自定義wordpress儀表盤

原網址:http://www.cnblogs.com/huangcong/p/3546636.html

WordPress作爲一博客管理系統，相對來說已經相當簡潔了，對用戶也十分友好，新手也極易上手。

儀表盤是我們登陸WordPress後看到的後臺界面，映入眼簾的是各種各樣的信息，如WordPress China博客消息，及其他關於WordPress的RSS信息，這些無用的東西空空的耗費着我們內存。通過定製WordPress的管理後臺，我們可以讓WordPress更加簡單實用，易於管理。簡化後臺界面，去除冗餘信息和代碼。

WordPress內置的hooks（包括filter和action）爲我們定製WordPress後臺提供了完美的解決方案。通過“勾入”而非修改WordPress的核心程序，可以在不影響安裝文件完整性的情況下安全地作改動。

下面介紹的代碼將全部在主題模板函數functions.php文件裏修改。

WordPress後臺定製

去除控制檯Widgets

---

//Remove dashboard widgets
function remove_dashboard_widgets(){
  global $wp_meta_boxes;
  unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins']);
  unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_comments']);
  unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']);
  unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links']);
  unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now']);
  unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']); 
}
add_action('wp_dashboard_setup', 'remove_dashboard_widgets');

增加控制檯Widget

---

//Add dashboard widgets
if ( ! function_exists( 'add_dashboard_widgets' ) ) :
function welcome_dashboard_widget_function() {
echo "<ul><li><a href='post-new.php'>發佈內容</a></li><li><a href='edit.php'>修改內容</a></li></ul>";
}
function add_dashboard_widgets() {
wp_add_dashboard_widget('welcome_dashboard_widget', '常規任務', 'welcome_dashboard_widget_function');
}
add_action('wp_dashboard_setup', 'add_dashboard_widgets' );
endif;

去除小工具Widgets

---

//Disable Standard Widgets
function remove_some_wp_widgets(){
  unregister_widget('WP_Widget_Pages');
  unregister_widget('WP_Widget_Calendar');
  unregister_widget('WP_Widget_Archives');
  unregister_widget('WP_Widget_Links');
  unregister_widget('WP_Widget_Meta');
  unregister_widget('WP_Widget_Search');
  unregister_widget('WP_Widget_Text');
  unregister_widget('WP_Widget_Categories');
  unregister_widget('WP_Widget_Recent_Posts');
  unregister_widget('WP_Widget_Recent_Comments');
  unregister_widget('WP_Widget_RSS');
  unregister_widget('WP_Widget_Tag_Cloud');
}
add_action('widgets_init',remove_some_wp_widgets', 1);

刪除頂級菜單

---

//remove menus
function remove_menus() {
    global $menu;
    $restricted = array(__('Dashboard'), __('Posts'), __('Media'), __('Links'), __('Pages'), __('Appearance'), __('Tools'), __('Users'), __('Settings'), __('Comments'), __('Plugins'));
    end ($menu);
    while (prev($menu)){
        $value = explode(' ',$menu[key($menu)][0]);
        if(in_array($value[0] != NULL?$value[0]:"" , $restricted)){unset($menu[key($menu)]);}
    }
}
if ( is_admin() ) {
    add_action('admin_menu', 'remove_menus');
}

刪除子菜單

---

//remove submenus
function remove_submenus() {
  global $submenu;
  unset($submenu['index.php'][10]); // Removes 'Updates'.
  unset($submenu['themes.php'][5]); // Removes 'Themes'.
  unset($submenu['options-general.php'][15]); // Removes 'Writing'.
  unset($submenu['options-general.php'][25]); // Removes 'Discussion'.
  unset($submenu['edit.php'][16]); // Removes 'Tags'. 
}
add_action('admin_menu', 'remove_submenus');

根據角色設定菜單可見性

---

//remove role menus
function remove_menus() {
    global $menu;
    // 這裏$restricted設置了評論和工具菜單
    $restricted = array(__('Comments'), __('Tools'));
    end ($menu);
    while (prev($menu)){
        $value = explode(' ',$menu[key($menu)][0]);
        if(in_array($value[0] != NULL?$value[0]:"" , $restricted)){unset($menu[key($menu)]);}
    }
}
function remove_submenu() {
    remove_submenu_page( 'options-general.php', 'options-privacy.php' );
}
global $current_user;
get_currentuserinfo();
//如果當前用戶的等級小於3，那麼就刪除對應的菜單
if ($current_user->user_level < 3 && is_admin()) {
    add_action('admin_menu', 'remove_menus');
    add_action('admin_init','remove_submenu');
}

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修改後臺LOGO圖標

---

//custom admin logo
function custom_logo() {
  echo '<style type="text/css">
    #header-logo { background-image: url('.get_bloginfo('template_directory').'/images/admin_logo.png) !important; }
    </style>';
}
add_action('admin_head', 'custom_logo');

修改登錄頁面LOGO

---

//custom login logo
function custom_login_logo() {
  echo '<style type="text/css">
    h1 a { background-image:url('.get_bloginfo('template_directory').'/images/login_logo.png) !important; }
    </style>';
}
add_action('login_head', 'custom_login_logo');

隱藏版本更新

---

//Hide the Upgrade Notice to Recent Versions
add_filter( 'pre_site_transient_update_core', create_function( '$a', "return null;" ) );

修改頁腳信息

---

//Customize the Footer
function modify_footer_admin () {
  echo 'Created by <a href="http://wiinder.com">wiinder</a>.';
  echo 'Powered by<a href="http://WordPress.org">WordPress</a>.';
}
add_filter('admin_footer_text', 'modify_footer_admin');

去除編輯頁面媒體上傳按鈕

---

//remove all media buttons
add_action('admin_init', 'remove_all_media_buttons');
function remove_all_media_buttons()
{
    remove_all_actions('media_buttons');
}

完整刪除WP版本號

---

//完整的刪除WordPress的版本號
function wpbeginner_remove_version() {
return '';
}
add_filter('the_generator', 'wpbeginner_remove_version');

隱藏幫助按鈕和版本更新

---

//隱藏管理後臺幫助按鈕和版本更新提示
function hide_help() {
	echo'<style type="text/css">#contextual-help-link-wrap { display: none !important; } .update-nag{ display: none !important; } #footer-left, #footer-upgrade{ display: none !important; }#wp-admin-bar-wp-logo{display: none !important;}.default-header img{width:400px;}</style>';
}
add_action('admin_head', 'hide_help');

去除header冗餘代碼

---

//去除header冗餘代碼
remove_action('wp_head', 'feed_links_extra', 3);
remove_action('wp_head', 'rsd_link');
remove_action('wp_head', 'wlwmanifest_link');
remove_action('wp_head', 'index_rel_link');
remove_action('wp_head', 'start_post_rel_link', 10, 0);
remove_action('wp_head', 'wp_generator');