1// Copyright 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 ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_
6#define ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_
7
8#include "ash/system/tray/actionable_view.h"
9#include "base/basictypes.h"
10#include "base/compiler_specific.h"
11#include "ui/gfx/font.h"
12#include "ui/gfx/text_constants.h"
13
14namespace views {
15class Label;
16}
17
18namespace ash {
19class ViewClickListener;
20
21// A view that changes background color on hover, and triggers a callback in the
22// associated ViewClickListener on click. The view can also be forced to
23// maintain a fixed height.
24class HoverHighlightView : public ActionableView {
25 public:
26  explicit HoverHighlightView(ViewClickListener* listener);
27  virtual ~HoverHighlightView();
28
29  // Convenience function for adding an icon and a label.  This also sets the
30  // accessible name.
31  void AddIconAndLabel(const gfx::ImageSkia& image,
32                       const base::string16& text,
33                       gfx::Font::FontStyle style);
34
35  // Convenience function for adding a label with padding on the left for a
36  // blank icon.  This also sets the accessible name.
37  // Returns label after parenting it.
38  views::Label* AddLabel(const base::string16& text,
39                         gfx::HorizontalAlignment alignment,
40                         gfx::Font::FontStyle style);
41
42  // Convenience function for adding an optional check and a label.  In the
43  // absence of a check, padding is added to align with checked items.
44  // Returns label after parenting it.
45  views::Label* AddCheckableLabel(const base::string16& text,
46                                  gfx::Font::FontStyle style,
47                                  bool checked);
48
49  // Allows view to expand its height.
50  // Size of unexapandable view is fixed and equals to kTrayPopupItemHeight.
51  void SetExpandable(bool expandable);
52
53  void set_highlight_color(SkColor color) { highlight_color_ = color; }
54  void set_default_color(SkColor color) { default_color_ = color; }
55  void set_text_highlight_color(SkColor c) { text_highlight_color_ = c; }
56  void set_text_default_color(SkColor color) { text_default_color_ = color; }
57
58  views::Label* text_label() { return text_label_; }
59
60  bool hover() const { return hover_; }
61
62 protected:
63  // Overridden from views::View.
64  virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE;
65
66 private:
67  // Overridden from ActionableView:
68  virtual bool PerformAction(const ui::Event& event) OVERRIDE;
69
70  // Overridden from views::View.
71  virtual gfx::Size GetPreferredSize() const OVERRIDE;
72  virtual int GetHeightForWidth(int width) const OVERRIDE;
73  virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE;
74  virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE;
75  virtual void OnEnabledChanged() OVERRIDE;
76  virtual void OnPaintBackground(gfx::Canvas* canvas) OVERRIDE;
77  virtual void OnFocus() OVERRIDE;
78
79  ViewClickListener* listener_;
80  views::Label* text_label_;
81  SkColor highlight_color_;
82  SkColor default_color_;
83  SkColor text_highlight_color_;
84  SkColor text_default_color_;
85  bool hover_;
86  bool expandable_;
87  bool checkable_;
88  bool checked_;
89
90  DISALLOW_COPY_AND_ASSIGN(HoverHighlightView);
91};
92
93}  // namespace ash
94
95#endif  // ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_
96