- add sources.
[platform/framework/web/crosswalk.git] / src / ui / v2 / public / view.h
1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef UI_V2_PUBLIC_VIEW_H_
6 #define UI_V2_PUBLIC_VIEW_H_
7
8 #include <vector>
9
10 #include "base/memory/scoped_ptr.h"
11 #include "base/observer_list.h"
12 #include "ui/compositor/layer_type.h"
13 #include "ui/gfx/rect.h"
14 #include "ui/v2/public/layout.h"
15 #include "ui/v2/public/painter.h"
16 #include "ui/v2/public/v2_export.h"
17
18 namespace ui {
19 class Layer;
20 }
21
22 namespace v2 {
23
24 class Layout;
25 class Painter;
26 class ViewObserver;
27 class ViewLayerOwner;
28
29 class V2_EXPORT View /* : public EventTarget */ {
30  public:
31   typedef std::vector<View*> Children;
32
33   View();
34   virtual ~View();
35
36   // Configuration.
37
38   void set_owned_by_parent(bool owned_by_parent) {
39     owned_by_parent_ = owned_by_parent;
40   }
41
42   // View takes ownership.
43   void SetPainter(Painter* painter);
44
45   // See documentation in layout.h. A layout manager's rules apply to this
46   // View's children.
47   // View takes ownership.
48   void SetLayout(Layout* layout);
49
50   // Observation.
51
52   void AddObserver(ViewObserver* observer);
53   void RemoveObserver(ViewObserver* observer);
54
55   // Disposition.
56
57   void SetBounds(const gfx::Rect& bounds);
58   gfx::Rect bounds() const { return bounds_; }
59
60   void SetVisible(bool visible);
61   bool visible() const { return visible_; }
62
63   // Tree.
64
65   View* parent() { return parent_; }
66   const View* parent() const { return parent_; }
67   const Children& children() const { return children_; }
68
69   void AddChild(View* child);
70   void RemoveChild(View* child);
71
72   bool Contains(View* child) const;
73
74   void StackChildAtTop(View* child);
75   void StackChildAtBottom(View* child);
76   void StackChildAbove(View* child, View* other);
77   void StackChildBelow(View* child, View* other);
78
79   // Layer.
80
81   inline const ui::Layer* layer() const;
82   inline ui::Layer* layer();
83   bool HasLayer() const;
84   void CreateLayer(ui::LayerType layer_type);
85   void DestroyLayer();
86   ui::Layer* AcquireLayer();
87
88  private:
89   friend class ViewPrivate;
90
91   // Disposition attributes.
92   gfx::Rect bounds_;
93   bool visible_;
94
95   scoped_ptr<Painter> painter_;
96   scoped_ptr<Layout> layout_;
97
98   // Tree.
99   bool owned_by_parent_;
100   View* parent_;
101   Children children_;
102
103   // Layer.
104   scoped_ptr<ViewLayerOwner> layer_owner_;
105
106   ObserverList<ViewObserver> observers_;
107
108   DISALLOW_COPY_AND_ASSIGN(View);
109 };
110
111 }  // namespace v2
112
113 #endif  // UI_V2_PUBLIC_VIEW_H_