generalize dropdowns / drop role="menu"

as role="menu" is a very specific (and strict) ARIA pattern for
desktop-like application menus, and our dropdowns are often used
as pure navigation dropdowns, this change abandons ARIA menus for
a more open-ended and light-weight approach
(see http://heydonworks.com/practical_aria_examples/#submenus and
http://www.w3.org/WAI/tutorials/menus/flyout/#improve-screen-reader-support-using-wai-aria)
note that in dropdown.js, switched to now target ``.dropdown-menu``
instead of ``role["menu"]`` - this also prevents bootstrap scripts
from "bleeding" into non-bootstrap components on the same page.
also removed the ``role=["listbox"]`` part, which appears to be
vestigial/unused (only place in bootstrap that uses that
role are carousels, and their key handling is done separately)

1 files changed, 14 insertions, 14 deletions

diff --git a/docs/_includes/components/button-groups.html b/docs/_includes/components/button-groups.html
index 8a52e5e65..fc8d65269 100644
--- a/docs/_includes/components/button-groups.html
+++ b/docs/_includes/components/button-groups.html
@@ -102,11 +102,11 @@
       <button type="button" class="btn btn-default">2</button>
 
       <div class="btn-group" role="group">
-        <button id="btnGroupDrop1" type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
+        <button id="btnGroupDrop1" type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
           Dropdown
           <span class="caret"></span>
         </button>
-        <ul class="dropdown-menu" role="menu" aria-labelledby="btnGroupDrop1">
+        <ul class="dropdown-menu" aria-labelledby="btnGroupDrop1">
           <li><a href="#">Dropdown link</a></li>
           <li><a href="#">Dropdown link</a></li>
         </ul>
@@ -119,11 +119,11 @@
   <button type="button" class="btn btn-default">2</button>
 
   <div class="btn-group" role="group">
-    <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
+    <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
       Dropdown
       <span class="caret"></span>
     </button>
-    <ul class="dropdown-menu" role="menu">
+    <ul class="dropdown-menu">
       <li><a href="#">Dropdown link</a></li>
       <li><a href="#">Dropdown link</a></li>
     </ul>
@@ -138,11 +138,11 @@
       <button type="button" class="btn btn-default">Button</button>
       <button type="button" class="btn btn-default">Button</button>
       <div class="btn-group" role="group">
-        <button id="btnGroupVerticalDrop1" type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
+        <button id="btnGroupVerticalDrop1" type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
           Dropdown
           <span class="caret"></span>
         </button>
-        <ul class="dropdown-menu" role="menu" aria-labelledby="btnGroupVerticalDrop1">
+        <ul class="dropdown-menu" aria-labelledby="btnGroupVerticalDrop1">
           <li><a href="#">Dropdown link</a></li>
           <li><a href="#">Dropdown link</a></li>
         </ul>
@@ -150,31 +150,31 @@
       <button type="button" class="btn btn-default">Button</button>
       <button type="button" class="btn btn-default">Button</button>
       <div class="btn-group" role="group">
-        <button id="btnGroupVerticalDrop2" type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
+        <button id="btnGroupVerticalDrop2" type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
           Dropdown
           <span class="caret"></span>
         </button>
-        <ul class="dropdown-menu" role="menu" aria-labelledby="btnGroupVerticalDrop2">
+        <ul class="dropdown-menu" aria-labelledby="btnGroupVerticalDrop2">
           <li><a href="#">Dropdown link</a></li>
           <li><a href="#">Dropdown link</a></li>
         </ul>
       </div>
       <div class="btn-group" role="group">
-        <button id="btnGroupVerticalDrop3" type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
+        <button id="btnGroupVerticalDrop3" type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
           Dropdown
           <span class="caret"></span>
         </button>
-        <ul class="dropdown-menu" role="menu" aria-labelledby="btnGroupVerticalDrop3">
+        <ul class="dropdown-menu" aria-labelledby="btnGroupVerticalDrop3">
           <li><a href="#">Dropdown link</a></li>
           <li><a href="#">Dropdown link</a></li>
         </ul>
       </div>
       <div class="btn-group" role="group">
-        <button id="btnGroupVerticalDrop4" type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
+        <button id="btnGroupVerticalDrop4" type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
           Dropdown
           <span class="caret"></span>
         </button>
-        <ul class="dropdown-menu" role="menu" aria-labelledby="btnGroupVerticalDrop4">
+        <ul class="dropdown-menu" aria-labelledby="btnGroupVerticalDrop4">
           <li><a href="#">Dropdown link</a></li>
           <li><a href="#">Dropdown link</a></li>
         </ul>
@@ -213,10 +213,10 @@
       <a href="#" class="btn btn-default" role="button">Left</a>
       <a href="#" class="btn btn-default" role="button">Middle</a>
       <div class="btn-group" role="group">
-        <a href="#" class="btn btn-default dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">
+        <a href="#" class="btn btn-default dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
           Dropdown <span class="caret"></span>
         </a>
-        <ul class="dropdown-menu" role="menu">
+        <ul class="dropdown-menu">
           <li><a href="#">Action</a></li>
           <li><a href="#">Another action</a></li>
           <li><a href="#">Something else here</a></li>