Implement the inert attribute

third_party/WebKit/Source/modules/accessibility/AXMenuListPopup.cpp

 /*
  * Copyright (C) 2010 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 48 matching lines @@
   return AccessibilityIsIgnoredByDefault(ignored_reasons);
 }
 
 AXMenuListOption* AXMenuListPopup::MenuListOptionAXObject(
     HTMLElement* element) const {
   DCHECK(element);
   if (!isHTMLOptionElement(*element))
     return 0;
 
   AXObject* object = AxObjectCache().GetOrCreate(element);
-  if (!object || !object->IsMenuListOption())
+  LOG(INFO) << "Created " << object;
+  if (!object || !object->IsMenuListOption()) {
+    LOG(INFO) << "!object || !object->IsMenuListOption(): " << object;
     return 0;
+  }
 
+  LOG(INFO) << "Returning object " << object;
   return ToAXMenuListOption(object);
 }
 
 int AXMenuListPopup::GetSelectedIndex() const {
   if (!parent_)
     return -1;
 
   Node* parent_node = parent_->GetNode();
   if (!isHTMLSelectElement(parent_node))
     return -1;
@@ skipping 19 matching lines @@
   if (!isHTMLSelectElement(parent_node))
     return;
 
   HTMLSelectElement* html_select_element = toHTMLSelectElement(parent_node);
   have_children_ = true;
 
   if (active_index_ == -1)
     active_index_ = GetSelectedIndex();
 
   for (const auto& option_element : html_select_element->GetOptionList()) {
+    LOG(INFO) << "Getting option for element";
     AXMenuListOption* option = MenuListOptionAXObject(option_element);
+    LOG(INFO) << "Got option: " << option;
     if (option) {
+      LOG(INFO) << "Setting parent on option " << option;
       option->SetParent(this);
       children_.push_back(option);
+    } else {
+      LOG(INFO) << "no option";
     }
   }
 }
 
 void AXMenuListPopup::UpdateChildrenIfNecessary() {
+  LOG(INFO) << "AXMenuListPopup::UpdateChildrenIfNecessary";
+  LOG(INFO) << "have_children_: " << have_children_ << "; parent_: " << parent_;
+  if (parent_)
+    LOG(INFO) << "parent_->NeedsToUpdateChildren(): "
+              << parent_->NeedsToUpdateChildren();
   if (have_children_ && parent_ && parent_->NeedsToUpdateChildren())
     ClearChildren();
 
   if (!have_children_)
     AddChildren();
 }
 
 void AXMenuListPopup::DidUpdateActiveOption(int option_index) {
   UpdateChildrenIfNecessary();
 
@@ skipping 38 matching lines @@
 }
 
 AXObject* AXMenuListPopup::ActiveDescendant() {
   if (active_index_ < 0 || active_index_ >= static_cast<int>(Children().size()))
     return nullptr;
 
   return children_[active_index_].Get();
 }
 
 }  // namespace blink