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/wp-includes/ -> admin-bar.php (source)

   1  <?php
   2  /**
   3   * Admin Bar
   4   *
   5   * This code handles the building and rendering of the press bar.
   6   */
   7  
   8  /**
   9   * Instantiate the admin bar object and set it up as a global for access elsewhere.
  10   *
  11   * To hide the admin bar, you're looking in the wrong place. Unhooking this function will not
  12   * properly remove the admin bar. For that, use show_admin_bar(false) or the show_admin_bar filter.
  13   *
  14   * @since 3.1.0
  15   * @access private
  16   * @return bool Whether the admin bar was successfully initialized.
  17   */
  18  function _wp_admin_bar_init() {
  19      global $wp_admin_bar;
  20  
  21      if ( ! is_admin_bar_showing() )
  22          return false;
  23  
  24      /* Load the admin bar class code ready for instantiation */
  25      require ( ABSPATH . WPINC . '/class-wp-admin-bar.php' );
  26  
  27      /* Instantiate the admin bar */
  28      $admin_bar_class = apply_filters( 'wp_admin_bar_class', 'WP_Admin_Bar' );
  29      if ( class_exists( $admin_bar_class ) )
  30          $wp_admin_bar = new $admin_bar_class;
  31      else
  32          return false;
  33  
  34      $wp_admin_bar->initialize();
  35      $wp_admin_bar->add_menus();
  36  
  37      return true;
  38  }
  39  add_action( 'init', '_wp_admin_bar_init' ); // Don't remove. Wrong way to disable.
  40  
  41  /**
  42   * Render the admin bar to the page based on the $wp_admin_bar->menu member var.
  43   * This is called very late on the footer actions so that it will render after anything else being
  44   * added to the footer.
  45   *
  46   * It includes the action "admin_bar_menu" which should be used to hook in and
  47   * add new menus to the admin bar. That way you can be sure that you are adding at most optimal point,
  48   * right before the admin bar is rendered. This also gives you access to the $post global, among others.
  49   *
  50   * @since 3.1.0
  51   */
  52  function wp_admin_bar_render() {
  53      global $wp_admin_bar;
  54  
  55      if ( ! is_admin_bar_showing() || ! is_object( $wp_admin_bar ) )
  56          return false;
  57  
  58      do_action_ref_array( 'admin_bar_menu', array( &$wp_admin_bar ) );
  59  
  60      do_action( 'wp_before_admin_bar_render' );
  61  
  62      $wp_admin_bar->render();
  63  
  64      do_action( 'wp_after_admin_bar_render' );
  65  }
  66  add_action( 'wp_footer', 'wp_admin_bar_render', 1000 );
  67  add_action( 'in_admin_header', 'wp_admin_bar_render', 0 );
  68  
  69  /**
  70   * Add the WordPress logo menu.
  71   *
  72   * @since 3.3.0
  73   */
  74  function wp_admin_bar_wp_menu( $wp_admin_bar ) {
  75      $wp_admin_bar->add_menu( array(
  76          'id'    => 'wp-logo',
  77          'title' => '<span class="ab-icon"></span>',
  78          'href'  => self_admin_url( 'about.php' ),
  79          'meta'  => array(
  80              'title' => __('About WordPress'),
  81          ),
  82      ) );
  83  
  84      if ( is_user_logged_in() ) {
  85          // Add "About WordPress" link
  86          $wp_admin_bar->add_menu( array(
  87              'parent' => 'wp-logo',
  88              'id'     => 'about',
  89              'title'  => __('About WordPress'),
  90              'href'  => self_admin_url( 'about.php' ),
  91          ) );
  92      }
  93  
  94      // Add WordPress.org link
  95      $wp_admin_bar->add_menu( array(
  96          'parent'    => 'wp-logo-external',
  97          'id'        => 'wporg',
  98          'title'     => __('WordPress.org'),
  99          'href'      => __('http://wordpress.org/'),
 100      ) );
 101  
 102      // Add codex link
 103      $wp_admin_bar->add_menu( array(
 104          'parent'    => 'wp-logo-external',
 105          'id'        => 'documentation',
 106          'title'     => __('Documentation'),
 107          'href'      => __('http://codex.wordpress.org/'),
 108      ) );
 109  
 110      // Add forums link
 111      $wp_admin_bar->add_menu( array(
 112          'parent'    => 'wp-logo-external',
 113          'id'        => 'support-forums',
 114          'title'     => __('Support Forums'),
 115          'href'      => __('http://wordpress.org/support/'),
 116      ) );
 117  
 118      // Add feedback link
 119      $wp_admin_bar->add_menu( array(
 120          'parent'    => 'wp-logo-external',
 121          'id'        => 'feedback',
 122          'title'     => __('Feedback'),
 123          'href'      => __('http://wordpress.org/support/forum/requests-and-feedback'),
 124      ) );
 125  }
 126  
 127  /**
 128   * Add the "My Account" item.
 129   *
 130   * @since 3.3.0
 131   */
 132  function wp_admin_bar_my_account_item( $wp_admin_bar ) {
 133      $user_id      = get_current_user_id();
 134      $current_user = wp_get_current_user();
 135      $profile_url  = get_edit_profile_url( $user_id );
 136  
 137      if ( ! $user_id )
 138          return;
 139  
 140      $avatar = get_avatar( $user_id, 16 );
 141      $howdy  = sprintf( __('Howdy, %1$s'), $current_user->display_name );
 142      $class  = empty( $avatar ) ? '' : 'with-avatar';
 143  
 144      $wp_admin_bar->add_menu( array(
 145          'id'        => 'my-account',
 146          'parent'    => 'top-secondary',
 147          'title'     => $howdy . $avatar,
 148          'href'      => $profile_url,
 149          'meta'      => array(
 150              'class'     => $class,
 151              'title'     => __('My Account'),
 152          ),
 153      ) );
 154  }
 155  
 156  /**
 157   * Add the "My Account" submenu items.
 158   *
 159   * @since 3.1.0
 160   */
 161  function wp_admin_bar_my_account_menu( $wp_admin_bar ) {
 162      $user_id      = get_current_user_id();
 163      $current_user = wp_get_current_user();
 164      $profile_url  = get_edit_profile_url( $user_id );
 165  
 166      if ( ! $user_id )
 167          return;
 168  
 169      $wp_admin_bar->add_group( array(
 170          'parent' => 'my-account',
 171          'id'     => 'user-actions',
 172      ) );
 173  
 174      $user_info  = get_avatar( $user_id, 64 );
 175      $user_info .= "<span class='display-name'>{$current_user->display_name}</span>";
 176  
 177      if ( $current_user->display_name !== $current_user->user_nicename )
 178          $user_info .= "<span class='username'>{$current_user->user_nicename}</span>";
 179  
 180      $wp_admin_bar->add_menu( array(
 181          'parent' => 'user-actions',
 182          'id'     => 'user-info',
 183          'title'  => $user_info,
 184          'href'   => $profile_url,
 185          'meta'   => array(
 186              'tabindex' => -1,
 187          ),
 188      ) );
 189      $wp_admin_bar->add_menu( array(
 190          'parent' => 'user-actions',
 191          'id'     => 'edit-profile',
 192          'title'  => __( 'Edit My Profile' ),
 193          'href' => $profile_url,
 194      ) );
 195      $wp_admin_bar->add_menu( array(
 196          'parent' => 'user-actions',
 197          'id'     => 'logout',
 198          'title'  => __( 'Log Out' ),
 199          'href'   => wp_logout_url(),
 200      ) );
 201  }
 202  
 203  /**
 204   * Add the "Site Name" menu.
 205   *
 206   * @since 3.3.0
 207   */
 208  function wp_admin_bar_site_menu( $wp_admin_bar ) {
 209      global $current_site;
 210  
 211      // Don't show for logged out users.
 212      if ( ! is_user_logged_in() )
 213          return;
 214  
 215      // Show only when the user is a member of this site, or they're a super admin.
 216      if ( ! is_user_member_of_blog() && ! is_super_admin() )
 217          return;
 218  
 219      $blogname = get_bloginfo('name');
 220  
 221      if ( empty( $blogname ) )
 222          $blogname = preg_replace( '#^(https?://)?(www.)?#', '', get_home_url() );
 223  
 224      if ( is_network_admin() ) {
 225          $blogname = sprintf( __('Network Admin: %s'), esc_html( $current_site->site_name ) );
 226      } elseif ( is_user_admin() ) {
 227          $blogname = sprintf( __('Global Dashboard: %s'), esc_html( $current_site->site_name ) );
 228      }
 229  
 230      $title = wp_html_excerpt( $blogname, 40 );
 231      if ( $title != $blogname )
 232          $title = trim( $title ) . '&hellip;';
 233  
 234      $wp_admin_bar->add_menu( array(
 235          'id'    => 'site-name',
 236          'title' => $title,
 237          'href'  => is_admin() ? home_url( '/' ) : admin_url(),
 238      ) );
 239  
 240      // Create submenu items.
 241  
 242      if ( is_admin() ) {
 243          // Add an option to visit the site.
 244          $wp_admin_bar->add_menu( array(
 245              'parent' => 'site-name',
 246              'id'     => 'view-site',
 247              'title'  => __( 'Visit Site' ),
 248              'href'   => home_url( '/' ),
 249          ) );
 250  
 251          if ( is_blog_admin() && is_multisite() && current_user_can( 'manage_sites' ) ) {
 252              $wp_admin_bar->add_menu( array(
 253                  'parent' => 'site-name',
 254                  'id'     => 'edit-site',
 255                  'title'  => __( 'Edit Site' ),
 256                  'href'   => network_admin_url( 'site-info.php?id=' . get_current_blog_id() ),
 257              ) );
 258          }
 259  
 260      } else {
 261          // We're on the front end, link to the Dashboard.
 262          $wp_admin_bar->add_menu( array(
 263              'parent' => 'site-name',
 264              'id'     => 'dashboard',
 265              'title'  => __( 'Dashboard' ),
 266              'href'   => admin_url(),
 267          ) );
 268  
 269          // Add the appearance submenu items.
 270          wp_admin_bar_appearance_menu( $wp_admin_bar );
 271      }
 272  }
 273  
 274  /**
 275   * Add the "My Sites/[Site Name]" menu and all submenus.
 276   *
 277   * @since 3.1.0
 278   */
 279  function wp_admin_bar_my_sites_menu( $wp_admin_bar ) {
 280      global $wpdb;
 281  
 282      // Don't show for logged out users or single site mode.
 283      if ( ! is_user_logged_in() || ! is_multisite() )
 284          return;
 285  
 286      // Show only when the user has at least one site, or they're a super admin.
 287      if ( count( $wp_admin_bar->user->blogs ) < 1 && ! is_super_admin() )
 288          return;
 289  
 290      $wp_admin_bar->add_menu( array(
 291          'id'    => 'my-sites',
 292          'title' => __( 'My Sites' ),
 293          'href'  => admin_url( 'my-sites.php' ),
 294      ) );
 295  
 296      if ( is_super_admin() ) {
 297          $wp_admin_bar->add_group( array(
 298              'parent' => 'my-sites',
 299              'id'     => 'my-sites-super-admin',
 300          ) );
 301  
 302          $wp_admin_bar->add_menu( array(
 303              'parent' => 'my-sites-super-admin',
 304              'id'     => 'network-admin',
 305              'title'  => __('Network Admin'),
 306              'href'   => network_admin_url(),
 307          ) );
 308  
 309          $wp_admin_bar->add_menu( array(
 310              'parent' => 'network-admin',
 311              'id'     => 'network-admin-d',
 312              'title'  => __( 'Dashboard' ),
 313              'href'   => network_admin_url(),
 314          ) );
 315          $wp_admin_bar->add_menu( array(
 316              'parent' => 'network-admin',
 317              'id'     => 'network-admin-s',
 318              'title'  => __( 'Sites' ),
 319              'href'   => network_admin_url( 'sites.php' ),
 320          ) );
 321          $wp_admin_bar->add_menu( array(
 322              'parent' => 'network-admin',
 323              'id'     => 'network-admin-u',
 324              'title'  => __( 'Users' ),
 325              'href'   => network_admin_url( 'users.php' ),
 326          ) );
 327          $wp_admin_bar->add_menu( array(
 328              'parent' => 'network-admin',
 329              'id'     => 'network-admin-v',
 330              'title'  => __( 'Visit Network' ),
 331              'href'   => network_home_url(),
 332          ) );
 333      }
 334  
 335      // Add site links
 336      $wp_admin_bar->add_group( array(
 337          'parent' => 'my-sites',
 338          'id'     => 'my-sites-list',
 339          'meta'   => array(
 340              'class' => is_super_admin() ? 'ab-sub-secondary' : '',
 341          ),
 342      ) );
 343  
 344      $blue_wp_logo_url = includes_url('images/wpmini-blue.png');
 345  
 346      foreach ( (array) $wp_admin_bar->user->blogs as $blog ) {
 347          // @todo Replace with some favicon lookup.
 348          //$blavatar = '<img src="' . esc_url( blavatar_url( blavatar_domain( $blog->siteurl ), 'img', 16, $blue_wp_logo_url ) ) . '" alt="Blavatar" width="16" height="16" />';
 349          $blavatar = '<img src="' . esc_url($blue_wp_logo_url) . '" alt="' . esc_attr__( 'Blavatar' ) . '" width="16" height="16" class="blavatar"/>';
 350  
 351          $blogname = empty( $blog->blogname ) ? $blog->domain : $blog->blogname;
 352          $menu_id  = 'blog-' . $blog->userblog_id;
 353  
 354          $wp_admin_bar->add_menu( array(
 355              'parent'    => 'my-sites-list',
 356              'id'        => $menu_id,
 357              'title'     => $blavatar . $blogname,
 358              'href'      => get_admin_url( $blog->userblog_id ),
 359          ) );
 360  
 361          $wp_admin_bar->add_menu( array(
 362              'parent' => $menu_id,
 363              'id'     => $menu_id . '-d',
 364              'title'  => __( 'Dashboard' ),
 365              'href'   => get_admin_url( $blog->userblog_id ),
 366          ) );
 367  
 368          if ( current_user_can_for_blog( $blog->userblog_id, 'edit_posts' ) ) {
 369              $wp_admin_bar->add_menu( array(
 370                  'parent' => $menu_id,
 371                  'id'     => $menu_id . '-n',
 372                  'title'  => __( 'New Post' ),
 373                  'href'   => get_admin_url( $blog->userblog_id, 'post-new.php' ),
 374              ) );
 375              $wp_admin_bar->add_menu( array(
 376                  'parent' => $menu_id,
 377                  'id'     => $menu_id . '-c',
 378                  'title'  => __( 'Manage Comments' ),
 379                  'href'   => get_admin_url( $blog->userblog_id, 'edit-comments.php' ),
 380              ) );
 381          }
 382  
 383          $wp_admin_bar->add_menu( array(
 384              'parent' => $menu_id,
 385              'id'     => $menu_id . '-v',
 386              'title'  => __( 'Visit Site' ),
 387              'href'   => get_home_url( $blog->userblog_id, '/' ),
 388          ) );
 389      }
 390  }
 391  
 392  /**
 393   * Provide a shortlink.
 394   *
 395   * @since 3.1.0
 396   */
 397  function wp_admin_bar_shortlink_menu( $wp_admin_bar ) {
 398      $short = wp_get_shortlink( 0, 'query' );
 399      $id = 'get-shortlink';
 400  
 401      if ( empty( $short ) )
 402          return;
 403  
 404      $html = '<input class="shortlink-input" type="text" readonly="readonly" value="' . esc_attr( $short ) . '" />';
 405  
 406      $wp_admin_bar->add_menu( array(
 407          'id' => $id,
 408          'title' => __( 'Shortlink' ),
 409          'href' => $short,
 410          'meta' => array( 'html' => $html ),
 411      ) );
 412  }
 413  
 414  /**
 415   * Provide an edit link for posts and terms.
 416   *
 417   * @since 3.1.0
 418   */
 419  function wp_admin_bar_edit_menu( $wp_admin_bar ) {
 420      global $post, $tag, $wp_the_query;
 421  
 422      if ( is_admin() ) {
 423          $current_screen = get_current_screen();
 424  
 425          if ( 'post' == $current_screen->base
 426              && 'add' != $current_screen->action
 427              && ( $post_type_object = get_post_type_object( $post->post_type ) )
 428              && current_user_can( $post_type_object->cap->read_post, $post->ID )
 429              && ( $post_type_object->public ) )
 430          {
 431              $wp_admin_bar->add_menu( array(
 432                  'id' => 'view',
 433                  'title' => $post_type_object->labels->view_item,
 434                  'href' => get_permalink( $post->ID )
 435              ) );
 436          } elseif ( 'edit-tags' == $current_screen->base
 437              && isset( $tag ) && is_object( $tag )
 438              && ( $tax = get_taxonomy( $tag->taxonomy ) )
 439              && $tax->public )
 440          {
 441              $wp_admin_bar->add_menu( array(
 442                  'id' => 'view',
 443                  'title' => $tax->labels->view_item,
 444                  'href' => get_term_link( $tag )
 445              ) );
 446          }
 447      } else {
 448          $current_object = $wp_the_query->get_queried_object();
 449  
 450          if ( empty( $current_object ) )
 451              return;
 452  
 453          if ( ! empty( $current_object->post_type )
 454              && ( $post_type_object = get_post_type_object( $current_object->post_type ) )
 455              && current_user_can( $post_type_object->cap->edit_post, $current_object->ID )
 456              && ( $post_type_object->show_ui || 'attachment' == $current_object->post_type ) )
 457          {
 458              $wp_admin_bar->add_menu( array(
 459                  'id' => 'edit',
 460                  'title' => $post_type_object->labels->edit_item,
 461                  'href' => get_edit_post_link( $current_object->ID )
 462              ) );
 463          } elseif ( ! empty( $current_object->taxonomy )
 464              && ( $tax = get_taxonomy( $current_object->taxonomy ) )
 465              && current_user_can( $tax->cap->edit_terms )
 466              && $tax->show_ui )
 467          {
 468              $wp_admin_bar->add_menu( array(
 469                  'id' => 'edit',
 470                  'title' => $tax->labels->edit_item,
 471                  'href' => get_edit_term_link( $current_object->term_id, $current_object->taxonomy )
 472              ) );
 473          }
 474      }
 475  }
 476  
 477  /**
 478   * Add "Add New" menu.
 479   *
 480   * @since 3.1.0
 481   */
 482  function wp_admin_bar_new_content_menu( $wp_admin_bar ) {
 483      $actions = array();
 484  
 485      $cpts = (array) get_post_types( array( 'show_in_admin_bar' => true ), 'objects' );
 486  
 487      if ( isset( $cpts['post'] ) && current_user_can( $cpts['post']->cap->edit_posts ) ) {
 488          $actions[ 'post-new.php' ] = array( $cpts['post']->labels->name_admin_bar, 'new-post' );
 489          unset( $cpts['post'] );
 490      }
 491  
 492      if ( current_user_can( 'upload_files' ) )
 493          $actions[ 'media-new.php' ] = array( _x( 'Media', 'add new from admin bar' ), 'new-media' );
 494  
 495      if ( current_user_can( 'manage_links' ) )
 496          $actions[ 'link-add.php' ] = array( _x( 'Link', 'add new from admin bar' ), 'new-link' );
 497  
 498      if ( isset( $cpts['page'] ) && current_user_can( $cpts['page']->cap->edit_posts ) ) {
 499          $actions[ 'post-new.php?post_type=page' ] = array( $cpts['page']->labels->name_admin_bar, 'new-page' );
 500          unset( $cpts['page'] );
 501      }
 502  
 503      // Add any additional custom post types.
 504      foreach ( $cpts as $cpt ) {
 505          if ( ! current_user_can( $cpt->cap->edit_posts ) )
 506              continue;
 507  
 508          $key = 'post-new.php?post_type=' . $cpt->name;
 509          $actions[ $key ] = array( $cpt->labels->name_admin_bar, 'new-' . $cpt->name );
 510      }
 511  
 512      if ( current_user_can( 'create_users' ) || current_user_can( 'promote_users' ) )
 513          $actions[ 'user-new.php' ] = array( _x( 'User', 'add new from admin bar' ), 'new-user' );
 514  
 515      if ( ! $actions )
 516          return;
 517  
 518      $title = '<span class="ab-icon"></span><span class="ab-label">' . _x( 'New', 'admin bar menu group label' ) . '</span>';
 519  
 520      $wp_admin_bar->add_menu( array(
 521          'id'    => 'new-content',
 522          'title' => $title,
 523          'href'  => admin_url( current( array_keys( $actions ) ) ),
 524          'meta'  => array(
 525              'title' => _x( 'Add New', 'admin bar menu group label' ),
 526          ),
 527      ) );
 528  
 529      foreach ( $actions as $link => $action ) {
 530          list( $title, $id ) = $action;
 531  
 532          $wp_admin_bar->add_menu( array(
 533              'parent'    => 'new-content',
 534              'id'        => $id,
 535              'title'     => $title,
 536              'href'      => admin_url( $link )
 537          ) );
 538      }
 539  }
 540  
 541  /**
 542   * Add edit comments link with awaiting moderation count bubble.
 543   *
 544   * @since 3.1.0
 545   */
 546  function wp_admin_bar_comments_menu( $wp_admin_bar ) {
 547      if ( !current_user_can('edit_posts') )
 548          return;
 549  
 550      $awaiting_mod = wp_count_comments();
 551      $awaiting_mod = $awaiting_mod->moderated;
 552      $awaiting_title = esc_attr( sprintf( _n( '%s comment awaiting moderation', '%s comments awaiting moderation', $awaiting_mod ), number_format_i18n( $awaiting_mod ) ) );
 553  
 554      $icon  = '<span class="ab-icon"></span>';
 555      $title = '<span id="ab-awaiting-mod" class="ab-label awaiting-mod pending-count count-' . $awaiting_mod . '">' . number_format_i18n( $awaiting_mod ) . '</span>';
 556  
 557      $wp_admin_bar->add_menu( array(
 558          'id'    => 'comments',
 559          'title' => $icon . $title,
 560          'href'  => admin_url('edit-comments.php'),
 561          'meta'  => array( 'title' => $awaiting_title ),
 562      ) );
 563  }
 564  
 565  /**
 566   * Add appearance submenu items to the "Site Name" menu.
 567   *
 568   * @since 3.1.0
 569   */
 570  function wp_admin_bar_appearance_menu( $wp_admin_bar ) {
 571      $wp_admin_bar->add_group( array( 'parent' => 'site-name', 'id' => 'appearance' ) );
 572  
 573      if ( current_user_can( 'switch_themes' ) || current_user_can( 'edit_theme_options' ) )
 574          $wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'themes', 'title' => __('Themes'), 'href' => admin_url('themes.php') ) );
 575  
 576      if ( ! current_user_can( 'edit_theme_options' ) )
 577          return;
 578  
 579      $wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'customize', 'title' => __('Customize'), 'href' => wp_customize_url(get_stylesheet()) ) );
 580  
 581      if ( current_theme_supports( 'widgets' )  )
 582          $wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'widgets', 'title' => __('Widgets'), 'href' => admin_url('widgets.php') ) );
 583  
 584       if ( current_theme_supports( 'menus' ) || current_theme_supports( 'widgets' ) )
 585          $wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'menus', 'title' => __('Menus'), 'href' => admin_url('nav-menus.php') ) );
 586  
 587      if ( current_theme_supports( 'custom-background' ) )
 588          $wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'background', 'title' => __('Background'), 'href' => admin_url('themes.php?page=custom-background') ) );
 589  
 590      if ( current_theme_supports( 'custom-header' ) )
 591          $wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'header', 'title' => __('Header'), 'href' => admin_url('themes.php?page=custom-header') ) );
 592  }
 593  
 594  /**
 595   * Provide an update link if theme/plugin/core updates are available.
 596   *
 597   * @since 3.1.0
 598   */
 599  function wp_admin_bar_updates_menu( $wp_admin_bar ) {
 600  
 601      $update_data = wp_get_update_data();
 602  
 603      if ( !$update_data['counts']['total'] )
 604          return;
 605  
 606      $title = '<span class="ab-icon"></span><span class="ab-label">' . number_format_i18n( $update_data['counts']['total'] ) . '</span>';
 607  
 608      $wp_admin_bar->add_menu( array(
 609          'id'    => 'updates',
 610          'title' => $title,
 611          'href'  => network_admin_url( 'update-core.php' ),
 612          'meta'  => array(
 613              'title' => $update_data['title'],
 614          ),
 615      ) );
 616  }
 617  
 618  /**
 619   * Add search form.
 620   *
 621   * @since 3.3.0
 622   */
 623  function wp_admin_bar_search_menu( $wp_admin_bar ) {
 624      if ( is_admin() )
 625          return;
 626  
 627      $form  = '<form action="' . esc_url( home_url( '/' ) ) . '" method="get" id="adminbarsearch">';
 628      $form .= '<input class="adminbar-input" name="s" id="adminbar-search" tabindex="10" type="text" value="" maxlength="150" />';
 629      $form .= '<input type="submit" class="adminbar-button" value="' . __('Search') . '"/>';
 630      $form .= '</form>';
 631  
 632      $wp_admin_bar->add_menu( array(
 633          'parent' => 'top-secondary',
 634          'id'     => 'search',
 635          'title'  => $form,
 636          'meta'   => array(
 637              'class'    => 'admin-bar-search',
 638              'tabindex' => -1,
 639          )
 640      ) );
 641  }
 642  
 643  /**
 644   * Add secondary menus.
 645   *
 646   * @since 3.3.0
 647   */
 648  function wp_admin_bar_add_secondary_groups( $wp_admin_bar ) {
 649      $wp_admin_bar->add_group( array(
 650          'id'     => 'top-secondary',
 651          'meta'   => array(
 652              'class' => 'ab-top-secondary',
 653          ),
 654      ) );
 655  
 656      $wp_admin_bar->add_group( array(
 657          'parent' => 'wp-logo',
 658          'id'     => 'wp-logo-external',
 659          'meta'   => array(
 660              'class' => 'ab-sub-secondary',
 661          ),
 662      ) );
 663  }
 664  
 665  /**
 666   * Style and scripts for the admin bar.
 667   *
 668   * @since 3.1.0
 669   *
 670   */
 671  function wp_admin_bar_header() { ?>
 672  <style type="text/css" media="print">#wpadminbar { display:none; }</style>
 673  <?php
 674  }
 675  
 676  /**
 677   * Default admin bar callback.
 678   *
 679   * @since 3.1.0
 680   *
 681   */
 682  function _admin_bar_bump_cb() { ?>
 683  <style type="text/css" media="screen">
 684      html { margin-top: 28px !important; }
 685      * html body { margin-top: 28px !important; }
 686  </style>
 687  <?php
 688  }
 689  
 690  /**
 691   * Set the display status of the admin bar.
 692   *
 693   * This can be called immediately upon plugin load. It does not need to be called from a function hooked to the init action.
 694   *
 695   * @since 3.1.0
 696   *
 697   * @param bool $show Whether to allow the admin bar to show.
 698   * @return void
 699   */
 700  function show_admin_bar( $show ) {
 701      global $show_admin_bar;
 702      $show_admin_bar = (bool) $show;
 703  }
 704  
 705  /**
 706   * Determine whether the admin bar should be showing.
 707   *
 708   * @since 3.1.0
 709   *
 710   * @return bool Whether the admin bar should be showing.
 711   */
 712  function is_admin_bar_showing() {
 713      global $show_admin_bar, $pagenow;
 714  
 715      // For all these types of requests, we never want an admin bar.
 716      if ( defined('XMLRPC_REQUEST') || defined('APP_REQUEST') || defined('DOING_AJAX') || defined('IFRAME_REQUEST') )
 717          return false;
 718  
 719      // Integrated into the admin.
 720      if ( is_admin() )
 721          return true;
 722  
 723      if ( ! isset( $show_admin_bar ) ) {
 724          if ( ! is_user_logged_in() || 'wp-login.php' == $pagenow ) {
 725              $show_admin_bar = false;
 726          } else {
 727              $show_admin_bar = _get_admin_bar_pref();
 728          }
 729      }
 730  
 731      $show_admin_bar = apply_filters( 'show_admin_bar', $show_admin_bar );
 732  
 733      return $show_admin_bar;
 734  }
 735  
 736  /**
 737   * Retrieve the admin bar display preference of a user.
 738   *
 739   * @since 3.1.0
 740   * @access private
 741   *
 742   * @param string $context Context of this preference check. Defaults to 'front'. The 'admin'
 743   *     preference is no longer used.
 744   * @param int $user Optional. ID of the user to check, defaults to 0 for current user.
 745   * @return bool Whether the admin bar should be showing for this user.
 746   */
 747  function _get_admin_bar_pref( $context = 'front', $user = 0 ) {
 748      $pref = get_user_option( "show_admin_bar_{$context}", $user );
 749      if ( false === $pref )
 750          return true;
 751  
 752      return 'true' === $pref;
 753  }


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