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

ash/devtools/ui_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/devtools/ui_element.h"
+#include "ash/devtools/ui_element_delegate.h"
+#include "ash/devtools/view_element.h"
+#include "ash/devtools/widget_element.h"
+#include "ash/devtools/window_element.h"
+
+namespace ash {
+namespace devtools {
+
+int UIElement::GetNodeId() const {
+  return node_id_;
+}
+
+void UIElement::SetNodeId(int node_id) {
+  node_id_ = node_id;
+}
+
+UIElement* UIElement::GetParent() {
+  return parent_;
+}
+
+void UIElement::SetParent(UIElement* parent) {
+  parent_ = parent;
+}
+
+UIElementDelegate* UIElement::GetUIElementDelegate() {
+  return ui_element_delegate_;
+}
+
+void UIElement::SetUIElementDelegate(UIElementDelegate* ui_element_delegate) {
+  ui_element_delegate_ = ui_element_delegate;
+}
+
+UIElementType UIElement::GetType() const {
+  return type_;
+}
+
+void UIElement::SetType(UIElementType type) {
+  type_ = type;
+}
+
+std::vector<UIElement*>& UIElement::GetChildren() {
+  return children_;
+}
+
+void UIElement::SetChildren(std::vector<UIElement*>& children) {
+  children_ = children;
+}
+
+std::vector<UIElement*>::iterator UIElement::RemoveChild() {
+  for (auto* child_element : children_)
+    if (child_element)
+      child_element->RemoveChild();
+
+  children_.clear();
+
+  // Delete child element from vector ui_element siblings.
+  if (GetParent()) {
+    std::vector<UIElement*>& siblings = GetParent()->GetChildren();
+    std::vector<UIElement*>::iterator object = std::find_if(
+        siblings.begin(), siblings.end(),
+        [&](UIElement* obj) { return obj->GetNodeId() == node_id_; });
+    if (object != siblings.end()) {
+      (*object)->Destroy();
+      siblings.erase(std::remove(siblings.begin(), siblings.end(), *object));
+    }
+    return object;
+  }
+  return children_.end();
+}
+
+UIElement::UIElement(UIElementType type,
+                     UIElementDelegate* ui_element_delegate,
+                     UIElement* parent) {
+  type_ = type;
+  ui_element_delegate_ = ui_element_delegate;
+  parent_ = parent;
+}
+
+UIElement::~UIElement() {
+  for (auto* child : children_)
+    if (child)
+      delete child;
+  children_.clear();
+}
+
+}  // namespace devtools
+}  // namespace ash