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Side by Side Diff: ui/views/widget/native_widget_delegate.h

Issue 8547015: Revert 110949 - views: Move widget/ directory to ui/views. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 9 years, 1 month ago
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1 // Copyright (c) 2011 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_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_
6 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_
7 #pragma once
8
9 #include "ui/base/events.h"
10 #include "ui/gfx/native_widget_types.h"
11 #include "views/views_export.h"
12
13 #if defined(TOUCH_UI)
14 #include "ui/base/events.h"
15 #endif
16
17 namespace gfx {
18 class Canvas;
19 class Point;
20 class Rect;
21 class Size;
22 }
23
24 namespace views {
25 class InputMethod;
26 class KeyEvent;
27 class MouseEvent;
28 class TouchEvent;
29
30 namespace internal {
31
32 ////////////////////////////////////////////////////////////////////////////////
33 // NativeWidgetDelegate
34 //
35 // An interface implemented by the object that handles events sent by a
36 // NativeWidget implementation.
37 //
38 class VIEWS_EXPORT NativeWidgetDelegate {
39 public:
40 virtual ~NativeWidgetDelegate() {}
41
42 // Returns true if the window is modal.
43 virtual bool IsModal() const = 0;
44
45 // Returns true if the window is a dialog box.
46 virtual bool IsDialogBox() const = 0;
47
48 // Returns true if the window can be activated.
49 virtual bool CanActivate() const = 0;
50
51 virtual bool IsInactiveRenderingDisabled() const = 0;
52 virtual void EnableInactiveRendering() = 0;
53
54 // Called when the activation state of a window has changed.
55 virtual void OnNativeWidgetActivationChanged(bool active) = 0;
56
57 // Called when native focus moves from one native view to another.
58 virtual void OnNativeFocus(gfx::NativeView focused_view) = 0;
59 virtual void OnNativeBlur(gfx::NativeView focused_view) = 0;
60
61 // Called when the window is shown/hidden.
62 virtual void OnNativeWidgetVisibilityChanged(bool visible) = 0;
63
64 // Called when the native widget is created.
65 virtual void OnNativeWidgetCreated() = 0;
66
67 // Called just before the native widget is destroyed. This is the delegate's
68 // last chance to do anything with the native widget handle.
69 virtual void OnNativeWidgetDestroying() = 0;
70
71 // Called just after the native widget is destroyed.
72 virtual void OnNativeWidgetDestroyed() = 0;
73
74 // Returns the smallest size the window can be resized to by the user.
75 virtual gfx::Size GetMinimumSize() = 0;
76
77 // Called when the NativeWidget changed size to |new_size|.
78 virtual void OnNativeWidgetSizeChanged(const gfx::Size& new_size) = 0;
79
80 // Called when the user begins/ends to change the bounds of the window.
81 virtual void OnNativeWidgetBeginUserBoundsChange() = 0;
82 virtual void OnNativeWidgetEndUserBoundsChange() = 0;
83
84 // Returns true if the delegate has a FocusManager.
85 virtual bool HasFocusManager() const = 0;
86
87 // Paints the widget using acceleration. If the widget is not using
88 // accelerated painting this returns false and does nothing.
89 virtual bool OnNativeWidgetPaintAccelerated(
90 const gfx::Rect& dirty_region) = 0;
91
92 // Paints the rootview in the canvas. This will also refresh the compositor
93 // tree if necessary when accelerated painting is enabled.
94 virtual void OnNativeWidgetPaint(gfx::Canvas* canvas) = 0;
95
96 // Returns the non-client component (see ui/base/hit_test.h) containing
97 // |point|, in client coordinates.
98 virtual int GetNonClientComponent(const gfx::Point& point) = 0;
99
100 // Mouse and key event handlers.
101 virtual bool OnKeyEvent(const KeyEvent& event) = 0;
102 virtual bool OnMouseEvent(const MouseEvent& event) = 0;
103 virtual void OnMouseCaptureLost() = 0;
104 virtual ui::TouchStatus OnTouchEvent(const TouchEvent& event) = 0;
105
106 // Runs the specified native command. Returns true if the command is handled.
107 virtual bool ExecuteCommand(int command_id) = 0;
108
109 // Returns the input method of the widget this delegate is associated with.
110 // Note that this does not use the top level widget, so may return NULL
111 // if the widget doesn't have input method.
112 virtual InputMethod* GetInputMethodDirect() = 0;
113
114 virtual Widget* AsWidget() = 0;
115 virtual const Widget* AsWidget() const = 0;
116 };
117
118 } // namespace internal
119 } // namespace views
120
121 #endif // UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_
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