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 #include "chrome/browser/chromeos/options/take_photo_dialog.h"
6
7 #include "base/string_util.h"
8 #include "base/utf_string_conversions.h"
9 #include "chrome/browser/chromeos/login/helper.h"
10 #include "chrome/browser/chromeos/login/user_manager.h"
11 #include "content/common/notification_service.h"
12 #include "content/common/notification_type.h"
13 #include "grit/chromium_strings.h"
14 #include "grit/generated_resources.h"
15 #include "grit/locale_settings.h"
16 #include "ui/base/accessibility/accessible_view_state.h"
17 #include "ui/base/l10n/l10n_util.h"
18 #include "views/layout/layout_constants.h"
19
20 namespace chromeos {
21
22 namespace {
23
24 // The resolution of the picture we want to get from the camera.
25 const int kFrameWidth = 480;
26 const int kFrameHeight = 480;
27
28 } // namespace
29
TakePhotoDialog()30 TakePhotoDialog::TakePhotoDialog()
31 : take_photo_view_(NULL),
32 camera_controller_(this) {
33 camera_controller_.set_frame_width(kFrameWidth);
34 camera_controller_.set_frame_height(kFrameHeight);
35 registrar_.Add(
36 this,
37 NotificationType::SCREEN_LOCK_STATE_CHANGED,
38 NotificationService::AllSources());
39 }
40
IsDialogButtonEnabled(MessageBoxFlags::DialogButton button) const41 bool TakePhotoDialog::IsDialogButtonEnabled(
42 MessageBoxFlags::DialogButton button) const {
43 if (button == MessageBoxFlags::DIALOGBUTTON_CANCEL)
44 return true;
45 else if (button == MessageBoxFlags::DIALOGBUTTON_OK)
46 return !take_photo_view_->is_capturing();
47 NOTREACHED();
48 return false;
49 }
50
Cancel()51 bool TakePhotoDialog::Cancel() {
52 camera_controller_.Stop();
53 return true;
54 }
55
Accept()56 bool TakePhotoDialog::Accept() {
57 camera_controller_.Stop();
58
59 UserManager* user_manager = UserManager::Get();
60 DCHECK(user_manager);
61
62 const UserManager::User& user = user_manager->logged_in_user();
63 DCHECK(!user.email().empty());
64
65 const SkBitmap& image = take_photo_view_->GetImage();
66 user_manager->SetLoggedInUserImage(image);
67 user_manager->SaveUserImage(user.email(), image);
68 return true;
69 }
70
GetContentsView()71 views::View* TakePhotoDialog::GetContentsView() {
72 // Lazy initialization upon request.
73 if (!take_photo_view_) {
74 take_photo_view_ = new TakePhotoView(this);
75 take_photo_view_->Init();
76 AddChildView(take_photo_view_);
77 InitCamera();
78 }
79 return this;
80 }
81
GetAccessibleState(ui::AccessibleViewState * state)82 void TakePhotoDialog::GetAccessibleState(ui::AccessibleViewState* state) {
83 state->name = l10n_util::GetStringUTF16(
84 IDS_OPTIONS_CHANGE_PICTURE_TAKE_PHOTO);
85 state->role = ui::AccessibilityTypes::ROLE_DIALOG;
86 }
87
OnCapturingStarted()88 void TakePhotoDialog::OnCapturingStarted() {
89 GetDialogClientView()->ok_button()->SetEnabled(false);
90 }
91
OnCapturingStopped()92 void TakePhotoDialog::OnCapturingStopped() {
93 GetDialogClientView()->ok_button()->SetEnabled(true);
94 GetDialogClientView()->ok_button()->RequestFocus();
95 }
96
OnCaptureSuccess()97 void TakePhotoDialog::OnCaptureSuccess() {
98 SkBitmap frame;
99 camera_controller_.GetFrame(&frame);
100 if (!frame.isNull())
101 take_photo_view_->UpdateVideoFrame(frame);
102 }
103
OnCaptureFailure()104 void TakePhotoDialog::OnCaptureFailure() {
105 take_photo_view_->ShowCameraError();
106 }
107
Observe(NotificationType type,const NotificationSource & source,const NotificationDetails & details)108 void TakePhotoDialog::Observe(NotificationType type,
109 const NotificationSource& source,
110 const NotificationDetails& details) {
111 if (type != NotificationType::SCREEN_LOCK_STATE_CHANGED)
112 return;
113
114 bool is_screen_locked = *Details<bool>(details).ptr();
115 if (is_screen_locked)
116 camera_controller_.Stop();
117 else
118 InitCamera();
119 }
120
Layout()121 void TakePhotoDialog::Layout() {
122 int left = views::kPanelHorizMargin;
123 int top = views::kPanelVertMargin;
124 int contents_width = width() - 2 * left;
125 int contents_height = height() - 2 * top;
126 take_photo_view_->SetBounds(left, top, contents_width, contents_height);
127 }
128
GetPreferredSize()129 gfx::Size TakePhotoDialog::GetPreferredSize() {
130 return gfx::Size(login::kUserImageSize * 2, (login::kUserImageSize * 3 / 2));
131 }
132
InitCamera()133 void TakePhotoDialog::InitCamera() {
134 take_photo_view_->ShowCameraInitializing();
135 camera_controller_.Start();
136 }
137
138 } // namespace chromeos
139
140