Refactoring of tabbed-pane component so it can be ported to Linux toolkit_view

views/controls/tabbed_pane.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 VIEWS_CONTROLS_TABBED_PANE_H_
-#define VIEWS_CONTROLS_TABBED_PANE_H_
-
-#include "views/controls/native_control.h"
-
-namespace views {
-
-// The TabbedPane class is a view that shows tabs.  When the user clicks on a
-// tab, the associated view is displayed.
-// TODO (jcampan): implement GetPreferredSize().
-class WidgetWin;
-
-class TabbedPane : public NativeControl {
- public:
-  TabbedPane();
-  virtual ~TabbedPane();
-
-  // An interface an object can implement to be notified about events within
-  // the TabbedPane.
-  class Listener {
-   public:
-    // Called when the tab at the specified |index| is selected by the user.
-    virtual void TabSelectedAt(int index) = 0;
-  };
-  void SetListener(Listener* listener);
-
-  // Adds a new tab at the end of this TabbedPane with the specified |title|.
-  // |contents| is the view displayed when the tab is selected and is owned by
-  // the TabbedPane.
-  void AddTab(const std::wstring& title, View* contents);
-
-  // Adds a new tab at the specified |index| with the specified |title|.
-  // |contents| is the view displayed when the tab is selected and is owned by
-  // the TabbedPane. If |select_if_first_tab| is true and the tabbed pane is
-  // currently empty, the new tab is selected. If you pass in false for
-  // |select_if_first_tab| you need to explicitly invoke SelectTabAt, otherwise
-  // the tabbed pane will not have a valid selection.
-  void AddTabAtIndex(int index,
-                     const std::wstring& title,
-                     View* contents,
-                     bool select_if_first_tab);
-
-  // Removes the tab at the specified |index| and returns the associated content
-  // view.  The caller becomes the owner of the returned view.
-  View* RemoveTabAtIndex(int index);
-
-  // Selects the tab at the specified |index|, which must be valid.
-  void SelectTabAt(int index);
-
-  // Selects the tab containing the specified |contents|, which must be valid.
-  void SelectTabForContents(const View* contents);
-
-  // Returns the number of tabs.
-  int GetTabCount();
-
-  virtual HWND CreateNativeControl(HWND parent_container);
-  virtual LRESULT OnNotify(int w_param, LPNMHDR l_param);
-
-  virtual void Layout();
-
-  virtual RootView* GetContentsRootView();
-  virtual FocusTraversable* GetFocusTraversable();
-  virtual void ViewHierarchyChanged(bool is_add, View *parent, View *child);
-
- private:
-  // Changes the contents view to the view associated with the tab at |index|.
-  void DoSelectTabAt(int index);
-
-  // Returns the index of the tab containing the specified |contents|.
-  int GetIndexForContents(const View* contents) const;
-
-  void ResizeContents(HWND tab_control);
-
-  HWND tab_control_;
-
-  // The views associated with the different tabs.
-  std::vector<View*> tab_views_;
-
-  // The window displayed in the tab.
-  WidgetWin* content_window_;
-
-  // The listener we notify about tab selection changes.
-  Listener* listener_;
-
-  DISALLOW_EVIL_CONSTRUCTORS(TabbedPane);
-};
-
-}  // namespace views
-
-#endif  // #define VIEWS_CONTROLS_TABBED_PANE_H_