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1 // Copyright 2017 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 ASH_DEVTOOLS_UI_ELEMENT_H_ | |
6 #define ASH_DEVTOOLS_UI_ELEMENT_H_ | |
7 | |
8 #include <vector> | |
9 | |
10 #include "ash/ash_export.h" | |
11 #include "base/macros.h" | |
12 #include "ui/aura/window.h" | |
13 #include "ui/gfx/geometry/rect.h" | |
14 #include "ui/views/view.h" | |
15 | |
16 namespace ash { | |
17 namespace devtools { | |
18 | |
19 class UIElementDelegate; | |
20 | |
21 // UIElement type. | |
22 enum UIElementType { WINDOW, WIDGET, VIEW }; | |
23 | |
24 class ASH_EXPORT UIElement { | |
25 public: | |
26 virtual ~UIElement(); | |
27 int node_id() const { return node_id_; }; | |
28 std::string GetTypeName() const; | |
29 UIElement* parent() const { return parent_; }; | |
30 UIElementDelegate* delegate() const { return delegate_; }; | |
31 UIElementType type() const { return type_; }; | |
32 const std::vector<UIElement*>& children() const { return children_; }; | |
33 | |
34 // |child| is inserted in front of |before|. If |before| is null, it | |
35 // is inserted at the end. Parent takes ownership of the added child. | |
36 void AddChild(UIElement* child, UIElement* before = nullptr); | |
37 | |
38 // Remove |child| out of vector |children_| but |child| is not destroyed. | |
39 // The caller is responsible for destroying |child|. | |
40 void RemoveChild(UIElement* child); | |
41 | |
42 // Move |child| to position new_index in |children_|. | |
43 void ReorderChild(UIElement* child, int new_index); | |
44 | |
45 virtual void GetBounds(gfx::Rect* bounds) const = 0; | |
46 virtual void SetBounds(const gfx::Rect& bounds) = 0; | |
47 virtual void GetVisible(bool* visible) const = 0; | |
48 virtual void SetVisible(bool visible) = 0; | |
49 | |
50 // If element exists, return its associated native window and its bounds. | |
51 // Otherwise, return null and empty bounds. | |
52 virtual std::pair<aura::Window*, gfx::Rect> GetNodeWindowAndBounds() | |
53 const = 0; | |
54 | |
55 template <typename BackingT, typename T> | |
56 static BackingT* GetBackingElement(UIElement* element) { | |
57 return T::From(element); | |
58 }; | |
59 | |
60 protected: | |
61 UIElement(const UIElementType type, | |
62 UIElementDelegate* delegate, | |
63 UIElement* parent); | |
64 | |
65 private: | |
66 const int node_id_; | |
67 const UIElementType type_; | |
68 std::vector<UIElement*> children_; | |
69 UIElement* parent_; | |
70 UIElementDelegate* delegate_; | |
71 | |
72 DISALLOW_COPY_AND_ASSIGN(UIElement); | |
73 }; | |
74 | |
75 } // namespace devtools | |
76 } // namespace ash | |
77 | |
78 #endif // ASH_DEVTOOLS_UI_ELEMENT_H_ | |
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