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✏️ Editing: modifications.php

<?php
/**
 * Utility functions
 *
 * @package CF7BS
 * @author Felix Arntz <felix-arntz@leaves-and-love.net>
 * @since 1.0.0
 */

function cf7bs_selected( $selected, $current = true, $echo = true ) {
	$result = '';

if ( $selected == $current ) {
		$result = ' selected';
		if ( ! wpcf7_support_html5() ) {
			$result .= '="selected"';
		}
	}

if ( $echo ) {
		echo $result;
	}

return $result;
}

function cf7bs_multiple_selected( $selected, $current = true, $echo = true ) {
	$result = '';

if ( is_array( $selected ) ) {
		if ( in_array( $current, $selected ) ) {
			$result = ' selected';
			if ( ! wpcf7_support_html5() ) {
				$result .= '="selected"';
			}
		}
	}

if ( $echo ) {
		echo $result;
	}

return $result;
}

function cf7bs_checked( $checked, $current = true, $echo = true ) {
	$result = '';

if ( $checked == $current ) {
		$result = ' checked';
		if ( ! wpcf7_support_html5() ) {
			$result .= '="checked"';
		}
	}

if ( $echo ) {
		echo $result;
	}

return $result;
}

function cf7bs_multiple_checked( $checked, $current = true, $echo = true ) {
	$result = '';

if ( is_array( $checked ) ) {
		if ( in_array( $current, $checked ) ) {
			$result = ' checked';
			if ( ! wpcf7_support_html5() ) {
				$result .= '="checked"';
			}
		}
	}

if ( $echo ) {
		echo $result;
	}

return $result;
}

function cf7bs_enqueue_scripts() {
	$in_footer = true;
	if ( 'header' === WPCF7_LOAD_JS ) {
		$in_footer = false;
	}

$min = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';

wp_enqueue_script( 'contact-form-7-bootstrap', CF7BS_URL . '/assets/dist/js/scripts' . $min . '.js', array( 'jquery', 'jquery-form', 'contact-form-7' ), CF7BS_VERSION, $in_footer );
}
add_action( 'wpcf7_enqueue_scripts', 'cf7bs_enqueue_scripts' );

function cf7bs_enqueue_styles() {
	wp_dequeue_style( 'contact-form-7' );
}
add_action( 'wpcf7_enqueue_styles', 'cf7bs_enqueue_styles' );

function cf7bs_inline_styles() {
	$url = function_exists( 'wpcf7_plugin_url' ) ? wpcf7_plugin_url() : WPCF7_PLUGIN_URL;
	$url = untrailingslashit( $url );

?>
	<style type="text/css">
		div.wpcf7 .screen-reader-response {
			position: absolute;
			overflow: hidden;
			clip: rect(1px, 1px, 1px, 1px);
			height: 1px;
			width: 1px;
			margin: 0;
			padding: 0;
			border: 0;
		}

div.wpcf7 .form-inline img.ajax-loader {
			display: inline;
		}

div.wpcf7 .ajax-loader {
			visibility: hidden;
			display: inline-block;
			background-image: url('<?php echo $url . '/images/ajax-loader.gif'; ?>');
			width: 16px;
			height: 16px;
			border: none;
			padding: 0;
			margin: 0 0 0 4px;
			vertical-align: middle;
		}

div.wpcf7 .ajax-loader.is-active {
			visibility: visible;
		}

div.wpcf7 div.ajax-error {
			display: none;
		}

div.wpcf7 .wpcf7-display-none {
			display: none;
		}

div.wpcf7 .placeheld {
			color: #888;
		}

div.wpcf7 .wpcf7-recaptcha iframe {
			margin-bottom: 0;
		}

div.wpcf7 input[type="file"] {
			cursor: pointer;
		}

div.wpcf7 input[type="file"]:disabled {
			cursor: default;
		}

div.wpcf7 .form-inline .form-group {
			max-width: 250px;
		}

div.wpcf7 .input-group-addon img {
			height: 100%;
			width: auto;
			max-width: none !important;
			border-radius: 5px;
		}

div.wpcf7 .input-group-addon.input-group-has-image {
			padding: 0;
		}
	</style>
	<?php
}
add_action( 'wp_head', 'cf7bs_inline_styles' );

function cf7bs_form_novalidate( $novalidate ) {
	if ( wpcf7_support_html5() ) {
		return ' novalidate';
	}
	return '';
}
add_filter( 'wpcf7_form_novalidate', 'cf7bs_form_novalidate' );

function cf7bs_form_response_output( $output, $class, $content, $form_obj ) {
	$type = 'warning';

if ( false !== strpos( $class, 'wpcf7-display-none' ) ) {
		$type = '';
	} else {
		if ( false !== strpos( $class, 'wpcf7-mail-sent-ng' ) ) {
			$type = 'danger';
		} elseif ( false !== strpos( $class, 'wpcf7-mail-sent-ok' ) ) {
			$type = 'success';
		} else {
			$type = 'warning';
		}
	}

$alert = new CF7BS_Alert( array(
		'type'			=> $type,
		'class'			=> $class,
		'dismissible'	=> defined( 'CF7BS_ALERT_DISMISSIBLE' ) && CF7BS_ALERT_DISMISSIBLE,
	) );

return $alert->open( false ) . esc_html( $content ) . $alert->close( false );
}
add_filter( 'wpcf7_form_response_output', 'cf7bs_form_response_output', 10, 4 );

function cf7bs_validation_error( $output, $name, $form_obj ) {
	$alert = new CF7BS_Alert( array(
		'type'			=> 'warning',
		'class'			=> 'wpcf7-not-valid-tip',
		'dismissible'	=> defined( 'CF7BS_ALERT_DISMISSIBLE' ) && CF7BS_ALERT_DISMISSIBLE,
	) );
	$output = str_replace( '<span role="alert" class="wpcf7-not-valid-tip">', $alert->open( false ), $output );
	$output = str_replace( '</span>', $alert->close( false ), $output );
	return $output;
}
add_filter( 'wpcf7_validation_error', 'cf7bs_validation_error', 10, 3 );

function cf7bs_default_template( $template, $prop = 'form' ) {
	if ( 'form' == $prop ) {
		$template = cf7bs_default_form_template();
	}
	return $template;
}
add_filter( 'wpcf7_default_template', 'cf7bs_default_template', 10, 2 );

function cf7bs_default_form_template() {
	$template = '[text* your-name]' . __( 'Your Name', 'bootstrap-for-contact-form-7' ) . '[/text*]' . "\n"
		. '[email* your-email]' . __( 'Your Email', 'bootstrap-for-contact-form-7' ) . '[/email*]' . "\n"
		. '[text your-subject]' . __( 'Subject', 'bootstrap-for-contact-form-7' ) . '[/text]' . "\n"
		. '[textarea your-message]' . __( 'Your Message', 'bootstrap-for-contact-form-7' ) . '[/textarea]' . "\n"
		. '[submit "' . __( 'Send', 'bootstrap-for-contact-form-7' ) . '"]';

return $template;
}

function cf7bs_array_decode( $values ) {
	if ( ! is_string( $values ) ) {
		return array();
	}
	$decoded = explode( '---', $values );
	return $decoded;
}

function cf7bs_editor_panel_additional_settings( $post ) {
	if ( ! function_exists( 'wpcf7_editor_panel_additional_settings' ) ) {
		return;
	}

ob_start();
	wpcf7_editor_panel_additional_settings( $post );
	$output = ob_get_clean();

$output = str_replace( 'http://contactform7.com/additional-settings/', __( 'https://wordpress.org/plugins/bootstrap-for-contact-form-7/other_notes/', 'bootstrap-for-contact-form-7' ), $output );

echo $output;
}

function cf7bs_editor_panels( $panels ) {
	if ( ! isset( $panels['additional-settings-panel'] ) ) {
		return $panels;
	}

$panels['additional-settings-panel']['callback'] = 'cf7bs_editor_panel_additional_settings';

return $panels;
}
add_filter( 'wpcf7_editor_panels', 'cf7bs_editor_panels' );

function cf7bs_adjust_rest_feedback_response( $response, $result ) {
	if ( 'validation_failed' == $result['status'] ) {
		$invalid_fields = array();

foreach ( (array) $result['invalid_fields'] as $name => $field ) {
			$invalid_fields[] = array(
				'into' => '.form-group.' . sanitize_html_class( $name ),
				'message' => $field['reason'],
				'idref' => $field['idref'],
			);
		}

$response['invalidFields'] = $invalid_fields;
	}

return $response;
}
add_filter( 'wpcf7_ajax_json_echo', 'cf7bs_adjust_rest_feedback_response', 10, 2 );

MR SKB