Reland r256396 Add views implementation for AXTreeSource.

ui/views/accessibility/ax_tree_source_views_unittest.cc

+// Copyright 2014 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 "base/memory/scoped_ptr.h"
+#include "base/strings/utf_string_conversions.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/accessibility/ax_enums.h"
+#include "ui/accessibility/ax_node.h"
+#include "ui/accessibility/ax_serializable_tree.h"
+#include "ui/accessibility/ax_tree_serializer.h"
+#include "ui/accessibility/ax_tree_update.h"
+#include "ui/views/accessibility/ax_tree_source_views.h"
+#include "ui/views/controls/textfield/textfield.h"
+#include "ui/views/test/views_test_base.h"
+#include "ui/views/widget/widget.h"
+
+namespace views {
+
+class AXTreeSourceViewsTest : public ViewsTestBase {
+ public:
+  AXTreeSourceViewsTest() {}
+  virtual ~AXTreeSourceViewsTest() {}
+
+  virtual void SetUp() OVERRIDE {
+    ViewsTestBase::SetUp();
+    widget_.reset(new Widget());
+    Widget::InitParams init_params =
+        CreateParams(Widget::InitParams::TYPE_POPUP);
+    init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
+    widget_->Init(init_params);
+
+    content_.reset(new View());
+    widget_->SetContentsView(content_.get());
+
+    textfield_.reset(new Textfield());
+    textfield_->SetText(base::ASCIIToUTF16("Value"));
+    content_->AddChildView(textfield_.get());
+  }
+
+ protected:
+  scoped_ptr<Widget> widget_;
+  scoped_ptr<View> content_;
+  scoped_ptr<Textfield> textfield_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AXTreeSourceViewsTest);
+};
+
+TEST_F(AXTreeSourceViewsTest, SimpleAccessers) {
+  AXTreeSourceViews ax_tree(widget_.get());
+  ASSERT_EQ(widget_->GetRootView(), ax_tree.GetRoot());
+  std::vector<View*> content_children;
+  ax_tree.GetChildren(content_.get(), &content_children);
+  ASSERT_EQ(1U, content_children.size());
+  std::vector<View*> textfield_children;
+  ax_tree.GetChildren(textfield_.get(), &textfield_children);
+  ASSERT_EQ(0U, textfield_children.size());
+
+  int root_id = ax_tree.GetId(widget_->GetRootView());
+  int content_id = ax_tree.GetId(content_.get());
+  int textfield_id = ax_tree.GetId(textfield_.get());
+
+  ASSERT_EQ(1, root_id);
+  ASSERT_EQ(2, content_id);
+  ASSERT_EQ(3, textfield_id);
+}
+
+TEST_F(AXTreeSourceViewsTest, SimpleSerialization) {
+  AXTreeSourceViews ax_tree(widget_.get());
+  ui::AXTreeSource<View*>* ax_source =
+      static_cast<ui::AXTreeSource<View*>* >(&ax_tree);
+  ui::AXTreeSerializer<View*> ax_serializer(ax_source);
+  ui::AXTreeUpdate out_update;
+  ax_serializer.SerializeChanges(ax_tree.GetRoot(), &out_update);
+  ASSERT_EQ(3U, out_update.nodes.size());
+  ASSERT_EQ("id=1 root_web_area (0, 0)-(0, 0) name= value= child_ids=2",
+            out_update.nodes[0].ToString());
+  ASSERT_EQ("id=2 client (0, 0)-(0, 0) name= value= child_ids=3",
+            out_update.nodes[1].ToString());
+  ASSERT_EQ("id=3 text_field (0, 0)-(0, 0) name= value=Value",
+            out_update.nodes[2].ToString());
+}
+
+} // namespace views