class-theme-switcher.php

class-theme-switch.php

<?php
/**
 * Theme Switcher.
 *
 * @package   DBA_Components
 * @author    Julien Liabeuf <web@n2clic.com>
 * @license   GPL-2.0+
 * @link      http://n2clic.com
 * @copyright 2014 N2Clic
 */
class Theme_Switch {

	public function __construct() {

		$this->alternate = apply_filters( 'dba_theme_alternate', 'dba-mobile' );

		// Make sure the Mobile_Detect class is loaded
		if( !class_exists( 'Mobile_Detect' ) )
			return;

		// Instantiate Mobile_Detect
		$detect = new Mobile_Detect();

		// Check if current device is a mobile
		if( $detect->isMobile() ) {

			// We don't change for tablets
			if( $detect->isTablet() )
				return;

			// Dynamically change theme
			add_filter( 'template', array( $this, 'change_template' ) );
			add_filter( 'stylesheet', array( $this, 'change_stylesheet' ) );

		}

	}

	/**
	 * Change the template.
	 * 
	 * @param  string $template Current template
	 * @return string           New template
	 */
	public function change_template( $template ) {

		$theme = wp_get_theme( $this->alternate );
		$alt   = $theme->exists() ? $theme->template : $template;

		return $alt;

	}

	/**
	 * Change the stylesheet.
	 * 
	 * @param  string $stylesheet Current stylesheet
	 * @return string             New stylesheet
	 */
	public function change_stylesheet( $stylesheet ) {

		$theme = wp_get_theme( $this->alternate );
		$alt   = $theme->exists() ? $theme->stylesheet : $stylesheet;

		return $alt;

	}

}

$dba_switch = new Theme_Switch();