<?php
/* Remove WordPress logo and menu from admin bar */
function wp_debranding_remove_wp_logo() {
    global $wp_admin_bar;
    $wp_admin_bar->remove_menu('wp-logo');
}
add_action( 'wp_before_admin_bar_render', 'wp_debranding_remove_wp_logo');
?>

<?php
/* Change WordPress login page logo image */
function wp_debranding_change_login_page_logo() {
    ?>
    <style type="text/css">
        .login h1 a{
            background-image: url('http://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Tux-G2.svg/200px-Tux-G2.svg.png');
            background-size: auto;
            margin: 0 auto;
 
            /* Set to your image dimensions */
            height: 219px;
            width: 200px;
        }
    </style>
    <?php
}
add_action('login_head', 'wp_debranding_change_login_page_logo');
?>

<?php
/* Change WordPress login page logo link href attribute */
function wp_debranding_change_login_page_url($login_header_url) {
    return get_bloginfo( 'url' );
}
add_filter( 'login_headerurl', 'wp_debranding_change_login_page_url' );
?>

<?php
/* Change WordPress login page logo link title attribute */
function wp_debranding_change_login_page_title($login_header_title) {
    return get_bloginfo('description');
}
add_filter( 'login_headertitle', 'wp_debranding_change_login_page_title' );
?>

<?php
/* Remove WordPress name from adming interface footer */
function change_admin_footer_text() {
    return '';
}
add_filter('admin_footer_text', 'change_admin_footer_text');
?>

<?php
/* Remove content generator meta tag from page source */
remove_action('wp_head', 'wp_generator');
?>

<?php
class WP_Debranding_Widget_Meta extends WP_Widget {
    function __construct() {
        $widget_ops = array('classname' => 'widget_meta', 'description' => __( "Log in/out, admin, feed and WordPress links") );
        parent::__construct('meta', __('Meta'), $widget_ops);
    }
 
    function widget( $args, $instance ) {
        extract($args);
        $title = apply_filters('widget_title', empty($instance['title']) ? __('Meta') : $instance['title'], $instance, $this->id_base);
 
        echo $before_widget;
        if ( $title )
            echo $before_title . $title . $after_title;
        ?>
            <ul>
            <?php wp_register(); ?>
            <li><?php wp_loginout(); ?></li>
            <li><a href="<?php bloginfo('rss2_url'); ?>" title="<?php echo esc_attr(__('Syndicate this site using RSS 2.0')); ?>"><?php _e('Entries <abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>
            <li><a href="<?php bloginfo('comments_rss2_url'); ?>" title="<?php echo esc_attr(__('The latest comments to all posts in RSS')); ?>"><?php _e('Comments <abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>
            <?php wp_meta(); ?>
            </ul>
        <?php
        echo $after_widget;
    }
 
    function update( $new_instance, $old_instance ) {
        $instance = $old_instance;
        $instance['title'] = strip_tags($new_instance['title']);
 
        return $instance;
    }
 
    function form( $instance ) {
        $instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );
        $title = strip_tags($instance['title']);
        ?>
            <p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label> <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($title); ?>" /></p>
        <?php
    }
}
 
/* Replace default Meta widget with custom widget without WordPress.org link */
function wp_debranding_load_widgets(){
    unregister_widget('WP_Widget_Meta');
    register_widget('WP_Debranding_Widget_Meta');
}
add_action('widgets_init', 'wp_debranding_load_widgets');
?>

<?php
/* Remove WordPress related admin dashboard widgets */
function wp_debranding_remove_dashboard_widgets(){
    remove_meta_box('dashboard_primary', 'dashboard', 'normal');   // wordpress blog
    remove_meta_box('dashboard_secondary', 'dashboard', 'normal');   // other wordpress news
    remove_meta_box('dashboard_plugins', 'dashboard', 'normal');   // plugins
}
add_action('admin_menu', 'wp_debranding_remove_dashboard_widgets');
?>

<?php
/* Hide help menus and .wp-pointers pop-up dialogs that inform about
 * new features after WordPress upgrade */
function wp_debranding_admin_css_hide(){
    ?>
    <style type="text/css">
        #contextual-help-link-wrap,
        .wp-pointer{
            display: none !important;
        }
    </style>
    <?php
 
}
add_action('admin_print_styles', 'wp_debranding_admin_css_hide');
?>