1// Copyright (c) 2011 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_GTK_INFOBARS_INFOBAR_GTK_H_
6#define CHROME_BROWSER_UI_GTK_INFOBARS_INFOBAR_GTK_H_
7#pragma once
8
9#include "base/basictypes.h"
10#include "base/memory/scoped_ptr.h"
11#include "chrome/browser/tab_contents/infobar_delegate.h"
12#include "chrome/browser/ui/gtk/infobars/infobar_arrow_model.h"
13#include "chrome/browser/ui/gtk/owned_widget_gtk.h"
14#include "chrome/browser/ui/gtk/slide_animator_gtk.h"
15#include "content/common/notification_observer.h"
16#include "content/common/notification_registrar.h"
17#include "third_party/skia/include/core/SkPaint.h"
18#include "ui/base/gtk/gtk_signal.h"
19
20class CustomDrawButton;
21class GtkThemeService;
22class InfoBarContainerGtk;
23class InfoBarDelegate;
24
25class InfoBar : public SlideAnimatorGtk::Delegate,
26                public NotificationObserver,
27                public InfoBarArrowModel::Observer {
28 public:
29  explicit InfoBar(InfoBarDelegate* delegate);
30  virtual ~InfoBar();
31
32  InfoBarDelegate* delegate() const { return delegate_; }
33
34  // Get the top level native GTK widget for this infobar.
35  GtkWidget* widget();
36
37  // Set a link to the parent InfoBarContainer. This must be set before the
38  // InfoBar is added to the view hierarchy.
39  void set_container(InfoBarContainerGtk* container) { container_ = container; }
40
41  // Starts animating the InfoBar open.
42  void AnimateOpen();
43
44  // Opens the InfoBar immediately.
45  void Open();
46
47  // Starts animating the InfoBar closed. It will not be closed until the
48  // animation has completed, when |Close| will be called.
49  void AnimateClose();
50
51  // Closes the InfoBar immediately and removes it from its container. Notifies
52  // the delegate that it has closed. The InfoBar is deleted after this function
53  // is called.
54  void Close();
55
56  // Returns true if the infobar is showing the its open or close animation.
57  bool IsAnimating();
58
59  // Returns true if the infobar is showing the close animation.
60  bool IsClosing();
61
62  void SetThemeProvider(GtkThemeService* theme_provider);
63
64  // Show an arrow that originates from another infobar (i.e. a bar was added
65  // below this one). If |other| is NULL, stop showing the arrow.
66  void ShowArrowFor(InfoBar* other, bool animate);
67
68  // InfoBarArrowModel::Observer implementation.
69  virtual void PaintStateChanged();
70
71  // SlideAnimatorGtk::Delegate implementation.
72  virtual void Closed();
73
74  // NotificationObserver implementation.
75  virtual void Observe(NotificationType type,
76                       const NotificationSource& source,
77                       const NotificationDetails& details);
78
79  // Retrieves the component colors for the infobar's background
80  // gradient. (This varies by infobars and can be animated to change).
81  virtual void GetTopColor(InfoBarDelegate::Type type,
82                           double* r, double* g, double *b);
83  virtual void GetBottomColor(InfoBarDelegate::Type type,
84                              double* r, double* g, double *b);
85
86  // The total height of the info bar.
87  static const int kInfoBarHeight;
88
89 protected:
90  // Spacing after message (and before buttons).
91  static const int kEndOfLabelSpacing;
92  // Spacing between buttons.
93  static const int kButtonButtonSpacing;
94
95  // Removes our associated InfoBarDelegate from the associated TabContents.
96  // (Will lead to this InfoBar being closed).
97  void RemoveInfoBar() const;
98
99  // Adds |display_text| to the infobar. If |link_text| is not empty, it is
100  // rendered as a hyperlink and inserted into |display_text| at |link_offset|,
101  // or right aligned in the infobar if |link_offset| is |npos|. If a link is
102  // supplied, |link_callback| must not be null. It will be invoked on click.
103  void AddLabelWithInlineLink(const string16& display_text,
104                              const string16& link_text,
105                              size_t link_offset,
106                              GCallback callback);
107
108  // The top level widget of the infobar.
109  scoped_ptr<SlideAnimatorGtk> slide_widget_;
110
111  // The second highest widget in the hierarchy (after the slide widget).
112  GtkWidget* bg_box_;
113
114  // The hbox that holds infobar elements (button, text, icon, etc.).
115  GtkWidget* hbox_;
116
117  // The x that closes the bar.
118  scoped_ptr<CustomDrawButton> close_button_;
119
120  // The InfoBar's container
121  InfoBarContainerGtk* container_;
122
123  // The InfoBar's delegate.
124  InfoBarDelegate* delegate_;
125
126  // The theme provider, used for getting border colors.
127  GtkThemeService* theme_service_;
128
129  // The model that tracks the paint state of the arrow for the infobar
130  // below this one (if it exists).
131  InfoBarArrowModel arrow_model_;
132
133  NotificationRegistrar registrar_;
134
135 private:
136  CHROMEGTK_CALLBACK_0(InfoBar, void, OnCloseButton);
137  CHROMEGTK_CALLBACK_1(InfoBar, gboolean, OnBackgroundExpose, GdkEventExpose*);
138
139  void UpdateBorderColor();
140
141  DISALLOW_COPY_AND_ASSIGN(InfoBar);
142};
143
144#endif  // CHROME_BROWSER_UI_GTK_INFOBARS_INFOBAR_GTK_H_
145