' . __CLASS__ . ' is a singleton.
Please get an instantiate it with ' . __CLASS__ . '::get_instance();';
wp_die( $message );
}
}
/**
* Maybe instantiate, then return instance of this class.
* @return Styles_Plugin Controller instance.
*/
public static function get_instance() {
if ( !is_a( self::$instance, __CLASS__ ) ) {
self::$instance = true;
self::$instance = new self();
self::$instance->init();
}
return self::$instance;
}
/**
* Initial setup. Called by get_instance.
*/
protected function init() {
require_once dirname( __FILE__ ) . '/styles-helpers.php';
add_action( 'wp_head', array( $this, 'wp_head' ), 1000 );
add_filter( 'body_class', array( $this, 'body_class' ) );
add_action( 'plugins_loaded', array( $this, 'plugins_loaded' ), 15 );
add_action( 'admin_menu', array( $this, 'admin_menu' ), 1 );
add_action( 'customize_register', array( $this, 'customize_register' ), 1 );
add_action( 'customize_save_after', array( $this, 'customize_save_after' ) );
if ( ( defined('DOING_AJAX') && DOING_AJAX ) ) {
require_once dirname( __FILE__ ) . '/styles-admin-ajax.php';
$this->admin_ajax = new Styles_Admin_Ajax( $this );
}
if ( $this->get_option( 'debug_mode' ) ) {
require_once dirname( __FILE__ ) . '/styles-debug.php';
$this->debug = new Styles_Debug();
}
}
/**
* Set up detection for child plugins that follow common patterns
*/
public function plugins_loaded() {
if ( ( !is_a( $this->child, 'Styles_Child') && is_user_logged_in() )
|| apply_filters( 'styles_force_rebuild', false )
) {
// Only for logged-in users.
// Targeting theme preview and customize.php.
$this->increase_memory_limit();
require_once dirname( __FILE__ ) . '/styles-child.php';
require_once dirname( __FILE__ ) . '/styles-child-updatable.php';
require_once dirname( __FILE__ ) . '/styles-child-theme.php';
$this->child = new Styles_Child( $this );
}
}
/**
* Setup WP Admin user interface
*/
public function admin_menu() {
if ( !is_a( $this->admin, 'Styles_Admin') ) {
require_once dirname( __FILE__ ) . '/styles-admin.php';
require_once dirname( __FILE__ ) . '/styles-upgrade.php';
$this->admin = new Styles_Admin( $this );
$this->upgrade = new Styles_Upgrade();
add_action( 'admin_init', array( $this->upgrade, 'maybe_upgrade' ) );
}
}
/**
* Add settings to WP Customize
*/
public function customize_register( $wp_customize = null ) {
if ( !is_a( $this->customize, 'Styles_Customize') ) {
require_once dirname( __FILE__ ) . '/styles-control.php';
require_once dirname( __FILE__ ) . '/styles-customize.php';
$this->customize = new Styles_Customize( $this );
}
}
/**
* Rebuild CSS whenever customizer is re-saved
*/
function customize_save_after() {
$this->init_css();
$this->css->get_css();
}
public function init_css() {
if ( !is_a( $this->css, 'Styles_CSS') ) {
require_once dirname( __FILE__ ) . '/styles-control.php';
require_once dirname( __FILE__ ) . '/styles-css.php';
$this->css = new Styles_CSS( $this );
}
}
public function get_css() {
global $wp_customize;
$css = false;
if ( empty( $wp_customize ) ) {
$css = get_option( Styles_Helpers::get_option_key( 'css' ) );
}
if ( !empty( $wp_customize ) || empty( $css ) || apply_filters( 'styles_force_rebuild', false ) ) {
// Rebuild
$this->init_css();
return $this->css->get_css();
}else {
return $css;
}
}
/**
* Output ',
'',
));
}
/**
* Add Styles body_class to tag
*/
public function body_class( $classes ) {
$classes[] = $this->body_class;
return $classes;
}
public function get_option( $key = 'version' ) {
$options = get_option( 'storm-styles' );
if ( isset( $options[ $key ] ) ) {
return $options[ $key ];
}else {
return false;
}
}
public function set_option( $key, $value ) {
$options = get_option( 'storm-styles' );
$options[ $key ] = $value;
update_option( 'storm-styles', $options );
}
/**
* Load HTML template from templates directory.
* Contents of $args are turned into variables for use in the template.
*
* For example, $args = array( 'foo' => 'bar' );
* becomes variable $foo with value 'bar'
*/
public static function get_view( $file, $args = array() ) {
extract( $args );
$file = dirname( dirname( __FILE__ ) ) . "/views/$file.php";
if ( file_exists( $file ) ) {
require $file;
}
}
/**
* Increase memory limit; for logged-in users only.
* Not the same as increasing memory *usage*.
* Gives extra padding to customize.php and its preview.
*
* Based on pluginbuddy.php, a part of iTheme's BackupBuddy.
*
* @author Dustin Bolton
*/
public static function increase_memory_limit() {
// Increase the memory limit
$current_memory_limit = trim( @ini_get( 'memory_limit' ) );
// Make sure a minimum memory limit of 256MB is set.
if ( preg_match( '/(\d+)(\w*)/', $current_memory_limit, $matches ) ) {
$current_memory_limit = $matches[1];
$unit = $matches[2];
// Up memory limit if currently lower than 256M.
if ( 'g' !== strtolower( $unit ) ) {
if ( ( $current_memory_limit < 256 ) || ( 'm' !== strtolower( $unit ) ) )
@ini_set('memory_limit', '256M');
}
} else {
// Couldn't determine current limit, set to 256M to be safe.
@ini_set('memory_limit', '256M');
}
}
}