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_EXTENSIONS_EXTENSION_UNINSTALL_DIALOG_H_
6#define CHROME_BROWSER_EXTENSIONS_EXTENSION_UNINSTALL_DIALOG_H_
7
8#include "base/basictypes.h"
9#include "base/compiler_specific.h"
10#include "base/memory/weak_ptr.h"
11#include "ui/gfx/image/image_skia.h"
12#include "ui/gfx/native_widget_types.h"
13
14class Profile;
15
16namespace base {
17class MessageLoop;
18}
19
20namespace gfx {
21class Image;
22}
23
24namespace extensions {
25class Extension;
26
27class ExtensionUninstallDialog
28    : public base::SupportsWeakPtr<ExtensionUninstallDialog> {
29 public:
30  class Delegate {
31   public:
32    // We call this method to signal that the uninstallation should continue.
33    virtual void ExtensionUninstallAccepted() = 0;
34
35    // We call this method to signal that the uninstallation should stop.
36    virtual void ExtensionUninstallCanceled() = 0;
37
38   protected:
39    virtual ~Delegate() {}
40  };
41
42  // Creates a platform specific implementation of ExtensionUninstallDialog. The
43  // dialog will be modal to |parent|, or a non-modal dialog if |parent| is
44  // NULL.
45  static ExtensionUninstallDialog* Create(Profile* profile,
46                                          gfx::NativeWindow parent,
47                                          Delegate* delegate);
48
49  virtual ~ExtensionUninstallDialog();
50
51  // This is called to verify whether the uninstallation should proceed.
52  // Starts the process of showing a confirmation UI, which is split into two.
53  // 1) Set off a 'load icon' task.
54  // 2) Handle the load icon response and show the UI (OnImageLoaded).
55  void ConfirmUninstall(const Extension* extension);
56
57  // This shows the same dialog as above, except it also shows which extension
58  // triggered the dialog by calling chrome.management.uninstall API.
59  void ConfirmProgrammaticUninstall(const Extension* extension,
60                                    const Extension* triggering_extension);
61
62  std::string GetHeadingText();
63
64 protected:
65  // Constructor used by the derived classes.
66  ExtensionUninstallDialog(Profile* profile, Delegate* delegate);
67
68  // TODO(sashab): Remove protected members: crbug.com/397395
69  Profile* const profile_;
70
71  // The delegate we will call Accepted/Canceled on after confirmation dialog.
72  Delegate* delegate_;
73
74  // The extension we are showing the dialog for.
75  const Extension* extension_;
76
77  // The extension triggering the dialog if the dialog was shown by
78  // chrome.management.uninstall.
79  const Extension* triggering_extension_;
80
81  // The extensions icon.
82  gfx::ImageSkia icon_;
83
84 private:
85  // Sets the icon that will be used in the dialog. If |icon| contains an empty
86  // image, then we use a default icon instead.
87  void SetIcon(const gfx::Image& image);
88
89  void OnImageLoaded(const std::string& extension_id, const gfx::Image& image);
90
91  // Displays the prompt. This should only be called after loading the icon.
92  // The implementations of this method are platform-specific.
93  virtual void Show() = 0;
94
95  base::MessageLoop* ui_loop_;
96
97  DISALLOW_COPY_AND_ASSIGN(ExtensionUninstallDialog);
98};
99
100}  // namespace extensions
101
102#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_UNINSTALL_DIALOG_H_
103