src/ui/app_list/views/folder_header_view.h

   1 // Copyright (c) 2013 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_APP_LIST_VIEWS_FOLDER_HEADER_VIEW_H_
   6 #define UI_APP_LIST_VIEWS_FOLDER_HEADER_VIEW_H_
   7
   8 #include <string>
   9
  10 #include "ui/app_list/app_list_item_observer.h"
  11 #include "ui/views/controls/button/button.h"
  12 #include "ui/views/controls/textfield/textfield_controller.h"
  13 #include "ui/views/view.h"
  14
  15 namespace views {
  16 class ImageButton;
  17 }  // namespace views
  18
  19 namespace app_list {
  20
  21 class AppListFolderItem;
  22 class AppListFolderView;
  23 class FolderHeaderViewDelegate;
  24
  25 // FolderHeaderView contains a back button and an editable folder name field.
  26 class FolderHeaderView : public views::View,
  27                          public views::TextfieldController,
  28                          public views::ButtonListener,
  29                          public AppListItemObserver {
  30  public:
  31   explicit FolderHeaderView(FolderHeaderViewDelegate* delegate);
  32   virtual ~FolderHeaderView();
  33
  34   void SetFolderItem(AppListFolderItem* folder_item);
  35   void UpdateFolderNameVisibility(bool visible);
  36   void OnFolderItemRemoved();
  37
  38   // Overridden from views::View:
  39   virtual gfx::Size GetPreferredSize() OVERRIDE;
  40
  41  private:
  42   class FolderNameView;
  43
  44   // Updates UI.
  45   void Update();
  46
  47   // views::View overrides:
  48   virtual void Layout() OVERRIDE;
  49   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
  50
  51   // views::TextfieldController overrides:
  52   virtual void ContentsChanged(views::Textfield* sender,
  53                                const base::string16& new_contents) OVERRIDE;
  54
  55   // views::ButtonListener overrides:
  56   virtual void ButtonPressed(views::Button* sender,
  57                              const ui::Event& event) OVERRIDE;
  58
  59   // AppListItemObserver overrides:
  60   virtual void ItemIconChanged() OVERRIDE;
  61   virtual void ItemTitleChanged() OVERRIDE;
  62   virtual void ItemHighlightedChanged() OVERRIDE;
  63   virtual void ItemIsInstallingChanged() OVERRIDE;
  64   virtual void ItemPercentDownloadedChanged() OVERRIDE;
  65
  66   AppListFolderItem* folder_item_;  // Not owned.
  67
  68   views::ImageButton* back_button_;  // Owned by views hierarchy.
  69   FolderNameView* folder_name_view_;  // Owned by views hierarchy.
  70
  71   FolderHeaderViewDelegate* delegate_;
  72
  73   bool folder_name_visible_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(FolderHeaderView);
  76 };
  77
  78 }  // namespace app_list
  79
  80 #endif  // UI_APP_LIST_VIEWS_FOLDER_HEADER_VIEW_H_