Textarea, Input elements do not expose READONLY state in acc layer.

content/browser/accessibility/browser_accessibility_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/browser_accessibility_win.h"
 
 #include <UIAutomationClient.h>
 #include <UIAutomationCoreApi.h>
 
 #include "base/strings/string_number_conversions.h"
@@ skipping 3348 matching lines @@
   if (!HasState(ui::AX_STATE_ENABLED))
     ia_state_ |= STATE_SYSTEM_UNAVAILABLE;
   if (HasState(ui::AX_STATE_VERTICAL)) {
     ia2_state_ |= IA2_STATE_VERTICAL;
   } else {
     ia2_state_ |= IA2_STATE_HORIZONTAL;
   }
   if (HasState(ui::AX_STATE_VISITED))
     ia_state_ |= STATE_SYSTEM_TRAVERSED;
 
-  // WebKit marks everything as readonly unless it's editable text, so if it's
-  // not readonly, mark it as editable now. The final computation of the
-  // READONLY state for MSAA is below, after the switch.
-  if (!HasState(ui::AX_STATE_READ_ONLY))
-    ia2_state_ |= IA2_STATE_EDITABLE;
+  if (HasState(ui::AX_STATE_READ_ONLY)
+      || GetBoolAttribute(ui::AX_ATTR_ARIA_READONLY))
+    ia_state_ = STATE_SYSTEM_READONLY;
 
   base::string16 invalid;
   if (GetHtmlAttribute("aria-invalid", &invalid))
     ia2_state_ |= IA2_STATE_INVALID_ENTRY;
 
   if (GetBoolAttribute(ui::AX_ATTR_BUTTON_MIXED))
     ia_state_ |= STATE_SYSTEM_MIXED;
 
   if (GetBoolAttribute(ui::AX_ATTR_CAN_SET_VALUE))
     ia2_state_ |= IA2_STATE_EDITABLE;
@@ skipping 114 matching lines @@
     case ui::AX_ROLE_DISCLOSURE_TRIANGLE:
       ia_role_ = ROLE_SYSTEM_PUSHBUTTON;
       break;
     case ui::AX_ROLE_DOCUMENT:
     case ui::AX_ROLE_ROOT_WEB_AREA:
     case ui::AX_ROLE_WEB_AREA:
       ia_role_ = ROLE_SYSTEM_DOCUMENT;
       ia_state_ |= STATE_SYSTEM_READONLY;
       ia_state_ |= STATE_SYSTEM_FOCUSABLE;
       break;
-    case ui::AX_ROLE_EDITABLE_TEXT:
-      ia_role_ = ROLE_SYSTEM_TEXT;
-      ia2_state_ |= IA2_STATE_SINGLE_LINE;
-      ia2_state_ |= IA2_STATE_EDITABLE;
-      break;
     case ui::AX_ROLE_FIGCAPTION:
       role_name_ = html_tag;
       ia2_role_ = IA2_ROLE_CAPTION;
       break;
     case ui::AX_ROLE_FIGURE:
       ia_role_ = ROLE_SYSTEM_GROUPING;
       break;
     case ui::AX_ROLE_FORM:
       role_name_ = L"form";
       ia2_role_ = IA2_ROLE_FORM;
       break;
     case ui::AX_ROLE_FOOTER:
       ia_role_ = ROLE_SYSTEM_GROUPING;
       ia2_role_ = IA2_ROLE_FOOTER;
       break;
     case ui::AX_ROLE_GRID:
       ia_role_ = ROLE_SYSTEM_TABLE;
-      ia_state_ |= STATE_SYSTEM_READONLY;
       break;
     case ui::AX_ROLE_GROUP: {
       base::string16 aria_role = GetString16Attribute(
           ui::AX_ATTR_ROLE);
       if (aria_role == L"group" || html_tag == L"fieldset") {
         ia_role_ = ROLE_SYSTEM_GROUPING;
       } else if (html_tag == L"li") {
         ia_role_ = ROLE_SYSTEM_LISTITEM;
         ia_state_ |= STATE_SYSTEM_READONLY;
       } else {
         if (html_tag.empty())
           role_name_ = L"div";
         else
           role_name_ = html_tag;
         ia2_role_ = IA2_ROLE_SECTION;
       }
       break;
     }
-    case ui::AX_ROLE_GROW_AREA:
-      ia_role_ = ROLE_SYSTEM_GRIP;
-      ia_state_ |= STATE_SYSTEM_READONLY;
-      break;
     case ui::AX_ROLE_HEADING:
       role_name_ = html_tag;
       ia2_role_ = IA2_ROLE_HEADING;
       break;
     case ui::AX_ROLE_IFRAME:
       ia_role_ = ROLE_SYSTEM_DOCUMENT;
       ia2_role_ = IA2_ROLE_INTERNAL_FRAME;
       ia_state_ = STATE_SYSTEM_READONLY;
       break;
     case ui::AX_ROLE_IMAGE:
@@ skipping 157 matching lines @@
       break;
     case ui::AX_ROLE_SLIDER:
       ia_role_ = ROLE_SYSTEM_SLIDER;
       break;
     case ui::AX_ROLE_SPIN_BUTTON:
       ia_role_ = ROLE_SYSTEM_SPINBUTTON;
       break;
     case ui::AX_ROLE_SPIN_BUTTON_PART:
       ia_role_ = ROLE_SYSTEM_PUSHBUTTON;
       break;
-    case ui::AX_ROLE_SPLIT_GROUP:
-      ia_role_ = ROLE_SYSTEM_CLIENT;
-      ia2_role_ = IA2_ROLE_SPLIT_PANE;
-      ia_state_ |= STATE_SYSTEM_READONLY;
-      break;
     case ui::AX_ROLE_ANNOTATION:
     case ui::AX_ROLE_LIST_MARKER:
     case ui::AX_ROLE_STATIC_TEXT:
       ia_role_ = ROLE_SYSTEM_STATICTEXT;
       break;
     case ui::AX_ROLE_STATUS:
       ia_role_ = ROLE_SYSTEM_STATUSBAR;
       ia_state_ |= STATE_SYSTEM_READONLY;
       break;
     case ui::AX_ROLE_SPLITTER:
@@ skipping 26 matching lines @@
     case ui::AX_ROLE_TAB_PANEL:
       ia_role_ = ROLE_SYSTEM_PROPERTYPAGE;
       break;
     case ui::AX_ROLE_TOGGLE_BUTTON:
       ia_role_ = ROLE_SYSTEM_PUSHBUTTON;
       ia2_role_ = IA2_ROLE_TOGGLE_BUTTON;
       break;
     case ui::AX_ROLE_TEXT_AREA:
       ia_role_ = ROLE_SYSTEM_TEXT;
       ia2_state_ |= IA2_STATE_MULTI_LINE;
-      ia2_state_ |= IA2_STATE_EDITABLE;
       ia2_state_ |= IA2_STATE_SELECTABLE_TEXT;
       break;
     case ui::AX_ROLE_TEXT_FIELD:
       ia_role_ = ROLE_SYSTEM_TEXT;
       ia2_state_ |= IA2_STATE_SINGLE_LINE;
-      ia2_state_ |= IA2_STATE_EDITABLE;
       ia2_state_ |= IA2_STATE_SELECTABLE_TEXT;
       break;
     case ui::AX_ROLE_TIME:
       ia_role_ = ROLE_SYSTEM_SPINBUTTON;
       break;
     case ui::AX_ROLE_TIMER:
       ia_role_ = ROLE_SYSTEM_CLOCK;
       ia_state_ |= STATE_SYSTEM_READONLY;
       break;
     case ui::AX_ROLE_TOOLBAR:
@@ skipping 30 matching lines @@
     case ui::AX_ROLE_RULER_MARKER:
     case ui::AX_ROLE_SHEET:
     case ui::AX_ROLE_SLIDER_THUMB:
     case ui::AX_ROLE_SYSTEM_WIDE:
     case ui::AX_ROLE_VALUE_INDICATOR:
     default:
       ia_role_ = ROLE_SYSTEM_CLIENT;
       break;
   }
 
-  // Compute the final value of READONLY for MSAA.
-  //
-  // We always set the READONLY state for elements that have the
-  // aria-readonly attribute and for a few roles (in the switch above).
-  // We clear the READONLY state on focusable controls and on a document.
-  // Everything else, the majority of objects, do not have this state set.
-  if (HasState(ui::AX_STATE_FOCUSABLE) &&
-      ia_role_ != ROLE_SYSTEM_DOCUMENT) {
-    ia_state_ &= ~(STATE_SYSTEM_READONLY);
-  }
-  if (!HasState(ui::AX_STATE_READ_ONLY))
-    ia_state_ &= ~(STATE_SYSTEM_READONLY);
-  if (GetBoolAttribute(ui::AX_ATTR_ARIA_READONLY))
-    ia_state_ |= STATE_SYSTEM_READONLY;
-
   // The role should always be set.
   DCHECK(!role_name_.empty() || ia_role_);
 
   // If we didn't explicitly set the IAccessible2 role, make it the same
   // as the MSAA role.
   if (!ia2_role_)
     ia2_role_ = ia_role_;
 }
 
 }  // namespace content