MacViews/a11y: Allow accessibility clients to update the selected text.

ui/views/accessibility/native_view_accessibility.cc

 // Copyright (c) 2013 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.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "ui/accessibility/ax_view_state.h"
 #include "ui/events/event_utils.h"
@@ skipping 206 matching lines @@
   return true;
 }
 
 bool NativeViewAccessibility::CanSetStringValue() {
   ui::AXViewState state;
   view_->GetAccessibleState(&state);
   return !ui::AXViewState::IsFlagSet(GetData().state, ui::AX_STATE_READ_ONLY) &&
          !state.set_value_callback.is_null();
 }
 
+bool NativeViewAccessibility::ReplaceSelectedText(
+    const base::string16& selection_replacement) {
+  if (!CanSetStringValue())
+    return false;
+
+  ui::AXViewState state;
+  view_->GetAccessibleState(&state);
+  state.replace_selection_callback.Run(selection_replacement);
+  return true;
+}

[tapted, 2016/09/27 07:16:30]

the `bool` arg would make it easier to share code with SetStringValue

[Patti Lor, 2016/10/20 04:19:34]

Done.

+
 void NativeViewAccessibility::OnWidgetDestroying(Widget* widget) {
   if (parent_widget_ == widget) {
     parent_widget_->RemoveObserver(this);
     parent_widget_ = nullptr;
   }
 }
 
 void NativeViewAccessibility::SetParentWidget(Widget* parent_widget) {
   if (parent_widget_)
     parent_widget_->RemoveObserver(this);
@@ skipping 30 matching lines @@
               child_widget_platform_node->GetDelegate());
       if (child_widget_view_accessibility->parent_widget() != widget)
         child_widget_view_accessibility->SetParentWidget(widget);
     }
 
     result_child_widgets->push_back(child_widget);
   }
 }
 
 }  // namespace views