ContactForm7

controller.php

<?php
/**
 * getting the Script and Style suffix
 * Adds a conditional ".min" suffix to the file name when SCRIPT_DEBUG is NOT set to TRUE.
 *
 * @return String $suffix
 */
function wpcf7_get_script_suffix(){

	return defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
}

function wpcf7_enqueue_scripts() {
	$in_footer = true;
	if ( 'header' === WPCF7_LOAD_JS )
		$in_footer = false;
		
	$script_suffix = wpcf7_get_script_suffix();
	wp_enqueue_script( 
		'contact-form-7', 
		wpcf7_plugin_url( 'contact-form-7' . $script_suffix . '.js' ),
		array('jquery', 'jquery-form'), 
		WPCF7_VERSION, 
		$in_footer 
	);
	
	wpcf7_register_plugin_scripts();
	
}

function wpcf7_enqueue_styles() {
	$script_suffix = wpcf7_get_script_suffix();
	
	wp_enqueue_style( 
		'contact-form-7', 
		wpcf7_plugin_url( 'stylesheet' . $script_suffix . '.css' ),
		array(), 
		WPCF7_VERSION, 
		'all' 
	);

	if ( 'rtl' == get_bloginfo( 'text_direction' ) ) {
		wp_enqueue_style( 
			'contact-form-7-rtl',
			wpcf7_plugin_url( 'stylesheet-rtl' . $script_suffix . '.css' ),
			array(), 
			WPCF7_VERSION, 
			'all' 
		);
	}
	
	wpcf7_register_plugin_styles();
}