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