Remove dependency of WebNode.cpp on AXObjectImpl

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

 /*
  * Copyright (C) 2008, 2009, 2011 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
@@ skipping 40 matching lines @@
 #include "platform/wtf/text/WTFString.h"
 
 using blink::WebLocalizedString;
 
 namespace blink {
 
 using namespace HTMLNames;
 
 namespace {
 typedef HashMap<String, AccessibilityRole, CaseFoldingHash> ARIARoleMap;
-typedef HashSet<String, CaseFoldingHash> ARIAWidgetSet;
 
 struct RoleEntry {
   const char* aria_role;
   AccessibilityRole webcore_role;
 };
 
 const RoleEntry kRoles[] = {{"alert", kAlertRole},
                             {"alertdialog", kAlertDialogRole},
                             {"application", kApplicationRole},
                             {"article", kArticleRole},
@@ skipping 236 matching lines @@
   Vector<AtomicString>* internal_role_name_vector =
       new Vector<AtomicString>(kNumRoles);
   for (size_t i = 0; i < WTF_ARRAY_LENGTH(kInternalRoles); i++) {
     (*internal_role_name_vector)[kInternalRoles[i].webcore_role] =
         AtomicString(kInternalRoles[i].internal_role_name);
   }
 
   return internal_role_name_vector;
 }
 
-const char* g_aria_widgets[] = {
-    // From http://www.w3.org/TR/wai-aria/roles#widget_roles
-    "alert", "alertdialog", "button", "checkbox", "dialog", "gridcell", "link",
-    "log", "marquee", "menuitem", "menuitemcheckbox", "menuitemradio", "option",
-    "progressbar", "radio", "scrollbar", "slider", "spinbutton", "status",
-    "tab", "tabpanel", "textbox", "timer", "tooltip", "treeitem",
-    // Composite user interface widgets.
-    // This list is also from the w3.org site referenced above.
-    "combobox", "grid", "listbox", "menu", "menubar", "radiogroup", "tablist",
-    "tree", "treegrid"};
-
-static ARIAWidgetSet* CreateARIARoleWidgetSet() {
-  ARIAWidgetSet* widget_set = new HashSet<String, CaseFoldingHash>();
-  for (size_t i = 0; i < WTF_ARRAY_LENGTH(g_aria_widgets); ++i)
-    widget_set->insert(String(g_aria_widgets[i]));
-  return widget_set;
-}
-
-const char* g_aria_interactive_widget_attributes[] = {
-    // These attributes implicitly indicate the given widget is interactive.
-    // From http://www.w3.org/TR/wai-aria/states_and_properties#attrs_widgets
-    "aria-activedescendant", "aria-checked",  "aria-controls",
-    "aria-disabled",  // If it's disabled, it can be made interactive.
-    "aria-expanded",         "aria-haspopup", "aria-multiselectable",
-    "aria-pressed",          "aria-required", "aria-selected"};
-
 HTMLDialogElement* GetActiveDialogElement(Node* node) {
   return node->GetDocument().ActiveModalDialog();
 }
 
 }  // namespace
 
 unsigned AXObjectImpl::number_of_live_ax_objects_ = 0;
 
 AXObjectImpl::AXObjectImpl(AXObjectCacheImpl& ax_object_cache)
     : id_(0),
@@ skipping 1400 matching lines @@
   AccessibilityRole role = kUnknownRole;
   for (const auto& child : role_vector) {
     role = role_map->at(child);
     if (role)
       return role;
   }
 
   return role;
 }
 
-bool AXObjectImpl::IsInsideFocusableElementOrARIAWidget(const Node& node) {
-  const Node* cur_node = &node;
-  do {
-    if (cur_node->IsElementNode()) {
-      const Element* element = ToElement(cur_node);
-      if (element->IsFocusable())
-        return true;
-      String role = element->getAttribute("role");
-      if (!role.IsEmpty() && AXObjectImpl::IncludesARIAWidgetRole(role))
-        return true;
-      if (HasInteractiveARIAAttribute(*element))
-        return true;
-    }
-    cur_node = cur_node->parentNode();
-  } while (cur_node && !isHTMLBodyElement(node));
-  return false;
-}
-
-bool AXObjectImpl::HasInteractiveARIAAttribute(const Element& element) {
-  for (size_t i = 0; i < WTF_ARRAY_LENGTH(g_aria_interactive_widget_attributes);
-       ++i) {
-    const char* attribute = g_aria_interactive_widget_attributes[i];
-    if (element.hasAttribute(attribute)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-bool AXObjectImpl::IncludesARIAWidgetRole(const String& role) {
-  static const HashSet<String, CaseFoldingHash>* role_set =
-      CreateARIARoleWidgetSet();
-
-  Vector<String> role_vector;
-  role.Split(' ', role_vector);
-  for (const auto& child : role_vector) {
-    if (role_set->Contains(child))
-      return true;
-  }
-  return false;
-}
-
 bool AXObjectImpl::NameFromContents() const {
   // ARIA 1.1, section 5.2.7.5.
   switch (RoleValue()) {
     case kAnchorRole:
     case kButtonRole:
     case kCellRole:
     case kCheckBoxRole:
     case kColumnHeaderRole:
     case kDirectoryRole:
     case kDisclosureTriangleRole:
@@ skipping 59 matching lines @@
 }
 
 DEFINE_TRACE(AXObjectImpl) {
   visitor->Trace(children_);
   visitor->Trace(parent_);
   visitor->Trace(cached_live_region_root_);
   visitor->Trace(ax_object_cache_);
 }
 
 }  // namespace blink