Native Android accessibility.

content/browser/accessibility/accessibility_tree_formatter.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/accessibility_tree_formatter.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
@@ skipping 45 matching lines @@
 
 void AccessibilityTreeFormatter::FormatAccessibilityTree(
     string16* contents) {
   scoped_ptr<DictionaryValue> dict = BuildAccessibilityTree();
   RecursiveFormatAccessibilityTree(*(dict.get()), contents);
 }
 
 void AccessibilityTreeFormatter::RecursiveBuildAccessibilityTree(
     const BrowserAccessibility& node, DictionaryValue* dict) {
   AddProperties(node, dict);
+
   ListValue* children = new ListValue;
   dict->Set(kChildrenDictAttr, children);
+  if (!IncludeChildren(node))
+    return;
+
   for (size_t i = 0; i < node.children().size(); ++i) {
     BrowserAccessibility* child_node = node.children()[i];
     DictionaryValue* child_dict = new DictionaryValue;
     children->Append(child_dict);
     RecursiveBuildAccessibilityTree(*child_node, child_dict);
   }
 }
 
 void AccessibilityTreeFormatter::RecursiveFormatAccessibilityTree(
     const DictionaryValue& dict, string16* contents, int depth) {
   string16 line = ToString(dict, string16(depth * kIndentSpaces, ' '));
   if (line.find(ASCIIToUTF16(kSkipString)) != string16::npos)
     return;
 
   *contents += line;
   const ListValue* children;
   dict.GetList(kChildrenDictAttr, &children);
   const DictionaryValue* child_dict;
   for (size_t i = 0; i < children->GetSize(); i++) {
     children->GetDictionary(i, &child_dict);
     RecursiveFormatAccessibilityTree(*child_dict, contents, depth + 1);
   }
 }
 
-#if (!defined(OS_WIN) && !defined(OS_MACOSX))
+#if !defined(OS_ANDROID)
+bool AccessibilityTreeFormatter::IncludeChildren(
+    const BrowserAccessibility& node) {
+  return true;
+}
+#endif
+
+#if (!defined(OS_WIN) && !defined(OS_MACOSX) && !defined(OS_ANDROID))
 void AccessibilityTreeFormatter::AddProperties(const BrowserAccessibility& node,
                                                DictionaryValue* dict) {
   dict->SetInteger("id", node.renderer_id());
 }
 
 string16 AccessibilityTreeFormatter::ToString(const DictionaryValue& node,
                                               const string16& indent) {
   int id_value;
   node.GetInteger("id", &id_value);
   return indent + base::IntToString16(id_value) +
@@ skipping 73 matching lines @@
   if (attr.empty())
     return;
   if (!MatchesFilters(attr, include_by_default))
     return;
   if (!line->empty())
     *line += ASCIIToUTF16(" ");
   *line += attr;
 }
 
 }  // namespace content