) );
		$vars['footer-widgets-fg-link-color']  = FLColor::hex( array( $mods['fl-footer-widgets-link-color'], $vars['footer-widgets-fg-color'] ) );
		$vars['footer-widgets-fg-hover-color'] = FLColor::hex( array( $mods['fl-footer-widgets-hover-color'], $vars['footer-widgets-fg-color'] ) );

		// Footer Background Image
		$vars['footer-bg-image']      = empty( $mods['fl-footer-bg-image'] ) ? 'none' : 'url(' . $mods['fl-footer-bg-image'] . ')';
		$vars['footer-bg-repeat']     = $mods['fl-footer-bg-repeat'];
		$vars['footer-bg-position']   = $mods['fl-footer-bg-position'];
		$vars['footer-bg-attachment'] = $mods['fl-footer-bg-attachment'];
		$vars['footer-bg-size']       = $mods['fl-footer-bg-size'];

		// Footer Colors
		$vars['footer-bg-color']       = FLColor::hex_or_transparent( $mods['fl-footer-bg-color'] );
		$vars['footer-bg-opacity']     = FLColor::clean_opa( $mods['fl-footer-bg-opacity'] );
		$vars['footer-bg-grad']        = $mods['fl-footer-bg-gradient'] ? 8 : 0;
		$vars['footer-border-color']   = FLColor::similar( array( 10, 13, 19 ), array( $vars['footer-bg-color'], $vars['body-bg-color'] ) );
		$vars['footer-fg-color']       = FLColor::hex( array( $mods['fl-footer-text-color'], $vars['text-color'] ) );
		$vars['footer-fg-link-color']  = FLColor::hex( array( $mods['fl-footer-link-color'], $vars['footer-fg-color'] ) );
		$vars['footer-fg-hover-color'] = FLColor::hex( array( $mods['fl-footer-hover-color'], $vars['footer-fg-color'] ) );

		// WooCommerce
		if ( FLTheme::is_plugin_active( 'woocommerce' ) ) {
			$vars['woo-cats-add-button'] = 'hidden' === $mods['fl-woo-cart-button'] ? 'none' : 'inline-block';
		}

		$fa5_builder = ( class_exists( 'FLBuilder' ) && method_exists( 'FLBuilder', 'fa5_pro_enabled' ) ) ? FLBuilder::fa5_pro_enabled() : false;
		$fa5_filter  = apply_filters( 'fl_enable_fa5_pro', false );

		if ( $fa5_builder || $fa5_filter ) {
			$vars['font-awesome-family'] = "'Font Awesome 5 Pro'";
		} else {
			$vars['font-awesome-family'] = "'Font Awesome 5 Free'";
		}

		// check for FA plugin.
		if ( class_exists( 'FLBuilderFontAwesome' ) ) {
			if ( FLBuilderFontAwesome::is_installed() ) {
				$vars['font-awesome-family']  = sprintf( "'Font Awesome %s", floor( (float) fa()->version() ) );
				$vars['font-awesome-family'] .= FLBuilderFontAwesome::is_pro_enabled( false ) ? " Pro'" : " Free'";
			}
		}

		// Let developers add their own vars.
		$vars = apply_filters( 'fl_less_vars', $vars );

		// Build the vars string
		foreach ( $vars as $key => $value ) {
			$vars_string .= '@' . $key . ':' . $value . ';';
		}

		// Return the vars string
		return $vars_string;
	}

	/**
	 * @since 1.7.3
	 */
	static public function _get_responsive_mods() {

		// Responsive controls style
		$responsive_mods = array(
			'text-size'                   => array(
				'key'    => 'fl-body-font-size',
				'format' => 'px',
			),
			'button-font-size'            => array(
				'key'    => 'fl-button-font-size',
				'format' => 'px',
			),
			'button-line-height'          => array(
				'key' => 'fl-button-line-height',
			),
			'line-height'                 => array(
				'key' => 'fl-body-line-height',
			),
			'h1-size'                     => array(
				'key'    => 'fl-h1-font-size',
				'format' => 'px',
			),
			'h1-line-height'              => array(
				'key' => 'fl-h1-line-height',
			),
			'h1-letter-spacing'           => array(
				'key'    => 'fl-h1-letter-spacing',
				'format' => 'px',
			),
			'h2-size'                     => array(
				'key'    => 'fl-h2-font-size',
				'format' => 'px',
			),
			'h2-line-height'              => array(
				'key' => 'fl-h2-line-height',
			),
			'h2-letter-spacing'           => array(
				'key'    => 'fl-h2-letter-spacing',
				'format' => 'px',
			),
			'h3-size'                     => array(
				'key'    => 'fl-h3-font-size',
				'format' => 'px',
			),
			'h3-line-height'              => array(
				'key' => 'fl-h3-line-height',
			),
			'h3-letter-spacing'           => array(
				'key'    => 'fl-h3-letter-spacing',
				'format' => 'px',
			),
			'h4-size'                     => array(
				'key'    => 'fl-h4-font-size',
				'format' => 'px',
			),
			'h4-line-height'              => array(
				'key' => 'fl-h4-line-height',
			),
			'h4-letter-spacing'           => array(
				'key'    => 'fl-h4-letter-spacing',
				'format' => 'px',
			),
			'h5-size'                     => array(
				'key'    => 'fl-h5-font-size',
				'format' => 'px',
			),
			'h5-line-height'              => array(
				'key' => 'fl-h5-line-height',
			),
			'h5-letter-spacing'           => array(
				'key'    => 'fl-h5-letter-spacing',
				'format' => 'px',
			),
			'h6-size'                     => array(
				'key'    => 'fl-h6-font-size',
				'format' => 'px',
			),
			'h6-line-height'              => array(
				'key' => 'fl-h6-line-height',
			),
			'h6-letter-spacing'           => array(
				'key'    => 'fl-h6-letter-spacing',
				'format' => 'px',
			),
			'hamburger-icon-top-position' => array(
				'key'    => 'fl-hamburger-icon-top-position',
				'format' => 'px',
			),
		);
		return $responsive_mods;
	}

	/**
	 * Sanitize the weight string.
	 * @since 1.7
	 */
	static private function _sanitize_weight( $weight ) {

		$weight = str_replace( 'italic', '', $weight );
		return empty( $weight ) ? 400 : $weight;
	}

	/**
	 * Get font style.
	 * @since 1.7.1
	 */
	static private function _get_style( $weight ) {

		if ( false !== strpos( $weight, 'italic' ) ) {
			return 'italic';
		}
		return 'normal';
	}

	/**
	 * Builds a font family string using the provided font key.
	 *
	 * @since 1.2.0
	 * @access private
	 * @param string $font The font key.
	 * @return string
	 */
	static private function _get_font_family_string( $font ) {
		$string = '';
		$system = FLFontFamilies::get_system();
		$google = FLFontFamilies::get_google_fallback( $font );
		if ( isset( $system[ $font ] ) ) {
			$string = '"' . $font . '", ' . $system[ $font ]['fallback'];
		} elseif ( $google ) {
			$string = '"' . $font . '", ' . $google;
		} else {
			$string = '"' . $font . '", sans-serif';
		}

		return $string;
	}

	/**
	 * Regx replace callback for LESS to fix issues with IE filters.
	 *
	 * @since 1.2.0
	 * @access public
	 * @param array $matches
	 * @return string
	 */
	static public function _preg_replace_less( $matches ) {
		if ( ! empty( $matches[1] ) ) {
			return 'filter: ~"' . $matches[1] . '";';
		}

		return $matches[0];
	}
}

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