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1 // Copyright 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 CHROME_BROWSER_UI_VIEWS_MESSAGE_CENTER_MESSAGE_CENTER_WIDGET_DELEGATE_H_ | |
6 #define CHROME_BROWSER_UI_VIEWS_MESSAGE_CENTER_MESSAGE_CENTER_WIDGET_DELEGATE_H_ | |
7 | |
8 #include "base/basictypes.h" | |
9 #include "base/compiler_specific.h" | |
10 #include "base/memory/weak_ptr.h" | |
11 #include "base/strings/string16.h" | |
12 #include "ui/gfx/geometry/point.h" | |
13 #include "ui/gfx/geometry/rect.h" | |
14 #include "ui/message_center/message_center.h" | |
15 #include "ui/message_center/message_center_tray.h" | |
16 #include "ui/message_center/message_center_tray_delegate.h" | |
17 #include "ui/message_center/views/message_center_view.h" | |
18 #include "ui/views/widget/widget_delegate.h" | |
19 #include "ui/views/widget/widget_observer.h" | |
20 | |
21 namespace message_center { | |
22 | |
23 enum Alignment { | |
24 ALIGNMENT_TOP = 1 << 0, | |
25 ALIGNMENT_LEFT = 1 << 1, | |
26 ALIGNMENT_BOTTOM = 1 << 2, | |
27 ALIGNMENT_RIGHT = 1 << 3, | |
28 ALIGNMENT_NONE = 1 << 4, | |
29 }; | |
30 | |
31 struct PositionInfo { | |
32 int max_height; | |
33 | |
34 // Alignment of the message center relative to the center of the screen. | |
35 Alignment message_center_alignment; | |
36 | |
37 // Alignment of the taskbar relative to the center of the screen. | |
38 Alignment taskbar_alignment; | |
39 | |
40 // Point relative to which message center is positioned. | |
41 gfx::Point inital_anchor_point; | |
42 }; | |
43 | |
44 class WebNotificationTray; | |
45 class MessageCenterFrameView; | |
46 | |
47 // MessageCenterWidgetDelegate is the message center's client view. It also | |
48 // creates the message center widget and sets the notifications. | |
49 // | |
50 //////////////////////////////////////////////////////////////////////////////// | |
51 class MessageCenterWidgetDelegate : public views::WidgetDelegate, | |
52 public message_center::MessageCenterView, | |
53 public views::WidgetObserver { | |
54 public: | |
55 MessageCenterWidgetDelegate(WebNotificationTray* tray, | |
56 MessageCenterTray* mc_tray, | |
57 bool initially_settings_visible, | |
58 const PositionInfo& pos_info, | |
59 const base::string16& title); | |
60 ~MessageCenterWidgetDelegate() override; | |
61 | |
62 // WidgetDelegate overrides: | |
63 View* GetContentsView() override; | |
64 views::NonClientFrameView* CreateNonClientFrameView( | |
65 views::Widget* widget) override; | |
66 void DeleteDelegate() override; | |
67 views::Widget* GetWidget() override; | |
68 const views::Widget* GetWidget() const override; | |
69 | |
70 // WidgetObserver overrides: | |
71 void OnWidgetActivationChanged(views::Widget* widget, bool active) override; | |
72 void OnWidgetClosing(views::Widget* widget) override; | |
73 | |
74 // View overrides: | |
75 void PreferredSizeChanged() override; | |
76 gfx::Size GetPreferredSize() const override; | |
77 gfx::Size GetMaximumSize() const override; | |
78 int GetHeightForWidth(int width) const override; | |
79 bool AcceleratorPressed(const ui::Accelerator& accelerator) override; | |
80 | |
81 private: | |
82 // Creates and initializes the message center widget. | |
83 void InitWidget(); | |
84 | |
85 // Shifts the message center anchor point such that the mouse click point is | |
86 // along the middle 60% of the width of the message center if taskbar is | |
87 // horizontal aligned. If vertically aligned, ensures that mouse click point | |
88 // is along the height of the message center (at least at a corner). | |
89 gfx::Point GetCorrectedAnchor(gfx::Size calculated_size); | |
90 | |
91 // Calculates the message center bounds using the position info and the | |
92 // corrected anchor. | |
93 gfx::Rect GetMessageCenterBounds(); | |
94 | |
95 // Insets of the message center border (set in MessageCenterFrameView). | |
96 gfx::Insets border_insets_; | |
97 | |
98 // Info necessary to calculate the estimated position of the message center. | |
99 PositionInfo pos_info_; | |
100 | |
101 WebNotificationTray* tray_; | |
102 }; | |
103 | |
104 } // namespace message_center | |
105 | |
106 #endif // CHROME_BROWSER_UI_VIEWS_MESSAGE_CENTER_MESSAGE_CENTER_WIDGET_DELEGATE
_H_ | |
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