admin-bar-hide.php

<?php
/*
Plugin Name: Admin Bar Hide
Plugin URI: http://shaikat.me
Description: Hide admin toolbar for all other users. Only admin can have that toolbar.
Version: 0.1.0.1
Author: Sk Shaikat
Author URI: https://www.facebook.com/skshaikat18
License: GPL2
*/

/**
 * Copyright (c) YEAR Sk Shaikat (email: sk.shaikat18@gmail.com). All rights reserved.
 *
 * Released under the GPL license
 * http://www.opensource.org/licenses/gpl-license.php
 *
 * This is an add-on for WordPress
 * http://wordpress.org/
 *
 * **********************************************************************
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 * **********************************************************************
 */

// don't call the file directly
if ( !defined( 'ABSPATH' ) ) exit;

/**
 * Admin_Bar_Hide class
 *
 * @class Admin_Bar_Hide The class that holds the entire Admin_Bar_Hide plugin
 */
class Admin_Bar_Hide {

    /**
     * Constructor for the Admin_Bar_Hide class
     *
     * Sets up all the appropriate hooks and actions
     * within our plugin.
     *
     * @uses register_activation_hook()
     * @uses register_deactivation_hook()
     * @uses is_admin()
     * @uses add_action()
     */
    public function __construct() {
        register_activation_hook( __FILE__, array( $this, 'activate' ) );
        register_deactivation_hook( __FILE__, array( $this, 'deactivate' ) );

        // Localize our plugin
        add_action( 'init', array( $this, 'localization_setup' ) );

        // Loads frontend scripts and styles
        add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );


        add_action('after_setup_theme', array( $this, 'remove_admin_bar' ) );

    }

    /**
     * Initializes the Admin_Bar_Hide() class
     *
     * Checks for an existing Admin_Bar_Hide() instance
     * and if it doesn't find one, creates it.
     */
    public static function init() {
        static $instance = false;

        if ( ! $instance ) {
            $instance = new Admin_Bar_Hide();
        }

        return $instance;
    }

    /**
     * Placeholder for activation function
     *
     * Nothing being called here yet.
     */
    public function activate() {

    }

    /**
     * Placeholder for deactivation function
     *
     * Nothing being called here yet.
     */
    public function deactivate() {

    }

    /**
     * Initialize plugin for localization
     *
     * @uses load_plugin_textdomain()
     */
    public function localization_setup() {
        load_plugin_textdomain( 'abh', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
    }

    /**
     * Enqueue admin scripts
     *
     * Allows plugin assets to be loaded.
     *
     * @uses wp_enqueue_script()
     * @uses wp_localize_script()
     * @uses wp_enqueue_style
     */
    public function enqueue_scripts() {

        /**
         * All styles goes here
         */
        wp_enqueue_style( 'abh-styles', plugins_url( 'assets/css/style.css', __FILE__ ), false, date( 'Ymd' ) );

        /**
         * All scripts goes here
         */
        wp_enqueue_script( 'abh-scripts', plugins_url( 'assets/js/script.js', __FILE__ ), array( 'jquery' ), false, true );


        /**
         * Example for setting up text strings from Javascript files for localization
         *
         * Uncomment line below and replace with proper localization variables.
         */
        // $translation_array = array( 'some_string' => __( 'Some string to translate', 'abh' ), 'a_value' => '10' );
        // wp_localize_script( 'abh-scripts', 'abh', $translation_array ) );

    }

    function remove_admin_bar() {
        if ( !current_user_can( 'administrator' ) && !is_admin() ) {
          show_admin_bar(false);
        }
    }

} // Admin_Bar_Hide

$admin_bar_hide = Admin_Bar_Hide::init();