| // 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 "components/ui_devtools/ui_element.h" |
| |
| #include <algorithm> |
| |
| #include "components/ui_devtools/Protocol.h" |
| #include "components/ui_devtools/ui_element_delegate.h" |
| |
| namespace ui_devtools { |
| namespace { |
| |
| static int node_ids = 0; |
| |
| } // namespace |
| |
| UIElement::~UIElement() { |
| if (owns_children_) { |
| for (auto* child : children_) |
| delete child; |
| } |
| children_.clear(); |
| } |
| |
| std::string UIElement::GetTypeName() const { |
| switch (type_) { |
| case UIElementType::ROOT: |
| return "Root"; |
| case UIElementType::WINDOW: |
| return "Window"; |
| case UIElementType::WIDGET: |
| return "Widget"; |
| case UIElementType::VIEW: |
| return "View"; |
| case UIElementType::FRAMESINK: |
| return "FrameSink"; |
| case UIElementType::SURFACE: |
| return "Surface"; |
| } |
| NOTREACHED(); |
| return std::string(); |
| } |
| |
| void UIElement::AddChild(UIElement* child, UIElement* before) { |
| if (before) { |
| auto iter = std::find(children_.begin(), children_.end(), before); |
| DCHECK(iter != children_.end()); |
| children_.insert(iter, child); |
| } else { |
| children_.push_back(child); |
| } |
| delegate_->OnUIElementAdded(this, child); |
| } |
| |
| void UIElement::ClearChildren() { |
| children_.clear(); |
| } |
| |
| void UIElement::RemoveChild(UIElement* child) { |
| delegate()->OnUIElementRemoved(child); |
| auto iter = std::find(children_.begin(), children_.end(), child); |
| DCHECK(iter != children_.end()); |
| children_.erase(iter); |
| } |
| |
| void UIElement::ReorderChild(UIElement* child, int new_index) { |
| auto iter = std::find(children_.begin(), children_.end(), child); |
| DCHECK(iter != children_.end()); |
| |
| // Don't re-order if the new position is the same as the old position. |
| if (std::distance(children_.begin(), iter) == new_index) |
| return; |
| children_.erase(iter); |
| |
| // Move child to new position |new_index| in vector |children_|. |
| new_index = std::min(static_cast<int>(children_.size()) - 1, new_index); |
| iter = children_.begin() + new_index; |
| children_.insert(iter, child); |
| delegate()->OnUIElementReordered(child->parent(), child); |
| } |
| |
| template <class T> |
| int UIElement::FindUIElementIdForBackendElement(T* element) const { |
| NOTREACHED(); |
| return 0; |
| } |
| |
| UIElement::UIElement(const UIElementType type, |
| UIElementDelegate* delegate, |
| UIElement* parent) |
| : node_id_(++node_ids), type_(type), parent_(parent), delegate_(delegate) { |
| delegate_->OnUIElementAdded(nullptr, this); |
| } |
| |
| } // namespace ui_devtools |