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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_TREE_NODE_H_ | 5 #ifndef MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_TREE_NODE_H_ |
6 #define MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_TREE_NODE_H_ | 6 #define MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_TREE_NODE_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
11 #include "base/observer_list.h" | 11 #include "base/observer_list.h" |
12 #include "mojo/services/public/cpp/view_manager/view_manager_types.h" | 12 #include "mojo/services/public/cpp/view_manager/view_manager_types.h" |
13 | 13 |
14 namespace mojo { | 14 namespace mojo { |
15 namespace services { | 15 namespace services { |
16 namespace view_manager { | 16 namespace view_manager { |
17 | 17 |
18 class ViewManager; | 18 class ViewManager; |
19 class ViewTreeNodeObserver; | 19 class ViewTreeNodeObserver; |
20 | 20 |
21 class ViewTreeNode { | 21 class ViewTreeNode { |
sky
2014/05/08 18:18:38
You should document ownership here.
| |
22 public: | 22 public: |
23 typedef std::vector<ViewTreeNode*> Children; | 23 typedef std::vector<ViewTreeNode*> Children; |
24 | 24 |
25 explicit ViewTreeNode(ViewManager* manager); | 25 static ViewTreeNode* Create(ViewManager* view_manager); |
26 ViewTreeNode(); // Used for tests. | 26 |
27 ~ViewTreeNode(); | 27 // Destroys this node and all its children. |
28 void Destroy(); | |
28 | 29 |
29 // Configuration. | 30 // Configuration. |
30 TransportNodeId id() const { return id_; } | 31 TransportNodeId id() const { return id_; } |
31 void set_owned_by_parent(bool owned_by_parent) { | |
32 owned_by_parent_ = owned_by_parent; | |
33 } | |
34 | 32 |
35 // Observation. | 33 // Observation. |
36 void AddObserver(ViewTreeNodeObserver* observer); | 34 void AddObserver(ViewTreeNodeObserver* observer); |
37 void RemoveObserver(ViewTreeNodeObserver* observer); | 35 void RemoveObserver(ViewTreeNodeObserver* observer); |
38 | 36 |
39 // Tree. | 37 // Tree. |
40 ViewTreeNode* parent() { return parent_; } | 38 ViewTreeNode* parent() { return parent_; } |
41 const ViewTreeNode* parent() const { return parent_; } | 39 const ViewTreeNode* parent() const { return parent_; } |
42 const Children& children() const { return children_; } | 40 const Children& children() const { return children_; } |
43 | 41 |
44 void AddChild(ViewTreeNode* child); | 42 void AddChild(ViewTreeNode* child); |
45 void RemoveChild(ViewTreeNode* child); | 43 void RemoveChild(ViewTreeNode* child); |
46 | 44 |
47 bool Contains(ViewTreeNode* child) const; | 45 bool Contains(ViewTreeNode* child) const; |
48 | 46 |
49 ViewTreeNode* GetChildById(TransportNodeId id); | 47 ViewTreeNode* GetChildById(TransportNodeId id); |
50 | 48 |
49 protected: | |
50 // This class is subclassed only by test classes that provide a public ctor. | |
51 ViewTreeNode(); | |
52 ~ViewTreeNode(); | |
53 | |
51 private: | 54 private: |
52 friend class ViewTreeNodePrivate; | 55 friend class ViewTreeNodePrivate; |
53 | 56 |
57 explicit ViewTreeNode(ViewManager* manager); | |
58 | |
59 void LocalDestroy(); | |
54 void LocalAddChild(ViewTreeNode* child); | 60 void LocalAddChild(ViewTreeNode* child); |
55 void LocalRemoveChild(ViewTreeNode* child); | 61 void LocalRemoveChild(ViewTreeNode* child); |
56 | 62 |
57 ViewManager* manager_; | 63 ViewManager* manager_; |
58 TransportNodeId id_; | 64 TransportNodeId id_; |
59 bool owned_by_parent_; | |
60 ViewTreeNode* parent_; | 65 ViewTreeNode* parent_; |
61 Children children_; | 66 Children children_; |
62 | 67 |
63 ObserverList<ViewTreeNodeObserver> observers_; | 68 ObserverList<ViewTreeNodeObserver> observers_; |
64 | 69 |
65 DISALLOW_COPY_AND_ASSIGN(ViewTreeNode); | 70 DISALLOW_COPY_AND_ASSIGN(ViewTreeNode); |
66 }; | 71 }; |
67 | 72 |
68 } // namespace view_manager | 73 } // namespace view_manager |
69 } // namespace services | 74 } // namespace services |
70 } // namespace mojo | 75 } // namespace mojo |
71 | 76 |
72 #endif // MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_TREE_NODE_H_ | 77 #endif // MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_TREE_NODE_H_ |
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