Beginnings of a new InfoBar system.

chrome/browser/views/infobars/infobar_container.h

+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_VIEWS_INFOBARS_INFOBAR_CONTAINER_H_
+#define CHROME_BROWSER_VIEWS_INFOBARS_INFOBAR_CONTAINER_H_
+
+#include "chrome/common/notification_service.h"
+#include "chrome/views/view.h"
+
+class BrowserView;
+class InfoBarDelegate;
+class TabContents;
+
+// A views::View subclass that contains a collection of InfoBars associated with
+// a TabContents.
+class InfoBarContainer : public views::View,
+                         public NotificationObserver {
+ public:
+  explicit InfoBarContainer(BrowserView* browser_view);
+  virtual ~InfoBarContainer();
+
+  // Changes the TabContents for which this container is showing InfoBars. Can
+  // be NULL.
+  void ChangeTabContents(TabContents* contents);
+
+  // Called by child InfoBars as they animate. If |completed| is true, the
+  // animation has finished running.
+  void InfoBarAnimated(bool completed);
+
+  // Remove the specified InfoBarDelegate from the selected TabContents. This
+  // will notify us back and cause us to close the View. This is called from
+  // the InfoBar's close button handler.
+  void RemoveDelegate(InfoBarDelegate* delegate);
+
+  // Overridden from views::View:
+  virtual gfx::Size GetPreferredSize();
+  virtual void Layout();
+ protected:
+  virtual void ViewHierarchyChanged(bool is_add,
+                                    views::View* parent,
+                                    views::View* child);
+ 
+ private:
+  // Overridden from NotificationObserver:
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+  // Constructs the InfoBars needed to reflect the state of the current
+  // TabContents associated with this container. No animations are run during
+  // this process.
+  void UpdateInfoBars();
+
+  // Adds an InfoBar for the specified delegate, in response to a notification
+  // from the selected TabContents. The InfoBar's appearance will be animated.
+  void AddInfoBar(InfoBarDelegate* delegate);
+
+  // Removes an InfoBar for the specified delegate, in response to a
+  // notification from the selected TabContents. The InfoBar's disappearance
+  // will be animated.
+  void RemoveInfoBar(InfoBarDelegate* delegate);
+
+  // The BrowserView that hosts this InfoBarContainer.
+  BrowserView* browser_view_;
+
+  // The TabContents for which we are currently showing InfoBars.
+  TabContents* tab_contents_;
+
+  DISALLOW_COPY_AND_ASSIGN(InfoBarContainer);
+};
+
+#endif  // #ifndef CHROME_BROWSER_VIEWS_INFOBARS_INFOBAR_CONTAINER_H_