MacViews/a11y: Allow accessibility clients to focus and unfocus focusable Views.

ui/views/accessibility/native_view_accessibility_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/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/accessibility/ax_node_data.h"
 #include "ui/gfx/geometry/rect_conversions.h"
 #include "ui/views/accessibility/native_view_accessibility.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/test/views_test_base.h"
 
 namespace views {
 namespace test {
@@ skipping 12 matching lines @@
 class NativeViewAccessibilityTest : public ViewsTestBase {
  public:
   NativeViewAccessibilityTest() {}
   ~NativeViewAccessibilityTest() override {}
 
   void SetUp() override {
     ViewsTestBase::SetUp();
 
     widget_ = new views::Widget;
     views::Widget::InitParams params =
-        CreateParams(views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
+        CreateParams(views::Widget::InitParams::TYPE_WINDOW);
     params.bounds = gfx::Rect(0, 0, 200, 200);
     widget_->Init(params);
 
     button_ = new TestButton();
     button_->SetSize(gfx::Size(20, 20));
     button_accessibility_ = NativeViewAccessibility::Create(button_);
 
     label_ = new Label();
     button_->AddChildView(label_);
     label_accessibility_ = NativeViewAccessibility::Create(label_);
 
-    widget_->SetContentsView(button_);
+    widget_->GetContentsView()->AddChildView(button_);
   }
 
   void TearDown() override {
     if (!widget_->IsClosed())
       widget_->Close();
     button_accessibility_->Destroy();
     button_accessibility_ = NULL;
     label_accessibility_->Destroy();
     label_accessibility_ = NULL;
     ViewsTestBase::TearDown();
@@ skipping 20 matching lines @@
 }
 
 TEST_F(NativeViewAccessibilityTest, LabelIsChildOfButton) {
   EXPECT_EQ(1, button_accessibility_->GetChildCount());
   EXPECT_EQ(label_->GetNativeViewAccessible(),
             button_accessibility_->ChildAtIndex(0));
   EXPECT_EQ(button_->GetNativeViewAccessible(),
             label_accessibility_->GetParent());
 }
 
+TEST_F(NativeViewAccessibilityTest, WritableFocus) {
+  widget_->Show();
+  // Make |button_| focusable, and focus/unfocus it via NativeViewAccessibility.
+  button_->SetFocusBehavior(View::FocusBehavior::ALWAYS);
+  EXPECT_EQ(nullptr, button_->GetFocusManager()->GetFocusedView());
+  EXPECT_EQ(nullptr, button_accessibility_->GetFocus());
+  EXPECT_TRUE(button_accessibility_->SetFocused(true));
+  EXPECT_EQ(button_, button_->GetFocusManager()->GetFocusedView());
+  EXPECT_EQ(button_->GetNativeViewAccessible(),
+            button_accessibility_->GetFocus());
+  EXPECT_TRUE(button_accessibility_->SetFocused(false));
+  EXPECT_EQ(nullptr, button_->GetFocusManager()->GetFocusedView());
+  EXPECT_EQ(nullptr, button_accessibility_->GetFocus());
+}
+
 // Subclass of NativeViewAccessibility that destroys itself when its
 // parent widget is destroyed, for the purposes of making sure this
 // doesn't lead to a crash.
 class TestNativeViewAccessibility : public NativeViewAccessibility {
  public:
   explicit TestNativeViewAccessibility(View* view)
       : NativeViewAccessibility(view) {}
 
   void OnWidgetDestroying(Widget* widget) override {
     bool is_destroying_parent_widget = (parent_widget_ == widget);
@@ skipping 18 matching lines @@
   // WidgetObserver. Note that TestNativeViewAccessibility is a subclass
   // defined above that destroys itself when its parent widget is destroyed.
   TestNativeViewAccessibility* child_accessible =
       new TestNativeViewAccessibility(child_widget->GetRootView());
   child_accessible->SetParentWidget(parent_widget.get());
   parent_widget.reset();
 }
 
 }  // namespace test
 }  // namespace views