ui/message_center/views/notification_view.h

   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_NOTIFICATION_VIEW_H_
   6 #define UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_
   7
   8 #include <vector>
   9
  10 #include "ui/message_center/message_center_export.h"
  11 #include "ui/message_center/views/message_view.h"
  12
  13 namespace message_center {
  14
  15 class BoundedLabel;
  16 class NotificationChangeObserver;
  17
  18 // View that displays all current types of notification (web, basic, image, and
  19 // list). Future notification types may be handled by other classes, in which
  20 // case instances of those classes would be returned by the Create() factory
  21 // method below.
  22 class MESSAGE_CENTER_EXPORT NotificationView : public MessageView {
  23  public:
  24   // Creates appropriate MessageViews for notifications. Those currently are
  25   // always NotificationView or MessageSimpleView instances but in the future
  26   // may be instances of other classes, with the class depending on the
  27   // notification type.
  28   static MessageView* Create(const Notification& notification,
  29                              NotificationChangeObserver* observer,
  30                              bool expanded);
  31
  32   virtual ~NotificationView();
  33
  34   // Overridden from views::View:
  35   virtual gfx::Size GetPreferredSize() OVERRIDE;
  36   virtual int GetHeightForWidth(int width) OVERRIDE;
  37   virtual void Layout() OVERRIDE;
  38
  39   // Overridden from MessageView:
  40   virtual void ButtonPressed(views::Button* sender,
  41                              const ui::Event& event) OVERRIDE;
  42
  43  protected:
  44   NotificationView(const Notification& notification,
  45                    NotificationChangeObserver* observer,
  46                    bool expanded);
  47
  48  private:
  49   bool IsExpansionNeeded();
  50   size_t GetMessageLineLimit();
  51
  52   // Weak references to NotificationView descendants owned by their parents.
  53   views::View* background_view_;
  54   views::View* top_view_;
  55   BoundedLabel* title_view_;
  56   BoundedLabel* message_view_;
  57   std::vector<views::View*> item_views_;
  58   views::View* icon_view_;
  59   views::View* bottom_view_;
  60   views::View* image_view_;
  61   std::vector<views::View*> action_buttons_;
  62
  63   DISALLOW_COPY_AND_ASSIGN(NotificationView);
  64 };
  65
  66 }  // namespace message_center
  67
  68 #endif // UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_