chromeos: Move files in //ash/common to //ash, part 3

ash/common/devtools/ash_devtools_dom_agent.h

-// Copyright 2016 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.
-
-#ifndef ASH_COMMON_DEVTOOLS_ASH_DEVTOOLS_DOM_AGENT_H_
-#define ASH_COMMON_DEVTOOLS_ASH_DEVTOOLS_DOM_AGENT_H_
-
-#include "ash/common/wm_shell.h"
-#include "base/compiler_specific.h"
-#include "base/observer_list.h"
-#include "components/ui_devtools/DOM.h"
-#include "components/ui_devtools/devtools_base_agent.h"
-#include "ui/aura/window_observer.h"
-#include "ui/views/view.h"
-#include "ui/views/view_observer.h"
-#include "ui/views/widget/widget.h"
-#include "ui/views/widget/widget_observer.h"
-#include "ui/views/widget/widget_removals_observer.h"
-
-namespace ash {
-namespace devtools {
-
-class ASH_EXPORT AshDevToolsDOMAgentObserver {
- public:
-  virtual void OnWindowBoundsChanged(WmWindow* window) {}
-  virtual void OnWidgetBoundsChanged(views::Widget* widget) {}
-  virtual void OnViewBoundsChanged(views::View* view) {}
-};
-
-class ASH_EXPORT AshDevToolsDOMAgent
-    : public NON_EXPORTED_BASE(ui::devtools::UiDevToolsBaseAgent<
-                               ui::devtools::protocol::DOM::Metainfo>),
-      public aura::WindowObserver,
-      public views::WidgetObserver,
-      public views::WidgetRemovalsObserver,
-      public views::ViewObserver {
- public:
-  AshDevToolsDOMAgent(ash::WmShell* shell);
-  ~AshDevToolsDOMAgent() override;
-
-  // DOM::Backend
-  ui::devtools::protocol::Response disable() override;
-  ui::devtools::protocol::Response getDocument(
-      std::unique_ptr<ui::devtools::protocol::DOM::Node>* out_root) override;
-  ui::devtools::protocol::Response highlightNode(
-      std::unique_ptr<ui::devtools::protocol::DOM::HighlightConfig>
-          highlight_config,
-      ui::devtools::protocol::Maybe<int> node_id) override;
-  ui::devtools::protocol::Response hideHighlight() override;
-
-  // WindowObserver
-  void OnWindowHierarchyChanging(const HierarchyChangeParams& params) override;
-  void OnWindowHierarchyChanged(const HierarchyChangeParams& params) override;
-  void OnWindowStackingChanged(aura::Window* window) override;
-  void OnWindowBoundsChanged(aura::Window* window,
-                             const gfx::Rect& old_bounds,
-                             const gfx::Rect& new_bounds) override;
-
-  // views::WidgetRemovalsObserver
-  void OnWillRemoveView(views::Widget* widget, views::View* view) override;
-
-  // views::WidgetObserver
-  void OnWidgetBoundsChanged(views::Widget* widget,
-                             const gfx::Rect& new_bounds) override;
-
-  // views::ViewObserver
-  void OnChildViewRemoved(views::View* view, views::View* parent) override;
-  void OnChildViewAdded(views::View* view) override;
-  void OnChildViewReordered(views::View*) override;
-  void OnViewBoundsChanged(views::View* view) override;
-
-  WmWindow* GetWindowFromNodeId(int nodeId);
-  views::Widget* GetWidgetFromNodeId(int nodeId);
-  views::View* GetViewFromNodeId(int nodeId);
-
-  int GetNodeIdFromWindow(WmWindow* window);
-  int GetNodeIdFromWidget(views::Widget* widget);
-  int GetNodeIdFromView(views::View* view);
-
-  void AddObserver(AshDevToolsDOMAgentObserver* observer);
-  void RemoveObserver(AshDevToolsDOMAgentObserver* observer);
-
- private:
-  std::unique_ptr<ui::devtools::protocol::DOM::Node> BuildInitialTree();
-  std::unique_ptr<ui::devtools::protocol::DOM::Node> BuildTreeForWindow(
-      WmWindow* window);
-  std::unique_ptr<ui::devtools::protocol::DOM::Node> BuildTreeForRootWidget(
-      views::Widget* widget);
-  std::unique_ptr<ui::devtools::protocol::DOM::Node> BuildTreeForView(
-      views::View* view);
-
-  void AddWindowTree(WmWindow* window);
-  // |remove_observer| ensures that we don't add a duplicate observer in any
-  // observer callback. For example, |remove_observer| is false when rebuilding
-  // the tree in OnWindowStackingChanged so that the observer is not removed and
-  // re-added, thus causing endless calls on the observer.
-  void RemoveWindowTree(WmWindow* window, bool remove_observer);
-  void RemoveWindowNode(WmWindow* window, bool remove_observer);
-
-  // Don't need AddWidgetTree because |widget| will always be inside a window,
-  // so when windows are created, their widget nodes are created as well.
-  void RemoveWidgetTree(views::Widget* widget, bool remove_observer);
-  void RemoveWidgetNode(views::Widget* widget, bool remove_observer);
-
-  void AddViewTree(views::View* view);
-  void RemoveViewTree(views::View* view,
-                      views::View* parent,
-                      bool remove_observer);
-  void RemoveViewNode(views::View* view,
-                      views::View* parent,
-                      bool remove_observer);
-
-  void DestroyHighlightingWidget();
-  void RemoveObservers();
-  void Reset();
-
-  using WindowAndBoundsPair = std::pair<WmWindow*, gfx::Rect>;
-  WindowAndBoundsPair GetNodeWindowAndBounds(int node_id);
-  void InitializeHighlightingWidget();
-  void UpdateHighlight(const WindowAndBoundsPair& window_and_bounds,
-                       SkColor background,
-                       SkColor border);
-  ui::devtools::protocol::Response HighlightNode(
-      std::unique_ptr<ui::devtools::protocol::DOM::HighlightConfig>
-          highlight_config,
-      int node_id);
-  bool IsHighlightingWindow(WmWindow* window);
-
-  std::unique_ptr<views::Widget> widget_for_highlighting_;
-  ash::WmShell* shell_;
-
-  using WindowToNodeIdMap = std::unordered_map<WmWindow*, int>;
-  WindowToNodeIdMap window_to_node_id_map_;
-  using NodeIdToWindowMap = std::unordered_map<int, WmWindow*>;
-  NodeIdToWindowMap node_id_to_window_map_;
-
-  using WidgetToNodeIdMap = std::unordered_map<views::Widget*, int>;
-  WidgetToNodeIdMap widget_to_node_id_map_;
-  using NodeIdToWidgetMap = std::unordered_map<int, views::Widget*>;
-  NodeIdToWidgetMap node_id_to_widget_map_;
-
-  using ViewToNodeIdMap = std::unordered_map<views::View*, int>;
-  ViewToNodeIdMap view_to_node_id_map_;
-  using NodeIdToViewMap = std::unordered_map<int, views::View*>;
-  NodeIdToViewMap node_id_to_view_map_;
-
-  base::ObserverList<AshDevToolsDOMAgentObserver> observers_;
-
-  DISALLOW_COPY_AND_ASSIGN(AshDevToolsDOMAgent);
-};
-
-}  // namespace devtools
-}  // namespace ash
-
-#endif  // ASH_COMMON_DEVTOOLS_ASH_DEVTOOLS_DOM_AGENT_H_