1// Copyright (c) 2012 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_MESSAGE_CENTER_VIEWS_MESSAGE_VIEW_H_
6#define UI_MESSAGE_CENTER_VIEWS_MESSAGE_VIEW_H_
7
8#include "base/memory/scoped_ptr.h"
9#include "base/strings/string16.h"
10#include "third_party/skia/include/core/SkBitmap.h"
11#include "third_party/skia/include/core/SkColor.h"
12#include "ui/gfx/image/image.h"
13#include "ui/gfx/image/image_skia.h"
14#include "ui/gfx/insets.h"
15#include "ui/message_center/message_center_export.h"
16#include "ui/message_center/notification.h"
17#include "ui/views/controls/button/button.h"
18#include "ui/views/controls/slide_out_view.h"
19
20namespace ui {
21class MenuModel;
22}
23
24namespace views {
25class ImageButton;
26class ImageView;
27class Painter;
28class ScrollView;
29}
30
31namespace message_center {
32
33// Interface that MessageView uses to report clicks and other user actions.
34// Provided by creator of MessageView.
35class MessageViewController {
36 public:
37  virtual void ClickOnNotification(const std::string& notification_id) = 0;
38  virtual void RemoveNotification(const std::string& notification_id,
39                                  bool by_user) = 0;
40};
41
42// Individual notifications constants.
43const int kPaddingBetweenItems = 10;
44const int kPaddingHorizontal = 18;
45const int kWebNotificationButtonWidth = 32;
46const int kWebNotificationIconSize = 40;
47
48// An base class for a notification entry. Contains background, close button
49// and other elements shared by derived notification views.
50class MESSAGE_CENTER_EXPORT MessageView : public views::SlideOutView,
51                                          public views::ButtonListener {
52 public:
53  MessageView(MessageViewController* controller,
54              const std::string& notification_id,
55              const NotifierId& notifier_id,
56              const gfx::ImageSkia& small_image,
57              const base::string16& display_source);
58  virtual ~MessageView();
59
60  // Updates this view with the new data contained in the notification.
61  virtual void UpdateWithNotification(const Notification& notification);
62
63  // Returns the insets for the shadow it will have for rich notification.
64  static gfx::Insets GetShadowInsets();
65
66  // Creates a shadow around the notification.
67  void CreateShadowBorder();
68
69  bool IsCloseButtonFocused();
70  void RequestFocusOnCloseButton();
71
72  void set_accessible_name(const base::string16& accessible_name) {
73    accessible_name_ = accessible_name;
74  }
75
76  // Overridden from views::View:
77  virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE;
78  virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
79  virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE;
80  virtual bool OnKeyReleased(const ui::KeyEvent& event) OVERRIDE;
81  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
82  virtual void OnFocus() OVERRIDE;
83  virtual void OnBlur() OVERRIDE;
84  virtual void Layout() OVERRIDE;
85
86  // Overridden from ui::EventHandler:
87  virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
88
89  // Overridden from ButtonListener:
90  virtual void ButtonPressed(views::Button* sender,
91                             const ui::Event& event) OVERRIDE;
92
93  void set_scroller(views::ScrollView* scroller) { scroller_ = scroller; }
94  std::string notification_id() { return notification_id_; }
95  NotifierId notifier_id() { return notifier_id_; }
96  const base::string16& display_source() const { return display_source_; }
97
98 protected:
99  // Overridden from views::SlideOutView:
100  virtual void OnSlideOut() OVERRIDE;
101
102  views::ImageView* small_image() { return small_image_view_.get(); }
103  views::ImageButton* close_button() { return close_button_.get(); }
104  views::ScrollView* scroller() { return scroller_; }
105
106 private:
107  MessageViewController* controller_;
108  std::string notification_id_;
109  NotifierId notifier_id_;
110  views::View* background_view_;  // Owned by views hierarchy.
111  scoped_ptr<views::ImageButton> close_button_;
112  scoped_ptr<views::ImageView> small_image_view_;
113  views::ScrollView* scroller_;
114
115  base::string16 accessible_name_;
116
117  base::string16 display_source_;
118
119  scoped_ptr<views::Painter> focus_painter_;
120
121  DISALLOW_COPY_AND_ASSIGN(MessageView);
122};
123
124}  // namespace message_center
125
126#endif // UI_MESSAGE_CENTER_VIEWS_MESSAGE_VIEW_H_
127