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_export.h"
  11 #include "ui/app_list/app_list_item_observer.h"
  12 #include "ui/views/controls/button/button.h"
  13 #include "ui/views/controls/textfield/textfield_controller.h"
  14 #include "ui/views/view.h"
  15
  16 namespace views {
  17 class ImageButton;
  18 }  // namespace views
  19
  20 namespace app_list {
  21
  22 class AppListFolderItem;
  23 class AppListFolderView;
  24 class FolderHeaderViewDelegate;
  25
  26 namespace test {
  27 class FolderHeaderViewTest;
  28 }
  29
  30 // FolderHeaderView contains a back button and an editable folder name field.
  31 class APP_LIST_EXPORT FolderHeaderView : public views::View,
  32                                          public views::TextfieldController,
  33                                          public views::ButtonListener,
  34                                          public AppListItemObserver {
  35  public:
  36   explicit FolderHeaderView(FolderHeaderViewDelegate* delegate);
  37   ~FolderHeaderView() override;
  38
  39   void SetFolderItem(AppListFolderItem* folder_item);
  40   void UpdateFolderNameVisibility(bool visible);
  41   void OnFolderItemRemoved();
  42   bool HasTextFocus() const;
  43   void SetTextFocus();
  44
  45   // Overridden from views::View:
  46   gfx::Size GetPreferredSize() const override;
  47
  48  private:
  49   class FolderNameView;
  50   friend class test::FolderHeaderViewTest;
  51
  52   // Updates UI.
  53   void Update();
  54
  55   // Updates the accessible name of the folder name control.
  56   void UpdateFolderNameAccessibleName();
  57
  58   // Gets and sets the folder name for test.
  59   const base::string16& GetFolderNameForTest();
  60   void SetFolderNameForTest(const base::string16& name);
  61
  62   // Returns true if folder name is enabled, only for testing use.
  63   bool IsFolderNameEnabledForTest() const;
  64
  65   // views::View overrides:
  66   void Layout() override;
  67   bool OnKeyPressed(const ui::KeyEvent& event) override;
  68   void OnPaint(gfx::Canvas* canvas) override;
  69
  70   // views::TextfieldController overrides:
  71   void ContentsChanged(views::Textfield* sender,
  72                        const base::string16& new_contents) override;
  73
  74   // views::ButtonListener overrides:
  75   void ButtonPressed(views::Button* sender, const ui::Event& event) override;
  76
  77   // AppListItemObserver overrides:
  78   void ItemNameChanged() override;
  79
  80   AppListFolderItem* folder_item_;  // Not owned.
  81
  82   views::ImageButton* back_button_;  // Owned by views hierarchy.
  83   FolderNameView* folder_name_view_;  // Owned by views hierarchy.
  84
  85   const base::string16 folder_name_placeholder_text_;
  86
  87   FolderHeaderViewDelegate* delegate_;
  88
  89   bool folder_name_visible_;
  90
  91   DISALLOW_COPY_AND_ASSIGN(FolderHeaderView);
  92 };
  93
  94 }  // namespace app_list
  95
  96 #endif  // UI_APP_LIST_VIEWS_FOLDER_HEADER_VIEW_H_