ui/views/accessibility/view_accessibility_utils.cc

// Copyright 2018 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 "ui/views/accessibility/view_accessibility_utils.h"

#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_delegate.h"

namespace views {

// static
Widget* ViewAccessibilityUtils::GetFocusedChildWidgetForAccessibility(
    const View* view) {
  const FocusManager* focus_manager = view->GetFocusManager();
  if (!focus_manager)
    return nullptr;
  const View* focused_view = view->GetFocusManager()->GetFocusedView();
  if (!focused_view)
    return nullptr;

  std::set<Widget*> child_widgets;
  Widget::GetAllOwnedWidgets(view->GetWidget()->GetNativeView(),
                             &child_widgets);
  for (auto iter = child_widgets.begin(); iter != child_widgets.end(); ++iter) {
    Widget* child_widget = *iter;
    DCHECK_NE(view->GetWidget(), child_widget);

    if (IsFocusedChildWidget(child_widget, focused_view))
      return child_widget;
  }

  return nullptr;
}

// static
bool ViewAccessibilityUtils::IsFocusedChildWidget(Widget* widget,
                                                  const View* focused_view) {
  return widget->IsVisible() &&
         widget->GetContentsView()->Contains(focused_view);
};

}  // namespace views