resolution_notification_controller.cc revision a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7 
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#include "ash/display/resolution_notification_controller.h"
6
7#include "ash/display/display_controller.h"
8#include "ash/display/display_manager.h"
9#include "ash/shell.h"
10#include "ash/system/system_notifier.h"
11#include "base/strings/utf_string_conversions.h"
12#include "grit/ash_resources.h"
13#include "grit/ash_strings.h"
14#include "ui/base/l10n/l10n_util.h"
15#include "ui/base/l10n/time_format.h"
16#include "ui/base/resource/resource_bundle.h"
17#include "ui/gfx/display.h"
18#include "ui/gfx/screen.h"
19#include "ui/message_center/message_center.h"
20#include "ui/message_center/notification.h"
21#include "ui/message_center/notification_delegate.h"
22
23using message_center::Notification;
24
25namespace ash {
26namespace internal {
27namespace {
28
29bool g_use_timer = true;
30
31class ResolutionChangeNotificationDelegate
32    : public message_center::NotificationDelegate {
33 public:
34  ResolutionChangeNotificationDelegate(
35      ResolutionNotificationController* controller,
36      bool has_timeout);
37
38 protected:
39  virtual ~ResolutionChangeNotificationDelegate();
40
41 private:
42  // message_center::NotificationDelegate overrides:
43  virtual void Display() OVERRIDE;
44  virtual void Error() OVERRIDE;
45  virtual void Close(bool by_user) OVERRIDE;
46  virtual void Click() OVERRIDE;
47  virtual bool HasClickedListener() OVERRIDE;
48  virtual void ButtonClick(int button_index) OVERRIDE;
49
50  ResolutionNotificationController* controller_;
51  bool has_timeout_;
52
53  DISALLOW_COPY_AND_ASSIGN(ResolutionChangeNotificationDelegate);
54};
55
56ResolutionChangeNotificationDelegate::ResolutionChangeNotificationDelegate(
57    ResolutionNotificationController* controller,
58    bool has_timeout)
59    : controller_(controller),
60      has_timeout_(has_timeout) {
61  DCHECK(controller_);
62}
63
64ResolutionChangeNotificationDelegate::~ResolutionChangeNotificationDelegate() {
65}
66
67void ResolutionChangeNotificationDelegate::Display() {
68}
69
70void ResolutionChangeNotificationDelegate::Error() {
71}
72
73void ResolutionChangeNotificationDelegate::Close(bool by_user) {
74  if (by_user)
75    controller_->AcceptResolutionChange(false);
76}
77
78void ResolutionChangeNotificationDelegate::Click() {
79  controller_->AcceptResolutionChange(true);
80}
81
82bool ResolutionChangeNotificationDelegate::HasClickedListener() {
83  return true;
84}
85
86void ResolutionChangeNotificationDelegate::ButtonClick(int button_index) {
87  // If there's the timeout, the first button is "Accept". Otherwise the
88  // button click should be "Revert".
89  if (has_timeout_ && button_index == 0)
90    controller_->AcceptResolutionChange(true);
91  else
92    controller_->RevertResolutionChange();
93}
94
95}  // namespace
96
97// static
98const int ResolutionNotificationController::kTimeoutInSec = 15;
99
100// static
101const char ResolutionNotificationController::kNotificationId[] =
102    "chrome://settings/display/resolution";
103
104struct ResolutionNotificationController::ResolutionChangeInfo {
105  ResolutionChangeInfo(int64 display_id,
106                       const gfx::Size& old_resolution,
107                       const gfx::Size& new_resolution,
108                       const base::Closure& accept_callback);
109  ~ResolutionChangeInfo();
110
111  // The id of the display where the resolution change happens.
112  int64 display_id;
113
114  // The resolution before the change.
115  gfx::Size old_resolution;
116
117  // The new resolution after the change.
118  gfx::Size new_resolution;
119
120  // The callback when accept is chosen.
121  base::Closure accept_callback;
122
123  // The remaining timeout in seconds. 0 if the change does not time out.
124  uint8 timeout_count;
125
126  // The timer to invoke OnTimerTick() every second. This cannot be
127  // OneShotTimer since the message contains text "automatically closed in xx
128  // seconds..." which has to be updated every second.
129  base::RepeatingTimer<ResolutionNotificationController> timer;
130
131 private:
132  DISALLOW_COPY_AND_ASSIGN(ResolutionChangeInfo);
133};
134
135ResolutionNotificationController::ResolutionChangeInfo::ResolutionChangeInfo(
136    int64 display_id,
137    const gfx::Size& old_resolution,
138    const gfx::Size& new_resolution,
139    const base::Closure& accept_callback)
140    : display_id(display_id),
141      old_resolution(old_resolution),
142      new_resolution(new_resolution),
143      accept_callback(accept_callback),
144      timeout_count(0) {
145  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
146  if (!display_manager->HasInternalDisplay() &&
147      display_manager->num_connected_displays() == 1u) {
148    timeout_count = kTimeoutInSec;
149  }
150}
151
152ResolutionNotificationController::ResolutionChangeInfo::
153    ~ResolutionChangeInfo() {
154}
155
156ResolutionNotificationController::ResolutionNotificationController() {
157  Shell::GetInstance()->display_controller()->AddObserver(this);
158  Shell::GetScreen()->AddObserver(this);
159}
160
161ResolutionNotificationController::~ResolutionNotificationController() {
162  Shell::GetInstance()->display_controller()->RemoveObserver(this);
163  Shell::GetScreen()->RemoveObserver(this);
164}
165
166void ResolutionNotificationController::SetDisplayResolutionAndNotify(
167    int64 display_id,
168    const gfx::Size& old_resolution,
169    const gfx::Size& new_resolution,
170    const base::Closure& accept_callback) {
171  // If multiple resolution changes are invoked for the same display,
172  // the original resolution for the first resolution change has to be used
173  // instead of the specified |old_resolution|.
174  gfx::Size original_resolution;
175  if (change_info_ && change_info_->display_id == display_id) {
176    DCHECK(change_info_->new_resolution == old_resolution);
177    original_resolution = change_info_->old_resolution;
178  }
179
180  change_info_.reset(new ResolutionChangeInfo(
181      display_id, old_resolution, new_resolution, accept_callback));
182  if (!original_resolution.IsEmpty())
183    change_info_->old_resolution = original_resolution;
184
185  // SetDisplayResolution() causes OnConfigurationChanged() and the notification
186  // will be shown at that point.
187  Shell::GetInstance()->display_manager()->SetDisplayResolution(
188      display_id, new_resolution);
189}
190
191bool ResolutionNotificationController::DoesNotificationTimeout() {
192  return change_info_ && change_info_->timeout_count > 0;
193}
194
195void ResolutionNotificationController::CreateOrUpdateNotification(
196    bool enable_spoken_feedback) {
197  message_center::MessageCenter* message_center =
198      message_center::MessageCenter::Get();
199  if (!change_info_) {
200    message_center->RemoveNotification(kNotificationId, false /* by_user */);
201    return;
202  }
203
204  base::string16 timeout_message;
205  message_center::RichNotificationData data;
206  if (change_info_->timeout_count > 0) {
207    data.buttons.push_back(message_center::ButtonInfo(
208        l10n_util::GetStringUTF16(IDS_ASH_DISPLAY_RESOLUTION_CHANGE_ACCEPT)));
209    timeout_message = l10n_util::GetStringFUTF16(
210        IDS_ASH_DISPLAY_RESOLUTION_TIMEOUT,
211        ui::TimeFormat::TimeDurationLong(
212            base::TimeDelta::FromSeconds(change_info_->timeout_count)));
213  }
214  data.buttons.push_back(message_center::ButtonInfo(
215        l10n_util::GetStringUTF16(IDS_ASH_DISPLAY_RESOLUTION_CHANGE_REVERT)));
216
217  data.should_make_spoken_feedback_for_popup_updates = enable_spoken_feedback;
218
219  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
220  scoped_ptr<Notification> notification(new Notification(
221      message_center::NOTIFICATION_TYPE_SIMPLE,
222      kNotificationId,
223      l10n_util::GetStringFUTF16(
224          IDS_ASH_STATUS_TRAY_DISPLAY_RESOLUTION_CHANGED,
225          UTF8ToUTF16(Shell::GetInstance()->display_manager()->
226              GetDisplayNameForId(change_info_->display_id)),
227          UTF8ToUTF16(change_info_->new_resolution.ToString())),
228      timeout_message,
229      bundle.GetImageNamed(IDR_AURA_UBER_TRAY_DISPLAY),
230      base::string16() /* display_source */,
231      message_center::NotifierId(
232          message_center::NotifierId::SYSTEM_COMPONENT,
233          system_notifier::kNotifierDisplayResolutionChange),
234      data,
235      new ResolutionChangeNotificationDelegate(
236          this, change_info_->timeout_count > 0)));
237  notification->SetSystemPriority();
238  message_center->AddNotification(notification.Pass());
239}
240
241void ResolutionNotificationController::OnTimerTick() {
242  if (!change_info_)
243    return;
244
245  --change_info_->timeout_count;
246  if (change_info_->timeout_count == 0)
247    RevertResolutionChange();
248  else
249    CreateOrUpdateNotification(false);
250}
251
252void ResolutionNotificationController::AcceptResolutionChange(
253    bool close_notification) {
254  if (close_notification) {
255    message_center::MessageCenter::Get()->RemoveNotification(
256        kNotificationId, false /* by_user */);
257  }
258  base::Closure callback = change_info_->accept_callback;
259  change_info_.reset();
260  callback.Run();
261}
262
263void ResolutionNotificationController::RevertResolutionChange() {
264  message_center::MessageCenter::Get()->RemoveNotification(
265      kNotificationId, false /* by_user */);
266  int64 display_id = change_info_->display_id;
267  gfx::Size old_resolution = change_info_->old_resolution;
268  change_info_.reset();
269  Shell::GetInstance()->display_manager()->SetDisplayResolution(
270      display_id, old_resolution);
271}
272
273void ResolutionNotificationController::OnDisplayBoundsChanged(
274    const gfx::Display& display) {
275}
276
277void ResolutionNotificationController::OnDisplayAdded(
278    const gfx::Display& new_display) {
279}
280
281void ResolutionNotificationController::OnDisplayRemoved(
282    const gfx::Display& old_display) {
283  if (change_info_ && change_info_->display_id == old_display.id())
284    RevertResolutionChange();
285}
286
287void ResolutionNotificationController::OnDisplayConfigurationChanged() {
288  if (!change_info_)
289    return;
290
291  CreateOrUpdateNotification(true);
292  if (g_use_timer && change_info_->timeout_count > 0) {
293    change_info_->timer.Start(FROM_HERE,
294                              base::TimeDelta::FromSeconds(1),
295                              this,
296                              &ResolutionNotificationController::OnTimerTick);
297  }
298}
299
300void ResolutionNotificationController::SuppressTimerForTest() {
301  g_use_timer = false;
302}
303
304}  // namespace internal
305}  // namespace ash
306