Implement put_accvalue for textfields and location bar.

ui/views/accessibility/native_view_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 "ui/views/accessibility/native_view_accessibility_win.h"
 
 #include <UIAutomationClient.h>
 #include <oleacc.h>
 
 #include <set>
@@ skipping 564 matching lines @@
   // Retrieve all currently applicable states of the parent.
   SetState(state, view_);
 
   // Make sure that state is not empty, and has the proper type.
   if (state->vt == VT_EMPTY)
     return E_FAIL;
 
   return S_OK;
 }
 
-STDMETHODIMP NativeViewAccessibilityWin::get_accValue(
-    VARIANT var_id, BSTR* value) {
+STDMETHODIMP NativeViewAccessibilityWin::get_accValue(VARIANT var_id,
+                                                      BSTR* value) {
   if (!IsValidId(var_id) || !value)
     return E_INVALIDARG;
 
   if (!view_)
     return E_FAIL;
 
   // Retrieve the current view's value.
   ui::AccessibleViewState state;
   view_->GetAccessibleState(&state);
   string16 temp_value = state.value;
 
   if (!temp_value.empty()) {
     // Return value retrieved.
     *value = SysAllocString(temp_value.c_str());
   } else {
     // If view has no value, fall back into the default implementation.
     *value = NULL;
     return E_NOTIMPL;
   }
 
   return S_OK;
 }
 
+STDMETHODIMP NativeViewAccessibilityWin::put_accValue(VARIANT var_id,
+                                                      BSTR new_value) {
+  if (!IsValidId(var_id) || !new_value)
+    return E_INVALIDARG;
+
+  if (!view_)
+    return E_FAIL;
+
+  // Return an error if the view can't set the value.
+  ui::AccessibleViewState state;
+  view_->GetAccessibleState(&state);
+  if (state.set_value_callback.is_null())
+    return E_FAIL;
+
+  state.set_value_callback.Run(new_value);
+  return S_OK;
+}
+
 // IAccessible functions not supported.
 
 STDMETHODIMP NativeViewAccessibilityWin::get_accSelection(VARIANT* selected) {
   if (selected)
     selected->vt = VT_EMPTY;
   return E_NOTIMPL;
 }
 
 STDMETHODIMP NativeViewAccessibilityWin::accSelect(
     LONG flagsSelect, VARIANT var_id) {
@@ skipping 17 matching lines @@
   }
   return E_NOTIMPL;
 }
 
 STDMETHODIMP NativeViewAccessibilityWin::put_accName(
     VARIANT var_id, BSTR put_name) {
   // Deprecated.
   return E_NOTIMPL;
 }
 
-STDMETHODIMP NativeViewAccessibilityWin::put_accValue(
-    VARIANT var_id, BSTR put_val) {
-  // Deprecated.
-  return E_NOTIMPL;
-}
-
 //
 // IAccessible2
 //
 
 STDMETHODIMP NativeViewAccessibilityWin::role(LONG* role) {
   if (!view_)
     return E_FAIL;
 
   if (!role)
     return E_INVALIDARG;
@@ skipping 563 matching lines @@
     LONG start_offset,
     ui::TextBoundaryDirection direction) {
   HandleSpecialTextOffset(text, &start_offset);
   ui::TextBoundaryType boundary = IA2TextBoundaryToTextBoundary(ia2_boundary);
   std::vector<int32> line_breaks;
   return ui::FindAccessibleTextBoundary(
       text, line_breaks, boundary, start_offset, direction);
 }
 
 }  // namespace views