IAccessible2 state not defined for input type checkbox.

content/browser/accessibility/accessibility_tree_formatter_utils_win.cc

 // 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.
 
 #include "content/browser/accessibility/accessibility_tree_formatter_utils_win.h"
 
 #include <oleacc.h>
 
 #include <map>
 #include <string>
@@ skipping 179 matching lines @@
   IA_STATE_MAP(SELECTABLE)
   IA_STATE_MAP(SELECTED)
   IA_STATE_MAP(SELFVOICING)
   IA_STATE_MAP(SIZEABLE)
   IA_STATE_MAP(TRAVERSED)
   IA_STATE_MAP(UNAVAILABLE)
 
   // IAccessible2 states.
   IA2_STATE_MAP(IA2_STATE_ACTIVE)
   IA2_STATE_MAP(IA2_STATE_ARMED)
+  IA2_STATE_MAP(IA2_STATE_CHECKABLE)

[shreeramk, 2014/09/26 18:42:16]

IA2_STATE_CHECKABLE was handled here but how to handle following IA2 states -
STATE_SYSTEM_CHECKED and STATE_SYSTEM_MIXED??

[dmazzoni, 2014/09/26 18:52:43]

Those are defined above:

IA_STATE_MAP(CHECKED)
IA_STATE_MAP(MIXED)

[shreeramk, 2014/09/26 19:14:43]

But according to specs STATE_SYSTEM_CHECKED and STATE_SYSTEM_MIXED has to be
defined for IA2_STATE.

[dmazzoni, 2014/09/29 05:44:06]

No, you're misunderstanding the spec.

IAccessible2 is an extension of MSAA/IAccessible. It doesn't replace it, it
extends it.

The spec has a column for what a MSAA+IAccessible2 browser should do. That's the
column we should follow for Chrome Windows support. Anything in that column
that's an IA2-only role or attribute, we return from IA2 functions (using:
ia2_role_ and ia2_state_). Anything that's a role or attribute from MSAA/IA, we
return from the MSAA/IA functions.

In this case, STATE_SYSTEM_CHECKED and STATE_SYSTEM_MIXED are already part of
MSAA/IA, so we set them in ia_state_ and nothing IA2-specific is needed.

   IA2_STATE_MAP(IA2_STATE_DEFUNCT)
   IA2_STATE_MAP(IA2_STATE_EDITABLE)
   IA2_STATE_MAP(IA2_STATE_ICONIFIED)
   IA2_STATE_MAP(IA2_STATE_INVALID_ENTRY)
   IA2_STATE_MAP(IA2_STATE_MANAGES_DESCENDANTS)
   IA2_STATE_MAP(IA2_STATE_MODAL)
   IA2_STATE_MAP(IA2_STATE_MULTI_LINE)
   IA2_STATE_MAP(IA2_STATE_REQUIRED)
   IA2_STATE_MAP(IA2_STATE_SELECTABLE_TEXT)
   IA2_STATE_MAP(IA2_STATE_SINGLE_LINE)
@@ skipping 46 matching lines @@
   }
 }
 
 base::string16 IAccessible2StateToString(int32 ia2_state) {
   std::vector<base::string16> strings;
   IAccessible2StateToStringVector(ia2_state, &strings);
   return JoinString(strings, ',');
 }
 
 }  // namespace content