Create a unified UIElement interface for Widget, View and Window.

ash/common/devtools/widget_element.cc

+// Copyright 2017 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 "ash/common/devtools/widget_element.h"
+
+namespace ash {
+namespace devtools {
+
+WidgetElement::WidgetElement(views::Widget* widget) : widget_(widget) {}
+
+void WidgetElement::OnWillRemoveView(views::Widget* widget, views::View* view) {
+  if (view == widget->GetRootView())
+    DomAgentDelegate()->NotifyRemoveViewTree(view, nullptr, true);
+}
+
+void WidgetElement::OnWidgetBoundsChanged(views::Widget* widget,
+                                          const gfx::Rect& new_bounds) {
+  DomAgentDelegate()->NotifyOnWidgetBoundsChanged(widget);
+}
+
+bool WidgetElement::GetBounds(gfx::Rect* bounds) {
+  if (widget_) {
+    *bounds = widget_->GetRestoredBounds();
+    return true;
+  }
+  return false;
+}
+
+bool WidgetElement::SetBounds(const gfx::Rect& bounds) {
+  if (widget_) {
+    widget_->SetBounds(bounds);
+    return true;
+  }
+  return false;
+}
+
+bool WidgetElement::GetVisible(bool* visible) {
+  if (widget_) {
+    *visible = widget_->IsVisible();
+    return true;
+  }
+  return false;
+}
+
+bool WidgetElement::SetVisible(bool visible) {
+  if (widget_) {
+    if (visible != widget_->IsVisible()) {
+      if (visible)
+        widget_->Show();
+      else
+        widget_->Hide();
+    }
+    return true;
+  }
+  return false;
+}
+
+}  // namespace devtools
+}  // namespace ash