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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. Use of this | 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. Use of this |
2 // source code is governed by a BSD-style license that can be found in the | 2 // source code is governed by a BSD-style license that can be found in the |
3 // LICENSE file. | 3 // LICENSE file. |
4 | 4 |
5 #ifndef VIEWS_CONTROLS_NATIVE_CONTROL_WIN_H_ | 5 #ifndef VIEWS_CONTROLS_NATIVE_CONTROL_WIN_H_ |
6 #define VIEWS_CONTROLS_NATIVE_CONTROL_WIN_H_ | 6 #define VIEWS_CONTROLS_NATIVE_CONTROL_WIN_H_ |
7 | 7 |
8 #include "views/controls/hwnd_view.h" | 8 #include "views/controls/native/native_view_host.h" |
9 | 9 |
10 namespace views { | 10 namespace views { |
11 | 11 |
12 // A View that hosts a native Windows control. | 12 // A View that hosts a native Windows control. |
13 class NativeControlWin : public HWNDView { | 13 class NativeControlWin : public NativeViewHost { |
14 public: | 14 public: |
15 static const wchar_t* kNativeControlWinKey; | 15 static const wchar_t* kNativeControlWinKey; |
16 | 16 |
17 NativeControlWin(); | 17 NativeControlWin(); |
18 virtual ~NativeControlWin(); | 18 virtual ~NativeControlWin(); |
19 | 19 |
20 // Called by the containing WidgetWin when a message is received from the HWND | 20 // Called by the containing WidgetWin when a message is received from the HWND |
21 // created by an object derived from NativeControlWin. Derived classes MUST | 21 // created by an object derived from NativeControlWin. Derived classes MUST |
22 // call _this_ version of the function if they override it and do not handle | 22 // call _this_ version of the function if they override it and do not handle |
23 // all of the messages listed in widget_win.cc ProcessNativeControlWinMessage. | 23 // all of the messages listed in widget_win.cc ProcessNativeControlWinMessage. |
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53 // has been created. | 53 // has been created. |
54 virtual bool NotifyOnKeyDown() const { return false; } | 54 virtual bool NotifyOnKeyDown() const { return false; } |
55 | 55 |
56 // Called when the NativeControlWin is attached to a View hierarchy with a | 56 // Called when the NativeControlWin is attached to a View hierarchy with a |
57 // valid Widget. The NativeControlWin should use this opportunity to create | 57 // valid Widget. The NativeControlWin should use this opportunity to create |
58 // its associated HWND. | 58 // its associated HWND. |
59 virtual void CreateNativeControl() = 0; | 59 virtual void CreateNativeControl() = 0; |
60 | 60 |
61 // MUST be called by the subclass implementation of |CreateNativeControl| | 61 // MUST be called by the subclass implementation of |CreateNativeControl| |
62 // immediately after creating the control HWND, otherwise it won't be attached | 62 // immediately after creating the control HWND, otherwise it won't be attached |
63 // to the HWNDView and will be effectively orphaned. | 63 // to the NativeViewHost and will be effectively orphaned. |
64 virtual void NativeControlCreated(HWND native_control); | 64 virtual void NativeControlCreated(HWND native_control); |
65 | 65 |
66 // Returns additional extended style flags. When subclasses call | 66 // Returns additional extended style flags. When subclasses call |
67 // CreateWindowEx in order to create the underlying control, they must OR the | 67 // CreateWindowEx in order to create the underlying control, they must OR the |
68 // ExStyle parameter with the value returned by this function. | 68 // ExStyle parameter with the value returned by this function. |
69 // | 69 // |
70 // We currently use this method in order to add flags such as WS_EX_LAYOUTRTL | 70 // We currently use this method in order to add flags such as WS_EX_LAYOUTRTL |
71 // to the HWND for views with right-to-left UI layout. | 71 // to the HWND for views with right-to-left UI layout. |
72 DWORD GetAdditionalExStyle() const; | 72 DWORD GetAdditionalExStyle() const; |
73 | 73 |
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91 | 91 |
92 // The window procedure before we subclassed. | 92 // The window procedure before we subclassed. |
93 static WNDPROC original_wndproc_; | 93 static WNDPROC original_wndproc_; |
94 | 94 |
95 DISALLOW_COPY_AND_ASSIGN(NativeControlWin); | 95 DISALLOW_COPY_AND_ASSIGN(NativeControlWin); |
96 }; | 96 }; |
97 | 97 |
98 } // namespace views | 98 } // namespace views |
99 | 99 |
100 #endif // #ifndef VIEWS_CONTROLS_NATIVE_CONTROL_WIN_H_ | 100 #endif // #ifndef VIEWS_CONTROLS_NATIVE_CONTROL_WIN_H_ |
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