| // Copyright (c) 2012 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 UI_APP_LIST_PAGE_SWITCHER_H_ |
| #define UI_APP_LIST_PAGE_SWITCHER_H_ |
| |
| #include "base/basictypes.h" |
| #include "ui/app_list/pagination_model_observer.h" |
| #include "ui/views/controls/button/button.h" |
| #include "ui/views/view.h" |
| |
| namespace app_list { |
| |
| class PaginationModel; |
| |
| // PageSwitcher represents its underlying PaginationModel with a button strip. |
| // Each page in the PageinationModel has a button in the strip and when the |
| // button is clicked, the corresponding page becomes selected. |
| class PageSwitcher : public views::View, |
| public views::ButtonListener, |
| public PaginationModelObserver { |
| public: |
| explicit PageSwitcher(PaginationModel* model); |
| virtual ~PageSwitcher(); |
| |
| // Overridden from views::View: |
| virtual gfx::Size GetPreferredSize() OVERRIDE; |
| virtual void Layout() OVERRIDE; |
| |
| private: |
| void CalculateButtonWidthAndSpacing(int contents_width); |
| |
| // Overridden from views::ButtonListener: |
| virtual void ButtonPressed(views::Button* sender, |
| const ui::Event& event) OVERRIDE; |
| |
| // Overridden from PaginationModelObserver: |
| virtual void TotalPagesChanged() OVERRIDE; |
| virtual void SelectedPageChanged(int old_selected, int new_selected) OVERRIDE; |
| virtual void TransitionChanged() OVERRIDE; |
| |
| PaginationModel* model_; // Owned by parent AppListView. |
| views::View* buttons_; // Owned by views hierarchy. |
| |
| DISALLOW_COPY_AND_ASSIGN(PageSwitcher); |
| }; |
| |
| } // namespace app_list |
| |
| #endif // UI_APP_LIST_PAGE_SWITCHER_H_ |