Anti-shelf-overlapping fixes for several menus.

chrome/browser/resources/chromeos/login/oobe.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview Out of the box experience flow (OOBE).
  * This is the main code for the OOBE WebUI implementation.
  */
 
 <include src="login_common.js">
@@ skipping 128 matching lines @@
 
     /**
      * Accessibility link handler.
      */
     handleAccessibilityLinkClick: function(e) {
       /** @const */ var BUBBLE_OFFSET = 5;
       /** @const */ var BUBBLE_PADDING = 10;
       $('accessibility-menu').showForElement(e.target,
                                              cr.ui.Bubble.Attachment.BOTTOM,
                                              BUBBLE_OFFSET, BUBBLE_PADDING);
+
+      var maxHeight = cr.ui.LoginUITools.getMaxHeightBeforeShelfOverlapping(
+          $('accessibility-menu'));
+      if (maxHeight < $('accessibility-menu').offsetHeight) {
+        $('accessibility-menu').showForElement(e.target,
+                                               cr.ui.Bubble.Attachment.TOP,
+                                               BUBBLE_OFFSET, BUBBLE_PADDING);
+      }
+
       $('accessibility-menu').firstBubbleElement = $('spoken-feedback');
       $('accessibility-menu').lastBubbleElement = $('close-accessibility-menu');
       if (Oobe.getInstance().currentScreen &&
           Oobe.getInstance().currentScreen.defaultControl) {
         $('accessibility-menu').elementToFocusOnHide =
           Oobe.getInstance().currentScreen.defaultControl;
       } else {
         // Update screen falls into this category. Since it doesn't have any
         // controls other than a11y link we don't want that link to receive
         // focus when screen is shown i.e. defaultControl is not defined.
@@ skipping 114 matching lines @@
     /**
      * Updates localized content of the screens.
      * Should be executed on language change.
      */
     updateLocalizedContent: function() {
       // Buttons, headers and links.
       Oobe.getInstance().updateLocalizedContent_();
     }
   };
 });