bookmark_bar_instructions_view.h revision 7d4cd473f85ac64c3747c96c277f9e506a0d2246 
1// Copyright (c) 2012 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 CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_VIEW_H_
6#define CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_VIEW_H_
7
8#include "base/basictypes.h"
9#include "base/compiler_specific.h"
10#include "ui/views/context_menu_controller.h"
11#include "ui/views/controls/link_listener.h"
12#include "ui/views/view.h"
13
14namespace chrome {
15class BookmarkBarInstructionsDelegate;
16}
17
18namespace views {
19class Label;
20class Link;
21}
22
23// BookmarkBarInstructionsView is a child of the bookmark bar that is visible
24// when the user has no bookmarks on the bookmark bar.
25// BookmarkBarInstructionsView shows a description of the bookmarks bar along
26// with a link to import bookmarks. Clicking the link results in notifying the
27// delegate.
28class BookmarkBarInstructionsView : public views::View,
29                                    public views::LinkListener,
30                                    public views::ContextMenuController {
31 public:
32  explicit BookmarkBarInstructionsView(
33      chrome::BookmarkBarInstructionsDelegate* delegate);
34
35  // views::View overrides.
36  virtual gfx::Size GetPreferredSize() OVERRIDE;
37  virtual void Layout() OVERRIDE;
38  virtual void OnThemeChanged() OVERRIDE;
39  virtual void ViewHierarchyChanged(
40      const ViewHierarchyChangedDetails& details) OVERRIDE;
41  virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
42
43  // views::LinkListener overrides.
44  virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
45
46 private:
47  virtual void ShowContextMenuForView(views::View* source,
48                                      const gfx::Point& point,
49                                      ui::MenuSourceType source_type) OVERRIDE;
50
51  void UpdateColors();
52
53  chrome::BookmarkBarInstructionsDelegate* delegate_;
54
55  views::Label* instructions_;
56  views::Link* import_link_;
57
58  // The baseline of the child views. This is -1 if none of the views support a
59  // baseline.
60  int baseline_;
61
62  // Have the colors of the child views been updated? This is initially false
63  // and set to true once we have a valid ThemeProvider.
64  bool updated_colors_;
65
66  DISALLOW_COPY_AND_ASSIGN(BookmarkBarInstructionsView);
67};
68
69#endif  // CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_VIEW_H_
70