admin.php

<?php

add_action( 'admin_enqueue_scripts', 'wpcf7cf_admin_enqueue_scripts', 11 ); // set priority so scripts and styles get loaded later.

function wpcf7cf_admin_enqueue_scripts( $hook_suffix ) {

	wp_enqueue_script('cf7cf-scripts-admin-all-pages', wpcf7cf_plugin_url( 'js/scripts_admin_all_pages.js' ),array( 'jquery' ), WPCF7CF_VERSION,true);


	if ( isset($_GET['page']) && ( $_GET['page'] == 'wpcf7' && isset($_GET['post']) || $_GET['page'] == 'wpcf7-new' ) ) {
		//only load styles and scripts if this is a CF7 detail page.
		wpcf7cf_admin_enqueue_form_edit_scripts($hook_suffix);
	}

}

/* fix for std post editor used in Smart Grid */
add_action('cf7sg_enqueue_admin_editor_scripts', 'wpcf7cf_admin_enqueue_form_edit_scripts');

function wpcf7cf_admin_enqueue_form_edit_scripts($hook_suffix){
	wp_enqueue_script('cf7cf-scripts-admin', wpcf7cf_plugin_url( 'js/scripts_admin.js' ),array('jquery-ui-autocomplete', 'jquery-ui-sortable'), WPCF7CF_VERSION,true);
	wp_localize_script('cf7cf-scripts-admin', 'wpcf7cf_options_0', wpcf7cf_get_settings());
	//wp_localize_script('cf7cf-scripts-admin', 'wpcf7cf_newEntryHTML', );
}

add_filter('wpcf7_editor_panels', 'add_conditional_panel');

function add_conditional_panel($panels) {
	if ( current_user_can( 'wpcf7_edit_contact_forms' ) ) {
		$panels['wpcf7cf-conditional-panel'] = array(
			'title'    => __( 'Conditional fields', 'cf7-conditional-fields' ),
			'callback' => 'wpcf7cf_editor_panel_conditional'
		);
	}
	return $panels;
}

function wpcf7cf_all_field_options($post, $selected = '-1') {
	$all_fields = $post->scan_form_tags();
	?>
	<option value="-1" <?php echo $selected == '-1'?'selected':'' ?>><?php _e( '-- Select field --', 'cf7-conditional-fields' ); ?></option>
	<?php
	foreach ($all_fields as $tag) {
		if ($tag['type'] == 'group' || $tag['name'] == '') continue;
		?>
		<option value="<?php echo $tag['name']; ?>" <?php echo $selected == $tag['name']?'selected':'' ?>><?php echo $tag['name']; ?></option>
		<?php
	}
}

function wpcf7cf_all_group_options($post, $selected = '-1') {
	$all_groups = $post->scan_form_tags(array('type'=>'group'));

	?>
	<option value="-1" <?php echo $selected == '-1'?'selected':'' ?>><?php _e( '-- Select group --', 'cf7-conditional-fields' ); ?></option>
	<?php
	foreach ($all_groups as $tag) {
		?>
		<option value="<?php echo $tag['name']; ?>" <?php echo $selected == $tag['name']?'selected':'' ?>><?php echo $tag['name']; ?></option>
		<?php
	}
}

if (!function_exists('all_operator_options')) {
	function all_operator_options($selected = 'equals') {
		$all_options = array('equals', 'not equals');
		$all_options = apply_filters('wpcf7cf_get_operators', $all_options);
		foreach($all_options as $option) {
			// backwards compat
			$selected = $selected == '≤' ? 'less than or equals' : $selected;
			$selected = $selected == '≥' ? 'greater than or equals' : $selected;
			$selected = $selected == '>' ? 'greater than' : $selected;
			$selected = $selected == '<' ? 'less than' : $selected;

			?>
			<option value="<?php echo htmlentities($option) ?>" <?php echo $selected == $option?'selected':'' ?>><?php echo htmlentities($option) ?></option>
			<?php
		}
	}
}

function wpcf7cf_editor_panel_conditional($form) {

	$settings = wpcf7cf_get_settings();
	$is_text_only = $settings['conditions_ui'] === 'text_only';

	// print_r($settings);

	$form_id = isset($_GET['post']) ? $_GET['post'] : false;

	if ($form_id !== false) {
		$wpcf7cf_entries = CF7CF::getConditions($form_id);
		$wpcf7cf_entries = array_values($wpcf7cf_entries);
	} else {
		$wpcf7cf_entries = [];
	}

	?>
    <div class="wpcf7cf-inner-container">

		<label class="wpcf7cf-switch" id="wpcf7cf-text-only-switch">
			<span class="label"><?php _e( 'Text mode', 'cf7-conditional-fields' ); ?></span>
			<span class="switch">
				<input type="checkbox" id="wpcf7cf-text-only-checkbox" name="wpcf7cf-text-only-checkbox" value="text_only" <?php echo $is_text_only ? 'checked':''; ?>>
				<span class="slider round"></span>
			</span>
		</label>

		<h2><?php _e( 'Conditional fields', 'cf7-conditional-fields' ); ?></h2>

		<div id="wpcf7cf-entries-ui" style="display:none">
			<div id="wpcf7cf-entries">
			</div>
			
			<span id="wpcf7cf-add-button" title="<?php _e( 'add new rule', 'cf7-conditional-fields' ); ?>"><?php _e( '+ add new conditional rule', 'cf7-conditional-fields'); ?></span>

			<div id="wpcf7cf-a-lot-of-conditions" class="wpcf7cf-notice notice-warning" style="display:none;">
				<p>
					<strong><?php _e( 'Wow, That\'s a lot of conditions!', 'cf7-conditional-fields' ); ?></strong><br>
					<?php 
					// translators: 1. max recommended conditions
					echo sprintf( __( 'You can only add up to %d conditions using this interface.', 'cf7-conditional-fields' ), WPCF7CF_MAX_RECOMMENDED_CONDITIONS ) . ' ';
					// translators: 1,2: strong tags, 3. max recommended conditions
					printf( __( 'Please switch to %1$sText mode%2$s if you want to add more than %3$d conditions.', 'cf7-conditional-fields' ), '<a href="#" class="wpcf7cf-switch-to-txt-link">', '</a>', WPCF7CF_MAX_RECOMMENDED_CONDITIONS ); ?>
				</p>
			</div>

		</div>

        <div id="wpcf7cf-text-entries">
            <div id="wpcf7cf-settings-text-wrap">
                <textarea id="wpcf7cf-settings-text" name="wpcf7cf-settings-text"><?php echo CF7CF::serializeConditions($wpcf7cf_entries) ?></textarea>
                <br>
            </div>
        </div>
    </div>
<?php
}

// Save conditions and summary field
add_action( 'wpcf7_after_save', function($contact_form) {

	if ( ! isset( $_POST ) || empty( $_POST ) || ! isset( $_POST['wpcf7cf-settings-text'] ) ) {
		return;
	}
	$post_id = $contact_form->id();
	if ( ! $post_id ) {
		return;
	}

	// we intentionally don't use sanitize_textarea_field here,
	// because basically any character is a valid character.
	// To arm agains SQL injections and other funky junky, the CF7CF::parse_conditions function is used.
	$conditions_string = stripslashes($_POST['wpcf7cf-settings-text']);
	$conditions = CF7CF::parse_conditions($conditions_string);

	CF7CF::setConditions($post_id, $conditions);

	if (isset($_POST['wpcf7cf-summary-template'])) {
		WPCF7CF_Summary::saveSummaryTemplate($_POST['wpcf7cf-summary-template'],$post_id);
	}
	
}, 8, 1 );

// duplicate conditions on duplicate form part 1.
add_filter('wpcf7_copy','wpcf7cf_copy', 10, 2);
function wpcf7cf_copy($new_form,$current_form) {

	$id = $current_form->id();
	$props = $new_form->get_properties();
	$props['messages']['wpcf7cf_copied'] = $id;
	$new_form->set_properties($props);

	return $new_form;
}

// duplicate conditions on duplicate form part 2.
add_action('wpcf7_after_save','wpcf7cf_after_save',10,1);
function wpcf7cf_after_save($contact_form) {
	$props = $contact_form->get_properties();
	$original_id = isset($props['messages']['wpcf7cf_copied']) ? $props['messages']['wpcf7cf_copied'] : 0;
	if ($original_id !== 0) {
		$post_id = $contact_form->id();
		unset($props['messages']['wpcf7cf_copied']);
		$contact_form->set_properties($props);
		CF7CF::setConditions($post_id, CF7CF::getConditions($original_id));
		return;
	}
}

function wpcf7cf_sanitize_options($options) {
    //$options = array_values($options);
    $sanitized_options = [];
    foreach ($options as $option_entry) {
	    $sanitized_option = [];
	    $sanitized_option['then_field'] = sanitize_text_field($option_entry['then_field']);
	    foreach ($option_entry['and_rules'] as $and_rule) {
		    $sanitized_option['and_rules'][] = [
		            'if_field' => sanitize_text_field($and_rule['if_field']),
		            'operator' => $and_rule['operator'],
		            'if_value' => sanitize_text_field($and_rule['if_value']),
            ];
        }

	    $sanitized_options[] = $sanitized_option;
    }
    return $sanitized_options;
}

add_action('admin_notices', function () {

	$settings = wpcf7cf_get_settings();

	$nid = 'install-cf7';
	if ( !defined('WPCF7_VERSION') ) {
		if ( current_user_can('update_plugins') ) {
			?>
				<div class="wpcf7cf-admin-notice notice notice-warning" data-notice-id="<?php echo $nid ?>">
					<p>
						<strong>Conditional Fields for Contact Form 7</strong> depends on Contact Form 7. Please install <a target="_blank" href="https://downloads.wordpress.org/plugin/contact-form-7.<?php echo WPCF7CF_CF7_MAX_VERSION ?>.zip">Contact Form 7</a>.
					</p>
				</div>
			<?php
		}
		return;
	}

	$nid = 'rollback-cf7-'.WPCF7CF_CF7_MAX_VERSION;
	if ( version_compare( WPCF7CF_CF7_MAX_VERSION, WPCF7_VERSION, '<' ) && empty($settings['notice_dismissed_'.$nid]) && current_user_can('update_plugins') ) {
		?>
			<div class="wpcf7cf-admin-notice notice notice-warning is-dismissible" data-notice-id="<?php echo $nid ?>" data-nonce="<?php echo wpcf7cf_get_dismiss_notice_nonce() ?>">
				<p>
					<strong>Conditional Fields for Contact Form 7</strong> is not yet tested with your current version of Contact Form 7.
					<br>If you notice any problems with your forms, please roll back to Contact Form 7 <strong>version <?php echo WPCF7CF_CF7_MAX_VERSION ?></strong>.
					<br>For a quick and safe rollback, we recommend <a href="https://wordpress.org/plugins/wp-rollback/" target="_blank">WP Rollback</a>.
				</p>
			</div>
		<?php
	}

	$nid = 'update-cf7-'.WPCF7CF_CF7_MAX_VERSION;
	if ( version_compare( WPCF7CF_CF7_MAX_VERSION, WPCF7_VERSION, '>' ) && empty($settings['notice_dismissed_'.$nid]) && current_user_can('update_plugins') ) {
		?>
			<div class="wpcf7cf-admin-notice notice notice-warning is-dismissible" data-notice-id="<?php echo $nid ?>" data-nonce="<?php echo wpcf7cf_get_dismiss_notice_nonce() ?>">
				<p>
					<strong>Conditional Fields for Contact Form 7</strong> is fully compatible and tested with Contact Form 7 version <?php echo WPCF7CF_CF7_MAX_VERSION ?>.
					<br>Compatibility with other versions of CF7 is not guaranteed, so please install <a target="_blank" href="https://downloads.wordpress.org/plugin/contact-form-7.<?php echo WPCF7CF_CF7_MAX_VERSION ?>.zip">CF7 version <?php echo WPCF7CF_CF7_MAX_VERSION ?></a>
				</p>
			</div>
		<?php
	}

});