# booking/11.6/includes/_front_end/hooks/class-fe-bfb-settings-hooks.php Booking Calendar, version 11.6. 518 lines. - Page: https://pluginprobe.com/plugins/booking/11.6/code/includes/_front_end/hooks/class-fe-bfb-settings-hooks.php - Raw: https://pluginprobe.com/plugins/booking/11.6/raw/includes/_front_end/hooks/class-fe-bfb-settings-hooks.php - Modified: 2026-08-04T08:52:12+00:00 Line numbers below start at 1. Link to a line or a range by appending a fragment to the page URL, for example `https://pluginprobe.com/plugins/booking/11.6/code/includes/_front_end/hooks/class-fe-bfb-settings-hooks.php#L10-L20`. ```php Front-End Booking Form Post-Processing Hooks * * This file registers hook callbacks that apply **BFB form settings** (decoded JSON settings array) to the final booking form HTML that is rendered on the front-end. * * These hooks are executed inside `WPBC_FE_Form_Body_Renderer::render()` in this order: * * 1) `wpbc_booking_form__body_html__before_postprocess` --> raw **form body HTML only** (no injected calendar/captcha/extra calendars yet). * * 2) `wpbc_booking_form__html__before_wrapper` --> composed **form HTML** where calendar/captcha/extra calendars already injected, * * 3) `wpbc_booking_form__wrapped_html__before_inline_scripts --> full **wrapped HTML** including the wrapper `
` and the `
` markup * * 4) `wpbc_booking_form__wrapped_html__after_inline_scripts` --> the final HTML after inline scripts are appended. * * Notes: * - `$bfb_settings` is expected to be an array like: * [ * 'options' => [ 'booking_form_theme' => 'wpbc_theme_dark_1', ... ] * ] * * @package Booking Calendar * @since 11.0.x * @file ../includes/_front_end/hooks/class-fe-bfb-settings-hooks.php */ if ( ! defined( 'ABSPATH' ) ) { exit; } /** * ['options']['booking_form_layout_width'] and appearance options -> inject per-form CSS variables into the BFB form root wrapper. On Step 1. * * Purpose: * - If the form body contains the BFB root element (class `wpbc_bfb_form`), * inject CSS Custom Properties (variables) into its `style` attribute. * * This hook must run **before** legacy post-processing inserts calendars/captcha, because it targets the BFB body root and should not depend on wrapper existence. * * Expected `$bfb_settings` format: - `$bfb_settings['css_vars']` is an associative array: `--var-name` => `value`. * * @since 11.0.x * * @param string $form_html Raw booking form body HTML (no calendar/captcha injected yet). * @param array $bfb_settings Decoded BFB settings array (may be empty). * @param int $resource_id Booking resource ID. * @param string $custom_booking_form_name Booking form slug/name (legacy: "standard"). * * @return string Filtered body HTML. */ function wpbc_booking_form__body_html__before_postprocess__apply_bfb_vars( $form_html, $bfb_settings, $resource_id, $custom_booking_form_name ) { $form_html = (string) $form_html; $bfb_settings = is_array( $bfb_settings ) ? $bfb_settings : array(); // If body has no BFB root, do nothing (fast path). if ( false === strpos( $form_html, 'wpbc_bfb_form' ) ) { return $form_html; } // Local helper (no global function redeclare risk). $sanitize_css_length = function( $v ) { $v = trim( (string) $v ); if ( '' === $v ) { return ''; } // Allow only: number + unit. return preg_match( '/^\d+(?:\.\d+)?(?:%|px|rem|em|vw|vh)$/', $v ) ? $v : ''; }; $width = ''; $appearance_style = ''; $appearance_values = array(); if ( ! empty( $bfb_settings['options'] ) && is_array( $bfb_settings['options'] ) ) { $options = $bfb_settings['options']; $width = isset( $options['booking_form_layout_width'] ) ? $sanitize_css_length( $options['booking_form_layout_width'] ) : ''; $appearance_style = isset( $options['booking_form_container_style'] ) ? (string) $options['booking_form_container_style'] : ''; $appearance_values = $options; } $css_vars = ( ! empty( $bfb_settings['css_vars'] ) && is_array( $bfb_settings['css_vars'] ) ) ? $bfb_settings['css_vars'] : array(); // Use a dedicated CSS var name. if ( '' !== $width ) { $css_vars['--wpbc-bfb-booking_form_layout_width'] = $width; } $appearance_vars = wpbc_bfb_settings__get_form_style_css_vars(); if ( ! empty( $appearance_vars ) ) { $css_vars = array_merge( $css_vars, $appearance_vars ); } if ( empty( $css_vars ) ) { return $form_html; } $form_html = WPBC_FE_Form_Style_Injector::inject_css_vars_into_bfb_root( $form_html, $css_vars ); if ( wpbc_bfb_settings__is_custom_form_style( wpbc_bfb_settings__get_current_form_style() ) ) { $form_html = WPBC_FE_Form_Style_Injector::add_class_to_first_tag_with_classes( $form_html, array( 'wpbc_bfb_form' ), 'wpbc_bfb_form_appearance_custom' ); } return $form_html; } add_filter( 'wpbc_booking_form__body_html__before_postprocess', 'wpbc_booking_form__body_html__before_postprocess__apply_bfb_vars', 10, 4 ); /** * Resolve form appearance settings into CSS variables. * * @param string $style bordered|none|soft|custom. * @param array $options Form settings options. * * @return array */ function wpbc_bfb_settings__get_form_appearance_presets() { return array( 'bordered' => array( 'background' => '#ffffff', 'border_color' => '#cccccc', 'border_width' => '1px', 'radius' => '2px', 'padding' => '10px 30px', 'shadow' => 'rgba(0, 0, 0, 0.05) 0px 2px 6px 0px', ), 'none' => array( 'background' => 'transparent', 'border_color' => 'transparent', 'border_width' => '0px', 'radius' => '0px', 'padding' => '0px', 'shadow' => 'none', ), 'soft' => array( 'background' => '#f9f9fa', 'border_color' => '#fff', 'border_width' => '3px', 'radius' => '8px', 'padding' => '20px', 'shadow' => 'rgba(15, 23, 42, 0.06) 0px 4px 16px 0px', ), ); } function wpbc_bfb_settings__is_dark_form_theme( $options ) { $options = is_array( $options ) ? $options : array(); return ( isset( $options['booking_form_theme'] ) && 'wpbc_theme_dark_1' === (string) $options['booking_form_theme'] ); } function wpbc_bfb_settings__get_form_appearance_preset_for_options( $style, $options ) { $presets = wpbc_bfb_settings__get_form_appearance_presets(); $style = (string) $style; if ( ! wpbc_bfb_settings__is_dark_form_theme( $options ) ) { return isset( $presets[ $style ] ) ? $presets[ $style ] : $presets['bordered']; } if ( 'soft' === $style ) { return array( 'background' => '#1f2937', 'border_color' => '#334155', 'border_width' => '3px', 'radius' => '8px', 'padding' => '20px', 'shadow' => 'rgba(0, 0, 0, 0.24) 0px 4px 16px 0px', ); } return isset( $presets[ $style ] ) ? $presets[ $style ] : $presets['bordered']; } function wpbc_bfb_settings__sanitize_form_appearance_values( $values ) { $values = is_array( $values ) ? $values : array(); $sanitize_color = function ( $value, $fallback ) { $value = trim( (string) $value ); if ( preg_match( '/^#(?:[0-9a-f]{3}|[0-9a-f]{6})$/i', $value ) || 'transparent' === $value ) { return $value; } return $fallback; }; $sanitize_length = function ( $value, $fallback ) { $value = trim( (string) $value ); if ( preg_match( '/^\d+(?:\.\d+)?(?:px|rem|em|%)$/i', $value ) ) { return $value; } return $fallback; }; $sanitize_spacing = function ( $value, $fallback ) { $value = preg_replace( '/\s+/', ' ', trim( (string) $value ) ); if ( '' === $value ) { return $fallback; } $parts = explode( ' ', $value ); if ( count( $parts ) < 1 || count( $parts ) > 4 ) { return $fallback; } foreach ( $parts as $part ) { if ( ! preg_match( '/^\d+(?:\.\d+)?(?:px|rem|em|%)$/i', $part ) ) { return $fallback; } } return implode( ' ', $parts ); }; return array( 'background' => $sanitize_color( isset( $values['background'] ) ? $values['background'] : '', '#ffffff' ), 'border_color' => $sanitize_color( isset( $values['border_color'] ) ? $values['border_color'] : '', '#cccccc' ), 'border_width' => $sanitize_length( isset( $values['border_width'] ) ? $values['border_width'] : '', '1px' ), 'radius' => $sanitize_length( isset( $values['radius'] ) ? $values['radius'] : '', '2px' ), 'padding' => $sanitize_spacing( isset( $values['padding'] ) ? $values['padding'] : '', '10px 30px' ), 'shadow' => isset( $values['shadow'] ) ? (string) $values['shadow'] : 'rgba(0, 0, 0, 0.05) 0px 2px 6px 0px', ); } function wpbc_bfb_settings__sanitize_form_design_color_values( $values ) { $values = is_array( $values ) ? $values : array(); $sanitize_color = function ( $value ) { $value = trim( (string) $value ); if ( '' === $value ) { return ''; } if ( preg_match( '/^#(?:[0-9a-f]{3}|[0-9a-f]{6})$/i', $value ) ) { return $value; } return ''; }; return array( 'text_color' => $sanitize_color( isset( $values['booking_form_text_color'] ) ? $values['booking_form_text_color'] : '' ), 'field_background_color' => $sanitize_color( isset( $values['booking_form_field_background_color'] ) ? $values['booking_form_field_background_color'] : '' ), 'field_text_color' => $sanitize_color( isset( $values['booking_form_field_text_color'] ) ? $values['booking_form_field_text_color'] : '' ), 'field_border_color' => $sanitize_color( isset( $values['booking_form_field_border_color'] ) ? $values['booking_form_field_border_color'] : '' ), ); } function wpbc_bfb_settings__is_custom_form_appearance( $style, $options ) { $style = (string) $style; $options = is_array( $options ) ? $options : array(); if ( '' === $style && isset( $options['booking_form_container_style'] ) ) { $style = (string) $options['booking_form_container_style']; } return ( 'custom' === $style ); } function wpbc_bfb_settings__get_global_form_appearance_options() { $preset = get_bk_option( 'booking_form_appearance_preset' ); $preset = in_array( $preset, array( 'bordered', 'none', 'soft', 'custom' ), true ) ? $preset : 'bordered'; if ( 'custom' === $preset ) { $preset = 'bordered'; } return array( 'booking_form_theme' => get_bk_option( 'booking_form_theme' ), 'booking_form_container_style' => $preset, 'booking_form_background_color' => get_bk_option( 'booking_form_appearance_background_color' ), 'booking_form_border_color' => get_bk_option( 'booking_form_appearance_border_color' ), 'booking_form_border_width' => get_bk_option( 'booking_form_appearance_border_width' ), 'booking_form_border_radius' => get_bk_option( 'booking_form_appearance_border_radius' ), 'booking_form_padding' => get_bk_option( 'booking_form_appearance_padding' ), 'booking_form_text_color' => '', 'booking_form_field_background_color' => '', 'booking_form_field_text_color' => '', 'booking_form_field_border_color' => '', ); } function wpbc_bfb_settings__get_form_appearance_css_vars( $style, $options ) { $style = (string) $style; $options = is_array( $options ) ? $options : array(); $design_options = $options; $css_vars = array(); $presets = wpbc_bfb_settings__get_form_appearance_presets(); if ( '' === $style || 'inherit' === $style ) { $options = wpbc_bfb_settings__get_global_form_appearance_options(); $style = isset( $options['booking_form_container_style'] ) ? (string) $options['booking_form_container_style'] : 'bordered'; } if ( 'bordered' !== $style ) { if ( 'custom' === $style ) { $resolved = wpbc_bfb_settings__sanitize_form_appearance_values( array( 'background' => isset( $options['booking_form_background_color'] ) ? $options['booking_form_background_color'] : '', 'border_color' => isset( $options['booking_form_border_color'] ) ? $options['booking_form_border_color'] : '', 'border_width' => isset( $options['booking_form_border_width'] ) ? $options['booking_form_border_width'] : '', 'radius' => isset( $options['booking_form_border_radius'] ) ? $options['booking_form_border_radius'] : '', 'padding' => isset( $options['booking_form_padding'] ) ? $options['booking_form_padding'] : '', 'shadow' => 'rgba(0, 0, 0, 0.05) 0px 2px 6px 0px', ) ); } elseif ( isset( $presets[ $style ] ) ) { $resolved = wpbc_bfb_settings__get_form_appearance_preset_for_options( $style, $options ); } else { $resolved = array(); } if ( ! empty( $resolved ) ) { $css_vars['--wpbc-bfb-form-background'] = $resolved['background']; $css_vars['--wpbc-bfb-form-border-color'] = $resolved['border_color']; $css_vars['--wpbc-bfb-form-border-width'] = $resolved['border_width']; $css_vars['--wpbc-bfb-form-border-radius'] = $resolved['radius']; $css_vars['--wpbc-bfb-form-padding'] = $resolved['padding']; $css_vars['--wpbc-bfb-form-box-shadow'] = $resolved['shadow']; } } if ( ! wpbc_bfb_settings__is_custom_form_appearance( $style, $design_options ) && wpbc_bfb_settings__is_dark_form_theme( $options ) && 'none' === $style ) { $css_vars['--wpbc_form-label-color'] = '#1d2327'; $css_vars['--wpbc_form-label-sublabel-color'] = '#1d2327'; } if ( wpbc_bfb_settings__is_custom_form_appearance( $style, $design_options ) ) { $design_values = wpbc_bfb_settings__sanitize_form_design_color_values( $design_options ); if ( '' !== $design_values['text_color'] ) { $css_vars['--wpbc_form-label-color'] = $design_values['text_color']; $css_vars['--wpbc_form-label-sublabel-color'] = $design_values['text_color']; } if ( '' !== $design_values['field_background_color'] ) { $css_vars['--wpbc_form-field-background-color'] = $design_values['field_background_color']; $css_vars['--wpbc_form-field-menu-color'] = $design_values['field_background_color']; } if ( '' !== $design_values['field_text_color'] ) { $css_vars['--wpbc_form-field-text-color'] = $design_values['field_text_color']; } if ( '' !== $design_values['field_border_color'] ) { $css_vars['--wpbc_form-field-border-color'] = $design_values['field_border_color']; $css_vars['--wpbc_form-field-border-color-spare'] = $design_values['field_border_color']; } } return $css_vars; } function wpbc_booking_form__wrapped_html__before_inline_scripts__apply_custom_appearance_class( $wrapped_html, $bfb_settings, $resource_id, $custom_booking_form_name ) { $wrapped_html = (string) $wrapped_html; $style = wpbc_bfb_settings__get_current_form_style(); $css_vars = wpbc_bfb_settings__get_form_style_css_vars( $style ); if ( ! empty( $css_vars ) ) { $wrapped_html = WPBC_FE_Form_Style_Injector::inject_css_vars_into_form_wrapper( $wrapped_html, $css_vars ); } if ( wpbc_bfb_settings__is_custom_form_style( $style ) ) { $wrapped_html = WPBC_FE_Form_Style_Injector::add_class_to_first_tag_with_classes( $wrapped_html, array( 'wpbc_container', 'wpbc_form' ), 'wpbc_bfb_form_appearance_custom' ); } return $wrapped_html; } add_filter( 'wpbc_booking_form__wrapped_html__before_inline_scripts', 'wpbc_booking_form__wrapped_html__before_inline_scripts__apply_custom_appearance_class', 12, 4 ); /** * ['options'][booking_form_theme] -> Apply a "theme" CSS class to the main booking form wrapper container. On Step 3. * * Purpose: * - Add `$bfb_settings['options']['booking_form_theme']` as an extra class to the FIRST wrapper container: * `
` * * Why here: * - The wrapper container does not exist until `WPBC_FE_Form_Wrapper::wrap()` runs, therefore this must be executed on the wrapped HTML stage. * * Potential limitations: * - This implementation supports a **single** class value. If you plan to support multiple * classes in one setting (space-separated), you should split and sanitize each class. * * @since 11.0.x * * @param string $wrapped_html Fully wrapped booking form HTML (before inline scripts appended). * @param array $bfb_settings Decoded BFB settings array (may be empty). * @param int $resource_id Booking resource ID. * @param string $custom_booking_form_name Booking form slug/name (legacy: "standard"). * * @return string Filtered wrapped HTML. */ function wpbc_booking_form__wrapped_html__before_inline_scripts__apply_theme_class( $wrapped_html, $bfb_settings, $resource_id, $custom_booking_form_name ) { $wrapped_html = (string) $wrapped_html; $preset = wpbc_bfb_settings__get_form_style_preset( wpbc_bfb_settings__get_current_form_style() ); $raw_theme = isset( $preset['theme_class'] ) ? trim( (string) $preset['theme_class'] ) : ''; $theme_class_arr = array(); // token => true . $parts = preg_split( '/\s+/', $raw_theme, - 1, PREG_SPLIT_NO_EMPTY ); foreach ( $parts as $part ) { $tok = sanitize_html_class( (string) $part ); if ( '' === $tok ) { continue; } $theme_class_arr[ $tok ] = true; } $theme_class_arr = array_keys( $theme_class_arr ); /** * Find the first wrapper container: *
* * BUG CHECK: * - The pattern is "tempered" to find the class attribute containing both tokens. * - It does not require order (wpbc_container can appear before/after wpbc_form). * - It matches the opening
tag only. */ $pattern = '/]*\bclass\s*=\s*(["\'])(?:(?!\1).)*\bwpbc_container\b(?:(?!\1).)*\bwpbc_form\b(?:(?!\1).)*\1[^>]*>/i'; return preg_replace_callback( $pattern, function ( $m ) use ( $theme_class_arr ) { $tag = $m[0]; if ( preg_match( '/\bclass\s*=\s*(["\'])(.*?)\1/i', $tag, $cm ) ) { $quote = $cm[1]; $classes = (string) $cm[2]; // Optional but recommended: remove any existing wpbc_theme_* to avoid conflicts. $classes = preg_replace( '/\bwpbc_theme_[A-Za-z0-9_-]+\b/', '', $classes ); $classes = trim( preg_replace( '/\s+/', ' ', $classes ) ); // Add missing theme tokens. foreach ( $theme_class_arr as $tok ) { if ( false === strpos( ' ' . $classes . ' ', ' ' . $tok . ' ' ) ) { $classes = trim( $classes . ' ' . $tok ); } } $tag = preg_replace( '/\bclass\s*=\s*(["\'])(.*?)\1/i', 'class=' . $quote . esc_attr( $classes ) . $quote, $tag, 1 ); } return $tag; }, $wrapped_html, 1 ); } add_filter( 'wpbc_booking_form__wrapped_html__before_inline_scripts', 'wpbc_booking_form__wrapped_html__before_inline_scripts__apply_theme_class', 10, 4 ); /** * ['options']['booking_type_of_day_selections'] -> Set per-form day selection mode for calendar init. * * Uses shared calendar mode helpers for: single | multiple | range. * * @param string $wrapped_html * @param array $bfb_settings * @param int $resource_id * @param string $custom_booking_form_name * * @return string */ function wpbc_booking_form__wrapped_html__before_inline_scripts__apply_day_selection_mode( $wrapped_html, $bfb_settings, $resource_id, $custom_booking_form_name ) { $wrapped_html = (string) $wrapped_html; $bfb_settings = is_array( $bfb_settings ) ? $bfb_settings : array(); $mode = ''; if ( ! empty( $bfb_settings['options'] ) && is_array( $bfb_settings['options'] ) ) { if ( isset( $bfb_settings['options']['booking_type_of_day_selections'] ) ) { $mode = (string) $bfb_settings['options']['booking_type_of_day_selections']; } } if ( ! in_array( $mode, array( 'single', 'multiple', 'range' ), true ) ) { return $wrapped_html; } $rid = (int) $resource_id; $mode_functions = array( 'single' => 'wpbc_cal_ready_days_select__single', 'multiple' => 'wpbc_cal_ready_days_select__multiple', 'range' => 'wpbc_cal_ready_days_select__range_mode', ); $fn = $mode_functions[ $mode ]; $js_body = '(function(){'; $js_body .= 'var rid=' . $rid . ';'; $js_body .= 'var tries=0;'; $js_body .= 'function run(){'; $js_body .= ' if (typeof window.' . $fn . ' === "function") { window.' . $fn . '(rid); return; }'; $js_body .= ' if (tries++ < 40) { setTimeout(run,50); }'; $js_body .= '}'; $js_body .= 'run();'; $js_body .= '}());'; $can_use_wp_inline = ( ! wp_doing_ajax() ); // Elementor safe adding inline scripts after loaded of 'wpbc_all' script. if ( $can_use_wp_inline && class_exists( 'WPBC_FE_Assets' ) && function_exists( 'wp_script_is' ) ) { $assets_key = 'wpbc:day-select:' . $rid . ':' . md5( (string) $custom_booking_form_name . ':' . $mode ); $added = WPBC_FE_Assets::add_jq_ready_js_to_wp_script( 'wpbc_all', $js_body, $assets_key ); if ( $added ) { return $wrapped_html; // no ' . "\n"; return $wrapped_html; } add_filter( 'wpbc_booking_form__wrapped_html__before_inline_scripts', 'wpbc_booking_form__wrapped_html__before_inline_scripts__apply_day_selection_mode', 9, 4 ); ```